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| author | Chuck Lever <cel@netapp.com> | 2006-03-20 13:44:17 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-20 13:44:17 -0500 |
| commit | ef759a2e54ed434b2f72b52a14edecd6d4eadf74 (patch) | |
| tree | aa495ef4691387839146683dfae0f0084fbe6137 /include/linux/sunrpc/sched.h | |
| parent | 262ca07de4d7f1bff20361c1353bb14b3607afb2 (diff) | |
| download | lwn-ef759a2e54ed434b2f72b52a14edecd6d4eadf74.tar.gz lwn-ef759a2e54ed434b2f72b52a14edecd6d4eadf74.zip | |
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/sched.h')
| -rw-r--r-- | include/linux/sunrpc/sched.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index 6c23f73a799a..45a64ae963ee 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 |