Date: Tue, 20 Jun 2017 11:05:16 -0600 From: Sean Bruno <sbruno@freebsd.org> To: freebsd-net@freebsd.org Subject: Re: igb stats double counting in 12-CURRENT r319025 Message-ID: <c6ad270d-712e-6f92-0d88-2c601558853b@freebsd.org> In-Reply-To: <CAOc73CBzoQCuKaUt7cpLRNV4BjE_OzKNBWzpnYZADSHtSapYbQ@mail.gmail.com> References: <CAOc73CBzoQCuKaUt7cpLRNV4BjE_OzKNBWzpnYZADSHtSapYbQ@mail.gmail.com>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --7aJ0eSIddRmegBUmGIIdUDnhn6xted7SU Content-Type: multipart/mixed; boundary="J9xU5j9h7H3le3kClVUAaJNtswIeHxktq"; protected-headers="v1" From: Sean Bruno <sbruno@freebsd.org> To: freebsd-net@freebsd.org Message-ID: <c6ad270d-712e-6f92-0d88-2c601558853b@freebsd.org> Subject: Re: igb stats double counting in 12-CURRENT r319025 References: <CAOc73CBzoQCuKaUt7cpLRNV4BjE_OzKNBWzpnYZADSHtSapYbQ@mail.gmail.com> In-Reply-To: <CAOc73CBzoQCuKaUt7cpLRNV4BjE_OzKNBWzpnYZADSHtSapYbQ@mail.gmail.com> --J9xU5j9h7H3le3kClVUAaJNtswIeHxktq Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 06/03/17 01:25, Ben Woods wrote: > Hi everyone, >=20 > I have noticed my networking statistics appear to be double counting on= two > of my FreeBSD 12-CURRENT boxes running r319025. Could someone please he= lp > me to find the problem (I believe it is likely to be a bug in the > networking driver). >=20 > I discovered the double counting by comparing the output of "systat > -ifstat" (which reports 988 KB/s) with the output of "iftop -B" (which > reports 491 KB/s). I know that iftop is the correct one, because my > internet speed only gives me around ~500 KB/s unfortunately. >=20 > # systat -ifstat -match igb0 > ... > Interface Traffic Peak Tot= al > igb0 in 988.008 KB/s 988.008 KB/s 36.29= 5 GB > out 16.953 KB/s 16.953 KB/s 295.77= 4 GB >=20 >=20 > # iftop -i igb0 -B > ... > TX: cum: 31.7KB peak: > 9.69KB > rates: 9.69KB 7.92KB 7.92KB > RX: 1.54MB > 491KB > 491KB 394KB 394KB >=20 >=20 > The two interfaces in these boxes are: >=20 > $ pciconf -lvv | grep igb1 -A4 > igb1@pci0:4:0:0: class=3D0x020000 card=3D0x00008086 chip=3D0x153= 98086 > rev=3D0x03 hdr=3D0x00 > vendor =3D 'Intel Corporation' > device =3D 'I211 Gigabit Network Connection' > class =3D network > subclass =3D ethernet >=20 > $ pciconf -lvv | grep igb0 -A4 > igb0@pci0:8:0:0: class=3D0x020000 card=3D0x15331849 chip=3D0x153= 38086 > rev=3D0x03 hdr=3D0x00 > vendor =3D 'Intel Corporation' > device =3D 'I210 Gigabit Network Connection' > class =3D network > subclass =3D ethernet >=20 > Regards, > Ben >=20 > -- > From: Benjamin Woods > woodsb02@gmail.com > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >=20 Huh ... I'll look at this today. If you get a chance, throw this over into bugzilla and tag me in it. sean --J9xU5j9h7H3le3kClVUAaJNtswIeHxktq-- --7aJ0eSIddRmegBUmGIIdUDnhn6xted7SU Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQGTBAEBCgB9FiEE6MTp+IA1BOHj9Lo0veT1/om1/LYFAllJVc1fFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEU4 QzRFOUY4ODAzNTA0RTFFM0Y0QkEzNEJERTRGNUZFODlCNUZDQjYACgkQveT1/om1 /LYQ7wgAv3q0LKkoFrEOntz+8HB0ul63cZPFPHrCE+/NBURctdq37Pc8zG4hLelH gywaEPrq8ciWA+j3Ie1qztXcnUlfmuWAvRFoGf5zKGDbQCpE2TUqkKtel1pjyKcf 6fieR+kgT8mU9MXAs8nxlL2oVf/lON+ExyJ4GqRcMhvd7xF3RNFfE56eWevjXZts rPMJ98abur/wUmSfyThXLNhfg+m+IMS9dS/7jwXAjxe0mf/JT2We3x5NZNjriZis 9lVA0TOJBtdNVxY9P75DEvvedAjCKUjYaqqvfNV3o56FyXxr63TicLJEyU7T+AQu FaveIA5b1fLp4o2jcZ2uQcLysde2sQ== =GaQt -----END PGP SIGNATURE----- --7aJ0eSIddRmegBUmGIIdUDnhn6xted7SU--
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