The standard thread implementation on linux is pthreads and processes can
easily be created by issuing a fork function call. While I was studying
processes recently and reading the man pages for clone I found two important
pieces of information:
clone.There. Do I have your attention? With this post my intention is to finally figure out what this pair of instructions actually mean. I mean, they show up everywhere. To do this I'd like to deal with a simple C example.
int main(void)
{
for (int i = 0; i ...If you want to have binaries and libraries portable across linux systems, or even portable across locations on your filesystem, you need to know a bit about dynamic linking.
First read man ld.so, this will tell you about where libraries are looked up
when they are being searched for ...
Everyone should care about vectorization. It's relatively easy for the compiler to do on it's own compared to stuff like auto-parallelisation, and can yield high performance gains on certain parts of the code. The win can be anything from 2x to 8x, depending on what data type we ...
read moreI'm just about to finish reading the fantastic essay by Neal Stephanson entitled "In the Beginning was the Command Line" and I stumbled upon this quote:
read moreUnix is hard to learn. The process of learning it is one of multiple small epiphanies. Typically you are just on the verge ...
I'm trying out the syntax highlighting extension to markdown available in pelican. Here it goes
#include <vector>
int main()
{
std::vector c = { 1, 2, 3 };
for (auto&& e : c) {
e -= 1;
}
return c[2];
}
Now let's see how this looks.
read more