Since the "eal-intr-thread" was introduced in versions >18.05 there seems to be
a memory leak and processor utilization issue with the i40e driver.
Just running testpmd and watching the threads in top shows the issue:
2075 root 99 0 4110M 3063M CPU0 0 0:20 99.87% testpmd{eal-intr-thread}
2075 root 103 0 8453M 7409M CPU0 0 1:49 100.00% testpmd{eal-intr-thread}
2075 root 103 0 10G 9352M CPU0 0 2:28 100.00% testpmd{eal-intr-thread}
It will run until it crashes when the machine runs out of memory.
This is a box configured with only one port of a i40e enabled for DPDK and
using the latest 19.05 release. testpmd output is below.
Any ideas?
Thanks in advance,
Mit Matelske
root@fbl:~ # ./testpmd
EAL: Sysctl reports 8 cpus
EAL: Detected 8 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Contigmem driver has 2 buffers, each of size 1GB
EAL: WARNING! Base virtual address hint (0x100005000 != 0x8015b7000) not
respected!
EAL: This may cause issues with mapping memory into secondary processes
EAL: WARNING! Base virtual address hint (0x10000b000 != 0x800960000) not
respected!
EAL: This may cause issues with mapping memory into secondary processes
EAL: WARNING! Base virtual address hint (0x24000c000 != 0x840000000) not
respected!
EAL: This may cause issues with mapping memory into secondary processes
EAL: Mapped memory segment 0 @ 0x840000000: physaddr:0x140000000, len
1073741824
EAL: Mapped memory segment 1 @ 0x880000000: physaddr:0x180000000, len
1073741824
EAL: PCI device 0000:01:00.0 on NUMA socket 0
EAL: probe driver: 8086:10fb net_ixgbe
EAL: 0000:01:00.0 not managed by UIO driver, skipping
EAL: PCI device 0000:01:00.1 on NUMA socket 0
EAL: probe driver: 8086:10fb net_ixgbe
EAL: 0000:01:00.1 not managed by UIO driver, skipping
EAL: PCI device 0000:02:00.0 on NUMA socket 0
EAL: probe driver: 8086:1572 net_i40e
EAL: 0000:02:00.0 not managed by UIO driver, skipping
EAL: PCI device 0000:02:00.1 on NUMA socket 0
EAL: probe driver: 8086:1572 net_i40e
EAL: 0000:02:00.1 not managed by UIO driver, skipping
EAL: PCI device 0000:02:00.2 on NUMA socket 0
EAL: probe driver: 8086:1572 net_i40e
EAL: 0000:02:00.2 not managed by UIO driver, skipping
EAL: PCI device 0000:02:00.3 on NUMA socket 0
EAL: probe driver: 8086:1572 net_i40e
i40e_GLQF_reg_init(): i40e device 0000:02:00.3 changed global register
[0x002689a0]. original: 0x00000000, new: 0x00000029
i40e_GLQF_reg_init(): i40e device 0000:02:00.3 changed global register
[0x00268ca4]. original: 0x00001840, new: 0x00009420
i40e_aq_debug_write_global_register(): i40e device 0000:02:00.3 changed global
register [0x0026c7a0]. original: 0xa8, after: 0x28
EAL: PCI device 0000:03:00.0 on NUMA socket 0
EAL: probe driver: 8086:150e net_e1000_igb
EAL: 0000:03:00.0 not managed by UIO driver, skipping
EAL: PCI device 0000:03:00.1 on NUMA socket 0
EAL: probe driver: 8086:150e net_e1000_igb
EAL: 0000:03:00.1 not managed by UIO driver, skipping
EAL: PCI device 0000:04:00.0 on NUMA socket 0
EAL: probe driver: 8086:150e net_e1000_igb
EAL: 0000:04:00.0 not managed by UIO driver, skipping
EAL: PCI device 0000:04:00.1 on NUMA socket 0
EAL: probe driver: 8086:150e net_e1000_igb
EAL: 0000:04:00.1 not managed by UIO driver, skipping
testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=203456, size=2176,
socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Warning! port-topology=paired and odd forward ports number, the last port will
pair with itself.
Configuring Port 0 (socket 0)
Port 0: 00:90:0B:45:F7:C1
Checking link statuses...
Done
No commandline core given, start packet forwarding
io packet forwarding - ports=1 - cores=1 - streams=1 - NUMA support enabled, MP
allocation mode: native
Logical Core 1 (socket 0) forwards packets on 1 streams:
RX P=0/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00
io packet forwarding packets/burst=32
nb forwarding cores=1 - nb forwarding ports=1
port 0: RX queue number: 1 Tx queue number: 1
Rx offloads=0x0 Tx offloads=0x10000
RX queue: 0
RX desc=256 - RX free threshold=32
RX threshold registers: pthresh=8 hthresh=8 wthresh=0
RX Offloads=0x0
TX queue: 0
TX desc=256 - TX free threshold=32
TX threshold registers: pthresh=32 hthresh=0 wthresh=0
TX offloads=0x10000 - TX RS bit threshold=32
Press enter to exit
