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d60522e4 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | /* $Id$ */ | |
cc124d17 | 16 | |
d60522e4 | 17 | //_________________________________________________________________________ |
00399209 | 18 | //Basic Memory Leak utility. |
19 | // You can use this tiny class to *see* if your program is leaking. | |
20 | // Usage: | |
ac8cd48d | 21 | // AliMemoryWatcher memwatcher; |
00399209 | 22 | // some program loop on events here { |
23 | // if ( nevents % x == 0 ) | |
24 | // { | |
25 | // // take a sample every x events | |
7c8a93e6 | 26 | // memwatcher.Watch(nevents); |
00399209 | 27 | // } |
28 | // } | |
29 | // TFile f("out.root","RECREATE"); | |
7c8a93e6 | 30 | // memwatcher.Write(); |
00399209 | 31 | // f.Close(); |
32 | // In the output root file you'll get 3 graphs representing | |
33 | // the evolAliPHOSon, as a function of the number of events, of : | |
34 | // - VSIZE is the virtual size (in KBytes) of your program, that is sort of | |
35 | // the total memory used | |
36 | // - RSSIZE is the resident size (in KBytes), that is, the part of your | |
37 | // program which is really in physical memory. | |
38 | // - TIME is an estimate of time per event (really it's the time elasped | |
39 | // between two calls to watch method) | |
40 | // WARNING: this is far from a bulletproof memory report (it's basically | |
41 | // using UNIX command ps -h -p [PID] -o vsize,rssize to do its job). | |
42 | // It has only been tested on Linux so far. | |
43 | // But by fitting the VSIZE by a pol1 under ROOT, you'll see right away | |
44 | // by how much your program is leaking. | |
d60522e4 | 45 | //*-- Author: Laurent Aphecetche(SUBATECH) |
cc124d17 | 46 | |
d60522e4 | 47 | // --- std system --- |
54ee927c | 48 | #include <cassert> |
65f03c13 | 49 | #ifdef __APPLE__ |
50 | #include <stdlib.h> | |
51 | #else | |
7406fd3c | 52 | #include <malloc.h> |
65f03c13 | 53 | #endif |
d60522e4 | 54 | // --- AliRoot header files --- |
21bf7095 | 55 | #include "AliLog.h" |
ac8cd48d | 56 | #include "AliMemoryWatcher.h" |
d60522e4 | 57 | // --- ROOT system --- |
58 | #include "TSystem.h" | |
59 | #include "TGraph.h" | |
60 | #include "TH2.h" | |
61 | #include "TStopwatch.h" | |
7c8a93e6 | 62 | #include "TError.h" |
dfe7f75b | 63 | |
ac8cd48d | 64 | ClassImp(AliMemoryWatcher) |
dfe7f75b | 65 | |
d60522e4 | 66 | //_____________________________________________________________________________ |
90e48c0c | 67 | AliMemoryWatcher::AliMemoryWatcher(UInt_t maxsize) : |
68 | TObject(), | |
69 | fUseMallinfo(kTRUE), | |
70 | fPID(gSystem->GetPid()), | |
71 | fMAXSIZE(maxsize), | |
72 | fSize(0), | |
73 | fX(new Int_t[fMAXSIZE]), | |
74 | fVSIZE(new Int_t[fMAXSIZE]), | |
75 | fRSSIZE(new Int_t[fMAXSIZE]), | |
76 | fTIME(new Double_t[fMAXSIZE]), | |
77 | fTimer(0), | |
78 | fDisabled(kFALSE) | |
d60522e4 | 79 | { |
90e48c0c | 80 | // |
b01af8c2 | 81 | //ctor |
90e48c0c | 82 | // |
9f50efc4 | 83 | sprintf(fCmd,"ps -h -p %d -o vsz,rss | grep -v VSZ",fPID); |
d60522e4 | 84 | } |
90e48c0c | 85 | |
d60522e4 | 86 | //_____________________________________________________________________________ |
d1898505 | 87 | AliMemoryWatcher::AliMemoryWatcher(const AliMemoryWatcher& mw): |
90e48c0c | 88 | TObject(mw), |
89 | fUseMallinfo(mw.fUseMallinfo), | |
90 | fPID(mw.fPID), | |
91 | fMAXSIZE(mw.fMAXSIZE), | |
92 | fSize(0), | |
93 | fX(new Int_t[fMAXSIZE]), | |
94 | fVSIZE(new Int_t[fMAXSIZE]), | |
95 | fRSSIZE(new Int_t[fMAXSIZE]), | |
96 | fTIME(new Double_t[fMAXSIZE]), | |
97 | fTimer(0), | |
98 | fDisabled(kFALSE) | |
00399209 | 99 | { |
100 | //copy ctor | |
00399209 | 101 | strcpy(fCmd, mw.fCmd) ; |
00399209 | 102 | } |
90e48c0c | 103 | |
00399209 | 104 | //_____________________________________________________________________________ |
ac8cd48d | 105 | AliMemoryWatcher::~AliMemoryWatcher() |
d60522e4 | 106 | { |
2a6e66b9 | 107 | // dtor |
d60522e4 | 108 | delete[] fVSIZE; |
109 | delete[] fRSSIZE; | |
110 | delete[] fX; | |
111 | delete[] fTIME; | |
112 | delete fTimer; | |
113 | } | |
d60522e4 | 114 | //_____________________________________________________________________________ |
ac8cd48d | 115 | void AliMemoryWatcher::Watch(Int_t x) |
d60522e4 | 116 | { |
b01af8c2 | 117 | // Sets the point where CPU parameters have to be monitored |
d60522e4 | 118 | if ( !fDisabled && fSize < fMAXSIZE ) { |
d60522e4 | 119 | if ( fSize==0 ) { |
120 | assert(fTimer==0); | |
121 | fTimer = new TStopwatch; | |
122 | fTimer->Start(true); | |
123 | fTimer->Stop(); | |
124 | } | |
7406fd3c | 125 | if ( fUseMallinfo ) { |
1844c927 | 126 | #ifdef __linux |
7406fd3c | 127 | static struct mallinfo meminfo; |
128 | meminfo = mallinfo(); | |
d60522e4 | 129 | fX[fSize] = x ; |
7406fd3c | 130 | fVSIZE[fSize] = (meminfo.hblkhd + meminfo.uordblks) / 1024; |
131 | fRSSIZE[fSize] = meminfo.uordblks / 1024; | |
d60522e4 | 132 | fTIME[fSize] = fTimer->CpuTime(); |
133 | fSize++; | |
1844c927 | 134 | #else |
21bf7095 | 135 | AliFatal("Please SetUseMallinfo to kFALSE on this system"); |
1844c927 | 136 | #endif |
7406fd3c | 137 | } else { |
138 | static Int_t vsize, rssize; | |
139 | static FILE* pipe = 0; | |
140 | pipe = popen(fCmd,"r"); | |
141 | if ( pipe ) { | |
142 | ||
143 | fscanf(pipe,"%d %d",&vsize,&rssize); | |
144 | ||
145 | fX[fSize] = x ; | |
146 | fVSIZE[fSize] = vsize ; | |
147 | fRSSIZE[fSize] = rssize ; | |
148 | fTIME[fSize] = fTimer->CpuTime(); | |
149 | fSize++; | |
150 | } | |
151 | assert(pclose(pipe)!=-1); | |
d60522e4 | 152 | } |
d60522e4 | 153 | fTimer->Start(true); |
d60522e4 | 154 | } |
155 | else { | |
156 | fDisabled=true; | |
21bf7095 | 157 | AliError("I'm full !" ) ; |
d60522e4 | 158 | } |
159 | } | |
d60522e4 | 160 | //_____________________________________________________________________________ |
161 | TGraph* | |
ac8cd48d | 162 | AliMemoryWatcher::GraphVSIZE(void) |
d60522e4 | 163 | { |
b01af8c2 | 164 | // Fills the graph with the virtual memory sized used |
d60522e4 | 165 | TGraph* g = 0; |
00399209 | 166 | if ( Size() ) |
d60522e4 | 167 | { |
00399209 | 168 | g = new TGraph(Size()); |
b01af8c2 | 169 | Int_t i ; |
170 | for (i=0; i < g->GetN(); i++ ) { | |
d60522e4 | 171 | g->SetPoint(i,X(i),VSIZE(i)); |
172 | } | |
173 | } | |
174 | return g; | |
175 | } | |
d60522e4 | 176 | //_____________________________________________________________________________ |
177 | TGraph* | |
ac8cd48d | 178 | AliMemoryWatcher::GraphRSSIZE(void) |
d60522e4 | 179 | { |
b01af8c2 | 180 | // Fills the graph with the real memory sized used |
d60522e4 | 181 | TGraph* g = 0; |
00399209 | 182 | if ( Size() ) |
d60522e4 | 183 | { |
00399209 | 184 | g = new TGraph(Size()); |
b01af8c2 | 185 | Int_t i ; |
186 | for (i=0; i < g->GetN(); i++ ) { | |
d60522e4 | 187 | g->SetPoint(i,X(i),RSSIZE(i)); |
188 | } | |
189 | } | |
190 | return g; | |
191 | } | |
d60522e4 | 192 | //_____________________________________________________________________________ |
193 | TGraph* | |
ac8cd48d | 194 | AliMemoryWatcher::GraphTIME(void) |
d60522e4 | 195 | { |
b01af8c2 | 196 | // Fills the raph with the used CPU time |
d60522e4 | 197 | TGraph* g = 0; |
00399209 | 198 | if ( Size() ) |
d60522e4 | 199 | { |
00399209 | 200 | g = new TGraph(Size()); |
b01af8c2 | 201 | Int_t i ; |
202 | for (i=0; i < g->GetN(); i++ ) { | |
d60522e4 | 203 | g->SetPoint(i,X(i),TIME(i)); |
204 | } | |
205 | } | |
206 | return g; | |
207 | } | |
d60522e4 | 208 | //_____________________________________________________________________________ |
209 | TH2* | |
ac8cd48d | 210 | AliMemoryWatcher::Frame(void) const |
d60522e4 | 211 | { |
b01af8c2 | 212 | //creates the frame histo in which the graphs will be plotted |
213 | Double_t xmin=1E30; | |
214 | Double_t xmax=0; | |
215 | Double_t ymin=1; | |
216 | Double_t ymax=0; | |
217 | UInt_t i ; | |
00399209 | 218 | for (i=0; i < Size() ; i++ ) { |
d60522e4 | 219 | if ( X(i) < xmin ) xmin = X(i); |
220 | if ( X(i) > xmax ) xmax = X(i); | |
b01af8c2 | 221 | Double_t y = VSIZE(i)+RSSIZE(i); |
d60522e4 | 222 | if ( y > ymax ) ymax = y; |
d60522e4 | 223 | if ( VSIZE(i) < ymin ) ymin = VSIZE(i); |
224 | if ( RSSIZE(i) < ymin ) ymin = RSSIZE(i); | |
225 | } | |
d60522e4 | 226 | TH2F* h = new TH2F("frame","",10,xmin,xmax,10,ymin*0.8,ymax*1.2); |
d60522e4 | 227 | return h; |
228 | } | |
d60522e4 | 229 | //_____________________________________________________________________________ |
6c4904c2 | 230 | Int_t |
c4cb6153 | 231 | AliMemoryWatcher::WriteToFile() |
d60522e4 | 232 | { |
b01af8c2 | 233 | // Stores the graphs in a file |
234 | if ( GraphVSIZE() ) GraphVSIZE()->Write("VSIZE",TObject::kOverwrite); | |
00399209 | 235 | if ( GraphRSSIZE() ) GraphRSSIZE() ->Write("RSSIZE",TObject::kOverwrite); |
b01af8c2 | 236 | if ( GraphTIME() ) GraphTIME()->Write("TIME",TObject::kOverwrite); |
6c4904c2 | 237 | return 0; |
4ed9ed00 | 238 | } |