5 ms·

Yes, this is precisely how jemalloc works.

• vvanders 10y ago
  Does jemalloc allow you to report telemetry and feed that back into the initial pool sizes? That's what makes the gamedev oriented allocators interesting. FWIW a "Frame allocator" was always a block of memory where malloc returned pointer into the block and advanced the pointer. At the end of rendering a frame you just reset the pointer to the start of the block. The downside is you need to guarantee that nothing in has a lifetime longer than a frame, something Rust should be good at :). I think what the GP is referring to is a pooling allocator that pools similar sized allocations.
  • Jweb_Guru 10y ago
    > Does jemalloc allow you to report telemetry and feed that back into the initial pool sizes? That's what makes the gamedev oriented allocators interesting. Not AFAIK. There are a lot of optimizations it's quite difficult to do with dynamic pool sizes, which aren't worthwhile in the general case.
• rayiner 10y ago
  And OS X's magazine allocator, in addition to probably dozens of others. Segregated-fit allocators are probably the dominant method.