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| author | Chuck Lever <chuck.lever@oracle.com> | 2018-03-27 17:52:27 +0300 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2018-04-03 22:08:13 +0300 |
| commit | 55f5088c22cc83dbc64394abfbf76cd1ff5e7cd0 (patch) | |
| tree | 229d0f82add5b8107c1a9ebe3890d43507a5dcc2 /include/linux/sunrpc | |
| parent | aaba72cd4e793fbf1c04e06dee3d2c3710339678 (diff) | |
| download | linux-55f5088c22cc83dbc64394abfbf76cd1ff5e7cd0.tar.xz | |
svc: Report xprt dequeue latency
Record the time between when a rqstp is enqueued on a transport
and when it is dequeued. This includes how long the rqstp waits on
the queue and how long it takes the kernel scheduler to wake a
nfsd thread to service it.
The svc_xprt_dequeue trace point is altered to include the number
of microseconds between xprt_enqueue and xprt_dequeue.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/linux/sunrpc')
| -rw-r--r-- | include/linux/sunrpc/svc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 3bd7504066e1..dc4c009deec1 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -272,6 +272,7 @@ struct svc_rqst { #define RQ_BUSY (6) /* request is busy */ #define RQ_DATA (7) /* request has data */ unsigned long rq_flags; /* flags field */ + ktime_t rq_qtime; /* enqueue time */ void * rq_argp; /* decoded arguments */ void * rq_resp; /* xdr'd results */ |