Re: Speed up Clog Access by increasing CLOG buffers

From: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
To: Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Speed up Clog Access by increasing CLOG buffers
Date: 2015-09-19 03:11:44
Message-ID: CAA4eK1LKw4zR6Mb5EQWsmRCyhxpeUakRrDyB1Gth6nw4ktw3iw@mail.gmail.com
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On Fri, Sep 18, 2015 at 11:08 PM, Jesper Pedersen <
jesper(dot)pedersen(at)redhat(dot)com> wrote:

> On 09/11/2015 10:31 AM, Amit Kapila wrote:
>
>> Updated comments and the patch (increate_clog_bufs_v2.patch)
>> containing the same is attached.
>>
>>
> I have done various runs on an Intel Xeon 28C/56T w/ 256Gb mem and 2 x
> RAID10 SSD (data + xlog) with Min(64,).
>
>
The benefit with this patch could be seen at somewhat higher
client-count as you can see in my initial mail, can you please
once try with client count > 64?

With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

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