You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
4.1 KiB
106 lines
4.1 KiB
From 886b511e0a225b1c4428c646534d7bcc65bd9e2a Mon Sep 17 00:00:00 2001
|
|
From: Juan Quintela <quintela@redhat.com>
|
|
Date: Tue, 11 Apr 2023 18:02:34 +0200
|
|
Subject: [PATCH 14/56] migration: Make dirty_sync_count atomic
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
RH-Author: Peter Xu <peterx@redhat.com>
|
|
RH-MergeRequest: 162: migration: Pretty failures for postcopy on unsupported memory types
|
|
RH-Bugzilla: 2057267
|
|
RH-Acked-by: Leonardo Brás <leobras@redhat.com>
|
|
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
|
|
RH-Acked-by: quintela1 <quintela@redhat.com>
|
|
RH-Commit: [13/50] ef3ae8cdd960e944ba9e73a53d54c9a5a55bb1ce (peterx/qemu-kvm)
|
|
|
|
Signed-off-by: Juan Quintela <quintela@redhat.com>
|
|
Reviewed-by: Peter Xu <peterx@redhat.com>
|
|
(cherry picked from commit 536b5a4e56ec67c958f46e7d46cbd5ac34e5a239)
|
|
Signed-off-by: Peter Xu <peterx@redhat.com>
|
|
---
|
|
migration/migration.c | 3 ++-
|
|
migration/ram.c | 13 +++++++------
|
|
migration/ram.h | 2 +-
|
|
3 files changed, 10 insertions(+), 8 deletions(-)
|
|
|
|
diff --git a/migration/migration.c b/migration/migration.c
|
|
index 8f2847d298..8fca751050 100644
|
|
--- a/migration/migration.c
|
|
+++ b/migration/migration.c
|
|
@@ -1148,7 +1148,8 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s)
|
|
info->ram->normal = stat64_get(&ram_counters.normal);
|
|
info->ram->normal_bytes = info->ram->normal * page_size;
|
|
info->ram->mbps = s->mbps;
|
|
- info->ram->dirty_sync_count = ram_counters.dirty_sync_count;
|
|
+ info->ram->dirty_sync_count =
|
|
+ stat64_get(&ram_counters.dirty_sync_count);
|
|
info->ram->dirty_sync_missed_zero_copy =
|
|
stat64_get(&ram_counters.dirty_sync_missed_zero_copy);
|
|
info->ram->postcopy_requests = ram_counters.postcopy_requests;
|
|
diff --git a/migration/ram.c b/migration/ram.c
|
|
index b1722b6071..3c13136559 100644
|
|
--- a/migration/ram.c
|
|
+++ b/migration/ram.c
|
|
@@ -764,7 +764,7 @@ static void xbzrle_cache_zero_page(RAMState *rs, ram_addr_t current_addr)
|
|
/* We don't care if this fails to allocate a new cache page
|
|
* as long as it updated an old one */
|
|
cache_insert(XBZRLE.cache, current_addr, XBZRLE.zero_target_page,
|
|
- ram_counters.dirty_sync_count);
|
|
+ stat64_get(&ram_counters.dirty_sync_count));
|
|
}
|
|
|
|
#define ENCODING_FLAG_XBZRLE 0x1
|
|
@@ -790,13 +790,13 @@ static int save_xbzrle_page(RAMState *rs, PageSearchStatus *pss,
|
|
int encoded_len = 0, bytes_xbzrle;
|
|
uint8_t *prev_cached_page;
|
|
QEMUFile *file = pss->pss_channel;
|
|
+ uint64_t generation = stat64_get(&ram_counters.dirty_sync_count);
|
|
|
|
- if (!cache_is_cached(XBZRLE.cache, current_addr,
|
|
- ram_counters.dirty_sync_count)) {
|
|
+ if (!cache_is_cached(XBZRLE.cache, current_addr, generation)) {
|
|
xbzrle_counters.cache_miss++;
|
|
if (!rs->last_stage) {
|
|
if (cache_insert(XBZRLE.cache, current_addr, *current_data,
|
|
- ram_counters.dirty_sync_count) == -1) {
|
|
+ generation) == -1) {
|
|
return -1;
|
|
} else {
|
|
/* update *current_data when the page has been
|
|
@@ -1209,7 +1209,7 @@ static void migration_bitmap_sync(RAMState *rs)
|
|
RAMBlock *block;
|
|
int64_t end_time;
|
|
|
|
- ram_counters.dirty_sync_count++;
|
|
+ stat64_add(&ram_counters.dirty_sync_count, 1);
|
|
|
|
if (!rs->time_last_bitmap_sync) {
|
|
rs->time_last_bitmap_sync = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
|
|
@@ -1246,7 +1246,8 @@ static void migration_bitmap_sync(RAMState *rs)
|
|
rs->bytes_xfer_prev = stat64_get(&ram_counters.transferred);
|
|
}
|
|
if (migrate_use_events()) {
|
|
- qapi_event_send_migration_pass(ram_counters.dirty_sync_count);
|
|
+ uint64_t generation = stat64_get(&ram_counters.dirty_sync_count);
|
|
+ qapi_event_send_migration_pass(generation);
|
|
}
|
|
}
|
|
|
|
diff --git a/migration/ram.h b/migration/ram.h
|
|
index bb52632424..8c0d07c43a 100644
|
|
--- a/migration/ram.h
|
|
+++ b/migration/ram.h
|
|
@@ -42,7 +42,7 @@
|
|
*/
|
|
typedef struct {
|
|
int64_t dirty_pages_rate;
|
|
- int64_t dirty_sync_count;
|
|
+ Stat64 dirty_sync_count;
|
|
Stat64 dirty_sync_missed_zero_copy;
|
|
Stat64 downtime_bytes;
|
|
Stat64 duplicate;
|
|
--
|
|
2.39.1
|
|
|