搬瓦工 洛杉矶CN2/KVM/VPS主机/512MB内存 简单评测
搬瓦工在8月推出洛杉矶C3节点的时候简单分享过一次，当时还只有一个套餐方案，现在已经正式运营了，当然以前购买的其他节点的基于KVM架构的VPS主机可以通过管理面板中切换到新的机房，不过那些已经指明了不可以更换机房的方案同样不可以切换。估计是由于成本的增加，切到洛杉矶C3机房，流量要减少为原来的三分之一。今天简单看看搬瓦工洛杉矶CN2节点的表现情况吧，对于想要体验的提供一点点帮助吧，不过仅供参考哦。
简单使用测试方案
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1、系统信息、带宽、I/O测试
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CPU model : QEMU Virtual CPU version (cpu64-rhel6)
Number of cores : 1
CPU frequency : 2599.998 MHz
Total size of Disk : 11.3 GB (0.6 GB Used)
Total amount of Mem : 512 MB (134 MB Used)
Total amount of Swap : 0 MB (0 MB Used)
System uptime : 0 days, 0 hour 4 min
Load average : 0.13, 0.05, 0.02
OS : CentOS 6.8
Arch : i686 (32 Bit)
Kernel : 2.6.32-642.el6.i686
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I/O speed(1st run) : 973 MB/s
I/O speed(2nd run) : 915 MB/s
I/O speed(3rd run) : 944 MB/s
Average I/O speed : 944.0 MB/s
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Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 101MB/s
Linode, Tokyo, JP 106.187.96.148 9.27MB/s
Linode, Singapore, SG 139.162.23.4 6.68MB/s
Linode, London, UK 176.58.107.39 7.94MB/s
Linode, Frankfurt, DE 139.162.130.8 7.58MB/s
Linode, Fremont, CA 50.116.14.9 4.23MB/s
Softlayer, Dallas, TX 173.192.68.18 33.4MB/s
Softlayer, Seattle, WA 67.228.112.250 34.7MB/s
Softlayer, Frankfurt, DE 159.122.69.4 7.03MB/s
Softlayer, Singapore, SG 119.81.28.170 6.13MB/s
Softlayer, HongKong, CN 119.81.130.170 4.19MB/s
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2、国内访问速度
3、硬盘 I/O 性能测试
dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 4.72764 s, 56.8 MB/s4、返程电信路由
5、返程联通路由
6、跑分
Benchmark Run: Sat Aug 26 2017 19:16:11 - 19:50:20
1 CPU in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 29288725.8 lps (10.0 s, 7 samples)
Double-Precision Whetstone 3112.7 MWIPS (10.0 s, 7 samples)
Execl Throughput 4744.4 lps (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 741699.1 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 202023.5 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 1796402.7 KBps (30.0 s, 2 samples)
Pipe Throughput 1380380.3 lps (10.0 s, 7 samples)
Pipe-based Context Switching 260429.4 lps (10.0 s, 7 samples)
Process Creation 12642.8 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 5269.0 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 702.2 lpm (60.0 s, 2 samples)
System Call Overhead 1720480.4 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 29288725.8 2509.7
Double-Precision Whetstone 55.0 3112.7 565.9
Execl Throughput 43.0 4744.4 1103.3
File Copy 1024 bufsize 2000 maxblocks 3960.0 741699.1 1873.0
File Copy 256 bufsize 500 maxblocks 1655.0 202023.5 1220.7
File Copy 4096 bufsize 8000 maxblocks 5800.0 1796402.7 3097.2
Pipe Throughput 12440.0 1380380.3 1109.6
Pipe-based Context Switching 4000.0 260429.4 651.1
Process Creation 126.0 12642.8 1003.4
Shell Scripts (1 concurrent) 42.4 5269.0 1242.7
Shell Scripts (8 concurrent) 6.0 702.2 1170.3
System Call Overhead 15000.0 1720480.4 1147.0
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System Benchmarks Index Score 1241.67、小结
IO性能整体上还是不错的，对于用来搭建一个小站来说绰绰有余了，想要便宜体验的朋友，建议选择其他机房的常规方案，之后再通过后台切换数据中心现在洛杉矶CN2节点即可，就是流量少点而已，具体的KVM常规方案可以参见：搬瓦工KVM便宜货
