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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 05-14-2013, 10:12 PM   #1
jinxin16897123
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Registered: Aug 2011
Location: Shanghai,China
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uncompressing linux... cost too long


Hi ,all
I've compiled the kernel which the version is 2.6.38.8,after burn the image to flash, found that, the period between "Uncompressing linux..." and "done,booting the kernel" cost too long ,almost cost 15 seconds. I've tried other version, eg, 3.2.43, only cost 1 seconds.
Could you there give any advice?
Thank you very much.
 
Old 05-15-2013, 04:30 PM   #2
teckk
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Depends on a lot of things. Like how fast a processor-machine that you have, what you compiled into the kernel. Also are you booting from flash, that will take a while.

How big is your kernel image? What distribution are you using? Are you booting it from Hard drive or flash drive?
 
Old 05-15-2013, 08:01 PM   #3
jinxin16897123
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Registered: Aug 2011
Location: Shanghai,China
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It's based on the Marvell pxa310 ,624Mhz, which using nandflash. I consider there only memory operations will get into business while From "Uncompressing linux..." to "done, booting the kernel", in the period, did the kernel operate the flash or something else?
Thanks.
 
  


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