#!/usr/bin/perl
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# ------------------------------------------
# compare.shingle.benchmark.jira.tables.pl
#
# Takes as cmdline parameters two JIRA-formatted benchmark results, as produced
# by shingle.bm2jira.pl (located in the same directory as this script), and
# outputs a third JIRA-formatted comparison table.
#
# The difference is calculated as a percentage:
#
# 100 * (unpatched-elapsed - patched-elapsed / patched-elapsed)
#
# where (un)patched-elapsed values have had the no-shingle-filter
# (StandardAnalyzer) elapsed time subtracted from them.
#
#
# Example shingle.bm2jira.pl output:
# ----------------------------------
# JAVA:
# java version "1.5.0_15"
# Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_15-b04)
# Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_15-b04, mixed mode)
#
# OS:
# cygwin
# WinVistaService Pack 2
# Service Pack 26060022202561
#
# ||Max Shingle Size||Unigrams?||Elapsed||
# |1 (Unigrams)|yes|2.19s|
# |2|no|4.74s|
# |2|yes|4.90s|
# |4|no|5.82s|
# |4|yes|5.97s|
use strict;
use warnings;
my $usage = "Usage: $0 <unpatched-file> <patched-file>\n";
die $usage unless ($#ARGV == 1 && -f $ARGV[0] && -f $ARGV[1]);
my %stats = ();
open UNPATCHED, "<$ARGV[0]" || die "ERROR opening '$ARGV[0]': $!";
my $table_encountered = 0;
my $standard_analyzer_elapsed = 0;
my %unpatched_stats = ();
my %patched_stats = ();
while (<UNPATCHED>) {
unless ($table_encountered) {
if (/\Q||Max Shingle Size||Unigrams?||Elapsed||\E/) {
$table_encountered = 1;
} else {
print;
}
} elsif (/\|([^|]+)\|([^|]+)\|([\d.]+)s\|/) {
my $max_shingle_size = $1;
my $output_unigrams = $2;
my $elapsed = $3;
if ($max_shingle_size =~ /Unigrams/) {
$standard_analyzer_elapsed = $elapsed;
} else {
$unpatched_stats{$max_shingle_size}{$output_unigrams} = $elapsed;
}
}
}
close UNPATCHED;
open PATCHED, "<$ARGV[1]" || die "ERROR opening '$ARGV[1]': $!";
while (<PATCHED>) {
if (/\|([^|]+)\|([^|]+)\|([\d.]+)s\|/) {
my $max_shingle_size = $1;
my $output_unigrams = $2;
my $elapsed = $3;
if ($max_shingle_size =~ /Unigrams/) {
$standard_analyzer_elapsed = $elapsed
if ($elapsed < $standard_analyzer_elapsed);
} else {
$patched_stats{$max_shingle_size}{$output_unigrams} = $elapsed;
}
}
}
close PATCHED;
print "||Max Shingle Size||Unigrams?||Unpatched||Patched||StandardAnalyzer||Improvement||\n";
for my $max_shingle_size (sort { $a <=> $b } keys %unpatched_stats) {
for my $output_unigrams (sort keys %{$unpatched_stats{$max_shingle_size}}) {
my $improvement
= ( $unpatched_stats{$max_shingle_size}{$output_unigrams}
- $patched_stats{$max_shingle_size}{$output_unigrams})
/ ( $patched_stats{$max_shingle_size}{$output_unigrams}
- $standard_analyzer_elapsed);
$improvement = int($improvement * 1000 + .5) / 10; # Round and truncate
printf "|$max_shingle_size|$output_unigrams"
."|$unpatched_stats{$max_shingle_size}{$output_unigrams}s"
."|$patched_stats{$max_shingle_size}{$output_unigrams}s"
."|${standard_analyzer_elapsed}s|%2.1f%%|\n", $improvement;
}
}