From 7ee12dafe96a86dfa96af38cea1289305e429a55 Mon Sep 17 00:00:00 2001 From: Alberto Garcia Date: Wed, 28 Oct 2015 17:33:03 +0200 Subject: block: Add statistics for failed and invalid I/O operations This patch adds the block_acct_failed() and block_acct_invalid() functions to allow keeping track of failed and invalid I/O operations. The number of failed and invalid operations is exposed in BlockDeviceStats. We don't keep track of the time spent on invalid operations because they are cancelled immediately when they are started. Signed-off-by: Alberto Garcia Message-id: a7256ccb883a86356b1c6c46b5a29ed5448546a5.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- include/block/accounting.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/block') diff --git a/include/block/accounting.h b/include/block/accounting.h index 4b2b999bd0..b50e3cc8d2 100644 --- a/include/block/accounting.h +++ b/include/block/accounting.h @@ -38,6 +38,8 @@ enum BlockAcctType { typedef struct BlockAcctStats { uint64_t nr_bytes[BLOCK_MAX_IOTYPE]; uint64_t nr_ops[BLOCK_MAX_IOTYPE]; + uint64_t invalid_ops[BLOCK_MAX_IOTYPE]; + uint64_t failed_ops[BLOCK_MAX_IOTYPE]; uint64_t total_time_ns[BLOCK_MAX_IOTYPE]; uint64_t merged[BLOCK_MAX_IOTYPE]; int64_t last_access_time_ns; @@ -52,6 +54,8 @@ typedef struct BlockAcctCookie { void block_acct_start(BlockAcctStats *stats, BlockAcctCookie *cookie, int64_t bytes, enum BlockAcctType type); void block_acct_done(BlockAcctStats *stats, BlockAcctCookie *cookie); +void block_acct_failed(BlockAcctStats *stats, BlockAcctCookie *cookie); +void block_acct_invalid(BlockAcctStats *stats, enum BlockAcctType type); void block_acct_merge_done(BlockAcctStats *stats, enum BlockAcctType type, int num_requests); int64_t block_acct_idle_time_ns(BlockAcctStats *stats); -- cgit v1.2.3-55-g7522