https://bugs.kde.org/show_bug.cgi?id=387080
Bug ID: 387080
Summary: [PATCH] Add --only-peak option to ms_print
Product: valgrind
Version: unspecified
Platform: unspecified
OS: All
Status: UNCONFIRMED
Severity: wishlist
Priority: NOR
Component: massif
Assignee: n...@valgrind.org
Reporter: vz-...@zeitlins.org
Target Milestone: ---
I made a trivial patch to show just the peak heap usage as it was convenient
for me to compare different implementations of the same feature:
>From 6b57c2b789498780378c26a3bbc5cc81593fb1f3 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vz-...@zeitlins.org>
Date: Sat, 18 Nov 2017 18:16:43 +0100
Subject: [PATCH] Add --only-peak option to ms_print
Show just the peak heap usage if this option is specified.
---
massif/ms_print.in | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/massif/ms_print.in b/massif/ms_print.in
index 565fd6506..e030569c5 100755
--- a/massif/ms_print.in
+++ b/massif/ms_print.in
@@ -40,6 +40,9 @@ my $cmd;
# Time unit used in profile.
my $time_unit;
+# Indicates whether only peak memory usage should be given.
+my $only_peak = 0;
+
# Threshold dictating what percentage an entry must represent for us to
# bother showing it.
my $threshold = 1.0;
@@ -72,6 +75,7 @@ usage: ms_print [options] massif-out-file
options for the user, with defaults in [ ], are:
-h --help show this message
--version show version
+ --only-peak show only the peak memory usage [no]
--threshold=<m.n> significance threshold, in percent [$threshold]
--x=<4..1000> graph width, in columns [72]
--y=<4..1000> graph height, in rows [20]
@@ -115,6 +119,9 @@ sub process_cmd_line()
if ($arg =~ /^--version$/) {
die("ms_print-$version\n");
+ # --only-peak
+ } elsif ($arg eq '--only-peak') {
+ $only_peak = 1;
# --threshold=X (tolerates a trailing '%')
} elsif ($arg =~ /^--threshold=([\d\.]+)%?$/) {
$threshold = $1;
@@ -468,6 +475,12 @@ sub read_input_file()
close(INPUTFILE);
close(TMPFILE);
+ if ($only_peak) {
+ print "Peak memory usage: $peak_mem_total_szB bytes\n";
+ unlink($tmp_file);
+ return;
+ }
+
#-------------------------------------------------------------------------
# Print header.
#-------------------------------------------------------------------------
--
2.14.1.459.g238e487ea9
If you think this can be useful, I could add its description to the docs too
(especially if someone mentions which file(s) should be modified).
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