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From: Alexander Shishkin <alexander.shishkin@linux.intel.com>
To: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Thomas Gleixner <tglx@linutronix.de>,
	x86@kernel.org, Borislav Petkov <bp@alien8.de>,
	Ingo Molnar <mingo@redhat.com>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	vince@deater.net, Stephane Eranian <eranian@google.com>,
	Arnaldo Carvalho de Melo <acme@infradead.org>
Subject: Re: [PATCH v2 5/7] perf: Introduce address range filtering
Date: Sat, 30 Apr 2016 07:59:46 +0300	[thread overview]
Message-ID: <87wpnfvghp.fsf@ashishki-desk.ger.corp.intel.com> (raw)
In-Reply-To: <CANLsYkz9YYEe=BGwsWtmdw03dnO9W=XUm+WOUzzqXZ+SWTr8Vw@mail.gmail.com>

Mathieu Poirier <mathieu.poirier@linaro.org> writes:

> I see two things in this work:

[trimmed 700+ lines of context that had no purpose]

> 1) A framework to deal with filters described in user space.
> 2) An implementation for address filtering that will work for both
> Intel and ARM.
>
> This will work well for address filtering (for both PT and CS) but
> what happens when we want to introduce new filters?  This is
> inevitable and some filters will be architecture agnostic while others
> architecture specific.

Haven't we been through this [1] already?

[1] http://marc.info/?l=linux-kernel&m=145013911827358

Regards,
--
Alex

  reply	other threads:[~2016-04-30  4:59 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-27 15:44 [PATCH v2 0/7] " Alexander Shishkin
2016-04-27 15:44 ` [PATCH v2 1/7] perf: Move set_filter() from behind EVENT_TRACING Alexander Shishkin
2016-05-05  9:45   ` [tip:perf/core] perf/core: Move set_filter() out of CONFIG_EVENT_TRACING tip-bot for Alexander Shishkin
2016-04-27 15:44 ` [PATCH v2 2/7] perf/x86/intel/pt: Move MSR bit definitions to a private header Alexander Shishkin
2016-05-05  9:45   ` [tip:perf/core] perf/x86/intel/pt: Move PT specific " tip-bot for Alexander Shishkin
2016-04-27 15:44 ` [PATCH v2 3/7] perf/x86/intel/pt: IP filtering register/cpuid bits Alexander Shishkin
2016-05-05  9:46   ` [tip:perf/core] perf/x86/intel/pt: Add IP filtering register/CPUID bits tip-bot for Alexander Shishkin
2016-04-27 15:44 ` [PATCH v2 4/7] perf: Extend perf_event_aux_ctx() to optionally iterate through more events Alexander Shishkin
2016-05-05  9:46   ` [tip:perf/core] perf/core: " tip-bot for Alexander Shishkin
2016-04-27 15:44 ` [PATCH v2 5/7] perf: Introduce address range filtering Alexander Shishkin
2016-04-28 17:09   ` Peter Zijlstra
2016-04-29 18:12   ` Mathieu Poirier
2016-04-30  4:59     ` Alexander Shishkin [this message]
2016-05-02 14:31       ` Mathieu Poirier
2016-05-03  8:56   ` Peter Zijlstra
2016-05-05  9:46   ` [tip:perf/core] perf/core: " tip-bot for Alexander Shishkin
2016-04-27 15:44 ` [PATCH v2 6/7] perf/x86/intel/pt: Add support for address range filtering in PT Alexander Shishkin
2016-05-05  9:47   ` [tip:perf/core] " tip-bot for Alexander Shishkin
2016-04-27 15:44 ` [PATCH v2 7/7] perf: Let userspace know if pmu supports address filters Alexander Shishkin
2016-05-05  9:47   ` [tip:perf/core] perf/core: Let userspace know if the PMU " tip-bot for Alexander Shishkin

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