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From Mark Miller <markrmil...@gmail.com>
Subject Re: lucene 2.9.0RC4 slower than 2.4.1?
Date Tue, 15 Sep 2009 20:00:15 GMT
I'm jealous of your 4 3.0Ghz to my 2.0Ghz.

I was on dynamic scaling frequency and switched to 2.0Ghz hard.

On ramdisk, my puny 2.0's almost catch you and get a bit over 1800MB/s
with SeparateFile.

I'm smoked on PooledPread and ChannelPread though. Still sub 500 for
both, even
on the ramdisk.

Its an absurd comparison though - everyone knows a jackalope is faster
than a koala.

- Mark

Yonik Seeley wrote:
> 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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>   


-- 
- Mark

http://www.lucidimagination.com




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