On Thu, 2009-06-04 at 16:43 -0400, Brian R Cowan wrote: > What I'm trying to understand is why RHEL 4 is not flushing anywhere near > as often. Either RHEL4 erred on the side of not writing, and RHEL5 is > erring on the opposite side, or RHEL5 is doing unnecessary flushes... I've > seen that 2.6.29 flushes less than the Red hat 2.6.18-derived kernels, but > it still flushes a lot more than RHEL 4 does. Most of that increase is probably mainly due to the changes to the way stat() works. More precisely, it would be due to this patch: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git&a=commitdiff&h=70b9ecbdb9c5fdc731f8780bffd45d9519020c4a which went into Linux 2.6.16 in order to fix a posix compatibility issue. Trond -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
