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https://issues.apache.org/jira/browse/RNG-57?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16694802#comment-16694802
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Gilles commented on RNG-57:
---------------------------
{quote}Surely you also have scripts
{quote}
Yes, but it's all semi-manual: generating a JAR with all dependencies (from a
different POM), a script to start the runs, another to print out the number of
failures, copying/pasting each of them to the userguide. Tedious and not robust
(typos and all).
{quote}for RNG-29, then some more work should be done
{quote}
Indeed.
But the question is whether either you or I want to devote a lot of CPU time
to a massive run (see a [report|http://xoshiro.di.unimi.it/#shootout] from 100
runs).
Time might be better spent porting other RNGs (e.g. newer algorithms provided
at the above site).
> CachedUniformRandomProvider for nextBoolean() and nextInt()
> -----------------------------------------------------------
>
> Key: RNG-57
> URL: https://issues.apache.org/jira/browse/RNG-57
> Project: Commons RNG
> Issue Type: Improvement
> Components: core
> Reporter: Alex D Herbert
> Priority: Minor
> Labels: performance
> Fix For: 1.2
>
>
> Implement a wrapper around a {{UniformRandomProvider}} that can cache the
> underlying source of random bytes for use in the methods {{nextBoolean()}}
> and {{nextInt()}} (in the case of {{LongProvider}}). E.g.
> {code:java}
> LongProvider provider = RandomSource.create(RandomSource.SPLIT_MIX_64);
> CachedLongProvider rng = new CachedLongProvider(provider);
> // Uses cached nextLong() 64 times
> rng.nextBoolean();
> // Uses cached nextLong() twice
> rng.nextInt();
> IntProvider provider = RandomSource.create(RandomSource.KISS);
> CachedIntProvider rng2 = new CachedIntProvider(provider);
> // Uses cached nextInt() 32 times
> rng2.nextBoolean();
> // This could be wrapped by a factory method:
> UniformRandomProvider rng = CachedUniformRandomProviderFactory.wrap(
> // Any supported source: IntProvider or LongProvider
> RandomSource.create(RandomSource...));
> {code}
> The implementation should be speed tested to determine the benefit for
> {{nextBoolean()}} and if {{nextInt()}} can be improved for {{LongProviders}}.
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