* [dpdk-users] Does any thing wrong with the DPDK sample l2fwd-jobstats
@ 2016-08-17 12:06 Caianning
2016-08-17 13:10 ` Wiles, Keith
0 siblings, 1 reply; 2+ messages in thread
From: Caianning @ 2016-08-17 12:06 UTC (permalink / raw)
To: users; +Cc: Houzhipeng, Houyuzhu
Hi,
I noticed that when the pktgen(version 3.0.09) port 1 rx rate drop to half of normal when l2fwd-jobstat shows Port statistics. (while l2fwd dropped packet is 0). And port 0 kept same as normal.
DPDK version 16.07.0
My cmd line as following:
Pktgen:
pktgen -c 0x1ff -n 3 -- -P -m "[1-2:3-4].0,[5-6:7-8].1"
with port 0 and port 1 started
lwfwd-jobstats:
l2fwd-jobstats -c 580000000 -- -p 3
but the l2fwd does not. Maybe some other processes disturbed the forwarding processing(alarm trig task re-schedule?), and Shall these cores be isolated?
Thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [dpdk-users] Does any thing wrong with the DPDK sample l2fwd-jobstats
2016-08-17 12:06 [dpdk-users] Does any thing wrong with the DPDK sample l2fwd-jobstats Caianning
@ 2016-08-17 13:10 ` Wiles, Keith
0 siblings, 0 replies; 2+ messages in thread
From: Wiles, Keith @ 2016-08-17 13:10 UTC (permalink / raw)
To: Caianning; +Cc: users, Houzhipeng, Houyuzhu
Comments inline.
Regards,
Keith
> On Aug 17, 2016, at 7:06 AM, Caianning <caianning@huawei.com> wrote:
>
> Hi,
> I noticed that when the pktgen(version 3.0.09) port 1 rx rate drop to half of normal when l2fwd-jobstat shows Port statistics. (while l2fwd dropped packet is 0). And port 0 kept same as normal.
> DPDK version 16.07.0
>
> My cmd line as following:
> Pktgen:
> pktgen -c 0x1ff -n 3 -- -P -m "[1-2:3-4].0,[5-6:7-8].1"
> with port 0 and port 1 started
The Pktgen command line looks find to me and I assume the lcores being used are full physical core?
Is the
>
> lwfwd-jobstats:
> l2fwd-jobstats -c 580000000 -- -p 3
BTW, it maybe easier to see which cores are being used here by using the -l <lcores-numbers> instead of -c. Eg. -l 0-8 and -l 31-32,34 this also assumes the lcores are per physical core.
If you run the tools/cpu_info.py script you will be able to see the lcore/core relationship.
>
> but the l2fwd does not. Maybe some other processes disturbed the forwarding processing(alarm trig task re-schedule?), and Shall these cores be isolated?
>
> Thanks.
>
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