Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
probe::linuxmib.TCPMemoryPressures - Count of times memory pressure was used
SYNOPSIS
linuxmib.TCPMemoryPressures
VALUES
sk
Pointer to the struct sock being acted on
op
Value to be added to the counter (default value of 1)
DESCRIPTION
The packet pointed to by skb is filtered by the function linuxmib_filter_key. If the packet passes the
filter is is counted in the global TCPMemoryPressures (equivalent to SNMP's MIB
LINUX_MIB_TCPMEMORYPRESSURES)
SystemTap Tapset Reference March 2016 PROBE::LINUXMIB.TC(3stap)