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Re: Userspace cycle counting for loongson?



Laurent GUERBY <laurent@guerby.net> writes:

> Hi,

Hi,

>
> I'd like to time some low level code, is there a way
> to count cycles in userspace for loongson processors
> running debian lenny?

You can try using the mips instruction rdhwr to get the cycle counter. I
didn't tested it but I think it should work.
I would have said oprofile too but unfortunately, it needs some special
care on kernel side before it can be used.

Arnaud


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