docs: change the minimum weight description for blkio

Since 2.6.39, kernel changed the minimum weight of device blkio.
Update related docs.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
This commit is contained in:
Chen Hanxiao 2013-10-11 21:41:22 +08:00 committed by Daniel P. Berrange
parent e06d23fd65
commit b8b22d1969
2 changed files with 10 additions and 7 deletions

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@ -772,7 +772,8 @@
<dt><code>weight</code></dt>
<dd> The optional <code>weight</code> element is the overall I/O
weight of the guest. The value should be in the range [100,
1000].</dd>
1000]. After kernel 2.6.39, the value could be in the
range [10, 1000].</dd>
<dt><code>device</code></dt>
<dd>The domain may have multiple <code>device</code> elements
that further tune the weights for each host block device in
@ -789,7 +790,8 @@
mandatory sub-elements, <code>path</code> describing the
absolute path of the device, and <code>weight</code> giving
the relative weight of that device, in the range [100,
1000]. <span class="since">Since 0.9.8</span></dd>
1000]. After kernel 2.6.39, the value could be in the
range [10, 1000].<span class="since">Since 0.9.8</span></dd>
</dl>

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@ -1629,14 +1629,15 @@ Specifying -1 as a value for these limits is interpreted as unlimited.
[I<--live>] | [I<--current>]]
Display or set the blkio parameters. QEMU/KVM supports I<--weight>.
I<--weight> is in range [100, 1000].
I<--weight> is in range [100, 1000]. After kernel 2.6.39, the value
could be in the range [10, 1000].
B<device-weights> is a single string listing one or more device/weight
pairs, in the format of /path/to/device,weight,/path/to/device,weight.
Each weight is in the range [100, 1000], or the value 0 to remove that
device from per-device listings. Only the devices listed in the string
are modified; any existing per-device weights for other devices remain
unchanged.
Each weight is in the range [100, 1000], [10, 1000] after kernel 2.6.39,
or the value 0 to remove that device from per-device listings.
Only the devices listed in the string are modified;
any existing per-device weights for other devices remain unchanged.
If I<--live> is specified, affect a running guest.
If I<--config> is specified, affect the next boot of a persistent guest.