From: Rui Salvaterra <rsalvaterra@gmail.com>
To: "Michael Büsch" <m@bues.ch>
Cc: Larry Finger <Larry.Finger@lwfinger.net>,
linux-wireless@vger.kernel.org, b43-dev@lists.infradead.org
Subject: Re: [BUG?] b43: can't connect to WPA3 network (nohwcrypt=1)
Date: Thu, 21 May 2020 12:30:43 +0100 [thread overview]
Message-ID: <CALjTZvan46UTwcUxOSN=RiE6XHm-29Ln8B6wiv40V_RVxWewtA@mail.gmail.com> (raw)
In-Reply-To: <20200521124608.4b5c78f2@wiggum>
Hi, Michael,
On Thu, 21 May 2020 at 11:46, Michael Büsch <m@bues.ch> wrote:
>
> Great. Thank you for testing.
>
> Should we consider defaulting hwcrypto to off?
IMHO, not without testing. See below. :)
> I wonder what the performance penalty is, if any, on today's CPUs
> that have some HW-crypto embedded. Of course that depends on whether we
> actually use that here.
>
> Could we have some benchmarks (throughput and CPU load wise)?
I'm preparing to do some performance tests as we speak. Nothing too
elaborate, just transferring a file over NFS and having a look at the
CPU usage, with both hardware crypto enabled/disabled (while I
initially thought of doing it over SFTP, the crypto overhead will
surely overwhelm this system). Do you suggest a more scientifically
acceptable test?
Also note that this a PowerPC laptop (iBook G4). This means it's using
the generic C crypto algorithms, there are no SIMD (VMX/AltiVec)
implementations of AES and friends on PowerPC, at least from what I've
seen in the kconfig.
Thanks,
Rui
next prev parent reply other threads:[~2020-05-21 11:30 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-19 14:18 [BUG?] b43: can't connect to WPA3 network (nohwcrypt=1) Rui Salvaterra
2020-05-19 20:30 ` Larry Finger
2020-05-19 20:36 ` Rui Salvaterra
2020-05-19 23:13 ` Rui Salvaterra
2020-05-20 0:16 ` Larry Finger
2020-05-20 8:24 ` Rui Salvaterra
2020-05-20 10:55 ` Rui Salvaterra
2020-05-20 20:08 ` Larry Finger
2020-05-20 20:28 ` Rui Salvaterra
2020-05-20 20:56 ` Larry Finger
2020-05-21 8:35 ` Rui Salvaterra
2020-05-21 9:07 ` Rui Salvaterra
2020-05-21 10:46 ` Michael Büsch
2020-05-21 11:30 ` Rui Salvaterra [this message]
2020-05-21 11:40 ` Michael Büsch
2020-05-21 14:10 ` Larry Finger
2020-05-21 14:52 ` Rui Salvaterra
2020-05-21 16:17 ` Rui Salvaterra
2020-05-21 18:59 ` Larry Finger
2020-05-21 19:19 ` Rui Salvaterra
2020-05-21 20:23 ` Rui Salvaterra
2020-05-21 21:47 ` Larry Finger
2020-05-22 10:19 ` Michael Büsch
2020-05-22 11:49 ` Kalle Valo
2020-05-22 13:46 ` Rui Salvaterra
2020-05-22 18:02 ` Larry Finger
2020-05-22 20:04 ` Rui Salvaterra
2020-05-22 20:40 ` Rui Salvaterra
2020-05-22 21:06 ` Larry Finger
2020-05-23 0:35 ` Rui Salvaterra
2020-05-23 21:17 ` Rafał Miłecki
2020-05-25 6:56 ` Kalle Valo
2020-05-22 17:15 ` Larry Finger
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