linux-kernel - [tip:perf/core] perf timechart: Use NSEC_PER

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Message-ID: <tip-5l1md8lsdhfnrlsqyejzo9w2@git.kernel.org>
Date:   Wed, 24 Aug 2016 02:14:56 -0700
From:   tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     jolsa@...nel.org, namhyung@...nel.org, tglx@...utronix.de,
        wangnan0@...wei.com, arjan@...ux.intel.com, mingo@...nel.org,
        rostedt@...dmis.org, adrian.hunter@...el.com,
        stfomichev@...dex-team.ru, hpa@...or.com,
        linux-kernel@...r.kernel.org, dsahern@...il.com, acme@...hat.com
Subject: [tip:perf/core] perf timechart: Use NSEC_PER_U?SEC

Commit-ID:  af4b2c972a5fc9358486d946d15f32510534ccbf
Gitweb:     http://git.kernel.org/tip/af4b2c972a5fc9358486d946d15f32510534ccbf
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Mon, 8 Aug 2016 12:45:58 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Tue, 23 Aug 2016 15:37:33 -0300

perf timechart: Use NSEC_PER_U?SEC

Following kernel practices, using linux/time64.h

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Arjan van de Ven <arjan@...ux.intel.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Stanislav Fomichev <stfomichev@...dex-team.ru>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/n/tip-5l1md8lsdhfnrlsqyejzo9w2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-timechart.c | 13 +++++++------
 tools/perf/util/svghelper.c    | 11 ++++++-----
 2 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 733a554..e7eaa29 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -24,6 +24,7 @@
 #include "util/evlist.h"
 #include "util/evsel.h"
 #include <linux/rbtree.h>
+#include <linux/time64.h>
 #include "util/symbol.h"
 #include "util/callchain.h"
 #include "util/strlist.h"
@@ -1288,9 +1289,9 @@ static void draw_process_bars(struct timechart *tchart)
 			if (c->comm) {
 				char comm[256];
 				if (c->total_time > 5000000000) /* 5 seconds */
-					sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / 1000000000.0);
+					sprintf(comm, "%s:%i (%2.2fs)", c->comm, p->pid, c->total_time / (double)NSEC_PER_SEC);
 				else
-					sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / 1000000.0);
+					sprintf(comm, "%s:%i (%3.1fms)", c->comm, p->pid, c->total_time / (double)NSEC_PER_MSEC);
 
 				svg_text(Y, c->start_time, comm);
 			}
@@ -1637,7 +1638,7 @@ static int __cmd_timechart(struct timechart *tchart, const char *output_name)
 	write_svg_file(tchart, output_name);
 
 	pr_info("Written %2.1f seconds of trace to %s.\n",
-		(tchart->last_time - tchart->first_time) / 1000000000.0, output_name);
+		(tchart->last_time - tchart->first_time) / (double)NSEC_PER_SEC, output_name);
 out_delete:
 	perf_session__delete(session);
 	return ret;
@@ -1901,10 +1902,10 @@ parse_time(const struct option *opt, const char *arg, int __maybe_unused unset)
 	if (sscanf(arg, "%" PRIu64 "%cs", value, &unit) > 0) {
 		switch (unit) {
 		case 'm':
-			*value *= 1000000;
+			*value *= NSEC_PER_MSEC;
 			break;
 		case 'u':
-			*value *= 1000;
+			*value *= NSEC_PER_USEC;
 			break;
 		case 'n':
 			break;
@@ -1928,7 +1929,7 @@ int cmd_timechart(int argc, const char **argv,
 			.ordered_events	 = true,
 		},
 		.proc_num = 15,
-		.min_time = 1000000,
+		.min_time = NSEC_PER_MSEC,
 		.merge_dist = 1000,
 	};
 	const char *output_name = "output.svg";
diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c
index eec6c11..1cbada2 100644
--- a/tools/perf/util/svghelper.c
+++ b/tools/perf/util/svghelper.c
@@ -18,6 +18,7 @@
 #include <unistd.h>
 #include <string.h>
 #include <linux/bitmap.h>
+#include <linux/time64.h>
 
 #include "perf.h"
 #include "svghelper.h"
@@ -274,14 +275,14 @@ static char *time_to_string(u64 duration)
 
 	text[0] = 0;
 
-	if (duration < 1000) /* less than 1 usec */
+	if (duration < NSEC_PER_USEC) /* less than 1 usec */
 		return text;
 
-	if (duration < 1000 * 1000) { /* less than 1 msec */
-		sprintf(text, "%.1f us", duration / 1000.0);
+	if (duration < NSEC_PER_MSEC) { /* less than 1 msec */
+		sprintf(text, "%.1f us", duration / (double)NSEC_PER_USEC);
 		return text;
 	}
-	sprintf(text, "%.1f ms", duration / 1000.0 / 1000);
+	sprintf(text, "%.1f ms", duration / (double)NSEC_PER_MSEC);
 
 	return text;
 }
@@ -297,7 +298,7 @@ void svg_waiting(int Yslot, int cpu, u64 start, u64 end, const char *backtrace)
 
 	style = "waiting";
 
-	if (end-start > 10 * 1000000) /* 10 msec */
+	if (end-start > 10 * NSEC_PER_MSEC) /* 10 msec */
 		style = "WAITING";
 
 	text = time_to_string(end-start);