Ece 459 Lecture 27 Profiling

Finally, we're ready to talk about

The first tool we're going to take a look at is perf.

The next tool we're going to talk about is a visual one, the Flamegraph!

We can use the

Causal

We will start our discussion of

You can find the

While it's tempting to just assume that the CPU is the bottleneck device -- the one limiting the maximum speedup of the application ...

A quick introduction to a different kind of

Before we just jump to the conclusion that it's CPU, let's examine what else it could be and how we would know. But also with ...

A worked example of the

We'll talk about a few different

We'll learn about Massif, the heap

Profilers are useful tools, but they gather data and tell you a story. Maybe the story is right, and maybe there is reasonable doubt.

The last of the Valgrind tools we will cover is the sadly non-Norse-named Cachegrind, which tells you about cache misses and ...

Continuing the discussion of observing the software in question by looking at some aggregate measures and then dashboards as ...