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authorJuan Quintela <quintela@redhat.com>2017-03-28 14:59:01 +0200
committerJuan Quintela <quintela@redhat.com>2017-04-21 12:25:36 +0200
commiteac741595890ac3dec3c8addd02bf34cbf8fec25 (patch)
treeefefd70c7a89cab2bc059988d2588da3c3a5966d
parentf664da80fcc9120faecc1afd4b2af31019f0aff9 (diff)
ram: Move bytes_xfer_prev into RAMState
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com>
-rw-r--r--migration/ram.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/migration/ram.c b/migration/ram.c
index 53a547cd94..aeef5637a5 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -157,6 +157,8 @@ struct RAMState {
/* these variables are used for bitmap sync */
/* last time we did a full bitmap_sync */
int64_t time_last_bitmap_sync;
+ /* bytes transferred at start_time */
+ int64_t bytes_xfer_prev;
};
typedef struct RAMState RAMState;
@@ -620,14 +622,13 @@ static void migration_bitmap_sync_range(ram_addr_t start, ram_addr_t length)
}
/* Fix me: there are too many global variables used in migration process. */
-static int64_t bytes_xfer_prev;
static uint64_t xbzrle_cache_miss_prev;
static uint64_t iterations_prev;
static void migration_bitmap_sync_init(RAMState *rs)
{
rs->time_last_bitmap_sync = 0;
- bytes_xfer_prev = 0;
+ rs->bytes_xfer_prev = 0;
num_dirty_pages_period = 0;
xbzrle_cache_miss_prev = 0;
iterations_prev = 0;
@@ -663,8 +664,8 @@ static void migration_bitmap_sync(RAMState *rs)
rs->bitmap_sync_count++;
- if (!bytes_xfer_prev) {
- bytes_xfer_prev = ram_bytes_transferred();
+ if (!rs->bytes_xfer_prev) {
+ rs->bytes_xfer_prev = ram_bytes_transferred();
}
if (!rs->time_last_bitmap_sync) {
@@ -698,13 +699,13 @@ static void migration_bitmap_sync(RAMState *rs)
if (s->dirty_pages_rate &&
(num_dirty_pages_period * TARGET_PAGE_SIZE >
- (bytes_xfer_now - bytes_xfer_prev)/2) &&
+ (bytes_xfer_now - rs->bytes_xfer_prev) / 2) &&
(rs->dirty_rate_high_cnt++ >= 2)) {
trace_migration_throttle();
rs->dirty_rate_high_cnt = 0;
mig_throttle_guest_down();
}
- bytes_xfer_prev = bytes_xfer_now;
+ rs->bytes_xfer_prev = bytes_xfer_now;
}
if (migrate_use_xbzrle()) {