Commit Graph

106 Commits

Author SHA1 Message Date
Hitoshi Mitake
cced06c62a perf bench: Modify bench/bench-messaging.c to adopt unified output formatting
This patch modifies bench/bench-messaging.c to adopt
unified output formatting: --format option.

Usage example:

 % ./perf bench sched messaging              # with no style
 specify (20 sender and receiver processes per group)
 (10 groups == 400 processes run)

        Total time:1.431 sec

 % ./perf bench --format=simple sched messaging # specified
 simple 1.431

Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1257808802-9420-4-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-10 04:53:49 +01:00
Hitoshi Mitake
242aa14a67 perf bench: Add format constants to bench.h for unified output formatting
This patch adds some constants and extern declaration to
bench.h. These are used for unified output formatting
of 'perf bench'.

Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1257808802-9420-2-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-10 04:53:48 +01:00
Hitoshi Mitake
5ff0cfc67f perf bench: Fix bench/sched-pipe.c to wait for child process
Ingo reported this small 'perf bench sched pipe' output problem:

 | $ ./perf bench sched pipe
 | (executing 1000000 pipe operations between two tasks)
 |
 |	Total time:4.898 sec
 | $		4.898586 usecs/op
 |		204140 ops/sec
 |
 | the shell prompt came back before the usecs/op and ops/sec line
 | was printed. Process teardown race, lack of wait() or so?

This caused by lack of calling waitpid() by parent process,
so I added it.

Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Kosina <jkosina@suse.cz>
LKML-Reference: <1257737465-7546-1-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-09 08:14:30 +01:00
Hitoshi Mitake
c7d9300f36 perf bench: Add sched-pipe.c: Benchmark for pipe() system call
This patch adds bench/sched-pipe.c.

bench/sched-pipe.c is a benchmark program
to measure performance of pipe() system call.
This benchmark is based on pipe-test-1m.c by Ingo Molnar:

   http://people.redhat.com/mingo/cfs-scheduler/tools/pipe-test-1m.c

Example of use:

% perf bench sched pipe
  (executing 1000000 pipe operations between two tasks)

          Total time:4.499 sec
                  4.499179 usecs/op
                  222262 ops/sec

% perf bench sched pipe -s -l 1000
0.015

Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: fweisbec@gmail.com
Cc: Jiri Kosina <jkosina@suse.cz>
LKML-Reference: <1257381097-4743-4-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-08 10:19:18 +01:00
Hitoshi Mitake
e27454cc63 perf bench: Add sched-messaging.c: Benchmark for scheduler and IPC mechanisms based on hackbench
This patch adds bench/sched-messaging.c.

This benchmark measures performance of scheduler and IPC
mechanisms, and is based on hackbench by Rusty Russell.

Example of usage:

  % perf bench sched messaging -g 20 -l 1000 -s
  5.432  	  	       	    	    	     # in sec

  % perf bench sched messaging                 # run with default
  options (20 sender and receiver processes per group)
  (10 groups == 400 processes run)

        Total time:0.308 sec

  % perf bench sched messaging -t -g 20	     # # be multi-thread,
  with 20 groups (20 sender and receiver threads per group)
  (20 groups == 800 threads run)

        Total time:0.582 sec

( Rusty is the original author of hackbench.c and he said the code is
  and was under the GPLv2 so fine to be merged. )

Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: fweisbec@gmail.com
Cc: Jiri Kosina <jkosina@suse.cz>
LKML-Reference: <1257381097-4743-3-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-08 10:19:17 +01:00
Hitoshi Mitake
c426bba069 perf bench: Add new directory and header for new subcommand 'bench'
This patch adds bench/ directory and bench/bench.h.

bench/ directory will contain modules for bench subcommand.
bench/bench.h is for listing prototypes of module functions.

Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: fweisbec@gmail.com
Cc: Jiri Kosina <jkosina@suse.cz>
LKML-Reference: <1257381097-4743-2-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-08 10:19:15 +01:00