diff options
Diffstat (limited to 'man/man8/softirqs.8')
| -rw-r--r-- | man/man8/softirqs.8 | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/man/man8/softirqs.8 b/man/man8/softirqs.8 index a9a14414..fa475f78 100644 --- a/man/man8/softirqs.8 +++ b/man/man8/softirqs.8 @@ -2,7 +2,7 @@ .SH NAME softirqs \- Measure soft IRQ (soft interrupt) event time. Uses Linux eBPF/bcc. .SH SYNOPSIS -.B softirqs [\-h] [\-T] [\-N] [\-d] [interval] [count] +.B softirqs [\-h] [\-T] [\-N] [\-C] [\-d] [\-c CPU] [interval] [count] .SH DESCRIPTION This summarizes the time spent servicing soft IRQs (soft interrupts), and can show this time as either totals or histogram distributions. A system-wide @@ -26,16 +26,26 @@ Print usage message. Include timestamps on output. .TP \-N -Output in nanoseconds +Output in nanoseconds. +.TP +\-C +Show the number of soft irq events. .TP \-d -Show IRQ time distribution as histograms +Show IRQ time distribution as histograms. +.TP +\-c CPU +Trace on this CPU only. .SH EXAMPLES .TP Sum soft IRQ event time until Ctrl-C: # .B softirqs .TP +Show the number of soft irq events: +# +.B softirqs \-C +.TP Show soft IRQ event time as histograms: # .B softirqs \-d @@ -47,6 +57,10 @@ Print 1 second summaries, 10 times: 1 second summaries, printed in nanoseconds, with timestamps: # .B softirqs \-NT 1 +.TP +Sum soft IRQ event time on CPU 1 until Ctrl-C: +# +.B softirqs \-c 1 .SH FIELDS .TP SOFTIRQ @@ -88,6 +102,6 @@ Linux .SH STABILITY Unstable - in development. .SH AUTHORS -Brendan Gregg, Sasha Goldshtein +Brendan Gregg, Sasha Goldshtein, Rocky Xing .SH SEE ALSO hardirqs(8) |