Dump restore performance 7.3 -> 8.1

From: "Jesper Krogh" <jesper(at)krogh(dot)cc>
To: pgsql-performance(at)postgresql(dot)org
Subject: Dump restore performance 7.3 -> 8.1
Date: 2006-04-10 08:22:31
Message-ID: 27860.195.41.66.226.1144657351.squirrel@mail.jabbernet.dk
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Hi

I'm currently upgrading a Posgresql 7.3.2 database to a
8.1.<something-good>

I'd run pg_dump | gzip > sqldump.gz on the old system. That took about
30 hours and gave me an 90GB zipped file. Running
cat sqldump.gz | gunzip | psql
into the 8.1 database seems to take about the same time. Are there
any tricks I can use to speed this dump+restore process up?

Neither disk-io (viewed using vmstat 1) or cpu (viewed using top) seems to
be the bottleneck.

The database contains quite alot of BLOB's, thus the size.

Jesper
--
Jesper Krogh

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