Re: Speed up Clog Access by increasing CLOG buffers

From: Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>
To: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Cc: David Steele <david(at)pgmasters(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, Thom Brown <thom(at)linux(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Speed up Clog Access by increasing CLOG buffers
Date: 2016-03-16 18:27:34
Message-ID: 56E9A596.2000607@redhat.com
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On 03/15/2016 01:17 AM, Amit Kapila wrote:
> I have updated the comments and changed the name of one of a variable from
> "all_trans_same_page" to "all_xact_same_page" as pointed out offlist by
> Alvaro.
>
>

I have done a run, and don't see any regressions.

Intel Xeon 28C/56T @ 2GHz w/ 256GB + 2 x RAID10 (data + xlog) SSD.

I can provide perf / flamegraph profiles if needed.

Thanks for working on this !

Best regards,
Jesper

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