I can not answer your question, but I can share my environment:
I have 32 cpu:
[root@gateway1 ~]# cat /proc/cpuinfo | grep processor | wc -l
32
[root@gateway1 ~]#
I config my pmd-cpu-mask with 0xffffff00.
[root@gateway1 ~]# ovs-vsctl get Open_vSwitch . other_config
{dpdk-init="true", pmd-cpu-mask="0xffffff00"}
I config my dpdk port with "n_rxq=4", This configuration is important :
Bridge br-ext
Port bond-ext
Interface "ext-dpdk-2"
type: dpdk
options: {dpdk-devargs="0000:84:00.1", n_rxq="4"}
Interface "ext-dpdk-1"
type: dpdk
options: {dpdk-devargs="0000:84:00.0", n_rxq="4"}
Bridge br-agg
Port bond-agg
Interface "agg-dpdk-2"
type: dpdk
options: {dpdk-devargs="0000:07:00.1", n_rxq="4"}
Interface "agg-dpdk-1"
type: dpdk
options: {dpdk-devargs="0000:07:00.0", n_rxq="4"}
And then cpu 1600%
top - 19:24:27 up 18 days, 24 min, 6 users, load average: 16.00,
16.00, 16.00
Tasks: 419 total, 1 running, 418 sleeping, 0 stopped, 0 zombie
%Cpu(s): 50.0 us, 0.0 sy, 0.0 ni, 50.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
KiB Mem : 26409787+total, 25773403+free, 5427996 used, 935844 buff/cache
KiB Swap: 4194300 total, 4194300 free, 0 used. 25799068+avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
32426 openvsw+ 10 -10 5772520 653044 14888 S 1599 0.2 2267:10
ovs-vswitchd
[root@gateway1 ~]# top
top - 19:24:50 up 18 days, 25 min, 6 users, load average: 16.00,
16.00, 16.00
Tasks: 419 total, 1 running, 418 sleeping, 0 stopped, 0 zombie
%Cpu0 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu1 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu2 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu3 : 0.0 us, 0.3 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu4 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu5 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu6 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu7 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu8 : 0.3 us, 0.3 sy, 0.0 ni, 99.3 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu9 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu10 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu11 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu12 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu13 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu14 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu15 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu16 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu17 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu18 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu19 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu20 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu21 : 0.0 us, 0.3 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu22 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu23 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu24 : 0.0 us, 0.3 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu25 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu26 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu27 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu28 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu29 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu30 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
%Cpu31 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si,
0.0 st
KiB Mem : 26409787+total, 25773369+free, 5428244 used, 935924 buff/cache
KiB Swap: 4194300 total, 4194300 free, 0 used. 25799040+avail Mem
on 2017/10/16 16:07, BALL SUN write:
sorry for late reply
we have reinstall the OVS, but still having the same issue.
we tried to set the pmd-cpu-mask=3, but only CPU1 is occupied.
%Cpu0 :100.0 us, 0.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu1 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu2 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu3 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
# /usr/local/bin/ovs-vsctl get Open_vSwitch . other_config
{dpdk-init="true", pmd-cpu-mask="3"}
# /usr/local/bin/ovs-appctl dpif-netdev/pmd-rxq-show
pmd thread numa_id 0 core_id 0:
isolated : false
port: dpdk0 queue-id: 0
pmd thread numa_id 0 core_id 1:
isolated : false
is it because there is only one nodes available in numa?
# numactl -H
available: 1 nodes (0)
node 0 cpus: 0 1 2 3
node 0 size: 8191 MB
node 0 free: 2633 MB
node distances:
node 0
0: 10
On Fri, Sep 22, 2017 at 9:16 PM, Flavio Leitner <[email protected]> wrote:
On Fri, 22 Sep 2017 15:02:20 +0800
Sun Paul <[email protected]> wrote:
hi
we have tried on that. e.g. if we set to 0x22, we still only able to
see 2 cpu is in 100%, why?
Because that's what you told OVS to do.
The mask 0x22 is 0010 0010 and each '1' there represents a CPU.
--
Flavio
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