Re: [PATCH 4/8] io_uring/io-wq: cache work->flags in variable

[Max Kellermann]

On Thu, Jan 30, 2025 at 12:41 AM Pavel Begunkov <asml.silence@xxxxxxxxx> wrote:
> Ok, then it's an architectural problem and needs more serious
> reengineering, e.g. of how work items are stored and grabbed

Rough unpolished idea: I was thinking about having multiple work
lists, each with its own spinlock (separate cache line), and each
io-wq thread only uses one of them, while the submitter round-robins
through the lists.