Profiling C++ applications on Ubuntu

Sometimes it is necessary to check the performance of applications at function level, in order to see what are the functions that consume the most time during program execution. I'm going to go through two methods of profiling and exploring the results in a graphical manner.

Configuring ssh keys for git access on Ubuntu

To be able to connect to a git repository with ssh access (ssh://) use the following steps:

• copy your private key file to ~/.ssh
• create (if it doesn't exist) the file ~/.ssh/config and add the following content:

Host my_githost.com
    HostName my_githost.com
    User my_username
    IdentityFile ~/.ssh/my_private_key_file

• change the permissions to the private key file:

chmod 400 ~/.ssh/my_private_key_file

Now you can clone your repository.

Installing Android Studio on Ubuntu 14.04 LTS, Trusty Tahr 64 bit

Installing Android Studio on Ubuntu 14.04 64 bit can be quite tricky. Here's a list of issues I encountered while trying to get it up and running.

First get Android Studio from the official location here, and install it using the guidelines for your specific OS.