[tip:perf/core] perf hists: Use bigger buffer for stdio headers

[tip-bot for Jiri Olsa]

Commit-ID:  d5278220be663753a011910c194d50758cd8dc98
Gitweb:     http://git.kernel.org/tip/d5278220be663753a011910c194d50758cd8dc98
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Mon, 19 Sep 2016 15:09:13 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 21 Sep 2016 12:14:59 -0300

perf hists: Use bigger buffer for stdio headers

With node column on big CPUs servers we can run out of stdio header
space quite soon. Enlarging header buffer.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Joe Mario <jmario@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1474290610-23241-5-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/ui/stdio/hist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 8e1840b..c8dca34 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -698,7 +698,7 @@ hists__fprintf_standard_headers(struct hists *hists,
 
 static int hists__fprintf_headers(struct hists *hists, FILE *fp)
 {
-	char bf[96];
+	char bf[1024];
 	struct perf_hpp dummy_hpp = {
 		.buf	= bf,
 		.size	= sizeof(bf),