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* scheduler
@ 2008-01-22 07:00 Adrian Moisey <adrian@careerjunction.co.za>
0 siblings, 2 replies; 5+ messages in thread
From: Adrian Moisey @ 2008-01-22 07:00 UTC (permalink / raw)
To: pgsql-performance
Hi
Which scheduler is recommended for a box that is dedicated to running
postgres?
I've asked google and found no answers.
--
Adrian Moisey
System Administrator | CareerJunction | Your Future Starts Here.
Web: www.careerjunction.co.za | Email: adrian@careerjunction.co.za
Phone: +27 21 686 6820 | Mobile: +27 82 858 7830 | Fax: +27 21 686 6842
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: scheduler
@ 2008-01-22 08:10 Claus Guttesen <kometen@gmail.com>
parent: Adrian Moisey <adrian@careerjunction.co.za>
1 sibling, 1 reply; 5+ messages in thread
From: Claus Guttesen @ 2008-01-22 08:10 UTC (permalink / raw)
To: Adrian Moisey <adrian@careerjunction.co.za>; +Cc: pgsql-performance
> Which scheduler is recommended for a box that is dedicated to running
> postgres?
>
> I've asked google and found no answers.
Is it the OS itself?
--
regards
Claus
When lenity and cruelty play for a kingdom,
the gentlest gamester is the soonest winner.
Shakespeare
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: scheduler
@ 2008-01-22 08:27 Adrian Moisey <adrian@careerjunction.co.za>
parent: Claus Guttesen <kometen@gmail.com>
0 siblings, 1 reply; 5+ messages in thread
From: Adrian Moisey @ 2008-01-22 08:27 UTC (permalink / raw)
To: Claus Guttesen <kometen@gmail.com>; +Cc: pgsql-performance
Hi
>> Which scheduler is recommended for a box that is dedicated to running
>> postgres?
>>
>> I've asked google and found no answers.
>
> Is it the OS itself?
Yes, in linux. I've found that cfq or deadline is best, but I haven't
seen anyone try a benchmark
--
Adrian Moisey
System Administrator | CareerJunction | Your Future Starts Here.
Web: www.careerjunction.co.za | Email: adrian@careerjunction.co.za
Phone: +27 21 686 6820 | Mobile: +27 82 858 7830 | Fax: +27 21 686 6842
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: scheduler
@ 2008-01-22 08:37 david@lang.hm
parent: Adrian Moisey <adrian@careerjunction.co.za>
0 siblings, 0 replies; 5+ messages in thread
From: david@lang.hm @ 2008-01-22 08:37 UTC (permalink / raw)
To: Adrian Moisey <adrian@careerjunction.co.za>; +Cc: Claus Guttesen <kometen@gmail.com>; pgsql-performance
On Tue, 22 Jan 2008, Adrian Moisey wrote:
> Hi
>
>>> Which scheduler is recommended for a box that is dedicated to running
>>> postgres?
>>>
>>> I've asked google and found no answers.
>>
>> Is it the OS itself?
>
> Yes, in linux. I've found that cfq or deadline is best, but I haven't seen
> anyone try a benchmark
it also depends on your hardware. if you have a good battery-backed cache
on your I/O system you may be best off with 'none' (or simple elevator, I
don't remember the exact name)
the more complexity in your I/O that the kernek oesn't know about, the
less likely it is to make the right decision.
David Lang
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: scheduler
@ 2008-01-22 08:45 Luke Lonergan <LLonergan@greenplum.com>
parent: Adrian Moisey <adrian@careerjunction.co.za>
1 sibling, 0 replies; 5+ messages in thread
From: Luke Lonergan @ 2008-01-22 08:45 UTC (permalink / raw)
To: Adrian Moisey <adrian@careerjunction.co.za>; pgsql-performance
Deadline works best for us. The new AS is getting better, but last we
tried there were issues with it.
- Luke
> -----Original Message-----
> From: pgsql-performance-owner@postgresql.org
> [mailto:pgsql-performance-owner@postgresql.org] On Behalf Of
> Adrian Moisey
> Sent: Monday, January 21, 2008 11:01 PM
> To: pgsql-performance@postgresql.org
> Subject: [PERFORM] scheduler
>
> Hi
>
> Which scheduler is recommended for a box that is dedicated to
> running postgres?
>
> I've asked google and found no answers.
>
> --
> Adrian Moisey
> System Administrator | CareerJunction | Your Future Starts Here.
> Web: www.careerjunction.co.za | Email: adrian@careerjunction.co.za
> Phone: +27 21 686 6820 | Mobile: +27 82 858 7830 | Fax: +27
> 21 686 6842
>
> ---------------------------(end of
> broadcast)---------------------------
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^ permalink raw reply [nested|flat] 5+ messages in thread
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-- links below jump to the message on this page --
2008-01-22 07:00 scheduler Adrian Moisey <adrian@careerjunction.co.za>
2008-01-22 08:10 ` Claus Guttesen <kometen@gmail.com>
2008-01-22 08:27 ` Adrian Moisey <adrian@careerjunction.co.za>
2008-01-22 08:37 ` david@lang.hm
2008-01-22 08:45 ` Luke Lonergan <LLonergan@greenplum.com>
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