On Fri, Mar 06, 2015 at 09:05:45AM -0500, John Ferlan wrote:
https://bugzilla.redhat.com/show_bug.cgi?id=1135491
$ virsh iothread --help
NAME iothreadpin - control domain IOThread affinity
SYNOPSIS iothreadpin <domain> <iothread> <cpulist> [--config] [--live] [--current]
DESCRIPTION Pin domain IOThreads to host physical CPUs.
OPTIONS [--domain] <string> domain name, id or uuid [--iothread] <number> IOThread ID number [--cpulist] <string> host cpu number(s) to set --config affect next boot --live affect running domain --current affect current domain
Using the output from iothreadsinfo, allow changing the pinned CPUs for a single IOThread.
$ virsh iothreadsinfo $dom IOThread ID CPU Affinity --------------------------------------------------- 1 2 2 3 3 0-1
$ virsh iothreadpin $dom 3 0-2
Then view the change
$ virsh iothreadsinfo $dom IOThread ID CPU Affinity --------------------------------------------------- 1 2 2 3 3 0-2
If an invalid value is supplied or require option missing, then an error will be displayed:
$ virsh iothreadpin $dom 4 3 error: invalid argument: iothread value out of range 4 > 3
$ virsh iothreadpin $dom 3 error: command 'iothreadpin' requires <cpulist> option
Signed-off-by: John Ferlan <jferlan@redhat.com> --- tools/virsh-domain.c | 106 +++++++++++++++++++++++++++++++++++++++++++++++++++ tools/virsh.pod | 26 +++++++++++++ 2 files changed, 132 insertions(+)
ACK Pavel