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| author |   Cong Wang <xiyou.wangcong@gmail.com> | 2025-05-18 15:20:38 -0700 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2025-05-22 11:16:51 +0200 |
| commit | c3572acffb751af65505511b847f628c872ffae0 (patch) | |
| tree | f1ddeec48ad65660bed9ce2fccdbd3c3b88d34c1 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() (diff) | |
| download | wireguard-linux-c3572acffb751af65505511b847f628c872ffae0.tar.xz wireguard-linux-c3572acffb751af65505511b847f628c872ffae0.zip | |
selftests/tc-testing: Add an HFSC qlen accounting test
This test reproduces a scenario where HFSC queue length and backlog accounting
can become inconsistent when a peek operation triggers a dequeue and possible
drop before the parent qdisc updates its counters. The test sets up a DRR root
qdisc with an HFSC class, netem, and blackhole children, and uses Scapy to
inject a packet. It helps to verify that HFSC correctly tracks qlen and backlog
even when packets are dropped during peek-induced dequeue.
Cc: Mingi Cho <mincho@theori.io>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250518222038.58538-3-xiyou.wangcong@gmail.com
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions