| 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>, Rahila Syed <rahilasyed90(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: | 2017-03-20 12:21:28 |
| Message-ID: | CAKcux6koteaC585+vHEGEm=we+Qgr_sx4Rwd+i-+JhPPfsk3FQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sat, Mar 18, 2017 at 10:52 PM, Rushabh Lathia
<rushabh(dot)lathia(at)gmail(dot)com> wrote:
>
>
> On Sat, Mar 18, 2017 at 5:15 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>>
>> On Fri, Mar 17, 2017 at 10:01 AM, Rushabh Lathia
>> <rushabh(dot)lathia(at)gmail(dot)com> wrote:
>> > I tried to cover all the suggestion in the attached latest patch.
>>
>> Committed. I reworded the documentation entries, renamed a few of the
>> wait events to make things more consistent, put all three lists in
>> rigorous alphabetical order, and I fixed a couple of places where an
>> error return from a system call could lead to returning without
>> clearing the wait event.
>>
Thanks, I ran pgbench with shared_buffers set to 128kB, able to see
below wait IO events.
DataFileRead
DataFileWrite
WALInitSync
WALInitWrite
WALWrite
DataFileSync
WALRead
Thanks & Regards,
Rajkumar Raghuwanshi
QMG, EnterpriseDB Corporation
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