Add XBZRLE statistics

[qemu.git] / migration.c

diff --git a/migration.c b/migration.c
index ab5e09d2cb76d72fc24bfb2d69d079b980c5598c..653a3c1a88416d857680278514b87c99ea92f2af 100644 (file)
--- a/migration.c
+++ b/migration.c
@@ -141,6 +141,19 @@ MigrationCapabilityStatusList *qmp_query_migrate_capabilities(Error **errp)
     return head;
 }
 
+static void get_xbzrle_cache_stats(MigrationInfo *info)
+{
+    if (migrate_use_xbzrle()) {
+        info->has_xbzrle_cache = true;
+        info->xbzrle_cache = g_malloc0(sizeof(*info->xbzrle_cache));
+        info->xbzrle_cache->cache_size = migrate_xbzrle_cache_size();
+        info->xbzrle_cache->bytes = xbzrle_mig_bytes_transferred();
+        info->xbzrle_cache->pages = xbzrle_mig_pages_transferred();
+        info->xbzrle_cache->cache_miss = xbzrle_mig_pages_cache_miss();
+        info->xbzrle_cache->overflow = xbzrle_mig_pages_overflow();
+    }
+}
+
 MigrationInfo *qmp_query_migrate(Error **errp)
 {
     MigrationInfo *info = g_malloc0(sizeof(*info));
@@ -172,8 +185,12 @@ MigrationInfo *qmp_query_migrate(Error **errp)
             info->disk->remaining = blk_mig_bytes_remaining();
             info->disk->total = blk_mig_bytes_total();
         }
+
+        get_xbzrle_cache_stats(info);
         break;
     case MIG_STATE_COMPLETED:
+        get_xbzrle_cache_stats(info);
+
         info->has_status = true;
         info->status = g_strdup("completed");