Performance is terrible with Mac

[Spiffy]

Network performance is terrible when running Mac. With the same network, and even the same cables I get transfer speeds of about 55-60MB/sec both to and from the NAS on a Windows PC. I think this is pretty good speeds on a wired gigabit network. (CAT6a cables and a HP Procurve switch)

But with a Mac, I can't achieve speeds greater than 25MB/sec from, and 4MB/sec to the NAS - and here is the odd thing, it doesn't matter what protocol I use. SMB/CIFS, AFP, NFS and FTP all do the same. At first I thought it was the disk speed in the Mac, but running from a RAM-disk gives the same results.

If this is a problem on my Mac - I would love to know what it is, so I can find a solution. But I didn't have this problem with FreeNAS 0.6x, so I really think it's something in FreeNAS.

[Spiffy]

I meant 0.7.x, not 0.6.x of course!

[Spiffy]

Adding "socket options = SO_RCVBUF=49152" to the smb auxiliary parameters, solves problem with smb. Modifying send and receive buffers solves the problem.