On Thu, Mar 28, 2024 at 03:51:09PM +0900, Damien Le Moal wrote: > I am all for not micro-optimizing the free path right now. > I am not so sure about the mempool being simpler... And I do see some > improvements in perf for SMR HDDs with the free list. Could be noise though but > it feels a little more solid perf-wise. I have not seen any benefit for faster > devices with the free list though... > > If you prefer the mempool, I can go back to using it though, not a big deal. A capped free list + dynamic allocation beyond it is exactly what the mempool is, so reimplementing seems a bit silly.