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Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?

... This clock wraps around once it tops out (this typically happens after ~2^32 ticks, which is not very long for a 1 MHz clock). man clock says that since glibc 2.18 it is implemented with clock_gettime(CLOCK_PROCESS_CPUTIME_ID, ...) in Linux. clock_gettime(CLOCK_MONOTONIC, ...) provides nanosecond ...
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How to determine if a number is a prime with regex?

...he number supplied. So the string has three characters if and only if n == 3. .? The first part of the regex says, "any character, zero or one times". So basically, is there zero or one character-- or, per what I mentioned above, n == 0 || n == 1. If we have the match, then return the negation of...
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What is the usefulness of PUT and DELETE HTTP request methods?

...source with that URI … For the full specification visit: http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html Since current browsers unfortunately do not support any other verbs than POST and GET in HTML forms, you usually cannot utilize HTTP to it's full extent with them (you can still hij...
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How do I turn off “Automatically Switch to Debug Perspective” mode in eclipse?

... answered Mar 25 '10 at 13:21 skaffmanskaffman 374k9292 gold badges779779 silver badges744744 bronze badges ...
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SQL, Postgres OIDs, What are they and why are they useful?

... | edited Jul 28 at 15:36 jiwopene 1,29166 silver badges2121 bronze badges answered Apr 11 '11 at 20:...
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What does the “-U” option stand for in pip install -U

... | edited May 13 '18 at 10:40 answered Sep 15 '12 at 6:50 ...
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Sourcetree - undo unpushed commits

... 351 Right click on the commit you like to reset to (not the one you like to delete!) Select "Rese...
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Why does Git tell me “No such remote 'origin'” when I try to push to origin?

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What does FrameLayout do?

... answered Jan 27 '17 at 6:32 Ojonugwa Jude OchalifuOjonugwa Jude Ochalifu 22.8k2525 gold badges9797 silver badges118118 bronze badges ...
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Suppress Scientific Notation in Numpy When Creating Array From Nested List

... | edited Nov 6 '17 at 13:38 Free Url 1,02811 gold badge1010 silver badges2323 bronze badges answered ...