于 2011年02月01日 01:19, Eric Blake 写道:
On 01/29/2011 10:43 PM, Osier Yang wrote:
* tools/virsh.pod --- tools/virsh.pod | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/tools/virsh.pod b/tools/virsh.pod index 441ca8a..d3262b6 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -566,7 +566,11 @@ Xen (credit scheduler): weight, cap
ESX (allocation scheduler): reservation, limit, shares
-B<Note>: The cpu_shares parameter has a valid value range of 0-262144. +B<Note>: The cpu_shares parameter has a valid value range of 0-262144, however, +negative number and positive number greater than 262144 are allowed, but +negative number will be converted into positive number, and positive number +greater than 262144 will be reduced to 262144 by cgroup in the end, e.g. -1 +can be used as useful shorthand for 262144.
The range of 262144 is specific to cgroups (qemu and lxc); it is possible that some other hypervisor may add similar support for this parameter, but have a different range. Then again, we already documented it is specific to qemu and lxc, so we could update a change in range at the time of introducing the cpu_shares parameter to another hypervisor.
However, your attempt is still wordy. Can we go with something more compact, as in:
B<Note>: The cpu_shares parameter has a valid value range of 0-262144; negative values are wrapped to positive, and larger values are capped at the maximum. Therefore, -1 is a useful shorthand for 262144.
Yeah, It's more compact, updated with above, and pushed, thanks Regards Osier