On Sat, 28 Apr 2007, David Chinner wrote: > > 1-disk and 2-disk read throughput fell by an improbable amount, which makes > > me cautious about the other numbers. > > For read, yes, and it's because something is going wrong with the > I/O size - it looks like readahead thrashing of some kind even > with 4k pages tests.
Yup. I seem to have a problem in that area with my patches. Somehow the nr of page is shifted by page order. I do not completely understand what is going on there yet. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/