linux-kernel - Re: [RFE] perf probe: Support globbing/regex in -a

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Message-ID: <20150409103638.GK5403@kernel.org>
Date:	Thu, 9 Apr 2015 07:36:38 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFE] perf probe: Support globbing/regex in -a

Em Thu, Apr 09, 2015 at 02:27:52PM +0900, Masami Hiramatsu escreveu:
> Hi Arnaldo,
> 
> (2015/04/09 4:48), Arnaldo Carvalho de Melo wrote:
> > Hi Masami,
> > 
> > 	In tools/perf constructors are named <CLASS>__new, and right now I want
> > to know hoe many of each <CLASS> objects are being allocated, so I expected to
> > be able to do:
> > 
> > [root@zoo ~]# perf probe -x ~/bin/perf -a "*__new"
> > Probe point '*__new' not found.
> >   Error: Failed to add events.
> > [root@zoo ~]#
> 
> Actually, I had sent it　:)
> 
> https://lkml.org/lkml/2014/10/31/207
> https://lkml.org/lkml/2014/10/31/213
> 
> I'll update and resend the wildcard support.

Oops, but it was together with that cache thing, could it be sent
separately?

<SNIP>
 
> > Also that -l should output to stdout, so that we can grep it, also it would be nice if it -l worked
> > like in perf list:
> > 
> > [root@zoo ~]# perf probe -l probe_perf:*
> > Semantic error :There is non-digit char in line number.
> >   Error: Command Parse Error.
> 
> Hmm, right. This should be fixed.

Thanks!

- Arnaldo
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