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栈和队列的面试题Java实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...就能保证min存放的是最小值。但是这样的话，会存在一个问题：如果最小的元素出栈了，那怎么知道剩下的元素中哪个是最小的元素呢？
改进思路：
这里需要加一个辅助栈，用空间换取时间。辅助栈中，栈顶永远保存着当前...
How to clear MemoryCache?
... Change monitor still gets called. 3. My machine was swallowing all of the CPU, and taking a really long time to clear 30k items from the cache when I was running performance tests. A few times after waiting 5+ minutes I just killed the tests.
– Aaron M
Sep 24 ...
Debug vs. Release performance
...os and cons, and a general "running in debug is slower, but only if you're CPU bound" statement is enough to help with the decision.
– Josh Mouch
Dec 18 '18 at 16:05
add a com...
How to check if a file is a valid image file?
...dard Pillow or 40 MBytes/sec with Pillow-SIMD module (modern 2.5Ghz x86_64 CPU).
For the other formats psd,xcf,.. you can use Imagemagick wrapper Wand, the code is as follows:
im = wand.image.Image(filename=filename)
temp = im.flip;
im.close()
But, from my experiments Wand does not detect trunca...
Why is ArrayDeque better than LinkedList
...
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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Benchmarking small code samples in C#, can this implementation be improved?
...he unexpected. For example - "How do the two code snippets work under high CPU load/network usage/disk thrashing/etc." They're great for basic logic checks to see if a particular algorithm works significantly faster than another. But to properly test most code performance you'd have to create a test...
When to use volatile with multi threading?
...weakly-ordered memory might be a problem for this use-case: all real-world CPUs have coherent shared memory so volatile will work for this on real C++ implementations. But still don't do it.
Some discussion in comments seems to be talking about other use-cases where you would need something strong...
SSMS插件开发指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...本不能高于SSMS的版本，否则会出现各种各样意想不到的问题。
SSMS2008一般采用VS2005或VS2008开发，SSMS2012采用VS2012开发。SSMS2008与SSMS2012一些获取对象等细节方面也有少量差异。最好使用各自的VS版本生成基本代码后，再添砖加瓦...
How to make a function wait until a callback has been called using node.js
....runNoWait(). That could avoid some problems with blocking, but takes 100% CPU.)
Note that this approach kind of invalidates the whole purpose of Nodejs, i.e. to have everything async and non-blocking. Also, it could increase your callstack depth a lot, so you might end up with stack overflows. If ...
How does akka compare to Erlang? [closed]
...rlang VM can pause the process and let other hungry processes to take more CPU cycles. That's a very important feature that JVM doesnot provide.
– Daniel
Jun 4 '15 at 2:57
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