From: Arno Wagner <arno@wagner.name>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] Encryption speed and reversing the direction
Date: Tue, 25 Aug 2020 16:59:29 +0200 [thread overview]
Message-ID: <20200825145929.GA2811@tansi.org> (raw)
In-Reply-To: <20200825024450.GB810@sol.localdomain>
On Tue, Aug 25, 2020 at 04:44:50 CEST, Eric Biggers wrote:
> On Tue, Aug 25, 2020 at 02:05:35AM -0400, John Lee McMahon wrote:
[...]
> Also if you actually care about random number generation performance, you
> shouldn't be going through the kernel at all, except to read an initial
> seed.
[...]
Not anymore. /dev/urandom has pretty good performance now.
On my very old Phenom II fileserver, I get about 270MB/sec
with a 5.x kernel.
Regards,
Arno
--
Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@wagner.name
GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718
----
A good decision is based on knowledge and not on numbers. -- Plato
If it's in the news, don't worry about it. The very definition of
"news" is "something that hardly ever happens." -- Bruce Schneier
next prev parent reply other threads:[~2020-08-25 15:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-25 6:05 [dm-crypt] Encryption speed and reversing the direction John Lee McMahon
2020-08-25 2:44 ` Eric Biggers
2020-08-25 14:59 ` Arno Wagner [this message]
2020-08-25 17:10 ` Eric Biggers
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