Re: [PATCH net-next 08/12] net: bridge: vlan: quiesce readers before freeing port VLANs
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From: Nikolay Aleksandrov <razor@blackwall.org>
Date: 2026-10-02 20:00:00
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bridge
On 02/10/2026 22:50, Jakub Kicinski wrote:
On Thu, 1 Oct 2026 15:07:21 +0300 Nikolay Aleksandrov wrote:quoted
- Yes, they can be batched and I had them batched initially but when I ran my tests I didn't notice any problems deleting a full VLAN range. It took 79ms on my host to delete 4k VLANs. As I've stated in my cover letter - the complexity is not worth it, so I dropped that patch.For the 79ms number - how big was the system and was it busy?
It was a VM with 3 vCPUs, not load. The baseline (without patches) was ~25% faster. This is still a slow path and deleting 4k VLANs is not a common thing. :) Note that flushing all VLANs usually happens when a port is being deleted and that is still fast as before (it doesn't wait a gp for every VLAN).