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Re: RFC: replace pg_stat_activity.waiting with something more descriptive - Mailing list pgsql-hackers

From Tom Lane
Subject Re: RFC: replace pg_stat_activity.waiting with something more descriptive
Date
Msg-id 25819.1437102321@sss.pgh.pa.us
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In response to Re: RFC: replace pg_stat_activity.waiting with something more descriptive  (Peter Geoghegan <pg@heroku.com>)
Responses Re: RFC: replace pg_stat_activity.waiting with something more descriptive
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Peter Geoghegan <pg@heroku.com> writes:
> I've heard that clock_gettime() with CLOCK_REALTIME_COARSE, or with
> CLOCK_MONOTONIC_COARSE can have significantly lower overhead than
> gettimeofday().

It can, but it also has *much* lower precision, typically 1ms or so.
        regards, tom lane

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