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cat xxx.txt  | tr , ' ' | grep keepalive | awk '{ sum+=$1 } END {print sum/160}'

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<?xml version="1.0" encoding="UTF-8"?>
<!-- vi: set et smarttab sw=2 tabstop=2: -->
<!--
 Copyright (c) 2014, 2015 Cisco Systems, Inc. and others.  All rights reserved.

 This program and the accompanying materials are made available under the
 terms of the Eclipse Public License v1.0 which accompanies this distribution,
 and is available at http://www.eclipse.org/legal/epl-v10.html
-->
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"

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function string_ops:string (val) %{
  strlcpy (STAP_RETVALUE, (char*)STAP_ARG_val, MAXSTRINGLEN);
%}

probe kernel.function("__dev_queue_xmit") {
    if (execname() =~ "keepalived")  {
        printf("__dev_queue_xmit %d %s(%d/%d) %s\n", gettimeofday_us(), execname(), pid(), cpu(), $$vars);
        i = 0;
        printf("dump begin, skb->gso %d\n", @cast($skb->head+$skb->end, "skb_shared_info", "")->gso_size);
        for (; i< 14; i++) {

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BEGIN {
    net2req["id1"] = "req1"
    allreq["req1"] = "req1"
}

# 1. found received rpc named 'network_sync', extracted req-id and store it to associative arrays.
#    print the line
# 2. found arg dropped for the req-id, print the line
# 3. found notify agen add-fdb, delete the req-id in the associative array, print the line
{

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nova host-list | grep compute | awk '{print $2}' | sed 's/-/\./g'

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cat hostlist | grep compute | awk '{print $2}'  | xargs -I X > all_drops.txt 2>&1 ssh X -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 1046 source check-qdisc.sh 

BTW:

using the same command while using SCP to upload the script to each host.

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# ns0
ip netns del natns0
ip netns add natns0
ip netns exec natns0 ip link set lo up
ip link add natp0 type veth peer name natp0p
ip link set natp0 netns natns0
ip link set natp0p up
ip netns exec natns0 ip link set natp0 up
ip netns exec natns0 ip link set natp0 address 80:88:88:88:88:88
ip netns exec natns0 ip addr add 10.1.1.1/24 dev natp0

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package com.netease.cns.proton.agent.dhcp

import akka.actor.{Actor, ActorLogging}
import com.netease.cns.proton.agent.dhcp.DHCPPktRxActor.PcapRxPacket
import org.pcap4j.core.PcapNetworkInterface.PromiscuousMode
import org.pcap4j.core.Pcaps
import org.pcap4j.packet.Packet

object DHCPPktRxActor {
  // TODO: define a packet which will be processed by each NetworkDHCPActor.

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#################################################
# Sample OpenVPN 2.0 config file for            #
# multi-client server.                          #
#                                               #
# This file is for the server side              #
# of a many-clients <-> one-server              #
# OpenVPN configuration.                        #
#                                               #
# OpenVPN also supports                         #
# single-machine <-> single-machine             #

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function string_ops:string (val) %{
  strlcpy (STAP_RETVALUE, (char*)STAP_ARG_val, MAXSTRINGLEN);
%}

probe kernel.function("udp_gro_receive") {
    if (cpu() == 0) {
        printf("udp_gro_receive %d %s(%d/%d) %s %d, %d, %d\n", gettimeofday_us(), execname(), pid(), cpu(), $$vars, $skb->ip_summed, @cast($skb->cb, "struct napi_gro_cb")->csum_cnt, @cast($skb->cb, "struct napi_gro_cb")->csum_valid);
        print_backtrace();
    }
}