【Linux知识】server性能测试--UnixBench

链接地址： http://blog.csdn.net/jason_asia/article/details/38309079

1.1. server性能测试UnixBench

分别DELL R720和DELL R610作为測试的server。因server配置不同，结果仅供參考.

下载：

wget http://byte-unixbench.googlecode.com/files/UnixBench5.1.3.tgz

安装：

tar zxf UnixBench5.1.3.tgz

cd UnixBench

make

执行：

./Run

server配置信息：

Product Name: Dell Inc. PowerEdge R720

Host Name: test

Kernel Version: 2.6.32-358.el6.x86_64 x86_64

OS Version: CentOS release 6.4 (Final)

Time Zone: Asia/Ho_Chi_Minh +0700

Char Set: en_US

Memory: 4 memories,total size is 32768MB,Speed: 1600 MHz,Type: DDR3

CPU info: Intel(R) Xeon(R) CPU E5-2609 v2 @2.50GHz, 2 * 4 core, cache size 10240 KB

Swap Info: 7999 MB, vm.swappiness = 0

Disk Capacity: /dev/sda: 584.7 GB

Raid Info: PERC H710 Mini, 512MB cache,BBU,FW21.2.0-0007

RAID1, strip 64 KB, 4 * 2disks/span

Current Cache Policy:WriteBack, ReadAdaptive, Direct, Write Cache OK if Bad BBU

BBU Info: Next Learn time: Tue May 27 17:40:472014,Relative State of Charge: 83 %,Charger Status: Unknown,isSOHGood: Yes

Disk Info: 8 * 136.732 GB , 6.0Gb/s ,port speed6.0Gb/s

File System: /home: xfs ,527G

/tmp: tmpfs ,16G

I/O scheduler: sda [deadline]

測试结果：

# time ./Run

make all

make[1]: Entering directory`/root/UnixBench'

Checking distribution of files

./pgms exists

./src exists

./testdir exists

./tmp exists

./results exists

make[1]: Leaving directory`/root/UnixBench'

sh: 3dinfo: command not found

# # # # # # # ##### ###### # # #### # #

# # ## # # # # # # # ## # # # # #

# # # # # # ## ##### ##### # # # # ######

# # # ## # ## # # # # # # # # #

# # # ## # # # # # # # ## # # # #

#### # # # # # ##### ###### # # #### # #

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 registervariables 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 2000maxblocks 1 2 3

1 x File Copy 256 bufsize 500maxblocks 1 2 3

1 x File Copy 4096 bufsize 8000maxblocks 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

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

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

8 x Execl Throughput 1 2 3

8 x File Copy 1024 bufsize 2000maxblocks 1 2 3

8 x File Copy 256 bufsize 500maxblocks 1 2 3

8 x File Copy 4096 bufsize 8000maxblocks 1 2 3

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

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

8 x Process Creation 1 2 3

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

8 x Shell Scripts (1 concurrent) 1 2 3

8 x Shell Scripts (8 concurrent) 1 2 3

========================================================================

BYTE UNIX Benchmarks (Version 5.1.3)

System: vn_dpcq_backup_dbserver: GNU/Linux

OS: GNU/Linux -- 2.6.32-358.el6.x86_64 -- #1 SMP Fri Feb 22 00:31:26 UTC2013

Machine: x86_64 (x86_64)

Language: en_US.utf8 (charmap="UTF-8",collate="UTF-8")

CPU 0: Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz (4999.8 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 1: Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz (4999.3 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 2: Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz (4999.8 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU3: Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz (4999.3 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 4: Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz (4999.8 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 5: Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz (4999.3 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 6: Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz (4999.8 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 7: Intel(R) Xeon(R) CPU E5-2609 v2 @ 2.50GHz (4999.3 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

22:00:22 up 77 days, 10:34, 2users, load average: 1.15, 1.01, 0.93;runlevel 3

------------------------------------------------------------------------

Benchmark Run: Wed Jul 30 2014 22:00:22 -22:27:47

8 CPUs in system; running 1 parallel copyof tests

Dhrystone 2 using register variables 27570040.0 lps (10.0 s, 7 samples)

Double-Precision Whetstone 3041.3 MWIPS (6.5 s, 7samples)

Execl Throughput 1855.2 lps (30.0 s, 2 samples)

File Copy 1024 bufsize 2000 maxblocks 816467.6 KBps (30.0 s, 2 samples)

File Copy 256 bufsize 500 maxblocks 218024.2 KBps (30.0 s, 2 samples)

File Copy 4096 bufsize 8000 maxblocks 1536957.9 KBps (30.0 s, 2 samples)

Pipe Throughput 1454276.0 lps (10.0 s, 7 samples)

Pipe-based Context Switching 88740.9 lps (10.0 s, 7 samples)

Process Creation 4974.0 lps (30.0 s, 2 samples)

Shell Scripts (1 concurrent) 3078.0 lpm (60.0 s, 2 samples)

Shell Scripts (8 concurrent) 1663.2 lpm (60.0 s, 2 samples)

System Call Overhead 1912485.4 lps (10.0 s, 7 samples)

System Benchmarks Index Values BASELINE RESULT INDEX

Dhrystone 2 using register variables 116700.0 27570040.0 2362.5

Double-Precision Whetstone 55.0 3041.3 553.0

Execl Throughput 43.0 1855.2 431.5

File Copy 1024 bufsize 2000 maxblocks 3960.0 816467.6 2061.8

File Copy 256 bufsize 500 maxblocks 1655.0 218024.2 1317.4

File Copy 4096 bufsize 8000 maxblocks 5800.0 1536957.9 2649.9

Pipe Throughput 12440.0 1454276.0 1169.0

Pipe-based Context Switching 4000.0 88740.9 221.9

Process Creation 126.0 4974.0 394.8

Shell Scripts (1 concurrent) 42.4 3078.0 725.9

Shell Scripts (8 concurrent) 6.0 1663.2 2772.1

System Call Overhead 15000.0 1912485.4 1275.0

========

System Benchmarks Index Score 1005.3

------------------------------------------------------------------------

Benchmark Run: Wed Jul 30 2014 22:27:47 -22:55:01

8 CPUs in system; running 8 parallel copiesof tests

Dhrystone 2 using register variables 221136112.5 lps (10.0 s, 7 samples)

Double-Precision Whetstone 24325.0 MWIPS (6.0 s, 7samples)

Execl Throughput 30167.6 lps (30.0 s, 2 samples)

File Copy 1024 bufsize 2000 maxblocks 281771.5 KBps (30.0 s, 2 samples)

File Copy 256 bufsize 500 maxblocks 77252.4 KBps (30.0 s, 2 samples)

File Copy 4096 bufsize 8000 maxblocks 878007.3 KBps (30.0 s, 2 samples)

Pipe Throughput 11413805.1 lps (10.0 s, 7 samples)

Pipe-based Context Switching 2370561.4 lps (10.0 s, 7 samples)

Process Creation 74692.8 lps (30.0 s, 2 samples)

Shell Scripts (1 concurrent) 35687.9 lpm (60.0 s, 2 samples)

Shell Scripts (8 concurrent) 5028.6 lpm (60.0 s, 2 samples)

System Call Overhead 4188710.7 lps (10.0 s, 7 samples)

System Benchmarks Index Values BASELINE RESULT INDEX

Dhrystone 2 using register variables 116700.0 221136112.5 18949.1

Double-Precision Whetstone 55.0 24325.0 4422.7

Execl Throughput 43.0 30167.6 7015.7

File Copy 1024 bufsize 2000 maxblocks 3960.0 281771.5 711.5

File Copy 256 bufsize 500 maxblocks 1655.0 77252.4 466.8

File Copy 4096 bufsize 8000 maxblocks 5800.0 878007.3 1513.8

Pipe Throughput 12440.0 11413805.1 9175.1

Pipe-based Context Switching 4000.0 2370561.4 5926.4

Process Creation 126.0 74692.8 5928.0

Shell Scripts (1 concurrent) 42.4 35687.9 8417.0

Shell Scripts (8 concurrent) 6.0 5028.6 8381.0

System Call Overhead 15000.0 4188710.7 2792.5

========

System Benchmarks Index Score 4037.6

real 54m39.103s

user 57m37.687s

sys 95m44.095s

#################################

server配置信息：

Product Name: Dell Inc. PowerEdge R610

Host Name: test

Kernel Version: 2.6.18-194.el5 x86_64

OS Version: Red Hat Enterprise Linux Serverrelease 5.3 (Tikanga)

Time Zone: Asia/Shanghai +0800

Char Set: en_US

Memory: 8 memories,total size is 16384MB,Speed: 1333 MHz (0.8 ns),Type: <OUT OF SPEC>

CPU info: Intel(R) Xeon(R) CPU E5506 @ 2.13GHz, 2 * 4 core, cache size 4096 KB

Swap Info: 8189 MB, vm.swappiness = 0

Disk Capacity: /dev/sda: 146.1 GB

Raid Info: PERC H700 Integrated, 512MBcache,BBU,FW 12.10.1-0001

RAID1, strip 64 KB, 1* 2 disks/span

Current Cache Policy:WriteBack, ReadAdaptive, Direct, Write Cache OK if Bad BBU

BBU Info: Next Learn time: Fri Aug1 06:17:162014,Relative State of Charge: 99 %,,

Disk Info: 2 * 136.732 GB , 6.0Gb/s ,port speed6.0Gb/s

File System: /home: xfs ,109G

/tmp: tmpfs ,7.9G

Nic Info: eth0 2.0.8e,link detectedis yes,speed 1000Mb/s.

eth1 2.0.8e,link detectedis yes,speed 1000Mb/s.

I/O scheduler: sda [deadline]

測试结果：

# ./Run

make all

make[1]: Entering directory`/root/UnixBench'

Checking distribution of files

./pgms exists

./src exists

./testdir exists

./tmp exists

./results exists

make[1]: Leaving directory`/root/UnixBench'

sh: 3dinfo: command not found

# # # # # # # ##### ###### # # #### # #

# # ## # # # # # # # ## # # # # #

# # # # # # ## ##### ##### # # # # ######

# # # ## # ## # # # # # # # # #

# # # ## # # # # # # # ## # # # #

#### # # # # # ##### ###### # # #### # #

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 registervariables 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 2000maxblocks 1 2 3

1 x File Copy 256 bufsize 500maxblocks 1 2 3

1 x File Copy 4096 bufsize 8000maxblocks 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

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

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

8 x Execl Throughput 1 2 3

8 x File Copy 1024 bufsize 2000maxblocks 1 2 3

8 x File Copy 256 bufsize 500maxblocks 1 2 3

8 x File Copy 4096 bufsize 8000maxblocks 1 2 3

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

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

8 x Process Creation 1 2 3

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

8 x Shell Scripts (1 concurrent) 1 2 3

8 x Shell Scripts (8 concurrent) 1 2 3

========================================================================

BYTE UNIX Benchmarks (Version 5.1.3)

System: my_tlbb_9018_192.168.104.124: GNU/Linux

OS: GNU/Linux -- 2.6.18-194.el5 -- #1 SMP Tue Mar 16 21:52:39 EDT 2010

Machine: x86_64 (x86_64)

Language: en_US.utf8 (charmap="UTF-8",collate="UTF-8")

CPU0: Intel(R) Xeon(R) CPU E5506 @ 2.13GHz (4256.1 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 1: Intel(R) Xeon(R) CPU E5506 @ 2.13GHz (4255.9 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 2: Intel(R) Xeon(R) CPU E5506 @ 2.13GHz (4256.0 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 3: Intel(R) Xeon(R) CPU E5506 @ 2.13GHz (4256.1 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 4: Intel(R) Xeon(R) CPU E5506 @ 2.13GHz (4256.0 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 5: Intel(R) Xeon(R) CPU E5506 @ 2.13GHz (4256.1 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 6: Intel(R) Xeon(R) CPU E5506 @ 2.13GHz (4256.0 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

CPU 7: Intel(R) Xeon(R) CPU E5506 @ 2.13GHz (4256.0 bogomips)

Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT,SYSCALL/SYSRET, Intel virtualization

21:44:42 up 3:48, 2 users, load average: 0.19, 0.43, 0.24; runlevel 3

------------------------------------------------------------------------

Benchmark Run: Wed Jul 30 2014 21:44:42 -22:12:14

8 CPUs in system; running 1 parallel copyof tests

Dhrystone 2 using register variables 12114116.1 lps (10.0 s, 7 samples)

Double-Precision Whetstone 2427.0 MWIPS (8.0 s, 7samples)

Execl Throughput 2141.1 lps (30.0 s, 2 samples)

File Copy 1024 bufsize 2000 maxblocks 688694.5 KBps (30.0 s, 2 samples)

File Copy 256 bufsize 500 maxblocks 218516.2 KBps (30.0 s, 2 samples)

File Copy 4096 bufsize 8000 maxblocks 1317519.2 KBps (30.0 s, 2 samples)

Pipe Throughput 1782756.3 lps (10.0 s, 7 samples)

Pipe-based Context Switching 170764.9 lps (10.0 s, 7 samples)

Process Creation 8493.3 lps (30.0 s, 2 samples)

Shell Scripts (1 concurrent) 4612.5 lpm (60.0 s, 2 samples)

Shell Scripts (8 concurrent) 2277.8 lpm (60.0 s, 2 samples)

System Call Overhead 2958948.5 lps (10.0 s, 7 samples)

System Benchmarks Index Values BASELINE RESULT INDEX

Dhrystone 2 using register variables 116700.0 12114116.1 1038.1

Double-Precision Whetstone 55.0 2427.0 441.3

Execl Throughput 43.0 2141.1 497.9

File Copy 1024 bufsize 2000 maxblocks 3960.0 688694.5 1739.1

File Copy 256 bufsize 500 maxblocks 1655.0 218516.2 1320.3

File Copy 4096 bufsize 8000 maxblocks 5800.0 1317519.2 2271.6

Pipe Throughput 12440.0 1782756.3 1433.1

Pipe-based Context Switching 4000.0 170764.9 426.9

Process Creation 126.0 8493.3 674.1

Shell Scripts (1 concurrent) 42.4 4612.5 1087.9

Shell Scripts (8 concurrent) 6.0 2277.8 3796.3

System Call Overhead 15000.0 2958948.5 1972.6

========

System Benchmarks Index Score 1122.4

------------------------------------------------------------------------

Benchmark Run: Wed Jul 30 2014 22:12:14 -22:39:50

8 CPUs in system; running 8 parallel copiesof tests

Dhrystone 2 using register variables 96804820.8 lps (10.0 s, 7 samples)

Double-Precision Whetstone 17210.6 MWIPS (8.3 s, 7samples)

Execl Throughput 24850.3 lps (29.9 s, 2 samples)

File Copy 1024 bufsize 2000 maxblocks 372899.1 KBps (30.0 s, 2 samples)

File Copy 256 bufsize 500 maxblocks 107051.9 KBps (30.0 s, 2 samples)

File Copy 4096 bufsize 8000 maxblocks 899185.2 KBps (30.0 s, 2 samples)

Pipe Throughput 14107729.1 lps (10.0 s, 7 samples)

Pipe-based Context Switching 3443772.2 lps (10.0 s, 7 samples)

Process Creation 55426.6 lps (30.0 s, 2 samples)

Shell Scripts (1 concurrent) 26969.8 lpm (60.0 s, 2 samples)

Shell Scripts (8 concurrent) 5222.1 lpm (60.0 s, 2 samples)

System Call Overhead 4752771.2 lps (10.0 s, 7 samples)

System Benchmarks Index Values BASELINE RESULT INDEX

Dhrystone 2 using register variables 116700.0 96804820.8 8295.2

Double-Precision Whetstone 55.0 17210.6 3129.2

Execl Throughput 43.0 24850.3 5779.1

File Copy 1024 bufsize 2000 maxblocks 3960.0 372899.1 941.7

File Copy 256 bufsize 500 maxblocks 1655.0 107051.9 646.8

File Copy 4096 bufsize 8000 maxblocks 5800.0 899185.2 1550.3

Pipe Throughput 12440.0 14107729.1 11340.6

Pipe-based Context Switching 4000.0 3443772.2 8609.4

Process Creation 126.0 55426.6 4398.9

Shell Scripts (1 concurrent) 42.4 26969.8 6360.8

Shell Scripts (8 concurrent) 6.0 5222.1 8703.6

System Call Overhead 15000.0 4752771.2 3168.5

========

System Benchmarks Index Score 3852.0

【Linux知识】server性能测试--UnixBench的更多相关文章

云server 性能测试web压力测试
前言:如今,云server主流.它已成为许多中小型企业的首选server,但是云server它是一个虚拟机.所以性能是一个大问题,从这里开始介绍云server性能测试,云webserver压力测试. ...
[原创]Linux下网络性能测试Netperf工具介绍及安装
[原创]Linux下网络性能测试Netperf工具介绍及安装 1 官方网站 http://www.netperf.org/netperf/ 2 Netperf介绍 Netperf是一种网络性能的测试工 ...
Android系统--输入系统（三）必备Linux知识_双向通信(scoketpair)
Android系统--输入系统(三)必备Linux知识_双向通信(scoketpair) 引入 1. 进程和APP通信创建进程读取.分发 - 进程发送输入事件给APP 进程读取APP回应的事件输 ...
LVS : Linux Virtual Server 负载均衡,集群,高并发,robust
1 LVS : Linux Virtual Server http://www.linuxvirtualserver.org/ http://www.linuxvirtualserver.org/zh ...
Linux netperf网络性能测试
Linux netperf网络性能测试 (2013-10-14 16:07:48) 转载▼ 网络性能测量的五项指标 1．可用性(availability) 测试网络性能的第一步是确定网络是否 ...
Linux知识：/root/.bashrc与/etc/profile的异同
Linux知识:/root/.bashrc与/etc/profile的异同要搞清bashrc与profile的区别,首先要弄明白什么是交互式shell和非交互式shell,什么是login shel ...
[Linux] Ubuntu Server 12.04 LTS 平台上搭建WordPress(Nginx+MySql+PHP) Part II
接着上一节继续搭建我们的LNMP平台,接下来我们安装PHP相关的服务 sudo apt-get install php5-cli php5-cgi php5-fpm php5-mcrypt php5- ...
[Linux] Ubuntu Server 12.04 LTS 平台上搭建WordPress(Nginx+MySQL+PHP) Part IV
接下来我们去下载 WorePress 用最新的 3.7.1 下载地址是:http://cn.wordpress.org/wordpress-3.7.1-zh_CN.zip 我们先建立一个文件夹 /va ...
J2EE程序员应该要掌握的linux知识
J2EE程序员应该要掌握的linux知识大型J2EE应用都在建构在linux环境下的.开发环境下我们可以通过samba映射成本地的网络驱动器,直接在windows环境下进行编程调试.但是最后的发布还 ...

随机推荐

使用perl读取Excel
使用perl读取Excel 环境 windows 7 ActiveState Perl Win32::OLE[perl package] 基本功能循环处理多个sheet 读取Excel单元,提取in ...
Drupal 7 模块开发建立模块帮助信息（hook_help）
建立模块请參考 <Drupal 7 模块开发建立> 假设你要支持中文,文件格式必须保存为 UTF-8.NO BOM ------------------------------ hook ...
php中foreach源码分析（编译原理）
php中foreach源码分析(编译原理) 一.总结编译原理(lex and yacc)的知识二.php中foreach源码分析 foreach是PHP中很常用的一个用作数组循环的控制语句.因为它 ...
C#人脸识别
C#百度人脸识别最近看到一只我家徒儿发来的链接,原来是一堆百度AI的SDK,于是一时兴起就做了一只人脸识别,喵喵喵(●'◡'●) 一.准备工作首先,当然是下载SDK啦:http://ai.baid ...
php汉字字符串长度和截取
mb_strlen("你好123",'utf-8');//返回5 strlen("你好");//返回几我也不知道,肯定不是2,但你想要2就用上面的 substr ...
Jquery前端分页插件pagination同步加载和异步加载
上一篇文章介绍了Jquery前端分页插件pagination的基本使用方法和使用案例,大致原理就是一次性加载所有的数据再分页.https://www.jianshu.com/p/a1b8b1db025 ...
[Angular] @ViewChild and template #refs to get Element Ref
We can use @ViewChild with component: @ViewChild(AuthMessageComponent) message: AuthMessageComponent ...
【t064】最勇敢的机器人
Time Limit: 1 second Memory Limit: 128 MB [问题描述] [背景] Wind设计了很多机器人.但是它们都认为自己是最强的,于是,一场比赛开始了~ [问题描述] ...
使用jsp，tomcat实现用户登录注册留言的代码
以下jsp中,未使用样式表对网页进行排版和表单的验证(每个jsp的表单填写的时候应该进行空值与空格的验证,防止提交时出错) 所有错误,链接到error.jsp <%@ page language ...
UIPasteboard粘贴板：UITableView复制粘贴功能（二）
这篇咱写写一写在UITableView上实用剪贴板的两种方法: 一:在自定义cell里面使用其实,在cell的使用跟在label里面的用法基本一样 1.放方法: - (BOOL)canBecomeF ...

【Linux知识】server性能测试--UnixBench

【Linux知识】server性能测试--UnixBench的更多相关文章

随机推荐

热门专题