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https://issues.apache.org/jira/browse/SOLR-3585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445363#comment-13445363
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Mikhail Khludnev commented on SOLR-3585:
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Dmitry,
two threads speedup limit is reasonable to me - you have two ways chip
ark.intel.com/products/37255/Intel-Core2-Duo-Processor-T6600-(2M-Cache-2_20-GHz-800-MHz-FSB)
.
Key factor for enabling threads is cpu-idle time i.e. no gain is expected after
100% cpu usage.
Also, local streaming is a rare usage, I believe. Most time it's kind of remote
producer-consumer eg solrj, where proper level of utilization is challenging.
> processing updates in multiple threads
> --------------------------------------
>
> Key: SOLR-3585
> URL: https://issues.apache.org/jira/browse/SOLR-3585
> Project: Solr
> Issue Type: Improvement
> Components: update
> Affects Versions: 4.0-ALPHA
> Reporter: Mikhail Khludnev
> Priority: Minor
> Attachments: multithreadupd.patch, report.tar.gz, SOLR-3585.patch,
> SOLR-3585.patch
>
>
> Hello,
> I'd like to contribute update processor which forks many threads which
> concurrently process the stream of commands. It may be beneficial for users
> who streams many docs through single request.
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