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| author | Chuck Lever <chuck.lever@oracle.com> | 2018-03-27 16:51:39 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2018-04-03 21:08:12 +0200 |
| commit | aaba72cd4e793fbf1c04e06dee3d2c3710339678 (patch) | |
| tree | 07c10dd49ba18ca0cee58d1a96d27505d53f1378 /include/trace | |
| parent | sunrpc: Re-purpose trace_svc_process (diff) | |
| download | linux-aaba72cd4e793fbf1c04e06dee3d2c3710339678.tar.xz linux-aaba72cd4e793fbf1c04e06dee3d2c3710339678.zip | |
sunrpc: Report per-RPC execution stats
Introduce a mechanism to report the server-side execution latency of
each RPC. The goal is to enable user space to filter the trace
record for latency outliers, build histograms, etc.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/sunrpc.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 5a8157c04900..1b383f71ccd7 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -705,6 +705,27 @@ TRACE_EVENT(svc_handle_xprt, __entry->len, show_svc_xprt_flags(__entry->flags)) ); +TRACE_EVENT(svc_stats_latency, + TP_PROTO(const struct svc_rqst *rqst), + + TP_ARGS(rqst), + + TP_STRUCT__entry( + __field(u32, xid) + __field(unsigned long, execute) + __string(addr, rqst->rq_xprt->xpt_remotebuf) + ), + + TP_fast_assign( + __entry->xid = be32_to_cpu(rqst->rq_xid); + __entry->execute = ktime_to_us(ktime_sub(ktime_get(), + rqst->rq_stime)); + __assign_str(addr, rqst->rq_xprt->xpt_remotebuf); + ), + + TP_printk("addr=%s xid=0x%08x execute-us=%lu", + __get_str(addr), __entry->xid, __entry->execute) +); DECLARE_EVENT_CLASS(svc_deferred_event, TP_PROTO(struct svc_deferred_req *dr), |