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authorAlberto Garcia <berto@igalia.com>2015-06-08 18:17:44 +0200
committerStefan Hajnoczi <stefanha@redhat.com>2015-06-12 14:00:00 +0100
commit76f4afb40fa076ed23fe0ab42c7a768ddb71123f (patch)
tree38d8b57c8c56a457a060866197d03d537653c2a3 /qmp-commands.hx
parent1fee955f9cc5903b3c7f79bbd90929aefad583a6 (diff)
throttle: Add throttle group support
The throttle group support use a cooperative round robin scheduling algorithm. The principles of the algorithm are simple: - Each BDS of the group is used as a token in a circular way. - The active BDS computes if a wait must be done and arms the right timer. - If a wait must be done the token timer will be armed so the token will become the next active BDS. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: f0082a86f3ac01c46170f7eafe2101a92e8fde39.1433779731.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'qmp-commands.hx')
-rw-r--r--qmp-commands.hx3
1 files changed, 2 insertions, 1 deletions
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 867a21fab6..a819160812 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -1853,7 +1853,7 @@ 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?",
+ .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?",
.mhandler.cmd_new = qmp_marshal_input_block_set_io_throttle,
},
@@ -1879,6 +1879,7 @@ Arguments:
- "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)
Example: