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Re: [Qemu-devel] effect of cluster_size on qcow2 performance during expa
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] effect of cluster_size on qcow2 performance during expansion |
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Date: |
Thu, 23 Feb 2012 09:17:03 +0000 |
On Thu, Feb 23, 2012 at 8:24 AM, PANKAJ RAWAT <address@hidden> wrote:
> Here are the reading taken through fio tool during write operation
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> Cluster size : 32K 587Mb/sec (aggrb MB/sec)
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> Cluster size : 64K 697Mb/sec (aggrb MB/sec)
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> Cluster size : 1M 440Mb/sec (aggrb MB/sec)
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> Cluster size : 2M 289Mb/sec (aggrb MB/sec)
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> as in above it can bee seen that the 64k is performing better
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> can any one tell why ?
Yes. Please see the other email thread you created on this topic.
Stefan