Hi Marco it seems there is no packet loss, did you check the interface stats with ethtool -S to check if pats are getting lost at interface level?
Best Regards Alfredo > On 16 Jan 2018, at 17:17, Marco Teixeira <[email protected]> wrote: > > Hello, > > Is PF_RING the culprit here ?? How to tweak this? > Absolute stats showing around 2Gb/s and Actual stats near 1Gb/s... > > === > [marco@nprobe ~]$ sudo pfcount -i ens2f0 > Using PF_RING v.7.0.0 > Capturing from ens2f0 [mac: D8:D3:85:A0:12:50][if_index: 5][speed: 10000Mb/s] > # Device RX channels: 1 > # Polling threads: 1 > Dumping statistics on /proc/net/pf_ring/stats/2553-ens2f0.2 > ========================= > Absolute Stats: [136'889 pkts total][0 pkts dropped][0.0% dropped] > [136'889 pkts rcvd][128'561'396 bytes rcvd] > ========================= > > ========================= > Absolute Stats: [274'090 pkts total][0 pkts dropped][0.0% dropped] > [274'090 pkts rcvd][252'023'439 bytes rcvd][274'048.34 pkt/sec][2'015.88 > Mbit/sec] > ========================= > Actual Stats: [137'201 pkts rcvd][1'000.15 ms][137'180.28 pps][0.99 Gbps] > ========================= > > === > > Cumprimentos, > > Marco Teixeira > > ----------------------------------------------------------------------------------------------------------------------------------- > Serviços de Comunicações da Universidade do Minho > Campus de Azurém, 4800-058 Guimarães - Portugal > Tel.: +351 253510141, Fax: +351 253604021 > [email protected] <mailto:[email protected]> | > http://www.scom.uminho.pt <http://www.scom.uminho.pt/> > ----------------------------------------------------------------------------------------------------------------------------------- > > > 2018-01-16 15:52 GMT+00:00 Marco Teixeira <[email protected] > <mailto:[email protected]>>: > Hi list, > > Do you know of any limitation (license wise) on the capture speed of nProbe? > Can't seem to go above 1Gb/s, but machine still has plenty of CPU available, > and PCIe 10Gb/s NIC... > > === > Build OS: CentOS Linux release 7.4.1708 (Core) > GIT rev: 8.2-stable:fe33351b54075fa76a242548fb830e2bdf1d9224:20180112 > Edition: nProbe Pro > License Type: Permanent License > === > > === > [marco@nprobe ~]$ more /proc/net/pf_ring/stats/1361-ens2f0.1 > Duration: 0:00:33:05:185 > Bytes: 238825829235 > Packets: 272020616 > Dropped: 0 > > [marco@nprobe ~]$ more /proc/net/pf_ring/1361-ens2f0.1 > Bound Device(s) : ens2f0 > Active : 1 > Breed : Standard > Appl. Name : nProbe > Socket Mode : RX only > Capture Direction : RX+TX > Sampling Rate : 1 > IP Defragment : No > BPF Filtering : Disabled > Sw Filt Hash Rules : 0 > Sw Filt WC Rules : 0 > Sw Filt Hash Match : 0 > Sw Filt Hash Miss : 0 > Hw Filt Rules : 0 > Poll Pkt Watermark : 8 > Num Poll Calls : 0 > Channel Id Mask : 0xFFFFFFFFFFFFFFFF > VLAN Id : 65535 > Slot Version : 16 [7.0.0] > Min Num Slots : 4108 > Bucket Len : 128 > Slot Len : 336 [bucket+header] > Tot Memory : 1388544 > Tot Packets : 276360318 > Tot Pkt Lost : 0 > Tot Insert : 276360318 > Tot Read : 276360318 > Insert Offset : 711632 > Remove Offset : 711632 > Num Free Slots : 4108 > Reflect: Fwd Ok : 0 > Reflect: Fwd Errors: 0 > === > > Regards, > Marco > > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc
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