曙光I840四路六核Dunnington服务器评测-服务器专区

曙光I840四路六核Dunnington服务器评测

作者：IT168评测中心盘骏刘策编辑：盘骏 2009-05-08 00:30 来源：IT168�

　　我们还额外测试了只装备了两个处理器情况下的曙光I840r-H服务器的性能：

SiSoftware Sandra Pro Business 2009
测试对象	Dawning I840r-H服务器四路Intel Dunnington Xeon X7460 2.66GHz	Dawning I840-H服务器双路Intel Dunnington Xeon X7460 2.66GHz	DELL PE2900 III 双路Intel Harptown Xeon E5430 2.66GHz
Processor Arithmetic Benchmark 处理器架构测试
Dhrystone ALU	292201MIPS	146284MIPS	91006MIPS
Dhrystone ALU vs SPEED	109.85MIPS/MHz	54.99MIPS/MHz	34.21MIPS/MHz
Whetstone iSSE3	208685MFLOPS	104325MFLOPS	78385MFLOPS
Dhrystone iSSE3 vs SPEED	78.45MFLOPS/MHz	39.22MFLOPS/MHz	29.47MFLOPS/MHz
Processor Multi-Media Benchmark 处理器多媒体测试
Multi-Media Int x16 iSSE4.1	753.51MPixel/s	376.72MPixel/s
Multi-Media Int x8 aSSE2
Multi-Media Int x8 iSSE4.1			199.33MPixel/s
Multi-Media Int x16 iSSE4.1 vs SPEED	283.27kPixel/s/MHz	141.62kPixel/s/MHz
Multi-Media Int x8 aSSE2 vs SPEED
Multi-Media Int x8 iSSE4.1 vs SPEED			74.94kPixel/s/MHz
Multi-Media Float x8 iSSE2	501.36MPixel/s	252.26MPixel/s
Multi-Media Float x4 iSSE2			108.69MPixel/s
Multi-Media Float x8 iSSE2 vs SPEED	188.48kPixel/s/MHz	94.83kPixels/s/MHz
Multi-Media Float x4 iSSE2 vs SPEED			40.86kPixels/s/MHz
Multi-Media Double x4 iSSE2	260.18MPixel/s	130.98MPixel/s
Multi-Media Double x2 iSSE2			55.75MPixel/s
Multi-Media Double x4 iSSE2 vs SPEED	97.81kPixel/s/MHz	49.24kPixels/s/MHz
Multi-Media Double x2 iSSE2 vs SPEED			20.96kPixels/s/MHz
Multi-Core Efficiency Benchmark
Inter-Core Bandwidth	12.88GB/s	5.92GB/s	20.54GB/s
Inter-Core Bandwidth vs SPEED	4.96MB/s/MHz	2.28MB/s/MHz	7.91MB/s/MHz
Inter-Core Latency (越小越好)	110ns	113ns	90ns
Inter-Core Latency vs SPEED (越小越好)	0.04ns/MHz	0.04ns/MHz	0.03ns/MHz
.NET Arithmetic Benchmark .NET架构测试
Dhrystone .NET	75397MIPS	13460MIPS	10562MIPS
Dhrystone .NET vs SPEED	28.34MIPS/MHz	5.06MIPS/MHz	3.97MIPS/MHz
Whetstone .NET	136088MFLOPS	69152MFLOPS	45399MFLOPS
Whetstone .NET vs SPEED	51.16MFLOPS/MHz	26.00MFLOPS/MHz	17.07MFLOPS/MHz
.NET Multi-Media Benchmark .NET多媒体测试
Multi-Media Int x1 .NET	119.30MPixel/s	60.45MPixel/s	31.28MPixel/s
Multi-Media Int x1 .NET vs SPEED	44.85kPixels/s/MHz	22.72kPixels/s/MHz	11.76kPixels/s/MHz
Multi-Media Float x1 .NET	31.74MPixel/s	16.25MPixel/s	8.68MPixel/s
Multi-Media Float x1 .NET vs SPEED	11.93kPixels/s/MHz	6.11kPixels/s/MHz	3.26kPixels/s/MHz
Multi-Media Double x1 .NET	58.72MPixel/s	29.98MPixel/s	24.75MPixel/s
Multi-Media Double x1 .NET vs SPEED	22.07kPixels/s/MHz	11.27kPixels/s/MHz	9.30kPixels/s/MHz

　　性能下降比较明显，不过仍然比同频率的Harpertown高，一些项目高出一倍，除了核心数量上的差异，Dunnington的Uncore/L3缓存也发挥了作用。

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