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From Daniel Noll <>
Subject Re: Indexing Speed: 2.3 vs 2.2 (real world numbers)
Date Tue, 05 Feb 2008 04:56:37 GMT
On Monday 04 February 2008 21:51:39 Michael McCandless wrote:
> Even pre-2.3, you should have seen gains by adding threads, if indeed
> your hardware has good concurrency.
> And definitely with the changes in 2.3, you should see gains by
> adding threads.

With regards to this, I have been wondering: are there still huge performance 
benefits with using N threads on N IndexWriters, vs. using N threads on a 
single IndexWriter?  Or have the optimisations in version 2.3 closed the gap 
for this?


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