On Wed, Feb 24, 2010 at 12:43:56PM +0800, Wu Fengguang wrote: > On Wed, Feb 24, 2010 at 12:24:14PM +0800, Dave Chinner wrote: > > On Wed, Feb 24, 2010 at 02:29:34PM +1100, Dave Chinner wrote: > > > That's doing a cached read out of the server cache, right? You > > > might find the results are different if the server has to read the > > > file from disk. I would expect reads from the server cache not > > > to require much readahead as there is no IO latency on the server > > > side for the readahead to hide.... > > > > FWIW, if you mount the client with "-o rsize=32k" or the server only > > supports rsize <= 32k then this will probably hurt throughput a lot > > because then readahead will be capped at 64k instead of 480k.... > > I should have mentioned that in changelog.. Hope the updated one > helps. Sorry, my fault for not reading the code correctly. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- 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
