[linuxsh-dev] Re: Slow 32 bytes long "mov" delta - Hitachi SH4(7750),SolutionEngine(MS7750SE01E)

[kaz K. <kk...@rr...>]

Vladimir Doukhanine <vdo...@wa...> wrote:
>> Vladimir Doukhanine <vdo...@wa...> wrote:
>>> If I copy data from one place to another after each megabyte (delta
>>> between src and dst)
>>> there is some kind of "black hole" 32 bytes long in which processor
>>> works 15 times
>>> slower.
>> 
>> Which version of kernel are you testing?
>
> 2.4.5

2.4.5 kernel has SH-4 cache and other problems. Can you please
get and test newer kernel?

	kaz