Hi Michael
thanks for asked: yes we’re good in our region and so far safe

I believe you need to use a different tag as the one you are using does not 
include the fixes. See
- https://github.com/ntop/ntopng/issues/3845
- https://github.com/ntop/ntopng/issues/3874

Please use a recent code version, not earlier than mid May

Regards Luca

> On 28 May 2020, at 15:17, Muenz, Michael <m.mu...@spam-fetish.org> wrote:
> 
> Hi Luca,
> 
> Thanks for your prompt reply, hope you're all well.
> Family in Ferrara now finally enjoying usual activities.
> 
> As we want to be as close as possible to the underlying OS we are running:
> https://github.com/opnsense/ports/blob/master/net/ntopng/Makefile#L42
> 
> Not sure if this release tag already includes your fixes, but I can wait for 
> upstream.
> 
> Best,
> Michael
> 
> Am 28.05.2020 um 14:07 schrieb Luca Deri:
>> Hi Michael
>> did you take the github package code or the github clone code? In the latter 
>> we have made a fix that should address this issue. Please let me know
>> 
>> If you want you can join https://tinyurl.com/r7w37nr for promptly replies
>> 
>> Regards Luca
>> 
>>> On 28 May 2020, at 12:31, Muenz, Michael <m.mu...@spam-fetish.org> wrote:
>>> 
>>> Hi,
>>> 
>>> I'm maintaining the OPNsense plugin for ntopng and have several reports 
>>> that with update from 3.8 to 4.0 the CPU grows from around 5% to 100% (one 
>>> core). I'm not sure if FreeBSD in general is affected since OPNsense relies 
>>> on HardenedBSD, but maybe you can try to help out finding the problem.
>>> 
>>> The error is easy reproducable sind you can hop from v4 to v3 and always 
>>> see the spike when going to v4.
>>> In the beginning the FreeBSD port had some errors for file permions which 
>>> was fixed already.
>>> Now we are in a stable state and ntopng.log is clear.
>>> 
>>> I checked the process with truss (BSD variant to strace) and compared to 
>>> 3.8.
>>> There are tons of:
>>> 
>>> 
>>> select(1,{ },0x0,0x0,{ 0.1904051 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1903830 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1903608 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1903392 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1903176 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1902955 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1902732 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1902516 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1902294 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1902072 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1901856 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1901639 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1901423 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1901207 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1900967 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1900749 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1900533 })              ERR#22 'Invalid argument'
>>> select(1,{ },0x0,0x0,{ 0.1900316 })              ERR#22 'Invalid argument'
>>> 
>>> Not sure if these are responsible for the high CPU, but I have no other 
>>> idea where to look for.
>>> 
>>> 
>>> Best,
>>> 
>>> Michael
>>> 
>>> _______________________________________________
>>> Ntop mailing list
>>> Ntop@listgateway.unipi.it
>>> http://listgateway.unipi.it/mailman/listinfo/ntop
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> 
> 
> -- 
> www.muenz-it.de
> - Cisco, Linux, Networks
> 
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