Re: Moving more work outside WALInsertLock

Simon Riggs <simon@2ndquadrant.com>

From: Simon Riggs <simon@2ndQuadrant.com>

To: Robert Haas <robertmhaas@gmail.com>

Cc: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>, Tom Lane <tgl@sss.pgh.pa.us>, Jeff Janes <jeff.janes@gmail.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>

Date: 2012-01-08T20:22:57Z

Lists: pgsql-hackers

On Sun, Dec 25, 2011 at 7:48 PM, Robert Haas <robertmhaas@gmail.com> wrote:

> m01 tps = 631.875547 (including connections establishing)
> x01 tps = 611.443724 (including connections establishing)
> m08 tps = 4573.701237 (including connections establishing)
> x08 tps = 4576.242333 (including connections establishing)
> m16 tps = 7697.783265 (including connections establishing)
> x16 tps = 7837.028713 (including connections establishing)
> m24 tps = 11613.690878 (including connections establishing)
> x24 tps = 12924.027954 (including connections establishing)
> m32 tps = 10684.931858 (including connections establishing)
> x32 tps = 14168.419730 (including connections establishing)
> m80 tps = 10259.628774 (including connections establishing)
> x80 tps = 13864.651340 (including connections establishing)

I think a 5% loss on 1 session is worth a 40% gain on a full loaded system.

Well done Heikki.

-- 
 Simon Riggs                   http://www.2ndQuadrant.com/
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