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>
This commit is contained in:
Menglong Dong
2021-11-28 14:01:02 +08:00
committed by David S. Miller
parent e9538f8270
commit aeeecb8891
3 changed files with 6 additions and 1 deletions

View File

@@ -292,6 +292,7 @@ enum
LINUX_MIB_TCPDSACKIGNOREDDUBIOUS, /* TCPDSACKIgnoredDubious */
LINUX_MIB_TCPMIGRATEREQSUCCESS, /* TCPMigrateReqSuccess */
LINUX_MIB_TCPMIGRATEREQFAILURE, /* TCPMigrateReqFailure */
LINUX_MIB_TCPSMALLQUEUEFAILURE, /* TCPSmallQueueFailure */
__LINUX_MIB_MAX
};