| From: | KONDO Mitsumasa <kondo(dot)mitsumasa(at)lab(dot)ntt(dot)co(dot)jp> |
|---|---|
| To: | Rajeev rastogi <rajeev(dot)rastogi(at)huawei(dot)com>, Mitsumasa KONDO <kondo(dot)mitsumasa(at)gmail(dot)com> |
| Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Add min and max execute statement time in pg_stat_statement |
| Date: | 2014-01-30 04:48:47 |
| Message-ID: | 52E9D9AF.2060209@lab.ntt.co.jp |
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| Lists: | pgsql-hackers |
(2014/01/29 17:31), Rajeev rastogi wrote:
> On 28th January, Mitsumasa KONDO wrote:
>> By the way, latest pg_stat_statement might affect performance in
>> Windows system.
>> Because it uses fflush() system call every creating new entry in
>> pg_stat_statements, and it calls many fread() to warm file cache. It
>> works well in Linux system, but I'm not sure in Windows system. If you
>> have time, could you test it on your Windows system? If it affects
>> perfomance a lot, we can still change it.
>
>
> No Issue, you can share me the test cases, I will take the performance report.
Thank you for your kind!
I posted another opinion in his patch. So please wait for a while, for not waste
your test time.
Regards,
--
Mitsumasa KONDO
NTT Open Source Software Center
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