[PATCH v2 0/7] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory

[Uladzislau Rezki]

On Tue, May 19, 2026 at 01:17:38PM -0700, Andrew Morton wrote:
> On Thu, 14 May 2026 17:41:01 +0800 Wen Jiang <jiangwenxiaomi at gmail.com> wrote:
> 
> > This patchset accelerates ioremap, vmalloc, and vmap when the memory
> > is physically fully or partially contiguous.
> > 
> > ...
> > 
> > On the RK3588 8-core ARM64 SoC, with tasks pinned to a little core and
> > the performance CPUfreq policy enabled, benchmark results:
> > 
> > * ioremap(1 MB): 1.35× faster (3407 ns -> 2526 ns)
> > * vmalloc(1 MB) mapping time (excluding allocation) with
> >   VM_ALLOW_HUGE_VMAP: 1.42× faster (5.00 us -> 3.53us)
> > * vmap(100MB) with order-8 pages: 8.3× faster (1235 us -> 149 us)
> 
> Nice.
> 
> AI review found a bunch of things to ask about:
> 	https://sashiko.dev/#/patchset/20260514094108.2016201-1-jiangwen6@xiaomi.com
> 
> It doesn't appear that you'll be getting any more review on this
> series, so please check the above questions and resend?
> 
Actually i keep an eye on it and i have done some stability testing.
So, just need some time. Fixing AI sounds good.

--
Uladzislau Rezki