#9688 NORM 1.5-sof: terrible SD write performance

Zarro Boogs per Child bugtracker at laptop.org
Thu Nov 26 01:15:32 EST 2009


#9688: terrible SD write performance
--------------------------------+-------------------------------------------
           Reporter:  dsd       |       Owner:  wad         
               Type:  defect    |      Status:  closed      
           Priority:  normal    |   Milestone:  1.5-software
          Component:  hardware  |     Version:  1.5-B2      
         Resolution:  wontfix   |    Keywords:  sd          
        Next_action:  diagnose  |    Verified:  0           
Deployment_affected:            |   Blockedby:              
           Blocking:            |  
--------------------------------+-------------------------------------------
Changes (by wad):

  * status:  new => closed
  * resolution:  => wontfix


Comment:

 We should add your test program to the SD card qualification process along
 with the SD wear leveling testing.

 I'm not happy with the performance of the Class 2 SD cards, but they
 generally perform better than JFFS2 on the XO-1, and without loading the
 processor.

 This is probably improved on Class 6 cards, but there is strong pressure
 on the laptop price right now, and we can't afford the extra couple of
 dollars.

-- 
Ticket URL: <http://dev.laptop.org/ticket/9688#comment:4>
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