Artem Kuchin wrote:
Hmm. what kind of HDD, RAID or whatever are you using?
My raid pretty much sucks. It is build it on the intel motherboard
LSI Megaraid. But i still get 81Mb/sec when doing
dd if=/dev/ar0 of=/dev/null bs=1M
How much do you get on this?
geom_mirror on 2 desktop SATA drives, but the results of dd are pretty low:
# dd if=/dev/mirror/data of=/dev/null bs=1m count=1000
1000+0 records in
1000+0 records out
1048576000 bytes transferred in 17.817686 secs (58850290 bytes/sec)
As you can see, results with a single drive are better:
# dd if=/dev/ad4 of=/dev/null bs=1m count=1000
1000+0 records in
1000+0 records out
1048576000 bytes transferred in 16.219518 secs (64649023 bytes/sec)
Now i am lost. i get 81MB/sec on dd but still you get
File Copy 1024 bufsize 2000 maxblocks 3960.0 159513.0 402.8
and i get
File Copy 1024 bufsize 2000 maxblocks 3960.0 109313.0 276.0
The drives i use are Seagate 7200.10 (320Gb, SATA II, 16MB cache
with perpendicular heads)
How is it possible that you get 2x file copy perfomance ?
What's the matter?!
--
Artem
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