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Re: [PATCH -tip 00/14] perf-probe updates
- From: Ingo Molnar <mingo at elte dot hu>
- To: Masami Hiramatsu <mhiramat at redhat dot com>
- Cc: Frederic Weisbecker <fweisbec at gmail dot com>, lkml <linux-kernel at vger dot kernel dot org>, Paul Mackerras <paulus at samba dot org>, Arnaldo Carvalho de Melo <acme at redhat dot com>, Steven Rostedt <rostedt at goodmis dot org>, Jim Keniston <jkenisto at us dot ibm dot com>, Ananth N Mavinakayanahalli <ananth at in dot ibm dot com>, Christoph Hellwig <hch at infradead dot org>, "Frank Ch. Eigler" <fche at redhat dot com>, Jason Baron <jbaron at redhat dot com>, "K.Prasad" <prasad at linux dot vnet dot ibm dot com>, Peter Zijlstra <peterz at infradead dot org>, Srikar Dronamraju <srikar at linux dot vnet dot ibm dot com>, systemtap <systemtap at sources dot redhat dot com>, DLE <dle-develop at lists dot sourceforge dot net>
- Date: Tue, 15 Dec 2009 20:22:58 +0100
- Subject: Re: [PATCH -tip 00/14] perf-probe updates
- References: <20091215153106.17436.66584.stgit@dhcp-100-2-132.bos.redhat.com>
* Masami Hiramatsu <mhiramat@redhat.com> wrote:
> Hi Ingo,
>
> Here are several bugfixes and updates of perf-probe.
> This updates includes below features.
>
> - Support checking kernel Build-ID
> Comparing vmlinux build-id and running kernel build-id
> can prevent user to set incorrect probes by using
> old/incorrect vmlinux.
>
> - Symbol search by libelf/kallsyms
> This allows to check probed symbol exists in the kernel
> even if debuginfo is not available.
>
> - Support glob expression with --del option (like --del '*')
> This allows users to use wildcard for specifying
> deleting events.
>
> - Reject adding same-name events
> Rejecting to add event which name already exists.
>
> - Support event name specifying for new events
> This allows users to set their own name to new
> events. Currently setting group name is not
> allowed, because it will conflict with other
> tracepoints and kmem event.
>
> I think the glob expression (wildcard matching) can be
> applied to other perf tools for choosing events, and it
> will give user better experience :-)
Very nice improvements! :)
Applied, thanks!
Ingo