diff options
| author | Alberto Garcia <berto@igalia.com> | 2015-06-08 18:17:44 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2015-06-12 14:00:00 +0100 |
| commit | 76f4afb40fa076ed23fe0ab42c7a768ddb71123f (patch) | |
| tree | 38d8b57c8c56a457a060866197d03d537653c2a3 /block/qapi.c | |
| parent | 1fee955f9cc5903b3c7f79bbd90929aefad583a6 (diff) | |
| download | qemu-76f4afb40fa076ed23fe0ab42c7a768ddb71123f.tar.gz | |
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 'block/qapi.c')
| -rw-r--r-- | block/qapi.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/block/qapi.c b/block/qapi.c index 18d2b95f54..a5ac31268d 100644 --- a/block/qapi.c +++ b/block/qapi.c @@ -24,6 +24,7 @@ #include "block/qapi.h" #include "block/block_int.h" +#include "block/throttle-groups.h" #include "block/write-threshold.h" #include "qmp-commands.h" #include "qapi-visit.h" @@ -65,7 +66,9 @@ BlockDeviceInfo *bdrv_block_device_info(BlockDriverState *bs, Error **errp) if (bs->io_limits_enabled) { ThrottleConfig cfg; - throttle_get_config(&bs->throttle_state, &cfg); + + throttle_group_get_config(bs, &cfg); + info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg; info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg; info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg; |