| Message ID | 1665646872-20954-1-git-send-email-zhangxiangqian@kylinos.cn (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 3d6642eac74d9442fde232181aa52d26d47991df |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: macvlan: change schedule system_wq to system_unbound_wq | expand |
Hello: This patch was applied to netdev/net.git (master) by David S. Miller <davem@davemloft.net>: On Thu, 13 Oct 2022 15:41:12 +0800 you wrote: > For FT2000+/64 devices, > when four virtual machines share the same physical network interface, > DROP will occur due to the single core CPU performance problem. > > ip_check_defrag and macvlan_process_broadcast is on the same CPU. > When the MACVLAN PORT increases, the CPU usage reaches more than 90%. > bc_queue > bc_queue_len_used (default 1000), causing DROP. > > [...] Here is the summary with links: - net: macvlan: change schedule system_wq to system_unbound_wq https://git.kernel.org/netdev/net/c/3d6642eac74d You are awesome, thank you!
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 1080d6e..dd3f35e 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -361,7 +361,7 @@ static void macvlan_broadcast_enqueue(struct macvlan_port *port, } spin_unlock(&port->bc_queue.lock); - schedule_work(&port->bc_work); + queue_work(system_unbound_wq, &port->bc_work); if (err) goto free_nskb;
For FT2000+/64 devices, when four virtual machines share the same physical network interface, DROP will occur due to the single core CPU performance problem. ip_check_defrag and macvlan_process_broadcast is on the same CPU. When the MACVLAN PORT increases, the CPU usage reaches more than 90%. bc_queue > bc_queue_len_used (default 1000), causing DROP. Signed-off-by: zhangxiangqian <zhangxiangqian@kylinos.cn> --- drivers/net/macvlan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)