From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Renaud Barbier <Renaud.Barbier@ametek.com>,
Barebox List <barebox@lists.infradead.org>
Subject: Re: LS1021A performance
Date: Thu, 30 Mar 2023 13:45:39 +0200 [thread overview]
Message-ID: <9b5975a7-8b1d-0861-ce01-9206a3ddfc7d@pengutronix.de> (raw)
In-Reply-To: <BL0PR07MB5665003604A904B8AFBEB466EC8E9@BL0PR07MB5665.namprd07.prod.outlook.com>
Hello Renaud,
On 30.03.23 13:34, Renaud Barbier wrote:
> Hello,
> I am looking into the performance of the LS1021A between Linux and Barebox and a PPC P1014
> On Linux:
> [root@openware]# time md5sum /tmp/mtd0
> 26d8158619e5791859519654557aeeba /tmp/mtd0
>
> real 0m0.029s
> user 0m0.025s
> sys 0m0.001s
>
> This is almost a 20 fold difference.
>
> From my In-Circuit-Emulator, the cache is enabled on both Linux and Barebox. My guess it that it comes down how the MMU is used.
> Any input on how to speed up the boot loader would be appreciated.
Can you compare SHA256 instead and see if the difference is still as stark?
Make sure that CONFIG_DIGEST_SHA256_ARM is enabled.
Do barebox and Linux run at the same CPU frequency?
Cheers,
Ahmad
>
> Cheers,
> Renaud
>
>
>
>
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next prev parent reply other threads:[~2023-03-30 11:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-30 11:34 Renaud Barbier
2023-03-30 11:45 ` Ahmad Fatoum [this message]
2023-03-30 13:31 ` Renaud Barbier
2023-03-30 14:17 ` Lucas Stach
2023-03-30 15:17 ` Renaud Barbier
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