Date: Sat, 25 Mar 2017 16:32:33 -0700 From: Navdeep Parhar <np@FreeBSD.org> To: Slawa Olhovchenkov <slw@zxy.spb.ru> Cc: freebsd-net@FreeBSD.org Subject: Re: TSO and packets accounting Message-ID: <20170325233233.GA17705@ox> In-Reply-To: <20170325223930.GK86500@zxy.spb.ru> References: <20170325223930.GK86500@zxy.spb.ru>
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On Sun, Mar 26, 2017 at 01:39:30AM +0300, Slawa Olhovchenkov wrote: > How to acoount output packets w/ TSO? > I mean as one large packet. What I see: > > # netstat -nbI lagg0 1 > input lagg0 output > packets errs idrops bytes packets errs bytes colls > 1702715 0 0 122228560 6274492 0 9401968581 0 > 1623416 0 0 116306353 6035291 0 9045680036 0 > 1670956 0 0 119911678 6107868 0 9153586152 0 > 1682365 0 0 120518112 6157620 0 9228163875 0 > 1575295 0 0 112786199 5831604 0 8736670135 0 > 1596283 0 0 114404028 5910990 0 8852555094 0 > 1651946 0 0 118449478 6080815 0 9109251501 0 > 1661730 0 0 119001512 6152532 0 9219357915 0 > 1638212 0 0 117502802 6114157 0 9160154253 0 > 1644270 0 0 117823930 6116968 0 9164984649 0 > > 9401968581/6274492 = 1498.44299442887169192342 > > TSO not worked? > Or this is adapted acounting? The interfaces are cc(4), so this is adapter accounting. The numbers you see are coming from hardware MAC statistics that track "on-the-wire" frames. If you want to know if TSO is occurring look for the driver stats for the number of TSO work requests it has sent to the chip: # sysctl dev.cc. | grep tso_wrs Regards, Navdeep > > cc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=ec07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6> > ether 00:07:43:04:b3:20 > nd6 options=9<PERFORMNUD,IFDISABLED> > media: Ethernet 40Gbase-SR4 <full-duplex> > status: active > cc1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=ec07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6> > ether 00:07:43:04:b3:20 > nd6 options=9<PERFORMNUD,IFDISABLED> > media: Ethernet 40Gbase-SR4 <full-duplex> > status: active > lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=ec07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6> > ether 00:07:43:04:b3:20 > nd6 options=9<PERFORMNUD,IFDISABLED> > media: Ethernet autoselect > status: active > groups: lagg > laggproto lacp lagghash l2,l3,l4 > laggport: cc0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> > laggport: cc1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> > _______________________________________________ > 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"
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