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Forum Discussion
NFS Tunning? - some benchmarks
I ran some benchmarks to compare various modes of file sharing, and got some surprising results. My intution was that NFS would be the best option, but its performance was off (see below). So do...
Right Bike Helmet, well I guess the main thing I was wondering if someone has some insight about is tuning NFS.
The local drive did ok performance on 4K blocks sequentially. As you said, it was the random access that caused it to break down due to all the seeking. But NFS fell apart sequentially too.
iSCSI, did pretty well, but specifically uncached 4k, was kind of poor, which makes sense by what you just said. But it did better then local for random access, which I can't explain unless the NAS cashing is superior to the cacheing on my local drive. It could also be that the benchmarking software is able to force the local drive into true random access and not able to do so as well for mounted file server volumes, not sure.
iSCSI would be great, but its of little use for most real world situations to me. iSCSI would work great for a thin client workstation.
NFS I think would be fastest, if the random access of 4k sequential access could be improved some how.
The local drive did ok performance on 4K blocks sequentially. As you said, it was the random access that caused it to break down due to all the seeking. But NFS fell apart sequentially too.
iSCSI, did pretty well, but specifically uncached 4k, was kind of poor, which makes sense by what you just said. But it did better then local for random access, which I can't explain unless the NAS cashing is superior to the cacheing on my local drive. It could also be that the benchmarking software is able to force the local drive into true random access and not able to do so as well for mounted file server volumes, not sure.
iSCSI would be great, but its of little use for most real world situations to me. iSCSI would work great for a thin client workstation.
NFS I think would be fastest, if the random access of 4k sequential access could be improved some how.
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