Thread (4 messages) 4 messages, 3 authors, 2026-03-11

Re: [PATCH net-next] net: mana: Expose page_pool stats via ethtool

From: Dipayaan Roy <hidden>
Date: 2026-03-11 19:47:36
Also in: linux-hyperv, linux-rdma, lkml

On Fri, Feb 27, 2026 at 09:27:22AM -0800, Jakub Kicinski wrote:
On Fri, 27 Feb 2026 01:39:18 -0800 Dipayaan Roy wrote:
quoted
MANA relies on page_pool for RX buffers, and the buffer refill paths
can behave quite differently across architectures and configurations (e.g.
base page size, fragment vs full-page usage). This makes it harder to
understand and compare RX buffer behavior when investigating performance
and memory differences across platforms.
Standard stats must not be duplicated in ethtool -S.
ynl and ynltool provide easy access to these stats

# ynltool page-pool stats 
    eth0[2]	page pools: 44 (zombies: 0)
		refs: 495680 bytes: 2030305280 (refs: 0 bytes: 0)
		recycling: 100.0% (alloc: 7745:2097593009 recycle: 379301630:1717888312)
Thanks Jakub for the feedback, and understood the generic page pool
stats should be combined with ethtool -S. I will drop this patch
and use ynltool page-pool stats.


Regards

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