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Tyan Tiger i7500 S2722GNN Dual Xeon Motherboard

Tyan Tiger i7500 S2722GNN Dual Xeon Motherboard - PCSTATS
Abstract: The Tyan Tiger S2722 is based on the Intel server E7500 chipset and supports up to two Socket 603 Xeon processors.
 86% Rating:   
Filed under: Motherboards Published:  Author: 
External Mfg. Website: Tyan Apr 22 2003   Colin Sun  
Home > Reviews > Motherboards > Tyan S2722GNN

CPU Utilizations and Test Systems

Even when we put a regular processor under 100% load, we're never fully utilizing 100% of the execution units. With a HyperThreading enabled processor those spare execution units can used towards computing other things now.

As you saw from the previous slides from last years Intel Developer Forum, the single Superscalar processor is busy computing information however about half the processor remains unused.

In the Multiprocessing portion of the demonstration we see a dual CPU system working on two separate threads, however again about 50% of both CPU's remain unutilized. In the lone HyperThreading enabled processor, both threads are simultaneously being computed and the CPU usage efficiency has gone up from around 50% to over 90%!

The last example illustrated that dual HyperThreading enabled processors can naturally work on four independent threads at the same time. Again CPU efficiency is around 90%.

While this sounds all very well and good, it's also about the most ideal situation ever so let's get back to the real world. In those examples there is a of overlapping when computing threads.

For the execution units that have been "overlapped", twice as much work is required now, so the end result is not necessarily any faster than a regular superscalar processor that worked on the same information separately. If you were to run two pieces of software that are completely different, and use different execution units, your system performance should get a noticeable boost!

The operating system will also play a key role in how well HyperThreading works. The OS assigns operations to the independent logical processors, and so if it's determined that one of the logical CPU's is to remain idle, the OS will issue a HALT command to the free logical processor thus devoting all of the other system resources to the working logical processor.

Please understand this is an extremely simplified explanation on how HyperThreading works. For more detailed information, you can read through these sections from from Intel's website: HyperThreading and Xeon processors , eBusiness Xeon and desktop HyperThreading .

PCStats Test System Specs

Computer Hardware:

Server Test System Client System #3 Client System #2
Processor: Dual Xeon 2.0 GHz Pentium 3 800EB Pentium 4 2.8
Clock Speed:

20 x 100 MHz = 2.0 GHz

6 x 133 MHz = 800 MHz

21 x 133 MHz = 2.8 GHz

Motherboards:

Tyan S2722

Asus CUV4X-E MSI 648 MAX
Chipset: E7500 VIA 694X SiS648
Videocard:

ATi Rage XL

nVIDIA GeForce DDR

MSI G4Ti4600-TD

Memory:

2x 512MB Registered Samsung PC2100

512MB Apacer PC133

256MB Corsair XMS3500

Hard Drive: 2x 40GB Maxtor D740X 40GB Maxtor DiamondMAX+ 20GB Maxtor DiamondMAX+
CDROM: Notebook CD-ROM LG 40x CD-ROM NEC 52x CD-ROM
Floppy:

Panasonic 1.44MB Floppy Drive

Panasonic 1.44MB Floppy Drive

Panasonic 1.44MB Floppy Drive

Heatsink: Appro Custom Heatsinks Retail Intel HSF AVC Sunflower
PowerSupply: Appro 350W Custom PSU Sparkle 300W Vantec 470W Stealth PSU
Benchmarks:

WebMark 2001
NetBench 7.0
WebBench 7.0
SiSoft Sandra

Software Setup: Windows 2000 Server + SP2
Intel INF 4.04.1012
Windows 2000 Default Driver
Windows 2000 Pro + SP3
VIA 4in1 4.39V
Detonator 40.72
Windows 2000 Pro + SP2
Intel INF 4.04.1012
Detonator 40.72

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Contents of Article: Tyan S2722GNN
 Pg 1.  Tyan Tiger i7500 S2722GNN Dual Xeon Motherboard
 Pg 2.  ATX Features in a Sever Board
 Pg 3.  Monitoring Software and HT Support
 Pg 4.  — CPU Utilizations and Test Systems
 Pg 5.  Benchmarks: Webmark 2001
 Pg 6.  Benchmarks: NetBench
 Pg 7.  Benchmarks: WebBench static_mt_wb401
 Pg 8.  Benchmarks: WebBench static_wb401
 Pg 9.  Benchmarks: Sysmark 2002
 Pg 10.  Conclusions on the Tyan Tiger S2722

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