NAME

       lttng-irqfreq - LTTng analyses IRQ frequency

DESCRIPTION

       usage: lttng-irqfreq [-h] [-r REFRESH] [--gmt] [--skip-validation]

       [--begin BEGIN] [--end END] [--period-begin PERIOD_BEGIN]
              [--period-end  PERIOD_END]  [--period-begin-key PERIOD_BEGIN_KEY] [--period-end-key
              PERIOD_END_KEY]  [--period-key-value  PERIOD_KEY_VALUE]  [--cpu  CPU]  [--timerange
              TIMERANGE] [-V] [--no-progress] [--min MIN] [--max MAX] [--freq] [--freq-resolution
              FREQ_RESOLUTION] [--freq-uniform] [--freq-series]  [--log]  [--stats]  [--irq  IRQ]
              [--softirq SOFTIRQ] <path/to/trace>

       The irq command.

   positional arguments:
       <path/to/trace>
              trace path

   optional arguments:
       -h, --help
              show this help message and exit

       -r REFRESH, --refresh REFRESH
              Refresh period, with optional units suffix (default units: s)

       --gmt  Manipulate timestamps based on GMT instead of local time

       --skip-validation
              Skip the trace validation

       --begin BEGIN
              start time: hh:mm:ss[.nnnnnnnnn]

       --end END
              end time: hh:mm:ss[.nnnnnnnnn]

       --period-begin PERIOD_BEGIN
              Analysis period start marker event name

       --period-end PERIOD_END
              Analysis period end marker event name (requires --period-begin)

       --period-begin-key PERIOD_BEGIN_KEY
              Optional, list of event field names used to match period markers (default: cpu_id)

       --period-end-key PERIOD_END_KEY
              Optional, list of event field names used to match period marker. If none specified,
              use the same --period-begin-key

       --period-key-value PERIOD_KEY_VALUE
              Optional, define a fixed key  value  to  which  a  period  must  correspond  to  be
              considered.

       --cpu CPU
              Filter the results only for this list of CPU IDs

       --timerange TIMERANGE
              time range: [begin,end]

       -V, --version
              show program's version number and exit

       --no-progress
              Don't display the progress bar

       --min MIN
              Filter out durations shorter than min usec

       --max MAX
              Filter out durations longer than max usec

       --freq Output the frequency distribution of handler durations

       --freq-resolution FREQ_RESOLUTION
              Frequency distribution resolution (default 20)

       --freq-uniform
              Use a uniform resolution across distributions

       --freq-series
              Consolidate frequency distribution histogram as a single one

       --log  Output the IRQs in chronological order

       --stats
              Output IRQ statistics

       --irq IRQ
              Output results only for the list of IRQ

       --softirq SOFTIRQ
              Output results only for the list of SoftIRQ