lucenenet-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Digy" <digyd...@gmail.com>
Subject RE: Lucene.Net 2.9 Uses Single Processor under Stress
Date Thu, 20 Jan 2011 17:45:12 GMT
You can also try to warm up the searcher before measuring the performance.

DIGY

-----Original Message-----
From: Anders Lybecker [mailto:anders@lybecker.com] 
Sent: Thursday, January 20, 2011 9:20 AM
To: lucene-net-user@lucene.apache.org
Subject: Re: Lucene.Net 2.9 Uses Single Processor under Stress

Hi,

Do you open the IndexReader/IndexSearcher in readonly mode?

:-)
Anders

On Wed, Jan 19, 2011 at 10:15 PM, Frank Yu <frank.yu@farpoint.com> wrote:

> Hi All,
>
> I met a strange situation that the Lucene.Net used only 1 processor on a
> quad dual-core processors machine when the search load exceeded a certain
> threshold (i.e., 35 searches per second). It took a few minutes before the
> load got distributed over all processors. When the load was below the
> threshold (i.e., 20 searches per second), all processors got used evenly.
>
> The used Lucene.net is v2.9 and the index size is about 4GB with 15
> millions
> of documents. There was no index update and the load was search only
> without
> any index update.
>
> Has anyone seen this kind of behavior before?
>
> Thanks a lot,
>
> Frank
>
>
>


Mime
View raw message