From: ChenLiang <chenliang88@huawei.com>
Date: Fri, 4 Apr 2014 09:57:54 +0000 (+0800)
Subject: migration: Add counts of updating the dirty bitmap
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=71411d358000cf90ced348b1ce9142c13b5a93cd;p=qemu.git

migration: Add counts of updating the dirty bitmap

Add counts to log the times of updating the dirty bitmap.

Signed-off-by: ChenLiang <chenliang88@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---

diff --git a/arch_init.c b/arch_init.c
index 0ffecee7fb..c02bce65f6 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -111,6 +111,8 @@ static bool mig_throttle_on;
 static int dirty_rate_high_cnt;
 static void check_guest_throttling(void);
 
+static uint64_t bitmap_sync_count;
+
 /***********************************************************/
 /* ram save/restore */
 
@@ -488,6 +490,8 @@ static void migration_bitmap_sync(void)
     int64_t end_time;
     int64_t bytes_xfer_now;
 
+    bitmap_sync_count++;
+
     if (!bytes_xfer_prev) {
         bytes_xfer_prev = ram_bytes_transferred();
     }
@@ -732,6 +736,7 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
 
     mig_throttle_on = false;
     dirty_rate_high_cnt = 0;
+    bitmap_sync_count = 0;
 
     if (migrate_use_xbzrle()) {
         XBZRLE_cache_lock();