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Lucene example source code file (compare.collation.benchmark.tables.pl)

This example Lucene source code file (compare.collation.benchmark.tables.pl) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Lucene tags/keywords

argv, argv, icu4j, icu4j, improvement, keywordanalyzer, language, license, license, patched, see, the, unpatched, unpatched

The Lucene compare.collation.benchmark.tables.pl source code

#!/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.collation.benchmark.jira.tables.pl
#
# Takes as cmdline parameters two JIRA-formatted benchmark results, as produced
# by bm2jira.pl (located in the same directory as this script), and outputs a
# third JIRA-formatted comparison table, showing the differences between two
# benchmarking runs' java.text and ICU4J columns, after accounting for the
# KeywordAnalyzer column; the "ICU4J Improvement" column is ignored.
#
# The difference is calculated as a percentage:
#
#   100 * (patched-rate - unpatched-rate / unpatched-rate)
#
# where the (un)patched-rate is:
#
#   1 / ( elapsed-(un)patched-time - elapsed-KeywordAnalyzer-time)
#

use strict;
use warnings;

my $usage = "Usage: $0 <unpatched-file> \n";

die $usage unless ($#ARGV == 1 && -f $ARGV[0] && -f $ARGV[1]);

my %stats = ();

open UNPATCHED, "<$ARGV[0]" || die "ERROR opening '$ARGV[0]': $!";
while (<UNPATCHED>) {
  # ||Language||java.text||ICU4J||KeywordAnalyzer||ICU4J Improvement||
  # |English|4.51s|2.47s|1.47s|204%|
  next unless (/^\|([^|]+)\|([^|s]+)s\|([^|s]+)s\|([^|s]+)s/);
  my ($lang, $jdk_elapsed, $icu_elapsed, $keyword_analyzer_elapsed)
    = ($1, $2, $3, $4);
  $stats{unpatched}{$lang}{jdk} = $jdk_elapsed;
  $stats{unpatched}{$lang}{icu} = $icu_elapsed;
  $stats{unpatched}{$lang}{keyword_analyzer} = $keyword_analyzer_elapsed;
}
close UNPATCHED;

open PATCHED, "<$ARGV[1]" || die "ERROR opening '$ARGV[1]': $!";
while (<PATCHED>) {
  # ||Language||java.text||ICU4J||KeywordAnalyzer||ICU4J Improvement||
  # |English|4.51s|2.47s|1.47s|204%|
  next unless (/^\|([^|]+)\|([^|s]+)s\|([^|s]+)s\|([^|s]+)s/);
  my ($lang, $jdk_elapsed, $icu_elapsed, $keyword_analyzer_elapsed)
    = ($1, $2, $3, $4);
  $stats{patched}{$lang}{jdk} = $jdk_elapsed;
  $stats{patched}{$lang}{icu} = $icu_elapsed;
  $stats{patched}{$lang}{keyword_analyzer} = $keyword_analyzer_elapsed;
}
close PATCHED;

print "||Language||java.text improvement||ICU4J improvement||\n";
for my $lang (sort keys %{$stats{unpatched}}) {
  my $keyword_analyzer1 = $stats{unpatched}{$lang}{keyword_analyzer};
  my $jdk1 = $stats{unpatched}{$lang}{jdk};
  my $jdk_diff1 = $jdk1 - $keyword_analyzer1;
  my $icu1 = $stats{unpatched}{$lang}{icu};
  my $icu_diff1 = $icu1 - $keyword_analyzer1;

  my $keyword_analyzer2 = $stats{patched}{$lang}{keyword_analyzer};
  my $jdk2 = $stats{patched}{$lang}{jdk};
  my $jdk_diff2 = $jdk2 - $keyword_analyzer2;
  my $icu2 = $stats{patched}{$lang}{icu};
  my $icu_diff2 = $icu2 - $keyword_analyzer2;

  my $jdk_impr 
    = int((1./$jdk_diff2 - 1./$jdk_diff1) / (1./$jdk_diff1) * 1000 + 5) / 10;
  my $icu_impr
    = int((1./$icu_diff2 - 1./$icu_diff1) / (1./$icu_diff1) * 1000 + 5) / 10;

  printf "|$lang|%2.1f%%|%2.1f%%|\n", $jdk_impr, $icu_impr;
}

Other Lucene examples (source code examples)

Here is a short list of links related to this Lucene compare.collation.benchmark.tables.pl source code file:

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