metrics.csv — locked Phase 1 cells

Locked binding cells for the campaign. Raw CSV attachment: metrics.csv (inlined).

Inherits the success-criteria shape from ohm_gl_fix Phase 1r (drops_post_warmup, drops sanity cap) plus a new cell kwin_wayland_cpu_steady_state that locks the intent that the fix must move work, not hide it.

• phase — phase0_handover | phase1_baseline_kwin | phase1_reference_cage | phase1_goal_target | phase1_goal_actual | phase3_perf_kwin | phase3_perf_cage
• path_label — descriptive playback configuration
• clip — source media file (sha16: dcf8a7170fbd49bb for bbb_1080p30_h264.mp4)
• compositor — kwin | cage_nested | cage_drm
• surface_protocol — zwp_linux_dmabuf_v1_subsurface | single_fullscreen_surface | direct_drm_scanout
• drops — total dropped frames over window_s
• frames_total — total frames considered (delivered + dropped)
• drop_pct — 100 * drops / frames_total
• window_s — full measurement window
• warmup_s — duration tolerated as warmup
• drops_post_warmup — drops in (warmup_s, window_s] — binding for C1
• effective_fps — delivered frames per second
• kwin_wayland_cpu — steady-state %CPU of kwin_wayland during t > 30 s
• route_engaged — Y/N — wp_subsurface protocol still in use (binding for C4)
• role — metric = success criterion; reference = control floor; metric_actual = measured-against-locked-metric; handover = imported context, not own measurement
• source — where this row's number came from
• date — ISO date the number was taken

• C1: drops_post_warmup == 0 over 60 s (warmup_s = 10)
• C2: drops_total ⇐ 10 over 70 s (sanity cap)
• C3: kwin_wayland_cpu ⇐ cage_baseline + 5pp absolute
• C4: route_engaged == Y (no “treat-as-regular-surface” cheat)

All four must hold for Phase 7 verification.

Full row schema (window_s, warmup_s, effective_fps, source, date) lives in the raw CSV attachment (inlined).

• phase0_handover_kwin — ohm_gl_fix:phase3_remeasure_2026-05-02/A2_brave_drops_findings.md, 2026-05-02.
• phase0_handover_cage — ohm_gl_fix:phase3_remeasure_2026-05-02/task25_cage_vs_kwin_decisive.md, 2026-05-02.
• phase1_goal_target — phase1_lock, 2026-05-02.
• phase3_perf_kwin — phase3_findings (drops trajectory not captured; see phase3_evidence/kwin_direct_rep1/), 2026-05-02.
• phase3_perf_cage — phase3_findings (kwin_wayland_cpu measured on KWin under cage; cage process perf also captured at ~7 %; drops trajectory not captured), 2026-05-02.
• phase3_perf_brave_kwin — phase3_findings C3 + phase3_evidence/brave_stock_kwin_rep1/drops_trajectory_typed.txt, 2026-05-02.