linux-kernel - Re: [PATCH 01/10] random: make 'add_interrupt

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Message-ID: <20120706215958.GA3922@thunk.org>
Date:	Fri, 6 Jul 2012 17:59:58 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Eric Wustrow <ewust@...ch.edu>
Cc:	Linux Kernel Developers List <linux-kernel@...r.kernel.org>,
	torvalds@...ux-foundation.org, w@....eu, zakir@...ch.edu,
	greg@...ah.com, mpm@...enic.com, nadiah@...ucsd.edu,
	jhalderm@...ch.edu, tglx@...utronix.de, davem@...emloft.net,
	stable@...nel.org
Subject: Re: [PATCH 01/10] random: make 'add_interrupt_randomness()' do
 something sane

On Thu, Jul 05, 2012 at 03:01:12PM -0400, Eric Wustrow wrote:
> Will this do the long path in add_interrupt_randomness every 16 interrupts
> instead of 128?

Yes, but given that benchmarks didn't show any performance degradation
even under a worst case scenario (i.e., no interrupt mitigation, and a
crazy number of interrupts/second), I decided to leave things as they
are.

						- Ted
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