From: Andi Kleen <andi@firstfloor.org>
To: acme@kernel.org
Cc: jolsa@kernel.org, linux-perf-users@vger.kernel.org,
linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: [PATCH v5 10/15] perf tools: Add utility function to print ns time stamps
Date: Fri, 8 Mar 2019 21:56:23 -0800 [thread overview]
Message-ID: <20190309055628.21617-11-andi@firstfloor.org> (raw)
In-Reply-To: <20190309055628.21617-1-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);
--
2.20.1
next prev parent reply other threads:[~2019-03-09 5:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-09 5:56 Support sample context in perf report Andi Kleen
2019-03-09 5:56 ` [PATCH v5 01/15] perf tools: Add utility function to fetch executable Andi Kleen
2019-03-11 12:32 ` Jiri Olsa
2019-03-09 5:56 ` [PATCH v5 02/15] perf tools script: Support insn output for normal samples Andi Kleen
2019-03-09 5:56 ` [PATCH v5 03/15] perf tools script: Filter COMM/FORK/.. events by CPU Andi Kleen
2019-03-11 12:32 ` Jiri Olsa
2019-03-09 5:56 ` [PATCH v5 04/15] perf tools report: Support nano seconds Andi Kleen
2019-03-09 5:56 ` [PATCH v5 05/15] perf tools report: Parse time quantum Andi Kleen
2019-03-09 5:56 ` [PATCH v5 06/15] perf tools report: Support time sort key Andi Kleen
2019-03-09 5:56 ` [PATCH v5 07/15] perf tools report: Use less for scripts output Andi Kleen
2019-03-22 22:07 ` [tip:perf/urgent] perf " tip-bot for Andi Kleen
2019-03-09 5:56 ` [PATCH v5 08/15] perf tools report: Support running scripts for current time range Andi Kleen
2019-03-09 5:56 ` [PATCH v5 09/15] perf tools report: Support builtin perf script in scripts menu Andi Kleen
2019-03-09 5:56 ` Andi Kleen [this message]
2019-03-09 5:56 ` [PATCH v5 11/15] perf tools report: Implement browsing of individual samples Andi Kleen
2019-03-11 12:32 ` Jiri Olsa
2019-03-09 5:56 ` [PATCH v5 12/15] perf tools: Add some new tips describing the new options Andi Kleen
2019-03-09 5:56 ` [PATCH v5 13/15] perf tools report: Add custom scripts to script menu Andi Kleen
2019-03-09 5:56 ` [PATCH v5 14/15] perf tools script: Add array bound checking to list_scripts Andi Kleen
2019-03-09 5:56 ` [PATCH v5 15/15] perf tools ui: Fix ui popup browser for many entries Andi Kleen
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