Struggling With Low Speeds < 15MBps Over Gigabit

StephenB wrote:
I'd like to see the before, "after read", and "after both".

Well it took a bit of time and I mixed myself up a bit, but this is what I came up with:

To give everything a clean start, I have rebooted the ReadyNAS each time I carried out a test.
I only managed to do the tests with the Broadcom NIC enabled and Intel NIC disabled.

3.05GB MKV Test File

ReadyNAS
Auto Negotiation
Jumbo Frames: OFF
MTU: 1500

Broadcom NIC
Auto Negotiation
Jumbo Frames: OFF
Read Speed 116 MB/sec
Write Speed: 28.0 MB/sec

ReadyNAS
Auto Negotiation
Jumbo Frames: ON
MTU: 1500

Broadcom NIC*
Auto Negotiation
Jumbo Frames: ON
Read Speed 11.1 MB/sec
Write Speed: 10.0 MB/sec

The errors were as follows:

READ ERRORS - Jumbo Frames OFF (NAS > PC)


READ ERRORS - Jumbo Frames ON (NAS > PC)*


I wasn't too sure which ones you actually wanted, so I also tested for the write errors too:

WRITE ERRORS - Jumbo Frames OFF (PC > NAS)


WRITE ERRORS - Jumbo Frames ON (PC > NAS)*


*Apparently the Broadcom NIC doesn't support Jumbo Frames, but figured I'd do the tests anyway for a direct comparison.

Not sure if these make anything any clearer.