Latency Test OK, dennoch Fehlermeldung

Jitter is good, even for software stepping so move on.
You can also try
latency-histogram --nobase --sbinsize 1000 --show
to check if there are excursions in latency.

Muftijaja wrote:

Thanks for your doc, meanwhile I changed to the internal Intel 82579 network adapter and the jitter grows worse. 
 

Please type man hm2_eth and ensure the network settings for coalesence are set up.

Hi rodw, thanks for this hint. I havethis line in my hal file: Is that sufficient?loadrt hm2_eth board_ip="10.10.10.10"With the following settings the connection works at once:
 

My ping to 10.10.10.10:
 
What do you think about it?

THanks, Arno

That looks like IRQ coalescing is not disabled.
You should get ping times about 1/2 your current values.
(the first ping can be ignored because it includes a ARP request)

what does

ip a

report?
 

ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:0a:cd:00:00:56 brd ff:ff:ff:ff:ff:ff
inet 192.168.178.55/24 brd 192.168.178.255 scope global dynamic noprefixroute enp2s0
valid_lft 862882sec preferred_lft 862882sec
inet6 2003:ce:5f08:8600:c668:e1df:16a1:628a/64 scope global dynamic noprefixroute
valid_lft 6832sec preferred_lft 971sec
inet6 fe80::3e8d:84c2:564c:edaa/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:23:24:5b:b4:ac brd ff:ff:ff:ff:ff:ff
altname enp0s25
inet 10.10.10.2/24 brd 10.10.10.255 scope global noprefixroute eno1
valid_lft forever preferred_lft forever
inet6 fe80::282c:39b2:ab82:4316/64 scope link noprefixroute
valid_lft forever preferred_lft forever

" IRQ coalescing is not disabled." How can I do that?