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https://www.tsingfun.com/it/tech/506.html 

Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...有多台服务器,频繁的修改,会涉及到版本发布和部署的问题,非常的不方便。 Step 2: 总是骚扰IT部门的同事不太好,我们决定把这儿的统计脚本独立出来,并放到文件域,如:www.mysite_file.com/track/site_a.js,然后把这个js的引...
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Difference between a theta join, equijoin and natural join

... A theta join allows for arbitrary comparison relationships (such as ≥). An equijoin is a theta join using the equality operator. A natural join is an equijoin on attributes that have the same name in each relationship. Additionally,...
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如果你一心只想赚钱 那就别创业了 - 资讯 - 清泛网 - 专注C/C++及内核技术

...uckerberg拒绝了这个提议,以及来自谷歌等其它公司出价更高的收购提议。他连接所有人的使命还尚未完成。但如今,Facebook市值已超过2000亿美元。 十亿美元怎么说都不是一笔小数。想像一下如果谷歌和Facebook都已经以十亿美元...
https://www.tsingfun.com/it/tech/1388.html 

程序员之网络安全系列(一):为什么要关注网络安全? - 更多技术 - 清泛网...

...识,保护用户数据,同时防止自己被骗,对那些安全性不高的网站尽量不要使用,对那些安全不高的系统尽量不使用。 作为一个多年的程序员,我对网络安全相关的知识也非常少,我知道一些常规的东西,比如敏感数据加密存...
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What is the advantage of GCC's __builtin_expect in if else statements?

... I guess it should be something like: cmp $x, 0 jne _foo _bar: call bar ... jmp after_if _foo: call foo ... after_if: You can see that the instructions are arranged in such an order that the bar case precedes the foo case (as opposed to the C code). This can utilise the CPU ...
https://www.tsingfun.com/it/tech/1704.html 

phpcms与ucenter整合常见问题与解答 - 更多技术 - 清泛网 - 专注C/C++及内核技术

phpcms与ucenter整合常见问题与解答视频教程:http: v9.help.phpcms.cn html 2010 phpsso_install_1028 96.html常见问题与解答:1、整合完成后,在 phpcms 注册、登录均失败...视频教程: http://v9.help.phpcms.cn/html/2010/phpsso_install_1028/96.html 常见问题与...
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Why do x86-64 systems have only a 48 bit virtual address space?

... Because that's all that's needed. 48 bits give you an address space of 256 terabyte. That's a lot. You're not going to see a system which needs more than that any time soon. So CPU manufacturers took a shortcut. They use an instruction set...
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clang: how to list supported target architectures?

Currently I am interested in ARM in general and specifically iphone/android targets. But I just want to know more about clang, since it feels to play important role in the years to come. ...
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Can't pickle when using multiprocessing Pool.map()

...nsider it "easy" or not;-) is to add the infrastructure to your program to allow such methods to be pickled, registering it with the copy_reg standard library method. For example, Steven Bethard's contribution to this thread (towards the end of the thread) shows one perfectly workable approach to a...
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...\n", comm, str(args->filename)); }' Attaching 1 probe... snmp-pass /proc/cpuinfo snmp-pass /proc/stat snmpd /proc/net/dev snmpd /proc/net/if_inet6 ^C 这里我们跟踪文件打开的时候打印进程名和文件名。 该命令开始是tracepoint:syscalls:sys_enter_openat: 这个是t...