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Thread context switch Vs. process context switch
...the registers is the largest fixed cost of performing a context switch.
A more fuzzy cost is that a context switch messes with the processors cacheing mechanisms. Basically, when you context switch, all of the memory addresses that the processor "remembers" in its cache effectively become useless. ...
Error TF30063: You are not authorized to access … \DefaultCollection
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Save Screen (program) output to a file
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Just googled a bit more.. Here's answer for my repvious comment - stackoverflow.com/questions/4807474/… Ctrl+A and : to get to command mode, then hardcopy -h <filename> in case somebody elsee will need this.
–...
Regex for password must contain at least eight characters, at least one number and both lower and up
... password must always have the exact same order. what of something more generic that can start with upper case or special characters.
– Ichinga Samuel
Jun 15 at 20:01
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CSS Div stretch 100% page height
...stead of min-height:100%.
EDIT 2: Added extra comments to CSS. Added some more instructions above.
The CSS:
html{
min-height:100%;/* make sure it is at least as tall as the viewport */
position:relative;
}
body{
height:100%; /* force the BODY element to match the height of the HTML el...
Removing item from vector, while in C++11 range 'for' loop?
...ins if you need to modify the container as you go along, access an element more than once, or otherwise iterate in a non-linear fashion through the container.
For example:
auto i = std::begin(inv);
while (i != std::end(inv)) {
// Do some stuff
if (blah)
i = inv.erase(i);
else
...
Bomb dropping algorithm
...inside layer 1), can we reduce the effort of later bombing away layer 2 by more than
X? In other words, we have to prove we can be greedy in reducing the outer
perimeter.
But, we do know we can be greedy. Because no bomb in layer 2 can ever be more
efficient in reducing layer 2 to 0 than a str...
What are the best practices to follow when declaring an array in Javascript?
...ay with just one pre-specified number element in it!
Using [] is actually more efficient, and safer too! It's possible to overwrite the Array constructor and make it do odd things, but you can't overwrite the behaviour of [].
Personally, I always use the [] syntax, and similarly always use {} syn...
Revert a range of commits in git
...it1.7.2+: see "Rollback to an old commit using revert multiple times." for more details.
The current git revert man page is only for the current Git version (1.7.4+).
As the OP Alex Spurling reports in the comments:
Upgrading to 1.7.4 works fine.
To answer my own question, this is the syntax I w...
How JavaScript closures are garbage collected
...eachable and both work. Either you set some=null when you don't need it anymore, or you set window.f_ = null; and it will be gone.
Update
I have tried it in Chrome 30, FF25, Opera 12 and IE10 on Windows.
The standard doesn't say anything about garbage collection, but gives some clues of what sho...