> So I don't dispute at all that "mutex with spinning" performs better than > a mutex, but I _do_ claim that it has some potentially huge downsides > compared to a real spinlock. It may perform as well as a spinlock in the > nice common case, but then when you hit the non-common case you see the > difference between well-written code and badly written code.
Make it mount-point dependant. Then your mail-spool can use the spinlock version and e.g. the /usr filesystem uses regular mutexes. Might be tricky to implement I guess. Folkert van Heusden -- MultiTail cok yonlu kullanimli bir program, loglari okumak, verilen kommandolari yerine getirebilen. Filter, renk verme, merge, 'diff- view', vs. http://www.vanheusden.com/multitail/ ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
