From f8111c241afa75544032dcfa23df0699c91f9866 Mon Sep 17 00:00:00 2001 From: Dong Xu Wang Date: Thu, 15 Mar 2012 20:13:31 +0800 Subject: [PATCH] qemu-img: add image fragmentation statistics Discussion can be found at: http://patchwork.ozlabs.org/patch/128730/ This patch add image fragmentation statistics while using qemu-img check. Signed-off-by: Dong Xu Wang Reviewed-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- block.h | 7 +++++++ qemu-img.c | 9 ++++++++- 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/block.h b/block.h index c51ab16..ea12f5d 100644 --- a/block.h +++ b/block.h @@ -17,6 +17,12 @@ typedef struct BlockDriverInfo { int64_t vm_state_offset; } BlockDriverInfo; +typedef struct BlockFragInfo { + uint64_t allocated_clusters; + uint64_t total_clusters; + uint64_t fragmented_clusters; +} BlockFragInfo; + typedef struct QEMUSnapshotInfo { char id_str[128]; /* unique snapshot id */ /* the following fields are informative. They are not needed for @@ -175,6 +181,7 @@ typedef struct BdrvCheckResult { int corruptions; int leaks; int check_errors; + BlockFragInfo bfi; } BdrvCheckResult; int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res); diff --git a/qemu-img.c b/qemu-img.c index 0e48b35..4de48ba 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -428,6 +428,13 @@ static int img_check(int argc, char **argv) } } + if (result.bfi.total_clusters != 0 && result.bfi.allocated_clusters != 0) { + printf("%" PRId64 "/%" PRId64 "= %0.2f%% allocated, %0.2f%% fragmented\n", + result.bfi.allocated_clusters, result.bfi.total_clusters, + result.bfi.allocated_clusters * 100.0 / result.bfi.total_clusters, + result.bfi.fragmented_clusters * 100.0 / result.bfi.allocated_clusters); + } + bdrv_delete(bs); if (ret < 0 || result.check_errors) { @@ -716,7 +723,7 @@ static int img_convert(int argc, char **argv) ret = -1; goto out; } - + qemu_progress_init(progress, 2.0); qemu_progress_print(0, 100); -- 2.7.4