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dfbdaa28a5
Introduce `--profile` support to the benchmark helper script, which will invoke `perf` on Linux. Additionally, add a `--flamegraph` output option based on that.
61 lines
1.5 KiB
Raku
Executable File
61 lines
1.5 KiB
Raku
Executable File
#!/usr/bin/perl -ws
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#
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# stackcollapse-recursive Collapse direct recursive backtraces
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#
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# Post-process a stack list and merge direct recursive calls:
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#
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# Example input:
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#
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# main;recursive;recursive;recursive;helper 1
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#
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# Output:
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#
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# main;recursive;helper 1
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#
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# Copyright 2014 Gabriel Corona. All rights reserved.
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License (the "License").
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# You may not use this file except in compliance with the License.
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#
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# You can obtain a copy of the license at docs/cddl1.txt or
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# http://opensource.org/licenses/CDDL-1.0.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at docs/cddl1.txt.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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my %stacks;
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while(<>) {
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chomp;
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my ($stack_, $value) = (/^(.*)\s+?(\d+(?:\.\d*)?)$/);
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if ($stack_) {
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my @stack = split(/;/, $stack_);
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my @result = ();
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my $i;
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my $last="";
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for($i=0; $i!=@stack; ++$i) {
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if(!($stack[$i] eq $last)) {
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$result[@result] = $stack[$i];
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$last = $stack[$i];
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}
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}
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$stacks{join(";", @result)} += $value;
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}
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}
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foreach my $k (sort { $a cmp $b } keys %stacks) {
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print "$k $stacks{$k}\n";
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}
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