[masklinn]

Still not exactly great. I'd like to get a flamegraph view of the profile[0] or a chrome-style time series as it provides a much clearer high-level picture, but I'm not sure cProfile records enough information to do so (or that it stores threading informations in the profile, which would be necessary for time series)

[0] http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html

[andor]

I added flamegraph to plop, if you're interested:

https://github.com/andreasf/plop/tree/flamegraph_support

Here's an example: http://zentrale1.com/~an/nachher5.svg

[ehvatum]

This thread changed my life.

[andor]

Few more tips for successful Python profiling:

* By default, the ITIMER signals used by the profiler interrupt syscalls. Disable that by adding the following in plop.Collector.__init__() after the call to signal.signal():

  signal.siginterrupt(sig, False)

* Try all ITIMER modes, e.g. by changing the default in plop.Collector.__init__()