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| author | Philo Lu <lulie@linux.alibaba.com> | 2024-04-21 07:20:09 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-04-25 10:52:12 +0300 |
| commit | 2bf90a57f0e682872c5cfb66ffa45e432bb9c7ae (patch) | |
| tree | 3e523116c5e7de8d0a426fa022f7a4c13966e453 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 14b5fb2145caeb909a1cd57d9cd5e0c3cd005642 (diff) | |
| download | linux-2bf90a57f0e682872c5cfb66ffa45e432bb9c7ae.tar.xz | |
tcp: update sacked after tracepoint in __tcp_retransmit_skb
Marking TCP_SKB_CB(skb)->sacked with TCPCB_EVER_RETRANS after the
traceopint (trace_tcp_retransmit_skb), then we can get the
retransmission efficiency by counting skbs w/ and w/o TCPCB_EVER_RETRANS
mark in this tracepoint.
We have discussed to achieve this with BPF_SOCK_OPS in [0], and using
tracepoint is thought to be a better solution.
[0]
https://lore.kernel.org/all/20240417124622.35333-1-lulie@linux.alibaba.com/
Signed-off-by: Philo Lu <lulie@linux.alibaba.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions