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Bug #6715

closed

dpdk: NUMA warning on non-NUMA system

Added by Victor Julien 10 months ago. Updated 8 months ago.

Status:
Closed
Priority:
Normal
Assignee:
Lukas Sismis
Target version:
8.0.0-beta1
Affected Versions:
git master
Effort:
Difficulty:
Label:

Description

Seeing Notice: dpdk: 0000:01:00.0: unable to determine NIC's NUMA node, degraded performance can be expected. This is strange as this is a single CPU / single NUMA system:

$ lscpu
Architecture:            x86_64
...
NUMA:                    
  NUMA node(s):          1
  NUMA node0 CPU(s):     0-7
...

Subtasks 1 (0 open — 1 closed)

Bug #6828: dpdk: NUMA warning on non-NUMA system (7.0.x backport)ClosedLukas SismisActions
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 #1

Updated by Lukas Sismis 9 months ago

  • Status changed from Assigned to In Review
  • Target version changed from TBD to 8.0.0-beta1

Well, yes, this notice is printed out when the DPDK cannot determine the NUMA node through rte_eth_dev_socket_id function.

It is possible to restrain the output to only systems with multiple NUMA nodes.
But I guess it is good to keep in mind that the more performance logs and conditions we add, the more peculiar it might be to maintain it.

I tried to locally retrieve the NUMA node of one of the interface I have locally installed - but it also returns -1

cat /sys/class/net/wlp0s20f3/device/numa_node
-1

The check is now performed only on multi-numa systems:

https://github.com/OISF/suricata/pull/10562

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 #3

Updated by Lukas Sismis 9 months ago

  • Label Needs backport to 7.0 added
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 #4

Updated by OISF Ticketbot 9 months ago

  • Subtask #6828 added
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 #5

Updated by OISF Ticketbot 9 months ago

  • Label deleted (Needs backport to 7.0)
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 #6

Updated by Lukas Sismis 8 months ago

  • Status changed from In Review to Resolved
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 #7

Updated by Lukas Sismis 8 months ago

  • Status changed from Resolved to Closed
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