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When should I use the “strictfp” keyword in java?
...lations need to be deterministic no matter what the underlying hardware or CPU is. What's the trade-off? Most likely execution time.
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What is the easiest way to remove the first character from a string?
...sk as long as it's easily understood and maintainable and doesn't load the CPU unduly.
– the Tin Man
Nov 15 '16 at 23:03
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Concurrent.futures vs Multiprocessing in Python 3
...ay eventually frustrate you in ways the richer interfaces won't.
So far as CPU-bound tasks go, that's way too under-specified to say much meaningful. For CPU-bound tasks under CPython, you need multiple processes rather than multiple threads to have any chance of getting a speedup. But how much (i...
NSOperation vs Grand Central Dispatch
...down of these NSOperations was accounting for a significant portion of the CPU cycles in the running application, and was slowing things down. I replaced these with simple blocks and a GCD serial queue, and that overhead disappeared, leading to noticeably better rendering performance. This wasn't th...
App Inventor 2开发简单计算器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...序执行过程、跟踪变量值的方法，可以帮我们找到原因。问题出在输入等号之后，此时： 前数=计算结果 后数=0 算符=“”接下来输入算符，由于算符=“”，因此执行点击算符过程的“如果...则”分支，第一行代码为【前数=后数...
Why does this code using random strings print “hello world”?
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I'll just leave it here. Whoever has a lot of (CPU) time to spare, feel free to experiment :) Also, if you have mastered some fork-join-fu to make this thing burn all CPU cores (just threads are boring, right?), please share your code. I would greatly appreciate it.
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Async/Await vs Threads
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Worth mentioning await Task.Run for cpu-bound work. If I understand correctly, that sometimes accomplishes what one would otherwise create a thread, or a background worker, to do.
– ToolmakerSteve
Jun 27 '18 at 5:26
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What is Turing Complete?
... together to allow for all of those nice things that you mention. E.g. the CPU produces "tape" for the GPU to read so that it can write "tape" for the monitor so that the monitor can write "tape" to the user. Likewise, the CPU could produce "tape" for the hard drives, NICs, sound cards, etc.
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Is Java really slow?
...time compiled programs can't tweak their code in real-time to the specific CPU & system they're running on. JIT provides some very efficient loop transformations this way.
A couple of other historical facts contributed to the "Java is slow" reputation:
Before JIT compilation (Java 1.2/1.3), ...
How are everyday machines programmed?
...have 8 or 16 pins on the chip - compared to scores of pins in your regular CPU socket.
So the workflow is write some code (say, in C), compile it on your desktop machine. That compiler generates machine code for the embedded chip. Then that code is loaded onto the microprocessor (and you need speci...