On Tue, Mar 24, 2015 at 08:43:31AM -0400, Anna Schumaker wrote: > > I don't know, and don't have profiles. I'll either try to reproduce or > > wait till Anna's back from vacation. > > I'm using whatever functions NFSD already uses for reading files, > which I expect go through the VFS. Is there a flag that controls > cache behavior? There's the O_DIRECT flag, but that's not what I mean. If you just wrote to it it's a cached read, if you did unmount the filesystem after writing, or did an echo to /proc/sys/vm/drop_caches you get uncached read behavior. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs