On Tue, Aug 21, 2007 at 06:06:19PM -0700, Christoph Lameter wrote: > Ok. Measurements vs. simple cmpxchg on a Intel(R) Pentium(R) 4 CPU 3.20GHz
Note the P4 is a extreme case in that "unusual" instructions are quite slow (basically anything that falls out of the trace cache). Core2 tends to be much more benign and generally acts more like a K8 in latencies. There are millions and millions of P4s around of course and we shouldn't disregard them, but they're not the future and not highest priority. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
