Re: [PATCHv4 00/12] dmapool enhancements

From: Andrew Morton
Date: Thu Jan 26 2023 - 17:22:17 EST


On Thu, 26 Jan 2023 13:51:13 -0800 Keith Busch <kbusch@xxxxxxxx> wrote:

> Time spent in dma_pool alloc/free increases linearly with the number of
> pages backing the pool. We can reduce this to constant time with minor
> changes to how free pages are tracked.

Do we have any performance testing results for realistic workloads?