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...ubject: Re: [LARTC] Linux router performance Jesper Dangaard Brouer writes: > > Hi > > I''m sure that Robert can provide us with some interesting numbers. > > I have just tested routing performance on a AMD opteron 270 (dual core), > here I can route 400 kpps (tg3 netcards on PCI-X). I use the kernel > module "pktgen" to generate the packets (64 bytes in size). 400 kpps is decent but it all depends on your setup what you''re testing. Single flow? Number of packets in environment with hi-number of flows. ( Forces lookup...

...est > failure. > > * With testpmd and event_idx=off, if I send from the VM to host, I see > a performance increment especially in small packets. The buf api also > increases performance compared with only batching: Sending the minimum > packet size in testpmd makes pps go from 356kpps to 473 kpps. Sending > 1024 length UDP-PDU makes it go from 570kpps to 64 kpps. > > Something strange I observe in these tests: I get more pps the bigger > the transmitted buffer size is. Not sure why. > > ** Sending from the host to the VM does not make a big change with the &g...

...test > failure. > > * With testpmd and event_idx=off, if I send from the VM to host, I see > a performance increment especially in small packets. The buf api also > increases performance compared with only batching: Sending the minimum > packet size in testpmd makes pps go from 356kpps to 473 kpps. What's your setup for this. The number looks rather low. I'd expected 1-2 Mpps at least. > Sending > 1024 length UDP-PDU makes it go from 570kpps to 64 kpps. > > Something strange I observe in these tests: I get more pps the bigger > the transmitted buffer s...

...> * With testpmd and event_idx=off, if I send from the VM to host, I see >>> a performance increment especially in small packets. The buf api also >>> increases performance compared with only batching: Sending the minimum >>> packet size in testpmd makes pps go from 356kpps to 473 kpps. >> >> What's your setup for this. The number looks rather low. I'd expected >> 1-2 Mpps at least. >> > Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz, 2 NUMA nodes of 16G memory > each, and no device assigned to the NUMA node I'm testing in. Too low...

...idx=off, if I send from the VM to host, I see > > >>> a performance increment especially in small packets. The buf api also > > >>> increases performance compared with only batching: Sending the minimum > > >>> packet size in testpmd makes pps go from 356kpps to 473 kpps. > > >> > > >> What's your setup for this. The number looks rather low. I'd expected > > >> 1-2 Mpps at least. > > >> > > > Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz, 2 NUMA nodes of 16G memory > > > each, and no...

Hi I would like to ask you which processor is beter solution for router? Please shortly explain why? I have about 800 users. For each I create 2 htb classes and 4 filters. Moreower router have dhcp serwer and lots of iptables rules. I''m interested in P4 3Ghz HT and AMD Athlon 64 3000+. What is beter choice for my needs? What parametrs of processors are important: clock, cache, fsb

This still causes corruption issues for people so don't try to use in production please. Posting to expedite debugging. This adds infrastructure required for supporting multiple ring formats. The idea is as follows: we convert descriptors to an independent format first, and process that converting to iov later. Used ring is similar: we fetch into an independent struct first, convert that to

This still causes corruption issues for people so don't try to use in production please. Posting to expedite debugging. This adds infrastructure required for supporting multiple ring formats. The idea is as follows: we convert descriptors to an independent format first, and process that converting to iov later. Used ring is similar: we fetch into an independent struct first, convert that to

Hello I have 2 class-B networks (172.22.0.0/16 and 172.23.0.0/16, over 130k of ip''s) and need to setup traffic tbf shapers with 64kb/s for each ip from 172.22.0.0/16 and 128kb/s for each ip from 172.23.0.0/16 just read lartc and don''t understand how to use u32 for decreasing number of rules and hashing

Hi, I wonder about the performance of a Linux box used as router (I guest I''m not the first :). Althought I know it mainly depends on the hardware, I''m trying to find some references on the topic or comparations with other routing solutions (FreeBSD box used as router, Cisco, etc). For example, http://facweb.cti.depaul.edu/jyu/Publications/Yu-Linux-TSM2004.pdf (althought is

...s tap in host to test Guest RX. 2.1 Guest TX: Unfortunately current pktgen does not support virtio-net well since virtio-net may not free the skb during tx completion. So I test through a patch (https://lkml.org/lkml/2012/11/26/31) that don't wait for this freeing with a guest of 4 vcpu: #q | kpps | +improvement% 1 | 589K | 0% 2 | 952K | 62% 3 | 1290K | 120% 4 | 1578K | 168% 2.2 Guest RX: After commit 5d097109257c03a71845729f8db6b5770c4bbedc (tun: only queue packets on device), pktgen start to report a unbelievable huge kpps. (>2099kpps even for one queue). The problem if tun repo...

...s tap in host to test Guest RX. 2.1 Guest TX: Unfortunately current pktgen does not support virtio-net well since virtio-net may not free the skb during tx completion. So I test through a patch (https://lkml.org/lkml/2012/11/26/31) that don't wait for this freeing with a guest of 4 vcpu: #q | kpps | +improvement% 1 | 589K | 0% 2 | 952K | 62% 3 | 1290K | 120% 4 | 1578K | 168% 2.2 Guest RX: After commit 5d097109257c03a71845729f8db6b5770c4bbedc (tun: only queue packets on device), pktgen start to report a unbelievable huge kpps. (>2099kpps even for one queue). The problem if tun repo...

...Test environment: - Intel(R) Xeon(R) CPU E5620 @ 2.40GHz, 8 cores 2 numa nodes - Two directed connected 82599 - Host/Guest kenrel: net-next with the mq virtio-net patches and mq tuntap patches Pktgen test: - Local host generate 64 byte UDP packet to guest. - average of 20 runs 20 runs #q #vcpu kpps +improvement 1q 1vcpu: 264kpps +0% 2q 2vcpu: 451kpps +70% 3q 3vcpu: 661kpps +150% 4q 4vcpu: 941kpps +250% Netperf Local VM to VM test: - VM1 and its vcpu/vhost thread in numa node 0 - VM2 and its vcpu/vhost thread in numa node 1 - a script is used to lauch the netperf with demo mode an...

...Test environment: - Intel(R) Xeon(R) CPU E5620 @ 2.40GHz, 8 cores 2 numa nodes - Two directed connected 82599 - Host/Guest kenrel: net-next with the mq virtio-net patches and mq tuntap patches Pktgen test: - Local host generate 64 byte UDP packet to guest. - average of 20 runs 20 runs #q #vcpu kpps +improvement 1q 1vcpu: 264kpps +0% 2q 2vcpu: 451kpps +70% 3q 3vcpu: 661kpps +150% 4q 4vcpu: 941kpps +250% Netperf Local VM to VM test: - VM1 and its vcpu/vhost thread in numa node 0 - VM2 and its vcpu/vhost thread in numa node 1 - a script is used to lauch the netperf with demo mode an...