On Fri, 27 Jul 2012 09:03:15 +0100 Tim Fletcher <tim@night-shade.org.uk> allegedly wrote: > > Even powerful modern x86 boxes are still CPU bound with scp so as > Tixy says adding scp to the mix complicates the testing. > > For example I get roughly USB2 wire-speed (30mb/s ish) from my > iconnect over iscsi, AoE or nfs but much slower if I use scp or rsync > over ssh. -- > OK, OK, I picked a bad test. For comparison, here are the results copying from NFS and CIFS mounts alongside the original scp test figures. scp NFS CIFS slug 1.3 MB/s 3.9 MB/s 4.2 MB/s DNS 320 3.6 MB/s 7.6 MB/s 5.6 MB/s I confess I am puzzled by the difference between the two devices using CIFS. I have repeated the tests and get the same results. It seems odd that CIFS should be faster than NFS on the slug, but so much slower on the DNS. I guess that may be down to implementation (or version) differences. Mick --------------------------------------------------------------------- blog: baldric.net fingerprint: FC23 3338 F664 5E66 876B 72C0 0A1F E60B 5BAD D312 Note that I have recently upgraded my GPG key see: http://baldric.net/2012/07/20/gpg-key-upgrade/ ---------------------------------------------------------------------
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