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qapi: Add burst length parameters to block_set_io_throttle 

This patch adds the new bps_*_max_length and iops_*_max_length
parameters to the block_set_io_throttle command.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alberto Garcia 2016-02-18 12:27:03 +02:00 committed by Kevin Wolf
parent 8a0fc18d88
commit dce13204a0
4 changed files with 104 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
blockdev.c
View File

@ -2598,6 +2598,18 @@ void qmp_block_set_io_throttle(const char *device, int64_t bps, int64_t bps_rd,
int64_t iops_rd_max,
bool has_iops_wr_max,
int64_t iops_wr_max,
bool has_bps_max_length,
int64_t bps_max_length,
bool has_bps_rd_max_length,
int64_t bps_rd_max_length,
bool has_bps_wr_max_length,
int64_t bps_wr_max_length,
bool has_iops_max_length,
int64_t iops_max_length,
bool has_iops_rd_max_length,
int64_t iops_rd_max_length,
bool has_iops_wr_max_length,
int64_t iops_wr_max_length,
bool has_iops_size,
int64_t iops_size,
bool has_group,
@ -2652,6 +2664,25 @@ void qmp_block_set_io_throttle(const char *device, int64_t bps, int64_t bps_rd,
cfg.buckets[THROTTLE_OPS_WRITE].max = iops_wr_max;
}
if (has_bps_max_length) {
cfg.buckets[THROTTLE_BPS_TOTAL].burst_length = bps_max_length;
}
if (has_bps_rd_max_length) {
cfg.buckets[THROTTLE_BPS_READ].burst_length = bps_rd_max_length;
}
if (has_bps_wr_max_length) {
cfg.buckets[THROTTLE_BPS_WRITE].burst_length = bps_wr_max_length;
}
if (has_iops_max_length) {
cfg.buckets[THROTTLE_OPS_TOTAL].burst_length = iops_max_length;
}
if (has_iops_rd_max_length) {
cfg.buckets[THROTTLE_OPS_READ].burst_length = iops_rd_max_length;
}
if (has_iops_wr_max_length) {
cfg.buckets[THROTTLE_OPS_WRITE].burst_length = iops_wr_max_length;
}
if (has_iops_size) {
cfg.op_size = iops_size;
}

12
hmp.c
View File

@ -1414,6 +1414,18 @@ void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
0,
false,
0,
false, /* no burst length via HMP */
0,
false,
0,
false,
0,
false,
0,
false,
0,
false,
0,
false, /* No default I/O size */
0,
false,

51
qapi/block-core.json
View File

@ -1298,17 +1298,53 @@
#
# @iops_wr: write I/O operations per second
#
# @bps_max: #optional total max in bytes (Since 1.7)
# @bps_max: #optional total throughput limit during bursts,
# in bytes (Since 1.7)
#
# @bps_rd_max: #optional read max in bytes (Since 1.7)
# @bps_rd_max: #optional read throughput limit during bursts,
# in bytes (Since 1.7)
#
# @bps_wr_max: #optional write max in bytes (Since 1.7)
# @bps_wr_max: #optional write throughput limit during bursts,
# in bytes (Since 1.7)
#
# @iops_max: #optional total I/O operations max (Since 1.7)
# @iops_max: #optional total I/O operations per second during bursts,
# in bytes (Since 1.7)
#
# @iops_rd_max: #optional read I/O operations max (Since 1.7)
# @iops_rd_max: #optional read I/O operations per second during bursts,
# in bytes (Since 1.7)
#
# @iops_wr_max: #optional write I/O operations max (Since 1.7)
# @iops_wr_max: #optional write I/O operations per second during bursts,
# in bytes (Since 1.7)
#
# @bps_max_length: #optional maximum length of the @bps_max burst
# period, in seconds. It must only
# be set if @bps_max is set as well.
# Defaults to 1. (Since 2.6)
#
# @bps_rd_max_length: #optional maximum length of the @bps_rd_max
# burst period, in seconds. It must only
# be set if @bps_rd_max is set as well.
# Defaults to 1. (Since 2.6)
#
# @bps_wr_max_length: #optional maximum length of the @bps_wr_max
# burst period, in seconds. It must only
# be set if @bps_wr_max is set as well.
# Defaults to 1. (Since 2.6)
#
# @iops_max_length: #optional maximum length of the @iops burst
# period, in seconds. It must only
# be set if @iops_max is set as well.
# Defaults to 1. (Since 2.6)
#
# @iops_rd_max_length: #optional maximum length of the @iops_rd_max
# burst period, in seconds. It must only
# be set if @iops_rd_max is set as well.
# Defaults to 1. (Since 2.6)
#
# @iops_wr_max_length: #optional maximum length of the @iops_wr_max
# burst period, in seconds. It must only
# be set if @iops_wr_max is set as well.
# Defaults to 1. (Since 2.6)
#
# @iops_size: #optional an I/O size in bytes (Since 1.7)
#
@ -1325,6 +1361,9 @@
'*bps_max': 'int', '*bps_rd_max': 'int',
'*bps_wr_max': 'int', '*iops_max': 'int',
'*iops_rd_max': 'int', '*iops_wr_max': 'int',
'*bps_max_length': 'int', '*bps_rd_max_length': 'int',
'*bps_wr_max_length': 'int', '*iops_max_length': 'int',
'*iops_rd_max_length': 'int', '*iops_wr_max_length': 'int',
'*iops_size': 'int', '*group': 'str' } }
##

25
qmp-commands.hx
View File

@ -2006,7 +2006,7 @@ EQMP
{
.name = "block_set_io_throttle",
.args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l,bps_max:l?,bps_rd_max:l?,bps_wr_max:l?,iops_max:l?,iops_rd_max:l?,iops_wr_max:l?,iops_size:l?,group:s?",
.args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l,bps_max:l?,bps_rd_max:l?,bps_wr_max:l?,iops_max:l?,iops_rd_max:l?,iops_wr_max:l?,bps_max_length:l?,bps_rd_max_length:l?,bps_wr_max_length:l?,iops_max_length:l?,iops_rd_max_length:l?,iops_wr_max_length:l?,iops_size:l?,group:s?",
.mhandler.cmd_new = qmp_marshal_block_set_io_throttle,
},
@ -2025,14 +2025,20 @@ Arguments:
- "iops": total I/O operations per second (json-int)
- "iops_rd": read I/O operations per second (json-int)
- "iops_wr": write I/O operations per second (json-int)
- "bps_max": total max in bytes (json-int)
- "bps_rd_max": read max in bytes (json-int)
- "bps_wr_max": write max in bytes (json-int)
- "iops_max": total I/O operations max (json-int)
- "iops_rd_max": read I/O operations max (json-int)
- "iops_wr_max": write I/O operations max (json-int)
- "iops_size": I/O size in bytes when limiting (json-int)
- "group": throttle group name (json-string)
- "bps_max": total throughput limit during bursts, in bytes (json-int, optional)
- "bps_rd_max": read throughput limit during bursts, in bytes (json-int, optional)
- "bps_wr_max": write throughput limit during bursts, in bytes (json-int, optional)
- "iops_max": total I/O operations per second during bursts (json-int, optional)
- "iops_rd_max": read I/O operations per second during bursts (json-int, optional)
- "iops_wr_max": write I/O operations per second during bursts (json-int, optional)
- "bps_max_length": maximum length of the @bps_max burst period, in seconds (json-int, optional)
- "bps_rd_max_length": maximum length of the @bps_rd_max burst period, in seconds (json-int, optional)
- "bps_wr_max_length": maximum length of the @bps_wr_max burst period, in seconds (json-int, optional)
- "iops_max_length": maximum length of the @iops_max burst period, in seconds (json-int, optional)
- "iops_rd_max_length": maximum length of the @iops_rd_max burst period, in seconds (json-int, optional)
- "iops_wr_max_length": maximum length of the @iops_wr_max burst period, in seconds (json-int, optional)
- "iops_size": I/O size in bytes when limiting (json-int, optional)
- "group": throttle group name (json-string, optional)
Example:
@ -2049,6 +2055,7 @@ Example:
"iops_max": 0,
"iops_rd_max": 0,
"iops_wr_max": 0,
"bps_max_length": 60,
"iops_size": 0 } }
<- { "return": {} }