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authorChuck Lever <chuck.lever@oracle.com>2017-08-22 11:19:35 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2017-08-22 16:19:32 -0400
commit67af6f652f9ccad772c48f7c959ad5aa23bdfb40 (patch)
treef89dddd9a5e9c95054aa1cbf75c9a416069ba1e0 /net/sunrpc
parent6748b0caf82101f1f01208e48f5c4fd3ce76d562 (diff)
xprtrdma: Re-arrange struct rx_stats
To reduce false cacheline sharing, separate counters that are likely to be accessed in the Call path from those accessed in the Reply path. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/xprtrdma/xprt_rdma.h13
1 files changed, 8 insertions, 5 deletions
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index 546c26405596..45dab2475c99 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -441,24 +441,27 @@ struct rpcrdma_create_data_internal {
* Statistics for RPCRDMA
*/
struct rpcrdma_stats {
+ /* accessed when sending a call */
unsigned long read_chunk_count;
unsigned long write_chunk_count;
unsigned long reply_chunk_count;
-
unsigned long long total_rdma_request;
- unsigned long long total_rdma_reply;
+ /* rarely accessed error counters */
unsigned long long pullup_copy_count;
- unsigned long long fixup_copy_count;
unsigned long hardway_register_count;
unsigned long failed_marshal_count;
unsigned long bad_reply_count;
- unsigned long nomsg_call_count;
- unsigned long bcall_count;
unsigned long mrs_recovered;
unsigned long mrs_orphaned;
unsigned long mrs_allocated;
+
+ /* accessed when receiving a reply */
+ unsigned long long total_rdma_reply;
+ unsigned long long fixup_copy_count;
unsigned long local_inv_needed;
+ unsigned long nomsg_call_count;
+ unsigned long bcall_count;
};
/*