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JAVA线程池管理及分布式HADOOP调度框架搭建 - 人工智能(AI) - 清泛IT社区，...
...就不好了。需要普及一下计算机硬件的一些知识。我们的cpu是个运算器，线程执行就需要这个运算器来运行。不过这个资源只有一个，大家就会争抢。一般通过以下几种算法实现争抢cpu的调度：1、队列方式，先来先服务。不管...
Why does pycharm propose to change method to static
...out_self()
def is_not_used(self):
pass
Workaround #2 [Thanks @DavidPärsson]
# noinspection PyMethodMayBeStatic
def bar(self):
doing_something_without_self()
The application I had for this (the reason I could not use @staticmethod) was in making a table of handler functions for respond...
Lock-free multi-threading is for real threading experts
...e from ensuring correct load/store ordering.
Contrary to one's intuitions, CPUs are free to reorder memory reads/writes - they are very smart, by the way: you will have a hard time observing this from a single thread. You will, however run into issues when you start to do multi-threading on multiple...
Commit only part of a file in Git
...nswered Feb 23 '12 at 10:37
FrançoisFrançois
7,11022 gold badges1818 silver badges1616 bronze badges
...
Spinlock versus Semaphore
... means that acquiring a spinlock is a "busy" operation that possibly burns CPU cycles for a long time (maybe forever!) while it effectively achieves "nothing".
The main incentive for such an approach is the fact that a context switch has an overhead equivalent to spinning a few hundred (or maybe tho...
What Process is using all of my disk IO
If I use "top" I can see what CPU is busy and what process is using all of my CPU.
7 Answers
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How to return a result from a VBA function
...ted Sep 15 '14 at 7:23
Jean-François Corbett
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answered May 6 '10 at 14:13
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How do you tell if caps lock is on using JavaScript?
... addressing...
uppercase A-Z or 'Ä', 'Ö', 'Ü',
lowercase a-Z or 0-9 or 'ä', 'ö', 'ü'
The above keys are just sample representation.
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How to discover number of *logical* cores on Mac OS X?
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You can do this using the sysctl utility:
sysctl -n hw.ncpu
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Why is ArrayDeque better than LinkedList
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Also, since the linked list nodes are allocated here and there, usage of CPU cache won't provide much benefit.
If it might be of interest, I have a proof that adding (appending) an element to ArrayList or ArrayDeque runs in amortized constant time; refer to this.
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