[U-Boot] non-blocking flash functions - is this possible/acceptable?
Jerry Van Baren
gerald.vanbaren at ge.com
Tue Oct 27 15:03:49 CET 2009
Jerry Van Baren wrote:
> Wolfgang Wegner wrote:
>> Hi,
>>
>> we have an update protocol that normally relies on data being
>> received while the previous block is written to flash.
[snip]
> My 2c: Overlapping data transfer with flash erase/write operations can
> be beneficial as it can reduce the programming time substantially.
> (Erase is less beneficial than write since erases don't happen as often
> and take a relatively long time, so the overlap optimization savings is
> a smaller percentage of the total erase time - Amdahl's Law.)
By the way, what sort of benefit do you see? What is your load time
with and without the non-blocking changes?
[snip]
>> Regards,
>> Wolfgang
Thanks,
gvb
More information about the U-Boot
mailing list