Thread (4 messages) 4 messages, 4 authors, 2026-03-16

Re: [PATCH net-next] net: page_pool: scale alloc cache with PAGE_SIZE

From: Jakub Kicinski <kuba@kernel.org>
Date: 2026-03-12 00:56:05
Also in: lkml

On Mon, 9 Mar 2026 10:13:01 +0200 Nimrod Oren wrote:
The current page_pool alloc-cache size and refill values were chosen to
match the NAPI budget and to leave headroom for XDP_DROP recycling.
These fixed values do not scale well with large pages,
as they significantly increase a given page_pool's memory footprint.

Scale these values to better balance memory footprint across page sizes,
while keeping behavior on 4KB-page systems unchanged.
Jesper WDYT? I'm of course happy with this simple approach.
https://lore.kernel.org/all/20260309081301.103152-1-noren@nvidia.com/ (local)
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