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| author | Michael R. Hines <mrhines@us.ibm.com> | 2013-06-25 21:35:30 -0400 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2013-06-27 02:38:36 +0200 |
| commit | 7e114f8cf24a01893226e3a4d22a288125515cfd (patch) | |
| tree | b64f77210b6475ef94e4769329aeca6a307bcedd /migration.c | |
| parent | 9f05d0c3a4f9e8fcb13ed09cc350af45a627809a (diff) | |
| download | qemu-7e114f8cf24a01893226e3a4d22a288125515cfd.tar.gz | |
rdma: export throughput w/ MigrationStats QMP
This exposes throughput (in megabits/sec) through QMP.
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Chegu Vinod <chegu_vinod@hp.com>
Tested-by: Chegu Vinod <chegu_vinod@hp.com>
Tested-by: Michael R. Hines <mrhines@us.ibm.com>
Signed-off-by: Michael R. Hines <mrhines@us.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration.c')
| -rw-r--r-- | migration.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/migration.c b/migration.c index 058f9e69f4..441a3b23f9 100644 --- a/migration.c +++ b/migration.c @@ -66,6 +66,7 @@ MigrationState *migrate_get_current(void) .state = MIG_STATE_SETUP, .bandwidth_limit = MAX_THROTTLE, .xbzrle_cache_size = DEFAULT_MIGRATE_CACHE_SIZE, + .mbps = -1, }; return ¤t_migration; @@ -201,6 +202,7 @@ MigrationInfo *qmp_query_migrate(Error **errp) info->ram->normal = norm_mig_pages_transferred(); info->ram->normal_bytes = norm_mig_bytes_transferred(); info->ram->dirty_pages_rate = s->dirty_pages_rate; + info->ram->mbps = s->mbps; if (blk_mig_active()) { info->has_disk = true; @@ -230,6 +232,7 @@ MigrationInfo *qmp_query_migrate(Error **errp) info->ram->skipped = skipped_mig_pages_transferred(); info->ram->normal = norm_mig_pages_transferred(); info->ram->normal_bytes = norm_mig_bytes_transferred(); + info->ram->mbps = s->mbps; break; case MIG_STATE_ERROR: info->has_status = true; @@ -543,6 +546,9 @@ static void *migration_thread(void *opaque) double bandwidth = transferred_bytes / time_spent; max_size = bandwidth * migrate_max_downtime() / 1000000; + s->mbps = time_spent ? (((double) transferred_bytes * 8.0) / + ((double) time_spent / 1000.0)) / 1000.0 / 1000.0 : -1; + DPRINTF("transferred %" PRIu64 " time_spent %" PRIu64 " bandwidth %g max_size %" PRId64 "\n", transferred_bytes, time_spent, bandwidth, max_size); |