Sourcetrail VS gperftools

I wish something existed in this space. I used Coati Software's Sourcetrail for a couple of years. Unfortunately it was discontinued. It was a wonderful piece of software that indexed a code repository, and exposed an interface to explore it interactively. At least for me, it significantly improved the understanding and legibility of code.

The code is in an archived state (https://github.com/CoatiSoftware/Sourcetrail). Searching for the software on Google shows some screenshots.

I think it might make large scale code visualization in a similar way to how SourceTrail does it more feasible: https://github.com/CoatiSoftware/Sourcetrail

Sourcetrail: Free and open-source cross-platform source explorer https://github.com/CoatiSoftware/Sourcetrail

Yep souecetrail https://github.com/CoatiSoftware/Sourcetrail

I've used https://github.com/CoatiSoftware/Sourcetrail in the past for some bits of the legacy code project I'm on. I also use vim and cscope for day to day navigation but it's harder to get a big picture with those alone.

Sourcetrail?

Does it strive to do what Sourcetrail used to ?

You could always try using Sourcetrail. Unfortunately the open source project is now archived but it should still help you get insights into your code.

For profiling you are right clang has no -pg that works. But there are options, since clang supports PGO the fprofile flags could be what you need. they will generated a profraw file for you. There is also gperf tools which work for more than just linux. https://github.com/gperftools/gperftools

Because we couldn't identify the issue using the results we got from Callgrind, we reached for another profiler, gperftools. It's a sampling profiler and therefor it has a smaller impact on the application's performance in exchange for less accurate call statistics. After filtering out the unimportant parts and visualizing the rest with pprof, it was evident that something strange was happening with the send function. It took only 71 milliseconds with the previous implementation and more than 900 milliseconds with the new implementation of our Bolt server. It was very suspicious, but based on Callgrind, its cost was almost the same as before. We were confused as the two results seemed to conflict with each other.

gprftools (https://github.com/gperftools/gperftools) can be easily plugged in using LD_PRELOAD and signal, and has nice go implemented visualization tool https://github.com/google/pprof.

Google's tcmalloc