Please be gentle with me here guys as I’m not sure if I have a problem or it’s just my understanding. This is also the first time I’ve posted to a technical forum.
I’ve just moved into a new house that I had wired with Cat 5e and am going through setting up my NAS and various other aspects of my home media systems. My original issue is that I was noticing slow write speeds from my iMac to my NAS but as my testing has progressed I’ve removed the NAS from the equation and now appear to be getting significant differences in write speeds between my windows laptop and my iMac.
Can anyone clarify if this is to be expected and if so why
or
if it’s not expected, what can I do about it?
Windows desktop folder mapped on iMac using Finder>Go>Connect to server using the following settings:
smb://<wincompname>/users/James/Desktop
iMac desktop folder mapped on Win Laptop using Explorer>Map Network Drive using
Drive: m:
Folder:\\<imaccompname>\<userfolder>\Desktop
Using LAN Speed Test (Lite) on both machines to test speed with file size 500 Megabytes.
Running on Windows machine:
Writing: 675Mbps Reading: 926 Mbps
Running the same test on the iMac:
Writing: 72 Mpbs Reading: 798 Mbps
I don’t understand why the iMac only writes at 72 Mbps and the Windows machine appears to write at 675 Mbps.
I’ve just conducted a further test with file size 1000 Megabytes.
The iMac is consistent Writing: 73 Mbps, Reading: 798 Mbps
however the Windows machine gets to around 750 Mb and errors with ‘Error while writing data to test file’. Is this an indicator of what’s happening? Is the Windows machine not actually achieving the rates that LAN Speed Test (Lite) is reporting?
Further config details:
iMac mid-2011
OS X Yosemite v 10.10.4
Ethernet config: Manual, 1000baseT, Full-duplex, Standard (1500) MTU AVB/EAV mode enabled
Windows Lenovo Laptop
Windows 8.1
Realtek PCIe GBE Family Controller
Config: Energy efficient ethernet enabled; Flow Control:Rx & Tx Enabled; Jumbo Frame Disabled; Speed and Duplex: 1.0 Gbps Full Duplex
Both connected via Cat5e cables to patch panel and from there via Cat 5e patch cables to Netgear Prosafe 24 port Gigabit switch, model number JGS524.
The relevant port lights on the switch show as green which indicate that the port is operating in 1000Mbps mode.
I’ve just moved into a new house that I had wired with Cat 5e and am going through setting up my NAS and various other aspects of my home media systems. My original issue is that I was noticing slow write speeds from my iMac to my NAS but as my testing has progressed I’ve removed the NAS from the equation and now appear to be getting significant differences in write speeds between my windows laptop and my iMac.
Can anyone clarify if this is to be expected and if so why
or
if it’s not expected, what can I do about it?
Windows desktop folder mapped on iMac using Finder>Go>Connect to server using the following settings:
smb://<wincompname>/users/James/Desktop
iMac desktop folder mapped on Win Laptop using Explorer>Map Network Drive using
Drive: m:
Folder:\\<imaccompname>\<userfolder>\Desktop
Using LAN Speed Test (Lite) on both machines to test speed with file size 500 Megabytes.
Running on Windows machine:
Writing: 675Mbps Reading: 926 Mbps
Running the same test on the iMac:
Writing: 72 Mpbs Reading: 798 Mbps
I don’t understand why the iMac only writes at 72 Mbps and the Windows machine appears to write at 675 Mbps.
I’ve just conducted a further test with file size 1000 Megabytes.
The iMac is consistent Writing: 73 Mbps, Reading: 798 Mbps
however the Windows machine gets to around 750 Mb and errors with ‘Error while writing data to test file’. Is this an indicator of what’s happening? Is the Windows machine not actually achieving the rates that LAN Speed Test (Lite) is reporting?
Further config details:
iMac mid-2011
OS X Yosemite v 10.10.4
Ethernet config: Manual, 1000baseT, Full-duplex, Standard (1500) MTU AVB/EAV mode enabled
Windows Lenovo Laptop
Windows 8.1
Realtek PCIe GBE Family Controller
Config: Energy efficient ethernet enabled; Flow Control:Rx & Tx Enabled; Jumbo Frame Disabled; Speed and Duplex: 1.0 Gbps Full Duplex
Both connected via Cat5e cables to patch panel and from there via Cat 5e patch cables to Netgear Prosafe 24 port Gigabit switch, model number JGS524.
The relevant port lights on the switch show as green which indicate that the port is operating in 1000Mbps mode.