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[Qemu-devel] [PATCH V3 6/6] migration: trace postcopy total downtime
From: |
Alexey Perevalov |
Subject: |
[Qemu-devel] [PATCH V3 6/6] migration: trace postcopy total downtime |
Date: |
Wed, 26 Apr 2017 08:06:20 +0300 |
It's not possible to transmit it back to source host,
due to RP protocol is not expandable.
Signed-off-by: Alexey Perevalov <address@hidden>
---
migration/postcopy-ram.c | 2 ++
migration/trace-events | 1 +
2 files changed, 3 insertions(+)
diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c
index 03c2be7..46a42d4 100644
--- a/migration/postcopy-ram.c
+++ b/migration/postcopy-ram.c
@@ -390,6 +390,8 @@ int postcopy_ram_incoming_cleanup(MigrationIncomingState
*mis)
}
postcopy_state_set(POSTCOPY_INCOMING_END);
+ /* here should be downtime receiving back operation */
+
trace_postcopy_ram_incoming_cleanup_downtime(get_postcopy_total_downtime());
migrate_send_rp_shut(mis, qemu_file_get_error(mis->from_src_file) != 0);
if (mis->postcopy_tmp_page) {
diff --git a/migration/trace-events b/migration/trace-events
index 19e7dc5..25521d4 100644
--- a/migration/trace-events
+++ b/migration/trace-events
@@ -194,6 +194,7 @@ postcopy_ram_incoming_cleanup_closeuf(void) ""
postcopy_ram_incoming_cleanup_entry(void) ""
postcopy_ram_incoming_cleanup_exit(void) ""
postcopy_ram_incoming_cleanup_join(void) ""
+postcopy_ram_incoming_cleanup_downtime(uint64_t total) "total downtime %"
PRIu64
save_xbzrle_page_skipping(void) ""
save_xbzrle_page_overflow(void) ""
ram_save_iterate_big_wait(uint64_t milliconds, int iterations) "big wait: %"
PRIu64 " milliseconds, %d iterations"
--
1.9.1