Re: non-optimal RAID 5 performance with 8 drive array

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At 19.12 01/03/2005, Robin Bowes wrote:
Roberto Fichera wrote:
At 18.53 01/03/2005, Robin Bowes wrote:
[root@dude test]# dd if=/dev/zero of=/home/test/test.tmp bs=4096 count=100000
100000+0 records in
100000+0 records out


Notice there is no timing information.
you have to use:
time dd if=/dev/zero of=/home/test/test.tmp bs=4096 count=100000

Robert,

That's not what I meant - I know I can use "time" to get CPU usage information.

I was meaning that I don't get the disk speed summary like Nicola did, e.g.:

me@beast:$ dd if=/dev/zero of=/storagearray/test.tmp bs=4096
1238865+0 records in
1238864+0 records out
5074386944 bytes transferred in 63.475536 seconds (79942404 bytes/sec)

Opss!!! Sorry! May be some recent coreutils have this nice feature :-)!


R.
--
http://robinbowes.com

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Roberto Fichera.


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