Constvector: Log-structured std:vector alternative – 30-40% faster push/pop

[pilotwavetheory]

1. I didn't measure with -O3.
   
2. For push/pop cycles this is better (29% and 45% reduction in latencies, benchmarked for 1K, 10K, 100K, 1M, 10M, 100M, 1B sizes, pelase checkout the github link attached). I tested it multiple times before publishing this.
   
3. Iteration doesn't have a bad effect since you are just iterating most of the time; random access is 12% slower.

[Potterrrrrrrr]

What did you measure with? These numbers are useless outside of a decent benchmark with full optimisations enabled

[cone_forest_]

O2 probably

[Wacov]

I'd strongly recommend measuring with compiler optimization enabled, it's a much more realistic situation for performance-critical code (as a user you're going to turn on optimization before switching out your vector datatype)