On Mon, Sep 29, 2025 at 09:46:05AM +0800, Chao Li wrote: > I saw pg_state_begin_changecount_write() is called multiple places, > as you mention, for example bgwriter.
I've mentioned that in my first email, and put in details: - pgstat_report_bgwriter() is called once, by the bgwriter. - pgstat_report_checkpointer() is called three time, all by the checkpointer. - pgstat_report_archiver() is called twice, all by pgarch.c. So all of them don't have a problem, two calls cannot happen concurrently. -- Michael
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