author | Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
Thu, 16 Oct 2008 12:44:25 +0200 | |
changeset 3750 | 79a21524565f |
parent 3553 | 065488d0420c |
child 4502 | 07d34c0d8d18 |
permissions | -rw-r--r-- |
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/* -*- 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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* |
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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/system-wall-clock-ms.h" |
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#include "ns3/packet.h" |
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#include "ns3/packet-metadata.h" |
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#include <iostream> |
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#include <sstream> |
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#include <string> |
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#include <stdlib.h> // for exit () |
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using namespace ns3; |
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template <int N> |
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class BenchHeader : public Header |
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{ |
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public: |
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BenchHeader (); |
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bool IsOk (void) const; |
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static TypeId GetTypeId (void); |
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virtual TypeId GetInstanceTypeId (void) const; |
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virtual void Print (std::ostream &os) const; |
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virtual uint32_t GetSerializedSize (void) const; |
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virtual void Serialize (Buffer::Iterator start) const; |
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virtual uint32_t Deserialize (Buffer::Iterator start); |
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private: |
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static std::string GetTypeName (void); |
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bool m_ok; |
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}; |
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template <int N> |
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BenchHeader<N>::BenchHeader () |
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: m_ok (false) |
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{} |
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template <int N> |
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bool |
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BenchHeader<N>::IsOk (void) const |
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return m_ok; |
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} |
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template <int N> |
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std::string |
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BenchHeader<N>::GetTypeName (void) |
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std::ostringstream oss; |
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oss << "ns3::BenchHeader<" << N << ">"; |
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return oss.str (); |
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} |
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template <int N> |
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TypeId |
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BenchHeader<N>::GetTypeId (void) |
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{ |
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static TypeId tid = TypeId (GetTypeName ().c_str ()) |
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.SetParent<Header> () |
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; |
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return tid; |
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} |
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template <int N> |
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TypeId |
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BenchHeader<N>::GetInstanceTypeId (void) const |
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return GetTypeId (); |
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} |
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template <int N> |
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void |
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BenchHeader<N>::Print (std::ostream &os) const |
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{ |
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NS_ASSERT (false); |
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} |
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template <int N> |
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uint32_t |
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BenchHeader<N>::GetSerializedSize (void) const |
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return N; |
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} |
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template <int N> |
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void |
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BenchHeader<N>::Serialize (Buffer::Iterator start) const |
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start.WriteU8 (N, N); |
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} |
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template <int N> |
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uint32_t |
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BenchHeader<N>::Deserialize (Buffer::Iterator start) |
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{ |
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m_ok = true; |
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for (int i = 0; i < N; i++) |
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if (start.ReadU8 () != N) |
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m_ok = false; |
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} |
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114 |
} |
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115 |
return N; |
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116 |
} |
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117 |
|
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118 |
template <int N> |
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class BenchTag : public Tag |
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{ |
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public: |
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static std::string GetName (void) { |
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std::ostringstream oss; |
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oss << "anon::BenchTag<" << N << ">"; |
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return oss.str (); |
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126 |
} |
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static TypeId GetTypeId (void) { |
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static TypeId tid = TypeId (GetName ().c_str ()) |
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.SetParent<Tag> () |
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.AddConstructor<BenchTag > () |
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.HideFromDocumentation () |
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; |
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return tid; |
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134 |
} |
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virtual TypeId GetInstanceTypeId (void) const { |
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return GetTypeId (); |
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137 |
} |
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virtual uint32_t GetSerializedSize (void) const { |
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return N; |
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140 |
} |
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virtual void Serialize (TagBuffer buf) const { |
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for (uint32_t i = 0; i < N; ++i) |
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143 |
{ |
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buf.WriteU8 (N); |
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} |
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146 |
} |
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147 |
virtual void Deserialize (TagBuffer buf) { |
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for (uint32_t i = 0; i < N; ++i) |
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149 |
{ |
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buf.ReadU8 (); |
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151 |
} |
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152 |
} |
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153 |
virtual void Print (std::ostream &os) const { |
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os << "N=" << N; |
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155 |
} |
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156 |
BenchTag () |
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157 |
: Tag () {} |
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158 |
}; |
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159 |
|
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160 |
|
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161 |
static void |
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162 |
benchD (uint32_t n) |
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163 |
{ |
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164 |
BenchHeader<25> ipv4; |
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BenchHeader<8> udp; |
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166 |
BenchTag<16> tag1; |
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BenchTag<17> tag2; |
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168 |
|
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169 |
for (uint32_t i = 0; i < n; i++) { |
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Ptr<Packet> p = Create<Packet> (2000); |
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171 |
p->AddTag (tag1); |
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172 |
p->AddHeader (udp); |
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p->FindFirstMatchingTag (tag1); |
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p->AddTag (tag2); |
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p->AddHeader (ipv4); |
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Ptr<Packet> o = p->Copy (); |
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177 |
o->RemoveHeader (ipv4); |
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p->FindFirstMatchingTag (tag2); |
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o->RemoveHeader (udp); |
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180 |
} |
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181 |
} |
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182 |
|
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183 |
|
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184 |
|
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185 |
static void |
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186 |
benchA (uint32_t n) |
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187 |
{ |
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188 |
BenchHeader<25> ipv4; |
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189 |
BenchHeader<8> udp; |
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190 |
|
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191 |
for (uint32_t i = 0; i < n; i++) { |
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192 |
Ptr<Packet> p = Create<Packet> (2000); |
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193 |
p->AddHeader (udp); |
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194 |
p->AddHeader (ipv4); |
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195 |
Ptr<Packet> o = p->Copy (); |
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196 |
o->RemoveHeader (ipv4); |
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197 |
o->RemoveHeader (udp); |
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198 |
} |
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199 |
} |
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200 |
|
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201 |
static void |
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202 |
benchB (uint32_t n) |
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203 |
{ |
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204 |
BenchHeader<25> ipv4; |
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205 |
BenchHeader<8> udp; |
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206 |
|
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207 |
for (uint32_t i = 0; i < n; i++) { |
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208 |
Ptr<Packet> p = Create<Packet> (2000); |
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209 |
p->AddHeader (udp); |
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210 |
p->AddHeader (ipv4); |
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211 |
} |
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212 |
} |
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213 |
|
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214 |
static void |
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215 |
C2 (Ptr<Packet> p) |
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216 |
{ |
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217 |
BenchHeader<8> udp; |
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218 |
|
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219 |
p->RemoveHeader (udp); |
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220 |
} |
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221 |
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222 |
static void |
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223 |
C1 (Ptr<Packet> p) |
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224 |
{ |
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225 |
BenchHeader<25> ipv4; |
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226 |
p->RemoveHeader (ipv4); |
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227 |
C2 (p); |
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228 |
} |
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229 |
|
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230 |
static void |
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231 |
benchC (uint32_t n) |
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232 |
{ |
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233 |
BenchHeader<25> ipv4; |
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BenchHeader<8> udp; |
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|
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for (uint32_t i = 0; i < n; i++) { |
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Ptr<Packet> p = Create<Packet> (2000); |
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p->AddHeader (udp); |
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p->AddHeader (ipv4); |
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C1 (p); |
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} |
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} |
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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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SystemWallClockMs 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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|
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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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{ |
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char const *nAscii = argv[0] + strlen ("--n="); |
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std::istringstream iss; |
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iss.str (nAscii); |
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iss >> n; |
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} |
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if (strncmp ("--enable-printing", argv[0], strlen ("--enable-printing")) == 0) |
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{ |
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Packet::EnablePrinting (); |
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} |
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argc--; |
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argv++; |
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} |
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276 |
if (n == 0) |
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{ |
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std::cerr << "Error-- number of packets must be specified " << |
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"by command-line argument --n=(number of packets)" << std::endl; |
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exit (1); |
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} |
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std::cout << "Running bench-packets with n=" << n << std::endl; |
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|
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runBench (&benchA, n, "a"); |
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runBench (&benchB, n, "b"); |
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runBench (&benchC, n, "c"); |
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runBench (&benchD, n, "d"); |
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288 |
|
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289 |
return 0; |
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290 |
} |