曙光Nehalem-EP服务器I620r-G深度评测-服务器专区

曙光Nehalem-EP服务器I620r-G深度评测

作者：IT168评测中心盘骏刘策编辑：盘骏 2009-03-31 01:33 来源：IT168�

　　为了体现出超线程对系统性能的影响，我们特地关闭了超线程又作了一遍测试。

SiSoftware Sandra Pro Business 2009
测试对象	Dawning I620r-G Nehalem-EP 双路Intel Gainestown Xeon E5540 2.53GHz	Dawning I620r-G Nehalem-EP 双路Intel Gainestown Xeon E5540 2.53GHz 无超线程
Processor Arithmetic Benchmark 处理器架构测试
Dhrystone ALU	129014MIPS	130767MIPS
Dhrystone ALU vs SPEED	51.05MIPS/MHz	51.75MIPS/MHz
Whetstone iSSE3	111000MFLOPS	68158MFLOPS
Dhrystone iSSE3 vs SPEED	43.93MFLOPS/MHz	26.97MFLOPS/MHz
Processor Multi-Media Benchmark 处理器多媒体测试
Multi-Media Int x16 iSSE4.1	269.08MPixel/s	228.02MPixel/s
Multi-Media Int x16 iSSE4.1 vs SPEED	106.48kPixels/s/MHz	90.23kPixels/s/MHz
Multi-Media Float x8 iSSE2	206.19MPixel/s	172.03MPixel/s
Multi-Media Float x8 iSSE2 vs SPEED	81.60kPixels/s/MHz	68.08kPixels/s/MHz
Multi-Media Double x4 iSSE2	113.93MPixel/s	89.72MPixel/s
Multi-Media Double x4 iSSE2 vs SPEED	45.09kPixels/s/MHz	35.50kPixels/s/MHz
Multi-Core Efficiency Benchmark
Inter-Core Bandwidth	63.30GB/s	25.88GB/s
Inter-Core Bandwidth vs SPEED	25.65MB/s/MHz	10.49MB/s/MHz
Inter-Core Latency (越小越好)	22ns	58ns
Inter-Core Latency? vs SPEED (越小越好)	0.01ns/MHz	0.02ns/MHz
Memory Bandwidth Benchmark 内存带宽测试
Int Buff'd iSSE2 Memory Bandwidth	9.02GB/s	32.59GB/s
Float Buff'd iSSE2 Memory Bandwidth	8.90GB/s	32.56GB/s
Memory Latency Benchmark 内存延迟测试
Memory(Random Access) Latency (越小越好)	96ns	92ns
Speed Factor (越小越好)	59.40	57.90
Internal Data Cache	4clocks	4clocks
L2 On-board Cache	10clocks	10clocks
L3 On-board Cache	52clocks	51clocks
Cache and Memory Benchmark 缓存及内存测试
Cache/Memory Bandwidth	122.06GB/s	120.64GB/s
Cache/Memory Bandwidth vs SPEED	49.46MB/s/MHz	48.89MB/s/MHz
Speed Factor (越小越好)	22.80	23.10
Internal Data Cache	398.74GB/s	401.21GB/s
L2 On-board Cache	368.03GB/s	362.61GB/s
.NET Arithmetic Benchmark .NET架构测试
Dhrystone .NET	29299MIPS	28774MIPS
Dhrystone .NET vs SPEED	11.59MIPS/MHz	11.39MIPS/MHz
Whetstone .NET	69736MFLOPS	44516MFLOPS
Whetstone .NET vs SPEED	27.60MFLOPS/MHz	17.62MFLOPS/MHz
.NET Multi-Media Benchmark .NET多媒体测试
Multi-Media Int x1 .NET	53.25MPixel/s	46.38MPixel/s
Multi-Media Int x1 .NET vs SPEED	21.07kPixels/s/MHz	18.35kPixels/s/MHz
Multi-Media Float x1 .NET	23.09MPixel/s	13.30MPixel/s
Multi-Media Float x1 .NET vs SPEED	9.14kPixels/s/MHz	5.26kPixels/s/MHz
Multi-Media Double x1 .NET	45.02MPixel/s	24.73MPixel/s
Multi-Media Double x1 .NET vs SPEED	17.81kPixels/s/MHz	9.79kPixels/s/MHz

SiSoftware Sandra对比，用蓝色标出了性能特出的项目

　　只有极少数的项目中，关闭超线程获得了更好的测试成绩。Nehalem-EP的超线程比起Pentium 4时代有了不少的改进，你不应该将其关闭。

关注我们