On Tue, 2002-07-16 at 12:31, Joe Thornber wrote: > > Joe, are you absolutely sure these tests had the disk cache disabled? That's > > the only hardware thing I can think of that would make a difference. > > Absolutely sure. Those figures were for a pair of PVs that were > sharing an IDE cable so I can certainly get things moving faster. Some IDE drives ignore commands to turn off the write back cache, or turn it back on when load gets high. Try iozone -s 50M -i 0 -o with writeback on and off. If you get the same answer the benchmarks are suspect.... -chris _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
