From: "Theodore Ts'o" <tytso@mit.edu>
To: George Spelvin <linux@horizon.com>,
andi@firstfloor.org, ahferroin7@gmail.com, jepler@unpythonic.net,
linux-kernel@vger.kernel.org, linux@rasmusvillemoes.dk
Subject: Re: Updated scalable urandom patchkit
Date: Sat, 10 Oct 2015 22:53:15 -0400 [thread overview]
Message-ID: <20151011025315.GB5341@thunk.org> (raw)
In-Reply-To: <20151011023146.GA5341@thunk.org>
On Sat, Oct 10, 2015 at 10:31:46PM -0400, Theodore Ts'o wrote:
> To that end, Andi, can you try benchmarking the scalability of the
> patch below? I really hope it will be good enough, since besides
> using less memory, there are security advantages in not spreading the
> entropy across N pools.
Andi, I forgot to menion --- if you could benchmark using both on your
"run get_entropy() in a tight loop" and the actual real-life
application --- since if is CPU cache behavior is going to be a large
factor in the results, a real application is going to be more
representative that a micro-benchmark, that would be much appreciated.
Thanks!
- Ted
next prev parent reply other threads:[~2015-10-11 2:53 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-10 18:45 Updated scalable urandom patchkit George Spelvin
2015-10-11 2:31 ` Theodore Ts'o
2015-10-11 2:53 ` Theodore Ts'o [this message]
2015-10-11 4:35 ` George Spelvin
2015-10-11 22:25 ` Theodore Ts'o
2015-10-12 0:16 ` George Spelvin
2015-10-12 4:05 ` Theodore Ts'o
2015-10-12 7:49 ` George Spelvin
2015-10-12 13:54 ` Theodore Ts'o
2015-10-12 20:30 ` George Spelvin
2015-10-12 20:34 ` George Spelvin
2015-10-13 2:46 ` Theodore Ts'o
2015-10-13 3:50 ` Raymond Jennings
2015-10-13 7:50 ` George Spelvin
2015-10-13 6:24 ` George Spelvin
2015-10-13 16:20 ` Andi Kleen
2015-10-13 21:10 ` George Spelvin
2015-10-14 2:15 ` Andi Kleen
2015-10-16 5:28 ` [RFC PATCH 0/4] Alternate sclable urandom patchset George Spelvin
2015-10-16 5:29 ` [RFC PATCH 1/4] random: Reduce stack usage in _xfer_secondary_pool George Spelvin
2015-10-16 5:30 ` [RFC PATCH 2/4] random: Remove two unused arguments from extract_entropy() George Spelvin
2015-10-16 5:33 ` [RFC PATCH 3/4] random: Only do mixback once per read George Spelvin
2015-10-16 6:12 ` kbuild test robot
2015-10-16 8:11 ` George Spelvin
2015-10-16 6:23 ` kbuild test robot
2015-10-16 5:34 ` [RFC PATCH 4/4] random: Make non-blocking mixback non-blocking George Spelvin
2015-10-21 8:27 ` Updated scalable urandom patchkit George Spelvin
2015-10-21 11:47 ` Andi Kleen
2015-10-21 18:10 ` George Spelvin
-- strict thread matches above, loose matches on Subject: below --
2015-09-24 17:19 Andi Kleen
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