Re: NUMA packaging and patch - Mailing list pgsql-hackers

From Kevin Grittner
Subject Re: NUMA packaging and patch
Date
Msg-id 1402421668.47534.YahooMailNeo@web122302.mail.ne1.yahoo.com
Whole thread Raw
In response to Re: NUMA packaging and patch  (Josh Berkus <josh@agliodbs.com>)
Responses Re: NUMA packaging and patch  (Kohei KaiGai <kaigai@kaigai.gr.jp>)
List pgsql-hackers
Josh Berkus <josh@agliodbs.com> wrote:
> On 06/08/2014 03:45 PM, Kevin Grittner wrote:
>> By default, the OS cache and buffers are allocated in the memory
>> node with the shortest "distance" from the CPU a process is
>> running on.
>
> Note that this will stop being the default in future Linux kernels.
> However, we'll have to deal with the old ones for some time to come.

I was not aware of that.  Thanks.  Do you have a URL handy?

In any event, that is the part of the problem which I think falls
into the realm of packagers and/or sysadmins; a patch for that
doesn't seem sensible, given how cpusets are implemented.  I did
figure we would want to add some documentation around it, though.
Do you agree that is worthwhile?

--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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