On Fri, 2021-12-10 at 10:20 -0500, Tom Lane wrote: > Jeff Janes <jeff(dot)janes(at)gmail(dot)com> writes: > > Can we change the default setting of track_io_timing to on? > > That adds a very significant amount of overhead on some platforms > (gettimeofday is not cheap if it requires a kernel call). And I > doubt the claim that the average Postgres user needs this, and > doubt even more that they need it on all the time. > So I'm -1 on the idea.
I set "track_io_timing" to "on" all the time, same as "log_lock_waits", so I'd want them both on by default.