I have been building, swapping and testing parts and UT configurations for over a month. What I have found is that at faster network speeds unless you have HEAVY DUTY hardware the UT device is a decided performance hit. Old single-core CPUs seem to be a problem but RAM is not factor as long as it is at least 1GB. Network cards also have not been an issue as I have tried multiple Intel and Dlink versions - all new.
I have put together a new configuration using the following:
Winsis ITX case - backwards expansion card connection to the case - a definite oops but not a major problem - I like the rest of the case
Newegg.com - Winsis Wi-01 Black SGCC / ABS Mini-ITX Tower Computer Case - Computer Cases
Intel Atom 330 board - onboard NIC turned off
Newegg.com - Intel BOXD945GCLF2 Atom 330 Intel 945GC Mini ITX Motherboard/CPU Combo - Motherboard / CPU / VGA Combo
Seagate 80Gb notebook hard drive
Newegg.com - Seagate Momentus 7200.2 ST980813AS 80GB 7200 RPM 8MB Cache SATA 3.0Gb/s Notebook Hard Drive - Laptop Hard Drives
Patriot 2Gb RAM
Newegg.com - Patriot 2GB 240-Pin DDR2 SDRAM DDR2 667 (PC2 5300) Desktop Memory - Desktop Memory
Intel Pro dual NIC - purchased used on ebay
Newegg.com - Intel PILA8472C3 10/ 100Mbps PCI PRO/100 S Dual Port Server Adapter 2 x RJ45 - Network Interface Cards
Total including shipping ~ $250
Now for the problem. The box runs fine but UT has problems at the connection speeds that I have available on this cable connection. See the following for a discussion on the impact of the virus blocker.
Following are the result of tests made today one right after the other. They test the sustained download speed for a 122MB exe file from HP. Everything is running behind a Sonicwall TZ-170W and UT is in bridged mode. Same file, same connection, downloaded to the same computer. The number provided is average speed for the download
No UT box on the network -> 10Mbits/sec
UT box w/above config with NO modules loaded -> 7.5Mbits/sec
UT box w/above config with ONLY virus blocker loaded -> 4.5Mbits/sec
As the results show there is a 25% performance hit with NO modules loaded. With ONLY virus blocker there is over a 50% performance penalty. In addition, the file is corrupted when the virus blocker is on.
I like UT and want to support it and sell it. But I also need it to work better than it is currently. I did read that there is a new 6.1 beta out today but I have not tried this.
Before you go blaming the hardware including the used Intel NIC I have experienced the same type of thing with all the other boxes and NICs tested. The only thing that I have seen work well on this connection is a new Dell R200 2.4GHz Xeon dual-core 4GB RAM integrated Broadcom NICs and 80GB hard drive. However, this is overkill for a 1 or 2 person network.
Anybody have any ideas what it will take to get this fixed? I can't imagine what is wrong that causes a 25% performance penalty just to bridge the packets. FWIW, I bet the problem is much less noticeable at lower speeds but I haven't tested that theory yet.