[U-Boot] [RFC][PATCH 00/19] arm: add full relocation / cache support
Wolfgang Denk
wd at denx.de
Sat Aug 7 23:41:13 CEST 2010
Dear =?ISO-8859-1?Q?Matthias_Wei=DFer?=,
In message <4C5AAB4C.9010209 at arcor.de> you wrote:
>
> As my board is not mainlined (still waiting for any review on V5) this
> doesn't make sense from my point of view.
I just sent a few reviews to one of the patches. As soon as you
resubmit this patch, I'll pull the stuff into u-boot-arm and then into
mainline.
> Here are some numbers:
>
> Test: old (icache) new (i+d cache)
> image size 191k 204k x 1.06
> copy 32MB NOR -> RAM 7.0s 6.5s x 1.07
> iminfo of 1.2MiB image 0.5s 0.1s x 5.0
> bootm of 1.2MiB gz image 5.4s 0.5s x 10.8
> bootm of 0.8MiB lzma image 17.1s 1.5s x 11.4
> bootm of 1.6MiB lzo image 3.2s 0.2s x 16.0
>
> The three images have all the same payload. Just tested the three
> different compression methods.
>
> Boot time limit into application code is 5s so u-boot image compression
> was not an option. But now it is.
Indeed - that's an impressive set of results. Thanks for the testing.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Never ascribe to malice that which can adequately be explained by
stupidity.
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