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Viladoman / CompileScore

Tools for profiling and visualizing C++ build times.
MIT License
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Compile Score Timeline has unrelated files listed #25

Open missmah opened 2 years ago

missmah commented 2 years ago

image

The files listed in the timeline aren't related to or included by each other -- it seems like maybe the database got corrupted, or somehow a pointer to a data structure is pointing to the wrong element.

Here, we see one cpp file ostensibly including a couple of totally separate CPP files (which in reality are not included by each other), and eventually building some bullet code -- which, again, is unrelated to everything above it in this hierarchy.

missmah commented 2 years ago

More information about this bug. I restarted CompileScore and reloaded the file, and the data I'm seeing is different (and consistent/sane again).

I had been clicking Actions -> Reload previously, which worked like a charm on Friday night -- but it seems to have failed me just now today.

Viladoman commented 2 years ago

This is really concerning! If I understand properly, same recorded data looked wrong and then right again? meaning it is an issue with the viewer and not the .scor generator?

missmah commented 2 years ago

Yeah, seems to be a viewer issue, and it seemed like it was showing a garbage interpretation of the data after Reload, and then I quit and re-launched, and everything looked correct. But Reload had worked fine hundreds of times before that.

I did put the machine to sleep over the weekend; but, it also has ECC memory, so I wouldn't expect it to be due to a cosmic ray style flipped bit...

Viladoman commented 2 years ago

I am thinking that maybe the timeline logic did not properly clear the previous tree and merged 2 different timelines together. I think cosmic rays is less probable than a human error in this case :D. I will have a look. Thanks for letting me know.