Michael Kipper

> [EDIT] On the first read, I missed "small worker counts". Do we expect heterogenous setups (in terms of worker counts)? I don't think we can assume anything, but for...

This was driven by the comment referenced in the description, which was authored by @dalehamel in https://github.com/Shopify/shopify/commit/35045a4ab3833c43d36f77b1aac4aadbba152646. Maybe he can chime in? Since it's 2+ years old, it predates our...

> My big concern with this implementation is the number of shared memory segments that will be created... For Shopify production, I could see this amounting to (tens of?) thousands...

@csfrancis has some legitimate concerns about the number of shared memory segments this PR would create. `SHMMNI` is 4,096 on Linux so with our LRU `max_size` of 500, we'd need...

@csfrancis was concerned last week that the host-based circuits PR would require too many shared memory segments. The default on Linux is 4,096 and we were going to be using...

> Have you had any success with semsim? No, I don't think this works at all... `SI_SEM_CONFIGURED_TICKETS` is basically a bookkeeping value. The real value we want to modify is...