Re: [Dle-develop] [PATCH -tip tracing/kprobes 0/9] tracing/kprobes, perf: perf probe and kprobe-tracer bugfixes

[Masami H. <mhi...@re...>]

Ingo Molnar wrote:
> 
> * Masami Hiramatsu <mhi...@re...> wrote:
> 
>> How about the following syntax?
>> <adding>
>> perf probe schedule
>> perf probe --add schedule
>>
>> <deleting>
>> perf probe --del schedule
>> perf probe --del all	/* delete all probepoints */
>>
>> So, this doesn't symmetric, but provides simple way to add a probe.
> 
> agreed. For deletion, eventually this:
> 
>   perf probe --del "*"
> 
> should also work - as should other regexp (or glob) matches on a range 
> of existing probes.

Ah, that's a nice idea :-), it allows user to delete a group of
probes, like --del "schedule*".

> plus there should be a perf probe call to output all current probes as 
> perf probe commands - so that it can be saved (and restored).

Sure. 'perf probe --save file' & 'perf probe --restore file' will be
fine for me.

Thank you,
-- 
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division

e-mail: mhi...@re...