#8313 NORM Not Tri: Can OFW save-nand be made to go faster?

Zarro Boogs per Child bugtracker at laptop.org
Fri Sep 5 04:18:20 EDT 2008


#8313: Can OFW save-nand be made to go faster?
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   Reporter:  thomaswamm           |       Owner:  wmb at firmworks.com                
       Type:  enhancement          |      Status:  new                              
   Priority:  normal               |   Milestone:  Not Triaged                      
  Component:  ofw - open firmware  |     Version:  Development build as of this date
 Resolution:                       |    Keywords:                                   
Next_action:  communicate          |    Verified:  0                                
  Blockedby:                       |    Blocking:                                   
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Comment(by wmb at firmworks.com):

 Your results are unusual, I think.  I just did a save-nand of a 436 MB
 image in less than 10 minutes.  Your 10-minute restore time is a bit long
 too; I'm used to times in the 4-5 minute range.

 I used a SanDisk Cruzer Mini 1 GB stick.

 I don't suppose that your USB storage device is being detected as USB 1.1
 perchance?

 There is some room for improvment in OFW's USB disk driver, but it's not
 likely ever to keep up with Windows, which has a multithreaded interrupt
 driven disk subsystem and is probably running on a faster processor.
 OFW's driver is optimized for simplicity so that when the hardware isn't
 working right, debugging is reasonably possible.

-- 
Ticket URL: <http://dev.laptop.org/ticket/8313#comment:2>
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