I'm  using filebench to measure some NFS/RDMA performance, but I don't see the 
randomwrite scaling at all; I get the same thruput numbers whether using 1, 8, 
or 16 streams.  I'm using the same profiles for randomreads and they seem to 
scale as expected.

Sample .prof stanzas:
DEFAULTS {
        runtime = 120;
        dir = /mnt_tmpfs_rdma;
        stats = /tmp;
        filesystem = nfs;
        description = "randomwrite tmpfs";
}

CONFIG randomwrite512k {
        function = generic;
        personality = randomwrite;
        filesize = 160m;
        iosize = 512k;
        nthreads = 8;
        directio = 1;
}

I vary the iosize between 4K and 1024K, so this is just a sample.  As I said, I 
get the same numbers no matter what nthreads is set to.  Weird.  What am I 
missing?

Client and server are both running snv_115.
Thanks,
John.
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