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[Qemu-devel] [PATCH 11/22] ram: iterate phase
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH 11/22] ram: iterate phase |
Date: |
Fri, 13 Jul 2012 09:23:33 +0200 |
We only need to synchronize the bitmap when the number of dirty pages is low.
Not every time that we call the function.
Signed-off-by: Juan Quintela <address@hidden>
---
arch_init.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch_init.c b/arch_init.c
index 3c38a52..b08c615 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -348,8 +348,6 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
int i;
uint64_t expected_time;
- memory_global_sync_dirty_bitmap(get_system_memory());
-
bytes_transferred_last = bytes_transferred;
bwidth = qemu_get_clock_ns(rt_clock);
@@ -398,7 +396,13 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
DPRINTF("ram_save_live: expected(" PRIu64 ") <= max(" PRIu64 ")?\n",
expected_time, migrate_max_downtime());
- return expected_time <= migrate_max_downtime();
+ if (expected_time <= migrate_max_downtime()) {
+ memory_global_sync_dirty_bitmap(get_system_memory());
+ expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
+
+ return expected_time <= migrate_max_downtime();
+ }
+ return 0;
}
static int ram_save_complete(QEMUFile *f, void *opaque)
--
1.7.10.4
- [Qemu-devel] [PATCH 04/22] savevm: remove SaveLiveStateHandler, (continued)
- [Qemu-devel] [PATCH 04/22] savevm: remove SaveLiveStateHandler, Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 06/22] savevm: introduce is_active method, Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 03/22] savevm: remove SaveSetParamsHandler, Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 09/22] ram: save_live_setup() don't need to sent pages, Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 07/22] savevm: split save_live_setup from save_live_state, Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 02/22] savevm: Live migration handlers register the struct directly, Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 05/22] savevm: Refactor cancel operation in its own operation, Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 08/22] savevm: split save_live into stage2 and stage3, Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 01/22] savevm: Use a struct to pass all handlers, Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 12/22] ram: save_live_setup() we don't need to synchronize the dirty bitmap., Juan Quintela, 2012/07/13
- [Qemu-devel] [PATCH 11/22] ram: iterate phase,
Juan Quintela <=
- [Qemu-devel] [PATCH 13/22] Add migration capabilities, Juan Quintela, 2012/07/13
- Re: [Qemu-devel] [PATCH 13/22] Add migration capabilities, Luiz Capitulino, 2012/07/23
- Re: [Qemu-devel] [PATCH 13/22] Add migration capabilities, Eric Blake, 2012/07/23
- Re: [Qemu-devel] [PATCH 13/22] Add migration capabilities, Orit Wasserman, 2012/07/24
- Re: [Qemu-devel] [PATCH 13/22] Add migration capabilities, Luiz Capitulino, 2012/07/24
- Re: [Qemu-devel] [PATCH 13/22] Add migration capabilities, Orit Wasserman, 2012/07/24
- Re: [Qemu-devel] [PATCH 13/22] Add migration capabilities, Luiz Capitulino, 2012/07/24
- Re: [Qemu-devel] [PATCH 13/22] Add migration capabilities, Orit Wasserman, 2012/07/25
- Re: [Qemu-devel] [PATCH 13/22] Add migration capabilities, Luiz Capitulino, 2012/07/25
- Re: [Qemu-devel] [PATCH 13/22] Add migration capabilities, Orit Wasserman, 2012/07/25