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Re: can't handle large number of INSERT/UPDATEs

From: Matt Clark <matt(at)ymogen(dot)net>
To: Anjan Dave <adave(at)vantage(dot)com>
Cc: Rod Taylor <pg(at)rbt(dot)ca>,Postgresql Performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: can't handle large number of INSERT/UPDATEs
Date: 2004-10-26 18:28:34
Message-ID: 417E9752.5050506@ymogen.net (view raw or flat)
Thread:
Lists: pgsql-performance
>I don't have iostat on that machine, but vmstat shows a lot of writes to
>the drives, and the runnable processes are more than 1:
>
> 6  1      0 3617652 292936 2791928    0    0     0 52430 1347  4681 25
>19 20 37
>  
>
Assuming that's the output of 'vmstat 1' and not some other delay, 
50MB/second of sustained writes is usually considered 'a lot'. 

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