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From Thomas Becker <thomas.bec...@net-m.de>
Subject Re: lucene 2.9.0RC4 slower than 2.4.1?
Date Wed, 16 Sep 2009 16:38:37 GMT
I suggest to find the root cause and then decide about the release. Tomorrow I
will spent the whole working day on the issue if no prio1 pops up.

Sadly I've to leave early today, since I'm moving to a new flat... :(

Uwe Schindler wrote:
> How should we proceed? Stop the final artifact build and voting or proceed
> with the release of 2.9? We waited so long and for most people it is faster
> than slower!
> 
> -----
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: uwe@thetaphi.de
> 
> 
>> -----Original Message-----
>> From: Mark Miller [mailto:markrmiller@gmail.com]
>> Sent: Wednesday, September 16, 2009 6:23 PM
>> To: java-user@lucene.apache.org
>> Subject: Re: lucene 2.9.0RC4 slower than 2.4.1?
>>
>> bq. I'll do some profiling now again and let you know the results.
>>
>> Great - it will be interesting to see the results. My guess, based on
>> the 2.9 new api profiling, is that your queries may not be agreeing with
>> some of the changes somehow. Along with the profiling, can you fill us
>> in on the query types you are using as well? (eg qualities)
>>
>> And grab invocations if its possible.
>>
>> --
>> - Mark
>>
>> http://www.lucidimagination.com
>>
>>
>>
>> Thomas Becker wrote:
>>> Tests run on tmpfs:
>>> config: impl=SeparateFile serial=false nThreads=4 iterations=100
>> bufsize=1024
>>> poolsize=2 filelen=18920301
>>> answer=850258539, ms=8090, MB/sec=935.4907787391842
>>> config: impl=ChannelFile serial=false nThreads=4 iterations=100
>> bufsize=1024
>>> poolsize=2 filelen=18920301
>>> answer=850258903, ms=39444, MB/sec=191.8700030422878
>>> config: impl=ChannelPread serial=false nThreads=4 iterations=100
>> bufsize=1024
>>> poolsize=2 filelen=18920301
>>> answer=850258903, ms=8504, MB/sec=889.9483066792098
>>> config: impl=PooledPread serial=false nThreads=4 iterations=100
>> bufsize=1024
>>> poolsize=2 filelen=18920301
>>> answer=850258903, ms=9585, MB/sec=789.5795931142409
>>>
>>> I did run some tests now with SimpleFSDirectory and MMapDirectory. Both
>> are
>>> faster than NIOFS and the response times improved. But it's still slower
>> than 2.4.
>>> I'll do some profiling now again and let you know the results.
>>>
>>> Thanks again for all the great support to all who've answered.
>>>
>>>
>>> Mark Miller wrote:
>>>
>>>> Can you run the following test on your RAMDISK?
>>>>
>>>> http://people.apache.org/~markrmiller/FileReadTest.java
>>>>
>>>> I've taken it from the following issue (in which NIOFSDirectory was
>>>> developed):
>>>> https://issues.apache.org/jira/browse/LUCENE-753
>>>>
>>>>
>>>
>>
>>
>>
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> 
> 
> 
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-- 
Thomas Becker
Senior JEE Developer

net mobile AG
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GERMANY

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