前两天取消了XEN-HVM的那款YardVPS，又买了一个月付的XEN-PV的VPS。虽然个人觉得无论是ping值还是I/O都不错，但是鉴于网上恶评如潮，对于未来是否长期持有还是有点动摇。于是，为了有一个客观的判断，我运行了一次UnixBench测试，结果居然惨不忍睹：

Benchmark Run: Fri Oct 19 2012 21:30:33 - 21:58:29
1 CPU in system; running 1 parallel copy of tests

Dhrystone 2 using register variables        9800785.4 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                     2117.3 MWIPS (10.2 s, 7 samples)
Execl Throughput                               1857.6 lps   (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks        358208.9 KBps  (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks          100224.3 KBps  (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks        947718.1 KBps  (30.0 s, 2 samples)
Pipe Throughput                              588652.2 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                  85276.4 lps   (10.0 s, 7 samples)
Process Creation                               3431.5 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                   3021.4 lpm   (60.0 s, 2 samples)
Shell Scripts (8 concurrent)                    416.0 lpm   (60.1 s, 2 samples)
System Call Overhead                         515420.2 lps   (10.0 s, 7 samples)

System Benchmarks Index Values               BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0    9800785.4    839.8
Double-Precision Whetstone                       55.0       2117.3    385.0
Execl Throughput                                 43.0       1857.6    432.0
File Copy 1024 bufsize 2000 maxblocks          3960.0     358208.9    904.6
File Copy 256 bufsize 500 maxblocks            1655.0     100224.3    605.6
File Copy 4096 bufsize 8000 maxblocks          5800.0     947718.1   1634.0
Pipe Throughput                               12440.0     588652.2    473.2
Pipe-based Context Switching                   4000.0      85276.4    213.2
Process Creation                                126.0       3431.5    272.3
Shell Scripts (1 concurrent)                     42.4       3021.4    712.6
Shell Scripts (8 concurrent)                      6.0        416.0    693.3
System Call Overhead                          15000.0     515420.2    343.6
                                                                   ========
System Benchmarks Index Score                                         537.6

相比Kiloserve和Hostigation的1000+的高分，这个分数实在是看不下去。而且YardVPS不适合做SSH Tunnel和PPTP，速度很慢。
Fairwell, YardVPS.