| From: | Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> |
|---|---|
| To: | Torsten Zuehlsdorff <mailinglists(at)toco-domains(dot)de> |
| Cc: | Keith Fiske <keith(at)omniti(dot)com>, Matteo Beccati <php(at)beccati(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andres Freund <andres(at)anarazel(dot)de>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, 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: [HACKERS] kqueue |
| Date: | 2018-04-11 01:05:17 |
| Message-ID: | CAEepm=3kzY0ZvHBvvwJ1FzK2t9sOPs90c4zb0oOS+f7iHqhbYQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Dec 6, 2017 at 12:53 AM, Thomas Munro
<thomas(dot)munro(at)enterprisedb(dot)com> wrote:
> On Thu, Jun 22, 2017 at 7:19 PM, Thomas Munro
> <thomas(dot)munro(at)enterprisedb(dot)com> wrote:
>> I don't plan to resubmit this patch myself, but I was doing some
>> spring cleaning and rebasing today and I figured it might be worth
>> quietly leaving a working patch here just in case anyone from the
>> various BSD communities is interested in taking the idea further.
I heard through the grapevine of some people currently investigating
performance problems on busy FreeBSD systems, possibly related to the
postmaster pipe. I suspect this patch might be a part of the solution
(other patches probably needed to get maximum value out of this patch:
reuse WaitEventSet objects in some key places, and get rid of high
frequency PostmasterIsAlive() read() calls). The autoconf-fu in the
last version bit-rotted so it seemed like a good time to post a
rebased patch.
--
Thomas Munro
http://www.enterprisedb.com
| Attachment | Content-Type | Size |
|---|---|---|
| kqueue-v9.patch | application/octet-stream | 16.6 KB |
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