From: Peter Zijlstra <peterz@infradead.org>
To: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org, vince@deater.net,
eranian@google.com, Arnaldo Carvalho de Melo <acme@infradead.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>
Subject: Re: [PATCH v1 4/5] perf: Introduce address range filtering
Date: Mon, 25 Apr 2016 16:25:06 +0200 [thread overview]
Message-ID: <20160425142506.GJ3430@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <87zisl8vls.fsf@ashishki-desk.ger.corp.intel.com>
On Fri, Apr 22, 2016 at 07:19:11PM +0300, Alexander Shishkin wrote:
> +/*
> + * Address range filtering: limiting the data to certain
> + * instruction address ranges. Filters are ioctl()ed to us from
> + * userspace as ascii strings.
> + *
> + * Filter string format:
> + *
> + * ACTION SOURCE:RANGE_SPEC
> + * where ACTION is one of the
> + * * "filter": limit the trace to this region
> + * * "start": start tracing from this address
> + * * "stop": stop tracing at this address/region;
> + * SOURCE is either "file" or "kernel"
> + * RANGE_SPEC is
> + * * for "kernel": <start address>[/<size>]
> + * * for "file": <start address>[/<size>]@</path/to/object/file>
SOURCE seems entirely redundant
> + *
> + * if <size> is not specified, the range is treated as a single address.
single instruction, right?
next prev parent reply other threads:[~2016-04-25 14:25 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-21 15:16 [PATCH v1 0/5] perf: Introduce address range filtering Alexander Shishkin
2016-04-21 15:16 ` [PATCH v1 1/5] perf: Move set_filter() from behind EVENT_TRACING Alexander Shishkin
2016-04-21 15:17 ` [PATCH v1 2/5] perf/x86/intel/pt: IP filtering register/cpuid bits Alexander Shishkin
2016-04-21 17:48 ` Borislav Petkov
2016-04-21 18:55 ` Thomas Gleixner
2016-04-21 19:17 ` Peter Zijlstra
2016-04-21 20:39 ` Borislav Petkov
2016-04-21 20:37 ` Borislav Petkov
2016-04-22 7:58 ` Thomas Gleixner
2016-04-22 9:34 ` Borislav Petkov
2016-04-21 15:17 ` [PATCH v1 3/5] perf: Extend perf_event_aux_ctx() to optionally iterate through more events Alexander Shishkin
2016-04-21 15:17 ` [PATCH v1 4/5] perf: Introduce address range filtering Alexander Shishkin
2016-04-22 7:45 ` Peter Zijlstra
2016-04-22 16:19 ` Alexander Shishkin
2016-04-25 12:57 ` Peter Zijlstra
2016-04-25 15:41 ` Alexander Shishkin
2016-04-25 13:10 ` Peter Zijlstra
2016-04-25 13:36 ` Peter Zijlstra
2016-04-25 16:02 ` Alexander Shishkin
2016-04-25 13:19 ` Peter Zijlstra
2016-04-25 16:03 ` Alexander Shishkin
2016-04-25 14:14 ` Peter Zijlstra
2016-04-25 16:07 ` Alexander Shishkin
2016-04-25 14:25 ` Peter Zijlstra [this message]
2016-04-25 16:14 ` Alexander Shishkin
2016-04-26 14:35 ` Alexander Shishkin
2016-04-21 15:17 ` [PATCH v1 5/5] perf/x86/intel/pt: Add support for address range filtering in PT Alexander Shishkin
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