Re: [net-next PATCH v7 1/8] octeontx2-pf: map skb data as device writeable
From: Jakub Kicinski
Date: Thu Aug 29 2024 - 10:49:11 EST
On Thu, 29 Aug 2024 11:17:25 +0530 Bharat Bhushan wrote:
> > How did you test this prior to adding skb_unshare()?
> > Could you share some performance data with this change?
>
> testing using flood ping and iperf with multiple instance,
Makes sense, neither of these will detect corruption of data pages :(
IIRC iperf just ignores the data, ping doesn't retransmit.
You gotta beef up your testing...
> I do not see any drop in performance numbers
Well. What's the difference in CPU busy time of v5 vs v7?
You'll copy all TCP packets, they are (pretty much) all clones.