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Groups > linux.kernel > #1645429
| From | Adrian Hunter <adrian.hunter@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 03/37] perf intel-pt: Add documentation for new config terms |
| Date | 2017-05-19 11:10 +0200 |
| Message-ID | <tIM55-8nS-51@gated-at.bofh.it> (permalink) |
| References | <tIM53-8nS-3@gated-at.bofh.it> |
| Organization | Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki |
Add documentation for new config terms. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> --- tools/perf/Documentation/intel-pt.txt | 36 +++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/tools/perf/Documentation/intel-pt.txt b/tools/perf/Documentation/intel-pt.txt index b0b3007d3c9c..d157dee7a4ec 100644 --- a/tools/perf/Documentation/intel-pt.txt +++ b/tools/perf/Documentation/intel-pt.txt @@ -364,6 +364,42 @@ cyc_thresh Specifies how frequently CYC packets are produced - see cyc CYC packets are not requested by default. +pt Specifies pass-through which enables the 'branch' config term. + + The default config selects 'pt' if it is available, so a user will + never need to specify this term. + +branch Enable branch tracing. Branch tracing is enabled by default so to + disable branch tracing use 'branch=0'. + + The default config selects 'branch' if it is available. + +ptw Enable PTWRITE packets which are produced when a ptwrite instruction + is executed. + + Support for this feature is indicated by: + + /sys/bus/event_source/devices/intel_pt/caps/ptwrite + + which contains "1" if the feature is supported and + "0" otherwise. + +fup_on_ptw Enable a FUP packet to follow the PTWRITE packet. The FUP packet + provides the address of the ptwrite instruction. In the absence of + fup_on_ptw, the decoder will use the address of the previous branch + if branch tracing is enabled, otherwise the address will be zero. + Note that fup_on_ptw will work even when branch tracing is disabled. + +pwr_evt Enable power events. The power events provide information about + changes to the CPU C-state. + + Support for this feature is indicated by: + + /sys/bus/event_source/devices/intel_pt/caps/power_event_trace + + which contains "1" if the feature is supported and + "0" otherwise. + new snapshot option ------------------- -- 1.9.1
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[PATCH 00/37] perf intel-pt: Power events and PTWRITE Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 30/37] perf intel-pt: Factor out intel_pt_set_event_name() Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 14/37] perf intel-pt: Add decoder support for CBR events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 27/37] perf intel-pt: Join needlessly wrapped lines Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 17/37] perf tools: Fix message because cpu list option is -C not -c Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 07/37] perf intel-pt: Ensure never to set 'last_ip' when packet 'count' is zero Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 37/37] perf intel-pt: Improve sample timestamp Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
Re: [PATCH 37/37] perf intel-pt: Improve sample timestamp Andi Kleen <ak@linux.intel.com> - 2017-05-19 16:40 +0200
[PATCH 09/37] perf intel-pt: Add missing __fallthrough Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 19/37] perf script: Add 'synth' event type for synthesized events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 35/37] perf intel-pt: Do not use TSC packets for calculating CPU cycles to TSC Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 05/37] perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 03/37] perf intel-pt: Add documentation for new config terms Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 26/37] perf intel-pt: Remove unused instructions_sample_period Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 11/37] perf intel-pt: Add decoder support for ptwrite and power event packets Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 18/37] perf script: Fix message because field list option is -F not -f Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 13/37] perf intel-pt: Move decoder error setting into one condition Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 32/37] perf intel-pt: Synthesize new power and ptwrite events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 15/37] perf intel-pt: Remove redundant initial_skip checks Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 24/37] perf script: Add synthesized Intel PT power and ptwrite events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 36/37] perf auxtrace: Add CPU filter support Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 23/37] perf auxtrace: Add itrace option to output power events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 25/37] perf intel-pt: Factor out common code synthesizing event samples Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 04/37] perf intel-pt: Fix missing stack clear Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 20/37] perf script: Add 'synth' field for synthesized event payloads Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 34/37] perf intel-pt: Update documentation to include new ptwrite and power events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 10/37] perf intel-pt: Clear FUP flag on error Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 28/37] perf intel-pt: Tidy Intel PT evsel lookup into separate function Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 16/37] perf intel-pt: Fix transactions_sample_type Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 01/37] perf intel-pt: Allow decoding with branch tracing disabled Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:20 +0200
[PATCH 02/37] perf intel-pt: Add default config for pass-through branch enable Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:20 +0200
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