On Tue, 2011-11-29 at 13:50 -0800, Boaz Harrosh wrote: > On 11/29/2011 01:34 PM, Boaz Harrosh wrote: > > But just do the above and you'll see that it is perfect. > > > > BTW don't limit the lo_segment size by the max_io_size. This is why you > > have .bg_test to signal when IO is maxed out. > > > > - The read segments should be as big as possible (i_size long) > > - The Write segments should ideally be as big as the Application > > wants to write to. (Amount of dirty pages at time of nfs-write-out > > is a very good first approximation). > > > > So I guess it is: I hate these patches, to much mess, too little goodness. > > > > Thank > > Boaz > > > > Ho and one more thing. > > Also Files when they will support segments and servers that request segments, > like the CEPH server, will very much enjoy the above, .i.e: Tell me the amount > you know you want to write. Why would we want to add segment support to the pNFS files client??? Segments are a nuisance that multiply the amount of unnecessary chitchat between the client and the MDS without providing any tangible benefits... -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@xxxxxxxxxx www.netapp.com -- 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
