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[PULL 04/18] migration: Create migrate_downtime_limit() function
From: |
Juan Quintela |
Subject: |
[PULL 04/18] migration: Create migrate_downtime_limit() function |
Date: |
Thu, 27 Apr 2023 17:22:20 +0200 |
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
---
migration/migration.c | 4 ++--
migration/options.c | 7 +++++++
migration/options.h | 1 +
3 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index 45fc5be93a..ee8e9416ce 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -2737,7 +2737,7 @@ static void migration_update_counters(MigrationState *s,
transferred = current_bytes - s->iteration_initial_bytes;
time_spent = current_time - s->iteration_start_time;
bandwidth = (double)transferred / time_spent;
- s->threshold_size = bandwidth * s->parameters.downtime_limit;
+ s->threshold_size = bandwidth * migrate_downtime_limit();
s->mbps = (((double) transferred * 8.0) /
((double) time_spent / 1000.0)) / 1000.0 / 1000.0;
@@ -3244,7 +3244,7 @@ void migrate_fd_connect(MigrationState *s, Error
*error_in)
*/
migrate_error_free(s);
- s->expected_downtime = s->parameters.downtime_limit;
+ s->expected_downtime = migrate_downtime_limit();
if (resume) {
assert(s->cleanup_bh);
} else {
diff --git a/migration/options.c b/migration/options.c
index 0b1b56e68f..f4ffe99603 100644
--- a/migration/options.c
+++ b/migration/options.c
@@ -518,6 +518,13 @@ int migrate_decompress_threads(void)
return s->parameters.decompress_threads;
}
+uint64_t migrate_downtime_limit(void)
+{
+ MigrationState *s = migrate_get_current();
+
+ return s->parameters.downtime_limit;
+}
+
uint8_t migrate_max_cpu_throttle(void)
{
MigrationState *s = migrate_get_current();
diff --git a/migration/options.h b/migration/options.h
index 86bcbb738c..e982103c0d 100644
--- a/migration/options.h
+++ b/migration/options.h
@@ -71,6 +71,7 @@ uint8_t migrate_cpu_throttle_increment(void);
uint8_t migrate_cpu_throttle_initial(void);
bool migrate_cpu_throttle_tailslow(void);
int migrate_decompress_threads(void);
+uint64_t migrate_downtime_limit(void);
uint8_t migrate_max_cpu_throttle(void);
uint64_t migrate_max_bandwidth(void);
int64_t migrate_max_postcopy_bandwidth(void);
--
2.40.0
- [PULL 00/18] Migration 20230427 patches, Juan Quintela, 2023/04/27
- [PULL 04/18] migration: Create migrate_downtime_limit() function,
Juan Quintela <=
- [PULL 10/18] migration: Create migrate_tls_hostname() function, Juan Quintela, 2023/04/27
- [PULL 06/18] migration: Move block_cleanup_parameters() to options.c, Juan Quintela, 2023/04/27
- [PULL 01/18] multifd: Fix the number of channels ready, Juan Quintela, 2023/04/27
- [PULL 17/18] migration: Make dirty_pages_rate atomic, Juan Quintela, 2023/04/27
- [PULL 14/18] multifd: Protect multifd_send_sync_main() calls, Juan Quintela, 2023/04/27
- [PULL 13/18] multifd: Create property multifd-flush-after-each-section, Juan Quintela, 2023/04/27
- [PULL 16/18] stat64: Add stat64_set() operation, Juan Quintela, 2023/04/27
- [PULL 18/18] migration: Make dirty_bytes_last_sync atomic, Juan Quintela, 2023/04/27
- [PULL 05/18] migration: Move migrate_set_block_incremental() to options.c, Juan Quintela, 2023/04/27
- [PULL 07/18] migration: Remove MigrationState from block_cleanup_parameters(), Juan Quintela, 2023/04/27