Re: 2.6.7 tiobench results for 3ware 9500 system

[Lincoln Dale]

At 01:48 PM 29/06/2004, Ben Greear wrote:
> I am trying to build a box that can handle streaming 2Gbps to disk for
> sustained periods of time.  I benchmarked a few different file systems
> and wanted to share the results.

for large amounts of data, you should ensure that your application opens 
the open using O_DIRECT.

i have no experience with 3ware controllers, but i have no problem 
sustaining 400MB/s (4gbit/s) to a Fibre Channel-attached JBOD with an 
in-house userspace-based application which maintains its own 
userspace-based filesystem on raw partitions (/dev/sd[b-w]).
using 15K RPM disks i can sustain 400MB/s using just 6 disk spindles and 
what amounts to predominantly sequential writes.


cheers,

lincoln.

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