Perf: use orx FixedVec #48
Description
Yes, Fixed in terms of fixed capacity https://docs.rs/orx-concurrent-vec/latest/orx_concurrent_vec/struct.FixedVec.html
The number of measurements will be at most batch size (or a few over those) so we could preallocate the required capacity instead of having the ConcurrentVec grow
Originally posted by @Karrq in #47 (comment)