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Using @property versus getters and setters
...
The short answer is: properties wins hands down. Always.
There is sometimes a need for getters and setters, but even then, I would "hide" them to the outside world. There are plenty of ways to do this in Python (getattr, setattr, __getattribute__, etc..., ...
Node.js vs .Net performance
... have any hard numbers to prove one way or another, but I think node would win the LOAD competition for the typical web app. A highly optimized (100% async) .NET app might give the equivalent node.js app a run for it's money, but if you took an average of all the .NET and all the node apps out there...
Multiple github accounts on the same computer?
...-to-work-with-github-and-multiple-accounts--net-22574
Generating SSH keys (Win/msysgit)
https://help.github.com/articles/generating-an-ssh-key/
Also, if you're working with multiple repositories using different personas, you need to make sure that your individual repositories have the user setting...
How are virtual functions and vtable implemented?
...ect(*(void **)x,8,PROT_READ|PROT_WRITE|PROT_EXEC);
// Or VirtualProtect on win32; this part's very OS-specific
(*(int (***)(A *)x)[0] = f3;
// Now C::f1() returns 0 (remember we made x into a C above)
// so x->f1() and z->f1() both return 0
The latter is rather likely to make virus-checkers ...
What's “P=NP?”, and why is it such a famous question? [closed]
...NP or P!=NP. If anyone provides a proof for either conjecture, they will win US $1 million.
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What do 'statically linked' and 'dynamically linked' mean?
... form an executable.
The distinction is made for, among other things, allowing third party libraries to be included in your executable without you seeing their source code (such as libraries for database access, network communications and graphical user interfaces), or for compiling code in differe...
What are the differences between Autotools, Cmake and Scons?
... a painful experience to get an Autotools setup to build usable code for a Windows system. (While I've little use for Windows, it is a serious concern if you're developing purportedly cross-platform code.)
When it breaks, you're going to spend HOURS chasing your tail trying to sort out the things t...
What are the effects of exceptions on performance in Java?
... this already happens in the try statement. The throw statement needs to unwind the stack and restore the values of all registers (and possible other values in the VM). So try and throw are equally slow, and that is pretty slow, however if no exception is thrown, exiting the try block takes no time ...
How many GCC optimization levels are there?
... further optimizations
designed to reduce code size.
-Os disables the following optimization flags: -falign-functions -falign-jumps -falign-loops -falign-labels -freorder-blocks -freorder-blocks-and-partition -fprefetch-loop-arrays -ftree-vect-loop-version)
There may also be platform specific opti...
Performance optimization strategies of last resort [closed]
...t's hard to sample, so I give it 10 times as much work to do, but the following times are based on the original workload.
More diagnosis reveals that it is spending time in queue-management. In-lining these reduces the time to 7 seconds.
Now a big time-taker is the diagnostic printing I had been d...