Andi Kleen 508be0dfe6 perf report: Add srcline_from/to branch sort keys ...

Add "srcline_from" and "srcline_to" branch sort keys that allow to show
the source lines of a branch.

That makes it much easier to track down where particular branches happen
in the program, for example to examine branch mispredictions, or to
associate it with cycle counts:

  % perf record -b -e cycles:p ./tcall
  % perf report --sort srcline_from,srcline_to,mispredict
  ...
    15.10%  tcall.c:18       tcall.c:10       N
    14.83%  tcall.c:11       tcall.c:5        N
    14.12%  tcall.c:7        tcall.c:12       N
    14.04%  tcall.c:12       tcall.c:5        N
    12.42%  tcall.c:17       tcall.c:18       N
    12.39%  tcall.c:7        tcall.c:13       N
    12.27%  tcall.c:13       tcall.c:17       N
  ...

  % perf report --sort srcline_from,srcline_to,cycles
  ...
    17.12%  tcall.c:18       tcall.c:11       1
    17.01%  tcall.c:12       tcall.c:6        1
    16.98%  tcall.c:11       tcall.c:6        1
    15.91%  tcall.c:17       tcall.c:18       1
     6.38%  tcall.c:7        tcall.c:17       7
     4.80%  tcall.c:7        tcall.c:12       8
     4.21%  tcall.c:7        tcall.c:17       8
     2.67%  tcall.c:7        tcall.c:12       7
     2.62%  tcall.c:7        tcall.c:12       10
     2.10%  tcall.c:7        tcall.c:17       9
     1.58%  tcall.c:7        tcall.c:12       6
     1.44%  tcall.c:7        tcall.c:12       5
     1.38%  tcall.c:7        tcall.c:12       9
     1.06%  tcall.c:7        tcall.c:17       13
     1.05%  tcall.c:7        tcall.c:12       4
     1.01%  tcall.c:7        tcall.c:17       6

Open issues:

- Some kernel symbols get misresolved.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/r/1463775308-32748-1-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2016-05-23 11:25:16 -03:00

..

arch

perf dwarf: Guard !x86_64 definitions under #ifdef else clause

2016-05-12 11:26:59 -03:00

bench

perf bench: Remove one more die() call

2016-04-26 13:28:40 -03:00

config

perf probe: Check if dwarf_getlocations() is available

2016-05-12 11:26:59 -03:00

Documentation

perf report: Add srcline_from/to branch sort keys

2016-05-23 11:25:16 -03:00

jvmti

perf jit: Add support for using TSC as a timestamp

2016-04-01 18:42:55 -03:00

python

…

scripts

perf script: Update export-to-postgresql to support callchain export

2016-05-06 13:00:55 -03:00

tests

perf tests: Add test to check backward ring buffer

2016-05-09 18:11:22 -03:00

trace

perf trace: Move seccomp args beautifiers to tools/perf/trace/beauty/

2016-05-11 13:06:00 -03:00

ui

perf hists: Move sort__has_comm into struct perf_hpp_list

2016-05-05 21:04:02 -03:00

util

perf report: Add srcline_from/to branch sort keys

2016-05-23 11:25:16 -03:00

.gitignore

…

Build

perf tools: Set and pass DOCDIR to builtin-report.c

2016-01-12 12:42:07 -03:00

builtin-annotate.c

perf tools: Set buildid dir under symfs when --symfs is provided

2016-05-20 11:43:58 -03:00

builtin-bench.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-buildid-cache.c

perf symbols: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE

2016-05-16 23:11:48 -03:00

builtin-buildid-list.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-config.c

perf config: Make show_config() use perf_config_set

2016-04-14 09:15:47 -03:00

builtin-data.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-diff.c

perf tools: Set buildid dir under symfs when --symfs is provided

2016-05-20 11:43:58 -03:00

builtin-evlist.c

perf evlist: Add --trace-fields option to show trace fields

2016-01-08 14:23:02 -03:00

builtin-help.c

perf help: Make check_emacsclient_version to check strbuf APIs

2016-05-10 11:56:14 -03:00

builtin-inject.c

perf tools: Add time conversion event

2016-03-31 10:52:24 -03:00

builtin-kmem.c

perf callchain: Start moving away from global per thread cursors

2016-04-14 14:48:07 -03:00

builtin-kvm.c

perf evsel: Do not use globals in config()

2016-04-11 22:18:20 -03:00

builtin-list.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-lock.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-mem.c

perf mem: Add -U/-K (--all-user/--all-kernel) options

2016-03-30 11:14:07 -03:00

builtin-probe.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-record.c

perf record: Generate tracking events for process forked by perf

2016-04-28 09:58:59 -03:00

builtin-report.c

perf tools: Set buildid dir under symfs when --symfs is provided

2016-05-20 11:43:58 -03:00

builtin-sched.c

perf sched map: Display only given cpus

2016-04-13 10:11:52 -03:00

builtin-script.c

perf tools: Set buildid dir under symfs when --symfs is provided

2016-05-20 11:43:58 -03:00

builtin-stat.c

perf/core improvements and fixes:

2016-05-20 08:20:14 +02:00

builtin-timechart.c

perf tools: Set buildid dir under symfs when --symfs is provided

2016-05-20 11:43:58 -03:00

builtin-top.c

perf top: Use machine->kptr_restrict_warned

2016-05-20 11:43:55 -03:00

builtin-trace.c

perf trace: Only auto set call-graph to "dwarf" when syscalls are being traced

2016-05-20 11:43:57 -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: Remove needless 'extern' from function prototypes

2016-03-23 15:06:35 -03:00

command-list.txt

perf tools: Do not show trace command if it's not compiled in

2016-01-08 12:46:17 -03:00

CREDITS

…

design.txt

…

Makefile

perf build tests: Do parallell builds with 'build-test'

2016-02-04 15:57:00 -03:00

Makefile.perf

perf tools: Build syscall table .c header from kernel's syscall_64.tbl

2016-04-08 09:58:14 -03:00

MANIFEST

perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers

2016-03-24 12:28:57 -03:00

perf-archive.sh

…

perf-completion.sh

…

perf-read-vdso.c

…

perf-sys.h

…

perf-with-kcore.sh

…

perf.c

perf tools: Separate accounting of contexts and real addresses in a stack trace

2016-05-16 23:11:54 -03:00

perf.h

perf tools: Ditch record_opts.callgraph_set

2016-04-18 12:26:27 -03:00