mirror of
https://github.com/git/git
synced 2024-08-24 18:26:02 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
Performance test framework has been broken and measured the version
of Git that happens to be on $PATH, not the specified one to
measure, for a while, which has been corrected.
* ab/perf-installed-fix:
perf-lib.sh: forbid the use of GIT_TEST_INSTALLED
perf tests: add "bindir" prefix to git tree test results
perf-lib.sh: remove GIT_TEST_INSTALLED from perf-lib.sh
perf-lib.sh: make "./run <revisions>" use the correct gits
perf aggregate: remove GIT_TEST_INSTALLED from --codespeed
perf README: correct docs for 3c8f12c96c
regression
358 lines
8.3 KiB
Perl
Executable file
358 lines
8.3 KiB
Perl
Executable file
#!/usr/bin/perl
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use lib '../../perl/build/lib';
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use strict;
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use warnings;
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use Getopt::Long;
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use Git;
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use Cwd qw(realpath);
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sub get_times {
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my $name = shift;
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open my $fh, "<", $name or return undef;
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my $line = <$fh>;
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return undef if not defined $line;
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close $fh or die "cannot close $name: $!";
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# times
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if ($line =~ /^(?:(\d+):)?(\d+):(\d+(?:\.\d+)?) (\d+(?:\.\d+)?) (\d+(?:\.\d+)?)$/) {
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my $rt = ((defined $1 ? $1 : 0.0)*60+$2)*60+$3;
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return ($rt, $4, $5);
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# size
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} elsif ($line =~ /^\d+$/) {
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return $&;
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} else {
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die "bad input line: $line";
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}
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}
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sub relative_change {
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my ($r, $firstr) = @_;
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if ($firstr > 0) {
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return sprintf "%+.1f%%", 100.0*($r-$firstr)/$firstr;
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} elsif ($r == 0) {
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return "=";
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} else {
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return "+inf";
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}
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}
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sub format_times {
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my ($r, $u, $s, $firstr) = @_;
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# no value means we did not finish the test
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if (!defined $r) {
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return "<missing>";
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}
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# a single value means we have a size, not times
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if (!defined $u) {
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return format_size($r, $firstr);
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}
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# otherwise, we have real/user/system times
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my $out = sprintf "%.2f(%.2f+%.2f)", $r, $u, $s;
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$out .= ' ' . relative_change($r, $firstr) if defined $firstr;
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return $out;
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}
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sub usage {
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print <<EOT;
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./aggregate.perl [options] [--] [<dir_or_rev>...] [--] [<test_script>...] >
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Options:
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--codespeed * Format output for Codespeed
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--reponame <str> * Send given reponame to codespeed
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--sort-by <str> * Sort output (only "regression" criteria is supported)
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--subsection <str> * Use results from given subsection
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EOT
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exit(1);
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}
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sub human_size {
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my $n = shift;
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my @units = ('', qw(K M G));
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while ($n > 900 && @units > 1) {
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$n /= 1000;
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shift @units;
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}
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return $n unless length $units[0];
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return sprintf '%.1f%s', $n, $units[0];
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}
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sub format_size {
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my ($size, $first) = @_;
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# match the width of a time: 0.00(0.00+0.00)
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my $out = sprintf '%15s', human_size($size);
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$out .= ' ' . relative_change($size, $first) if defined $first;
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return $out;
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}
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my (@dirs, %dirnames, %dirabbrevs, %prefixes, @tests,
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$codespeed, $sortby, $subsection, $reponame);
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Getopt::Long::Configure qw/ require_order /;
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my $rc = GetOptions("codespeed" => \$codespeed,
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"reponame=s" => \$reponame,
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"sort-by=s" => \$sortby,
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"subsection=s" => \$subsection);
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usage() unless $rc;
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while (scalar @ARGV) {
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my $arg = $ARGV[0];
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my $dir;
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my $prefix = '';
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last if -f $arg or $arg eq "--";
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if (! -d $arg) {
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my $rev = Git::command_oneline(qw(rev-parse --verify), $arg);
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$dir = "build/".$rev;
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} elsif ($arg eq '.') {
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$dir = '.';
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} else {
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$dir = realpath($arg);
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$dirnames{$dir} = $dir;
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$prefix .= 'bindir';
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}
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push @dirs, $dir;
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$dirnames{$dir} ||= $arg;
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$prefix .= $dir;
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$prefix =~ tr/^a-zA-Z0-9/_/c;
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$prefixes{$dir} = $prefix . '.';
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shift @ARGV;
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}
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if (not @dirs) {
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@dirs = ('.');
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}
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$dirnames{'.'} = $dirabbrevs{'.'} = "this tree";
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$prefixes{'.'} = '';
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shift @ARGV if scalar @ARGV and $ARGV[0] eq "--";
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@tests = @ARGV;
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if (not @tests) {
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@tests = glob "p????-*.sh";
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}
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my $resultsdir = "test-results";
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if (! $subsection and
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exists $ENV{GIT_PERF_SUBSECTION} and
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$ENV{GIT_PERF_SUBSECTION} ne "") {
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$subsection = $ENV{GIT_PERF_SUBSECTION};
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}
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if ($subsection) {
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$resultsdir .= "/" . $subsection;
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}
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my @subtests;
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my %shorttests;
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for my $t (@tests) {
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$t =~ s{(?:.*/)?(p(\d+)-[^/]+)\.sh$}{$1} or die "bad test name: $t";
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my $n = $2;
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my $fname = "$resultsdir/$t.subtests";
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open my $fp, "<", $fname or die "cannot open $fname: $!";
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for (<$fp>) {
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chomp;
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/^(\d+)$/ or die "malformed subtest line: $_";
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push @subtests, "$t.$1";
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$shorttests{"$t.$1"} = "$n.$1";
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}
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close $fp or die "cannot close $fname: $!";
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}
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sub read_descr {
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my $name = shift;
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open my $fh, "<", $name or return "<error reading description>";
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binmode $fh, ":utf8" or die "PANIC on binmode: $!";
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my $line = <$fh>;
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close $fh or die "cannot close $name";
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chomp $line;
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return $line;
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}
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sub have_duplicate {
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my %seen;
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for (@_) {
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return 1 if exists $seen{$_};
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$seen{$_} = 1;
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}
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return 0;
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}
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sub have_slash {
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for (@_) {
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return 1 if m{/};
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}
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return 0;
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}
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sub display_dir {
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my ($d) = @_;
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return exists $dirabbrevs{$d} ? $dirabbrevs{$d} : $dirnames{$d};
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}
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sub print_default_results {
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my %descrs;
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my $descrlen = 4; # "Test"
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for my $t (@subtests) {
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$descrs{$t} = $shorttests{$t}.": ".read_descr("$resultsdir/$t.descr");
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$descrlen = length $descrs{$t} if length $descrs{$t}>$descrlen;
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}
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my %newdirabbrevs = %dirabbrevs;
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while (!have_duplicate(values %newdirabbrevs)) {
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%dirabbrevs = %newdirabbrevs;
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last if !have_slash(values %dirabbrevs);
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%newdirabbrevs = %dirabbrevs;
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for (values %newdirabbrevs) {
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s{^[^/]*/}{};
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}
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}
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my %times;
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my @colwidth = ((0)x@dirs);
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for my $i (0..$#dirs) {
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my $w = length display_dir($dirs[$i]);
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$colwidth[$i] = $w if $w > $colwidth[$i];
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}
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for my $t (@subtests) {
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my $firstr;
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for my $i (0..$#dirs) {
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my $d = $dirs[$i];
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my $base = "$resultsdir/$prefixes{$d}$t";
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$times{$prefixes{$d}.$t} = [];
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foreach my $type (qw(times size)) {
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if (-e "$base.$type") {
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$times{$prefixes{$d}.$t} = [get_times("$base.$type")];
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last;
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}
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}
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my ($r,$u,$s) = @{$times{$prefixes{$d}.$t}};
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my $w = length format_times($r,$u,$s,$firstr);
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$colwidth[$i] = $w if $w > $colwidth[$i];
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$firstr = $r unless defined $firstr;
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}
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}
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my $totalwidth = 3*@dirs+$descrlen;
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$totalwidth += $_ for (@colwidth);
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printf "%-${descrlen}s", "Test";
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for my $i (0..$#dirs) {
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printf " %-$colwidth[$i]s", display_dir($dirs[$i]);
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}
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print "\n";
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print "-"x$totalwidth, "\n";
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for my $t (@subtests) {
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printf "%-${descrlen}s", $descrs{$t};
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my $firstr;
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for my $i (0..$#dirs) {
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my $d = $dirs[$i];
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my ($r,$u,$s) = @{$times{$prefixes{$d}.$t}};
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printf " %-$colwidth[$i]s", format_times($r,$u,$s,$firstr);
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$firstr = $r unless defined $firstr;
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}
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print "\n";
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}
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}
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sub print_sorted_results {
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my ($sortby) = @_;
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if ($sortby ne "regression") {
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print "Only 'regression' is supported as '--sort-by' argument\n";
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usage();
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}
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my @evolutions;
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for my $t (@subtests) {
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my ($prevr, $prevu, $prevs, $prevrev);
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for my $i (0..$#dirs) {
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my $d = $dirs[$i];
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my ($r, $u, $s) = get_times("$resultsdir/$prefixes{$d}$t.times");
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if ($i > 0 and defined $r and defined $prevr and $prevr > 0) {
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my $percent = 100.0 * ($r - $prevr) / $prevr;
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push @evolutions, { "percent" => $percent,
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"test" => $t,
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"prevrev" => $prevrev,
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"rev" => $d,
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"prevr" => $prevr,
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"r" => $r,
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"prevu" => $prevu,
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"u" => $u,
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"prevs" => $prevs,
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"s" => $s};
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}
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($prevr, $prevu, $prevs, $prevrev) = ($r, $u, $s, $d);
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}
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}
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my @sorted_evolutions = sort { $b->{percent} <=> $a->{percent} } @evolutions;
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for my $e (@sorted_evolutions) {
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printf "%+.1f%%", $e->{percent};
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print " " . $e->{test};
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print " " . format_times($e->{prevr}, $e->{prevu}, $e->{prevs});
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print " " . format_times($e->{r}, $e->{u}, $e->{s});
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print " " . display_dir($e->{prevrev});
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print " " . display_dir($e->{rev});
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print "\n";
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}
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}
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sub print_codespeed_results {
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my ($subsection) = @_;
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my $project = "Git";
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my $executable = `uname -s -m`;
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chomp $executable;
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if ($subsection) {
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$executable .= ", " . $subsection;
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}
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my $environment;
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if ($reponame) {
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$environment = $reponame;
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} elsif (exists $ENV{GIT_PERF_REPO_NAME} and $ENV{GIT_PERF_REPO_NAME} ne "") {
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$environment = $ENV{GIT_PERF_REPO_NAME};
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} else {
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$environment = `uname -r`;
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chomp $environment;
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}
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my @data;
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for my $t (@subtests) {
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for my $d (@dirs) {
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my $commitid = $prefixes{$d};
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$commitid =~ s/^build_//;
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$commitid =~ s/\.$//;
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my ($result_value, $u, $s) = get_times("$resultsdir/$prefixes{$d}$t.times");
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my %vals = (
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"commitid" => $commitid,
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"project" => $project,
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"branch" => $dirnames{$d},
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"executable" => $executable,
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"benchmark" => $shorttests{$t} . " " . read_descr("$resultsdir/$t.descr"),
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"environment" => $environment,
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"result_value" => $result_value,
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);
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push @data, \%vals;
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}
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}
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require JSON;
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print JSON::to_json(\@data, {utf8 => 1, pretty => 1, canonical => 1}), "\n";
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}
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binmode STDOUT, ":utf8" or die "PANIC on binmode: $!";
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if ($codespeed) {
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print_codespeed_results($subsection);
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} elsif (defined $sortby) {
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print_sorted_results($sortby);
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} else {
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print_default_results();
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}
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