On Wed, Aug 18, 2010 at 07:50:40PM +0200, Andi Kleen wrote: > > - nfsd updates it whenever it reads an mtime out of an inode that matches > > current_fs_time to the granularity of 1/HZ. > > That means you have a very very hot cache line on a larger system > if there are a lot of mtime changes. Probably a bad idea. Only if those mtime changes are also followed immediately by nfsd reads of the mtime. That will be the typical case for nfsd writes, though. --b. -- 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
