处理完毕,关闭数据库连接,释放资源下面是按照上述的流程,在Perl中访问MySQL的一段代码,以这段代码为例,详细说明DBI的使用方法。 #!.../usr/bin/perl -w use strict; use DBI; my $dbh = DBI->connect("DBI:my...
Windows和Linux下Whois命令的安装和使用 PHP线程安全与非线程安全版本的本质区别 重置MySQL密码的一种方法 利用.my.cnf,安全实现Shell下MySQL免输入密码登录 Linux多核并行编程关键技术 error: perl module ExtUtils::Embed is required linux远程空闲超时自动退出 CentOS 通过 yum –exclude=postfix* update 排除不需要...
shell:A command set, run in remote SSH sever with local shell/python/perl script(to be enhanced), this command is inherited from the scripting modules Internal event:Show event bindings of the console code luajit:Switch into theaLuaJITconsole ...
-in dev interrupts -sy system calls -cs kernel thread contect swtiches CPU breakdown of percentage usage of CPU time.-us user time -sy system time -id cpu idle time -wa cpu cycles to determine that the curent process is waiting and there is pending disk input/ output....
-p, --pid <n> stat events on existing process id -t, --tid <n> stat events on existing thread id -a, --all-cpus system-wide collection from all CPUs -c, --scale scale/normalize counters -v, --verbose be moreverbose(show counter open errors, etc)-r, --repeat <n> repeat comm...
binary in the sqlite package. Likewise, rename the Thread.3 man page to Thread_tcl.3 so that we don't overwrite the one in the perl package. Thanks to TommyC7. x/fslsfonts-1.0.7-x86_64-1.txz: Upgraded. x/libdrm-2.4.124-x86_64-1.txz: Upgraded. x/libwacom-2.14.0-x86_64-1....
shell :A command set, run in remote SSH sever with local shell/python/perl script(to be enhanced), this command is inherited from the scripting modules Internal event :Show event bindings of the console code luajit :Switch into thea LuaJIT console ilua :Enter into Lua console, can access...
perf是linux上的性能分析工具,perf可以对event进行统计得到event的发生次数,或者对event进行采样,得到每次event发生时的相关数据(cpu、进程id、运行栈等),利用这些数据来对程序性能进行分析。 perf可以统计或采样的event有很多,如果我们要分析cpu,那么我们可以使用cpu-cycles、cpu-clock来衡量占用cpu的程序的分布情况,还可...
This is perl, v5.8.8 built for x86_64-linux-thread-multi 1. 1. 1. Copyright 1987-2006, Larry Wall 1. 1. 1. Perl may be copied only under the terms of either the Artistic License or the 1. GNU General Public License, which may be found in the Perl 5 source kit. ...
TCP/IP协议 TCP/IP 协议栈是一系列网络协议(protocol)的总和,是构成网络通信的核心骨架,它定义了电子设备如何连入因特网,以及数据如何在它们之间进行传输。...OSI 7层模型和TCP/IP四层网络模型对应关系 计算机网路基础的知识不过多讲解,主要是让大家明白接下来的Linux