大约有 3,800 项符合查询结果（耗时：0.0143秒） [XML]
When to use Task.Delay, when to use Thread.Sleep?
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Or when you don't want to chew up CPU in a main loop.
– Eddie Parker
May 20 '14 at 21:23
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What is the best way to concatenate two vectors?
... for low iteration count. This assumes a good vector implementation, plus CPU instruction pipeline & [good] branch prediction, but those are pretty reliable assumptions for a modern toolchain and desktop machine. Don't know about smartphones though..
– boycy
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Node.js or Erlang
...ngle-threaded environment. So it's great at dispatching but not so good at CPU-intensive processing. To cover that ground you can fork off another process/thread that runs native C/C++ code. If all you're doing is async IO calls (ex IPC | bi-directional pipes) then node.js should be able to handle t...
Timeout a command in bash without unnecessary delay
...choose a polling interval. And if you set the polling too low, it will eat CPU with constant signaling, making the tlrbsf run even longer!
– system PAUSE
Mar 27 '09 at 0:28
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What is the difference between float and double?
...sion respectively C/C++ long double is far more variable depending on your CPU, compiler and OS. Sometimes it's the same as double, sometimes it's some system-specific extended format, Sometimes it's IEEE quad precision.
– plugwash
Feb 8 '19 at 5:27
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Are loops really faster in reverse?
...'t be able to optimize as good. Generally, it's limited by architecture or cpu registers that JIT uses. Initializing once and going down simply cleanest solution and that's why it's recommended all over the place.
– Pavel P
Oct 30 '12 at 18:28
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Fastest way to convert Image to Byte array
...out compression artefacts, pick a lossless format. If you're worried about CPU resources, pick a format which doesn't bother compressing - just raw ARGB pixels, for example. But of course that will lead to a larger byte array.
Note that if you pick a format which does include compression, there's n...
How do I script a “yes” response for installing programs?
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Be careful with yes as it is known to max out the CPU. stackoverflow.com/a/18164007/720665
– David Salamon
Aug 2 '16 at 9:44
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How can I shuffle the lines of a text file on the Unix command line or in a shell script?
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Here is a first try that's easy on the coder but hard on the CPU which prepends a random number to each line, sorts them and then strips the random number from each line. In effect, the lines are sorted randomly:
cat myfile | awk 'BEGIN{srand();}{print rand()"\t"$0}' | sort -k1 -n | c...
What is the volatile keyword useful for?
...So if Thread A is creating Singleton instance and just after creation, the CPU corrupts etc, all other threads will not be able to see the value of _instance as not null and they will believe it is still assigned null.
Why does this happen? Because reader threads are not doing any locking and unt...