[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 2/4 v3] block: image fragmentation statistics for qe
From: |
Dong Xu Wang |
Subject: |
[Qemu-devel] [PATCH 2/4 v3] block: image fragmentation statistics for qed |
Date: |
Thu, 15 Mar 2012 20:13:32 +0800 |
From: Dong Xu Wang <address@hidden>
Signed-off-by: Dong Xu Wang <address@hidden>
---
block/qed-check.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/block/qed-check.c b/block/qed-check.c
index e4a49ce..94327ff 100644
--- a/block/qed-check.c
+++ b/block/qed-check.c
@@ -68,6 +68,7 @@ static unsigned int qed_check_l2_table(QEDCheck *check,
QEDTable *table)
{
BDRVQEDState *s = check->s;
unsigned int i, num_invalid = 0;
+ uint64_t last_offset = 0;
for (i = 0; i < s->table_nelems; i++) {
uint64_t offset = table->offsets[i];
@@ -76,6 +77,11 @@ static unsigned int qed_check_l2_table(QEDCheck *check,
QEDTable *table)
qed_offset_is_zero_cluster(offset)) {
continue;
}
+ check->result->bfi.allocated_clusters++;
+ if (last_offset && (last_offset + s->header.cluster_size != offset)) {
+ check->result->bfi.fragmented_clusters++;
+ }
+ last_offset = offset;
/* Detect invalid cluster offset */
if (!qed_check_cluster_offset(s, offset)) {
@@ -200,6 +206,9 @@ int qed_check(BDRVQEDState *s, BdrvCheckResult *result,
bool fix)
check.used_clusters = g_malloc0(((check.nclusters + 31) / 32) *
sizeof(check.used_clusters[0]));
+ check.result->bfi.total_clusters =
+ (s->header.image_size + s->header.cluster_size - 1) /
+ s->header.cluster_size;
ret = qed_check_l1_table(&check, s->l1_table);
if (ret == 0) {
/* Only check for leaks if entire image was scanned successfully */
--
1.7.5.4