On Sat, Feb 25, 2012 at 09:09:47AM +0100, Arne Jansen wrote:
> Normally when there are 2 copies of a block, we add both to the
> reada extent tree and prefetch only the one that is easier to reach.
> This way we can better utilize multiple devices.
> In case of DUP this makes no sense as both copie
Arne Jansen posted on Sat, 25 Feb 2012 14:09:50 +0100 as excerpted:
> On 02/25/12 09:33, Duncan wrote:
>> Arne Jansen posted on Sat, 25 Feb 2012 09:09:47 +0100 as excerpted:
>>
>>> Normally when there are 2 copies of a block, we add both to the reada
>>> extent tree and prefetch only the one that
On 02/25/12 09:33, Duncan wrote:
Arne Jansen posted on Sat, 25 Feb 2012 09:09:47 +0100 as excerpted:
Normally when there are 2 copies of a block, we add both to the reada
extent tree and prefetch only the one that is easier to reach.
This way we can better utilize multiple devices.
In case of D
Arne Jansen posted on Sat, 25 Feb 2012 09:09:47 +0100 as excerpted:
> Normally when there are 2 copies of a block, we add both to the reada
> extent tree and prefetch only the one that is easier to reach.
> This way we can better utilize multiple devices.
> In case of DUP this makes no sense as bo
Normally when there are 2 copies of a block, we add both to the
reada extent tree and prefetch only the one that is easier to reach.
This way we can better utilize multiple devices.
In case of DUP this makes no sense as both copies reside on the
same device.
Signed-off-by: Arne Jansen
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fs/btr
