> Yes, this was my intended point. Please see my quoted text above and
> note the "exclusive cache line acquisition" with emphasis on the word
> "acquisition" meaning you don't have the cache line in E state yet.
See prefetching - the CPU prefetching will hide some of the effect and
the spin_lock_prefetch() macro does wonders for the rest.
Alan
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Sep 30 2001 - 21:00:55 EST