| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, David Steele <david(at)pgmasters(dot)net>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru> |
| Subject: | Re: Fix checkpoint skip logic on idle systems by tracking LSN progress |
| Date: | 2016-11-19 04:35:43 |
| Message-ID: | CAB7nPqRa=igQMCx+FxbfwJ0TzhLU2tE+YOng7qAvZ+1NPm-FOw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Nov 18, 2016 at 7:00 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> Okay, I have done some performance tests with this patch and found that it doesn't have any noticeable impact which is good. Details of performance tests is below:
> Machine configuration:
> 2 sockets, 28 cores (56 including Hyper-Threading)
> RAM = 64GB
> Data directory is configured on the magnetic disk and WAL on SSD.
Nice spec!
> The conclusion from my tests is that this patch is okay as far as performance is concerned.
Thank you a lot for doing those additional tests!
--
Michael
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