Patchwork [RFC,V5,37/62] qcow2: Add deduplication metrics structures.

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Submitter Benoît Canet
Date Jan. 16, 2013, 3:48 p.m.
Message ID <1358351321-4891-38-git-send-email-benoit@irqsave.net>
Download mbox | patch
Permalink /patch/212837/
State New
Headers show

Comments

Benoît Canet - Jan. 16, 2013, 3:48 p.m.
---
 block/qcow2.h         |    3 ++-
 include/block/block.h |   11 +++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

Patch

diff --git a/block/qcow2.h b/block/qcow2.h
index 29267a9..0729ff2 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -237,9 +237,10 @@  typedef struct BDRVQcowState {
     int32_t dedup_table_size;
     GTree *dedup_tree_by_hash;
     GTree *dedup_tree_by_sect;
+    CoMutex dedup_lock;
+    BlockDeduplicationMetrics dedup_metrics;
 
     CoMutex lock;
-    CoMutex dedup_lock;
 
     uint32_t crypt_method; /* current crypt method, 0 if no key yet */
     uint32_t crypt_method_header;
diff --git a/include/block/block.h b/include/block/block.h
index b81d200..16e1cf1 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -12,6 +12,17 @@ 
 typedef struct BlockDriver BlockDriver;
 typedef struct BlockJob BlockJob;
 
+typedef struct {
+    uint64_t deduplicated_clusters;
+    uint64_t non_deduplicated_clusters;
+    uint64_t missing_data_reads; /* reads used to complete partials clusters */
+    uint64_t ram_hash_creations;     /* RAM based lookup */
+    uint64_t ram_hash_deletions;     /* RAM based lookup */
+    uint64_t ram_usage;              /* RAM usage in bytes */
+    uint64_t deleted_clusters;       /* number of deleted clusters */
+    uint64_t refcount_overflows;     /* number of refcount overflows */
+} BlockDeduplicationMetrics;
+
 typedef struct BlockDriverInfo {
     /* in bytes, 0 if irrelevant */
     int cluster_size;