You caught me; guess I'd better make something up fast, huh?
Here it is, thanks.
-- Korry
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korryd@enterprisedb.com wrote:
> It's difficult to profile a backend server process (using gprof)
> because each process overwrites any earlier profile as it exits.
>
> It is especially tricky to nab a useful profile if you happen to have
> autovacuum enabled.
>
> This patch reduces the problem by forcing the backend to 'cd' to a new
> directory ($PGDATA/gprof/pid) just before calling exit(), but only if
> the backend was compiled with -DLINUX_PROFILE.
>
> I've tested this with Linux, but not with other host architectures.
>
> -- Korry
>
>
>
> --
> Korry Douglas korryd@enterprisedb.com
> EnterpriseDB http://www.enterprisedb.com