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https://issues.apache.org/jira/browse/AWF-60?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tony Stevenson moved DEFT-77 to AWF-60:
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Reporter: Niklas Gustavsson
Key: AWF-60 (was: DEFT-77)
Project: Apache AWF (was: Deft)
> Native arrays are inefficient in java
> -------------------------------------
>
> Key: AWF-60
> URL: https://issues.apache.org/jira/browse/AWF-60
> Project: Apache AWF
> Issue Type: Bug
> Reporter: Niklas Gustavsson
>
> Its expensive to allocate a native array because of a constraint/rule (in
> JLS) that says that a newly allocated array, e.g. byte[], must have each of
> its elements default initialized. (0 for byte)
> In org.deftserver.web.protocol.HttpResponse:
> private final static int WRITE_BUFFER_SIZE = 1500; // in bytes
> private DynamicByteBuffer responseData =
> DynamicByteBuffer.allocate(WRITE_BUFFER_SIZE);
> Changing this to 64/128 increased the performance (ab -k -c25 -n800000) by
> ~30%. (21 #/sec -> 27#sec, in 0.1.0/0.1.1 we used String concatenation, maybe
> thats why we saw that kind of performance)
> Did another quick try (with the changes mentiond above):
> In Application:
> private int readBufferSize = 128; // in bytes
> gave: 33905.68 [#/sec] (mean)
> (same ab execution)
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