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bd0f889536
linux/tools/perf
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Andi Kleen bd0f889536 perf evsel: Disable branch flags/cycles for --callgraph lbr 
[The kernel patch needed for this is in tip now (b16a5b52eb perf/x86:
Add option to disable ...) So this user tools patch to make use of it
should be merged now]

Automatically disable collecting branch flags and cycles with
--call-graph lbr. This allows avoiding a bunch of extra MSR
reads in the PMI on Skylake.

When the kernel doesn't support the new flags they are automatically
cleared in the fallback code.

v2: Switch to use branch_sample_type instead of sample_type.
Adjust description.
Fix the fallback logic.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1449879144-29074-1-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-14 12:11:22 -03:00
..
arch perf tests: Pass the subtest index to each test routine 2015-11-19 13:19:15 -03:00
bench perf bench: Use named initializers in the trailer too 2015-10-19 18:17:25 -03:00
config Revert "perf tools: Improve setting of gcc debug option" 2015-12-10 16:09:40 -03:00
Documentation perf config: Add initial man page 2015-11-23 18:31:25 -03:00
python perf python: Support the PERF_RECORD_SWITCH event 2015-10-07 19:41:50 -03:00
scripts perf tools: Add more documentation to export-to-postgresql.py script 2015-09-28 16:53:07 -03:00
tests perf test: Dump the stack when test segfaults when in verbose mode 2015-12-14 12:08:55 -03:00
trace/strace/groups perf trace: Add read/write to the file group 2015-09-04 13:22:06 -03:00
ui perf tui: Change default selection background color to yellow 2015-12-09 13:41:55 -03:00
util perf evsel: Disable branch flags/cycles for --callgraph lbr 2015-12-14 12:11:22 -03:00
.gitignore perf tools: Add Intel PT instruction decoder 2015-08-17 11:11:36 -03:00
Build perf tools: Move cmd_version() to builtin-version.c 2015-12-09 13:42:03 -03:00
builtin-annotate.c perf annotate: Delay UI browser setup after initialization is done 2015-12-10 14:33:54 -03:00
builtin-bench.c perf bench: Run benchmarks, don't test them 2015-10-19 16:10:25 -03:00
builtin-buildid-cache.c perf buildid: Introduce sysfs/filename__sprintf_build_id 2015-08-28 14:53:50 -03:00
builtin-buildid-list.c perf buildid-list: Fix return value of perf buildid-list -k 2015-12-07 12:02:10 -03:00
builtin-config.c perf tools: Add 'perf config' command 2015-11-23 18:31:24 -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 tools: Introduce usage_with_options_msg() 2015-10-27 09:28:44 -03:00
builtin-help.c perf help: Change 'usage' to 'Usage' for consistency 2015-10-19 16:51:44 -03:00
builtin-inject.c perf inject: Also re-pipe lost_samples event 2015-11-13 12:23:12 -03:00
builtin-kmem.c perf machine: Add method for common kernel_map(FUNCTION) operation 2015-09-30 18:34:29 -03:00
builtin-kvm.c perf kvm: Remove invocation of setup/exit_browser() 2015-12-10 14:35:35 -03:00
builtin-list.c perf list: Do event name substring search as last resort when no events found 2015-10-01 12:12:22 -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 tools: Introduce usage_with_options_msg() 2015-10-27 09:28:44 -03:00
builtin-record.c perf record: Add clang options for compiling BPF scripts 2015-10-29 17:16:22 -03:00
builtin-report.c perf report: Check argument before calling setup_browser() 2015-12-10 14:35:58 -03:00
builtin-sched.c perf sched latency: Fix thread pid reuse issue 2015-11-05 12:51:00 -03:00
builtin-script.c perf script: Add support for PERF_TYPE_BREAKPOINT 2015-12-11 09:25:16 -03:00
builtin-stat.c perf stat: Fix cmd_stat to release cpu_map 2015-12-09 13:41:59 -03:00
builtin-timechart.c perf tools: Elliminate alignment holes 2015-05-18 10:17:33 -03:00
builtin-top.c perf top: Cleanup condition in perf_top__record_precise_ip() 2015-12-11 08:38:10 -03:00
builtin-trace.c perf trace: Add cmd string table to decode sys_bpf first arg 2015-10-29 11:48:18 -03:00
builtin-version.c perf tools: Move cmd_version() to builtin-version.c 2015-12-09 13:42:03 -03:00
builtin.h perf tools: Add 'perf config' command 2015-11-23 18:31:24 -03:00
command-list.txt perf tools: Add 'perf config' command 2015-11-23 18:31:24 -03:00
CREDITS
design.txt
Makefile perf tools: Allow shuffling the build tests 2015-11-05 11:39:54 -03:00
Makefile.perf perf build: Fix traceevent plugins build race 2015-11-26 13:35:38 -03:00
MANIFEST tools: Adopt memdup() from tools/perf, moving it to tools/lib/string.c 2015-11-18 17:51:02 -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-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: Save cmdline arguments earlier 2015-12-09 13:42:03 -03:00
perf.h perf record: Add ability to name registers to record 2015-08-31 18:01:33 -03:00