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Re: [Qemu-block] null-co undefined read behavior
From: |
Max Reitz |
Subject: |
Re: [Qemu-block] null-co undefined read behavior |
Date: |
Tue, 13 Jun 2017 18:03:07 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 |
On 2017-06-13 10:43, Fam Zheng wrote:
> On Tue, 06/13 09:52, Kevin Wolf wrote:
>> (6) Make read-zeroes=on the default. Gives people worse performance if
>> they expect that null-co:// without any options is the fastest thing
>> possible, but it has defined behaviour by default which seems good.
>
> Not that it really matters, but null-co:// is then a poor taste of name
> because
> we actually gives a zero-co:// (the difference is similar to /dev/zero versus
> null_blk in Linux).
We can always claim it's just a German block driver name (and legacy of
the block layer Germanification attempt).
(German "null" == English "zero")
Sorry.
Max
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Re: [Qemu-block] null-co undefined read behavior, Stefan Hajnoczi, 2017/06/13