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SubjectRe: [net-next 1/2] ipvs: batch __ip_vs_cleanup

Hello,

On Thu, 18 Jul 2019, Haishuang Yan wrote:

> As the following benchmark testing results show, there is a little performance improvement:

OK, can you send v2 after removing the LIST_HEAD(list) from
both patches, I guess, it is not needed. If you prefer, you can
include these benchmark results too.

> $ cat add_del_unshare.sh
> #!/bin/bash
>
> for i in `seq 1 100`
> do
> (for j in `seq 1 40` ; do unshare -n ipvsadm -A -t 172.16.$i.$j:80 >/dev/null ; done) &
> done
> wait; grep net_namespace /proc/slabinfo
>
> Befor patch:
> $ time sh add_del_unshare.sh
> net_namespace 4020 4020 4736 6 8 : tunables 0 0 0 : slabdata 670 670 0
>
> real 0m8.086s
> user 0m2.025s
> sys 0m36.956s
>
> After patch:
> $ time sh add_del_unshare.sh
> net_namespace 4020 4020 4736 6 8 : tunables 0 0 0 : slabdata 670 670 0
>
> real 0m7.623s
> user 0m2.003s
> sys 0m32.935s
>
>
> >
> >> + ipvs = net_ipvs(net);
> >> + ip_vs_conn_net_cleanup(ipvs);
> >> + ip_vs_app_net_cleanup(ipvs);
> >> + ip_vs_protocol_net_cleanup(ipvs);
> >> + ip_vs_control_net_cleanup(ipvs);
> >> + ip_vs_estimator_net_cleanup(ipvs);
> >> + IP_VS_DBG(2, "ipvs netns %d released\n", ipvs->gen);
> >> + net->ipvs = NULL;

Regards

--
Julian Anastasov <ja@ssi.bg>

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