jsm
ModuleStore - use a compiled module as a high-performance key-value store
Package: module_store | Hex
Source: GitHub - juulSme/ModuleStore: Compiled-at-runtime modules as high-read-performance key-value stores in Elixir · GitHub
Docs: ModuleStore v0.0.1 — Documentation
I’ve created a small library that (mis)uses module (re)compilation to create very fast runtime storage. It performs extremely well for reads and extremely badly for writes, by design. The API is a simple key-value interface. It should be considered as being in a very early state, it’s not battle-tested at all at this point.
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wojtekmach
For some more prior art, also check out GitHub - discord/fastglobal: Fast no copy globals for Elixir & Erlang. · GitHub. But yeah, I believe persistent_term was designed to solve problems like these.
ltd
Is there a reason to not use the erlang builtin :persistent_term.
benwilson512
To be clear modules are also global. If you want a similarly ergonomic API you could just write a wrapper function around the persistent term lookup. As someone’s done a lot with compiled modules in Absinthe persistent term is just so much better.
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jsm
The benchmark file is included in the source under bench, maybe I mucked it up somehow? I deliberately tried to keep it simple though. 100 pairs for every type of storage, take only the 50th atom key as quickly as you can.
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