Up To 12.8x Improvement Observed For gup_test With New Linux MM Patches
Up To 12.8x Improvement Observed For gup_test With New Linux MM Patches Written by Michael Larabel in Linux Kernel on 11 August 2026 at 08:16 AM EDT. Add A Comment Linux developer Rik van Riel has pulled off some nice Linux kernel optimizations over the years and the Meta engineer has been working on another one around batching of look-ups with Linux's follow_page_mask() that is used for translating virtual addresses to the corresponding struct page. With the Linux kernel's follow_page_mask() function currently walking the page tables one page at a time, Rik van Riel has been working on adapting it so walkers can hand back more than one page per call.
- ▪Up To 12.8x Improvement Observed For gup_test With New Linux MM Patches Written by Michael Larabel in Linux Kernel on 11 August 2026 at 08:16 AM EDT.
- ▪Add A Comment Linux developer Rik van Riel has pulled off some nice Linux kernel optimizations over the years and the Meta engineer has been working on another one around batching of look-ups with Linux's follow_page_mask() that is used for
- ▪With the Linux kernel's follow_page_mask() function currently walking the page tables one page at a time, Rik van Riel has been working on adapting it so walkers can hand back more than one page per call.
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| Original publisher | Phoronix |
| Canonical URL | https://www.phoronix.com/news/Linux-Batch-Follow-Page-Mask |
| Publication time | Tue, 11 Aug 2026 08:16:00 -0400 |
| Retrieval time | 2026-08-11T12:20:47.860Z |
| Last seen | 2026-08-11T12:20:47.860Z |
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Up To 12.8x Improvement Observed For gup_test With New Linux MM Patches Written by Michael Larabel in Linux Kernel on 11 August 2026 at 08:16 AM EDT. Add A Comment Linux developer Rik van Riel has pulled off some nice Linux kernel optimizations over the years and the Meta engineer has been working on another one around batching of look-ups with Linux's follow_page_mask() that is used for translating virtual addresses to the corresponding struct page. With the Linux kernel's follow_page_mask() function currently walking the page tables one page at a time, Rik van Riel has been working on adapting it so walkers can hand back more than one page per call. This ability to batch look-ups in turn can provide for nice speed-ups for users of follow_page_mask() like Linux's get_user_pages() code.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Phoronix.