<michael <at> estone.ca> writes: > Running some bonnie++ benchmarks gave extra slow write results on > /dev/md_d0p1. > but the same tests on /dev/md_d0p2 are normal. Read results are approx > the same on both partitions, but only writes are half as fast on p1 > then p2.
Same problem. But I wasn't as bad as you with my benchmarks. I had ~100MB/s on the second partition and about 72MB/s on the first one. > I'm not quite sure why I'm getting these results. Any ideas to > what could be wrong, or what to look for? What could be wrong : no. What to look for : yes. Try to make your first partition to begin at cylinder 2 instead of cylinder 1 (with fdisk, or whatever). ----- About using LVM, I really couldn't get the same performance than with partitions : I tried a lot of different configurations when I made my logical volumes, but none worked. Does someone have an idea about what could be wrong ? Thanks :) Here are my benchmarks : # dd if=/dev/md0 of=/dev/null bs=100M count=20 20+0 records in 20+0 records out 2097152000 bytes (2.1 GB) copied, 9.58494 seconds, 219 MB/s dd if=/dev/raidvol1/data1 of=/dev/null bs=100M count=20 20+0 records in 20+0 records out 2097152000 bytes (2.1 GB) copied, 12.396 seconds, 169 MB/s # dd if=/dev/raidvol1/data2 of=/dev/null bs=100M count=20 20+0 records in 20+0 records out 2097152000 bytes (2.1 GB) copied, 13.4758 seconds, 156 MB/s # dd if=/dev/raidvol1/home1 of=/dev/null bs=100M count=20 20+0 records in 20+0 records out 2097152000 bytes (2.1 GB) copied, 17.7541 seconds, 118 MB/s -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
