Re: [PATCH 1/4] Introducing qpw_lock() and per-cpu queue & flush work

[Marcelo Tosatti]

On Fri, Feb 06, 2026 at 11:34:31AM -0300, Marcelo Tosatti wrote:
> Some places in the kernel implement a parallel programming strategy
> consisting on local_locks() for most of the work, and some rare remote
> operations are scheduled on target cpu. This keeps cache bouncing low since
> cacheline tends to be mostly local, and avoids the cost of locks in non-RT
> kernels, even though the very few remote operations will be expensive due
> to scheduling overhead.

Forgot to mention: patchset is against Vlastimil's slab/next tree.