Optim: inline segment storage and strip all ConcurrentQueue logic My previous estimate of 10% degradation was off - it actually was 6ms vs 3.5ms. With these changes I consistently get 4ms for AllocDeallocMTShortLived(32,False) perf test - 15% loss, still acceptable Tests: unit tests + AllocDeallocMTShortLived(32,False) perf test