Benjamin Werthmann

Results 18 comments of Benjamin Werthmann

> > I wrote a workaround that does not invoke netpoll at all, instead it just makes raw syscalls and throughput improved by 5x > > Just to make sure...

@aclements profile as requested. Taken with `go1.21.5` on a 128 core machine: ![image](https://github.com/golang/go/assets/3788743/5ace5c80-fd10-47ac-a6a4-8502e8d944f4)

@aclements here's a stack sample with the main func at the top: ![image](https://github.com/golang/go/assets/3788743/71ac9e8d-8558-46d1-8957-e3b665c849b0) profile from FlameScope: blanks on the left and right are when the profile stopped and started. ![image](https://github.com/golang/go/assets/3788743/86eabfe5-bb40-499f-ab58-f92f39649f7b)...

> I'd love to see where the `osq_lock` call is coming from to confirm the hypothesis. @aclements what are your thoughts on the profiles?

I might have some cycles this week to test my reproducer.

> This example converges Jetstream when `fly scale count 3`, or `fly scale count 5`. Technically it's possible to create a Jetstream SPOF. This requires the server to think it's...

This repo already enables Jetstream. The repo is somewhat broken currently. I have patches staged to fix this repo, this is the first patch in that series.