Re: H800 + md1200 Performance problem - Mailing list pgsql-performance

From Tomas Vondra
Subject Re: H800 + md1200 Performance problem
Date
Msg-id 4F7C4AAE.4060608@fuzzy.cz
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In response to Re: H800 + md1200 Performance problem  (Scott Marlowe <scott.marlowe@gmail.com>)
Responses Re: H800 + md1200 Performance problem  (Scott Marlowe <scott.marlowe@gmail.com>)
List pgsql-performance
On 4.4.2012 15:15, Scott Marlowe wrote:
> On Wed, Apr 4, 2012 at 3:42 AM, Cesar Martin <cmartinp@gmail.com> wrote:
>>
>> I have noticed that since I changed the setting  vm.zone_reclaim_mode = 0,
>> swap is totally full. Do you recommend me disable swap?
>
> Yes

Careful about that - it depends on how you disable it.

Setting 'vm.swappiness = 0' is a good idea, don't remove the swap (I've
been bitten by the vm.overcommit=2 without a swap repeatedly).

T.

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