Adrian cores have nothing to do with the your question. ntop is multithread and threads can be spawn to multiple cores
Luca On Jan 7, 2011, at 4:18 PM, Adrian Rapa wrote: > hi, > so it can use only one core? > > Cu respect, > Adrian Rapa > Millennium IT > > tel.: 0372-168.638 > fax.: 021-569.79.99 > e-mail: [email protected] > web: www.mitnet.ro > > > On 07.01.2011 15:02, Luca Deri wrote: >> Adrian >> ntop is CPU bound that means that even if you accelerate packet capture, >> ntop performance will not increase much. Please use nprobe are preprocessor >> of packets that are converted to flows and analyzed by ntop >> >> Regards Luca >> >> On Jan 1, 2011, at 6:48 PM, Adrian Rapa wrote: >> >>> hi, >>> i am trying to do a ntop pfring setup. >>> I compiled pf_ring, e1000e and libpcap drivers from svn. >>> I compiled ntop with ./configure --with-rrd-home=/opt/rrdtool-1.4.5/ >>> --with-pcap-root=/kit/pf_ring/PF_RING/userland/libpcap-1.0.0-ring/ >>> LIBS="-lpcap -lpfring -lpthread" >>> I have eth1 which is a port mirror with about 700Mb of trafic RX+tx. >>> >>> If i start ntop -i eth1 i have a lot of packet loss. If i use top, i see >>> that a single cpu is used to capture packets. >>> As i know pf_ring should increase the packet capture rate, but it is acting >>> as normal linux pcap. >>> >>> is it normal for ntop to use a single cpu, or can i do somenthing to use >>> all 8 CPU? >>> >>> >>> -- >>> Cu respect, >>> Adrian Rapa >>> Millennium IT >>> >>> tel.: 0372-168.638 >>> fax.: 021-569.79.99 >>> e-mail: [email protected] >>> web: www.mitnet.ro >>> >>> >>> _______________________________________________ >>> Ntop mailing list >>> [email protected] >>> http://listgateway.unipi.it/mailman/listinfo/ntop >> --- >> >> "Debugging is twice as hard as writing the code in the first place. >> Therefore, if you write the code as cleverly as possible, you are, by >> definition, not smart enough to debug it. - Brian W. Kernighan >> >> _______________________________________________ >> Ntop mailing list >> [email protected] >> http://listgateway.unipi.it/mailman/listinfo/ntop >> > --- We can't solve problems by using the same kind of thinking we used when we created them - Albert Einstein _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop
