[root@vps ~]# free -m
total used free shared buffers cached
Mem: 512 22 489 0 0 10
-/+ buffers/cache: 11 500
Swap: 0 0 0

top - 07:50:35 up 4:25, 1 user, load average: 0.00, 0.00, 0.00
Tasks: 21 total, 1 running, 20 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 524288k total, 23376k used, 500912k free, 0k buffers
Swap: 0k total, 0k used, 0k free, 10980k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 20 0 2900 1376 1200 S 0.0 0.3 0:00.00 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd/105
3 root 20 0 0 0 0 S 0.0 0.0 0:00.00 khelper/105
123 root 16 -4 2464 580 336 S 0.0 0.1 0:00.00 udevd
459 root 20 0 35972 1328 1000 S 0.0 0.3 0:00.00 rsyslogd
473 root 20 0 8576 1008 524 S 0.0 0.2 0:00.00 sshd
480 root 20 0 3196 896 708 S 0.0 0.2 0:00.00 xinetd
487 root 20 0 8768 740 308 S 0.0 0.1 0:00.00 saslauthd
489 root 20 0 8768 492 60 S 0.0 0.1 0:00.00 saslauthd
503 root 20 0 12348 1888 720 S 0.0 0.4 0:00.25 sendmail
511 smmsp 20 0 12144 1692 660 S 0.0 0.3 0:00.00 sendmail
519 root 20 0 11136 3236 1824 S 0.0 0.6 0:00.30 httpd
522 apache 20 0 11136 2820 1312 S 0.0 0.5 0:00.00 httpd
527 root 20 0 3884 1164 612 S 0.0 0.2 0:00.02 crond
576 apache 20 0 11136 2756 1256 S 0.0 0.5 0:00.00 httpd
577 apache 20 0 11136 2756 1256 S 0.0 0.5 0:00.00 httpd
578 apache 20 0 11136 2756 1256 S 0.0 0.5 0:00.00 httpd
579 apache 20 0 11136 2788 1292 S 0.0 0.5 0:00.00 httpd
685 root 20 0 11716 3812 2988 S 0.0 0.7 0:00.05 sshd
687 root 20 0 3048 1556 1320 S 0.0 0.3 0:00.00 bash
711 root 20 0 2568 1056 876 R 0.0 0.2 0:00.00 top

[root@vps ~]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz
stepping : 9
cpu MHz : 3100.150
cache size : 8192 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 moni"不可描述" ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm arat epb xsaveopt pln pts dts tpr_"不可描述" vnmi flexpriority ept vpid fsgsbase smep erms
bogomips : 6200.30
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

[root@vps ~]# df -lh
Filesystem Size Used Avail Use% Mounted on
/dev/simfs 25G 587M 25G 3% /
none 256M 4.0K 256M 1% /dev
none 256M 0 256M 0% /dev/shm

下载我是很看重的：【1】先测个cachefly
[root@vps ~]# wget http://cachefly.cachefly.net/100mb.test
--2013-11-30 07:52:05-- http://cachefly.cachefly.net/100mb.test
Resolving cachefly.cachefly.net... 205.234.175.175
Connecting to cachefly.cachefly.net|205.234.175.175|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100mb.test'

100%[=========================================>] 104,857,600 111M/s in 0.9s

2013-11-30 07:52:06 (111 MB/s) - `100mb.test' saved [104857600/104857600]

美洲，下载个凤凰城的：
[root@vps ~]# wget http://yum.phx.singlehop.com/singlehop/500megabytefile.tar.gz
--2013-11-30 07:56:03-- http://yum.phx.singlehop.com/singlehop/500megabytefile.tar.gz
Resolving yum.phx.singlehop.com... 108.178.62.202
Connecting to yum.phx.singlehop.com|108.178.62.202|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 500000000 (477M) [application/x-gzip]
Saving to: `500megabytefile.tar.gz'

100%[=========================================>] 500,000,000 57.4M/s in 8.4s

2013-11-30 07:56:12 (56.7 MB/s) - `500megabytefile.tar.gz' saved [500000000/500000000]

亚洲，下载linode的日本东京：
root@vps:~# wget http://speedtest.tokyo.linode.com/100MB-tokyo.bin
--2013-11-30 12:19:02-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
Resolving speedtest.tokyo.linode.com... 106.187.96.148, 2400:8900::4b
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100MB-tokyo.bin'

100%[===========================================>] 104,857,600 13.7M/s in 8.4s

2013-11-30 12:19:10 (11.9 MB/s) - `100MB-tokyo.bin' saved [104857600/104857600]

欧洲，下载linode的英国伦敦：
root@vps:~# wget http://speedtest.london.linode.com/100MB-london.bin
--2013-11-30 12:19:49-- http://speedtest.london.linode.com/100MB-london.bin
Resolving speedtest.london.linode.com... 176.58.107.39, 2a01:7e00::4b
Connecting to speedtest.london.linode.com|176.58.107.39|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100MB-london.bin'

100%[===========================================>] 104,857,600 3.18M/s in 29s

2013-11-30 12:20:18 (3.49 MB/s) - `100MB-london.bin' saved [104857600/104857600]

硬盘的i/o问题：
[root@vps ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 11.5039 s, 93.3 MB/s

相隔3小时后：

root@vps:~# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 11.3297 s, 94.8 MB/s

[root@vps ~]# wget freevps.us/downloads/bench.sh -O - -o /dev/null|bash
CPU model : Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz
Number of cores : 1
CPU frequency : 3100.150 MHz
Total amount of ram : 512 MB
Total amount of swap : 0 MB
System uptime : 4:28,
Download speed from CacheFly: 110MB/s
Download speed from Coloat, Atlanta GA: 16.4MB/s
Download speed from Softlayer, Dallas, TX: 27.7MB/s
Download speed from Linode, Tokyo, JP: 11.9MB/s
Download speed from i3d.net, NL:
Download speed from Leaseweb, Haarlem, NL: 8.13MB/s
Download speed from Softlayer, Singapore: 7.66MB/s
Download speed from Softlayer, Seattle, WA: 61.4MB/s
Download speed from Softlayer, San Jose, CA: 100MB/s
Download speed from Softlayer, Washington, DC: 17.7MB/s
I/O speed : 94.0 MB/s

UNIX BENCHMARK:单核跑分哦！算很不错了！

# # # # # # # ##### ###### # # #### # #
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# # # # # # ## ##### ##### # # # # ######
# # # # # # ## # # # # # # # # #
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Version 5.1.2 Based on the Byte Magazine Unix Benchmark

Multi-CPU version Version 5 revisions by Ian Smith,
Sunnyvale, CA, USA
December 22, 2007 johantheghost at yahoo period com

1 x Dhrystone 2 using register variables 1 2 3 4 5 6 7 8 9 10

1 x Double-Precision Whetstone 1 2 3 4 5 6 7 8 9 10

1 x Execl Throughput 1 2 3

1 x File Copy 1024 bufsize 2000 maxblocks 1 2 3

1 x File Copy 256 bufsize 500 maxblocks 1 2 3

1 x File Copy 4096 bufsize 8000 maxblocks 1 2 3

1 x Pipe Throughput 1 2 3 4 5 6 7 8 9 10

1 x Pipe-based Context Switching 1 2 3 4 5 6 7 8 9 10

1 x Process Creation 1 2 3

1 x System Call Overhead 1 2 3 4 5 6 7 8 9 10

1 x Shell Scripts (1 concurrent) 1 2 3

1 x Shell Scripts (8 concurrent) 1 2 3

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

System: vps: GNU/Linux
OS: GNU/Linux -- 2.6.32-042stab079.6 -- #1 SMP Mon Aug 26 19:47:50 MSK 2013
Machine: i686 (unknown)
Language: en_US.utf8 (charmap="ANSI_X3.4-1968", collate="ANSI_X3.4-1968")
CPU 0: Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz (6200.3 bogomips)
Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
12:25:58 up 34 min, 1 user, load average: 0.12, 0.05, 0.01; runlevel 2

------------------------------------------------------------------------
Benchmark Run: Sat Nov 30 2013 12:25:58 - 12:54:06
1 CPU in system; running 1 parallel copy of tests

Dhrystone 2 using register variables 20987293.5 lps (10.0 s, 7 samples)
Double-Precision Whetstone 3071.3 MWIPS (10.1 s, 7 samples)
Execl Throughput 6302.9 lps (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 664476.0 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 176967.2 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 1910101.9 KBps (30.0 s, 2 samples)
Pipe Throughput 1061956.6 lps (10.0 s, 7 samples)
Pipe-based Context Switching 265663.2 lps (10.0 s, 7 samples)
Process Creation 16064.7 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 6609.1 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 916.5 lpm (60.0 s, 2 samples)
System Call Overhead 801430.8 lps (10.0 s, 7 samples)

System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 20987293.5 1798.4
Double-Precision Whetstone 55.0 3071.3 558.4
Execl Throughput 43.0 6302.9 1465.8
File Copy 1024 bufsize 2000 maxblocks 3960.0 664476.0 1678.0
File Copy 256 bufsize 500 maxblocks 1655.0 176967.2 1069.3
File Copy 4096 bufsize 8000 maxblocks 5800.0 1910101.9 3293.3
Pipe Throughput 12440.0 1061956.6 853.7
Pipe-based Context Switching 4000.0 265663.2 664.2
Process Creation 126.0 16064.7 1275.0
Shell Scripts (1 concurrent) 42.4 6609.1 1558.8
Shell Scripts (8 concurrent) 6.0 916.5 1527.5
System Call Overhead 15000.0 801430.8 534.3
========
System Benchmarks Index Score 1189.2

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