From: Tom Lane <tgl@sss.pgh.pa.us>
To: patrick keshishian <pkeshish@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: pg 7.4.x - pg_restore impossibly slow
Date: Thu, 13 Apr 2006 00:46:51 -0400
Message-ID: <9585.1144903611@sss.pgh.pa.us> (raw)
In-Reply-To: <53b425b00604121826x213fe2fdmc793e22026469923@mail.gmail.com>
References: <53b425b00604121826x213fe2fdmc793e22026469923@mail.gmail.com>
"patrick keshishian" <pkeshish@gmail.com> writes:
> My dev box is much slower hardware than the customer's
> server. Even with that difference I expected to be able to
> pg_restore the database within one day. But no.
Seems a bit odd. Can you narrow down more closely which step of the
restore is taking the time? (Try enabling log_statements.)
One thought is that kicking up work_mem and vacuum_mem is likely to
help for some steps (esp. CREATE INDEX and foreign-key checking).
And be sure you've done the usual tuning for write-intensive activity,
such as bumping up checkpoint_segments. Turning off fsync wouldn't
be a bad idea either.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, pkeshish@gmail.com
Subject: Re: pg 7.4.x - pg_restore impossibly slow
In-Reply-To: <9585.1144903611@sss.pgh.pa.us>
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