Re: [PATCH 01/10] random: make 'add_interrupt_randomness()' dosomething sane

From: Theodore Ts'o
Date: Thu Jul 05 2012 - 19:21:48 EST

On Thu, Jul 05, 2012 at 05:31:22PM -0500, Matt Mackall wrote:
> On systems with a timer interrupt and a sched_clock() that's
> asynchronous to it, this actually loses a great source of entropy for
> headless systems. Also: extra branch in fast path.
> It's better to mix and not credit than to not mix at all. Instead just
> check the fast count against HZ before the credit.

I'm not sure what you mean by this?

- Ted
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