2 ms·

My Java is rusty, does Java provide things like placement new that make using arenas ergonomic?

• chii 4y ago
  no, you cannot control allocation via regular means. What i meant is that you make pooling in java, and that effectively makes it work like an arena allocator (in that you end up setting a bit/boolean flag to allocate/deallocate an object). But the pooling can be constrained to just one portion of your app - the hot loop or the bit that needs the low latency. The remaining code - loading resources at startup for example - can just be regular old java that's easy to write.
  • chopin 4y ago
    Pooled JDBC connections work this way in Java.