perf_3.16-timechart (1)

There are two variants of perf timechart:

'perf timechart record <command>' to record the system level events
of an arbitrary workload.

'perf timechart' to turn a trace into a Scalable Vector Graphics file,
that can be viewed with popular SVG viewers such as 'Inkscape'.

-o, --output=

Select the output file (default: output.svg)

-i, --input=

Select the input file (default: perf.data unless stdin is a fifo)

-w, --width=

Select the width of the SVG file (default: 1000)

-P, --power-only

Only output the CPU power section of the diagram

-T, --tasks-only

Don\(cqt output processor state transitions

-p, --process

Select the processes to display, by name or PID

--symfs=<directory>

Look for files with symbols relative to this directory.

-n, --proc-num

Print task info for at least given number of tasks.

-t, --topology

Sort CPUs according to topology.

--highlight=<duration_nsecs|task_name>

Highlight tasks (using different color) that run more than given duration or tasks with given name. If number is given it\(cqs interpreted as number of nanoseconds. If non-numeric string is given it\(cqs interpreted as task name.

-P, --power-only

Record only power-related events

-T, --tasks-only

Record only tasks-related events

-g, --callchain

Do call-graph (stack chain/backtrace) recording

$ perf timechart record git pull

[ perf record: Woken up 13 times to write data ]
[ perf record: Captured and wrote 4.253 MB perf.data (~185801 samples) ]

$ perf timechart

Written 10.2 seconds of trace to output.svg.

Record system-wide timechart:

$ perf timechart record

then generate timechart and highlight 'gcc' tasks:

$ perf timechart --highlight gcc

perf_3.16-record(1)