| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru> |
| Cc: | Dilip Kumar <dilipbalaut(at)gmail(dot)com>, 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: | 2016-02-26 23:44:14 |
| Message-ID: | 20160226234413.hes24u3lczzm5awp@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
On 2016-02-02 13:12:50 +0300, Alexander Korotkov wrote:
> On Tue, Feb 2, 2016 at 12:43 AM, Andres Freund <andres(at)anarazel(dot)de> wrote:
>
> > On 2016-02-01 13:06:57 +0300, Alexander Korotkov wrote:
> > > On Mon, Feb 1, 2016 at 11:34 AM, Alexander Korotkov <
> > > a(dot)korotkov(at)postgrespro(dot)ru> wrote:
> > > >> Client Base Patch
> > > >> 1 19744 19382
> > > >> 8 125923 126395
> > > >> 32 313931 333351
> > > >> 64 387339 496830
> > > >> 128 306412 350610
> > > >>
> > > >> Shared Buffer= 512MB
> > > >> max_connections=150
> > > >> Scale Factor=300
> > > >>
> > > >> ./pgbench -j$ -c$ -T300 -M prepared -S postgres
> > > >>
> > > >> Client Base Patch
> > > >> 1 17169 16454
> > > >> 8 108547 105559
> > > >> 32 241619 262818
> > > >> 64 206868 233606
> > > >> 128 137084 217013
> >
> > So, there's a small regression on low client counts. That's worth
> > addressing.
> >
>
> Interesting. I'll try to reproduce it.
Any progress here?
Regards,
Andres
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