alt Hacker Newsrust-analyzer taking 2GiB of RAM per instance definitely hurts.
And I agree that efforts to reduce this are noble and warranted, but I worry about what doesn’t happen because of those optimisations. The rust tooling is just so-so good (and a better argument for the language than memory safety imo), so I support more efforts to be ergonomic over memory optimisation.
Even though rust-analyzer is often the largest memory process on my machine. (and I only have 24GiB of RAM).
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It wasn't long ago RA was consuming over 24GB for my main workspace.
They've been working on memory use and it dropped to ~7.5GB for a while but the last couple of releases have been nudging up again - currently 9.4GB without major change in the workspace.
It becomes an obstacle on a 64GB machine given I work with multiple workspaces open e.g. for the crates I am using, example projects, other branches etc. so I have to start/stop it when I just want basic type-info/navigation. Trialling a different editor alongside my current one becomes prohibitive when it's going to want another 10GB for it's own RA instance.
99% of the code isn't changing so disk caching does seem like a no-brainer like back in the 90s with intellisense .ncb files... just without the regular corruptions though!
> rust-analyzer taking 2GiB of RAM per instance definitely hurts.
It compresses well though on average, if you have something like zram (I think windows/mac do something similar). When you get multiple projects open each with their own rust analyzer though, it starts to bite
I would think there has to be some decent middle ground like storing some structures on disk mmap'd and letting the kernel handle back pressure and caching
I wish it only took 2gb on my project. It regularly goes over 8gb, I started running it in a cgroup limited to 8gb so it gets killed when it goes over instead of causing problems for the rest of my system. Hits it all the time. I have 64 GB of ram, but my project uses docker to monitor games servers which are also ram hungry so it's still a huge problem when testing. RA acts like they expect to be the only thing running on your pc.