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Python: List vs Dict for look up table
... than both list and set for large data sets, running python 2.7.3 on an i7 CPU on linux:
python -mtimeit -s 'd=range(10**7)' '5*10**6 in d'
10 loops, best of 3: 64.2 msec per loop
python -mtimeit -s 'd=dict.fromkeys(range(10**7))' '5*10**6 in d'
10000000 loops, best of 3: 0.0759 usec per loop
py...
How do you performance test JavaScript code?
CPU Cycles, Memory Usage, Execution Time, etc.?
22 Answers
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C语言之父辞世引发“分号”悼念 - 创意 - 清泛网 - 专注C/C++及内核技术
...要一门高级计算机语言做工具，为了解决程序的可移植性问题，肯·汤普逊和丹尼斯·里奇决定对它进行简单改进，形成 NB语言。但NB在Unix的移植方面依然不尽人意，此后里奇又对NB语言做了改进，C语言诞生。
这被计算机界认为...
What does Java option -Xmx stand for? [duplicate]
...lt;size> set java thread stack size
-Xprof output cpu profiling data
-Xfuture enable strictest checks, anticipating future default
-Xrs reduce use of OS signals by Java/VM (see documentation)
-Xcheck:jni perform additional checks for J...
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...
Manipulate a url string by adding GET parameters
... performance, since this will be a lot faster than parse_url and also less cpu intensive. Tradeoff is that it is not checking for an existing $varName.
– Dennis Stücken
Apr 4 '18 at 12:13
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Listen for key press in .NET console app
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Won't this loop consume a lot of CPU/RAM? If not, how so?
– Sofia
Feb 29 at 3:05
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Quick and easy file dialog in Python?
...t hangs. I'm still able to type in the terminal, but nothing happens. Also cpu goes to 0% for my program. Any advice?
– Diana
Jul 2 '13 at 20:00
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How do you compare structs for equality in C?
... @JSalazar Easier for you maybe, but much harder for the compiler and the CPU and thus also much slower. Why do you think compiler add padding in the first place? Certainly not to waste memory for nothing ;)
– Mecki
Mar 31 '14 at 22:48
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Where does the iPhone Simulator store its data?
...pp in the simulator
Open Activity Monitor
Find the name of your app in the CPU tab
Double-click it and open the "Open Files and Ports"
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