Documentation/networking/net_cachelines/snmp.rst

   1 .. SPDX-License-Identifier: GPL-2.0
   2 .. Copyright (C) 2023 Google LLC
   3
   4 ===========================================
   5 netns_ipv4 enum fast path usage breakdown
   6 ===========================================
   7
   8 Type           Name                                  fastpath_tx_access  fastpath_rx_access  comment
   9 ..enum
  10 unsigned_long  LINUX_MIB_TCPKEEPALIVE                write_mostly        -                   tcp_keepalive_timer
  11 unsigned_long  LINUX_MIB_DELAYEDACKS                 write_mostly        -                   tcp_delack_timer_handler,tcp_delack_timer
  12 unsigned_long  LINUX_MIB_DELAYEDACKLOCKED            write_mostly        -                   tcp_delack_timer_handler,tcp_delack_timer
  13 unsigned_long  LINUX_MIB_TCPAUTOCORKING              write_mostly        -                   tcp_push,tcp_sendmsg_locked
  14 unsigned_long  LINUX_MIB_TCPFROMZEROWINDOWADV        write_mostly        -                   tcp_select_window,tcp_transmit-skb
  15 unsigned_long  LINUX_MIB_TCPTOZEROWINDOWADV          write_mostly        -                   tcp_select_window,tcp_transmit-skb
  16 unsigned_long  LINUX_MIB_TCPWANTZEROWINDOWADV        write_mostly        -                   tcp_select_window,tcp_transmit-skb
  17 unsigned_long  LINUX_MIB_TCPORIGDATASENT             write_mostly        -                   tcp_write_xmit
  18 unsigned_long  LINUX_MIB_TCPHPHITS                   -                   write_mostly        tcp_rcv_established,tcp_v4_do_rcv,tcp_v6_do_rcv
  19 unsigned_long  LINUX_MIB_TCPRCVCOALESCE              -                   write_mostly        tcp_try_coalesce,tcp_queue_rcv,tcp_rcv_established
  20 unsigned_long  LINUX_MIB_TCPPUREACKS                 -                   write_mostly        tcp_ack,tcp_rcv_established
  21 unsigned_long  LINUX_MIB_TCPHPACKS                   -                   write_mostly        tcp_ack,tcp_rcv_established
  22 unsigned_long  LINUX_MIB_TCPDELIVERED                -                   write_mostly        tcp_newly_delivered,tcp_ack,tcp_rcv_established
  23 unsigned_long  LINUX_MIB_SYNCOOKIESSENT
  24 unsigned_long  LINUX_MIB_SYNCOOKIESRECV
  25 unsigned_long  LINUX_MIB_SYNCOOKIESFAILED
  26 unsigned_long  LINUX_MIB_EMBRYONICRSTS
  27 unsigned_long  LINUX_MIB_PRUNECALLED
  28 unsigned_long  LINUX_MIB_RCVPRUNED
  29 unsigned_long  LINUX_MIB_OFOPRUNED
  30 unsigned_long  LINUX_MIB_OUTOFWINDOWICMPS
  31 unsigned_long  LINUX_MIB_LOCKDROPPEDICMPS
  32 unsigned_long  LINUX_MIB_ARPFILTER
  33 unsigned_long  LINUX_MIB_TIMEWAITED
  34 unsigned_long  LINUX_MIB_TIMEWAITRECYCLED
  35 unsigned_long  LINUX_MIB_TIMEWAITKILLED
  36 unsigned_long  LINUX_MIB_PAWSACTIVEREJECTED
  37 unsigned_long  LINUX_MIB_PAWSESTABREJECTED
  38 unsigned_long  LINUX_MIB_DELAYEDACKLOST
  39 unsigned_long  LINUX_MIB_LISTENOVERFLOWS
  40 unsigned_long  LINUX_MIB_LISTENDROPS
  41 unsigned_long  LINUX_MIB_TCPRENORECOVERY
  42 unsigned_long  LINUX_MIB_TCPSACKRECOVERY
  43 unsigned_long  LINUX_MIB_TCPSACKRENEGING
  44 unsigned_long  LINUX_MIB_TCPSACKREORDER
  45 unsigned_long  LINUX_MIB_TCPRENOREORDER
  46 unsigned_long  LINUX_MIB_TCPTSREORDER
  47 unsigned_long  LINUX_MIB_TCPFULLUNDO
  48 unsigned_long  LINUX_MIB_TCPPARTIALUNDO
  49 unsigned_long  LINUX_MIB_TCPDSACKUNDO
  50 unsigned_long  LINUX_MIB_TCPLOSSUNDO
  51 unsigned_long  LINUX_MIB_TCPLOSTRETRANSMIT
  52 unsigned_long  LINUX_MIB_TCPRENOFAILURES
  53 unsigned_long  LINUX_MIB_TCPSACKFAILURES
  54 unsigned_long  LINUX_MIB_TCPLOSSFAILURES
  55 unsigned_long  LINUX_MIB_TCPFASTRETRANS
  56 unsigned_long  LINUX_MIB_TCPSLOWSTARTRETRANS
  57 unsigned_long  LINUX_MIB_TCPTIMEOUTS
  58 unsigned_long  LINUX_MIB_TCPLOSSPROBES
  59 unsigned_long  LINUX_MIB_TCPLOSSPROBERECOVERY
  60 unsigned_long  LINUX_MIB_TCPRENORECOVERYFAIL
  61 unsigned_long  LINUX_MIB_TCPSACKRECOVERYFAIL
  62 unsigned_long  LINUX_MIB_TCPRCVCOLLAPSED
  63 unsigned_long  LINUX_MIB_TCPDSACKOLDSENT
  64 unsigned_long  LINUX_MIB_TCPDSACKOFOSENT
  65 unsigned_long  LINUX_MIB_TCPDSACKRECV
  66 unsigned_long  LINUX_MIB_TCPDSACKOFORECV
  67 unsigned_long  LINUX_MIB_TCPABORTONDATA
  68 unsigned_long  LINUX_MIB_TCPABORTONCLOSE
  69 unsigned_long  LINUX_MIB_TCPABORTONMEMORY
  70 unsigned_long  LINUX_MIB_TCPABORTONTIMEOUT
  71 unsigned_long  LINUX_MIB_TCPABORTONLINGER
  72 unsigned_long  LINUX_MIB_TCPABORTFAILED
  73 unsigned_long  LINUX_MIB_TCPMEMORYPRESSURES
  74 unsigned_long  LINUX_MIB_TCPMEMORYPRESSURESCHRONO
  75 unsigned_long  LINUX_MIB_TCPSACKDISCARD
  76 unsigned_long  LINUX_MIB_TCPDSACKIGNOREDOLD
  77 unsigned_long  LINUX_MIB_TCPDSACKIGNOREDNOUNDO
  78 unsigned_long  LINUX_MIB_TCPSPURIOUSRTOS
  79 unsigned_long  LINUX_MIB_TCPMD5NOTFOUND
  80 unsigned_long  LINUX_MIB_TCPMD5UNEXPECTED
  81 unsigned_long  LINUX_MIB_TCPMD5FAILURE
  82 unsigned_long  LINUX_MIB_SACKSHIFTED
  83 unsigned_long  LINUX_MIB_SACKMERGED
  84 unsigned_long  LINUX_MIB_SACKSHIFTFALLBACK
  85 unsigned_long  LINUX_MIB_TCPBACKLOGDROP
  86 unsigned_long  LINUX_MIB_PFMEMALLOCDROP
  87 unsigned_long  LINUX_MIB_TCPMINTTLDROP
  88 unsigned_long  LINUX_MIB_TCPDEFERACCEPTDROP
  89 unsigned_long  LINUX_MIB_IPRPFILTER
  90 unsigned_long  LINUX_MIB_TCPTIMEWAITOVERFLOW
  91 unsigned_long  LINUX_MIB_TCPREQQFULLDOCOOKIES
  92 unsigned_long  LINUX_MIB_TCPREQQFULLDROP
  93 unsigned_long  LINUX_MIB_TCPRETRANSFAIL
  94 unsigned_long  LINUX_MIB_TCPBACKLOGCOALESCE
  95 unsigned_long  LINUX_MIB_TCPOFOQUEUE
  96 unsigned_long  LINUX_MIB_TCPOFODROP
  97 unsigned_long  LINUX_MIB_TCPOFOMERGE
  98 unsigned_long  LINUX_MIB_TCPCHALLENGEACK
  99 unsigned_long  LINUX_MIB_TCPSYNCHALLENGE
 100 unsigned_long  LINUX_MIB_TCPFASTOPENACTIVE
 101 unsigned_long  LINUX_MIB_TCPFASTOPENACTIVEFAIL
 102 unsigned_long  LINUX_MIB_TCPFASTOPENPASSIVE
 103 unsigned_long  LINUX_MIB_TCPFASTOPENPASSIVEFAIL
 104 unsigned_long  LINUX_MIB_TCPFASTOPENLISTENOVERFLOW
 105 unsigned_long  LINUX_MIB_TCPFASTOPENCOOKIEREQD
 106 unsigned_long  LINUX_MIB_TCPFASTOPENBLACKHOLE
 107 unsigned_long  LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES
 108 unsigned_long  LINUX_MIB_BUSYPOLLRXPACKETS
 109 unsigned_long  LINUX_MIB_TCPSYNRETRANS
 110 unsigned_long  LINUX_MIB_TCPHYSTARTTRAINDETECT
 111 unsigned_long  LINUX_MIB_TCPHYSTARTTRAINCWND
 112 unsigned_long  LINUX_MIB_TCPHYSTARTDELAYDETECT
 113 unsigned_long  LINUX_MIB_TCPHYSTARTDELAYCWND
 114 unsigned_long  LINUX_MIB_TCPACKSKIPPEDSYNRECV
 115 unsigned_long  LINUX_MIB_TCPACKSKIPPEDPAWS
 116 unsigned_long  LINUX_MIB_TCPACKSKIPPEDSEQ
 117 unsigned_long  LINUX_MIB_TCPACKSKIPPEDFINWAIT2
 118 unsigned_long  LINUX_MIB_TCPACKSKIPPEDTIMEWAIT
 119 unsigned_long  LINUX_MIB_TCPACKSKIPPEDCHALLENGE
 120 unsigned_long  LINUX_MIB_TCPWINPROBE
 121 unsigned_long  LINUX_MIB_TCPMTUPFAIL
 122 unsigned_long  LINUX_MIB_TCPMTUPSUCCESS
 123 unsigned_long  LINUX_MIB_TCPDELIVEREDCE
 124 unsigned_long  LINUX_MIB_TCPACKCOMPRESSED
 125 unsigned_long  LINUX_MIB_TCPZEROWINDOWDROP
 126 unsigned_long  LINUX_MIB_TCPRCVQDROP
 127 unsigned_long  LINUX_MIB_TCPWQUEUETOOBIG
 128 unsigned_long  LINUX_MIB_TCPFASTOPENPASSIVEALTKEY
 129 unsigned_long  LINUX_MIB_TCPTIMEOUTREHASH
 130 unsigned_long  LINUX_MIB_TCPDUPLICATEDATAREHASH
 131 unsigned_long  LINUX_MIB_TCPDSACKRECVSEGS
 132 unsigned_long  LINUX_MIB_TCPDSACKIGNOREDDUBIOUS
 133 unsigned_long  LINUX_MIB_TCPMIGRATEREQSUCCESS
 134 unsigned_long  LINUX_MIB_TCPMIGRATEREQFAILURE
 135 unsigned_long  __LINUX_MIB_MAX