Unixbench：评测分析
测试
测试开始后，软件会自动进行各项测试，并为其评分，测试完成后，将会输出一个测试报表结果，以我的 Dell R410，配置为 E5507 16G内存，146G SAS Raid 0为例，结果如下：
======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: WosDevServer: GNU/Linux OS: GNU/Linux -- 4.4.0-119-generic -- #143-Ubuntu SMP Mon Apr 2 16:08:24 UTC 2018 Machine: x86_64 (x86_64) Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8") CPU 0: Intel(R) Xeon(R) CPU E5507 @ 2.27GHz (4522.0 bogomips) Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization CPU 1: Intel(R) Xeon(R) CPU E5507 @ 2.27GHz (4521.8 bogomips) Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization CPU 2: Intel(R) Xeon(R) CPU E5507 @ 2.27GHz (4522.0 bogomips) Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization CPU 3: Intel(R) Xeon(R) CPU E5507 @ 2.27GHz (4521.8 bogomips) Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization CPU 4: Intel(R) Xeon(R) CPU E5507 @ 2.27GHz (4522.0 bogomips) Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization CPU 5: Intel(R) Xeon(R) CPU E5507 @ 2.27GHz (4521.8 bogomips) Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization CPU 6: Intel(R) Xeon(R) CPU E5507 @ 2.27GHz (4522.0 bogomips) Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization CPU 7: Intel(R) Xeon(R) CPU E5507 @ 2.27GHz (4521.8 bogomips) Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization 09:42:18 up 16:37, 1 user, load average: 0.58, 0.14, 0.05; runlevel 5 ------------------------------------------------------------------------ Benchmark Run: Wed Apr 18 2018 09:42:18 - 10:10:35 8 CPUs in system; running 1 parallel copy of tests Dhrystone 2 using register variables 22890258.0 lps (10.0 s, 7 samples) Double-Precision Whetstone 2974.5 MWIPS (9.9 s, 7 samples) Execl Throughput 2009.3 lps (30.0 s, 2 samples) File Copy 1024 bufsize 2000 maxblocks 356519.6 KBps (30.0 s, 2 samples) File Copy 256 bufsize 500 maxblocks 99637.7 KBps (30.0 s, 2 samples) File Copy 4096 bufsize 8000 maxblocks 962479.7 KBps (30.0 s, 2 samples) Pipe Throughput 511868.4 lps (10.0 s, 7 samples) Pipe-based Context Switching 123716.9 lps (10.0 s, 7 samples) Process Creation 3374.2 lps (30.0 s, 2 samples) Shell Scripts (1 concurrent) 6240.7 lpm (60.0 s, 2 samples) Shell Scripts (8 concurrent) 3324.5 lpm (60.0 s, 2 samples) System Call Overhead 509821.0 lps (10.0 s, 7 samples) System Benchmarks Index Values BASELINE RESULT INDEX Dhrystone 2 using register variables 116700.0 22890258.0 1961.5 Double-Precision Whetstone 55.0 2974.5 540.8 Execl Throughput 43.0 2009.3 467.3 File Copy 1024 bufsize 2000 maxblocks 3960.0 356519.6 900.3 File Copy 256 bufsize 500 maxblocks 1655.0 99637.7 602.0 File Copy 4096 bufsize 8000 maxblocks 5800.0 962479.7 1659.4 Pipe Throughput 12440.0 511868.4 411.5 Pipe-based Context Switching 4000.0 123716.9 309.3 Process Creation 126.0 3374.2 267.8 Shell Scripts (1 concurrent) 42.4 6240.7 1471.9 Shell Scripts (8 concurrent) 6.0 3324.5 5540.8 System Call Overhead 15000.0 509821.0 339.9 ======== System Benchmarks Index Score 768.0 ------------------------------------------------------------------------ Benchmark Run: Wed Apr 18 2018 10:10:35 - 10:38:54 8 CPUs in system; running 8 parallel copies of tests Dhrystone 2 using register variables 181646934.4 lps (10.0 s, 7 samples) Double-Precision Whetstone 23770.7 MWIPS (9.9 s, 7 samples) Execl Throughput 17323.7 lps (29.9 s, 2 samples) File Copy 1024 bufsize 2000 maxblocks 622988.4 KBps (30.0 s, 2 samples) File Copy 256 bufsize 500 maxblocks 167131.8 KBps (30.0 s, 2 samples) File Copy 4096 bufsize 8000 maxblocks 1762630.6 KBps (30.0 s, 2 samples) Pipe Throughput 4066846.5 lps (10.0 s, 7 samples) Pipe-based Context Switching 1014461.5 lps (10.0 s, 7 samples) Process Creation 43249.7 lps (30.0 s, 2 samples) Shell Scripts (1 concurrent) 40928.1 lpm (60.0 s, 2 samples) Shell Scripts (8 concurrent) 5324.5 lpm (60.0 s, 2 samples) System Call Overhead 3115517.6 lps (10.0 s, 7 samples) System Benchmarks Index Values BASELINE RESULT INDEX Dhrystone 2 using register variables 116700.0 181646934.4 15565.3 Double-Precision Whetstone 55.0 23770.7 4322.0 Execl Throughput 43.0 17323.7 4028.8 File Copy 1024 bufsize 2000 maxblocks 3960.0 622988.4 1573.2 File Copy 256 bufsize 500 maxblocks 1655.0 167131.8 1009.9 File Copy 4096 bufsize 8000 maxblocks 5800.0 1762630.6 3039.0 Pipe Throughput 12440.0 4066846.5 3269.2 Pipe-based Context Switching 4000.0 1014461.5 2536.2 Process Creation 126.0 43249.7 3432.5 Shell Scripts (1 concurrent) 42.4 40928.1 9652.9 Shell Scripts (8 concurrent) 6.0 5324.5 8874.1 System Call Overhead 15000.0 3115517.6 2077.0 ======== System Benchmarks Index Score 3702.0 ======= Script description and score comparison completed! =======
为了进行对比，我同时也在我的开发机上运行了一个虚拟机进行测试，虚拟机设置了单核 CPU，2G 内存，测试结果如下：
======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: ubuntu: GNU/Linux OS: GNU/Linux -- 4.4.0-119-generic -- #143-Ubuntu SMP Mon Apr 2 16:08:24 UTC 2018 Machine: x86_64 (x86_64) Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8") CPU 0: Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz (6411.1 bogomips) x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET 10:45:37 up 2 min, 1 user, load average: 0.22, 0.07, 0.02; runlevel 5 ------------------------------------------------------------------------ Benchmark Run: Wed Apr 18 2018 10:45:37 - 11:13:49 1 CPU in system; running 1 parallel copy of tests Dhrystone 2 using register variables 40453839.7 lps (10.0 s, 7 samples) Double-Precision Whetstone 2933.5 MWIPS (9.9 s, 7 samples) Execl Throughput 5999.9 lps (30.0 s, 2 samples) File Copy 1024 bufsize 2000 maxblocks 818195.6 KBps (30.0 s, 2 samples) File Copy 256 bufsize 500 maxblocks 246488.8 KBps (30.0 s, 2 samples) File Copy 4096 bufsize 8000 maxblocks 1618077.0 KBps (30.0 s, 2 samples) Pipe Throughput 1298128.5 lps (10.0 s, 7 samples) Pipe-based Context Switching 218737.5 lps (10.0 s, 7 samples) Process Creation 15710.1 lps (30.0 s, 2 samples) Shell Scripts (1 concurrent) 10794.3 lpm (60.0 s, 2 samples) Shell Scripts (8 concurrent) 1405.5 lpm (60.0 s, 2 samples) System Call Overhead 1217286.8 lps (10.0 s, 7 samples) System Benchmarks Index Values BASELINE RESULT INDEX Dhrystone 2 using register variables 116700.0 40453839.7 3466.5 Double-Precision Whetstone 55.0 2933.5 533.4 Execl Throughput 43.0 5999.9 1395.3 File Copy 1024 bufsize 2000 maxblocks 3960.0 818195.6 2066.2 File Copy 256 bufsize 500 maxblocks 1655.0 246488.8 1489.4 File Copy 4096 bufsize 8000 maxblocks 5800.0 1618077.0 2789.8 Pipe Throughput 12440.0 1298128.5 1043.5 Pipe-based Context Switching 4000.0 218737.5 546.8 Process Creation 126.0 15710.1 1246.8 Shell Scripts (1 concurrent) 42.4 10794.3 2545.8 Shell Scripts (8 concurrent) 6.0 1405.5 2342.5 System Call Overhead 15000.0 1217286.8 811.5 ======== System Benchmarks Index Score 1435.0 ======= Script description and score comparison completed! =======
由于虚拟机仅配置了单核 CPU，因此这里只有 1 parallel 单线程测试，并没有上面服务器中的多线程测试。我们可以从两份结果对比得出，由于不同世代的 CPU 技术差异，这里的 I5-4570 的单核表现与 XEON-E5507相比几乎是性能翻倍。
评估
以上的测试给出的分数，我们可以作为评估的依据，但实际决策中，还需要考虑其他的情况。如服务器的安放、稳定性以及一起其他的功能，比如 Dell 的服务器支持 iDrac 远程控制，可以通过网络控制服务器开关、重启以及监控设备运行情况等。如果单从运算性能看，可能会组装一台 i5 的电脑性能更好，但如遇停电、或者死机的情况，没有远程控制维护服务器，那么就需要考虑其他的处理方案。
