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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...
谈谈创业公司技术的工作模式 - 资讯 - 清泛网 - 专注C/C++及内核技术
...、测试、运维不管做什么工作，都需要站在一定高度思考问题，既然创业就需要以创业的角度思考，这样对自己的职业发展有帮助，也可以做好产品。
在根据一个大需求技术总监和大家讨论，把模糊的东西逐步清晰化得到一个...
Static linking vs dynamic linking
... is usually negligible. Inside the DLL there is some more overhead on i386 CPU's, because they can't generate position independent code. On amd64, jumps can be relative to the program counter, so this is a huge improvement.
2) This is correct. With optimizations guided by profiling you can usually ...
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...
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
...
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...
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...
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
...
What are the best Haskell libraries to operationalize a program? [closed]
...num_byte_usage_samples", "1")
,("peak_megabytes_allocated", "1")
,("init_cpu_seconds", "0.00")
,("init_wall_seconds", "0.00")
,("mutator_cpu_seconds", "0.00")
,("mutator_wall_seconds", "0.00")
,("GC_cpu_seconds", "0.00")
,("GC_wall_seconds", "0.00")
]
Ideally you could attach to a running ...
程序员之网络安全系列（六）：动态密码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
程序员之网络安全系列（五）：数字证书以及12306的证书问题 我们使用了数字证书，确保了对方的公钥身份，也就是互联网中确定了要访问的网站就是你要访问的网站。
但是我们如何确定要访问这个网站的用户就是要访问的用...