Re: Why would writes to pgsql_tmp bottleneck at 1mb/s?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: josh(at)agliodbs(dot)com
Cc: "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Why would writes to pgsql_tmp bottleneck at 1mb/s?
Date: 2005-03-09 04:27:44
Message-ID: 16215.1110342464@sss.pgh.pa.us
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Josh Berkus <josh(at)agliodbs(dot)com> writes:
> Maybe I'm not an idiot (really!) even with almost 2GB of maintenance_mem, PG
> still writes to pgsql_tmp no faster than 2MB/s. I think there may be an
> artificial bottleneck there. Question is, PostgreSQL, OS or hardware?

AFAIR that's just fwrite() ...

regards, tom lane

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