From: Andi Kleen <andi@firstfloor.org>
To: acme@kernel.org
Cc: jolsa@kernel.org, linux-kernel@vger.kernel.org,
Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 2/2] perf report: Fix --ns time sort key output
Date: Fri, 23 Aug 2019 14:03:38 -0700 [thread overview]
Message-ID: <20190823210338.12360-2-andi@firstfloor.org> (raw)
In-Reply-To: <20190823210338.12360-1-andi@firstfloor.org>
From: Andi Kleen <ak@linux.intel.com>
If the user specified --ns, the column to print the sort time stamp
wasn't wide enough to actually print the full nanoseconds.
Widen the time key column width when --ns is specified.
Before:
% perf record -a sleep 1
% perf report --sort time,overhead,symbol --stdio --ns
...
2.39% 187851.10000 [k] smp_call_function_single - -
1.53% 187851.10000 [k] intel_idle - -
0.59% 187851.10000 [.] __wcscmp_ifunc - -
0.33% 187851.10000 [.] 0000000000000000 - -
0.28% 187851.10000 [k] cpuidle_enter_state - -
After:
% perf report --sort time,overhead,symbol --stdio --ns
...
2.39% 187851.100000000 [k] smp_call_function_single - -
1.53% 187851.100000000 [k] intel_idle - -
0.59% 187851.100000000 [.] __wcscmp_ifunc - -
0.33% 187851.100000000 [.] 0000000000000000 - -
0.28% 187851.100000000 [k] cpuidle_enter_state - -
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/util/hist.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 8efbf58dc3d0..33702675073c 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -193,7 +193,10 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
hists__new_col_len(hists, HISTC_MEM_LVL, 21 + 3);
hists__new_col_len(hists, HISTC_LOCAL_WEIGHT, 12);
hists__new_col_len(hists, HISTC_GLOBAL_WEIGHT, 12);
- hists__new_col_len(hists, HISTC_TIME, 12);
+ if (symbol_conf.nanosecs)
+ hists__new_col_len(hists, HISTC_TIME, 16);
+ else
+ hists__new_col_len(hists, HISTC_TIME, 12);
if (h->srcline) {
len = MAX(strlen(h->srcline), strlen(sort_srcline.se_header));
--
2.20.1
next prev parent reply other threads:[~2019-08-23 21:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-23 21:03 [PATCH 1/2] perf report: Use timestamp__scnprintf_nsec for time sort key Andi Kleen
2019-08-23 21:03 ` Andi Kleen [this message]
2019-08-27 8:26 ` [tip: perf/core] perf report: Fix --ns time sort key output tip-bot2 for Andi Kleen
2019-08-25 14:31 ` [PATCH 1/2] perf report: Use timestamp__scnprintf_nsec for time sort key Arnaldo Carvalho de Melo
2019-08-27 8:26 ` [tip: perf/core] perf report: Use timestamp__scnprintf_nsec() " tip-bot2 for Andi Kleen
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