Sorry, I forgot to tell you to use -H Alfredo
On 05 Sep 2014, at 11:02, Alfredo Cardigliano <[email protected]> wrote: > Hi Ilya > please try zcount in svn, there is a temporary workaround for this. > > Alfredo > > On 04 Sep 2014, at 18:21, Ilya Gavrilov <[email protected]> wrote: > >> Hi, Alfredo >> >> Thank you for the full answer. >> It would be great if you find workaround for this. >> >> Ilya. >> >> 2014-09-04 14:52 GMT+04:00 Alfredo Cardigliano <[email protected]>: >>> Hi Ilya >>> unfortunately this is a limitation of the 82576 chipset: >>> since ZC (as DNA) drivers are very close to hw, they read drops from NIC >>> counters, >>> on this card the counter is able to accumulate up to 4K. >>> Each time we read stats (every second in this case) we reset this counter, >>> thus you see 4k drops per second. >>> We will try to find a workaround for this. >>> >>> Alfredo >>> >>> On 01 Sep 2014, at 16:58, Ilya Gavrilov <[email protected]> wrote: >>> >>>> Hi Alfredo, >>>> >>>> I am using PF_RING 6.0.1, intel gigabit adapters: >>>> 03:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network >>>> Connection (rev 01) >>>> 03:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network >>>> Connection (rev 01) >>>> >>>> with driver from drivers/PF_RING_aware/intel/igb/igb-5.2.5-zc/src >>>> drivers loaded withs script load_driver.sh from this directory >>>> >>>> packet rate is about 53kpkt/s >>>> >>>> 1. with not modified zcount, I get next output >>>> >>>> sudo ./zcount -i zc:eth4 -c 99 >>>> ..... >>>> ========================= >>>> Absolute Stats: 537'361 pkts (0 drops) - 256'858'558 bytes >>>> Actual Stats: 53'731.73 pps (0.00 drops) - 0.21 Gbps >>>> ========================= >>>> >>>> sudo ./zcount -i eth4 -c 99 >>>> .... >>>> ========================= >>>> Absolute Stats: 376'166 pkts (0 drops) - 179'807'348 bytes >>>> Actual Stats: 53'731.08 pps (0.00 drops) - 0.21 Gbps >>>> ========================= >>>> >>>> 2. with modified zcount ( usleep(1) after pfring_zc_recv_pkt line ): >>>> >>>> sudo ./zcount_slow -i zc:eth4 -c 99 >>>> .... >>>> ========================= >>>> Absolute Stats: 112'809 pkts (24'570 drops) - 53'922'702 bytes >>>> Actual Stats: 18'808.28 pps (4'094.62 drops) - 0.07 Gbps >>>> ========================= >>>> >>>> sudo ./zcount_slow -i eth4 -c 99 >>>> .... >>>> ========================= >>>> Absolute Stats: 150'821 pkts (262'184 drops) - 72'092'438 bytes >>>> Actual Stats: 18'834.86 pps (34'896.90 drops) - 0.07 Gbps >>>> ========================= >>>> >>>> So, I get wrong drops when run command sudo ./zcount_slow -i zc:eth4 -c 99 >>>> >>>> Ilya. >>>> >>>> 2014-09-01 18:29 GMT+04:00 Alfredo Cardigliano <[email protected]>: >>>>> Hi Ilya >>>>> please provide more details about your configuration in order to >>>>> reproduce the issue: >>>>> - driver model/version >>>>> - ingress packet rate >>>>> - command and some output from zcount >>>>> >>>>> Alfredo >>>>> >>>>> On 01 Sep 2014, at 15:14, Ilya Gavrilov <[email protected]> wrote: >>>>> >>>>>> Hello, >>>>>> >>>>>> I am using pfring in zc mode and want to get number of lost packets on >>>>>> interface. >>>>>> It seems pfring_zc_stats doesn't get real number in zc mode. >>>>>> >>>>>> if i add usleep(1); after getting each packet to zcount.c example >>>>>> application >>>>>> i get very small Actual stats pps, but Actual stats drop is very >>>>>> small, always about 4000. >>>>>> >>>>>> In non-zc mode i get real number of lost packets. >>>>>> >>>>>> How can I get real number of lost packets on interface? >>>>>> >>>>>> Please, help, >>>>>> Ilya. >>>>>> _______________________________________________ >>>>>> Ntop-misc mailing list >>>>>> [email protected] >>>>>> http://listgateway.unipi.it/mailman/listinfo/ntop-misc >>>>> >>>>> _______________________________________________ >>>>> Ntop-misc mailing list >>>>> [email protected] >>>>> http://listgateway.unipi.it/mailman/listinfo/ntop-misc >>>> _______________________________________________ >>>> Ntop-misc mailing list >>>> [email protected] >>>> http://listgateway.unipi.it/mailman/listinfo/ntop-misc >>> >>> _______________________________________________ >>> Ntop-misc mailing list >>> [email protected] >>> http://listgateway.unipi.it/mailman/listinfo/ntop-misc >> _______________________________________________ >> Ntop-misc mailing list >> [email protected] >> http://listgateway.unipi.it/mailman/listinfo/ntop-misc > _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
