Searched hist:ce8299b6f76f28326fedce2b4da90888bd97eab2 (Results 1 – 3 of 3) sorted by relevance
/linux/include/uapi/linux/ |
H A D | snmp.h | diff ce8299b6f76f28326fedce2b4da90888bd97eab2 Wed Dec 01 04:32:46 CET 2021 Eric Dumazet <edumazet@google.com> Revert "net: snmp: add statistics for tcp small queue check"
This reverts commit aeeecb889165617a841e939117f9a8095d0e7d80.
The new SNMP variable (TCPSmallQueueFailure) can be incremented for good reasons, even on a 100Gbit single TCP_STREAM flow.
If we really wanted to ease driver debugging [1], this would require something more sophisticated.
[1] Usually, if a driver is delaying TX completions too much, this can lead to stalls in TCP output. Various work arounds have been used in the past, like skb_orphan() in ndo_start_xmit().
Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Menglong Dong <imagedong@tencent.com> Link: https://lore.kernel.org/r/20211201033246.2826224-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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/linux/net/ipv4/ |
H A D | proc.c | diff ce8299b6f76f28326fedce2b4da90888bd97eab2 Wed Dec 01 04:32:46 CET 2021 Eric Dumazet <edumazet@google.com> Revert "net: snmp: add statistics for tcp small queue check"
This reverts commit aeeecb889165617a841e939117f9a8095d0e7d80.
The new SNMP variable (TCPSmallQueueFailure) can be incremented for good reasons, even on a 100Gbit single TCP_STREAM flow.
If we really wanted to ease driver debugging [1], this would require something more sophisticated.
[1] Usually, if a driver is delaying TX completions too much, this can lead to stalls in TCP output. Various work arounds have been used in the past, like skb_orphan() in ndo_start_xmit().
Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Menglong Dong <imagedong@tencent.com> Link: https://lore.kernel.org/r/20211201033246.2826224-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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H A D | tcp_output.c | diff ce8299b6f76f28326fedce2b4da90888bd97eab2 Wed Dec 01 04:32:46 CET 2021 Eric Dumazet <edumazet@google.com> Revert "net: snmp: add statistics for tcp small queue check"
This reverts commit aeeecb889165617a841e939117f9a8095d0e7d80.
The new SNMP variable (TCPSmallQueueFailure) can be incremented for good reasons, even on a 100Gbit single TCP_STREAM flow.
If we really wanted to ease driver debugging [1], this would require something more sophisticated.
[1] Usually, if a driver is delaying TX completions too much, this can lead to stalls in TCP output. Various work arounds have been used in the past, like skb_orphan() in ndo_start_xmit().
Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Menglong Dong <imagedong@tencent.com> Link: https://lore.kernel.org/r/20211201033246.2826224-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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