@musllibc @RichFelker Protecting the setjmp registers and internal function pointers (vdso, atexit, atfork) is one of the missing pieces.
@CopperheadSec Awful space and time overhead is going to be around the 2-20 kB range. Syscall for each alloc/free.
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@RichFelker Not sure what you mean. The zone-based design results in the overhead per allocation being measured in bits, not bytes. -
@RichFelker It's essentially the same design as jemalloc but jemalloc uses 2MiB aligned regions with headers rather than pages + hash table. -
@RichFelker The caching mechanism used in OpenBSD for allocations larger than the page size very naive, sure. Small allocations work well.
End of conversation
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