diff options
Diffstat (limited to 'Documentation/trace/events-nmi.rst')
| -rw-r--r-- | Documentation/trace/events-nmi.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/trace/events-nmi.rst b/Documentation/trace/events-nmi.rst index 9e0a7289d80a..22ac1be0ea6f 100644 --- a/Documentation/trace/events-nmi.rst +++ b/Documentation/trace/events-nmi.rst @@ -4,7 +4,7 @@ NMI Trace Events These events normally show up here: - /sys/kernel/debug/tracing/events/nmi + /sys/kernel/tracing/events/nmi nmi_handler @@ -31,13 +31,13 @@ really hogging a lot of CPU time, like a millisecond at a time. Note that the kernel's output is in milliseconds, but the input to the filter is in nanoseconds! You can filter on 'delta_ns':: - cd /sys/kernel/debug/tracing/events/nmi/nmi_handler + cd /sys/kernel/tracing/events/nmi/nmi_handler echo 'handler==0xffffffff81625600 && delta_ns>1000000' > filter echo 1 > enable Your output would then look like:: - $ cat /sys/kernel/debug/tracing/trace_pipe + $ cat /sys/kernel/tracing/trace_pipe <idle>-0 [000] d.h3 505.397558: nmi_handler: perf_event_nmi_handler() delta_ns: 3236765 handled: 1 <idle>-0 [000] d.h3 505.805893: nmi_handler: perf_event_nmi_handler() delta_ns: 3174234 handled: 1 <idle>-0 [000] d.h3 506.158206: nmi_handler: perf_event_nmi_handler() delta_ns: 3084642 handled: 1 |