After trial and error, I found it's because I only enable one port, so once the packet fills up all my rx descriptor, the rest of incoming packet becomes RX-errors. If I set the rxd to 2048, then the RX-packets will be 2047. ./testpmd -c 0xff -n2 -v -m 128M -- --burst=128 -i --rxq 2 --txq 2 --rxd 2048 --txd 2048 (Please correct me if I'm wrong)
So I think this is the right behaviour. Thanks. On Fri, Mar 28, 2014 at 3:26 PM, William Tu <u9012063 at gmail.com> wrote: > Hi folks, > > I'm using two servers connected back to back using 2 Intel 82599 10G NICs > to test the dpdk. At the sender side, I use dpdk Pktgen to generate UDP > packet. I program the destination mac statically to make sure no ARP is > necessary. > > My first experiments using Pktgen on both sender and receiver shows around > 6M pkt/sec, with each packet having 128 byte. Then I replace the receiver > side with testpmd > " x86_64-default-linuxapp-gcc/app/testpmd -c ff -n 4 -- -i " > and the sender side remains the same setting using Pktgen. > > As shown below, once my testpmd receives 127 packets, the rest of all > packets becomes RX-errors. I try lower down the sender's rate to only 10% > but still the same. > ######################## NIC statistics for port 0 > ######################## > RX-packets: 127 RX-errors: 145675959 RX-bytes: 16256 > TX-packets: 0 TX-errors: 0 TX-bytes: 0 > > ############################################################################ > > Can anyone gives me some comments? > Thank you. > > William (Cheng-Chun Tu) > > > > My system does not have numa, below is a full log at rx side: > bitmask: ff > Launching app > EAL: Detected lcore 0 as core 0 on socket 0 > EAL: Detected lcore 1 as core 1 on socket 0 > EAL: Detected lcore 2 as core 2 on socket 0 > EAL: Detected lcore 3 as core 3 on socket 0 > EAL: Detected lcore 4 as core 0 on socket 0 > EAL: Detected lcore 5 as core 1 on socket 0 > EAL: Detected lcore 6 as core 2 on socket 0 > EAL: Detected lcore 7 as core 3 on socket 0 > EAL: Setting up hugepage memory... > EAL: Ask a virtual area of 0x2097152 bytes > EAL: Virtual area found at 0x7f577ea00000 (size = 0x200000) > EAL: Ask a virtual area of 0x2097152 bytes > EAL: Virtual area found at 0x7f577e600000 (size = 0x200000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f577e000000 (size = 0x400000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f577da00000 (size = 0x400000) > EAL: Ask a virtual area of 0x8388608 bytes > EAL: Virtual area found at 0x7f577d000000 (size = 0x800000) > EAL: Ask a virtual area of 0x8388608 bytes > EAL: Virtual area found at 0x7f577c600000 (size = 0x800000) > EAL: Ask a virtual area of 0x12582912 bytes > EAL: Virtual area found at 0x7f577b800000 (size = 0xc00000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f577b200000 (size = 0x400000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f577ac00000 (size = 0x400000) > EAL: Ask a virtual area of 0x12582912 bytes > EAL: Virtual area found at 0x7f5779e00000 (size = 0xc00000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f5779800000 (size = 0x400000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f5779200000 (size = 0x400000) > EAL: Ask a virtual area of 0x12582912 bytes > EAL: Virtual area found at 0x7f5778400000 (size = 0xc00000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f5777e00000 (size = 0x400000) > EAL: Ask a virtual area of 0x12582912 bytes > EAL: Virtual area found at 0x7f5777000000 (size = 0xc00000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f5776a00000 (size = 0x400000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f5776400000 (size = 0x400000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f5775e00000 (size = 0x400000) > EAL: Ask a virtual area of 0x138412032 bytes > EAL: Virtual area found at 0x7f576d800000 (size = 0x8400000) > EAL: Ask a virtual area of 0x12582912 bytes > EAL: Virtual area found at 0x7f576ca00000 (size = 0xc00000) > EAL: Ask a virtual area of 0x4194304 bytes > EAL: Virtual area found at 0x7f576c400000 (size = 0x400000) > EAL: Requesting 128 pages of size 2MB from socket 0 > EAL: TSC frequency is ~3400025 KHz > EAL: Master core 0 is ready (tid=7ecef820) > EAL: Core 3 is ready (tid=6abfc700) > EAL: Core 6 is ready (tid=63fff700) > EAL: Core 4 is ready (tid=6a3fb700) > EAL: Core 7 is ready (tid=693f9700) > EAL: Core 5 is ready (tid=69bfa700) > EAL: Core 1 is ready (tid=6bbfe700) > EAL: Core 2 is ready (tid=6b3fd700) > EAL: PCI device 0000:01:00.0 on NUMA socket -1 > EAL: probe driver: 8086:10fb rte_ixgbe_pmd > EAL: PCI memory mapped at 0x7f577ec3c000 > EAL: PCI memory mapped at 0x7f577ed02000 > EAL: PCI device 0000:01:00.1 on NUMA socket -1 > EAL: probe driver: 8086:10fb rte_ixgbe_pmd > EAL: PCI memory mapped at 0x7f577e8fe000 > EAL: PCI memory mapped at 0x7f577e8fa000 > EAL: PCI device 0000:02:10.0 on NUMA socket -1 > EAL: probe driver: 8086:10ed rte_ixgbevf_pmd > EAL: 0000:02:10.0 not managed by UIO driver, skipping > EAL: PCI device 0000:02:10.2 on NUMA socket -1 > EAL: probe driver: 8086:10ed rte_ixgbevf_pmd > EAL: 0000:02:10.2 not managed by UIO driver, skipping > EAL: PCI device 0000:04:00.0 on NUMA socket -1 > EAL: probe driver: 8086:10d3 rte_em_pmd > EAL: 0000:04:00.0 not managed by UIO driver, skipping > EAL: PCI device 0000:05:00.0 on NUMA socket -1 > EAL: probe driver: 8086:10d3 rte_em_pmd > EAL: 0000:05:00.0 not managed by UIO driver, skipping > Interactive-mode selected > Configuring Port 0 (socket -1) > Configuring Port 1 (socket -1) > Checking link statuses... > Port 0 Link Up - speed 10000 Mbps - full-duplex > Port 1 Link Down > Done > testpmd> show port stats all > > ######################## NIC statistics for port 0 > ######################## > RX-packets: 127 RX-errors: 764471 RX-bytes: 16256 > TX-packets: 0 TX-errors: 0 TX-bytes: 0 > > ############################################################################ > >
