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authorChuck Lever <cel@netapp.com>2006-03-20 13:44:17 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:17 -0500
commitef759a2e54ed434b2f72b52a14edecd6d4eadf74 (patch)
treeaa495ef4691387839146683dfae0f0084fbe6137 /include/linux/sunrpc
parent262ca07de4d7f1bff20361c1353bb14b3607afb2 (diff)
downloadop-kernel-dev-ef759a2e54ed434b2f72b52a14edecd6d4eadf74.zip
op-kernel-dev-ef759a2e54ed434b2f72b52a14edecd6d4eadf74.tar.gz
SUNRPC: introduce per-task RPC iostats
Account for various things that occur while an RPC task is executed. Separate timers for RPC round trip and RPC execution time show how long RPC requests wait in queue before being sent. Eventually these will be accumulated at xprt_release time in one place where they can be viewed from userland. Test plan: Compile kernel with CONFIG_NFS enabled. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/sunrpc')
-rw-r--r--include/linux/sunrpc/sched.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 6c23f73..45a64ae 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -86,6 +86,12 @@ struct rpc_task {
struct work_struct tk_work; /* Async task work queue */
struct rpc_wait tk_wait; /* RPC wait */
} u;
+
+ unsigned short tk_timeouts; /* maj timeouts */
+ size_t tk_bytes_sent; /* total bytes sent */
+ unsigned long tk_start; /* RPC task init timestamp */
+ long tk_rtt; /* round-trip time (jiffies) */
+
#ifdef RPC_DEBUG
unsigned short tk_pid; /* debugging aid */
#endif
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