Hi,
I'd like to start on improving the methods in rng-simple to create the
RandomSource.
There are a few PRs outstanding but I think the discussion on this list
was that the new XoShiRo generators are OK. So I would like to merge the
following PRs:
RNG-82: Add XorShift1024StarPhi generator
RNG-70: Add new XoShiRo generators
Then use master to set a baseline for the construction speed. This can
be used to compare against the latest code to see how much the changes
have improved construction speed. Given the work will have a big effect
on generators with small state it would be good to have the new
generators in the baseline.
I note that the only tags in git are for releases. So the baseline can
be just a commit Id and I'll add it to the benchmark Jira RNG-72 for
reference.
There are also some other PRs to be discussed:
RNG-81: NumberFactory to sample all rationals between 0 and 1.
This one changes to the implementation in Open JDK for float and double
generation. I think this is OK to merge. It won't effect the baseline
but is good to get it into the next release.
RNG-78: Added a ThreadLocalRandomSource.
This works as a proof of concept. But it is all new files and so I'm
happy to leave that until it is decided exactly if and where to put it.
RNG-76: Added primitive long constructor to SplitMix64
This is something that will effect the benchmark so I'll merge it after.
It is a trivial change with a noticeable performance gain by avoiding
auto-boxing of the long seed.
Regards,
Alex
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