[ovs-dev] [PATCH] upcall: Configure datapath max-unkeep-op through ovs-vsctl.

[Ben Pfaff]

On Tue, Oct 08, 2019 at 03:01:44PM +0800, wenxu wrote:
> Thx.  I  found the root cause of the bad performance  delete tc flower
> rule in revalidator threads.
> 
> All the block is for the  netdev_hmap_mutex mutex. In the
> netdev_ports_get the handler with compete with revlalidator. The
> netdev_ifindex_to_odp_port and netdev_ports_flow_del with this mutex
> will bolock revalidator each other. So Maybe replace the hmap to
> rcuhlist is much better?  But there is no such rcuhlist utilitis in
> the lib

The cmap data structure might be better suited for this kind of use.
Would it solve the problem, in your view?