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From: Dirk Behme <dirk.behme@googlemail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Starting compressed win CE kernel
Date: Fri, 04 Sep 2009 16:20:40 +0200	[thread overview]
Message-ID: <4AA12238.6020908@googlemail.com> (raw)
In-Reply-To: <20090904121700.66126832E8DE@gemini.denx.de>

Wolfgang Denk wrote:
> Dear "A. Geisreiter",
> 
> In message <001701ca2d55$f30b6200$d9222600$@de> you wrote:
>>> What makes you think that the uncompression code used by bootm would
>>> be any faster than the one used by unzip? It ain't faster, as it is
>>> the very same code actually.
>> If bootm use the same code like the unzip command, then it couldn't be
>> faster.
> 
> Indeed.
> 
>> But I have compressed a nk.bin Windows Image file with GZIP. Then I
>> uncompressed the 10MB File with U-Boot. It takes roughly 1 minute. And this
>> is to much I think. What could I do to reduce the uncompression time? My
>> hardware works with an PXA270 CPU.
> 
> You probably want to enable caches on your system, to get faster
> performance. Jean-Christophe (on Cc:) claimed several times before
> that he was working on such patches. Maybe you ask him when he will
> post this stuff.

Unfortunately, there was no answer to

http://lists.denx.de/pipermail/u-boot/2009-August/058700.html

Dirk

  reply	other threads:[~2009-09-04 14:20 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-04 10:14 [U-Boot] Starting compressed win CE kernel A. Geisreiter
2009-09-04 11:09 ` Wolfgang Denk
2009-09-04 11:50   ` A. Geisreiter
2009-09-04 12:17     ` Wolfgang Denk
2009-09-04 14:20       ` Dirk Behme [this message]
2009-10-05  7:47       ` A. Geisreiter

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