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How do cache lines work?

...he L3 or L2 cache but not for the RAM where it is more like 90ns. What you mean is the burst time - the time to access the next quad-word in burst mode (which is actually the correct answer) – Martin Kersten Aug 30 '16 at 9:40 ...
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Extract first item of each sublist

...g the array: %timeit list(np.array(lst).T[0]) 4.9 µs ± 163 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each) Fully native using list comprehension (as explained by @alecxe): %timeit [item[0] for item in lst] 379 ns ± 23.1 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each...
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Setting DIV width and height in JavaScript

...addition, when your Web designer wants to change the definition of what it means to be wide, he or she does not need to go poking around in your beautifully maintained JavaScript code. Your JavaScript code remains untouched, yet the theme of your application can be easily customized. This technique...
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How to overwrite styling in Twitter Bootstrap

... It doesn't matter, for example '.abc.xyz' means, there is an element with class 'abc' and 'xyz' - it will still take it as a single element with a class. Thus, 10 points. same goes for an ID. – kaizer1v May 25 '15 at 15:53 ...
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How to differentiate between time to live and time to idle in ehcache

...n't been requested for 4 seconds.", when you say invalidate - what does it mean? Does it remove it from heap? If the object is removed from cache, then I am confused about what is the use of timeToLive parameter at all. When we did the POC, we are seeing that data is fetched from source after time...
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MySQL Fire Trigger for both Insert and Update

... What's IN table_row_id VARCHAR(255) in this case? I mean how are you defining which row is going to be inserted or updated? – VaTo Feb 25 '16 at 1:04 ad...
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Use Font Awesome Icon in Placeholder

... where did you get  value? I mean how you go from icon-search to &#xF002? – Ігар Цімошка Aug 13 '15 at 8:58 2 ...
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jQuery Ajax POST example with PHP

...borting the previous request, because it's an asynchronous request, meaning once it's sent it's out there. But in case you want to abort it you can do it by abort(). jQuery Ajax methods return an XMLHttpRequest object, so you can just use abort(). */ ajaxRequest= $...
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Combining multiple commits before pushing in Git [duplicate]

... By origin/master, do you mean <upstream-branch>? If the upstream branch is configured, is it implicit or must I still specify it? – Acumenus Apr 22 '14 at 16:04 ...
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Using “Object.create” instead of “new”

... 1. Thanks for the pointer to differential inheritance. 2. Does this mean no more constructors? I need to remember to set 'id' to MY_GLOBAL.nextId() every time I create a user? – Graham King Apr 25 '10 at 22:02 ...