From: | Jean-David Beyer <jeandavid8(at)verizon(dot)net> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Subject: | Is there anything special about pg_dump's compression? |
Date: | 2007-11-15 16:05:44 |
Message-ID: | 473C6E58.5010102@verizon.net |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
When I run pg_dump, the computer spends a great amount of time in "system"
state. Like 100% of one cpu and part of another. The small part seems to be
the postgreSQL server, and the big part the client (pg_dump) compressing the
data.
Now my tape drive has built-in compression anyway (although I could turn it
off). I prefer to let the hardware compression run since it is a nuisance to
turn it on and off and I want it on for my normal backups of the rest of the
system.
Does pg_dump's compression do anything really special that it is not likely
the tape drive already does? The drive claims 2:1 compression for average
data (e.g., not already compressed stuff like .jpeg files).
--
.~. Jean-David Beyer Registered Linux User 85642.
/V\ PGP-Key: 9A2FC99A Registered Machine 241939.
/( )\ Shrewsbury, New Jersey http://counter.li.org
^^-^^ 10:50:01 up 23 days, 4:08, 5 users, load average: 4.16, 4.40, 4.44
From | Date | Subject | |
---|---|---|---|
Next Message | Andrew Sullivan | 2007-11-15 16:11:38 | Re: Is there anything special about pg_dump's compression? |
Previous Message | Stephan Szabo | 2007-11-15 15:35:01 | Re: trap for any exception |