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Posted to server-dev@james.apache.org by "ASF GitHub Bot (Jira)" <se...@james.apache.org> on 2021/01/02 06:55:00 UTC
[jira] [Commented] (JAMES-3487) Configure
MimeMessageInputStreamSource THRESHOLD
[ https://issues.apache.org/jira/browse/JAMES-3487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17257304#comment-17257304 ]
ASF GitHub Bot commented on JAMES-3487:
---------------------------------------
chibenwa edited a comment on pull request #285:
URL: https://github.com/apache/james-project/pull/285#issuecomment-753440706
I had been running a quick benchmark, sending 2000 mails of 100KB over 10 threads, on top of the distributed server. Here are the results:
| Code version | master | #286 |
|----------------|----------------|--------------------|
| 1 byte threshold | | |
| 100KB threshold | | 162s |
| 500 KB threshold | | |
I did not manage to evaluate heap impact.
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> Configure MimeMessageInputStreamSource THRESHOLD
> ------------------------------------------------
>
> Key: JAMES-3487
> URL: https://issues.apache.org/jira/browse/JAMES-3487
> Project: James Server
> Issue Type: Improvement
> Components: James Core
> Reporter: Benoit Tellier
> Priority: Major
>
> This represents the point at which we should switch from a memory storage into a file storage.
> Defaults is 100 Kb.
> Obviously this parameter is important:
> - Higher values will operate mostly in-memory thus will have low latencies but will trash the heap and might trigger a GC hell.
> - Lower values will defensively operate on files. Higher latencies but predictable throughtput. Modern SSDs and FS cache should enable to keep up with high rates.
> Optimally we should have some bench showing the impact of this parameter.
> Related to JAMES-3477.
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