Signed-off-by: Zhi Yong Wu <wuzhy(a)linux.vnet.ibm.com&gt; Signed-off-by: Lei Li <lilei(a)linux.vnet.ibm.com&gt; --- tools/virsh.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ tools/virsh.pod | 13 +++++++ 2 files changed, 112 insertions(+), 0 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index 72344f0..de86c40 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -6023,6 +6023,104 @@ 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)) { + + ret = virDomainGetBlockIoThrottle(dom, disk, &reply, flags); + + if (ret != 0) + goto out; + + vshPrint(ctl, "%-15s %llu\n", _("bps:"), reply.bps); + vshPrint(ctl, "%-15s %llu\n", _("bps_rd:"), reply.bps_rd); + vshPrint(ctl, "%-15s %llu\n", _("bps_wr:"), reply.bps_wr); + vshPrint(ctl, "%-15s %llu\n", _("iops:"), reply.iops); + vshPrint(ctl, "%-15s %llu\n", _("iops_rd:"), reply.iops_rd); + vshPrint(ctl, "%-15s %llu\n", _("iops_wr:"), reply.iops_wr); + + virDomainFree(dom); + return true; + } else { + flags = 1; + + ret = virDomainSetBlockIoThrottle(dom, disk, &info, flags); + + if (ret == 0) { + virDomainFree(dom); + return true; + } + } + +out: + virDomainFree(dom); + return false; +} /* * "net-autostart" command @@ -14017,6 +14115,7 @@ 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 775d302..61ec613 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