From: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> Date: Wed, 17 Mar 2021 17:38:44 +0100 > On Wed, 17 Mar 2021 16:31:07 +0000 > Alexander Lobakin <alobakin@xxxxx> wrote: > > > From: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> > > Date: Fri, 12 Mar 2021 15:43:24 +0000 > > > > Hi there, > > > > > This series is based on top of Matthew Wilcox's series "Rationalise > > > __alloc_pages wrapper" and does not apply to 5.12-rc2. If you want to > > > test and are not using Andrew's tree as a baseline, I suggest using the > > > following git tree > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux.git mm-bulk-rebase-v4r2 > > > > I gave this series a go on my setup, it showed a bump of 10 Mbps on > > UDP forwarding, but dropped TCP forwarding by almost 50 Mbps. > > > > (4 core 1.2GHz MIPS32 R2, page size of 16 Kb, Page Pool order-0 > > allocations with MTU of 1508 bytes, linear frames via build_skb(), > > GRO + TSO/USO) > > What NIC driver is this? Ah, forgot to mention. It's a WIP driver, not yet mainlined. The NIC itself is basically on-SoC 1G chip. > > I didn't have time to drill into the code, so for now can't provide > > any additional details. You can request anything you need though and > > I'll try to find a window to collect it. > > > > > Note to Chuck and Jesper -- as this is a cross-subsystem series, you may > > > want to send the sunrpc and page_pool pre-requisites (patches 4 and 6) > > > directly to the subsystem maintainers. While sunrpc is low-risk, I'm > > > vaguely aware that there are other prototype series on netdev that affect > > > page_pool. The conflict should be obvious in linux-next. > > -- > Best regards, > Jesper Dangaard Brouer > MSc.CS, Principal Kernel Engineer at Red Hat > LinkedIn: http://www.linkedin.com/in/brouer Al
