| From: | Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com> |
|---|---|
| To: | Rushabh Lathia <rushabh(dot)lathia(at)gmail(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: wait events for disk I/O |
| Date: | 2017-03-13 05:24:19 |
| Message-ID: | CAKcux6nf2eK9SdynGqYYdgjPWB8=6mWPyKQdLp58ojZh26UsQQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Mar 9, 2017 at 10:54 AM, Rushabh Lathia
<rushabh(dot)lathia(at)gmail(dot)com> wrote:
> Thanks Rajkumar for performing tests on this patch.
>
> Yes, I also noticed similar results in my testing. Additionally sometime I
> also
> noticed ReadSLRUPage event on my system.
>
> I also run the reindex database command and I notices below IO events.
>
> SyncImmedRelation,
> WriteDataBlock
> WriteBuffile,
> WriteXLog,
> ReadDataBlock
I have tried for generating some more events, by running pgbench on
master/slave configuration, able to see three more events.
WriteInitXLogFile
SyncInitXLogFile
ReadXLog
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