said by djrobx 
: quote:
Okay, you're up to 800Mb/s. Let's see you do 10Gb/s with a Windows machine.
I know this is really OT on such an active thread, but I do think
Windows does seem to generally have trouble utilizing a gigabit network. I spent many hours trying to tweak and tune the performance of my server. Sometimes I can get them to transfer data at around 40gb/s, and even around 70-80gb/s "bursts" from cache, but the performance is not consistent and nowhere near the performance of the local disks. I think I've tried every single performance tuning article and adjusting every network setting there is. And these are with Intel server adapters!
Local:
DISKSPEED (C) Alexander Grigoriev, alegr@aha.ru
Test File: "R:\$$test$$.tst"
Test File Size: 512 MB
Testing Uncached New File Write Speed....
Data Transfer: 40.21 MB/s, CPU Load: 2.4%
Testing Uncached Write Speed....
Data Transfer: 56.12 MB/s, CPU Load: 2.9%
Testing Uncached Read Speed....
Data Transfer: 29.34 MB/s, CPU Load: -0.2%
Testing Cached Write Speed....
Data Transfer: 30.18 MB/s, CPU Load: 4.1%
Testing Cached Read Speed....
Data Transfer: 50.97 MB/s, CPU Load: 6.2%
Networked:
DISKSPEED (C) Alexander Grigoriev, alegr@aha.ru
Test File: "R:\$$test$$.tst"
Test File Size: 512 MB
Testing Uncached New File Write Speed....
Data Transfer: 13.16 MB/s, CPU Load: 1.2%
Testing Uncached Write Speed....
Data Transfer: 6.53 MB/s, CPU Load: 0.9%
Testing Uncached Read Speed....
Data Transfer: 6.49 MB/s, CPU Load: 1.1%
Testing Cached Write Speed....
Data Transfer: 27.61 MB/s, CPU Load: 1.2%
Testing Cached Read Speed....
Data Transfer: 10.16 MB/s, CPU Load: 1.7%
With GigE I should have plenty of bandwidth to get close to my local disk speed. But the results are awful. It's just fast enough to tell me that I'm not stuck at 10/100. If I reboot the server the numbers may jump up a bit for a while.
Those disk throughput numbers are terrible, I'm not surprised you have throughput trouble. My RAID arrays sustain over 160MB/sec and burst to 550MB/sec or so.
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