On Sat, Nov 01, 2003 at 10:29:34PM +0100, Manfred Spraul wrote:
> Mark Wong wrote:
>
> >Yeah, my dbt2 applications are multithreaded.
> >
> >
> Do you need SIGPIPE delivery in your app? If no, could you try what
> happens if you apply the attached patch to postgres, and perform the
> signal(SIGPIPE, SIG_IGN);
> once in your dbt2 app?
Wow, that patch made a pretty big difference:
http://developer.osdl.org/markw/dbt2-pgsql/191/
- metric 1605.51
So no one has to look for older mail before I applied that patch:
http://developer.osdl.org/markw/dbt2-pgsql/190/
- metric 1427.24
Looks like about a 12% improvement in the overall metric. The first thing I
noticed is that do_sigaction in the kernel profile almost disappeared. The
top few functions in the database profile doesn't appear to have changed much.
Mark
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