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Override Java System.currentTimeMillis for testing time sensitive code
...there a way, either in code or with JVM arguments, to override the current time, as presented via System.currentTimeMillis , other than manually changing the system clock on the host machine?
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Java - removing first character of a string
... created string.
This has a number of implications for performance. Each time you are 'modifying' a string, you are actually creating a new string with all the overhead implied (memory allocation and garbage collection). So if you want to make a series of modifications to a string and care only a...
Best way to get InnerXml of an XElement?
...esting and not what I expected, with the slowest methods being more than 3 times slower than the fastest.
The results ordered by fastest to slowest:
CreateReader - Instance Hunter (0.113 seconds)
Plain old System.Xml - Greg Hurlman (0.134 seconds)
Aggregate with string concatenation - Mike Powell...
Beyond Stack Sampling: C++ Profilers
...ty much hit a major road block as a windows programmer. I've been using AQTime, I've tried sleepy, shiny, and very sleepy, and as we speak, VTune is installing. I've tried to use the VS2008 profiler, and it's been positively punishing as well as often insensible. I've used the random pause techni...
Is there a JavaScript / jQuery DOM change listener?
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For a long time, DOM3 mutation events were the best available solution, but they have been deprecated for performance reasons. DOM4 Mutation Observers are the replacement for deprecated DOM3 mutation events. They are currently implemen...
How to recover a dropped stash in Git?
...u can use this one-liner to get the list of dangling commits by increasing time: git fsck --no-reflog | awk '/dangling commit/ {print $3}' | xargs -L 1 git --no-pager show -s --format="%ci %H" | sort the last entry is probably the one you want to stash apply.
– ris8_allo_zen0
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What does the question mark operator mean in Ruby?
...i32 - Yeah I agree it's nice to name functions like that, I use is all the time. This might be super confusing for someone coming from Swift since the question mark there is used for nullable : )
– Jason
Dec 29 '15 at 19:51
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Should I use an exception specifier in C++?
...nteed to be unwound here and dtors run */ { throw; /* pass it on to the runtime */ }
– Logan Capaldo
Mar 21 '10 at 21:00
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Spinlock versus Semaphore
...rocesses, too.
A lock works for mutual exclusion, that is one thread at a time can acquire the lock and proceed with a "critical section" of code. Usually, this means code that modifies some data shared by several threads.
A semaphore has a counter and will allow itself being acquired by one or sev...
How to set MSDN to be always in English
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But you need to do this every time, are there settings which always apply? maybe with an microsoft account?
– Jan
Feb 19 '16 at 7:18
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