Re: AccessShareLock and Resource Contention

From: maillists0(at)gmail(dot)com
To: PostgreSQL pg-general List <pgsql-general(at)postgresql(dot)org>
Subject: Re: AccessShareLock and Resource Contention
Date: 2013-11-26 17:50:34
Message-ID: CAB+OxSDWfSDRfQz_owg-x=UCnGNu8Am2pSVW7M+iHfiT2WO2CQ@mail.gmail.com
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Hit send on that one too soon. I see 6.5k access share locks out of 7.5k
transactions.

On Tue, Nov 26, 2013 at 12:41 PM, <maillists0(at)gmail(dot)com> wrote:

> I have a 9.2 server that occasionally becomes CPU bound. Disk wait is
> nominal and there's no memory pressure. The workload is almost all reads
> and the cache hit rate is high.
>
> For some one minute periods, my monitoring shows around 1.5k to 2k access
> share locks out of a total of 7.5 to 8k transactions. What's the best
> strategy for finding out if that is creating a bottleneck?
>

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