<p>I'm looking for a profiler in order to find the bottleneck in my C++ code. I'd like to find a free, non-intrusive, and good profiling tool. I'm a game developer, and I use PIX for Xbox&nbsp;360 and found it very good, but it's not free. I know the Intel <a href="https://en.wikipedia.org/wiki/VTune" rel="noreferrer">VTune</a>, but it's not free either.</p>

CodeXL
has now superseded the End Of Line'd
AMD Code Analyst
and both are free, but not as advanced as VTune.
There's also
Sleepy
, which is very simple, but does the job in many cases.
Note:
All three of the tools above are unmaintained since several years.