I've heard good things about mwc-random (https://github.com/bos/mwc-random)

On Tue, Oct 10, 2017 at 5:48 PM, Kazu Yamamoto <kazu@iij.ad.jp> wrote:
Hello,

I'm preparing for a major release of the dns package version 3.0.0.
https://github.com/kazu-yamamoto/dns/issues/88

Before the release, I would like to replace the random package since
it is slow.  I'm looking for a random library which is
- fast
- thread-safe (good for concurrent use)

Any recommendations?

// Kazu
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