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authorHitoshi Mitake <mitake@dcl.info.waseda.ac.jp>2009-11-09 12:31:05 +0900
committerIngo Molnar <mingo@elte.hu>2009-11-09 08:14:30 +0100
commit5ff0cfc67f00fe0feaa1da0b2359232ea4aa0ee7 (patch)
treef432370dfa63a7a3b63354d670128764eff534a1 /tools/perf/bench/bench.h
parentbfde82ef51e3ea6ab8634d0fdbf5adcdd1b429cb (diff)
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>
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