x/tools/gopls: high memory usage with VS Code remote dev in github.com/cockroachdb/cockroach

[stamblerre]

Report on Slack:

huh, has anyone seen gopls taking 25+ 35 GiB of ram / getting OOMKilled?
strangely, it seems fine run locally on my laptop, where I only have 16gb total, but when I use VSCode’s remote dev feature, checking out the exact same codebase, but on a much bigger and beefier cloud VM, it gets OOMkilled a couple times a day with reported vm of 35GB. (edited)

Profiles:
gopls.30591-26GiB-goroutines.txt
gopls.30591-26GiB-heap.pb.gz

Local changes: https://github.com/cockroachdb/cockroach/compare/master...dt:gopls-oom?expand=1

/cc @heschik

[knz]

This issue has been addressed: #38080

which seems to reduce RAM usage considerably.

[heschik]

Great!