Messages in this thread | | | Date | Sun, 7 Aug 2005 12:51:22 +1000 | From | Greg Banks <> | Subject | Re: Kernel 2.6.xx - NFSv3 vs. Samba Data Transfer Semantics |
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On Sat, Aug 06, 2005 at 10:34:55AM -0400, Justin Piszcz wrote: > UDP/NFSv3:
Don't use UDP. It won't help you with this problem, but use TCP.
> UDP/Samba, Win2K->Linux box: ^^^ That would be a surprise.
> When NFS transfers are taking > place, watching gkrellm, I see 64MB/s for a few seconds then it goes to 0 > as the disk (hda) continues to write for 3-4 seconds, this continues on > and off.
It's instructive to watch the server's disk traffic on a graph with the same timescale as the network traffic.
> I am using XFS filesystems on both Linux machines. The drives are 7200RPM > Seagate HDDs with either 2MB or 8MB of cache.
With a single drive, your transfer rate is going to be disk limited to probably 40-50 MB/s anyway.
> Are there any 'tweaks' or 'hacks' to make NFS behave more like Samba or
The 'async' export option. RTFM before you use it.
Greg. -- Greg Banks, R&D Software Engineer, SGI Australian Software Group. I don't speak for SGI. - 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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