[Linux-ia64] Re: ia64 cache flushing?

David Mosberger
2002-12-17T02:15:28Z

>>>>> On Tue, 17 Dec 2002 13:11:46 +1100, Rusty Russell <rusty@rustcorp.com.au> said:

Rusty> if (owner = me) should do this.

Rusty> On top of your patch and my previous, this works!

Good to see that.

For someone who cares about modules and ia64 performance: you might
want to consider to use "brl" in the PLT stub instead of the
standardized code sequence. That would avoid an indirect branch and
associated mis-prediction penalties. (Of course, this would be for
McKinley and later CPUs only as Merced doesn't implement "brl" in
hardware).

--david