[kyrra]

Maybe I'm wrong here, but the number of open pull requests isn't a bad thing. If you start poking at them, you will see that people submit pull requests to have the full gRPC test suite run against their changes (which probably includes cross-platform tests). So maybe putting a pull request up is the only way to get Jenkins kicked off, which then means it is part of the standard flow when doing work on the project to test changes.

[ctiller]

I own about 15% of those PR's at any given time... and you're right: our Jenkins instance looks at open GitHub PR's, so to run all the tests somewhere, and to verify performance, we open a PR. Many of mine are lower priority things (or exploratory enhancements) and so they'll stay open for even a quarter at a time before it really makes sense to land them.