From: Andi Kleen <ak@linux.intel.com>
To: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 10/11] perf intel-pt: Add support for decoding FUP/TIP only
Date: Thu, 9 Jul 2020 10:55:06 -0700 [thread overview]
Message-ID: <20200709175506.GD1126680@tassilo.jf.intel.com> (raw)
In-Reply-To: <20200709173628.5613-11-adrian.hunter@intel.com>
On Thu, Jul 09, 2020 at 08:36:27PM +0300, Adrian Hunter wrote:
> +The q option does not decode TNT packets, and does not walk object code, but
> +gets the ip from FUP and TIP packets. The q option can be used with the b and i
> +options but the period is not used. The q option decodes more quickly, but is
> +useful only if the control flow of interest is represented or indicated by FUP,
> +TIP, TIP.PGE, or TIP.PGD packets. However the q option could be used to find
> +time ranges that could then be decoded fully using the --time option.
Ah ok the documentation is here. Ignore previous suggestion.
Can you describe the effect in a high level without referring to packet names?
The user may not be familar with them.
So two qs will be PSB only decoding I hope?
-Andi
next prev parent reply other threads:[~2020-07-09 17:55 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-09 17:36 [PATCH 00/11] perf intel-pt: Add support for decoding FUP/TIP only Adrian Hunter
2020-07-09 17:36 ` [PATCH 01/11] perf intel-pt: Fix FUP packet state Adrian Hunter
2020-07-09 17:36 ` [PATCH 02/11] perf intel-pt: Fix duplicate branch after CBR Adrian Hunter
2020-07-09 17:36 ` [PATCH 03/11] perf tools: Improve aux_output not supported error Adrian Hunter
2020-07-09 17:36 ` [PATCH 04/11] perf auxtrace: Add optional error flags to the itrace 'e' option Adrian Hunter
2020-07-09 17:36 ` [PATCH 05/11] perf intel-pt: Use itrace error flags to suppress some errors Adrian Hunter
2020-07-09 17:50 ` Andi Kleen
2020-07-09 18:13 ` Adrian Hunter
2020-07-09 18:22 ` Adrian Hunter
2020-07-20 22:18 ` Andi Kleen
2020-07-09 17:36 ` [PATCH 06/11] perf auxtrace: Add optional log flags to the itrace 'd' option Adrian Hunter
2020-07-09 17:51 ` Andi Kleen
2020-07-09 17:36 ` [PATCH 07/11] perf intel-pt: Use itrace debug log flags to suppress some messages Adrian Hunter
2020-07-09 17:36 ` [PATCH 08/11] perf intel-pt: Time filter logged perf events Adrian Hunter
2020-07-09 17:36 ` [PATCH 09/11] perf auxtrace: Add itrace 'q' option for quicker, less detailed decoding Adrian Hunter
2020-07-09 17:52 ` Andi Kleen
2020-07-09 17:36 ` [PATCH 10/11] perf intel-pt: Add support for decoding FUP/TIP only Adrian Hunter
2020-07-09 17:55 ` Andi Kleen [this message]
2020-07-09 17:36 ` [PATCH 11/11] perf intel-pt: Add support for decoding PSB+ only Adrian Hunter
2020-07-09 17:59 ` Andi Kleen
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