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cc33618619
linux/tools/perf
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Adrian Hunter cc33618619 perf tools: Add Intel PT support for decoding CYC packets 
CYC packets provide even finer grain timestamp information than MTC and
TSC packets.  A CYC packet contains the number of CPU cycles since the
last CYC packet.

This patch just adds decoder support.  The CPU frequency can be related
to TSC using the Maximum Non-Turbo Ratio in combination with the CBR
(core-to-bus ratio) packet.  However more accuracy is achieved by simply
interpolating the number of cycles between other timing packets like MTC
or TSC.  This patch takes the latter approach.

Support for a default value and validation of values is provided by a
later patch. Also documentation is updated in a separate patch.

For details refer to the June 2015 or later Intel 64 and IA-32
Architectures SDM Chapter 36 Intel Processor Trace.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1437150840-31811-23-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-24 17:49:04 -03:00
..
arch perf tools: Add Intel PT support for using MTC packets 2015-08-24 17:48:06 -03:00
bench perf bench futex: Add lock_pi stresser 2015-07-20 17:49:51 -03:00
config perf tools: Support static linking with libdw 2015-08-13 14:49:11 -03:00
Documentation perf tools: Put itrace options into an asciidoc include 2015-08-21 11:40:44 -03:00
python perf python: Make twatch.py use soft dummy event, freq=0 2015-07-29 10:51:45 -03:00
scripts perf tools: Add example call-graph script 2015-08-21 12:32:40 -03:00
tests perf tests: Add tests to callgraph and time parse 2015-08-12 13:20:29 -03:00
trace/strace/groups perf trace: Support 'strace' syscall event groups 2015-07-20 15:16:32 -03:00
ui perf ui tui progress: Implement the ui_progress_ops->finish() method 2015-08-24 16:18:26 -03:00
util perf tools: Add Intel PT support for decoding CYC packets 2015-08-24 17:49:04 -03:00
.gitignore perf tools: Add Intel PT instruction decoder 2015-08-17 11:11:36 -03:00
Build perf trace: Support 'strace' syscall event groups 2015-07-20 15:16:32 -03:00
builtin-annotate.c perf annotate: Reset the dso find_symbol cache when removing symbols 2015-08-24 13:33:14 -03:00
builtin-bench.c perf bench futex: Add lock_pi stresser 2015-07-20 17:49:51 -03:00
builtin-buildid-cache.c perf buildid: Use SBUILD_ID_SIZE macro 2015-07-20 17:49:50 -03:00
builtin-buildid-list.c perf buildid: Use SBUILD_ID_SIZE macro 2015-07-20 17:49:50 -03:00
builtin-data.c perf data: Support using -f to override perf.data file ownership for 'convert' 2015-04-02 13:18:52 -03:00
builtin-diff.c perf callchain: Allow disabling call graphs per event 2015-08-12 13:20:28 -03:00
builtin-evlist.c perf evlist: Support using -f to override perf.data file ownership 2015-04-02 13:18:45 -03:00
builtin-help.c perf tools: Add the bash completion for listing subsubcommands of perf help 2015-03-19 13:49:39 -03:00
builtin-inject.c perf tools: Add new PERF_RECORD_SWITCH event 2015-07-23 22:51:13 -03:00
builtin-kmem.c perf kmem: Fill in the missing session freeing after an error occurs 2015-07-01 17:53:49 -03:00
builtin-kvm.c perf kvm: Fill in the missing session freeing after an error occurs 2015-07-01 17:53:49 -03:00
builtin-list.c perf list: Extend raw-dump to certain kind of events 2015-02-27 15:52:24 -03:00
builtin-lock.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-mem.c perf mem: Fill in the missing session freeing after an error occurs 2015-07-01 17:53:49 -03:00
builtin-probe.c perf probe: Delete an unnecessary check before the function call "strfilter__delete" 2015-07-06 08:58:36 -03:00
builtin-record.c Merge branch 'perf/urgent' into perf/core, to pick up fixes before adding more changes 2015-08-20 11:48:56 +02:00
builtin-report.c perf report: Show call graph from reference events 2015-08-12 13:20:28 -03:00
builtin-sched.c perf sched: Add option to merge like comms to lat output 2015-05-27 12:21:45 -03:00
builtin-script.c perf script: Initialize callchain_param.record_mode 2015-08-17 10:48:39 -03:00
builtin-stat.c perf stat: Move perf_counts struct and functions into separate object 2015-08-08 14:16:49 -03:00
builtin-timechart.c perf tools: Elliminate alignment holes 2015-05-18 10:17:33 -03:00
builtin-top.c Merge branch 'perf/urgent' into perf/core, to pick up fixes before adding more changes 2015-08-20 11:48:56 +02:00
builtin-trace.c perf trace: Move vfs_getname storage to per thread area 2015-08-14 13:16:27 -03:00
builtin.h perf tools: Add new 'perf data' command 2015-02-25 12:42:25 -03:00
command-list.txt perf tools: Add new 'perf data' command 2015-02-25 12:42:25 -03:00
CREDITS
design.txt
Makefile perf build: Fix single target build dependency check 2015-06-22 11:27:09 -03:00
Makefile.perf perf tools: Add Intel PT instruction decoder 2015-08-17 11:11:36 -03:00
MANIFEST perf tests: Add LLVM test for eBPF on-the-fly compiling 2015-08-07 10:57:24 -03:00
perf-archive.sh
perf-completion.sh perf tools: Avoid confusion with preloaded bash function for perf bash completion 2015-03-19 13:53:27 -03:00
perf-read-vdso.c perf tools: Build programs to copy 32-bit compatibility 2014-10-29 10:32:48 -02:00
perf-sys.h perf tools: Move generic barriers out of perf-sys.h 2015-05-08 16:05:08 -03:00
perf-with-kcore.sh perf tools: Fix perf-with-kcore handling of arguments containing spaces 2015-08-06 16:48:27 -03:00
perf.c perf tools: Fix the bash completion problem of 'perf --*' 2015-02-27 15:52:28 -03:00
perf.h perf tools: Introduce callgraph_set for callgraph option 2015-07-29 16:18:45 -03:00