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    DateTue, 29 Jun 2004 14:59:10 +1000
    FromLincoln Dale <>
    SubjectRe: 2.6.7 tiobench results for 3ware 9500 system
    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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