[U-Boot] USB storage performance EHCI question
Wolfgang Denk
wd at denx.de
Thu Jan 13 07:09:16 CET 2011
Dear Aaron Williams,
In message <201101121955.04367.Aaron.Williams at caviumnetworks.com> you wrote:
> I just got EHCI support working with our chip and I was wondering what sort of
> performance I could expect using ext2? Right now it seems extremely slow
> coming off of a fast solid-state drive. I'm getting around 100KB/second. It's
> running at full-speed (480Mbps). Is this normal?
As you don't provide any of the important information let me guess:
this is on an ARM board, and you are using U-Boot version v2010.09 or
older? If this is true then yes, this is to be expected.
Hm... I just notice the "caviumnetworks" in your address, so this is
probably MIPS? Check if your caches are turned on...
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
The universe, they said, depended for its operation on the balance of
four forces which they identified as charm, persuasion, uncertainty
and bloody-mindedness. -- Terry Pratchett, "The Light Fantastic"
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