On Fri, Jun 24, 2016 at 11:22:05AM +0000, Wang Nan wrote:
> After converting perf.data to CTF, we lost pid-tid-comm mapping. Which
> makes inconvience. For example, in perf script output we know which
> process issue an event like this:
>
> compiz 19361 [001] 3275709.313929: raw_syscalls:sys_exit: NR 7 = 0
>
> After converting to CTF, we only get this:
>
> [3275709.313929985] (+0.110646118) raw_syscalls:sys_exit: { cpu_id = 1 }, {
> perf_ip = 0xFFFFFFFF8107B2E8, perf_tid = 19361, perf_pid = 19361, perf_id =
> 18920, perf_period = 1, common_type = 16, common_flags = 0,
> common_preempt_count = 1, common_pid = 19361, id = 7, ret = 0 }
>
> Currently, if we want to find the name and parent of a process, we
> have to collect 'sched:sched_switch' event.
>
> This patch set adds a '--all' option to 'perf convert', converts comm,
> fork and exit events to CTF output. CTF user now can track the mapping
> by their own.
>
> v1 -> v2: Report number of sample and non-sample events when finish.
> rename opts.non_sample to opts.all.
>
> Wang Nan (7):
> perf ctf: Add value_set_string() helper
> perf ctf: Pass convert options through opts structure
> perf ctf: Add 'all' option
> perf ctf: Prepare collect non-sample events
> perf ctf: Generate comm event to CTF output
> perf ctf: Add '--all' option for 'perf data convert'
> perf ctf: Generate fork and exit events to CTF output
Acked-by: Jiri Olsa <jo...@kernel.org>
thanks,
jirka
