From: Brad Campbell <brad@wasp.net.au>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Wipe patch
Date: Wed, 26 Jul 2006 13:35:53 +0400 [thread overview]
Message-ID: <44C73779.7070104@wasp.net.au> (raw)
In-Reply-To: <44C733B9.9080705@qumranet.com>
Avi Kivity wrote:
>> This _looks_ like it would severely impact cpu load during a write.
>> Have you done any testing to determine if this is likely to impact a
>> normal usage scenario?
>
> Why would it? In most cases, the zero test would terminate quickly,
> without accessing the entire cluster.
>
Good point, when I looked at it my brain was in zero wipe mode.. which would be slow but then a
bucketload faster than writing the actual cluster to disk..
Brad
--
"Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so." -- Douglas Adams
next prev parent reply other threads:[~2006-07-26 9:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-26 8:23 [Qemu-devel] Wipe patch ZIGLIO, Frediano, VF-IT
2006-07-26 8:41 ` Brad Campbell
2006-07-26 9:19 ` Avi Kivity
2006-07-26 9:35 ` Brad Campbell [this message]
2006-08-02 2:25 ` Brad Campbell
2006-08-02 2:49 ` andrzej zaborowski
2006-08-02 2:51 ` andrzej zaborowski
2006-08-02 3:09 ` Brad Campbell
2006-08-02 7:39 ` Nigel Horne
2006-08-02 17:32 ` Andreas Bollhalder
-- strict thread matches above, loose matches on Subject: below --
2006-07-26 8:48 ZIGLIO, Frediano, VF-IT
2006-07-26 9:42 ZIGLIO, Frediano, VF-IT
2006-07-26 9:52 ` Brad Campbell
2006-08-02 12:53 ZIGLIO, Frediano, VF-IT
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