On Mon, Apr 12, 2010 at 06:23:58PM +0100, Will Deacon wrote: > This patch changes the definition of cpu_relax() to smp_mb() for ARMv6 cores, > forcing the write buffer to drain while inside a polling loop on an SMP > system. > If the Kernel is not compiled for SMP support, this will expand to a barrier() > as before.
Linus asked how expensive (in terms of power rather than performance) this was; so far that question has remained unanswered. Can someone please answer his question? ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Kgdb-bugreport mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kgdb-bugreport
