From: Tomasz Chmielewski <mangoo@wpkg.org>
To: Avi Kivity <avi@redhat.com>
Cc: Nolan <nolan@sigbus.net>, kvm@vger.kernel.org
Subject: Re: Live memory allocation?
Date: Mon, 30 Mar 2009 17:15:25 +0200 [thread overview]
Message-ID: <49D0E20D.2010505@wpkg.org> (raw)
In-Reply-To: <49D0DE26.8040009@redhat.com>
Avi Kivity schrieb:
> Tomasz Chmielewski wrote:
>>>
>>> Double caching is indeed a bad idea. That's why you have cache=off
>>> (though it isn't recommended with qcow2).
>>
>> cache= option is about write cache, right?
>>
>> Here, I'm talking about read cache.
>>
>> Or, does "cache=none" disable read cache as well?
>
> cache=writethrough disables the write cache
> cache=none disables host caching completely
Still, if there is free memory on host, why not use it for cache?
--
Tomasz Chmielewski
http://wpkg.org
next prev parent reply other threads:[~2009-03-30 15:15 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-26 13:44 Live memory allocation? Evert
2009-03-26 14:01 ` Tomasz Chmielewski
2009-03-26 14:04 ` Izik Eidus
2009-03-26 14:11 ` Tomasz Chmielewski
2009-03-26 17:47 ` Evert
2009-03-28 13:38 ` Alberto Treviño
2009-03-28 17:17 ` Brian Jackson
2009-03-30 13:23 ` Alberto Treviño
2009-03-30 15:48 ` Brian Jackson
2009-03-28 18:25 ` Nolan
2009-03-29 12:33 ` Avi Kivity
2009-03-30 13:40 ` Tomasz Chmielewski
2009-03-30 13:48 ` Avi Kivity
2009-03-30 13:55 ` Tomasz Chmielewski
2009-03-30 14:58 ` Avi Kivity
2009-03-30 15:15 ` Tomasz Chmielewski [this message]
2009-03-30 15:18 ` Javier Guerra
2009-03-31 9:30 ` Tomasz Chmielewski
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