Hello, i replaced the MP kernel with the SP one and made some tests.

Perfomances are better, all cpu goes to the kernel and user processes. But
it is slow. I will ask to change the hardware, as it is old.

jy boisiaud

Le mer. 22 juil. 2020 à 08:36, jean-yves boisiaud <
jean-yves.boisi...@alcor-consulting.fr> a écrit :

> ok, i'll try with the bsd.sp kernel.
>
> thank you for your help.
>
> :-(
>
>
> Le dim. 19 juil. 2020 à 07:41, Chris Cappuccio <ch...@nmedia.net> a
> écrit :
>
>> jean-yves boisiaud [jean-yves.boisi...@alcor-consulting.fr] wrote:
>> > Last week, I upgraded a couple of firewalls using carp/pfsync and
>> sasyncd
>> > from 6.0 to 6.7 (yes, big jump !).
>> >
>> > I also applied all the 6.7 published patches.
>> >
>> > When some heavy traffic takes one of the IPSec tunnel, I noticed that :
>> > - all network connections are slowed down
>> > - unused network bandwidth increase instead of decrease
>> > - idle CPU move towards 0, and spinning increase to take about 50% of
>> the
>> > CPU
>> >
>> > When I stop the IPSec traffic :
>> > - network connections increase immediatly
>> > - unused network bandwidth cecreases immediately
>> > - spinning CPU is low.
>> >
>>
>> This is basically a performance regression that could be due to the MP
>> work. You are seemingly running into contention that wasn't possible
>> before.
>> The question is, where is this happening? I don't know if the dynamic
>> tracer
>> can help here.
>>
>
>
> --
> Jean-Yves Boisiaud - Alcor Consulting
> 49, rue du Chemin Vert
> 49300 Cholet
> mobile : +33 6 63 71 73 46
>

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