| From: | Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
|---|---|
| To: | Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Merlin Moncure <mmoncure(at)gmail(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, YUriy Zhuravlev <u(dot)zhuravlev(at)postgrespro(dot)ru>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Move PinBuffer and UnpinBuffer to atomics |
| Date: | 2016-03-01 04:49:56 |
| Message-ID: | CAFiTN-sF6GugvzWEt0eYYZy0ibc8-EhBdShGsCQHVDBMot=qmA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Feb 29, 2016 at 5:18 PM, Alexander Korotkov <
a(dot)korotkov(at)postgrespro(dot)ru> wrote:
> I didn't reproduce the regression. I had access to multicore machine but
> didn't see either regression on low clients or improvements on high clients.
> In the attached path spinlock delay was exposed in s_lock.h and used
> in LockBufHdr().
> Dilip, could you try this version of patch? Could you also run perf or
> other profiler in the case of regression. It would be nice to compare
> profiles with and without patch. We probably could find the cause of
> regression.
>
OK, I will test it, sometime in this week.
--
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com
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