Mac Pro Late 2008 1GB LAN Problem Yosemite

Question

Level 1

5 points

Mac Pro Late 2008 1GB LAN Problem Yosemite

In work i have 20 Mac Pro Late 2008 and 5 Mac Pro Early 2013 all connected to server with 1GB LAN speed so all work on 1GB speed
All Mac Pro users connect to server folder for work

I found one **** of annoying problem

i did speed test using "LAN Speed Test" for writing and reading purpose on same folder they use in the server since users with Mac yosemite complains of slowness while they work

In the machines running OS X 10.8.5 i run LAN Speed Test and it gives writing 1GB and reading 1GB

In the machines running OS X 10.10.2 i run LAN Speed Test and it gives writing 100MB and reading 1GB

I was confused so i test on all machines with mac yosemite and they show all the same results

so i took my MacBook Pro Mid 2009 running OS X 10.10.2 and plugin the LAN cable from machines running OS X 10.8.5 (since they show 1GB for R/W) and run the test again ..... i was shocked that it gives me the same results 100MB writing and 1GB reading

Formatted my MacBook Pro to OS X 10.9.5 and it gave me same problem, then formatted to 10.8.5 and it gave me 1GB R/W
Now im 1000% sure its OS X 10.10 & 10.9 problem

Is there any solution regards this problem since i googled without results?

Posted on Mar 5, 2015 8:51 AM

Reply

Answer 1

Mar 5, 2015 1:50 PM in response to hamood_d10

First, you need to determine whether you are getting the requested Gigabit speeds. Use Network Utility to check for actual speeds.

Reply

Answer 2

hamood_d10 Author

Level 1

5 points

Mar 6, 2015 1:56 AM in response to Grant Bennet-Alder

Yes i get 1000 means 1GB but it only happens on writing

Reply

Answer 3

Mar 6, 2015 6:20 AM in response to hamood_d10

There are several different physical problems that can cause your link speed to drop from 1000 Megabits/sec to 100 Megabits/sec. One in particular is a broken or missing wire in a cable. Gigabit speeds require that all eight wire be present in all cables, and that they be wired correctly. Otherwise the speed drops down automatically.

Please provide assurance that you have inspected the actual speeds on each link, and have found them to be 1000 Megabytes/sec. Further debugging is impossible until you have verified this.

Reply

Answer 4

hamood_d10 Author

Level 1

5 points

Mar 6, 2015 6:48 AM in response to Grant Bennet-Alder

Yes i verfied this its 1000% sure its OS X 10.10 & 10.9 faulty

In home i have ASUS AC87U router with 1GB speed

My Windows PC Intel Extreme Motherboard, Core i7 3rd gen, 32GB RAM, GTX 980, Samsung Evo 850 with gigabite ethernet

i formated my MacBook Pro Mid 2009 to 4 partition to OS X 10.10 , 10.9 , 10.8 , 10.7 and used my PC for testing

I connect my mac to 2 different cables cat 6 tested 100% no cable faulty

Tested it on all os x and gave me same results OS X 10.10 , 10.9 write speed 100MB/s , 10.8 , 10.7 gave me Read and write 700 mb/s means ok

USed 2 different apps to make sure "Helios LAN Test" "LAN Speed test" both with same results

I uploaded test on os x

Reply

Answer 5

Mar 6, 2015 7:32 AM in response to hamood_d10

Great. The next step to verify that Errors on the Ethernet Link are not the cause of your problems. In Network Utility, inspect the error counters to be sure you have no more than a few errors. The display below is starting to become alarming, except that this link has been running a few days to get seven errors:

.

Reply

Answer 6

hamood_d10 Author

Level 1

5 points

Mar 6, 2015 1:20 PM in response to Grant Bennet-Alder

In network utility on all OS X

- Link Speed : 1GB

- Send Errors: 0

- Recv: Errors 0

I did manual test on all os x i copied 800MB to the same directory and cable and used stopwatch for 3 times

OS X 10.10 toke to copy 800MB of Speed = 19sec

OS X 10.9 toke to copy 800MB of Speed = 19sec

OS X 10.8 toke to copy 800MB of Speed = 19sec

this is strange they gave same results but copying files manual but using the test apps not same

Are "LAN Speed test" & "HeliosLANTest" not accurate or what?

Because mostly we use InDesign CS6 and open files directly from windows server and work on it, im confused!!!!

Reply

Answer 7

Mar 6, 2015 2:37 PM in response to hamood_d10

And have you selected Jumbo frames and Full Duplex with Flow control is each case:

.

Reply

Answer 8

hamood_d10 Author

Level 1

5 points

Mar 6, 2015 3:16 PM in response to Grant Bennet-Alder

Yes i tried that on both 10.10 & 10.9 same results

Also i read a lot of articles and forums that people suffer the same problem since the upgrade of mavericks, its related to samba "smb"

many solutions out tgere tried every single one of them (edit registery in windows, reduce ack from 3 => 0, using smbv1 ... etc), and for the past 3 hours no solution it still gives writing less than 100MB/s

In Mountain Lion is fast no issue

Reply

Answer 9

hamood_d10 Author

Level 1

5 points

Mar 8, 2015 5:36 AM in response to hamood_d10

thats really ***** that I buy a 8000$ mac pro with high end and having these problems

i hope apple fix this issue or maybe i should use an all windows machines

Reply

Answer 10

Mar 9, 2015 5:38 PM in response to hamood_d10

A couple of other thoughts on this:

1. Check the status and statistics on the switch to which you are connected. It is possible that a full duplex/half duplex situation could be the result. So you always want to check for collisions and errored packets on both sides.

2. Make sure you verify exactly what numbers you are looking at, is it MB/s or Mb/s. These are two very different numbers by a factor of 8. So if you are getting 100MB/s, this is equivalent to 800Mb/s and would be nearing the theoretical maximum for a 1G link, 125MB/s is the theoretical maximum. Perhaps changes within the OS could result in a difference in display.

Reply

Answer 11

hamood_d10 Author

Level 1

5 points

Mar 15, 2015 8:46 AM in response to dandanfireman

I know the difference of MB/s and Mb/s heres the test for you

http://s30.postimg.org/qkfwdvnjl/Screen_Shot_2015_03_15_at_7_38_23_PM.png

http://s30.postimg.org/v522st78x/Screen_Shot_2015_03_15_at_7_39_53_PM.png

http://s30.postimg.org/yrchj7301/Screen_Shot_2015_03_15_at_7_40_52_PM.png

Reply

Answer 12

Mar 15, 2015 10:44 AM in response to hamood_d10

That is very interesting.

But the Trash folder is very special, and in Mac OS X it is actually an illusion created for your convenience. You may be getting some side effects of System overhead. You should run your test using a "real" folder for most accurate results.

Reply

Answer 13

hamood_d10 Author

Level 1

5 points

Mar 15, 2015 11:10 AM in response to Grant Bennet-Alder

that trash is only a folder name its not an actual trash lol

its for testing purpose

Reply

Answer 14

Mar 16, 2015 8:16 AM in response to hamood_d10

Do you have IPv6 set to Link-local only?

Having IPv6 active can punish performance. Having it completely OFF (except on older systems that do not have a Link-local setting) can stop Bonjour from working correctly.

Reply

Answer 15

hamood_d10 Author

Level 1

5 points

Mar 16, 2015 8:27 AM in response to Grant Bennet-Alder

It was automatic, i changed it to local link only and off and tested on both

same results same speed

Reply