#!/usr/bin/perl -ws
#
# stackcollapse-wcp Collapse wallClockProfiler backtraces
#
# Parse a list of GDB backtraces as generated by https://github.com/jasonrohrer/wallClockProfiler
#
# Copyright 2014 Gabriel Corona. All rights reserved.
# Portions Copyright 2020 Ștefan Talpalaru <stefantalpalaru@yahoo.com>
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at docs/cddl1.txt or
# http://opensource.org/licenses/CDDL-1.0.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at docs/cddl1.txt.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
use strict;
my $current =
"";
my $start_processing =
0;
my $samples =
0;
my %stacks;
while(<>) {
s/^\s+|\s+$//g;
if (m/^Full stacks/) {
$start_processing =
1;
next;
}
if (not $start_processing) {
next;
}
if(m/^\d+\.\d+% =+ \((\d+) samples\)/) {
# 99.791% ===================================== (17194 samples)
$samples = $
1;
next;
} elsif (m/^\d+: (.*)$/) {
# 1: poll__YNjd8fE6xG8CRNwfLnrx0g_2 (at /mnt/sde1/storage/nim-beacon-chain-clean/vendor/nim-chronos/chronos/asyncloop.nim:343)
my $
function = $
1;
if ($current eq
"") {
$current = $
function;
}
else {
$current = $
function .
";" . $current;
}
} elsif (m/^$/ and $current ne
"") {
$stacks{$current} += $samples;
$current =
"";
}
}
foreach my $k (sort { $a cmp $b } keys %stacks) {
print
"$k $stacks{$k}\n";
}
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