在内存缓存测试环节,我们选择了科学计算中的Membench项目:
|
ScienceMark Membench |
||
| 厂商 | 泰安 | 双路 X5365平台 |
| 产品型号 | GT24 | 双路 X5365平台 |
| 内存技术参数 | 1GB FBD ECC DDR2 533 SDRAM x 16 |
1GB FBD ECC DDR2 667 SDRAM x 8 |
| L1带宽 | 40672.68 | 83902.59 |
| L2带宽 | 12685.12 | 25120.09 |
| 内存带宽(MB/s) | 5968.96 | 3933.06 |
| L1 Cache Latency(ns) | ||
| 32 Bytes Stride | 1.37 | 1 |
| L2 Cache Latency(ns) | ||
| 4 Bytes Stride | 1.37 | 1 |
| 16 Bytes Stride | 1.37 | 1.34 |
| 64 Bytes Stride | 4.1 | 3.68 |
| 256 Bytes Stride | 6.84 | 3.68 |
| 512 Bytes Stride | 6.84 | 4.01 |
| Memory Latency(ns) | ||
| 4 Bytes Stride | 1.82 | 1 |
| 16 Bytes Stride | 7.29 | 4.68 |
| 64 Bytes Stride | 28.25 | 18.81 |
| 256 Bytes Stride | 92.5 | 60.82 |
| 512 Bytes Stride | 92.05 | 67.84 |
| Algorithm Bandwidth(MB/s) | ||
| Compiler | 2153.31 | 2824.44 |
| REP MOVSD | 2161.95 | 2841.6 |
| ALU Reg Copy | 1831.62 | 2747.44 |
| MMX Reg Copy | 2209.69 | 2794.63 |
| MMX Reg 3dNow | 5789.92 | --- |
| MMX Reg SSE | 5827.16 | 3933.06 |
| SSE PAlign | 4903.71 | 3875.5 |
| SSE PAlign SSE | 5968.96 | 3922.27 |
| SSE2 PAlign | 4897.66 | 3860.31 |
| SSE2 PAlign SSE | 5952.84 | 3920.55 |
| MMX Block 4kb | 3932.15 | 3250.86 |
| MMX Block 16kb | 4161.14 | 3528.15 |
| SSE Block 4kb | 3971.32 | 3183.58 |
| SSE Block 16kb | 4147.83 | 3539.32 |
和Xeon对比,泰安GT24和曙光620R的情形相似,虽然Opteron的主频比较低(2.2GHz,X5365为3GHz),L1/L2的带宽不及X5365,不过由于Opteron内置了内存控制器,因此内存带宽要高出X5365 + 5000P,泰安GT24的内存成绩也比曙光要好些。