alt Hacker NewsFor those problems arena allocators tend to perform even better.
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quotemstr • last Sunday at 4:17 PM
Not for all allocation patterns. It's hard to beat bump pointer allocation and escape analysis in general.
For those problems arena allocators tend to perform even better.
Not for all allocation patterns. It's hard to beat bump pointer allocation and escape analysis in general.
Yeah, but if you actually need to retain a live subgraph of the allocated heap, the arena can't help you. So you make an arena allocator that only frees its slab after moving out the reachable set to a new compacted arena. Congratulations, you've implemented a Cheney-style compacting GC!