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Context switches much slower in new linux kernels
...able
plain old Unix signals
I had to add
#include <stdint.h>
in order to compile, which I did with this command
g++ -O3 -o condvar-perf condvar-perf.cpp -lpthread -lrt
On kernel 2.6.32
$ ./condvar-perf 1000000
NPTL
mutex elapsed: 29085 us; per iteration: 29 ns / 9...
Can I write a CSS selector selecting elements NOT having a certain class or attribute?
...on selector.
You can use :not to exclude any subset of matched elements, ordered as you would normal CSS selectors.
Simple example: excluding by class
div:not(.class)
Would select all div elements without the class .class
div:not(.class) {
color: red;
}
<div>Make me red!</d...
Android multiple email attachments using Intent
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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How do I set $PATH such that `ssh user@host command` works?
...tive mode checks for these files, and uses the first existing one, in this order:
~/.bash_profile
~/.bash_login
~/.profile
So if you have an ~/.bash_profile, then whatever changes you do to ~/.profile will be left unseen.
Bash in non-interactive mode sometimes reads the file ~/.bashrc (which is...
Hudson or Teamcity for continuous integration? [closed]
...wards compatibility. Plugins don't generally require the latest Hudson in order to work. In fact, 130 plugins available now are built against Hudson versions that are over a year old. If you're still concerned, there's an automated rollback plugin in the works.. ;)
– Christo...
window.onload vs $(document).ready()
... you are asking, it's based on how you structure your page, including what order you place the js files. Here is a link that goes into more detail: ablogaboutcode.com/2011/06/14/… HTH, James
– James Drinkard
Aug 12 '15 at 14:34
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How to overload functions in javascript?
...ault value for an argument if it is not passed.
Named arguments - Argument order becomes irrelevant and you just name which arguments you want to pass to the function.
Below is a section on each of these categories of argument handling.
Variable Arguments
Because javascript has no type checking ...
Write a program to find 100 largest numbers out of an array of 1 billion numbers
...ion (the first k numbers are automatically added to the queue). We can use order statistics (see link) to calculate this probability. For example, lets assume the numbers were randomly selected uniformly from {0, 1}, the expected value of (i-K)th number (out of i numbers) is (i-k)/i, and chance of a...
Android Log.v(), Log.d(), Log.i(), Log.w(), Log.e() - When to use each one?
...
Let's go in reverse order:
Log.e: This is for when bad stuff happens. Use this tag in places like inside a catch statement. You know that an error has occurred and therefore you're logging an error.
Log.w: Use this when you suspect something s...
How to resize images proportionally / keeping the aspect ratio?
...: someOtherHeight }); ? this can be useful to avoid issues with parameters order.
– Adrien Be
Nov 4 '14 at 8:07
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