When I said main memory I meant failing to get a cache hit. If you’re hitting the allocator (slow!) then odds are pretty good those bytes aren’t fresh in the c

When I said main memory I meant failing to get a cache hit. If you’re hitting the allocator (slow!) then odds are pretty good those bytes aren’t fresh in the cache. They could be if you just read them and then freed them and then the allocator handed them right back. But that’s probably not a good pattern either. Another form of this pattern is the small string optimization. It’s exceptionally common. https://blogs.msmvps.com/gdicanio/2016/11/17/the-small-string-optimization/ https://blogs.msmvps.com/gdicanio/2016/11/17/the-small-strin...