From: | Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz> |
---|---|
To: | Kevin Grittner <kgrittn(at)mail(dot)com> |
Cc: | Vlad <marchenko(at)gmail(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: High SYS CPU - need advise |
Date: | 2012-11-24 21:17:37 |
Message-ID: | 50B13971.7090608@archidevsys.co.nz |
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Lists: | pgsql-general |
On 25/11/12 09:30, Kevin Grittner wrote:
> Vlad wrote:
>
>> it's session mode and the pool size is 1200 (cause I need to
>> grantee that in the worst case we have enough slots for all
>> possible clients),
> We found that the real-world production performance of a web
> application servicing millions of we hits per day with thousands of
> concurrent users improved when we reconfigured our database
> connection pool to be about 35 instead of 55, on a 16 core box with a
> 40 drive RAID.
>
> http://wiki.postgresql.org/wiki/Number_Of_Database_Connections
>
> -Kevin
>
>
Curious, what is your RAID configuration?
Cheers,
Gavin
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