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| author | Benoît Canet <benoit@irqsave.net> | 2013-09-02 14:14:40 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-09-06 15:25:07 +0200 |
| commit | 3e9fab690d59ac15956c3733fe0794ce1ae4c4af (patch) | |
| tree | 0d7b4d55ff9a3664091148713c5a5bc3e2a02c8d /hmp.c | |
| parent | cc0681c45430a1f1a4c2d06e9499b7775afc9a18 (diff) | |
| download | qemu-3e9fab690d59ac15956c3733fe0794ce1ae4c4af.tar.gz qemu-3e9fab690d59ac15956c3733fe0794ce1ae4c4af.tar.bz2 qemu-3e9fab690d59ac15956c3733fe0794ce1ae4c4af.zip | |
block: Add support for throttling burst max in QMP and the command line.
The max parameter of the leaky bucket throttling algorithm can be used to
allow the guest to do bursts.
The max value is a pool of I/O that the guest can use without being throttled
at all. Throttling is triggered once this pool is empty.
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hmp.c')
| -rw-r--r-- | hmp.c | 32 |
1 files changed, 29 insertions, 3 deletions
@@ -344,14 +344,28 @@ void hmp_info_block(Monitor *mon, const QDict *qdict) { monitor_printf(mon, " I/O throttling: bps=%" PRId64 " bps_rd=%" PRId64 " bps_wr=%" PRId64 + " bps_max=%" PRId64 + " bps_rd_max=%" PRId64 + " bps_wr_max=%" PRId64 " iops=%" PRId64 " iops_rd=%" PRId64 - " iops_wr=%" PRId64 "\n", + " iops_wr=%" PRId64 + " iops_max=%" PRId64 + " iops_rd_max=%" PRId64 + " iops_wr_max=%" PRId64 "\n", info->value->inserted->bps, info->value->inserted->bps_rd, info->value->inserted->bps_wr, + info->value->inserted->bps_max, + info->value->inserted->bps_rd_max, + info->value->inserted->bps_wr_max, info->value->inserted->iops, info->value->inserted->iops_rd, - info->value->inserted->iops_wr); + info->value->inserted->iops_wr, + info->value->inserted->iops_max, + info->value->inserted->iops_rd_max, + info->value->inserted->iops_wr_max); + } else { + monitor_printf(mon, " [not inserted]"); } if (verbose) { @@ -1098,7 +1112,19 @@ void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict) qdict_get_int(qdict, "bps_wr"), qdict_get_int(qdict, "iops"), qdict_get_int(qdict, "iops_rd"), - qdict_get_int(qdict, "iops_wr"), &err); + qdict_get_int(qdict, "iops_wr"), + false, /* no burst max via HMP */ + 0, + false, + 0, + false, + 0, + false, + 0, + false, + 0, + false, + 0, &err); hmp_handle_error(mon, &err); } |