8:45 a.m.
Signed-off-by: Zhi Yong Wu <wuzhy(a)linux.vnet.ibm.com>
---
tools/virsh.c | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
tools/virsh.pod | 13 ++++++++
2 files changed, 99 insertions(+), 0 deletions(-)
diff --git a/tools/virsh.c b/tools/virsh.c
index 9532bc3..51487b7 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -6019,6 +6019,91 @@ cmdBlockJob(vshControl *ctl, const vshCmd *cmd)
return true;
}
+/*
+ * "blkiothrottle" command
+ */
+static const vshCmdInfo info_blkiothrottle[] = {
+ {"help", N_("Set or display a block disk I/O throttle
setting.")},
+ {"desc", N_("Set or display a block disk I/O throttle
setting.")},
+ {NULL, NULL}
+};
+
+static const vshCmdOptDef opts_blkiothrottle[] = {
+ {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or
uuid")},
+ {"device", VSH_OT_DATA, VSH_OFLAG_REQ, N_("block device")},
+ {"bps", VSH_OT_INT, VSH_OFLAG_NONE, N_("total throughput limits in
bytes/s")},
+ {"bps_rd", VSH_OT_INT, VSH_OFLAG_NONE, N_("read throughput limits in
bytes/s")},
+ {"bps_wr", VSH_OT_INT, VSH_OFLAG_NONE, N_("write throughput limits in
bytes/s")},
+ {"iops", VSH_OT_INT, VSH_OFLAG_NONE, N_("total operation limits in
numbers/s")},
+ {"iops_rd", VSH_OT_INT, VSH_OFLAG_NONE, N_("read operation limits in
numbers/s")},
+ {"iops_wr", VSH_OT_INT, VSH_OFLAG_NONE, N_("write operation limits in
numbers/s")},
+ {NULL, 0, 0, NULL}
+};
+
+static bool
+cmdBlkIoThrottle(vshControl *ctl, const vshCmd *cmd)
+{
+ virDomainPtr dom = NULL;
+ const char *name, *disk;
+ virDomainBlockIoThrottleInfo info;
+ virDomainBlockIoThrottleInfo reply;
+ unsigned int flags = 0;
+ int ret = -1;
+
+ memset(&info, 0, sizeof(info));
+
+ if (!vshConnectionUsability(ctl, ctl->conn))
+ goto out;
+
+ if (!(dom = vshCommandOptDomain(ctl, cmd, &name)))
+ goto out;
+
+ if (vshCommandOptString(cmd, "device", &disk) < 0)
+ goto out;
+
+ if (vshCommandOptULongLong(cmd, "bps", &info.bps) < 0) {
+ info.bps = 0;
+ }
+
+ if (vshCommandOptULongLong(cmd, "bps_rd", &info.bps_rd) < 0) {
+ info.bps_rd = 0;
+ }
+
+ if (vshCommandOptULongLong(cmd, "bps_wr", &info.bps_wr) < 0) {
+ info.bps_wr = 0;
+ }
+
+ if (vshCommandOptULongLong(cmd, "iops", &info.iops) < 0) {
+ info.iops = 0;
+ }
+
+ if (vshCommandOptULongLong(cmd, "iops_rd", &info.iops_rd) < 0) {
+ info.iops_wr = 0;
+ }
+
+ if (vshCommandOptULongLong(cmd, "iops_wr", &info.iops_wr) < 0) {
+ info.bps_wr = 0;
+ }
+
+ if ((info.bps == 0) && (info.bps_rd == 0) && (info.bps_wr == 0)
+ && (info.iops == 0) && (info.iops_rd == 0) &&
(info.iops_wr == 0)) {
+ flags = 0;
+ } else {
+ flags = 1;
+ }
+
+ ret = virDomainBlockIoThrottle(dom, disk, &info, &reply, flags);
+
+ if (ret == 0) {
+ virDomainFree(dom);
+ return true;
+ }
+
+out:
+ virDomainFree(dom);
+ return false;
+}
+
/*
* "net-autostart" command
@@ -13712,6 +13797,7 @@ static const vshCmdDef domManagementCmds[] = {
{"blkiotune", cmdBlkiotune, opts_blkiotune, info_blkiotune, 0},
{"blockpull", cmdBlockPull, opts_block_pull, info_block_pull, 0},
{"blockjob", cmdBlockJob, opts_block_job, info_block_job, 0},
+ {"blkiothrottle", cmdBlkIoThrottle, opts_blkiothrottle, info_blkiothrottle,
0},
#ifndef WIN32
{"console", cmdConsole, opts_console, info_console, 0},
#endif
diff --git a/tools/virsh.pod b/tools/virsh.pod
index 1f7c76f..5b52980 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -572,6 +572,19 @@ operation can be checked with B<blockjob>.
I<path> specifies fully-qualified path of the disk.
I<bandwidth> specifies copying bandwidth limit in Mbps.
+=item B<blkiothrottle> I<domain> I<device> [[I<--bps>
B<bps>] | [[I<--bps_rd> B<bps_rd>] [I<--bps_wr> B<bps_wr>]]
[[I<--iops> B<iops>] | [[I<--iops_rd> B<iops_rd>]
[I<--iops_wr> B<iops_wr>]]
+
+Set or display the block disk io limits settting.
+I<path> specifies block disk name.
+I<--bps> specifies total throughput limit in bytes/s.
+I<--bps_rd> specifies read throughput limit in bytes/s.
+I<--bps_wr> specifies write throughput limit in bytes/s.
+I<--iops> specifies total operation limit in numbers/s.
+I<--iops_rd> specifies read operation limit in numbers/s.
+I<--iops_wr> specifies write operation limit in numbers/s.
+
+If no limit is specified, it will query current I/O limits setting.
+
=item B<blockjob> I<domain> I<path> [I<--abort>]
[I<--info>] [I<bandwidth>]
Manage active block operations.
--
1.7.1