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(parent: 9e5b816) | patch
net: snmp: add statistics for tcp small queue check
authorMenglong Dong <imagedong@tencent.com>
Sun, 28 Nov 2021 06:01:02 +0000 (14:01 +0800)
committerDavid S. Miller <davem@davemloft.net>
Mon, 29 Nov 2021 13:05:47 +0000 (13:05 +0000)
commit91f7f2deb22682bfcdc959fe7ef6c4d683e2927f
treed5f96508b40bed44e1256c6097420adbccd9128etree | snapshot
parent9e5b816eff6742446c90834bd18a2c41d4921718commit | diff
net: snmp: add statistics for tcp small queue check

Once tcp small queue check failed in tcp_small_queue_check(), the
throughput of tcp will be limited, and it's hard to distinguish
whether it is out of tcp congestion control.

Add statistics of LINUX_MIB_TCPSMALLQUEUEFAILURE for this scene.

Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/uapi/linux/snmp.h diff | blob | history
net/ipv4/proc.c diff | blob | history
net/ipv4/tcp_output.c diff | blob | history
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