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Timer function to provide time in nano seconds using C++

...e QueryPerformanceCounter. And here is more on QPC Apparently there is a known issue with QPC on some chipsets, so you may want to make sure you do not have those chipset. Additionally some dual core AMDs may also cause a problem. See the second post by sebbbi, where he states: QueryPerformance...
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Is there a performance difference between i++ and ++i in C++?

...ent translation units. Compiler with g++ 4.5. Ignore the style issues for now // a.cc #include <ctime> #include <array> class Something { public: Something& operator++(); Something operator++(int); private: std::array<int,PACKET_SIZE> data; }; int main () { S...
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How to profile a bash shell script slow startup?

...2 2> >(tee /tmp/sample-time.$$.log | sed -u 's/^.*$/now/' | date -f - +%s.%N >/tmp/sample-time.$$.tim) set -x Doing this will run date only once. There is a quick demo/test to show how it work: for i in {1..4};do echo now;sleep .05;done| date -f - +%N ...
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How do I get the current Date/time in DD/MM/YYYY HH:MM format?

... assumed you meant HH:MM instead of HH:SS, but it's easy to change): Time.now.strftime("%d/%m/%Y %H:%M") #=> "14/09/2011 14:09" Updated for the shifting: d = DateTime.now d.strftime("%d/%m/%Y %H:%M") #=> "11/06/2017 18:11" d.next_month.strftime("%d/%m/%Y %H:%M") #=> "11/07/2017 18:11" ...
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How to convert an address into a Google Maps Link (NOT MAP)

...: maps.google.com/?ll=38.882147,-76.99017 UPDATE As of year 2017, Google now has an official way to create cross-platform Google Maps URLs: https://developers.google.com/maps/documentation/urls/guide You can use links like https://www.google.com/maps/search/?api=1&query=1200%20Pennsylvania...
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Difference between Eclipse Europa, Helios, Galileo

... settings from the old. I've "started over" my Eclipse setup so many times now, I'm totally fed up using it, to be honest. I must be doing something wrong. :-( – Ryan H. Dec 6 '11 at 18:25 ...
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How to add new line into txt file

... You could do it easily using File.AppendAllText("date.txt", DateTime.Now.ToString()); If you need newline File.AppendAllText("date.txt", DateTime.Now.ToString() + Environment.NewLine); Anyway if you need your code do this: TextWriter tw = new StreamWriter("date.txt", ...
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Hello World in Python [duplicate]

...print("Hello, World!") You are probably using Python 3.0, where print is now a function (hence the parenthesis) instead of a statement. share | improve this answer | follow...
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JavaScript and Threads

...ript Worker Threads Apart from from Gears there's nothing available right now, but there's plenty of talk about how to implement this so I guess watch this question as the answer will no doubt change in future. Here's the relevant documentation for Gears: WorkerPool API WHATWG has a Draft Recomme...
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Sample random rows in dataframe

... sample_frac) have been superseded by slice_sample, though they remain for now. – Matt_B Sep 4 at 2:50 add a comment  |  ...