From abbf1d7f9bb43ba5fac7a9c27b67d9a78749e67a Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Tue, 14 Mar 2017 18:10:16 +0100 Subject: [PATCH] ram: Remove dirty_bytes_rate It can be recalculated from dirty_pages_rate. Signed-off-by: Juan Quintela Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Peter Xu -- Dave was the one that reviewed it O:-) --- include/migration/migration.h | 1 - migration/migration.c | 6 +++--- migration/ram.c | 1 - 3 files changed, 3 insertions(+), 5 deletions(-) diff --git a/include/migration/migration.h b/include/migration/migration.h index 2f9c9736f9..e185d13c9c 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -155,7 +155,6 @@ struct MigrationState int64_t downtime; int64_t expected_downtime; int64_t dirty_pages_rate; - int64_t dirty_bytes_rate; bool enabled_capabilities[MIGRATION_CAPABILITY__MAX]; int64_t xbzrle_cache_size; int64_t setup_time; diff --git a/migration/migration.c b/migration/migration.c index 94647a81e3..dcf9b944cc 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1118,7 +1118,6 @@ MigrationState *migrate_init(const MigrationParams *params) s->downtime = 0; s->expected_downtime = 0; s->dirty_pages_rate = 0; - s->dirty_bytes_rate = 0; s->setup_time = 0; s->start_postcopy = false; s->postcopy_after_devices = false; @@ -2008,8 +2007,9 @@ static void *migration_thread(void *opaque) bandwidth, max_size); /* if we haven't sent anything, we don't want to recalculate 10000 is a small enough number for our purposes */ - if (s->dirty_bytes_rate && transferred_bytes > 10000) { - s->expected_downtime = s->dirty_bytes_rate / bandwidth; + if (s->dirty_pages_rate && transferred_bytes > 10000) { + s->expected_downtime = s->dirty_pages_rate * + (1ul << qemu_target_page_bits()) / bandwidth; } qemu_file_reset_rate_limit(s->to_dst_file); diff --git a/migration/ram.c b/migration/ram.c index 1580617b38..ef4f508b6c 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -728,7 +728,6 @@ static void migration_bitmap_sync(RAMState *rs) } s->dirty_pages_rate = rs->num_dirty_pages_period * 1000 / (end_time - rs->time_last_bitmap_sync); - s->dirty_bytes_rate = s->dirty_pages_rate * TARGET_PAGE_SIZE; rs->time_last_bitmap_sync = end_time; rs->num_dirty_pages_period = 0; }