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What's the difference between deadlock and livelock?
...your implementation is not careful, you can fall on livelock, spending all CPU on the lock mechanism.
Also see:
https://preshing.com/20120226/roll-your-own-lightweight-mutex/
Is my spin lock implementation correct and optimal?
Summary:
Deadlock: situation where nobody progress, doing nothing...
Random shuffling of an array
... one in an object just to do a sort is a bit costly, both in memory and in CPU.
– PhiLho
Jul 11 '14 at 11:11
14
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Performance optimization strategies of last resort [closed]
...tion process that at the core was a 3-vector dotted with a 3x3 matrix. The CPU had a matrix multiply in hardware that left out some of the cross terms and went real fast compared to all the other ways to do it, but only supported 4x4 matrices and 4-vectors of floats. Changing the code to carry aroun...
jasmine: Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL
...at helped until I noticed my Macbook was running sluggishly. I noticed the CPU was pegged by another process, which I killed. The Jasmine async error disappeared and my tests are fine once again.
Don't ask me why, I don't know. But in my circumstance it seemed to be a lack of system resources at fa...
A Windows equivalent of the Unix tail command [closed]
...functionality when downloading a tool isn't an option! This code will eat CPU though, as it will continually spin in followup for -f.
– armstrhb
Nov 14 '13 at 16:18
1
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Running multiple AsyncTasks at the same time — not possible?
...4 (API 19) the above fields are changed to this:
private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
private static final int CORE_POOL_SIZE = CPU_COUNT + 1;
private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
private static final BlockingQueue<Runnable&g...
蜘蛛的故事 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...下来，问这只蜘蛛：“你我相见总算是有缘，我来问你个问题，看你修炼了这一千多年来，有什么真知拙见。怎么样？”蜘蛛遇见佛主很是高兴，连忙答应了。佛主问到：“世间什么才是最珍贵的？”蜘蛛想了想，回答到：“世...
解决：无法通过windows installer服务安装此安装程序包。您必须安装带有更...
...必须安装带有更新版本windows installer服务的Windows出现这个问题不让安装程序，可...
无法通过windows installer服务安装此安装程序包。您必须安装带有更新版本windows installer服务的Windows。
出现这个问题不让安装程序，可以到微软网...
解决：参数 basepath 不能是相对路径？？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...改动或手动设置参数后项目路径发生了变更都会出现这个问题。项目属性 -> 配置 -> 调试：改成上图（即VS默认配置）即...由于手动将调试参数改动或手动设置参数后项目路径发生了变更都会出现这个问题。
项目属性 -> 配置 ->...
warning C4996 - C/C++ - 清泛网 - 专注C/C++及内核技术
...可能会产生诸如内存泄露、缓冲区溢出、非法访问等安全问题。这些函数如：strcpy、strcat等。
对于这些问题，VC2005建议使用这些函数的更高级的安全版本，即在这些函数名后面加了一个_s的函数。这些安全版本函数使用起来更...