From patchwork Mon Nov 30 17:21:22 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [23/23] block migration: Increase dirty chunk size to 1M Date: Mon, 30 Nov 2009 07:21:22 -0000 From: Jan Kiszka X-Patchwork-Id: 39824 Message-Id: <20091130172121.22889.28291.stgit@mchn012c.ww002.siemens.net> To: Anthony Liguori Cc: qemu-devel@nongnu.org, Liran Schour , Pierre Riteau 4K is too small for efficiently saving and restoring multi-GB block devices. Signed-off-by: Jan Kiszka --- block.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/block.h b/block.h index 3513712..4a8b628 100644 --- a/block.h +++ b/block.h @@ -192,7 +192,7 @@ int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf, int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf, int64_t pos, int size); -#define BDRV_SECTORS_PER_DIRTY_CHUNK 8 +#define BDRV_SECTORS_PER_DIRTY_CHUNK 2048 void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable); int bdrv_get_dirty(BlockDriverState *bs, int64_t sector);