Windows Task Manager equivalent for OS X, showing more details than Activity Monitor?

"I provided an answer to a similar question on Stack Overflow, and I find that using htop—a tool commonly used in the Linux world—is far better & clearer than the standard tools Mac OS X uses. My fave use is to hit the T key while it is running to view processes in tree view (see screenshot). Shows you what processes are co-dependent on other processes.

And if you have Xcode and related tools such as git installed on your system and you want to install from a source repository—such as max-horvath’s htop GitHub repository—just follow these steps.

First clone the sourcecode from max-horvath’s htop-osx GitHub repository:

git clone git@github.com:max-horvath/htop-osx.git

Now go into the repository directory:

cd htop-osx

Run libtoolize and automake -f like this:

libtoolize && automake -f

Then run autogen.sh:

./autogen.sh

Run this configure command:

./configure

Once the configure process completes, run make:

make

Finally install it by running sudo make install:

sudo make install"