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No information about "no wait" state #10

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egor-rogov opened this issue Sep 11, 2018 · 1 comment
Open

No information about "no wait" state #10

egor-rogov opened this issue Sep 11, 2018 · 1 comment

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@egor-rogov
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@egor-rogov egor-rogov commented Sep 11, 2018

The case of not waiting (wait_event_info == 0) is no less important than the case of waiting. Absence of "no wait" counts in profile make it impossible to compare waiting time to active time.
@egor-rogov
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@egor-rogov egor-rogov commented Sep 11, 2018

Looks like this requires another algorithm of iterating over backends, probably the same as in pg_stat_activity. Just commenting out if (proc->wait_event_info == 0) continue; in probe_waits() leaves a lot of empty rows in profile from some processes which are not listed in pg_stat_activity.
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