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[Qemu-devel] [PATCH V8 13/17] COLO: flush host dirty ram from cache
From: |
Zhang Chen |
Subject: |
[Qemu-devel] [PATCH V8 13/17] COLO: flush host dirty ram from cache |
Date: |
Sun, 3 Jun 2018 13:05:42 +0800 |
From: zhanghailiang <address@hidden>
Don't need to flush all VM's ram from cache, only
flush the dirty pages since last checkpoint
Signed-off-by: Li Zhijian <address@hidden>
Signed-off-by: Zhang Chen <address@hidden>
Signed-off-by: zhanghailiang <address@hidden>
Reviewed-by: Dr. David Alan Gilbert <address@hidden>
---
migration/ram.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/migration/ram.c b/migration/ram.c
index 927436bd12..e34a015785 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -3087,6 +3087,7 @@ int colo_init_ram_cache(void)
}
ram_state = g_new0(RAMState, 1);
ram_state->migration_dirty_pages = 0;
+ memory_global_dirty_log_start();
return 0;
@@ -3107,10 +3108,12 @@ void colo_release_ram_cache(void)
{
RAMBlock *block;
+ memory_global_dirty_log_stop();
QLIST_FOREACH_RCU(block, &ram_list.blocks, next) {
g_free(block->bmap);
block->bmap = NULL;
}
+
rcu_read_lock();
QLIST_FOREACH_RCU(block, &ram_list.blocks, next) {
if (block->colo_cache) {
@@ -3343,6 +3346,13 @@ static void colo_flush_ram_cache(void)
void *src_host;
unsigned long offset = 0;
+ memory_global_dirty_log_sync();
+ rcu_read_lock();
+ RAMBLOCK_FOREACH(block) {
+ migration_bitmap_sync_range(ram_state, block, 0, block->used_length);
+ }
+ rcu_read_unlock();
+
trace_colo_flush_ram_cache_begin(ram_state->migration_dirty_pages);
rcu_read_lock();
block = QLIST_FIRST_RCU(&ram_list.blocks);
--
2.17.GIT
- Re: [Qemu-devel] [PATCH V8 11/17] qapi: Add new command to query colo status, (continued)
- Re: [Qemu-devel] [PATCH V8 11/17] qapi: Add new command to query colo status, Markus Armbruster, 2018/06/07
- Re: [Qemu-devel] [PATCH V8 11/17] qapi: Add new command to query colo status, Zhang Chen, 2018/06/10
- Re: [Qemu-devel] [PATCH V8 11/17] qapi: Add new command to query colo status, Markus Armbruster, 2018/06/11
- Re: [Qemu-devel] [PATCH V8 11/17] qapi: Add new command to query colo status, Zhang Chen, 2018/06/11
- Re: [Qemu-devel] [PATCH V8 11/17] qapi: Add new command to query colo status, Dr. David Alan Gilbert, 2018/06/13
- Re: [Qemu-devel] [PATCH V8 11/17] qapi: Add new command to query colo status, Markus Armbruster, 2018/06/14
- Re: [Qemu-devel] [PATCH V8 11/17] qapi: Add new command to query colo status, Dr. David Alan Gilbert, 2018/06/14
- Re: [Qemu-devel] [PATCH V8 11/17] qapi: Add new command to query colo status, Zhang Chen, 2018/06/19
[Qemu-devel] [PATCH V8 12/17] savevm: split the process of different stages for loadvm/savevm, Zhang Chen, 2018/06/03
[Qemu-devel] [PATCH V8 13/17] COLO: flush host dirty ram from cache,
Zhang Chen <=
[Qemu-devel] [PATCH V8 14/17] filter: Add handle_event method for NetFilterClass, Zhang Chen, 2018/06/03
- Re: [Qemu-devel] [PATCH V8 14/17] filter: Add handle_event method for NetFilterClass, Jason Wang, 2018/06/04
- Re: [Qemu-devel] [PATCH V8 14/17] filter: Add handle_event method for NetFilterClass, Zhang Chen, 2018/06/10
- Re: [Qemu-devel] [PATCH V8 14/17] filter: Add handle_event method for NetFilterClass, Jason Wang, 2018/06/10
- Re: [Qemu-devel] [PATCH V8 14/17] filter: Add handle_event method for NetFilterClass, Zhang Chen, 2018/06/11
- Re: [Qemu-devel] [PATCH V8 14/17] filter: Add handle_event method for NetFilterClass, Jason Wang, 2018/06/11
- Re: [Qemu-devel] [PATCH V8 14/17] filter: Add handle_event method for NetFilterClass, Zhang Chen, 2018/06/11
[Qemu-devel] [PATCH V8 15/17] filter-rewriter: handle checkpoint and failover event, Zhang Chen, 2018/06/03