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authorEric Dumazet <[email protected]>2021-11-30 19:32:46 -0800
committerJakub Kicinski <[email protected]>2021-12-01 19:06:09 -0800
commitce8299b6f76f28326fedce2b4da90888bd97eab2 (patch)
treeee9c848444134a92a77dfab024e3c7b6c14183e2 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py
parent0dc1df05988820a5f51621ca373988082e155e53 (diff)
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 <[email protected]> Cc: Menglong Dong <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
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