| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Marko Tiikkaja <marko(at)joh(dot)to>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Noah Misch <noah(at)leadboat(dot)com> |
| Subject: | Re: kqueue |
| Date: | 2016-09-14 06:46:58 |
| Message-ID: | CAB7nPqQq6_TFyPsKEOfcgBZO19t_sMMxXT3zogE1tp4a6G3WQA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Sep 14, 2016 at 3:32 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Michael Paquier <michael(dot)paquier(at)gmail(dot)com> writes:
>> From an OSX laptop with -S, -c 1 and -M prepared (9 runs, removed the
>> three best and three worst):
>> - HEAD: 9356/9343/9369
>> - HEAD + patch: 9433/9413/9461.071168
>> This laptop has a lot of I/O overhead... Still there is a slight
>> improvement here as well. Looking at the progress report, per-second
>> TPS gets easier more frequently into 9500~9600 TPS with the patch. So
>> at least I am seeing something.
>
> Which OSX version exactly?
El Capitan 10.11.6. With -s 20 (300MB) and 1GB of shared_buffers so as
everything is on memory. Actually re-running the tests now with no VMs
around and no apps, I am getting close to 9650~9700TPS with patch, and
9300~9400TPS on HEAD, so that's unlikely only noise.
--
Michael
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