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Timo Tijhof 3bcc039e7a benchmarks: Add benchmarks for MapCacheLRU and HashBagOStuff 
Currently, HashBagOStuff leads in most benchmarks, except for
the --fill benchmark, where MapCacheLRU is faster on HHVM.
(by invoking with `PHP=hhvm mwscript maintenance/bench...`)

Run in MediaWiki-Vagrant (Debian Jessie) on MacBook Pro host.

$ benchmarkLruHash.php --count 50000 --construct
Running PHP 5.6.30-0+deb8u1:
- HashBagOStuff-construct (22% faster)
  total: 446.20ms (min: 0.01ms, median: 0.01ms, max: 2.09ms)
- MapCacheLRU-construct
  total: 575.31ms (min: 0.01ms, median: 0.01ms, max: 3.51ms)
Running PHP version 5.6.99-hhvm:
- HashBagOStuff-construct (13% faster)
  total: 124.70ms (min: 0.00ms, median: 0.00ms, max: 1.27ms)
- MapCacheLRU-construct
  total: 143.76ms (min: 0.00ms, median: 0.00ms, max: 2.01ms)

For MapCacheLRU, the main slowdown is its use of Wikimedia\Assert.
Removing that would make it faster than HashBagOStuff.

$ benchmarkLruHash.php --count 3000 --fill
Running PHP 5.6.30-0+deb8u1:
- HashBagOStuff-fill (22% faster)
  total: 10196.82ms (min: 2.91ms, median: 3.24ms, max: 9.51ms)
- MapCacheLRU-fill
  total: 13197.13ms (min: 3.92ms, median: 4.31ms, max: 9.90ms)
Running PHP version 5.6.99-hhvm:
- HashBagOStuff-fill
  total: 5700.37ms (min: 1.71ms, median: 1.85ms, max: 8.24ms)
- MapCacheLRU-fill (11% faster)
  total: 4986.90ms (min: 1.48ms, median: 1.62ms, max: 6.93ms)

Change-Id: Icd03f872dddb308f162c72674c8d2aa6092395e5
2017-07-27 21:40:42 +00:00
..
cssmin resourceloader: Add CSSMin benchmarks 2017-05-04 04:13:42 +00:00
australia-untidy.html.gz Add benchmarkTidy.php, to benchmark tidy drivers 2017-04-21 01:02:22 +00:00
bench_delete_truncate.php benchmarks: Report more metrics (min/max/median) 2017-04-20 04:54:32 +00:00
bench_HTTP_HTTPS.php benchmarks: Report more metrics (min/max/median) 2017-04-20 04:54:32 +00:00
bench_if_switch.php benchmarks: Report more metrics (min/max/median) 2017-04-20 04:54:32 +00:00
bench_strtr_str_replace.php benchmarks: Report more metrics (min/max/median) 2017-04-20 04:54:32 +00:00
bench_utf8_title_check.php benchmarks: Report more metrics (min/max/median) 2017-04-20 04:54:32 +00:00
bench_wfIsWindows.php benchmarks: Report more metrics (min/max/median) 2017-04-20 04:54:32 +00:00
bench_Wikimedia_base_convert.php benchmarks: Report more metrics (min/max/median) 2017-04-20 04:54:32 +00:00
benchmarkCSSMin.php resourceloader: Add CSSMin benchmarks 2017-05-04 04:13:42 +00:00
Benchmarker.php benchmarks: Add reporting of resource usage 2017-06-15 18:21:53 +01:00
benchmarkHooks.php benchmarks: Convert benchmarkHooks to use Benchmarker 2017-05-03 20:19:32 -07:00
benchmarkJSMinPlus.php benchmarks: Add benchmark for JSMinPlus 2017-06-27 22:17:39 +00:00
benchmarkLruHash.php benchmarks: Add benchmarks for MapCacheLRU and HashBagOStuff 2017-07-27 21:40:42 +00:00
benchmarkParse.php benchmarkParse: Add option to clear link cache 2016-09-14 23:57:16 -07:00
benchmarkPurge.php Convert all array() syntax to [] 2016-02-17 01:33:00 -08:00
benchmarkTidy.php Add benchmarkTidy.php, to benchmark tidy drivers 2017-04-21 01:02:22 +00:00
README Add benchmarkTidy.php, to benchmark tidy drivers 2017-04-21 01:02:22 +00:00

README 

This directory hold several benchmarking scripts used as a proof of speed
or to track PHP performances over time.

To get somehow accurate result, you might want to bound the PHP process
to a specific CPU with `taskset` and raise its priority with `nice`. Example:

 $ taskset 1 nice -n-10 php bench_wfIsWindows.php

australia-untidy.html.gz contains representative input text for
benchmarkTidy.php. It needs to be decompressed before use.