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MINOR: activity: add a line reporting the average CPU usage to "show activity"

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It was missing from the output but is sometimes convenient to observe
and understand how incoming connections are distributed. The CPU usage
is reported as the instant measurement of 100-idle_pct for each thread,
and the average value is shown for the aggregated value.

This could be backported as it's helpful in certain troublehsooting
sessions.
This commit is contained in:
Willy Tarreau 2023-04-11 15:26:24 +02:00
parent 6fd2576d5e
commit 28f2a590f6
1 changed files with 1 additions and 0 deletions
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src/activity.c
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@ -1109,6 +1109,7 @@ static int cli_io_handler_show_activity(struct appctx *appctx)
chunk_appendf(&trash, "cpust_ms_tot:"); SHOW_TOT(thr, activity[thr].cpust_total / 2);
chunk_appendf(&trash, "cpust_ms_1s:"); SHOW_TOT(thr, read_freq_ctr(&activity[thr].cpust_1s) / 2);
chunk_appendf(&trash, "cpust_ms_15s:"); SHOW_TOT(thr, read_freq_ctr_period(&activity[thr].cpust_15s, 15000) / 2);
chunk_appendf(&trash, "avg_cpu_pct:"); SHOW_AVG(thr, (100 - ha_thread_ctx[thr].idle_pct));
chunk_appendf(&trash, "avg_loop_us:"); SHOW_AVG(thr, swrate_avg(activity[thr].avg_loop_us, TIME_STATS_SAMPLES));
chunk_appendf(&trash, "accepted:"); SHOW_TOT(thr, activity[thr].accepted);
chunk_appendf(&trash, "accq_pushed:"); SHOW_TOT(thr, activity[thr].accq_pushed);