[EMAIL PROTECTED] wrote on Fri, 21 Jul 2006 22:48 +0200:
> @Pete
> Are the read/write throughput of 100MByte/75MByte for read and write below
> the
> raid systems capabilities ? Should be more like 150 MByte ?
> There are a lot of thinks which might help...
I'm getting 200 MB/s write and 75 MB/s read today on the same node
that ran your 150 GB tests, using a single thread O_DIRECT dd.
Things such as controller firmware have changed since we wrote the
paper a couple years back, so not sure what the real "not to exceed"
number is anymore.
xio24$ sg_dd of=/dev/null if=test0 bs=8m count=4096 odir=1 time=1
time to transfer data was 165.573077 secs, 207.52 MB/sec
xio24$ sg_dd if=/dev/zero of=test0 bs=8m count=4096 odir=1 time=1
time to transfer data was 459.580579 secs, 74.76 MB/sec
-- Pete
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