From: Andrew Morton <akpm@linux-foundation.org>
To: Wen Jiang <jiangwenxiaomi@gmail.com>
Cc: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org,
catalin.marinas@arm.com, will@kernel.org, urezki@gmail.com,
baohua@kernel.org, Xueyuan.chen21@gmail.com, dev.jain@arm.com,
rppt@kernel.org, david@kernel.org, ryan.roberts@arm.com,
anshuman.khandual@arm.com, ajd@linux.ibm.com,
linux-kernel@vger.kernel.org, Wen Jiang <jiangwen6@xiaomi.com>
Subject: Re: [PATCH v2 0/7] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory
Date: Tue, 19 May 2026 13:17:38 -0700 [thread overview]
Message-ID: <20260519131738.11a78ba88e1be28ba5cb26eb@linux-foundation.org> (raw)
In-Reply-To: <20260514094108.2016201-1-jiangwen6@xiaomi.com>
On Thu, 14 May 2026 17:41:01 +0800 Wen Jiang <jiangwenxiaomi@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?
next prev parent reply other threads:[~2026-05-19 20:17 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-14 9:41 Wen Jiang
2026-05-14 9:41 ` [PATCH v2 1/7] arm64/hugetlb: Extend batching of multiple CONT_PTE in a single PTE setup Wen Jiang
2026-05-14 9:41 ` [PATCH v2 2/7] arm64/vmalloc: Allow arch_vmap_pte_range_map_size to batch multiple CONT_PTE Wen Jiang
2026-05-14 9:41 ` [PATCH v2 3/7] mm/vmalloc: Extract vmap_set_ptes() to consolidate PTE mapping logic Wen Jiang
2026-05-14 9:41 ` [PATCH v2 4/7] mm/vmalloc: Extend page table walk to support larger page_shift sizes and eliminate page table rewalk Wen Jiang
2026-05-20 11:53 ` Mike Rapoport
2026-05-20 20:56 ` Barry Song
2026-05-14 9:41 ` [PATCH v2 5/7] mm/vmalloc: map contiguous pages in batches for vmap() if possible Wen Jiang
2026-05-20 11:53 ` Mike Rapoport
2026-05-14 9:41 ` [PATCH v2 6/7] mm/vmalloc: align vm_area so vmap() can batch mappings Wen Jiang
2026-05-20 7:32 ` Uladzislau Rezki
2026-05-20 7:55 ` Barry Song
2026-05-20 9:12 ` Uladzislau Rezki
2026-05-14 9:41 ` [PATCH v2 7/7] mm/vmalloc: Stop scanning for compound pages after encountering small pages in vmap Wen Jiang
2026-05-20 9:44 ` Uladzislau Rezki
2026-05-20 10:56 ` Wen Jiang
2026-05-19 20:17 ` Andrew Morton [this message]
2026-05-20 3:40 ` [PATCH v2 0/7] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory Dev Jain
2026-05-20 7:15 ` Uladzislau Rezki
2026-05-20 12:29 ` Wen Jiang
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