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From Yonik Seeley <yo...@lucidimagination.com>
Subject Re: lucene 2.9.0RC4 slower than 2.4.1?
Date Tue, 15 Sep 2009 19:49:46 GMT
Here's my results in my quad core phenom, with ondemand CPU freq
scaling disabled (clocks locked at 3GHz)

Ubuntu 9.04, filesystem=ext4 on 7200RPM IDE drive, testfile=95MB fully cached.

Linux odin 2.6.28-15-generic #49-Ubuntu SMP Tue Aug 18 19:25:34 UTC
2009 x86_64 GNU/Linux
Java(TM) SE Runtime Environment (build 1.6.0_14-b08)
Java HotSpot(TM) 64-Bit Server VM (build 14.0-b16, mixed mode)


config: impl=ClassicFile serial=false nThreads=4 iterations=20
bufsize=1024 poolsize=2 filelen=95610240
answer=1165427971, ms=15610, MB/sec=489.99482383087764

config: impl=SeparateFile serial=false nThreads=4 iterations=20
bufsize=1024 poolsize=2 filelen=95610240
answer=1165427672, ms=4115, MB/sec=1858.7652976913728

config: impl=PooledPread serial=false nThreads=4 iterations=20
bufsize=1024 poolsize=2 filelen=95610240
answer=1165427971, ms=6352, MB/sec=1204.15919395466

config: impl=ChannelFile serial=false nThreads=4 iterations=20
bufsize=1024 poolsize=2 filelen=95610240
answer=1165427971, ms=20347, MB/sec=375.91876935174713

config: impl=ChannelPread serial=false nThreads=4 iterations=20
bufsize=1024 poolsize=2 filelen=95610240
answer=1165427971, ms=5189, MB/sec=1474.0449412218154

config: impl=ChannelTransfer serial=false nThreads=4 iterations=20
bufsize=1024 poolsize=2 filelen=95610240
answer=1165427971, ms=14794, MB/sec=517.021711504664

-Yonik
http://www.lucidimagination.com

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