[Bug 8512] rsync is slower than cp -- Reduce overhead to cp for transfer of large files

https://bugzilla.samba.org/show_bug.cgi?id=8512 --- Comment #5 from Peter van Hooft ho...@natlab.research.philips.com 2014-09-09 07:49:13 UTC --- We use rsync to copy data from one file server to another using NFS3 mounts over a 10Gb link. We found that upping the buffer sizes (as a quick test)

Re: [Bug 8512] rsync is slower than cp -- Reduce overhead to cp for transfer of large files

Why not enable Jumbo Frames? http://stromberg.dnsalias.org/~strombrg/jumbo.html For NFS, you can use http://stromberg.dnsalias.org/~strombrg/nfs-test.html to get some fast settings. The script could be modified to do CIFS I suppose. HTH -- Please use reply-all for most replies to avoid

[Bug 8512] rsync is slower than cp -- Reduce overhead to cp for transfer of large files

https://bugzilla.samba.org/show_bug.cgi?id=8512 --- Comment #4 from John Wiegley jo...@newartisans.com 2013-11-17 09:02:51 UTC --- Let me add my voice to the mix here. I'm copying a 1GB VOB file from an Ubuntu ZFS server running Samba 4.1.1, to my Mac OS X 10.9 box. iperf reports 112 MB/s

Re: [Bug 8512] rsync is slower than cp -- Reduce overhead to cp for transfer of large files

On 2013-11-17 4:02 AM, samba-b...@samba.org samba-b...@samba.org wrote: I'm using gigabit ethernet, obviously, with mtu set to 1500 and no TCP options other than the following in smb.conf: socket options = TCP_NODELAY SO_RCVBUF=131072 SO_SNDBUF=131072 First, remove these... These