jeanGeorge
Hi to everyone!
I am looking for some Elixir benchmarks that use structs. I would appreciate it if you could share some with me.
Why? I’m working on a project (my undergraduate thesis) whose goal is to improve the performance of the map lookup operation in BEAM. Now, I’m at a stage where I need to perform tests to analyze the behavior of the current BEAM implementation when using Elixir structs.
Where Next?
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mat-hek
In Membrane, we use nested structs and (usually small) maps for element state, which is basically a GenServer state. There are rather no heavy loops over it, but we figured out that access to structs impacts performance significantly. So we replaced Elixir’s Access by macros that construct pattern matches in the compile time. That turned out to provide significant speedup in some of our benchmarks. Not sure if that’s what you’re looking for, but I guess speeding up structs/maps themselves could give Membrane another boost.
mat-hek
It’s been some time, but the benchmark we had wasn’t straightforward to run, so I made another one: membrane_benchmarks/core_beamchmark at master · membraneframework-labs/membrane_benchmarks · GitHub
Hope it’s useful
al2o3cr
Here’s some prior discussion that seems like a good starting point:
A big change worth learning about for this specific case (Elixir structs) is the
new_map_litmachinery that landed in OTP 21:https://github.com/erlang/otp/pull/1498