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阿里云在 2015 年末推出了系列二 ECS，因为学习原因我也没有及时贴出测评内容，所以今天也写一篇。官方对系列二的介绍是：
系列 II 较系列 I 进行了硬件升级，采用 Haswell CPU、DDR4 内存，并默认为 I/O
优化实例，同时增加了一些新的指令集，使整数和浮点运算的性能翻倍，整体计算能力更强。
其实，主要就是 CPU 从 E5 V1/V2 升级到了 E5 v3 （Haswell 22nm 架构）并且支持 DDR4 内存（频率更高，对内存指向性计算更有利。）不过还有的就是，系列二默认都是 KVM 虚拟化架构，且都是 I/O 优化实例，磁盘性能更好。
内容
实例信息
杭州 B 区， 1核2G,Centos7，80G 高效磁盘（非SSD）
值得说明的是，由于使用 DDR4 内存性能肯定是有进步，但是以我的水平还无法查看虚拟化环境下的内存频率等性能，所以这里就不能贴出了。
系统信息
System Info
-----------
Processor : Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz
CPU Cores : 1
Frequency : 2494.224 MHz
Memory : 1841 MB
Swap : 0 MB
Uptime : 16 min,
OS : S
Arch : x86_64 (64 Bit)
Kernel : 3.10.0-123.9.3.el7.x86_64
Hostname : MF8.BIZ
查看虚拟化
[[email protected] ~]# virt-what
kvm
磁盘信息
[[email protected] ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 84G 1.6G 78G 2% /
devtmpfs 913M 0 913M 0% /dev
tmpfs 921M 0 921M 0% /dev/shm
tmpfs 921M 8.3M 913M 1% /run
tmpfs 921M 0 921M 0% /sys/fs/cgroup
CPU信息
[[email protected] ~]# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 1
On-line CPU(s) list: 0
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 63
Model name: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz
Stepping: 2
CPU MHz: 2494.224
BogoMIPS: 4988.44
Hypervisor vendor: KVM
Virtualization type: full
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 30720K
NUMA node0 CPU(s): 0
磁盘性能
均测试 5 次，这里显示平均数。
[[email protected] ~]# dd bs=64k count=4k if=/dev/zero of=test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 2.91641 s, 92.0 MB/s
[[email protected] ~]# dd bs=64k count=4k if=/dev/zero of=test conv=fdatasync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 4.39297 s, 61.1 MB/s
[[email protected] ~]# 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, 20.5172 s, 13.1 MB/s
[[email protected] ~]# hdparm -t /dev/vda1
/dev/vda1:
Timing buffered disk reads: 194 MB in 3.01 seconds = 64.53 MB/sec
Unix Benchmark 跑分
由于实例只有 1核心，因此跑分也只有单核心的分数。
# # # # # # # ##### ###### # # #### # #
# # ## # # # # # # # ## # # # # #
# # # # # # ## ##### ##### # # # # ######
# # # # # # ## # # # # # # # # #
# # # ## # # # # # # # ## # # # #
#### # # # # # ##### ###### # # #### # #
Version 5.1.3 Based on the Byte Magazine Unix Benchmark
Multi-CPU version Version 5 revisions by Ian Smith,
Sunnyvale, CA, USA
January 13, 2011 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 5.1.3)
System: MF8.BIZ: GNU/Linux
OS: GNU/Linux -- 3.10.0-123.9.3.el7.x86_64 -- #1 SMP Thu Nov 6 15:06:03 UTC 2014
Machine: x86_64 (x86_64)
Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
CPU 0: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz (4988.4 bogomips)
x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET
20:34:19 up 26 min, 1 user, load average: 0.21, 0.23, 0.15; runlevel 3
------------------------------------------------------------------------
Benchmark Run: Sat Jan 23 2016 20:34:19 - 21:02:28
1 CPU in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 29013404.5 lps (10.0 s, 7 samples)
Double-Precision Whetstone 3665.3 MWIPS (9.9 s, 7 samples)
Execl Throughput 3821.5 lps (29.8 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 998972.1 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 273828.3 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 2402552.4 KBps (30.0 s, 2 samples)
Pipe Throughput 1877731.1 lps (10.0 s, 7 samples)
Pipe-based Context Switching 340432.0 lps (10.0 s, 7 samples)
Process Creation 12130.8 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 5336.9 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 719.7 lpm (60.1 s, 2 samples)
System Call Overhead 3803522.8 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 29013404.5 2486.2
Double-Precision Whetstone 55.0 3665.3 666.4
Execl Throughput 43.0 3821.5 888.7
File Copy 1024 bufsize 2000 maxblocks 3960.0 998972.1 2522.7
File Copy 256 bufsize 500 maxblocks 1655.0 273828.3 1654.6
File Copy 4096 bufsize 8000 maxblocks 5800.0 2402552.4 4142.3
Pipe Throughput 12440.0 1877731.1 1509.4
Pipe-based Context Switching 4000.0 340432.0 851.1
Process Creation 126.0 12130.8 962.8
Shell Scripts (1 concurrent) 42.4 5336.9 1258.7
Shell Scripts (8 concurrent) 6.0 719.7 1199.5
System Call Overhead 15000.0 3803522.8 2535.7
========
System Benchmarks Index Score 1490.8
不错啊
如果有系列二可以选择，就一定好选系列二