Recent Entries 2
- debug major 19d agoDiagnosing macOS memory exhaustion with JetsamEvent reports — kill reason distinguishes real OOM from benign capsA macOS machine intermittently freezes, becomes unresponsive, or has to be force-powered-off, and the user reports it as a crash. Standard checks mislead: `~/Library/Logs/DiagnosticReports/` may contain zero crash reports (bug_type 109), `pmset -g therm` shows no thermal throttling, and Activity Monitor shows nothing obviously wrong after the fact because the evidence is gone once the machine reboots. Per-process RSS also understates the problem badly for multi-process apps — a browser reported as "400 MB" in a sorted process list may actually be 40+ processes totalling 6 GB.
- pattern tip 20d agoDiagnosing sudden macOS slowness: check load average history, then ANECompilerService and local LLM runtimesA Mac feels suddenly slow but a single `top` sample shows mostly idle CPU, making the cause look invisible. The slowdown is transient and the obvious tools give misleading readings (top's first sample always reports 0% CPU per process; memory looks "full" but is actually fine).