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fluent-plugin-parser を用いてベンチマークするサンプルです
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require_relative './test/helper' | |
require 'benchmark' | |
Fluent::Test.setup | |
def create_driver(config, tag = 'foo.bar') | |
Fluent::Test::OutputTestDriver.new(Fluent::ParserOutput, tag).configure(config) | |
end | |
# setup | |
time = Time.now.to_i | |
CONFIG = %[ | |
add_prefix parsed | |
key_name message | |
] | |
ltsv_message = {'message' => "time:2013-11-20 23:39:42 +0900\tlevel:ERROR\tmethod:POST\turi:/api/v1/people\treqtime:3.1983877060667103"} | |
ltsv_driver = create_driver(CONFIG + %[format ltsv]) | |
tsv_message = {'message' => "2013-11-20 23:39:42 +0900\tERROR\tPOST\t/api/v1/people\t3.1983877060667103"} | |
tsv_driver = create_driver(CONFIG + %[format tsv\nkeys time,level,method,uri,reqtime]) | |
regex_message = {'message' => "time:2013-11-20 23:39:42 +0900\tlevel:ERROR\tmethod:POST\turi:/api/v1/people\treqtime:3.1983877060667103"} | |
regex_driver = create_driver(CONFIG + %[format /^(?<time>[^\t]*)(?<level>[^\t]*)(?<method>[^\t]*)(?<uri>[^\t]*)(?<reqtime>[^\t]*)/]) | |
apache2_message = {'message' => '172.21.65.11 - - [07/Jan/2014:16:09:26 +0900] "GET /mypage HTTP/1.1" 302 - "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.33 Safari/535.11"'} | |
fast_regex_driver = create_driver(CONFIG + %[format /^(?<host>[^ ]*) [^ ]* (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^ ]*) +\S*)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$/]) | |
greedy_regex_driver = create_driver(CONFIG + %[format /^(?<host>.*) .* (?<user>.*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>.*) +\S*)?" (?<code>.*) (?<size>.*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$/]) | |
apache2_ltsv_message = {'message' => 'host:172.21.65.11 user:- time:07/Jan/2014:16:09:26 +0900 method:GET path:/mypage code:302 size:- referer:- agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.33 Safari/535.11'} | |
# bench | |
n = 100000 | |
Benchmark.bm(7) do |x| | |
x.report("apache_ltsv") { ltsv_driver.run { n.times { ltsv_driver.emit(apache2_ltsv_message, time) } } } | |
x.report("fast_regex") { fast_regex_driver.run { n.times { fast_regex_driver.emit(apache2_message, time) } } } | |
x.report("greedy_regex") { greedy_regex_driver.run { n.times { greedy_regex_driver.emit(apache2_message, time) } } } | |
end | |
# user system total real | |
#apache_ltsv 27.210000 5.230000 32.440000 ( 33.003831) | |
#fast_regex 10.880000 1.060000 11.940000 ( 12.438561) | |
#greedy_regex 43.230000 0.850000 44.080000 ( 44.597733) |
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@y-ken そちらで追試したところ、確かに ltsv のほうが遅かったです。
$ bundle exec ruby benchmark.rb user system total real ltsv 17.870000 0.060000 17.930000 ( 17.994229) faster_regexp 11.350000 0.030000 11.380000 ( 11.430420) greedy_regexp 41.920000 0.110000 42.030000 ( 42.467583)
ただ、ベンチマークを次のように実際の parser と同じようにチューニングした所、ltsv のほうが早くなりました。=> https://gist.github.com/sonots/dd16bd7a65b7dd79f3c8
bundle exec ruby benchmark.rb user system total real ltsv 1.330000 0.000000 1.330000 ( 1.328088) faster_regexp 2.390000 0.010000 2.400000 ( 2.406384) greedy_regexp 31.560000 0.060000 31.620000 ( 31.788143)
うーん、LabeledTSVParser.new のコストが高いんですかね。
EDIT: parser.call をコメントアウトして prase しないベンチマークの結果がこちらです