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| author | Juan Quintela <quintela@redhat.com> | 2013-02-01 13:22:37 +0100 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2013-02-22 10:12:52 +0100 |
| commit | 90f8ae724a575861f093fbdbfd49a925bcfec327 (patch) | |
| tree | bd76c7c5cfd71e6bbbfd242b6ac4d6c07039e696 | |
| parent | 7161082c8d8cf167c508976887a0a63f4db92b51 (diff) | |
| download | qemu-90f8ae724a575861f093fbdbfd49a925bcfec327.tar.gz | |
migration: calculate expected_downtime
We removed the calculation in commit e4ed1541ac9413eac494a03532e34beaf8a7d1c5
Now we add it back. We need to create dirty_bytes_rate because we
can't include cpu-all.h from migration.c, and there is no other way to
include TARGET_PAGE_SIZE.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
| -rw-r--r-- | arch_init.c | 1 | ||||
| -rw-r--r-- | include/migration/migration.h | 1 | ||||
| -rw-r--r-- | migration.c | 5 |
3 files changed, 7 insertions, 0 deletions
diff --git a/arch_init.c b/arch_init.c index 8da868b988..8daeafaf5c 100644 --- a/arch_init.c +++ b/arch_init.c @@ -414,6 +414,7 @@ static void migration_bitmap_sync(void) if (end_time > start_time + 1000) { s->dirty_pages_rate = num_dirty_pages_period * 1000 / (end_time - start_time); + s->dirty_bytes_rate = s->dirty_pages_rate * TARGET_PAGE_SIZE; start_time = end_time; num_dirty_pages_period = 0; } diff --git a/include/migration/migration.h b/include/migration/migration.h index a8c9639732..d1214097fe 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -51,6 +51,7 @@ 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; bool complete; diff --git a/migration.c b/migration.c index 6649e3a689..11725ae3fc 100644 --- a/migration.c +++ b/migration.c @@ -738,6 +738,11 @@ static void *buffered_file_thread(void *opaque) DPRINTF("transferred %" PRIu64 " time_spent %" PRIu64 " bandwidth %g max_size %" PRId64 "\n", transferred_bytes, time_spent, 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; + } s->bytes_xfer = 0; sleep_time = 0; |