On Thu, Feb 16, 2012 at 12:50:57PM +0100, Assarsson, Emil wrote: > Hi, > > Are there any recommendations about how much memory I need based > on the size of the file system and/or amount of files? For > example: how much memory would be optimal for a 20TB file system > with 3000000 files? /me shrugs > I guess it depends on the usage pattern? Totally. > Is there any way to make sure that the file allocation table stays in the memory? What's a "file allocation table"? XFS doesn't have one. :) XFS does have a sophisticated metadata cache and reclaim scheme that keeps frequently referenced metadata hot in cache, but you as a user have very little control over that because the cache size is effectively controlled by memory pressure. i.e. it's size is completely workload dependent..... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
