1/* 2 * Copyright (c) 2004-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Lisa Hsu 29 * Nathan Binkert 30 */ 31
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32#include <map>
33#include <stack>
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32#include <string> 33
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36#include "arch/alpha/osfpal.hh"
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34#include "base/trace.hh" 35#include "cpu/thread_context.hh" 36#include "kern/kernel_stats.hh" 37#include "kern/tru64/tru64_syscalls.hh" 38#include "sim/system.hh" 39 40using namespace std; 41using namespace Stats; 42 43namespace Kernel { 44
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48const char *modestr[] = { "kernel", "user", "idle" };
49
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45Statistics::Statistics(System *system)
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51 : idleProcess((Addr)-1), themode(kernel), lastModeTick(0),
52 iplLast(0), iplLastTick(0)
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46 : iplLast(0), iplLastTick(0) |
47{ 48} 49 50void 51Statistics::regStats(const string &_name) 52{ 53 myname = _name; 54 55 _arm 56 .name(name() + ".inst.arm") 57 .desc("number of arm instructions executed") 58 ; 59 60 _quiesce 61 .name(name() + ".inst.quiesce") 62 .desc("number of quiesce instructions executed") 63 ; 64
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71 _hwrei
72 .name(name() + ".inst.hwrei")
73 .desc("number of hwrei instructions executed")
74 ;
75
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65 _iplCount 66 .init(32) 67 .name(name() + ".ipl_count") 68 .desc("number of times we switched to this ipl") 69 .flags(total | pdf | nozero | nonan) 70 ; 71 72 _iplGood 73 .init(32) 74 .name(name() + ".ipl_good") 75 .desc("number of times we switched to this ipl from a different ipl") 76 .flags(total | pdf | nozero | nonan) 77 ; 78 79 _iplTicks 80 .init(32) 81 .name(name() + ".ipl_ticks") 82 .desc("number of cycles we spent at this ipl") 83 .flags(total | pdf | nozero | nonan) 84 ; 85 86 _iplUsed 87 .name(name() + ".ipl_used") 88 .desc("fraction of swpipl calls that actually changed the ipl") 89 .flags(total | nozero | nonan) 90 ; 91 92 _iplUsed = _iplGood / _iplCount; 93
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105 _callpal
106 .init(256)
107 .name(name() + ".callpal")
108 .desc("number of callpals executed")
109 .flags(total | pdf | nozero | nonan)
110 ;
111
112 for (int i = 0; i < PAL::NumCodes; ++i) {
113 const char *str = PAL::name(i);
114 if (str)
115 _callpal.subname(i, str);
116 }
117
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94 _syscall 95 .init(SystemCalls<Tru64>::Number) 96 .name(name() + ".syscall") 97 .desc("number of syscalls executed") 98 .flags(total | pdf | nozero | nonan) 99 ; 100
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101 //@todo This needs to get the names of syscalls from an appropriate place. 102#if 0 |
103 for (int i = 0; i < SystemCalls<Tru64>::Number; ++i) { 104 const char *str = SystemCalls<Tru64>::name(i); 105 if (str) { 106 _syscall.subname(i, str); 107 } 108 }
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131
132 _mode
133 .init(cpu_mode_num)
134 .name(name() + ".mode_switch")
135 .desc("number of protection mode switches")
136 ;
137
138 for (int i = 0; i < cpu_mode_num; ++i)
139 _mode.subname(i, modestr[i]);
140
141 _modeGood
142 .init(cpu_mode_num)
143 .name(name() + ".mode_good")
144 ;
145
146 for (int i = 0; i < cpu_mode_num; ++i)
147 _modeGood.subname(i, modestr[i]);
148
149 _modeFraction
150 .name(name() + ".mode_switch_good")
151 .desc("fraction of useful protection mode switches")
152 .flags(total)
153 ;
154
155 for (int i = 0; i < cpu_mode_num; ++i)
156 _modeFraction.subname(i, modestr[i]);
157
158 _modeFraction = _modeGood / _mode;
159
160 _modeTicks
161 .init(cpu_mode_num)
162 .name(name() + ".mode_ticks")
163 .desc("number of ticks spent at the given mode")
164 .flags(pdf)
165 ;
166 for (int i = 0; i < cpu_mode_num; ++i)
167 _modeTicks.subname(i, modestr[i]);
168
169 _swap_context
170 .name(name() + ".swap_context")
171 .desc("number of times the context was actually changed")
172 ;
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109#endif |
110} 111 112void
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176Statistics::setIdleProcess(Addr idlepcbb, ThreadContext *tc)
177{
178 assert(themode == kernel);
179 idleProcess = idlepcbb;
180 themode = idle;
181 changeMode(themode, tc);
182}
183
184void
185Statistics::changeMode(cpu_mode newmode, ThreadContext *tc)
186{
187 _mode[newmode]++;
188
189 if (newmode == themode)
190 return;
191
192 DPRINTF(Context, "old mode=%-8s new mode=%-8s\n",
193 modestr[themode], modestr[newmode]);
194
195 _modeGood[newmode]++;
196 _modeTicks[themode] += curTick - lastModeTick;
197
198 lastModeTick = curTick;
199 themode = newmode;
200}
201
202void
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113Statistics::swpipl(int ipl) 114{ 115 assert(ipl >= 0 && ipl <= 0x1f && "invalid IPL\n"); 116 117 _iplCount[ipl]++; 118 119 if (ipl == iplLast) 120 return; 121 122 _iplGood[ipl]++; 123 _iplTicks[iplLast] += curTick - iplLastTick; 124 iplLastTick = curTick; 125 iplLast = ipl; 126} 127 128void
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219Statistics::mode(cpu_mode newmode, ThreadContext *tc)
220{
221 Addr pcbb = tc->readMiscReg(AlphaISA::IPR_PALtemp23);
222
223 if (newmode == kernel && pcbb == idleProcess)
224 newmode = idle;
225
226 changeMode(newmode, tc);
227}
228
229void
230Statistics::context(Addr oldpcbb, Addr newpcbb, ThreadContext *tc)
231{
232 assert(themode != user);
233
234 _swap_context++;
235 changeMode(newpcbb == idleProcess ? idle : kernel, tc);
236}
237
238void
239Statistics::callpal(int code, ThreadContext *tc)
240{
241 if (!PAL::name(code))
242 return;
243
244 _callpal[code]++;
245
246 switch (code) {
247 case PAL::callsys: {
248 int number = tc->readIntReg(0);
249 if (SystemCalls<Tru64>::validSyscallNumber(number)) {
250 int cvtnum = SystemCalls<Tru64>::convert(number);
251 _syscall[cvtnum]++;
252 }
253 } break;
254 }
255}
256
257void
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129Statistics::serialize(ostream &os) 130{
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260 int exemode = themode;
261 SERIALIZE_SCALAR(exemode);
262 SERIALIZE_SCALAR(idleProcess);
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131 SERIALIZE_SCALAR(iplLast); 132 SERIALIZE_SCALAR(iplLastTick);
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265 SERIALIZE_SCALAR(lastModeTick);
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133} 134 135void 136Statistics::unserialize(Checkpoint *cp, const string §ion) 137{
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271 int exemode;
272 UNSERIALIZE_SCALAR(exemode);
273 UNSERIALIZE_SCALAR(idleProcess);
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138 UNSERIALIZE_SCALAR(iplLast); 139 UNSERIALIZE_SCALAR(iplLastTick);
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276 UNSERIALIZE_SCALAR(lastModeTick);
277 themode = (cpu_mode)exemode;
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140} 141 142/* end namespace Kernel */ }
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