Matti Picus

xref #485. As a PyPy dev, we have dropped support for PyPy3.6, and are going to drop PyPy3.7 soon. A known issue is that coverage, which on CPython runs as...

No, that is indeed strange. We expect tests to run 2x slower since that is roughly the speed of our interpreter vs. CPython (without the JIT) and tests typically do...

~On master, I get a failure when trying to read from `/tmp/pytest-of-matti/pytest-4/test_durations0/report.html` which does not exist. I see the test run is not pulling in the pytest-html plugin, even though...

I did not properly install pytest-html. Now I get a different error, the html does not capture the log: ``` html = '\n\n \n \n \ report.html\n

On ubuntu 20.04, when I run with PyPy 3.8 I get 20 seconds, with CPython 3.8 10s. This is the 2x I would expect. Running CPython with coverage does not...

I missed the 4x on macOS. Now that we see the problem we can try to work on it. Very strange that macOS and windows are that much slower. @cfbloz.

Could I add something like [this](https://github.com/napari/napari/pull/4518) to the test setup to upload `--durations` timings as an artifact, and then compare them via https://carreau.github.io/pytest-json-report-viewer/ ?

The protocol is covered in the PR to implement this, as documented [here](https://github.com/dmlc/dlpack/pull/101/files#diff-851e948c4827ccec1de9b174d011fc92676f2e195ac863c4a055d9cc508575f4R18) (summarized below). As I understand the proposal, if the producer has no `__dlpack_info__`, then by definition it...

> They are communicating by pointer which erases the type (e.g. PackedFunc in TVM-land passes DLTensor* as void*) Can you point to this code? At some point the producer must...

I like A2 as well.