Messages in this thread | | | From | Namhyung Kim <> | Subject | Re: [PATCH] perf stat: Fix default logfd to use stderr | Date | Tue, 19 Jun 2012 11:13:59 +0900 |
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Hi, Robert
On Mon, 18 Jun 2012 16:51:08 +0200, Robert Richter wrote: > On 29.09.11 18:48:01, Arnaldo Carvalho de Melo wrote: >> From: Jim Cromie <jim.cromie@gmail.com> >> >> This perf stat option emulates valgrind's --log-fd option, allowing the >> user to send perf results elsewhere, and leaving stderr for use by the >> program under test. This complements --output file option, and is >> mutually exclusive with it. >> >> 3>results perf stat --log-fd 3 -- $cmd >> 3>>results perf stat --log-fd 3 --append -- $cmd >> >> The perl distro's make test.valgrind target uses valgrind's --log-fd >> option, I've adapted it to invoke perf also, and tested this patch >> there. >> >> Link: http://lkml.kernel.org/r/1315437244-3788-2-git-send-email-jim.cromie@gmail.com >> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> >> Signed-off-by: Jim Cromie <jim.cromie@gmail.com> >> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> > > With certain shell redirections this (56f3bae) fails with a log fd > setup failure. Fix below. >
It looks somewhat related to Stephane's patch. Can you we check it too?
http://lkml.indiana.edu/hypermail/linux/kernel/1205.1/04232.html
Thanks, Namhyung
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