Commit-ID: 583359646fde8526ea9456618cc24dc359b34094 Gitweb: http://git.kernel.org/tip/583359646fde8526ea9456618cc24dc359b34094 Author: Namhyung Kim <namhy...@kernel.org> AuthorDate: Fri, 24 Feb 2017 10:12:51 +0900 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Fri, 3 Mar 2017 19:07:17 -0300
perf ftrace: Use pager for displaying result It's convenient to use the pager when seeing many lines of result. Note that setup_pager() should be called after perf_evlist__prepare_workload() since they can interfere each other regarding shared stdio streams. Signed-off-by: Namhyung Kim <namhy...@kernel.org> Tested-by: Arnaldo Carvalho de Melo <a...@redhat.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Steven Rostedt <rost...@goodmis.org> Cc: kernel-t...@lge.com Link: http://lkml.kernel.org/r/20170224011251.14946-4-namhy...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/builtin-ftrace.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c index d5b566e..6087295 100644 --- a/tools/perf/builtin-ftrace.c +++ b/tools/perf/builtin-ftrace.c @@ -195,6 +195,7 @@ static int __cmd_ftrace(struct perf_ftrace *ftrace, int argc, const char **argv) signal(SIGINT, sig_handler); signal(SIGUSR1, sig_handler); signal(SIGCHLD, sig_handler); + signal(SIGPIPE, sig_handler); if (reset_tracing_files(ftrace) < 0) goto out; @@ -247,6 +248,8 @@ static int __cmd_ftrace(struct perf_ftrace *ftrace, int argc, const char **argv) goto out_close_fd; } + setup_pager(); + perf_evlist__start_workload(ftrace->evlist); while (!done) {
