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From Nicolas Guyot <sfni...@gmail.com>
Subject Re: lucene 4.3 seems to be much slower in indexing than lucene 3.6?
Date Fri, 26 Jul 2013 20:35:36 GMT
Hi Lisheng,

first of all, on all my test cases, i can assure you lucene 4.3 is way more
efficient than 3.6. Well after understanding and tweaking a few things ;)
second can you help us understanding what is indexed and how? like what
kind of fields? which merge policy ?...

Thanks,
Nicolas


On Fri, Jul 26, 2013 at 11:55 AM, Zhang, Lisheng <
Lisheng.Zhang@broadvision.com> wrote:

> **
>
> Hi,
>
> I did some basic performance testing, just use random number to generate
> text for indexing,
> below I attached source java code. The command I used are:
>
> java TestReal43 index -docCount 500 -start 1 -optimize true -luceneDir mmap
> java TestReal36 index -docCount 500 -start 1 -optimize true -luceneDir mmap
>
> The difference is NOT in optimization, I changed directory within (Simple,
> MMap, NIOFS),
> it does not make much difference, 43 is about 30~40% slower. I conducted
> test in Linux:
>
> Linux ec2usevmsstgamq 3.2.0-49-virtual #75-Ubuntu SMP Tue Jun 18 17:59:38
> UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
>
> Thanks very much for helps, Lisheng
>
>
>
>
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