| From: | Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Mithun Cy <mithun(dot)cy(at)enterprisedb(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Possible performance regression in version 10.1 with pgbench read-write tests. |
| Date: | 2018-07-23 04:56:56 |
| Message-ID: | CAEepm=2y=C_JRSrCUR5Z9ORohwC=chpa6vTKOrLN5cipfr_1TQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Jul 23, 2018 at 3:40 PM, Thomas Munro
<thomas(dot)munro(at)enterprisedb(dot)com> wrote:
> I did some testing on 2-node, 4-node and 8-node systems running Linux
> 3.10.something (slightly newer but still ancient). Only the 8-node
> box (= same one Mithun used) shows the large effect (the 2-node box
> may be a tiny bit faster patched but I'm calling that noise for now...
> it's not slower, anyway).
(I forgot to add that the 4 node system that showed no change is POWER
architecture.)
--
Thomas Munro
http://www.enterprisedb.com
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