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Is calculating an MD5 hash less CPU intensive than SHA family functions?
...my Intel x86 (Core2 Quad Q6600, 2.4 GHz, using one core), I get this in 32-bit mode:
MD5 411
SHA-1 218
SHA-256 118
SHA-512 46
and this in 64-bit mode:
MD5 407
SHA-1 312
SHA-256 148
SHA-512 189
Figures are in megabytes per second, for a "long" message (this is what ...
Java SE 6 vs. JRE 1.6 vs. JDK 1.6 - What do these mean?
...://download.oracle.com/otn-pub/java/jdk/7/jdk-7-windows-x64.exe (for my 64-bit Windows 7 system)
You are now downloading (hopefully the latest) JDK for your system! :)
Keep in mind the above links are for reference purposes only, to show you the step by step method of what it takes to download the...
How do exceptions work (behind the scenes) in c++
...ion
{
public:
MyException() { }
~MyException() { }
};
void my_throwing_function(bool throwit)
{
if (throwit)
throw MyException();
}
void another_function();
void log(unsigned count);
void my_catching_function()
{
log(0);
try
{
log(1);
another_functi...
How to get a list of current open windows/process with Java?
Does any one know how do I get the current open windows or process of a local machine using Java?
14 Answers
...
Python os.path.join on Windows
...
Windows has a concept of current directory for each drive. Because of that, "c:sourcedir" means "sourcedir" inside the current C: directory, and you'll need to specify an absolute directory.
Any of these should work and giv...
GridLayout (not GridView) how to stretch all children evenly
...ails.
END UPDATE
There are limitations when using the GridLayout, the following quote is taken from the documentation.
"GridLayout does not provide support for the principle of weight, as
defined in weight. In general, it is not therefore possible to
configure a GridLayout to distribute exce...
What's the difference between the atomic and nonatomic attributes?
... Another fun one; on certain architectures (Can't remember which one), 64 bit values passed as an argument might be passed half in a register and half on the stack. atomic prevents cross-thread half-value reads. (That was a fun bug to track down.)
– bbum
No...
Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
...TRDIFF_T_SPECIFIER "%zd"
#else
// TODO figure out which to use.
#if NUMBITS == 32
#define JL_SIZE_T_SPECIFIER something_unsigned
#define JL_SSIZE_T_SPECIFIER something_signed
#define JL_PTRDIFF_T_SPECIFIER something_signed
#else
#define JL_SIZE_T_SPECIFIER something_big...
What is the difference between the kernel space and the user space?
...T instructions.
cannot do IO instructions like in and out, and thus have arbitrary hardware accesses.
Otherwise, for example, file permissions would be useless if any program could directly read from disk.
More precisely thanks to Michael Petch: it is actually possible for the OS to allow IO instr...
Nexus 7 not visible over USB via “adb devices” from Windows 7 x64
...ank you man, you saved the day. I think they could have hidden it a little bit more. Like some additional voice activation. Open sesame or something.
– Tibor Szasz
Jul 22 '14 at 18:43
...