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What is the global interpreter lock (GIL) in CPython?
...s in Python are only good for blocking I/O; your app will never go above 1 CPU core of processor usage
– Ana Betts
Aug 18 '09 at 15:26
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MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
...主机名作为名字,如此一来一旦主机名发生改变,就会出问题,所以推荐指定log_bin(从服务器的relay_log存在一样的问题)。
注:sync_binlog,innodb_flush_log_at_trx_commit,innodb_support_xa三个选项都是出于安全目的设置的,不是复制的...
服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的处理方法混为一谈,以为优化系统内核参数就可以解决问题,其实是不恰当的,优化系统内核参 数解决TIME_WAIT可能很容易,但是应对CLOSE_WAIT的情况还是需要从程序本身出发。现在来分别说说这两种情况的处理方法:
1.服务...
Do sealed classes really offer performance Benefits?
...iler implementation and execution environment.
Details
Many of modern CPUs use long pipeline structure to increase performance. Because CPU is incredibly faster than memory, CPU has to prefetch code from memory to accelerate pipeline. If the code is not ready at proper time, the pipelines will ...
Difference between scaling horizontally and vertically for databases [closed]
...ources whereas Vertical scaling means that you scale by adding more power (CPU, RAM) to an existing machine.
An easy way to remember this is to think of a machine on a server rack, we add more machines across the horizontal direction and add more resources to a machine in the vertical direction.
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Could not load file or assembly … An attempt was made to load a program with an incorrect format (Sy
...roject-->properties-->build - it was set for x86; setting it to "Any CPU" fixed this issue. I always thought that this setting was the same as the "platform target" dropdown in the configuration manager, but apparently it's not (in fact, the "platform target" in configuration manager doesn't ...
App Inventor 2 中文网 · 项目指南
...一名学生,升级VIP会员后,可以随时随地在线编程,遇到问题提问都能及时得到详细解答,我的App开发技能得到了极大的提升!另外,我享受到VIP学生价格优惠,非常划算! ...
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...
Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?
...oduced similar results: about 10 seconds to execute using around 3% of the CPU and 30 MB of memory. The only difference between the two testers was that the multithreaded one used 310 threads to execute, while the asynchronous one just 22. So in an application that would have combined both I/O bound...
转:postfix安装Q&A - 更多技术 - 清泛网 - 专注C/C++及内核技术
...org/forum/archive/2/0510/563.html)。现在把我安装过程中遇到的问题及解决方法提供给大家,以方便新手。高手就不要看了
说明一下:Q代表安装过程中遇到的问题,或者是日志中出现的现象。A:代表解决方法。
在这里要感谢...