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马化腾给创业者的3点建议：行业跨界领域最有机会诞生创新 - 资讯 - 清泛网 ...
...不平衡等等。在内地，其实很多学校也是蛮复杂，有很多问题，需要一些明朗的政策支持，可能下面做事情才会更加清晰。正是这次我们看到产学研的成果，我们看到李教授带出来的团队，正是得益于港科大比较清晰的政策，比...
How to repeat a string a variable number of times in C++?
...han copying many small blocks? I can think of branch prediction. Regarding CPU cache I am unsure which variant is preferred.
– Florian Kaufmann
Jan 21 '16 at 7:42
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Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities
... steps for some constant k. It is not really important whether "steps" are CPU cycles, assembly instructions, or (simple) C operations. That details is hidden by the constant k.
– Igor ostrovsky
Oct 20 '09 at 5:44
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HTML5 Canvas Resize (Downscale) Image High Quality?
....width = img.width;
imgCV.height = img.height;
var imgCtx = imgCV.getContext('2d');
imgCtx.drawImage(img, 0, 0);
return downScaleCanvas(imgCV, scale);
}
// scales the canvas by (float) scale < 1
// returns a new canvas containing the scaled image.
function downScaleCanvas(cv, sca...
FFMPEG (libx264) “height not divisible by 2”
...d significant slowness (you can check the ffmpeg log and if it shows using cpu capabilties: none! then that's bad). I'm not sure why they added that, but I'm not an Android developer.
– llogan
Nov 30 '17 at 21:37
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How do I get time of a Python program's execution?
... User time (seconds): 0.08
System time (seconds): 0.02
Percent of CPU this job got: 98%
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.10
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kby...
Garbage collector in Android
...t you wrote if you allow "performance" to mean something more general than CPU efficiency. On an Android device, the user's perception of performance is paramount. The developer may be prefer to run the GC while the user is pressing buttons for example, so the user will not be aware of the GC.
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warning this call is not awaited, execution of the current method continues
...' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. This also causes a new thread to be created, whereas a new thread will not necessarily be created with async/await alone.
– gregsdennis
Feb 26 '15...
JSON formatter in C#?
...0.3. Formatted a 6MB JSON file in under 5 seconds on a Win10 Intel i7-7700 CPU (4.20Ghz).
– batpox
Jul 28 '17 at 0:17
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Converting from Integer, to BigInteger
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Making strings to perform integer math wastes more CPU cycles than you would care to count.
– jbindel
Jan 31 '18 at 16:02
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