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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 | |
| parent | 9f05d0c3a4f9e8fcb13ed09cc350af45a627809a (diff) | |
| download | qemu-7e114f8cf24a01893226e3a4d22a288125515cfd.zip qemu-7e114f8cf24a01893226e3a4d22a288125515cfd.tar.gz qemu-7e114f8cf24a01893226e3a4d22a288125515cfd.tar.bz2 | |
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>
| -rw-r--r-- | hmp.c | 2 | ||||
| -rw-r--r-- | include/migration/migration.h | 1 | ||||
| -rw-r--r-- | migration.c | 6 | ||||
| -rw-r--r-- | qapi-schema.json | 5 |
4 files changed, 13 insertions, 1 deletions
@@ -169,6 +169,8 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict) if (info->has_ram) { monitor_printf(mon, "transferred ram: %" PRIu64 " kbytes\n", info->ram->transferred >> 10); + monitor_printf(mon, "throughput: %0.2f mbps\n", + info->ram->mbps); monitor_printf(mon, "remaining ram: %" PRIu64 " kbytes\n", info->ram->remaining >> 10); monitor_printf(mon, "total ram: %" PRIu64 " kbytes\n", diff --git a/include/migration/migration.h b/include/migration/migration.h index 0be28a2..535e844 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -40,6 +40,7 @@ struct MigrationState int state; MigrationParams params; + double mbps; int64_t total_time; int64_t downtime; int64_t expected_downtime; diff --git a/migration.c b/migration.c index 058f9e6..441a3b2 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); diff --git a/qapi-schema.json b/qapi-schema.json index 6cc07c2..78da557 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -513,12 +513,15 @@ # @dirty-pages-rate: number of pages dirtied by second by the # guest (since 1.3) # +# @mbps: throughput in megabits/sec. (since 1.6) +# # Since: 0.14.0 ## { 'type': 'MigrationStats', 'data': {'transferred': 'int', 'remaining': 'int', 'total': 'int' , 'duplicate': 'int', 'skipped': 'int', 'normal': 'int', - 'normal-bytes': 'int', 'dirty-pages-rate' : 'int' } } + 'normal-bytes': 'int', 'dirty-pages-rate' : 'int', + 'mbps' : 'number' } } ## # @XBZRLECacheStats |