On 25 July 2018 at 11:48, Dave Martin wrote:
> On Wed, Jul 25, 2018 at 10:11:42AM +0100, Ard Biesheuvel wrote:
>> On 25 July 2018 at 11:05, Dave Martin wrote:
>> > On Tue, Jul 24, 2018 at 06:12:21PM +0100, Ard Biesheuvel wrote:
>> >> As reported by Vakul, checking the TIF_NEED_RESCHED flag after
On Wed, Jul 25, 2018 at 10:11:42AM +0100, Ard Biesheuvel wrote:
> On 25 July 2018 at 11:05, Dave Martin wrote:
> > On Tue, Jul 24, 2018 at 06:12:21PM +0100, Ard Biesheuvel wrote:
> >> As reported by Vakul, checking the TIF_NEED_RESCHED flag after every
> >> iteration of the GHASH and AES-GCM core
On 25 July 2018 at 11:05, Dave Martin wrote:
> On Tue, Jul 24, 2018 at 06:12:21PM +0100, Ard Biesheuvel wrote:
>> As reported by Vakul, checking the TIF_NEED_RESCHED flag after every
>> iteration of the GHASH and AES-GCM core routines is having a considerable
>> performance impact on cores such
On Tue, Jul 24, 2018 at 06:12:21PM +0100, Ard Biesheuvel wrote:
> As reported by Vakul, checking the TIF_NEED_RESCHED flag after every
> iteration of the GHASH and AES-GCM core routines is having a considerable
> performance impact on cores such as the Cortex-A53 with Crypto Extensions
>
On 25 July 2018 at 09:27, Ard Biesheuvel wrote:
> (+ Mark)
>
> On 25 July 2018 at 08:57, Vakul Garg wrote:
>>
>>
>>> -Original Message-
>>> From: Ard Biesheuvel [mailto:ard.biesheu...@linaro.org]
>>> Sent: Tuesday, July 24, 2018 10:42 PM
>>> To: linux-crypto@vger.kernel.org
>>> Cc:
(+ Mark)
On 25 July 2018 at 08:57, Vakul Garg wrote:
>
>
>> -Original Message-
>> From: Ard Biesheuvel [mailto:ard.biesheu...@linaro.org]
>> Sent: Tuesday, July 24, 2018 10:42 PM
>> To: linux-crypto@vger.kernel.org
>> Cc: herb...@gondor.apana.org.au; will.dea...@arm.com;
>>
On 2018-07-25 07:04:55 [+], Vakul Garg wrote:
> >
> > What about PREEMPT_NONE (server)?
>
> Why not have best of both the worlds :)
the NEON code gets interrupted because another tasks wants to schedule
and the scheduler allows. With "low latency desktop" this gets right
done away. The
arm.com
> Subject: Re: [PATCH 1/4] crypto/arm64: ghash - reduce performance impact
> of NEON yield checks
>
> On 2018-07-25 06:57:42 [+], Vakul Garg wrote:
> > I tested this patch. It helped but didn't regain the performance to previous
> level.
> > Are there more file
On 2018-07-25 06:57:42 [+], Vakul Garg wrote:
> I tested this patch. It helped but didn't regain the performance to previous
> level.
> Are there more files remaining to be fixed? (In your original patch series
> for adding
> preemptability check, there were lot more files changed than this
> -Original Message-
> From: Ard Biesheuvel [mailto:ard.biesheu...@linaro.org]
> Sent: Tuesday, July 24, 2018 10:42 PM
> To: linux-crypto@vger.kernel.org
> Cc: herb...@gondor.apana.org.au; will.dea...@arm.com;
> dave.mar...@arm.com; Vakul Garg ;
> bige...@linutronix.de; Ard Biesheuvel
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