OS X Mountain Lion 10.8.5 Over Doubles 802.11ac File Transfer Speeds [Chart]

Posted September 13, 2013 at 2:00am by iClarified | Please help us and submit a translation by clicking here | 15302 views

Apple's just released OS X Mountain Lion 10.8.5 update over doubles 802.11ac file transfer speeds when using AFP, reports ArsTechnica.

Back in June, it was discovered that OS X didn't scale the TCP window size beyond 64KB when copying files over an AFP share. This artificially limited the speed that users could transfer at. Now that dynamic scaling is in place we see some major improvements.

That's more like it! When transferring files over the AFP protocol, it looks like OS X now performs more-or-less identically to Windows 8. Performance is well over double where it was in 10.8.4, which bodes well not just for the 2013 MacBook Air but for any other 802.11ac Macs that come out in the future. Transfer speeds over SMB haven't changed, unfortunately, but we wouldn't read too much into that—Apple is due to replace the Mountain Lion SMB implementation with a new SMB2-based protocol in Mavericks. While we haven't been able to test the latest OS X 10.9 developer betas, we're confident that Apple will have ironed out any issues by release, since the company is clearly aware of the problem.

Notably, both devices will need to be updated to achieve the improved file transfer speeds.

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mrstudz - September 14, 2013 at 2:00am
lol so funny microsoft can run apple hardware faster than apple. It the same for N class hardware too, microsoft will run a MBA with literally double the transfer speed. Ive switched to apple ecosystem slowly over the last few years and its noticeable right away, Apple core networking just isnt as "sharp". by sharp i mean Slower, random disconnects, and sometimes network connectivity will just shut down completely until you reboot. Definitely not magical.
Pigstacho - September 13, 2013 at 1:47pm
Where are all the usual iSheeps that are always saying that Apple is the best in everything?
Bigdik - September 13, 2013 at 5:51am
Why is ac not in the new iPhone. Freaking Apple holding back as usual
Great. - September 13, 2013 at 3:47am
Oh yes!
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