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How to optimize Mac file sharing speeds over LAN?

335 Views 1 Reply Latest reply: Feb 20, 2014 7:40 AM by tkoyn RSS
tkoyn Level 1 Level 1 (0 points)
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Feb 19, 2014 11:17 AM

I got a new NetGear R7000, and I find it very fast for LAN transfers wired or wireless between Macs running OS X Mountain Lion or Mavericks. Testing large (multigigabyte) file transfers over AFP, an early 2011 Macbook Pro running Mavericks 10.9.1 connecting to a 2011 Mac Mini running Mountain Lion 10.8.5, Ethernet speeds can hit 6 GB per min (800 Mbps) real world and wireless 2.06 GB / min (273 Mbps), real world performance.

 

If I perform a similar test for Snow Leopard on both ends, an early 2011 Macbook Pro running Snow Leopard 10.6.8 onnecting to a 2010 Mac Mini also running 10.6.8, has Ethernet transfers topping out at about 1.72 Gigabytes per minute for Ethernet (228 Mbps) and 1.07 GB / min (140 Mbps) for Wifi, real world performance.

 

I am wondering if there is anything I can do to speed up the Snow Leopard AFP networking. (There are some applications that run only in Snow Leopard and I would like to have it network efficiently instead of getting rid of it. The Macbook Pro has a partitioned drive so I can boot between Snow Leopard and Mavericks.)

 

I know that Apple made some tweaks in file sharing performance in Mountain Lion 10.8.5, and I suspect TCP IP parameters were altered to speed things up dramatically when there were all the complaints about it being slow on Mac Book Airs with 802.11ac. I am curious what Apple did.

 

I am wondering if anyone has any tips on how I can improve AFP file sharing performance in Snow Leopard. Are there TCP IP parameters, or plist entries, or other hidden settings I can change? Parameters I can tune in sysctl.conf? I am hoping a real network guru can come on here to advise on some advanced techniques I can use to speed up AFP on Snow Leopard. It is the Macs running Snow Leopard that need to be tuned, not the router, as speeds are very fast sharing between Mountain Lion and Mavericks.

 

Also, for any/all Mac OS versions, are there networking parameters that I can tune to speed up transfers that involve a very large number of very small files? Even recent versions of OS X slow down greatly on this.

 

Thanks in advance

Mac OS X (10.6.8)

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