author | Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
Mon, 01 Oct 2007 14:15:56 +0200 | |
changeset 1866 | e7dbcc4df546 |
parent 1323 | 08174b13d76f |
child 1869 | 9e5d8b4893b2 |
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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* 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/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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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 uint32_t GetUid (void); |
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static std::string GetName (void); |
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void Print (std::ostream &os) const; |
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uint32_t GetSerializedSize (void) const; |
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void Serialize (Buffer::Iterator start) const; |
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uint32_t Deserialize (Buffer::Iterator start); |
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private: |
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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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{ |
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return m_ok; |
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} |
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template <int N> |
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uint32_t |
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BenchHeader<N>::GetUid (void) |
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{ |
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static uint32_t uid = AllocateUid<BenchHeader<N> > (GetName ()); |
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return uid; |
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} |
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template <int N> |
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std::string |
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BenchHeader<N>::GetName (void) |
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std::ostringstream oss; |
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oss << "BenchHeader" << N; |
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return oss.str (); |
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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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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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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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} |
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return N; |
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} |
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static void |
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benchPtrA (uint32_t n) |
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{ |
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BenchHeader<25> ipv4; |
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BenchHeader<8> udp; |
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116 |
|
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117 |
for (uint32_t i = 0; i < n; i++) { |
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118 |
Ptr<Packet> p = Create<Packet> (2000); |
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119 |
p->AddHeader (udp); |
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120 |
p->AddHeader (ipv4); |
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121 |
Ptr<Packet> o = p->Copy (); |
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o->RemoveHeader (ipv4); |
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o->RemoveHeader (udp); |
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124 |
} |
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125 |
} |
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126 |
|
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127 |
static void |
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128 |
benchPtrB (uint32_t n) |
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129 |
{ |
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130 |
BenchHeader<25> ipv4; |
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131 |
BenchHeader<8> udp; |
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132 |
|
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133 |
for (uint32_t i = 0; i < n; i++) { |
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134 |
Ptr<Packet> p = Create<Packet> (2000); |
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135 |
p->AddHeader (udp); |
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136 |
p->AddHeader (ipv4); |
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137 |
} |
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138 |
} |
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|
139 |
|
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140 |
static void |
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141 |
ptrC2 (Ptr<Packet> p) |
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142 |
{ |
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143 |
BenchHeader<8> udp; |
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144 |
|
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145 |
p->RemoveHeader (udp); |
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146 |
} |
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|
147 |
|
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148 |
static void |
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149 |
ptrC1 (Ptr<Packet> p) |
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150 |
{ |
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151 |
BenchHeader<25> ipv4; |
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p->RemoveHeader (ipv4); |
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153 |
ptrC2 (p); |
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154 |
} |
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|
155 |
|
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|
156 |
static void |
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157 |
benchPtrC (uint32_t n) |
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158 |
{ |
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|
159 |
BenchHeader<25> ipv4; |
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|
160 |
BenchHeader<8> udp; |
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|
161 |
|
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|
162 |
for (uint32_t i = 0; i < n; i++) { |
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|
163 |
Ptr<Packet> p = Create<Packet> (2000); |
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|
164 |
p->AddHeader (udp); |
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|
165 |
p->AddHeader (ipv4); |
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166 |
ptrC1 (p); |
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|
167 |
} |
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|
168 |
} |
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|
169 |
|
1322
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|
170 |
#if 0 |
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171 |
static void |
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|
172 |
benchPrint (uint32_t n) |
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|
173 |
{ |
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|
174 |
PacketPrinter printer; |
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|
175 |
BenchHeader<25> ipv4; |
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|
176 |
BenchHeader<8> udp; |
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|
177 |
Ptr<Packet> p = Create<Packet> (2000); |
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|
178 |
p->AddHeader (udp); |
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|
179 |
p->AddHeader (ipv4); |
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|
180 |
|
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|
181 |
for (uint32_t i = 0; i < n; i++) |
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|
182 |
{ |
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|
183 |
p->Print (std::cerr, printer); |
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|
184 |
} |
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|
185 |
} |
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|
186 |
#endif |
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|
187 |
|
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|
188 |
|
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|
189 |
static void |
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|
190 |
runBench (void (*bench) (uint32_t), uint32_t n, char const *name) |
12
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|
191 |
{ |
832
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|
192 |
SystemWallClockMs time; |
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|
193 |
time.Start (); |
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|
194 |
(*bench) (n); |
832
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|
195 |
unsigned long long deltaMs = time.End (); |
150
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|
196 |
double ps = n; |
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|
197 |
ps *= 1000; |
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|
198 |
ps /= deltaMs; |
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|
199 |
std::cout << name<<"=" << ps << " packets/s" << std::endl; |
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|
200 |
} |
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changeset
|
201 |
|
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|
202 |
int main (int argc, char *argv[]) |
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|
203 |
{ |
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|
204 |
uint32_t n = 0; |
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|
205 |
while (argc > 0) { |
833
224bfad58818
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diff
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|
206 |
if (strncmp ("--n=", argv[0],strlen ("--n=")) == 0) |
224bfad58818
a bunch of optimizations
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diff
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|
207 |
{ |
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|
208 |
char const *nAscii = argv[0] + strlen ("--n="); |
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|
209 |
n = atoi (nAscii); |
833
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|
210 |
} |
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|
211 |
argc--; |
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|
212 |
argv++; |
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|
213 |
} |
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|
214 |
|
833
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diff
changeset
|
215 |
|
150
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|
216 |
runBench (&benchPtrA, n, "a"); |
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|
217 |
runBench (&benchPtrB, n, "b"); |
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|
218 |
runBench (&benchPtrC, n, "c"); |
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|
219 |
|
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|
220 |
Packet::EnableMetadata (); |
1322
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|
221 |
//runBench (&benchPrint, n, "print"); |
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|
222 |
PacketMetadata::SetOptOne (false); |
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changeset
|
223 |
runBench (&benchPtrA, n, "meta-a"); |
d6715af78f7e
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changeset
|
224 |
runBench (&benchPtrB, n, "meta-b"); |
d6715af78f7e
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parents:
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changeset
|
225 |
runBench (&benchPtrC, n, "meta-c"); |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
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changeset
|
226 |
PacketMetadata::SetOptOne (true); |
894
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|
227 |
runBench (&benchPtrA, n, "meta-a-opt"); |
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changeset
|
228 |
runBench (&benchPtrB, n, "meta-b-opt"); |
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|
229 |
runBench (&benchPtrC, n, "meta-c-opt"); |
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changeset
|
230 |
|
12
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|
231 |
|
150
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|
232 |
return 0; |
12
917ba023c576
utils and samples
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
233 |
} |