天翼云主机1G版（基础 I 型）评测

测试型号：基础 I 型 vCPU（1个）、内存（1G）、存储（80G）、IP（1个）、独享带宽2M 价格：129元
更多型号参考：http://www.ctyun.cn/product/cloud
1. 系统版本

[root@i-488-27138-VM ~]# cat /etc/issue
CentOS release 6.3 (Final)
Kernel \r on an \m

[root@i-488-27138-VM ~]# uname -a
Linux i-488-27138-VM 2.6.32-279.el6.x86_64 #1 SMP Fri Jun 22 12:19:21 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

中国电信天翼云主机（貌似用的是Vmware）提供一些操作系统（Windows收费）：

Ubuntu 12.04 (64-bit)
CentOS 5.8 (64-bit)
CentOS 6.3 (64-bit)
CentOS 6.4 (32-bit)
Debian 7 (64-bit)

Windows除了基础 I 型，其他型号Windows都要收费，大家还是用Linux吧，哈哈！
2. cpu型号

[root@i-488-27138-VM ~]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 47
model name : Intel(R) Xeon(R) CPU E7- 4830 @ 2.13GHz
stepping : 2
cpu MHz : 2131.022
cache size : 24576 KB
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc up arch_perfmon pebs bts xtopology tsc_reliable nonstop_tsc aperfmperf unfair_spinlock pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes hypervisor lahf_lm ida arat epb dts
bogomips : 4262.04
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:

3. 内存

[root@i-488-27138-VM ~]# free -m
total used free shared buffers cached
Mem: 996 925 71 0 2 831
-/+ buffers/cache: 90 905
Swap: 2015 0 2015

4. 硬盘

[root@i-488-27138-VM ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root
47G 2.1G 43G 5% /
tmpfs 499M 0 499M 0% /dev/shm
/dev/sda1 485M 33M 427M 8% /boot

[root@i-488-27138-VM ~]# fdisk -l

Disk /dev/sda: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000bc40e

Device Boot Start End Blocks Id System
/dev/sda1 * 1 64 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 64 6528 51915776 8e Linux LVM

Disk /dev/sdb: 32.2 GB, 32212254720 bytes
255 heads, 63 sectors/track, 3916 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/mapper/VolGroup-lv_root: 51.0 GB, 51044679680 bytes
255 heads, 63 sectors/track, 6205 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/mapper/VolGroup-lv_swap: 2113 MB, 2113929216 bytes
255 heads, 63 sectors/track, 257 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

5. dd测试下磁盘性能

[root@i-488-27138-VM ~]# dd if=/dev/zero of=test bs=1M count=2048 oflag=dsync
2048+0 records in
2048+0 records out
2147483648 bytes (2.1 GB) copied, 40.0946 s, 53.6 MB/s

6. 网速测试
本地ping（上海移动）

C:\Users\root>ping 101.227.253.14

Pinging 101.227.253.14 with 32 bytes of data:
Reply from 101.227.253.14: bytes=32 time=58ms TTL=47
Reply from 101.227.253.14: bytes=32 time=68ms TTL=47
Reply from 101.227.253.14: bytes=32 time=73ms TTL=47
Reply from 101.227.253.14: bytes=32 time=72ms TTL=47

Ping statistics for 101.227.253.14:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 58ms, Maximum = 73ms, Average = 67ms

ping.chinaz.com

服务器wget速度

[root@i-488-27138-VM ~]# wget http://cachefly.cachefly.net/100mb.test
--2013-08-14 17:55:41-- http://cachefly.cachefly.net/100mb.test
Resolving cachefly.cachefly.net... 204.93.150.151
Connecting to cachefly.cachefly.net|204.93.150.151|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: “100mb.test”

100%[======================================>] 104,857,600 10.1M/s in 11s

2013-08-14 17:55:55 (9.37 MB/s) - “100mb.test” saved [104857600/104857600]

aliyun里面wget

[root@AY1304101837xxxxxdd ~]# wget http://101.227.253.14:8000/100mb.test
--2013-08-15 10:04:33-- http://101.227.253.14:8000/100mb.test
Connecting to 101.227.253.14:8000... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100mb.test'

100%[======================================>] 104,857,600 512K/s in 3m 12s

2013-08-15 10:07:46 (532 KB/s) - `100mb.test' saved [104857600/104857600]

7. 用unixbench测试VPS性能（详细步骤）

取得root权限，然后随便找个目录，比如可以cd ~或者cd /tmp
yum -y install gcc
wget http://byte-unixbench.googlecode.com/files/unixbench-5.1.2.tar.gz
tar -zxvf unixbench-5.1.2.tar.gz
cd unixbench-5.1.2
vi Makefile 找到GRAPHIC_TESTS = defined，在前面加个“#”，然后保存退出
make
./Run

Benchmarks报告如下：

========================================================================
BYTE UNIX Benchmarks (Version 5.1.2)

System: i-488-27138-VM: GNU/Linux
OS: GNU/Linux -- 2.6.32-279.el6.x86_64 -- #1 SMP Fri Jun 22 12:19:21 UTC 2012
Machine: x86_64 (x86_64)
Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
CPU 0: Intel(R) Xeon(R) CPU E7- 4830 @ 2.13GHz (4262.0 bogomips)
x86-64, MMX, Physical Address Ext, SYSCALL/SYSRET
17:24:55 up 41 min, 1 user, load average: 0.41, 0.43, 0.21; runlevel 3

------------------------------------------------------------------------
Benchmark Run: Wed Aug 14 2013 17:24:55 - 17:52:49
1 CPU in system; running 1 parallel copy of tests

Dhrystone 2 using register variables 20341976.9 lps (10.0 s, 7 samples)
Double-Precision Whetstone 2528.5 MWIPS (9.8 s, 7 samples)
Execl Throughput 3277.7 lps (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 674255.1 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 192608.0 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 1853774.9 KBps (30.0 s, 2 samples)
Pipe Throughput 1280960.8 lps (10.0 s, 7 samples)
Pipe-based Context Switching 208093.2 lps (10.0 s, 7 samples)
Process Creation 8273.4 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 3985.7 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 529.8 lpm (60.1 s, 2 samples)
System Call Overhead 1515850.7 lps (10.0 s, 7 samples)

Systm Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 20341976.9 1743.1
Double-Precision Whetstone 55.0 2528.5 459.7
Execl Throughput 43.0 3277.7 762.3
File Copy 1024 bufsize 2000 maxblocks 3960.0 674255.1 1702.7
File Copy 256 bufsize 500 maxblocks 1655.0 192608.0 1163.8
File Copy 4096 bufsize 8000 maxblocks 5800.0 1853774.9 3196.2
Pipe Throughput 12440.0 1280960.8 1029.7
Pipe-based Context Switching 4000.0 208093.2 520.2
Process Creation 126.0 8273.4 656.6
Shell Scripts (1 concurrent) 42.4 3985.7 940.0
Shell Scripts (8 concurrent) 6.0 529.8 883.0
System Call Overhead 15000.0 1515850.7 1010.6
========
System Benchmarks Index Score 1011.1

总结：
可能是刚刚开放测试，后台功能不全，bug多（重装系统后，密码登陆进不去，提示密码错误，重置很多次后才成功），重装次数限制8小时/次。价格没有优势。中国特色网络（无语），对联通、教育网来说有点慢，2M带宽平均500k左右，dd磁盘速度50+M/s，还算可以，比aliyun好多了（ps：aliyun测试25M/s），从Benchmarks得分来看1000+，分数不错。

原文：http://blog.linuxeye.com/353.html