136 lines
2.8 KiB
C++
136 lines
2.8 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2006 INRIA
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#include "ns3/wall-clock-ms.h"
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#include "ns3/packet.h"
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#include "ns3/chunk-constant-data.h"
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#include "ns3/chunk-udp.h"
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#include "ns3/chunk-ipv4.h"
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#include <iostream>
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using namespace ns3;
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static void
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benchPtrA (uint32_t n)
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{
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ChunkConstantData data = ChunkConstantData (2000, 1);
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ChunkUdp udp;
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ChunkIpv4 ipv4;
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for (uint32_t i = 0; i < n; i++) {
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Packet p;
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p.add (&data);
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p.add (&udp);
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p.add (&ipv4);
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Packet o = p;
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o.peek (&ipv4);
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o.remove (&ipv4);
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o.peek (&udp);
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o.remove (&udp);
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o.peek (&data);
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o.remove (&data);
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}
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}
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static void
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benchPtrB (uint32_t n)
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{
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ChunkConstantData data = ChunkConstantData (2000, 1);
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ChunkUdp udp;
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ChunkIpv4 ipv4;
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for (uint32_t i = 0; i < n; i++) {
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Packet p;
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p.add (&data);
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p.add (&udp);
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p.add (&ipv4);
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}
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}
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static void
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ptrC2 (Packet p)
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{
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ChunkConstantData data = ChunkConstantData (2000, 1);
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ChunkUdp udp;
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p.peek (&udp);
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p.remove (&udp);
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p.peek (&data);
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p.remove (&data);
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}
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static void
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ptrC1 (Packet p)
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{
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ChunkIpv4 ipv4;
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p.peek (&ipv4);
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p.remove (&ipv4);
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ptrC2 (p);
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}
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static void
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benchPtrC (uint32_t n)
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{
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ChunkConstantData data = ChunkConstantData (2000, 1);
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ChunkUdp udp;
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ChunkIpv4 ipv4;
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for (uint32_t i = 0; i < n; i++) {
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Packet p;
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p.add (&data);
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p.add (&udp);
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p.add (&ipv4);
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ptrC1 (p);
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}
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}
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static void
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runBench (void (*bench) (uint32_t), uint32_t n, char const *name)
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{
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WallClockMs time;
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time.start ();
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(*bench) (n);
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unsigned long long deltaMs = time.end ();
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double ps = n;
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ps *= 1000;
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ps /= deltaMs;
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std::cout << name<<"=" << ps << " packets/s" << std::endl;
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}
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int main (int argc, char *argv[])
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{
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uint32_t n = 0;
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while (argc > 0) {
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if (strncmp ("--n=", argv[0],strlen ("--n=")) == 0) {
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char const *nAscii = argv[0] + strlen ("--n=");
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n = atoi (nAscii);
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}
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argc--;
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argv++;
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}
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runBench (&benchPtrA, n, "a");
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runBench (&benchPtrB, n, "b");
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runBench (&benchPtrC, n, "c");
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return 0;
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}
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