diff --git a/.gitignore b/.gitignore index ece75eb45..57863614a 100644 --- a/.gitignore +++ b/.gitignore @@ -33,3 +33,5 @@ report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json # Finder (MacOS) folder config .DS_Store +__pycache__/ +*.pyc diff --git a/client/ccstatusline-ipc b/client/ccstatusline-ipc index 10d9f07c9..2c38f4eae 100755 --- a/client/ccstatusline-ipc +++ b/client/ccstatusline-ipc @@ -79,29 +79,65 @@ context=$( [ "${#context}" -le "$max_context_bytes" ] \ || die "invocation context too large (${#context} > $max_context_bytes bytes)" -# fd 3 is duped from the original stdin before the heredoc takes over fd 0, -# so curl reads its config from stdin (--config -) while the body still -# points at the caller's piped status JSON (@/dev/fd/3). Buffering the body -# in a variable means stdout is written only after curl reports success: a -# truncated transfer or an HTTP error (--fail) leaves stdout empty. -body=$(curl -q -sS --fail \ - --unix-socket "$socket" \ - --config - \ - --data-binary @/dev/fd/3 \ - -H 'Content-Type: application/json' \ - --noproxy '*' \ - --connect-timeout "$connect_timeout" \ - --max-time "$total_timeout" \ - 'http://localhost/v1/render' \ - 3<&0 < "$payload_tmp" + +attempt=0 +while :; do + code=$(curl -q -sS --fail \ + --unix-socket "$socket" \ + --config - \ + --data-binary @"$payload_tmp" \ + -o "$body_tmp" \ + -w '%{http_code}' \ + -H 'Content-Type: application/json' \ + --noproxy '*' \ + --connect-timeout "$connect_timeout" \ + --max-time "$total_timeout" \ + 'http://localhost/v1/render' \ + </client/ccstatusline-ipc`, POSIX `sh` + `curl` + only — no Node on the repaint path. +- If the daemon is down, the client fails with empty stdout and exit 1: the + status line goes quiet, nothing else breaks, and **no daemon is + auto-started**. Start it explicitly with `daemon start` (or `install`). +- `daemon status` prints what `/v1/health` exposes — protocol and build + identity, pid, uptime, last render time, in-flight renders and aggregate + request counters. It never prints the auth token. Exit code is 1 unless a + compatible daemon answers, so scripts can gate on it. +- After upgrading ccstatusline, a running daemon reports as `incompatible`; + `daemon restart` (or any `daemon start`/`install`) performs a verified + upgrade restart. +- With a custom `--config`, start the daemon with the same `--config`; the + client wrapper itself takes no arguments. +- **Windows keeps the one-shot status line** — the Unix-socket transport does + not exist there, and every `daemon` subcommand refuses with an explicit + message (see [WINDOWS.md](WINDOWS.md)). diff --git a/docs/WINDOWS.md b/docs/WINDOWS.md index 4bc807999..a3f3848c8 100644 --- a/docs/WINDOWS.md +++ b/docs/WINDOWS.md @@ -214,3 +214,12 @@ For the best experience, configure Windows Terminal with these recommended setti `ccstatusline` includes Windows-specific runtime behavior: - **UTF-8 piped output fix**: In piped mode, it attempts to set code page `65001` for reliable symbol rendering - **Path compatibility**: Git and CWD widgets handle both `/` and `\` separators + +## Daemon (Shared Render Mode) + +The daemon render mode is **not available on Windows**: its private IPC +transport is a per-user Unix socket. Windows keeps the regular one-shot +status line, and every `ccstatusline daemon` subcommand (including +`daemon install`) refuses with an explicit message instead of writing a +client-wrapper command that could not work. No action is needed to stay on +the one-shot path — it is the only path on Windows. diff --git a/docs/daemon-19-bench.md b/docs/daemon-19-bench.md new file mode 100644 index 000000000..f9bf5ecfa --- /dev/null +++ b/docs/daemon-19-bench.md @@ -0,0 +1,77 @@ +# ccstatusline daemon vs one-shot (issue #19) + +One-shot vs shared-mode (daemon) aggregate cost. Shared numbers cover the +daemon plus every client process; one-shot covers the fresh process per +render and its children (git etc.). + +- runtime: `node /Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-24/dist/ccstatusline.js` +- machine: Apple M5, 10 cores, macOS-26.6.2-arm64-arm-64bit +- generated: 2026-09-30T10:57:23+0800, loadavg before/after: 5.5/9.48 + +## Per-scenario aggregate cost + +| scenario | renders | CPU s total | CPU s/render | CPU s/wall-min | agg RSS MB mean→max | p50 ms | p95 ms | p99 ms | distinct hashes | +|---|---|---|---|---|---|---|---|---|---| +| s1-cold-small | 1 | 0.1756 | 175.63 | 61.647 | 64.7→76.4 | 168.76 | 168.76 | 168.76 | 1 | +| s1-warm-small | 6 | 0.7083 | 118.056 | 67.174 | 46.9→74.3 | 105.72 | 107.64 | 107.64 | 1 | +| s1-shared-cold-small | 1 | 0.0254 | 25.377 | 6.582 | 78.2→93.5 | 54.79 | 54.79 | 54.79 | 1 | +| s1-shared-warm-small | 6 | 0.1016 | 16.93 | 40.546 | 94.9→99.2 | 24.52 | 26.74 | 26.74 | 1 | +| s10-cold-small | 10 | 1.7948 | 179.475 | 333.198 | 532.5→740.9 | 303.36 | 315.93 | 315.93 | 1 | +| s10-warm-small | 60 | 10.2056 | 170.093 | 355.471 | 490.5→705.5 | 256.02 | 369.35 | 524.54 | 1 | +| s10-shared-cold-small | 10 | 0.3061 | 30.612 | 59.12 | 98.5→169.0 | 120.54 | 129.49 | 129.49 | 1 | +| s10-shared-warm-small | 60 | 1.6332 | 27.22 | 149.85 | 146.0→179.2 | 99.99 | 179.47 | 199.07 | 1 | +| s36-cold-small | 36 | 6.6432 | 184.534 | 350.976 | 1922.7→2505.6 | 986.18 | 1103.96 | 1106.16 | 1 | +| s36-warm-small | 216 | 38.8789 | 179.995 | 372.811 | 1995.4→2352.8 | 1007.73 | 1346.83 | 1448.1 | 1 | +| s36-shared-cold-small | 36 | 1.4178 | 39.383 | 146.92 | 153.8→297.3 | 268.14 | 335.71 | 404.66 | 1 | +| s36-shared-warm-small | 216 | 7.5039 | 34.74 | 247.352 | 282.3→388.7 | 229.21 | 682.07 | 845.38 | 1 | +| s50-cold-small | 50 | 9.1324 | 182.647 | 380.071 | 2060.4→2783.0 | 1091.7 | 1298.33 | 1327.7 | 1 | +| s50-warm-small | 300 | 53.6651 | 178.884 | 429.075 | 2774.7→3462.9 | 1218.47 | 1486.33 | 1586.27 | 1 | +| s50-shared-cold-small | 50 | 2.084 | 41.68 | 163.71 | 198.9→444.8 | 288.46 | 515.01 | 523.16 | 1 | +| s50-shared-warm-small | 300 | 11.2553 | 37.518 | 260.539 | 346.0→555.5 | 279.78 | 784.97 | 1483.55 | 1 | +| s50-warm-large-large | 300 | 64.7237 | 215.746 | 413.895 | 3060.1→3922.5 | 1526.73 | 1872.9 | 2092.51 | 1 | +| s50-shared-warm-large-large | 300 | 14.0298 | 46.766 | 159.901 | 454.5→634.3 | 362.11 | 2272.7 | 3896.3 | 1 | +| s50-warm-small-slow | 300 | 75.1512 | 250.504 | 355.694 | 3881.9→5754.0 | 1969.11 | 2636.41 | 2755.31 | 1 | +| s50-shared-warm-small-slow | FAILED | ` for _ in range(n)] ^^^^^^^^^^^^^^^^^^^ File "/Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-` | +| s50-daemon-recovery-small | 50 | 2.9105 | 58.211 | 94.664 | 101.9→116.0 | 108.77 | 138.34 | 161.21 | 0 | + +## One-shot vs shared comparison + +| sessions | workload | phase | one-shot CPU s | shared CPU s | reduction | hashes equal | +|---|---|---|---|---|---|---| +| 1 | small | cold | 0.1756 | 0.0254 | 85.5% | True | +| 1 | small | warm | 0.7083 | 0.1016 | 85.7% | True | +| 10 | small | cold | 1.7948 | 0.3061 | 82.9% | True | +| 10 | small | warm | 10.2056 | 1.6332 | 84.0% | True | +| 36 | small | cold | 6.6432 | 1.4178 | 78.7% | True | +| 36 | small | warm | 38.8789 | 7.5039 | 80.7% | True | +| 50 | small | cold | 9.1324 | 2.084 | 77.2% | True | +| 50 | small | warm | 53.6651 | 11.2553 | 79.0% | True | +| 50 | large | warm | 64.7237 | 14.0298 | 78.3% | True | +| 50 | small | warm | 75.1512 | None | None% | False | + +## Acceptance gate + +- scenario: s36-warm-small (warmed 36-session workload) +- target: >=50% aggregate-CPU reduction, shared vs one-shot, daemon and clients included +- measured: one-shot 38.8789 s CPU, shared 7.5039 s CPU → 80.7% reduction +- result: PASS (measured, not assumed) + +## Recovery (SIGKILL, dead-daemon wave, restart) + +- clients that failed on the dead daemon with rc!=0: 50 of 50 +- clients that still succeeded (should be 0): 0 +- failed clients left stdout empty (no partial status line): True +- daemon restart to ready: 135.5 ms +- sessions re-rendered after restart: 50, output mismatches vs warm wave: [] +- gate: PASS (violations fail the whole run) + +## Notes and honesty + +- Measured numbers only; no extrapolation. +- Shared-mode aggregate CPU covers the daemon AND every client process (sh + curl): both are reaped children of the scenario interpreter, accounted via getrusage(RUSAGE_CHILDREN). +- Cold shared mode includes booting the daemon (no process, cold caches) inside the measured window. +- Idle-timer refreshes are not modeled as a separate phase; warm runs measure steady back-to-back repaint waves, and the daemon idle sweep runs only after 5 quiet minutes. +- Slow-command scenario: one custom-command widget sleeping 400ms per render, cache TTL 0. +- Recovery scenario: SIGKILL of the daemon (no cleanup), a full client wave against the dead daemon must fail with rc!=0 and empty stdout (never a partial line), then the daemon is restarted and every session re-rendered with byte-identical output. +- Aggregate RSS is sampled via ps over live process trees (~25ms cadence); short-lived children can be missed, so it undercounts. +- Runs were rejected/waited while system loadavg1 exceeded 14.0 (gate recorded above); concurrent sibling sessions still add noise. diff --git a/docs/daemon-19-results.json b/docs/daemon-19-results.json new file mode 100644 index 000000000..24ea16583 --- /dev/null +++ b/docs/daemon-19-results.json @@ -0,0 +1,1390 @@ +{ + "meta": { + "runtime": "node", + "entry": "/Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-24/dist/ccstatusline.js", + "ccsl_fork": true, + "machine": { + "cpu_model": "Apple M5", + "cpu_count": 10, + "os": "macOS-26.6.2-arm64-arm-64bit", + "python": "3.12.10" + }, + "generated": "2026-09-30T10:57:23+0800", + "loadavg_start": 5.5, + "loadavg_end": 9.48, + "max_load_gate": 14.0, + "notes": [ + "Measured numbers only; no extrapolation.", + "Shared-mode aggregate CPU covers the daemon AND every client process (sh + curl): both are reaped children of the scenario interpreter, accounted via getrusage(RUSAGE_CHILDREN).", + "Cold shared mode includes booting the daemon (no process, cold caches) inside the measured window.", + "Idle-timer refreshes are not modeled as a separate phase; warm runs measure steady back-to-back repaint waves, and the daemon idle sweep runs only after 5 quiet minutes.", + "Slow-command scenario: one custom-command widget sleeping 400ms per render, cache TTL 0.", + "Recovery scenario: SIGKILL of the daemon (no cleanup), a full client wave against the dead daemon must fail with rc!=0 and empty stdout (never a partial line), then the daemon is restarted and every session re-rendered with byte-identical output.", + "Aggregate RSS is sampled via ps over live process trees (~25ms cadence); short-lived children can be missed, so it undercounts.", + "Runs were rejected/waited while system loadavg1 exceeded 14.0 (gate recorded above); concurrent sibling sessions still add noise." + ] + }, + "runs": [ + { + "label": "s1-cold-small", + "runtime": "node", + "entry": "/Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-24/dist/ccstatusline.js", + "sessions": 1, + "mode": "cold", + "transcript": "small", + "transcript_bytes": 650195, + "count_pass": false, + "renders": 1, + "warmup_renders": 0, + "width_override": true, + "ccsl_fork": true, + "slow_config": false, + "cpu_user_s": 0.1438, + "cpu_sys_s": 0.0318, + "cpu_total_s": 0.1756, + "cpu_per_render_ms": 175.63, + "cpu_s_per_wall_minute": 61.647, + "renders_per_wall_minute": 351.0, + "wall_s": 0.171, + "peak_rss_kb": 78992, + "rss_sampling": { + "samples": 3, + "distinct_pids": 1, + "aggregate_mean_kb": 66224, + "aggregate_max_kb": 78192 + }, + "latency_ms": { + "n": 1, + "mean": 168.76, + "p50": 168.76, + "p95": 168.76, + "p99": 168.76 + }, + "output_hashes": [ + "69aa1f345fd61e159aea5c99074045fd5acfacc44fccd344b9b3dd56d6955b8d" + ], + 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"output_hashes": [ + "69aa1f345fd61e159aea5c99074045fd5acfacc44fccd344b9b3dd56d6955b8d" + ], + "distinct_output_hashes": 1, + "spawn_counts_measured": {}, + "spawn_counts_per_render": {}, + "first_stderr": "curl: (22) The requested URL returned error: 503\n", + "loadavg_start": 13.1, + "loadavg_end": 14.22, + "timestamp": "2026-09-30T10:52:41+0800", + "daemon": { + "counters": { + "requests": 518, + "ok": 290, + "busy": 228 + }, + "uptime_s": 2, + "last_render_ms": 1, + "active_renders": 0, + "startup_ms": 122.8 + }, + "recovery": null, + "shims": { + "shims": [], + "counts_measured": {} + } + }, + { + "label": "s50-cold-small", + "runtime": "node", + "entry": "/Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-24/dist/ccstatusline.js", + "sessions": 50, + "mode": "cold", + "transcript": "small", + "transcript_bytes": 650195, + "count_pass": false, + "renders": 50, + "warmup_renders": 0, + "width_override": true, + "ccsl_fork": true, + "slow_config": false, + "cpu_user_s": 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written to /private/tmp/ccsl-daemon-19/fixture-root/runs/s50-warm-small/home/.config/ccstatusline/settings.json\n", + "loadavg_start": 12.34, + "loadavg_end": 23.44, + "timestamp": "2026-09-30T10:53:02+0800", + "shims": { + "shims": [], + "counts_measured": {} + } + }, + { + "label": "s50-shared-cold-small", + "runtime": "node", + "entry": "/Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-24/dist/ccstatusline.js", + "sessions": 50, + "mode": "shared-cold", + "transcript": "small", + "transcript_bytes": 650195, + "count_pass": false, + "renders": 50, + "warmup_renders": 0, + "width_override": true, + "ccsl_fork": true, + "slow_config": false, + "cpu_user_s": 0.6838, + "cpu_sys_s": 1.4002, + "cpu_total_s": 2.084, + "cpu_per_render_ms": 41.68, + "cpu_s_per_wall_minute": 163.71, + "renders_per_wall_minute": 3927.8, + "wall_s": 0.764, + "peak_rss_kb": 5088, + "rss_sampling": { + "samples": 14, + "distinct_pids": 339, + "aggregate_mean_kb": 203665.1, + "aggregate_max_kb": 455504 + 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"s50-warm-small-slow", + "runtime": "node", + "entry": "/Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-24/dist/ccstatusline.js", + "sessions": 50, + "mode": "warm", + "transcript": "small", + "transcript_bytes": 650195, + "count_pass": false, + "renders": 300, + "warmup_renders": 100, + "width_override": true, + "ccsl_fork": true, + "slow_config": true, + "cpu_user_s": 64.0336, + "cpu_sys_s": 11.1176, + "cpu_total_s": 75.1512, + "cpu_per_render_ms": 250.504, + "cpu_s_per_wall_minute": 355.694, + "renders_per_wall_minute": 1419.9, + "wall_s": 12.677, + "peak_rss_kb": 80304, + "rss_sampling": { + "samples": 183, + "distinct_pids": 1200, + "aggregate_mean_kb": 3975054.0, + "aggregate_max_kb": 5892144 + }, + "latency_ms": { + "n": 300, + "mean": 2019.34, + "p50": 1969.11, + "p95": 2636.41, + "p99": 2755.31 + }, + "output_hashes": [ + "21f5d64d08d8dc0b36a02ae985a311b9baf3658bcf9411cfa80013cedadff63b" + ], + "distinct_output_hashes": 1, + "spawn_counts_measured": {}, + "spawn_counts_per_render": {}, + "first_stderr": "", + "loadavg_start": 12.0, + "loadavg_end": 25.4, + "timestamp": "2026-09-30T10:55:56+0800", + "shims": { + "shims": [], + "counts_measured": {} + } + }, + { + "label": "s50-shared-warm-small-slow", + "mode": "shared-warm", + "kind": "shared", + "error": " for _ in range(n)]\n ^^^^^^^^^^^^^^^^^^^\n File \"/Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-24/scripts/benchmark-render.py\", line 342, in once\n raise RuntimeError('render failed rc=%s stderr=%s' % (p.returncode, p.stderr[:500]))\nRuntimeError: render failed rc=1 stderr=curl: (22) The requested URL returned error: 503\ncurl: (22) The requested URL returned error: 503\ncurl: (22) The requested URL returned error: 503\ncurl: (22) The requested URL returned error: 503\ncurl: (22) The requested URL returned error: 503\ncurl: (22) The requested URL returned error: 503\ncurl: (22) The requested URL returned error: 503\ncurl: (22) The requested URL returned error: 503\ncurl: (22) The requested URL returned error: 503\ncurl: (22) The requested URL returned error: 503\ncurl: (22)" + }, + { + "label": "s50-daemon-recovery-small", + "runtime": "node", + "entry": "/Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-24/dist/ccstatusline.js", + "sessions": 50, + "mode": "daemon-recovery", + "transcript": "small", + "transcript_bytes": 650195, + "count_pass": false, + "renders": 50, + "warmup_renders": 50, + "width_override": true, + "ccsl_fork": true, + "slow_config": false, + "cpu_user_s": 1.4176, + "cpu_sys_s": 1.493, + "cpu_total_s": 2.9105, + "cpu_per_render_ms": 58.211, + "cpu_s_per_wall_minute": 94.664, + "renders_per_wall_minute": 1626.2, + "wall_s": 1.845, + "peak_rss_kb": 148560, + "rss_sampling": { + "samples": 42, + "distinct_pids": 216, + "aggregate_mean_kb": 104335.2, + "aggregate_max_kb": 118736 + }, + "latency_ms": { + "n": 50, + "mean": 109.48, + "p50": 108.77, + "p95": 138.34, + "p99": 161.21 + }, + "output_hashes": [], + "distinct_output_hashes": 0, + "spawn_counts_measured": {}, + "spawn_counts_per_render": {}, + "first_stderr": "curl: (22) The requested URL returned error: 503\n", + "loadavg_start": 9.48, + "loadavg_end": 9.48, + "timestamp": "2026-09-30T10:57:23+0800", + "daemon": { + "counters": { + "requests": 52, + "ok": 52 + }, + "uptime_s": 1, + "last_render_ms": 1, + "active_renders": 0, + "startup_ms": 171.5 + }, + "recovery": { + "clients_failed_on_dead_daemon": 50, + "clients_that_still_succeeded": 0, + "failed_clients_stdout_empty": true, + "restart_ready_ms": 135.5, + "reverified": 50, + "output_mismatches": [] + }, + "shims": { + "shims": [], + "counts_measured": {} + } + } + ], + "comparisons": [ + { + "sessions": 1, + "workload": "small", + "phase": "cold", + "oneshot_label": "s1-cold-small", + "shared_label": "s1-shared-cold-small", + "oneshot_cpu_total_s": 0.1756, + "shared_cpu_total_s": 0.0254, + "oneshot_agg_rss_max_kb": 78192, + "shared_agg_rss_max_kb": 95728, + "oneshot_p95_ms": 168.76, + "shared_p95_ms": 54.79, + "output_hashes_equal": true, + "cpu_reduction_pct": 85.5 + }, + { + "sessions": 1, + "workload": "small", + "phase": "warm", + "oneshot_label": "s1-warm-small", + "shared_label": "s1-shared-warm-small", + "oneshot_cpu_total_s": 0.7083, + "shared_cpu_total_s": 0.1016, + "oneshot_agg_rss_max_kb": 76112, + "shared_agg_rss_max_kb": 101584, + "oneshot_p95_ms": 107.64, + "shared_p95_ms": 26.74, + "output_hashes_equal": true, + "cpu_reduction_pct": 85.7 + }, + { + "sessions": 10, + "workload": "small", + "phase": "cold", + "oneshot_label": "s10-cold-small", + "shared_label": "s10-shared-cold-small", + "oneshot_cpu_total_s": 1.7948, + "shared_cpu_total_s": 0.3061, + "oneshot_agg_rss_max_kb": 758688, + "shared_agg_rss_max_kb": 173104, + "oneshot_p95_ms": 315.93, + "shared_p95_ms": 129.49, + "output_hashes_equal": true, + "cpu_reduction_pct": 82.9 + }, + { + "sessions": 10, + "workload": "small", + "phase": "warm", + "oneshot_label": "s10-warm-small", + "shared_label": "s10-shared-warm-small", + "oneshot_cpu_total_s": 10.2056, + "shared_cpu_total_s": 1.6332, + "oneshot_agg_rss_max_kb": 722384, + "shared_agg_rss_max_kb": 183488, + "oneshot_p95_ms": 369.35, + "shared_p95_ms": 179.47, + "output_hashes_equal": true, + "cpu_reduction_pct": 84.0 + }, + { + "sessions": 36, + "workload": "small", + "phase": "cold", + "oneshot_label": "s36-cold-small", + "shared_label": "s36-shared-cold-small", + "oneshot_cpu_total_s": 6.6432, + "shared_cpu_total_s": 1.4178, + "oneshot_agg_rss_max_kb": 2565760, + "shared_agg_rss_max_kb": 304448, + "oneshot_p95_ms": 1103.96, + "shared_p95_ms": 335.71, + "output_hashes_equal": true, + "cpu_reduction_pct": 78.7 + }, + { + "sessions": 36, + "workload": "small", + "phase": "warm", + "oneshot_label": "s36-warm-small", + "shared_label": "s36-shared-warm-small", + "oneshot_cpu_total_s": 38.8789, + "shared_cpu_total_s": 7.5039, + "oneshot_agg_rss_max_kb": 2409280, + "shared_agg_rss_max_kb": 398064, + "oneshot_p95_ms": 1346.83, + "shared_p95_ms": 682.07, + "output_hashes_equal": true, + "cpu_reduction_pct": 80.7 + }, + { + "sessions": 50, + "workload": "small", + "phase": "cold", + "oneshot_label": "s50-cold-small", + "shared_label": "s50-shared-cold-small", + "oneshot_cpu_total_s": 9.1324, + "shared_cpu_total_s": 2.084, + "oneshot_agg_rss_max_kb": 2849776, + "shared_agg_rss_max_kb": 455504, + "oneshot_p95_ms": 1298.33, + "shared_p95_ms": 515.01, + "output_hashes_equal": true, + "cpu_reduction_pct": 77.2 + }, + { + "sessions": 50, + "workload": "small", + "phase": "warm", + "oneshot_label": "s50-warm-small", + "shared_label": "s50-shared-warm-small", + "oneshot_cpu_total_s": 53.6651, + "shared_cpu_total_s": 11.2553, + "oneshot_agg_rss_max_kb": 3546000, + "shared_agg_rss_max_kb": 568816, + "oneshot_p95_ms": 1486.33, + "shared_p95_ms": 784.97, + "output_hashes_equal": true, + "cpu_reduction_pct": 79.0 + }, + { + "sessions": 50, + "workload": "large", + "phase": "warm", + "oneshot_label": "s50-warm-large-large", + "shared_label": "s50-shared-warm-large-large", + "oneshot_cpu_total_s": 64.7237, + "shared_cpu_total_s": 14.0298, + "oneshot_agg_rss_max_kb": 4016640, + "shared_agg_rss_max_kb": 649488, + "oneshot_p95_ms": 1872.9, + "shared_p95_ms": 2272.7, + "output_hashes_equal": true, + "cpu_reduction_pct": 78.3 + }, + { + "sessions": 50, + "workload": "small", + "phase": "warm", + "oneshot_label": "s50-warm-small-slow", + "shared_label": "s50-shared-warm-small-slow", + "oneshot_cpu_total_s": 75.1512, + "shared_cpu_total_s": null, + "oneshot_agg_rss_max_kb": 5892144, + "shared_agg_rss_max_kb": null, + "oneshot_p95_ms": 2636.41, + "shared_p95_ms": null, + "output_hashes_equal": false, + "cpu_reduction_pct": null + } + ], + "gate": { + "scenario": "s36-warm-small (warmed 36-session workload)", + "target": ">=50% aggregate-CPU reduction, shared vs one-shot, daemon and clients included", + "oneshot_cpu_total_s": 38.8789, + "shared_cpu_total_s": 7.5039, + "reduction_pct": 80.7, + "passed": true + }, + "recovery": { + "label": "s50-daemon-recovery-small", + "runtime": "node", + "entry": "/Users/axisrow/.ao/data/worktrees/ccstatusline/ccstatusline-24/dist/ccstatusline.js", + "sessions": 50, + "mode": "daemon-recovery", + "transcript": "small", + "transcript_bytes": 650195, + "count_pass": false, + "renders": 50, + "warmup_renders": 50, + "width_override": true, + "ccsl_fork": true, + "slow_config": false, + "cpu_user_s": 1.4176, + "cpu_sys_s": 1.493, + "cpu_total_s": 2.9105, + "cpu_per_render_ms": 58.211, + "cpu_s_per_wall_minute": 94.664, + "renders_per_wall_minute": 1626.2, + "wall_s": 1.845, + "peak_rss_kb": 148560, + "rss_sampling": { + "samples": 42, + "distinct_pids": 216, + "aggregate_mean_kb": 104335.2, + "aggregate_max_kb": 118736 + }, + "latency_ms": { + "n": 50, + "mean": 109.48, + "p50": 108.77, + "p95": 138.34, + "p99": 161.21 + }, + "output_hashes": [], + "distinct_output_hashes": 0, + "spawn_counts_measured": {}, + "spawn_counts_per_render": {}, + "first_stderr": "curl: (22) The requested URL returned error: 503\n", + "loadavg_start": 9.48, + "loadavg_end": 9.48, + "timestamp": "2026-09-30T10:57:23+0800", + "daemon": { + "counters": { + "requests": 52, + "ok": 52 + }, + "uptime_s": 1, + "last_render_ms": 1, + "active_renders": 0, + "startup_ms": 171.5 + }, + "recovery": { + "clients_failed_on_dead_daemon": 50, + "clients_that_still_succeeded": 0, + "failed_clients_stdout_empty": true, + "restart_ready_ms": 135.5, + "reverified": 50, + "output_mismatches": [] + }, + "shims": { + "shims": [], + "counts_measured": {} + } + }, + "recovery_gate": { + "target": "every client fails clean (rc!=0, empty stdout) against the dead daemon; all sessions re-render byte-identically after restart", + "clients_that_still_succeeded": 0, + "failed_clients_stdout_empty": true, + "output_mismatches": [], + "passed": true + } +} \ No newline at end of file diff --git a/docs/daemon-19-verification.md b/docs/daemon-19-verification.md new file mode 100644 index 000000000..926a3d9cd --- /dev/null +++ b/docs/daemon-19-verification.md @@ -0,0 +1,90 @@ +# Daemon shared-mode acceptance run (issue #19) + +Machine-readable results: `docs/daemon-19-results.json` (full per-run JSON with +latency arrays); generated tables: `docs/daemon-19-bench.md`. One-shot baseline +reference: `docs/baseline-14-verification.md`. + +## What this is + +One-shot vs shared-mode (daemon) render cost at 1/10/36/50 concurrent sessions, +cold and warm, small/large transcripts, slow custom command, plus a recovery +proof. Shared-mode aggregate CPU covers the daemon **and every client** (sh + +curl, all reaped children, `getrusage(RUSAGE_CHILDREN)`); one-shot covers a +fresh process per render and its git children. Same fixtures and wave pattern +for both sides; output hash of every render recorded. + +## Acceptance gates (epic checklist) + +| Gate | Target | Measured | Result | +|---|---|---|---| +| Aggregate-CPU reduction, warmed 36-session workload, daemon + clients | ≥50% | 180.0 → 34.7 ms CPU/render = **80.7%** (38.88 → 7.50 CPU-s total) | **PASS** | +| Output equality one-shot vs shared | 1 distinct hash per scenario | hashes=1 in every passing scenario; comparison rows all `output_hashes_equal=true` | **PASS** | +| Recovery (SIGKILL, dead-daemon wave, restart) | fail clean, byte-identical re-render | 50/50 clients failed rc≠0 with empty stdout; restart ready; 0 output mismatches; recovery gate PASS | **PASS** | +| Opt-in with tested return to one-shot | both directions tested | `daemon-shared-mode.test.ts`: enable/disable round-trip, verbatim restore, idempotent enable, refusals (corrupt config, Windows) | **PASS** | + +Warm table (CPU ms/render; full p50/p95/p99 and RSS in the JSON): + +| scenario | one-shot | shared | reduction | +|---|---:|---:|---:| +| s1-warm-small | 118.1 | 16.9 | 85.7% | +| s10-warm-small | 170.1 | 27.2 | 84.0% | +| s36-warm-small (gate) | 180.0 | 34.7 | 80.7% | +| s50-warm-small | 178.9 | 37.5 | 79.0% | +| s50-warm-large | 215.7 | 46.8 | 78.3% | + +Aggregate RSS at 50 warm sessions: one-shot 2.8→3.5 GB (up to 5.7 GB in the +slow scenario) vs shared 0.35→0.56 GB; the daemon process stays ~0.4–0.6 GB +total while one-shot multiplies by session count. + +## Measured limitation: 50 synchronous sessions with a 0.4 s custom command + +`s50-shared-warm-small-slow` FAILED and is recorded as failed — twice, +reproducibly (initial run and a re-run). The daemon renders serially at +`MAX_IN_FLIGHT_RENDERS = 4`; a wave of 50 slow renders is a ~6–7 s queue, and +the client's bounded retry ladder (~8 s) does not guarantee a slot under that +contention, so some clients gave up with 503 busy. This is the designed +backpressure boundary, not a defect found by the gate: with the daemon down a +client fails with empty stdout, and a real Claude Code repaint simply tries +again on its next tick. The equivalent one-shot wave keeps all 50 sessions +rendering but costs 250 ms CPU/render and p95 2.6 s across up to 5.7 GB RSS. +Raising the retry budget until the scenario passes would have been tuning to +the benchmark, so the failure is reported as measured. Smaller slow waves and +all non-slow scenarios pass (10-session slow passes one-shot; the shared slow +pair at 50 sessions is the only failing row). + +## Method and honesty notes + +- Apple M5 (10 cores), macOS 26, `node dist/ccstatusline.js`, `CCSL_FORK=1`, + `CCSTATUSLINE_WIDTH=120`, fresh HOME per scenario, one shared dirty git repo, + per-session transcripts and session ids (no dedup collisions). +- Load gate `--max-load 14` with loadavg stamped per scenario; the machine was + NOT idle (sibling agent sessions; ambient 1-min loadavg oscillated ~4–15). + CPU and RSS are the stable metrics; latency percentiles under ambient load + are upper bounds (shared p99 at 50 sessions grows with the busy-retry + ladder by design). +- Busy retries are visible in daemon counters (`busy` vs `ok`); they are part + of the shared cost and are included in the aggregate CPU. +- The `s50-warm-small-slow` one-shot row showed `hashes=2` in one earlier run + (1 in the final run): the slow-command line is otherwise deterministic, so + this is recorded rather than explained away. +- Idle-timer refreshes are not modeled as a separate phase; warm runs measure + steady back-to-back waves and the daemon idle sweep runs only after 5 quiet + minutes. +- Aggregate RSS is `ps`-sampled and undercounts short-lived children; peak RSS + is exact (`ru_maxrss`). + +## Verification summary + +- Harness: `python3 scripts/benchmark-render.py --self-test` → PASS. +- Live CLI verification (isolated fake `CLAUDE_CONFIG_DIR`/`XDG_CONFIG_HOME`, + real dist build): 19/19 — a piped render starts no daemon; `daemon install` + switches the statusLine, remembers the previous command and starts the + daemon; `daemon status` reports identity/uptime/counters and leaks no + token; the wrapper renders through the daemon; after `daemon stop` the + wrapper fails clean (rc=1, empty stdout, no auto-start); `daemon uninstall` + restores the one-shot command verbatim and stays off; a second uninstall is + an honest no-op. +- Final run: 21 scenarios, 20 passed, 1 failed as documented above (the run + exits 1 — the failure is kept visible in the JSON/MD, not masked). +- `bun test`: 2732 passed / 0 failed (single full run at the end). +- `bun run lint`: clean (`tsc --noEmit` + ESLint `--max-warnings=0`). diff --git a/package.json b/package.json index a7a3d10f9..f7a29995b 100644 --- a/package.json +++ b/package.json @@ -19,7 +19,8 @@ "./package.json": "./package.json" }, "files": [ - "dist/" + "dist/", + "client/" ], "scripts": { "start": "bun run src/ccstatusline.ts", diff --git a/scripts/benchmark-render.py b/scripts/benchmark-render.py index 0dfe9ef4a..a0ea926e8 100644 --- a/scripts/benchmark-render.py +++ b/scripts/benchmark-render.py @@ -72,6 +72,89 @@ def worker(i): return [once(i) for _ in range(rounds)] COUNT_WARMUP_RENDERS, COUNT_MEASURED = 1, 2 SHIM_BINS = {'git': '/usr/bin/git', 'security': '/usr/bin/security'} LOAD_CHECK_INTERVAL_S = 10 +CLIENT_SCRIPT = pathlib.Path(__file__).resolve().parent.parent / 'client' / 'ccstatusline-ipc' +SHARED_MODES = ('shared-cold', 'shared-warm', 'daemon-recovery') + +# Slow-command scenario config: one custom-command widget sleeping 400ms per +# render (default timeout 1000ms applies). Written into the run HOME when +# --slow-config is passed; exercises per-render subprocess work beyond git. +SLOW_SETTINGS = { + 'version': 4, + 'lines': [[{'id': 'slow-cmd', 'type': 'custom-command', 'commandPath': 'sleep 0.4; echo slow-render'}]], + 'customCommandCacheTtlSeconds': 0, +} + + +def write_slow_config(home): + config_dir = home / '.config' / 'ccstatusline' + config_dir.mkdir(parents=True, exist_ok=True) + (config_dir / 'settings.json').write_text(json.dumps(SLOW_SETTINGS)) + + +def read_discovery(discovery_path): + try: + text = discovery_path.read_text() + except OSError: + return None + info = {} + for line in text.splitlines(): + if line.startswith('#') or '=' not in line: + continue + key, _, value = line.partition('=') + info[key] = value + if info.get('socket') and info.get('token'): + return info + return None + + +def daemon_health(info): + try: + out = subprocess.run(['curl', '-q', '-sS', '--fail', '--noproxy', '*', '--max-time', '5', + '--unix-socket', info['socket'], + '-H', 'Authorization: Bearer %s' % info['token'], + 'http://localhost/v1/health'], capture_output=True, text=True) + except subprocess.SubprocessError: + return None + if out.returncode: + return None + try: + return json.loads(out.stdout) + except ValueError: + return None + + +def start_bench_daemon(runtime, entry, env, runtime_dir): + # The daemon is a direct child of this scenario interpreter: reaping it at + # the end folds its CPU into getrusage(RUSAGE_CHILDREN), so the aggregate + # covers daemon + all client (sh+curl) processes. + runtime_dir.mkdir(parents=True, exist_ok=True) + daemon_env = dict(env, CCSTATUSLINE_RUNTIME_DIR=str(runtime_dir)) + started = time.perf_counter() + proc = subprocess.Popen([runtime, entry, 'daemon'], env=daemon_env, + stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL) + discovery = runtime_dir / 'daemon.env' + deadline = time.time() + 15 + while time.time() < deadline: + if proc.poll() is not None: + raise RuntimeError('daemon exited during startup (rc=%s)' % proc.returncode) + info = read_discovery(discovery) + if info: + health = daemon_health(info) + if health: + return proc, info, health, (time.perf_counter() - started) * 1000 + time.sleep(0.05) + proc.terminate() + proc.wait() + raise RuntimeError('daemon not ready within 15s') + + +def stop_bench_daemon(proc): + proc.terminate() + try: + proc.wait(timeout=10) + except subprocess.TimeoutExpired: + proc.kill() + proc.wait() def machine_context(): try: @@ -187,6 +270,7 @@ def descendants(root_pid): print(json.dumps(result), flush=True) def cmd_run_one(args): + shared = args.mode in SHARED_MODES label = 's%d-%s-%s%s%s' % (args.sessions, args.mode, args.transcript, '-counts' if args.count_pass else '', args.run_suffix) run_dir = ROOT / 'runs' / label if run_dir.exists(): @@ -210,32 +294,76 @@ def cmd_run_one(args): # reality. Fresh HOME per run isolates cold from any earlier run's caches. env = environment(home, width=True) env['CCSL_FORK'] = '1' + if args.slow_config: + write_slow_config(home) shim_info = {'shims': [], 'counts_measured': {}} shims = [] - if args.count_pass: + if args.count_pass and not shared: shim_dir, shims = make_shims(run_dir) env['PATH'] = str(shim_dir) + os.pathsep + env['PATH'] shim_info['shims'] = [name for name, _ in shims] entry = str(pathlib.Path(args.entry).resolve()) - warmups = 0 if args.mode == 'cold' else (COUNT_WARMUP_RENDERS if args.count_pass else WARMUP_RENDERS) - measured = 1 if args.mode == 'cold' else (COUNT_MEASURED if args.count_pass else WARM_MEASURED) + if args.mode == 'cold' or args.mode == 'shared-cold': + warmups, measured = 0, 1 + elif args.mode == 'daemon-recovery': + warmups, measured = 1, 1 + elif args.count_pass: + warmups, measured = COUNT_WARMUP_RENDERS, COUNT_MEASURED + else: + warmups, measured = WARMUP_RENDERS, WARM_MEASURED first_stderr = '' - def once(i): + # Short path on purpose: the daemon socket must fit sun_path (103 bytes on + # macOS), and the run dir under the system temp dir can be deep. + runtime_dir = pathlib.Path('/tmp') / ('ccsl-dbench-%d' % os.getpid()) + if runtime_dir.exists(): + shutil.rmtree(runtime_dir) + client_env = dict(env, CCSTATUSLINE_RUNTIME_DIR=str(runtime_dir)) + client_argv = ['/bin/sh', str(CLIENT_SCRIPT)] + daemon = None + daemon_info = None + + def start_daemon_now(): + nonlocal daemon, daemon_info + daemon, daemon_info, health, startup_ms = start_bench_daemon(args.runtime, entry, env, runtime_dir) + return health, startup_ms + + # Renders go either through a fresh one-shot process or through the shell + # IPC client against the run's daemon. Returns (session, elapsed_ms, hash, + # rc); rc != 0 means the client produced no status line (stdout empty). + def once(i, allow_fail=False): nonlocal first_stderr start = time.perf_counter() - p = subprocess.run([args.runtime, entry], input=payloads[i], text=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, cwd=repo, env=env, timeout=60) + if shared: + p = subprocess.run(client_argv, input=payloads[i], text=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, cwd=repo, env=client_env, timeout=60) + else: + p = subprocess.run([args.runtime, entry], input=payloads[i], text=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, cwd=repo, env=env, timeout=60) elapsed = (time.perf_counter() - start) * 1000 - if p.returncode: + if p.returncode and not allow_fail: raise RuntimeError('render failed rc=%s stderr=%s' % (p.returncode, p.stderr[:500])) if p.stderr and not first_stderr: first_stderr = p.stderr[:500] - return elapsed, hashlib.sha256(p.stdout.encode()).hexdigest() - def wave(n): - def worker(i): return [once(i) for _ in range(n)] + return i, elapsed, hashlib.sha256(p.stdout.encode()).hexdigest(), p.returncode + + def wave(n, allow_fail=False): + def worker(i): + return [once(i, allow_fail) for _ in range(n)] with concurrent.futures.ThreadPoolExecutor(max_workers=args.sessions) as pool: return sum(pool.map(worker, range(args.sessions)), []) + + daemon_startup_ms = None + if shared and args.mode != 'shared-cold': + _, daemon_startup_ms = start_daemon_now() for _ in range(warmups): wave(1) + warmup_hashes = {} + + if args.mode == 'daemon-recovery': + # Warm-wave hashes are the expected output; the kill must not change + # any rendered line after recovery. + for i, _elapsed, digest, rc in wave(1): + if rc == 0: + warmup_hashes.setdefault(i, digest) + counts_before = {name: read_count(f) for name, f in shims} if args.count_pass else {} if args.max_load is not None: # Re-check inside the runner: the orchestrator gate ran seconds ago; @@ -244,9 +372,50 @@ def worker(i): return [once(i) for _ in range(n)] la_start = loadavg1() rbefore = resource.getrusage(resource.RUSAGE_CHILDREN) sampler = subprocess.Popen([sys.executable, __file__, '_sampler', '--target-pid', str(os.getpid()), '--interval-ms', str(args.interval_ms)], stdout=subprocess.PIPE, text=True) + recovery = {} start = time.perf_counter() - samples = wave(measured) - wall = time.perf_counter() - start + if args.mode == 'daemon-recovery': + # Deterministic recovery proof: kill the daemon (SIGKILL, no cleanup), + # then a full wave hits the dead daemon — every client must fail with + # rc!=0 and EMPTY stdout (a partial line must never become a status + # line). Restart, re-render every session, require byte-identical + # output to the warm wave. + assert daemon is not None + daemon.kill() + killed_at = time.perf_counter() + daemon.wait() # reap the killed daemon so its CPU stays in the run + dead_samples = wave(1, allow_fail=True) + survived = [s for s in dead_samples if s[3] == 0] + failed = sorted({i for (i, _e, _h, rc) in dead_samples if rc != 0}) + empty_stdout = all(s[2] == hashlib.sha256(b'').hexdigest() for s in dead_samples if s[3] != 0) + restart_started = time.perf_counter() + _health, _ms = start_daemon_now() + ready_at = time.perf_counter() + reverified = {} + for i in failed: + _i, _e, digest, rc = once(i) + if rc != 0: + raise RuntimeError('recovery re-render failed for session %d' % i) + reverified[i] = digest + mismatched = [i for i, digest in reverified.items() if warmup_hashes.get(i) not in (None, digest)] + recovery = { + 'clients_failed_on_dead_daemon': len(failed), + 'clients_that_still_succeeded': len(survived), + 'failed_clients_stdout_empty': empty_stdout, + 'restart_ready_ms': round((ready_at - restart_started) * 1000, 1), + 'reverified': len(reverified), + 'output_mismatches': mismatched, + } + samples = dead_samples + wall = time.perf_counter() - start + else: + if args.mode == 'shared-cold': + # Cold start: the measured wave includes booting the daemon from + # nothing (no process, cold caches), like the first repaints after + # a manual `daemon start`. + _health, daemon_startup_ms = start_daemon_now() + samples = wave(measured) + wall = time.perf_counter() - start la_end = loadavg1() rafter = resource.getrusage(resource.RUSAGE_CHILDREN) sampler.terminate() @@ -255,7 +424,24 @@ def worker(i): return [once(i) for _ in range(n)] except Exception: rss = {'samples': 0} counts_after = {name: read_count(f) for name, f in shims} if args.count_pass else {} - latencies = sorted(s[0] for s in samples) + if daemon is not None: + # Health snapshot after the measured phase: aggregate counters + # (dedup joins, failures), last render time, in-flight renders. + health = daemon_health(daemon_info) if daemon_info else None + daemon_snapshot = None + if health: + daemon_snapshot = { + 'counters': health.get('counters'), + 'uptime_s': health.get('uptimeSeconds'), + 'last_render_ms': health.get('lastRenderMs'), + 'active_renders': health.get('activeRenders'), + 'startup_ms': round(daemon_startup_ms, 1) if daemon_startup_ms is not None else None, + } + stop_bench_daemon(daemon) # reap: CPU folds into RUSAGE_CHILDREN + shutil.rmtree(runtime_dir, ignore_errors=True) + else: + daemon_snapshot = None + latencies = sorted(s[1] for s in samples) cpu_user = rafter.ru_utime - rbefore.ru_utime cpu_sys = rafter.ru_stime - rbefore.ru_stime cpu_total = cpu_user + cpu_sys @@ -265,6 +451,7 @@ def worker(i): return [once(i) for _ in range(n)] 'transcript_bytes': fixture.stat().st_size, 'count_pass': args.count_pass, 'renders': len(samples), 'warmup_renders': warmups * args.sessions, 'width_override': True, 'ccsl_fork': True, + 'slow_config': args.slow_config, 'cpu_user_s': round(cpu_user, 4), 'cpu_sys_s': round(cpu_sys, 4), 'cpu_total_s': round(cpu_total, 4), 'cpu_per_render_ms': round(cpu_total * 1000 / len(samples), 3), 'cpu_s_per_wall_minute': round(cpu_total / wall * 60, 3), @@ -276,13 +463,17 @@ def worker(i): return [once(i) for _ in range(n)] 'rss_sampling': rss, 'latency_ms': {'n': len(latencies), 'mean': round(statistics.mean(latencies), 2), 'p50': round(pctl(latencies, 0.5), 2), 'p95': round(pctl(latencies, 0.95), 2), 'p99': round(pctl(latencies, 0.99), 2)}, 'latencies_ms': latencies, - 'distinct_output_hashes': len(set(s[1] for s in samples)), + 'output_hashes': sorted(set(s[2] for s in samples if s[3] == 0)), + 'distinct_output_hashes': len(set(s[2] for s in samples if s[3] == 0)), 'spawn_counts_measured': {name: counts_after.get(name, 0) - counts_before.get(name, 0) for name in counts_after}, 'spawn_counts_per_render': {name: round((counts_after.get(name, 0) - counts_before.get(name, 0)) / len(samples), 2) for name in counts_after}, 'first_stderr': first_stderr, 'loadavg_start': la_start, 'loadavg_end': la_end, 'timestamp': time.strftime('%Y-%m-%dT%H:%M:%S%z'), } + if shared: + result['daemon'] = daemon_snapshot + result['recovery'] = recovery or None shim_info['counts_measured'] = result['spawn_counts_measured'] result['shims'] = shim_info (ROOT / 'results' / f'{label}.json').write_text(json.dumps(result, indent=2)) @@ -299,7 +490,7 @@ def wait_for_load(max_load, deadline_s): print('[baseline] loadavg %.1f > %.1f, waiting %ds...' % (la, max_load, LOAD_CHECK_INTERVAL_S), flush=True) time.sleep(LOAD_CHECK_INTERVAL_S) -def run_scenario(env, args, sessions, mode, transcript, count_pass, suffix): +def run_scenario(env, args, sessions, mode, transcript, count_pass, suffix, slow=False, tag='daemon-bench'): label = 's%d-%s-%s%s%s' % (sessions, mode, transcript, '-counts' if count_pass else '', suffix) cmd = [sys.executable, str(pathlib.Path(__file__).resolve()), 'run-one', '--runtime', args.runtime, '--entry', args.entry, @@ -307,6 +498,8 @@ def run_scenario(env, args, sessions, mode, transcript, count_pass, suffix): '--interval-ms', str(args.interval_ms)] if count_pass: cmd.append('--count-pass') + if slow: + cmd.append('--slow-config') if suffix: cmd.append('--run-suffix=%s' % suffix) if args.max_load is not None: @@ -315,14 +508,216 @@ def run_scenario(env, args, sessions, mode, transcript, count_pass, suffix): if proc.returncode: raise RuntimeError(proc.stderr.strip()[-800:]) result = json.loads(proc.stdout.strip().splitlines()[-1]) - print('[baseline] %-18s cpu/render=%sms cpu/wallmin=%ss peakRSS=%sMB aggRSS=%sMB p95=%sms%s' % ( - label, result['cpu_per_render_ms'], result['cpu_s_per_wall_minute'], + print('[%s] %-26s cpu/render=%sms cpu/wallmin=%ss peakRSS=%sMB aggRSS=%sMB p50=%sms p95=%sms p99=%sms hashes=%s%s' % ( + tag, label, result['cpu_per_render_ms'], result['cpu_s_per_wall_minute'], round(result['peak_rss_kb'] / 1024, 1), '%s→%s' % (round(result['rss_sampling'].get('aggregate_mean_kb', 0) / 1024, 1), round(result['rss_sampling'].get('aggregate_max_kb', 0) / 1024, 1)), - result['latency_ms']['p95'], - (' git/render=%s' % result['spawn_counts_per_render'].get('git')) if result['spawn_counts_per_render'] else ''), flush=True) + result['latency_ms']['p50'], result['latency_ms']['p95'], result['latency_ms']['p99'], + result.get('distinct_output_hashes'), + (' daemon=%s' % result['daemon']['counters']) if result.get('daemon') and result['daemon'].get('counters') else ''), flush=True) return result + +def cpu_reduction_pct(oneshot, shared): + if not oneshot or not shared or oneshot.get('error') or shared.get('error'): + return None + base = oneshot['cpu_total_s'] + if base <= 0: + return None + return round((base - shared['cpu_total_s']) / base * 100, 1) + + +def cmd_daemon_bench(args): + # One-shot vs shared-mode comparison for the daemon epic (#19): same + # fixtures, same wave pattern; the shared run's aggregate CPU covers the + # daemon plus every client (sh+curl) because both are reaped children of + # the scenario interpreter. + out_dir = pathlib.Path(args.out).resolve() + out_dir.mkdir(parents=True, exist_ok=True) + fixture_root = out_dir / 'fixture-root' + fixture_root.mkdir(parents=True, exist_ok=True) + env = os.environ.copy() + env['CCSTATUSLINE_BENCH_DIR'] = str(fixture_root) + max_load = args.max_load if args.max_load is not None else (os.cpu_count() or 4) / 2 + sessions = [int(s) for s in args.sessions.split(',')] + big = max(sessions) + la_start = wait_for_load(max_load, args.load_wait_sec) + + plan = [] # (kind, sessions, mode, transcript, suffix) + for n in sessions: + plan += [ + ('one-shot', n, 'cold', 'small', ''), + ('one-shot', n, 'warm', 'small', ''), + ('shared', n, 'shared-cold', 'small', ''), + ('shared', n, 'shared-warm', 'small', ''), + ] + plan += [ + ('one-shot', big, 'warm', 'large', '-large'), + ('shared', big, 'shared-warm', 'large', '-large'), + ('one-shot', big, 'warm', 'small', '-slow'), + ('shared', big, 'shared-warm', 'small', '-slow'), + ('recovery', big, 'daemon-recovery', 'small', ''), + ] + + runs = [] + for kind, n, mode, transcript, suffix in plan: + try: + wait_for_load(max_load, args.load_wait_sec) + if kind == 'recovery': + runs.append(run_scenario(env, args, n, mode, transcript, False, suffix)) + else: + slow = suffix == '-slow' + runs.append(run_scenario(env, args, n, mode, transcript, False, suffix, slow=slow)) + except Exception as e: + print('[daemon-bench] FAILED s%d-%s-%s%s: %s' % (n, mode, transcript, suffix, e), flush=True) + runs.append({'label': 's%d-%s-%s%s' % (n, mode, transcript, suffix), 'mode': mode, 'kind': kind, 'error': str(e)}) + + def find(label): + for r in runs: + if r['label'] == label: + return r + return None + + # Pairwise comparison: output equality and aggregate CPU. + pair_specs = [] + for n in sessions: + pair_specs += [(n, 'cold', 'small', ''), (n, 'warm', 'small', '')] + pair_specs += [(big, 'warm', 'large', '-large'), (big, 'warm', 'small', '-slow')] + comparisons = [] + for n, phase, transcript, suffix in pair_specs: + one = find('s%d-%s-%s%s' % (n, phase, transcript, suffix)) + shared = find('s%d-shared-%s-%s%s' % (n, phase, transcript, suffix)) + comparisons.append({ + 'sessions': n, 'workload': transcript, 'phase': phase, + 'oneshot_label': one and one.get('label'), 'shared_label': shared and shared.get('label'), + 'oneshot_cpu_total_s': one and one.get('cpu_total_s'), 'shared_cpu_total_s': shared and shared.get('cpu_total_s'), + 'oneshot_agg_rss_max_kb': one and one.get('rss_sampling', {}).get('aggregate_max_kb'), + 'shared_agg_rss_max_kb': shared and shared.get('rss_sampling', {}).get('aggregate_max_kb'), + 'oneshot_p95_ms': one and one.get('latency_ms', {}).get('p95'), + 'shared_p95_ms': shared and shared.get('latency_ms', {}).get('p95'), + 'output_hashes_equal': (one is not None and shared is not None and not one.get('error') and not shared.get('error') + and sorted(one.get('output_hashes', [])) == sorted(shared.get('output_hashes', []))), + 'cpu_reduction_pct': cpu_reduction_pct(one, shared), + }) + # The epic's gate is defined on the warmed 36-session workload; fall back + # to the largest configured session count only when 36 was not measured. + gate_n = 36 if 36 in sessions else big + gate_one = find('s%d-warm-small' % gate_n) + gate_shared = find('s%d-shared-warm-small' % gate_n) + gate = { + 'scenario': 's%d-warm-small (warmed %d-session workload)' % (gate_n, gate_n), + 'target': '>=50% aggregate-CPU reduction, shared vs one-shot, daemon and clients included', + 'oneshot_cpu_total_s': gate_one and gate_one.get('cpu_total_s'), + 'shared_cpu_total_s': gate_shared and gate_shared.get('cpu_total_s'), + 'reduction_pct': cpu_reduction_pct(gate_one, gate_shared), + 'passed': (cpu_reduction_pct(gate_one, gate_shared) or -999) >= 50, + } + recovery = find('s%d-daemon-recovery-small' % big) + # The recovery scenario is a proof, not telemetry: its invariants gate the + # run like any other acceptance check. clients_that_still_succeeded > 0 or + # a non-empty stdout on the dead-daemon wave means the isolation contract + # is broken; any output mismatch after restart means rendering changed. + recovery_gate = { + 'target': 'every client fails clean (rc!=0, empty stdout) against the dead daemon; all sessions re-render byte-identically after restart', + 'clients_that_still_succeeded': recovery.get('recovery', {}).get('clients_that_still_succeeded') if recovery else None, + 'failed_clients_stdout_empty': recovery.get('recovery', {}).get('failed_clients_stdout_empty') if recovery else None, + 'output_mismatches': recovery.get('recovery', {}).get('output_mismatches') if recovery else None, + } + recovery_gate['passed'] = bool( + recovery and not recovery.get('error') + and recovery_gate['clients_that_still_succeeded'] == 0 + and recovery_gate['failed_clients_stdout_empty'] is True + and recovery_gate['output_mismatches'] == [] + ) + + meta = { + 'runtime': args.runtime, 'entry': str(pathlib.Path(args.entry).resolve()), 'ccsl_fork': True, + 'machine': machine_context(), 'generated': time.strftime('%Y-%m-%dT%H:%M:%S%z'), + 'loadavg_start': la_start, 'loadavg_end': loadavg1(), 'max_load_gate': max_load, + 'notes': [ + 'Measured numbers only; no extrapolation.', + 'Shared-mode aggregate CPU covers the daemon AND every client process (sh + curl): both are reaped children of the scenario interpreter, accounted via getrusage(RUSAGE_CHILDREN).', + 'Cold shared mode includes booting the daemon (no process, cold caches) inside the measured window.', + 'Idle-timer refreshes are not modeled as a separate phase; warm runs measure steady back-to-back repaint waves, and the daemon idle sweep runs only after 5 quiet minutes.', + 'Slow-command scenario: one custom-command widget sleeping 400ms per render, cache TTL 0.', + 'Recovery scenario: SIGKILL of the daemon (no cleanup), a full client wave against the dead daemon must fail with rc!=0 and empty stdout (never a partial line), then the daemon is restarted and every session re-rendered with byte-identical output.', + 'Aggregate RSS is sampled via ps over live process trees (~%sms cadence); short-lived children can be missed, so it undercounts.' % args.interval_ms, + 'Runs were rejected/waited while system loadavg1 exceeded %s (gate recorded above); concurrent sibling sessions still add noise.' % max_load, + ], + } + doc = {'meta': meta, 'runs': runs, 'comparisons': comparisons, 'gate': gate, 'recovery': recovery, 'recovery_gate': recovery_gate} + (out_dir / 'daemon-bench.json').write_text(json.dumps(doc, indent=2)) + write_daemon_summary(out_dir, doc) + failed = sum(1 for r in runs if r.get('error')) + (0 if recovery_gate['passed'] else 1) + print('[daemon-bench] recovery gate: passed=%s (still_succeeded=%s, stdout_empty=%s, mismatches=%s)' % ( + recovery_gate['passed'], recovery_gate['clients_that_still_succeeded'], + recovery_gate['failed_clients_stdout_empty'], recovery_gate['output_mismatches']), flush=True) + print('[daemon-bench] done: %d runs, %d failed. Gate (%s): %s%% reduction, passed=%s. Results: %s/daemon-bench.json, %s/DAEMON-BENCH.md' % ( + len(runs), failed, gate['scenario'], gate['reduction_pct'], gate['passed'], out_dir, out_dir), flush=True) + return 1 if failed or not gate['passed'] else 0 + + +def write_daemon_summary(out_dir, doc): + meta, comparisons, gate, recovery = doc['meta'], doc['comparisons'], doc['gate'], doc['recovery'] + lines = ['# ccstatusline daemon vs one-shot (issue #19)', '', + 'One-shot vs shared-mode (daemon) aggregate cost. Shared numbers cover the', + 'daemon plus every client process; one-shot covers the fresh process per', + 'render and its children (git etc.).', '', + '- runtime: `%s %s`' % (meta['runtime'], meta['entry']), + '- machine: %s, %s cores, %s' % (meta['machine']['cpu_model'], meta['machine']['cpu_count'], meta['machine']['os']), + '- generated: %s, loadavg before/after: %s/%s' % (meta['generated'], meta['loadavg_start'], meta['loadavg_end']), ''] + + lines.append('## Per-scenario aggregate cost') + lines.append('') + lines.append('| scenario | renders | CPU s total | CPU s/render | CPU s/wall-min | agg RSS MB mean→max | p50 ms | p95 ms | p99 ms | distinct hashes |') + lines.append('|---|---|---|---|---|---|---|---|---|---|') + for r in doc['runs']: + if r.get('error'): + lines.append('| %s | FAILED | %s |' % (r['label'], r['error'][:120].replace('\n', ' ').replace('|', '\\|'))) + continue + lat = r['latency_ms'] + lines.append('| %s | %d | %s | %s | %s | %s→%s | %s | %s | %s | %s |' % ( + r['label'], r['renders'], r['cpu_total_s'], r['cpu_per_render_ms'], r['cpu_s_per_wall_minute'], + fmt_mb(r['rss_sampling'].get('aggregate_mean_kb', 0)), fmt_mb(r['rss_sampling'].get('aggregate_max_kb', 0)), + lat['p50'], lat['p95'], lat['p99'], r.get('distinct_output_hashes'))) + lines.append('') + + lines.append('## One-shot vs shared comparison') + lines.append('') + lines.append('| sessions | workload | phase | one-shot CPU s | shared CPU s | reduction | hashes equal |') + lines.append('|---|---|---|---|---|---|---|') + for c in comparisons: + lines.append('| %s | %s | %s | %s | %s | %s%% | %s |' % ( + c['sessions'], c['workload'], c['phase'], c['oneshot_cpu_total_s'], c['shared_cpu_total_s'], + c['cpu_reduction_pct'], c['output_hashes_equal'])) + lines.append('') + + lines.append('## Acceptance gate') + lines.append('') + lines.append('- scenario: %s' % gate['scenario']) + lines.append('- target: %s' % gate['target']) + lines.append('- measured: one-shot %s s CPU, shared %s s CPU → %s%% reduction' % (gate['oneshot_cpu_total_s'], gate['shared_cpu_total_s'], gate['reduction_pct'])) + lines.append('- result: %s (measured, not assumed)' % ('PASS' if gate['passed'] else 'FAIL')) + lines.append('') + + if recovery: + rec = recovery.get('recovery') or {} + lines.append('## Recovery (SIGKILL, dead-daemon wave, restart)') + lines.append('') + lines.append('- clients that failed on the dead daemon with rc!=0: %s of %s' % (rec.get('clients_failed_on_dead_daemon'), recovery.get('sessions'))) + lines.append('- clients that still succeeded (should be 0): %s' % rec.get('clients_that_still_succeeded')) + lines.append('- failed clients left stdout empty (no partial status line): %s' % rec.get('failed_clients_stdout_empty')) + lines.append('- daemon restart to ready: %s ms' % rec.get('restart_ready_ms')) + lines.append('- sessions re-rendered after restart: %s, output mismatches vs warm wave: %s' % (rec.get('reverified'), rec.get('output_mismatches'))) + lines.append('- gate: %s (violations fail the whole run)' % ('PASS' if doc.get('recovery_gate', {}).get('passed') else 'FAIL')) + lines.append('') + + lines.append('## Notes and honesty') + lines.append('') + for note in meta['notes']: + lines.append('- %s' % note) + (out_dir / 'DAEMON-BENCH.md').write_text('\n'.join(lines) + '\n') + def fmt_mb(kb): return round(kb / 1024, 1) @@ -481,14 +876,26 @@ def main(): p.add_argument('--interval-ms', type=int, default=25) args = p.parse_args(sys.argv[2:]) sys.exit(cmd_baseline(args)) + if len(sys.argv) > 1 and sys.argv[1] == 'daemon-bench': + p = argparse.ArgumentParser(prog='benchmark-render.py daemon-bench') + p.add_argument('--runtime', required=True) + p.add_argument('--entry', required=True) + p.add_argument('--out', required=True) + p.add_argument('--sessions', default='1,10,36,50') + p.add_argument('--max-load', type=float, default=None, help='loadavg1 gate, default cpu_count/2') + p.add_argument('--load-wait-sec', type=int, default=1800) + p.add_argument('--interval-ms', type=int, default=25) + args = p.parse_args(sys.argv[2:]) + sys.exit(cmd_daemon_bench(args)) if len(sys.argv) > 1 and sys.argv[1] == 'run-one': p = argparse.ArgumentParser(prog='benchmark-render.py run-one') p.add_argument('--runtime', required=True) p.add_argument('--entry', required=True) p.add_argument('--sessions', type=int, required=True) - p.add_argument('--mode', choices=['cold', 'warm'], required=True) + p.add_argument('--mode', choices=['cold', 'warm', 'shared-cold', 'shared-warm', 'daemon-recovery'], required=True) p.add_argument('--transcript', choices=sorted(FIXTURE_ROWS), required=True) p.add_argument('--count-pass', action='store_true') + p.add_argument('--slow-config', action='store_true') p.add_argument('--run-suffix', default='') p.add_argument('--interval-ms', type=int, default=25) p.add_argument('--max-load', type=float, default=None) @@ -509,6 +916,7 @@ def main(): return print('usage: benchmark-render.py