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From: Andi Kleen <andi@firstfloor.org>
To: acme@kernel.org, linux-perf-users@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, jolsa@kernel.org,
	namhyung@kernel.org, eranian@google.com,
	Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 10/11] perf tools: Add utility function to print ns time stamps
Date: Sun, 24 Feb 2019 07:37:21 -0800	[thread overview]
Message-ID: <20190224153722.27020-11-andi@firstfloor.org> (raw)
In-Reply-To: <20190224153722.27020-1-andi@firstfloor.org>

From: Andi Kleen <ak@linux.intel.com>

Add a utility function to print nanosecond timestamps.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 tools/perf/util/time-utils.c | 8 ++++++++
 tools/perf/util/time-utils.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/tools/perf/util/time-utils.c b/tools/perf/util/time-utils.c
index 6193b46050a5..a63bdf4cfd1b 100644
--- a/tools/perf/util/time-utils.c
+++ b/tools/perf/util/time-utils.c
@@ -404,6 +404,14 @@ int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz)
 	return scnprintf(buf, sz, "%"PRIu64".%06"PRIu64, sec, usec);
 }
 
+int timestamp__scnprintf_nsec(u64 timestamp, char *buf, size_t sz)
+{
+	u64  sec = timestamp / NSEC_PER_SEC;
+	u64 nsec = timestamp % NSEC_PER_SEC;
+
+	return scnprintf(buf, sz, "%"PRIu64".%09"PRIu64, sec, nsec);
+}
+
 int fetch_current_timestamp(char *buf, size_t sz)
 {
 	struct timeval tv;
diff --git a/tools/perf/util/time-utils.h b/tools/perf/util/time-utils.h
index 70b177d2b98c..9266cf4a8e58 100644
--- a/tools/perf/util/time-utils.h
+++ b/tools/perf/util/time-utils.h
@@ -24,6 +24,7 @@ bool perf_time__ranges_skip_sample(struct perf_time_interval *ptime_buf,
 				   int num, u64 timestamp);
 
 int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz);
+int timestamp__scnprintf_nsec(u64 timestamp, char *buf, size_t sz);
 
 int fetch_current_timestamp(char *buf, size_t sz);
 
-- 
2.17.2


  parent reply	other threads:[~2019-02-24 15:37 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-24 15:37 Support sample context in perf report Andi Kleen
2019-02-24 15:37 ` [PATCH 01/11] perf tools script: Handle missing fields with -F + Andi Kleen
2019-02-25 12:56   ` Jiri Olsa
2019-02-25 13:49     ` Arnaldo Carvalho de Melo
2019-02-28  8:04   ` [tip:perf/core] perf " tip-bot for Andi Kleen
2019-02-24 15:37 ` [PATCH 02/11] perf tools script: Support insn output for normal samples Andi Kleen
2019-02-25 12:56   ` Jiri Olsa
2019-02-25 12:56   ` Jiri Olsa
2019-02-24 15:37 ` [PATCH 03/11] perf tools report: Support nano seconds Andi Kleen
2019-02-25 16:40   ` Sebastien Boisvert
2019-02-25 17:34     ` Andi Kleen
2019-02-24 15:37 ` [PATCH 04/11] perf tools report: Parse time quantum Andi Kleen
2019-02-25 12:55   ` Jiri Olsa
2019-02-24 15:37 ` [PATCH 05/11] perf tools report: Support time sort key Andi Kleen
2019-02-24 15:37 ` [PATCH 06/11] perf tools report: Use less for scripts output Andi Kleen
2019-02-25 12:55   ` Jiri Olsa
2019-02-24 15:37 ` [PATCH 07/11] perf tools report: Support running scripts for current time range Andi Kleen
2019-02-25 12:55   ` Jiri Olsa
2019-02-25 12:56   ` Jiri Olsa
2019-02-25 13:28     ` Andi Kleen
2019-02-25 13:35       ` Jiri Olsa
2019-02-24 15:37 ` [PATCH 08/11] perf tools: Add perf_exe() helper to find perf binary Andi Kleen
2019-02-25 12:56   ` Jiri Olsa
2019-02-25 13:58     ` Arnaldo Carvalho de Melo
2019-02-28  8:05   ` [tip:perf/core] " tip-bot for Andi Kleen
2019-02-24 15:37 ` [PATCH 09/11] perf tools report: Support builtin perf script in scripts menu Andi Kleen
2019-02-25 12:57   ` Jiri Olsa
2019-02-24 15:37 ` Andi Kleen [this message]
2019-02-24 15:37 ` [PATCH 11/11] perf tools report: Implement browsing of individual samples Andi Kleen
2019-02-25 12:56   ` Jiri Olsa
2019-02-25 12:56   ` Jiri Olsa
2019-02-25 13:33     ` Andi Kleen
2019-03-04 14:48       ` Jiri Olsa
2019-02-25 12:56   ` Jiri Olsa
2019-02-25 13:31     ` Andi Kleen
2019-02-25 13:35       ` Jiri Olsa

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