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[Qemu-devel] qemu disk use writeback don't take effect in centos 7.2 151
From: |
Paul Schlacter |
Subject: |
[Qemu-devel] qemu disk use writeback don't take effect in centos 7.2 1511 |
Date: |
Wed, 1 Nov 2017 15:44:41 +0800 |
qemu version: 2.9.0
image: centos 7.2 1511 raw
cache mode: writeback
In centos7.2 time, the use of writeback and none, the result of dd disk is
the same io, no change
But I replaced centos7.1 centos7.3 centos7.4 when writeback was
significantly faster than none
Would like to ask what is going on, how to solve ?
- [Qemu-devel] qemu disk use writeback don't take effect in centos 7.2 1511,
Paul Schlacter <=