[LEDE-DEV] ar71xx use kernel 4.9 by default
nbd at nbd.name
Tue Oct 17 07:05:55 PDT 2017
On 2017-10-16 00:35, Hauke Mehrtens wrote:
> I added support for kernel 4.9 to the ar71xx target some days ago and it
> was tested by multiple people.
> The only regression in kernel 4.9 compared to 4.4, I am aware of was
> this performance regression reported by Sven Schönhoff:
> I haven't found the time to investigate this problem, it would be nice
> if some one could look into this.
> If there are no other complains I would like to switch the default
> kernel of the ar71xx target to 4.9 next weekend, are there any
> objections to this plan?
I did some testing and tracked down the source of this regression. There
was a recent commit that added GRO support to the ag71xx ethernet
driver. This causes a regression on both 4.4 and 4.9, however it is more
severe on 4.9.
I've reverted this change, and now 4.9 actually performs slightly better
Let's update ar71xx to 4.9 soon :)
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