perf trace: Write to stderr by default
tip-bot for Milian Wolff
merge botCommit-ID: 007d66a0bd43d886eb3e4aceaf1a96b8743ccaff Gitweb: http://git.kernel.org/tip/007d66a0bd43d886eb3e4aceaf1a96b8743ccaff Author: Milian Wolff <[email protected]> AuthorDate: Wed, 5 Aug 2015 16:52:23 -0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Wed, 5 Aug 2015 16:52:23 -0300
perf trace: Write to stderr by default
Without this patch, it is cumbersome to read the trace output but ignoring the normal, potentially verbose, output of the debuggee. One common example is doing something like the following:
perf trace -s find /tmp > /dev/null
Without this patch, the trace summary will be lost. Now, it will still be printed at the end. This behavior is also applied by strace.
Cc Milian Wolff <[email protected]>
Cc David Ahern <[email protected]>
Signed-off-by Arnaldo Carvalho de Melo <[email protected]>
--- tools/perf/builtin-trace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
tools/perf/builtin-trace.c +1 -1
@@ -2965,7 +2965,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) .mmap_pages = UINT_MAX, .proc_map_timeout = 500, }, - .output = stdout, + .output = stderr, .show_comm = true, .trace_syscalls = true, };