Messages in this thread | | | Date | Sat, 5 Feb 2011 22:06:21 +0000 | From | "Dr. David Alan Gilbert" <> | Subject | Re: Supermicro X8DTH-6: Only ~250MiB/s from RAID<->RAID over 10GbE? |
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* Justin Piszcz (jpiszcz@lucidpixels.com) wrote: > > > On Sat, 5 Feb 2011, Emmanuel Florac wrote: > >> Le Sat, 5 Feb 2011 14:35:52 -0500 (EST) vous écriviez: >> > > To respond to everyone: > >> Did you try launching 4 simultaneous cp operations over nfs to get to >> 1.2 GB/s? >> I've witnessed single stream copy performance with Samba being less than >> maximum due to Samba limitations. Running multiple copy ops in parallel then >> usually saturates the pipe. > > > I tried 4 simultaenous cp's and there was little change, 250-320MiB/s.
So I think you've said network benchmarks are OK, disc benchmarks are OK, but a copy over the network is slow.
What happens if you run a disc benchmark at the same time as a network benchmark; even though the two aren't related? Can you keep the disc busy writing even when the network is being pushed?
Dave -- -----Open up your eyes, open up your mind, open up your code ------- / Dr. David Alan Gilbert | Running GNU/Linux | Happy \ \ gro.gilbert @ treblig.org | | In Hex / \ _________________________|_____ http://www.treblig.org |_______/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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