Messages in this thread | | | Date | Fri, 27 Apr 2007 20:49:28 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: [00/17] Large Blocksize Support V3 |
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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.
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