From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] am335x: cpsw: optimize cpsw_recv to increase network performance
Date: Thu, 12 Dec 2013 08:39:47 -0500 [thread overview]
Message-ID: <52A9BCA3.8000903@ti.com> (raw)
In-Reply-To: <52A9B923.4020206@denx.de>
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On 12/12/2013 08:24 AM, Stefan Roese wrote:
> On 12.12.2013 14:20, Vladimir Koutny wrote:
>>
>> On 12/12/13 13:37, Tom Rini wrote:
>>> On 12/12/2013 03:34 AM, Stefan Roese wrote:
>>>> I just tested on dxr2 (AM3352 based board) with latest
>>>> mainline U-Boot. And the network performance is a bit better.
>>>> But not as good as yours. Here my numbers:
>>>
>>>> Without this patch: ~400 KiB/s With this patch: ~570 KiB/s
>>>
>>>> Any ideas what might be missing on my platform? Why the speed
>>>> is not as good?
>>>
>>> I only got a small increase as well until I also grabbed the
>>> dcache enable patch. I need to find some time today to clean
>>> out the TI queue again.
>>>
>>
>> Good point - indeed I had I/D caches enabled for other reasons
>> already (md5/sha1 caclulations, ..)
>
> Hmmm. I expected that caches are enabled already. Since I didn't
> see any "D-Cache disabled message" in the startup log.
>
> If this is not that case, then such cache support would be greatly
> appreciated. :)
Check your logs? Unless you've also got a patched tree you should see
"WARNING: Caches disabled" or so, because, yeah, oops, am335x got in
with caches disabled, and then I forgot about it.
- --
Tom
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next prev parent reply other threads:[~2013-12-12 13:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-28 9:38 [U-Boot] [PATCH] am335x: cpsw: optimize cpsw_recv to increase network performance Vladimir Koutny
2013-11-28 9:55 ` Mugunthan V N
2013-12-04 22:05 ` [U-Boot] " Tom Rini
2013-12-12 8:34 ` Stefan Roese
2013-12-12 12:37 ` Tom Rini
2013-12-12 13:20 ` Vladimir Koutny
2013-12-12 13:24 ` Stefan Roese
2013-12-12 13:39 ` Tom Rini [this message]
2013-12-12 13:45 ` Stefan Roese
2013-12-12 13:49 ` Tom Rini
2013-12-12 13:53 ` Stefan Roese
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