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Re: [Qemu-block] [PATCH] block/iscsi: precache the allocation status of
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-block] [PATCH] block/iscsi: precache the allocation status of a target |
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Date: |
Thu, 7 Jul 2016 14:21:07 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 |
On 07/07/2016 13:40, Peter Lieven wrote:
>>>
>> This can take a long time and the disks may not even be ever used. I
>> don't think it's a good idea.
>
> Sure, the target might stay unused, but why do you suspect its slow?
I don't suspect it's slow; it's just that it can be O(size of disk), and
can send really a lot of commands down the link. I don't think it's a
good thing to do in advance.
Paolo