On Wed, Jul 22, 2015 at 09:11:56AM +0000, Unnikannan Nair, Jishnu wrote: > Hi > I'm trying to use netsniff-ng to sniff on 3 different UDP streams. As for > testing I started with one instance of netsniff-ng bind to CPU 2 with > tcpreplay sending packets at 100Mbps (max limit on our network) > > Netsniff-ng command : > > sudo netsniff-ng -i eth1 -out=/share/job1/ --prefix="job1_" --interval 2MiB > -ring-size 10GiB -s -prio-high -f "dst net 224.10.10" -b 2 > > The sniffer is running on ESXi with 26GB of RAM alloted for this VM and 8 > cores of CPU. > > TCP replay command : > > tcpreplay -i eth1 -M 100Mbps -loop 100 -preload-pcap -sleep-accel=1 > /home/caps/*.pcap > > > > Sniffer starts normally but after creating around 268 files (each of 2MiB ) > the process just takes 100% of CPU and locks. Why is this happening? > > Attached capture you can see the htop output > > I also have a question about using fanout, as I intend to have 3 instances of > the application, but coming from different subnet (different filters will be > used), which would be the best possible way to start those instances, should > I use fanout option ? > > > > > > > > regards > > > Jishnu > > -- > You received this message because you are subscribed to the Google Groups > "netsniff-ng" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout.
Hi, Do you use Host <-> VM connection or you have 2 physical connections ? Actually, may be I will try to follow your instructions but I have only one i7 ThinkPad, so I can only simulate your case on the same host ... will try at the end of day ... So if you have some specific setup/notes, you can provide them. Regards, -- You received this message because you are subscribed to the Google Groups "netsniff-ng" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
