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throttle: Add command-line settings to define the burst periods 

This patch adds all the throttling.*-max-length command-line
parameters to define the length of the burst periods.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alberto Garcia 2016-02-18 12:27:02 +02:00 committed by Kevin Wolf
parent 100f8f2608
commit 8a0fc18d88
1 changed files with 37 additions and 0 deletions
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37
blockdev.c
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@ -414,6 +414,19 @@ static void extract_common_blockdev_options(QemuOpts *opts, int *bdrv_flags,
throttle_cfg->buckets[THROTTLE_OPS_WRITE].max =
qemu_opt_get_number(opts, "throttling.iops-write-max", 0);
throttle_cfg->buckets[THROTTLE_BPS_TOTAL].burst_length =
qemu_opt_get_number(opts, "throttling.bps-total-max-length", 1);
throttle_cfg->buckets[THROTTLE_BPS_READ].burst_length =
qemu_opt_get_number(opts, "throttling.bps-read-max-length", 1);
throttle_cfg->buckets[THROTTLE_BPS_WRITE].burst_length =
qemu_opt_get_number(opts, "throttling.bps-write-max-length", 1);
throttle_cfg->buckets[THROTTLE_OPS_TOTAL].burst_length =
qemu_opt_get_number(opts, "throttling.iops-total-max-length", 1);
throttle_cfg->buckets[THROTTLE_OPS_READ].burst_length =
qemu_opt_get_number(opts, "throttling.iops-read-max-length", 1);
throttle_cfg->buckets[THROTTLE_OPS_WRITE].burst_length =
qemu_opt_get_number(opts, "throttling.iops-write-max-length", 1);
throttle_cfg->op_size =
qemu_opt_get_number(opts, "throttling.iops-size", 0);
@ -4071,6 +4084,30 @@ QemuOptsList qemu_common_drive_opts = {
.name = "throttling.bps-write-max",
.type = QEMU_OPT_NUMBER,
.help = "total bytes write burst",
},{
.name = "throttling.iops-total-max-length",
.type = QEMU_OPT_NUMBER,
.help = "length of the iops-total-max burst period, in seconds",
},{
.name = "throttling.iops-read-max-length",
.type = QEMU_OPT_NUMBER,
.help = "length of the iops-read-max burst period, in seconds",
},{
.name = "throttling.iops-write-max-length",
.type = QEMU_OPT_NUMBER,
.help = "length of the iops-write-max burst period, in seconds",
},{
.name = "throttling.bps-total-max-length",
.type = QEMU_OPT_NUMBER,
.help = "length of the bps-total-max burst period, in seconds",
},{
.name = "throttling.bps-read-max-length",
.type = QEMU_OPT_NUMBER,
.help = "length of the bps-read-max burst period, in seconds",
},{
.name = "throttling.bps-write-max-length",
.type = QEMU_OPT_NUMBER,
.help = "length of the bps-write-max burst period, in seconds",
},{
.name = "throttling.iops-size",
.type = QEMU_OPT_NUMBER,