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Arnaldo Carvalho de Melo 1b46cddfcc perf tools: Use rb_tree for maps 
Threads can have many and kernel modules will be represented as a
tree of maps as well.

Ah, and for a perf.data with 146607 samples:

Before:

[root@doppio ~]# perf stat -r 5 perf report > /dev/null

 Performance counter stats for 'perf report' (5 runs):

     699.823680  task-clock-msecs         #      0.991 CPUs    ( +-   0.454% )
             74  context-switches         #      0.000 M/sec   ( +-   1.709% )
              2  CPU-migrations           #      0.000 M/sec   ( +-  17.008% )
          23114  page-faults              #      0.033 M/sec   ( +-   0.000% )
     1381257019  cycles                   #   1973.721 M/sec   ( +-   0.290% )
     1456894438  instructions             #      1.055 IPC     ( +-   0.007% )
       18779818  cache-references         #     26.835 M/sec   ( +-   0.380% )
         641799  cache-misses             #      0.917 M/sec   ( +-   1.200% )

    0.705972729  seconds time elapsed   ( +-   0.501% )

[root@doppio ~]#

After

 Performance counter stats for 'perf report' (5 runs):

     691.261451  task-clock-msecs         #      0.993 CPUs    ( +-   0.307% )
             72  context-switches         #      0.000 M/sec   ( +-   0.829% )
              6  CPU-migrations           #      0.000 M/sec   ( +-  18.409% )
          23127  page-faults              #      0.033 M/sec   ( +-   0.000% )
     1366395876  cycles                   #   1976.670 M/sec   ( +-   0.153% )
     1443136016  instructions             #      1.056 IPC     ( +-   0.012% )
       17956402  cache-references         #     25.976 M/sec   ( +-   0.325% )
         661924  cache-misses             #      0.958 M/sec   ( +-   1.335% )

    0.696127275  seconds time elapsed   ( +-   0.377% )

I.e. we see some speedup too.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
LKML-Reference: <20090928174846.GA3361@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-30 13:57:56 +02:00
..
include perf report: Adjust column width to the values sampled 2009-07-11 10:24:11 +02:00
abspath.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
alias.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
cache.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
callchain.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
callchain.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
color.c perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00
color.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
config.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
ctype.c perf_counter tools: Add and use isprint() 2009-06-18 09:46:00 +02:00
debug.c perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00
debug.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
environment.c perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
event.h perf tools: Use rb_tree for maps 2009-09-30 13:57:56 +02:00
exec_cmd.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
exec_cmd.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
generate-cmdlist.sh perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
header.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
header.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
help.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
help.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
hist.c perf tools: Put common histogram functions in their own file 2009-09-30 13:57:56 +02:00
hist.h perf tools: Put common histogram functions in their own file 2009-09-30 13:57:56 +02:00
levenshtein.c perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
levenshtein.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
map.c perf tools: Factorize the map helpers 2009-08-12 12:37:37 +02:00
module.c perf tools: Fix buffer allocation 2009-09-24 15:11:23 +02:00
module.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
pager.c perf_counter tools: Remove dead code 2009-06-27 06:06:39 +02:00
parse-events.c perf tools: Dont use openat() 2009-09-24 21:20:08 +02:00
parse-events.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
parse-options.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
parse-options.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
path.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
PERF-VERSION-GEN perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
quote.c perf: Fix read buffer overflow 2009-08-04 11:09:56 +02:00
quote.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
run-command.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
run-command.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
sigchain.c perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ 2009-06-06 20:33:43 +02:00
sigchain.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
sort.c perf tools: Create util/sort.and use it 2009-09-24 21:27:52 +02:00
sort.h perf tools: Create util/sort.and use it 2009-09-24 21:27:52 +02:00
strbuf.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
strbuf.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
string.c perf_counter tools: Define and use our own u64, s64 etc. definitions 2009-06-19 18:25:47 +02:00
string.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
strlist.c strlist: Introduce strlist__entry and strlist__nr_entries methods 2009-07-11 19:20:25 +02:00
strlist.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
svghelper.c perf util: SVG performance improvements 2009-09-20 19:37:36 +02:00
svghelper.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
symbol.c perf tools: Fix module symbol loading bug 2009-09-23 13:45:48 +02:00
symbol.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
thread.c perf tools: Use rb_tree for maps 2009-09-30 13:57:56 +02:00
thread.h perf tools: Use rb_tree for maps 2009-09-30 13:57:56 +02:00
trace-event-info.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
trace-event-parse.c perf tools: Implement counter output multiplexing 2009-09-14 15:45:11 +02:00
trace-event-read.c perf sched: Display time in milliseconds, reorganize output 2009-09-13 10:22:44 +02:00
trace-event.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
types.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
usage.c perf top: Fall back to cpu-clock-tick hrtimer sampling if no cycle counter available 2009-06-07 17:31:52 +02:00
util.h Merge branch 'perfcounters/tracing' into perfcounters/core 2009-08-31 10:03:27 +02:00
values.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
values.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
wrapper.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00