grep -rl "#observability" ~/writing ~/notes
#observability
1 post and 1 note tagged observability.
20261 post
- 8 min
Linux load average is not CPU usage
Why a high load average can point at CPU pressure, blocked I/O, or scheduling pressure—and what to inspect next.
Notes
- TIL
perf counts, perf samples — pick the right one
perf has two modes and they answer different questions. Decide which one you are asking before you collect anything. Count when the question is how much:…