[dpdk-users] LPM6 delete function optimization.

[sid tow <siddy_tow@yahoo.com>]

Hello All,
I have started using the dpdk library mainly LPM6. I noticed that the delete function does a memset and reconfigure of all the routes back into the table. This will not scale if I were to have like 10K routes. Do I expect to see some performance improvisation in future releases or can I get some tips on what I can do to optimize it myself?
Thank you in advance.
Syed
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Subject: [dpdk-users] Problems running test-pipeline.
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Hello, i am new with DPDK and i am trying to run the test-pipeline program.

Here is the output when i run it:

./testpipeline -c 0x07 -- -p 0x01
EAL: Detected lcore 0 as core 0 on socket 0
EAL: Detected lcore 1 as core 0 on socket 0
EAL: Detected lcore 2 as core 1 on socket 0
EAL: Detected lcore 3 as core 1 on socket 0
EAL: Detected lcore 4 as core 2 on socket 0
EAL: Detected lcore 5 as core 2 on socket 0
EAL: Detected lcore 6 as core 3 on socket 0
EAL: Detected lcore 7 as core 3 on socket 0
EAL: Support maximum 128 logical core(s) by configuration.
EAL: Detected 8 lcore(s)
EAL: VFIO modules not all loaded, skip VFIO support...
EAL: Setting up physically contiguous memory...
EAL: Ask a virtual area of 0x7000000 bytes
EAL: Virtual area found at 0x7f6689400000 (size = 0x7000000)
EAL: Ask a virtual area of 0x1c00000 bytes
EAL: Virtual area found at 0x7f6687600000 (size = 0x1c00000)
EAL: Ask a virtual area of 0x4000000 bytes
EAL: Virtual area found at 0x7f6683400000 (size = 0x4000000)
EAL: Ask a virtual area of 0x1800000 bytes
EAL: Virtual area found at 0x7f6681a00000 (size = 0x1800000)
EAL: Ask a virtual area of 0x200000 bytes
EAL: Virtual area found at 0x7f6681600000 (size = 0x200000)
EAL: Ask a virtual area of 0x11800000 bytes
EAL: Virtual area found at 0x7f666fc00000 (size = 0x11800000)
EAL: Ask a virtual area of 0x200000 bytes
EAL: Virtual area found at 0x7f666f800000 (size = 0x200000)
EAL: Requesting 256 pages of size 2MB from socket 0
EAL: TSC frequency is ~1795851 KHz
EAL: Master lcore 0 is ready (tid=91f13940;cpuset=[0])
EAL: lcore 1 is ready (tid=6f7ff700;cpuset=[1])
EAL: lcore 2 is ready (tid=6effe700;cpuset=[2])
EAL: PCI device 0000:01:00.0 on NUMA socket -1
EAL:   probe driver: 8086:1533 rte_igb_pmd
EAL:   PCI memory mapped at 0x7f6690400000
EAL:   PCI memory mapped at 0x7f6690500000
PMD: eth_igb_dev_init(): port_id 0 vendorID=0x8086 deviceID=0x1533
EAL: PCI device 0000:02:00.0 on NUMA socket -1
EAL:   probe driver: 8086:1533 rte_igb_pmd
EAL:   Not managed by a supported kernel driver, skipped
USER1: Creating the mbuf pool ...
USER1: Initializing NIC port 0 ...
PMD: eth_igb_rx_queue_setup(): sw_ring=0x7f666f936dc0
hw_ring=0x7f666f937200 dma_addr=0x208337200
PMD: eth_igb_tx_queue_setup(): To improve 1G driver performance, consider
setting the TX WTHRESH value to 4, 8, or 16.
PMD: eth_igb_tx_queue_setup(): sw_ring=0x7f666f924c40
hw_ring=0x7f666f926c80 dma_addr=0x208326c80
PMD: eth_igb_start(): <<
USER1: Port 0 (0 Gbps) DOWN
PANIC in app_ports_check_link():
Some NIC ports are DOWN
6: [./testpipeline() [0x42b7b3]]
5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
[0x7f6691038ec5]]
4: [./testpipeline(main+0x34) [0x42a2f4]]
3: [./testpipeline(app_init+0x336) [0x42c0a6]]
2: [./testpipeline(__rte_panic+0xc9) [0x424d9e]]
1: [./testpipeline(rte_dump_stack+0x1a) [0x492b8a]
$

Here is the nic bind info

$ dpdk_nic_bind -s

Network devices using DPDK-compatible driver
============================================
0000:01:00.0 'I210 Gigabit Network Connection' drv=igb_uio unused=

Network devices using kernel driver
===================================
0000:00:19.0 'Ethernet Connection I218-LM' if=eth2 drv=e1000e
unused=igb_uio *Active*
0000:02:00.0 'I210 Gigabit Network Connection' if=eth0 drv=igb
unused=igb_uio

Other network devices
=====================
<none>

Changing port mask to 0x04 or any other value gives following error:

./testpipeline -c 0x07 -- -p 0x04
EAL: Detected lcore 0 as core 0 on socket 0
EAL: Detected lcore 1 as core 0 on socket 0
EAL: Detected lcore 2 as core 1 on socket 0
EAL: Detected lcore 3 as core 1 on socket 0
EAL: Detected lcore 4 as core 2 on socket 0
EAL: Detected lcore 5 as core 2 on socket 0
EAL: Detected lcore 6 as core 3 on socket 0
EAL: Detected lcore 7 as core 3 on socket 0
EAL: Support maximum 128 logical core(s) by configuration.
EAL: Detected 8 lcore(s)
EAL: VFIO modules not all loaded, skip VFIO support...
EAL: Setting up physically contiguous memory...
EAL: Ask a virtual area of 0x7000000 bytes
EAL: Virtual area found at 0x7fceeb000000 (size = 0x7000000)
EAL: Ask a virtual area of 0x1c00000 bytes
EAL: Virtual area found at 0x7fcee9200000 (size = 0x1c00000)
EAL: Ask a virtual area of 0x4000000 bytes
EAL: Virtual area found at 0x7fcee5000000 (size = 0x4000000)
EAL: Ask a virtual area of 0x1800000 bytes
EAL: Virtual area found at 0x7fcee3600000 (size = 0x1800000)
EAL: Ask a virtual area of 0x200000 bytes
EAL: Virtual area found at 0x7fcee3200000 (size = 0x200000)
EAL: Ask a virtual area of 0x11800000 bytes
EAL: Virtual area found at 0x7fced1800000 (size = 0x11800000)
EAL: Ask a virtual area of 0x200000 bytes
EAL: Virtual area found at 0x7fced1400000 (size = 0x200000)
EAL: Requesting 256 pages of size 2MB from socket 0
EAL: TSC frequency is ~1795851 KHz
EAL: Master lcore 0 is ready (tid=f3c37940;cpuset=[0])
EAL: lcore 1 is ready (tid=d13ff700;cpuset=[1])
EAL: lcore 2 is ready (tid=d0bfe700;cpuset=[2])
EAL: PCI device 0000:01:00.0 on NUMA socket -1
EAL:   probe driver: 8086:1533 rte_igb_pmd
EAL:   PCI memory mapped at 0x7fcef2000000
EAL:   PCI memory mapped at 0x7fcef2100000
PMD: eth_igb_dev_init(): port_id 0 vendorID=0x8086 deviceID=0x1533
EAL: PCI device 0000:02:00.0 on NUMA socket -1
EAL:   probe driver: 8086:1533 rte_igb_pmd
EAL:   Not managed by a supported kernel driver, skipped
USER1: Creating the mbuf pool ...
USER1: Initializing NIC port 2 ...
PANIC in app_init_ports():
Cannot init NIC port 2 (-22)
6: [./testpipeline() [0x42b7b3]]
5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
[0x7fcef2d5cec5]]
4: [./testpipeline(main+0x34) [0x42a2f4]]
3: [./testpipeline(app_init+0x3a2) [0x42c112]]
2: [./testpipeline(__rte_panic+0xc9) [0x424d9e]]
1: [./testpipeline(rte_dump_stack+0x1a) [0x492b8a]]

What i'm doing wrong here ?

There is probably some configuration step missing or misconfiguration but i
could not figure out what it is.

Thank you in advance.