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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 | /* $Id$ */ | |
16 | //_________________________________________________________________________ | |
00399209 | 17 | //Basic Memory Leak utility. |
18 | // You can use this tiny class to *see* if your program is leaking. | |
19 | // Usage: | |
ac8cd48d | 20 | // AliMemoryWatcher memwatcher; |
00399209 | 21 | // some program loop on events here { |
22 | // if ( nevents % x == 0 ) | |
23 | // { | |
24 | // // take a sample every x events | |
7c8a93e6 | 25 | // memwatcher.Watch(nevents); |
00399209 | 26 | // } |
27 | // } | |
28 | // TFile f("out.root","RECREATE"); | |
7c8a93e6 | 29 | // memwatcher.Write(); |
00399209 | 30 | // f.Close(); |
31 | // In the output root file you'll get 3 graphs representing | |
32 | // the evolAliPHOSon, as a function of the number of events, of : | |
33 | // - VSIZE is the virtual size (in KBytes) of your program, that is sort of | |
34 | // the total memory used | |
35 | // - RSSIZE is the resident size (in KBytes), that is, the part of your | |
36 | // program which is really in physical memory. | |
37 | // - TIME is an estimate of time per event (really it's the time elasped | |
38 | // between two calls to watch method) | |
39 | // WARNING: this is far from a bulletproof memory report (it's basically | |
40 | // using UNIX command ps -h -p [PID] -o vsize,rssize to do its job). | |
41 | // It has only been tested on Linux so far. | |
42 | // But by fitting the VSIZE by a pol1 under ROOT, you'll see right away | |
43 | // by how much your program is leaking. | |
d60522e4 | 44 | //*-- Author: Laurent Aphecetche(SUBATECH) |
d60522e4 | 45 | // --- std system --- |
b01af8c2 | 46 | class assert ; |
65f03c13 | 47 | #ifdef __APPLE__ |
48 | #include <stdlib.h> | |
49 | #else | |
7406fd3c | 50 | #include <malloc.h> |
65f03c13 | 51 | #endif |
d60522e4 | 52 | // --- AliRoot header files --- |
ac8cd48d | 53 | #include "AliMemoryWatcher.h" |
d60522e4 | 54 | // --- ROOT system --- |
55 | #include "TSystem.h" | |
56 | #include "TGraph.h" | |
57 | #include "TH2.h" | |
58 | #include "TStopwatch.h" | |
7c8a93e6 | 59 | #include "TError.h" |
dfe7f75b | 60 | |
ac8cd48d | 61 | ClassImp(AliMemoryWatcher) |
dfe7f75b | 62 | |
d60522e4 | 63 | //_____________________________________________________________________________ |
ac8cd48d | 64 | AliMemoryWatcher::AliMemoryWatcher(UInt_t maxsize) |
d60522e4 | 65 | { |
b01af8c2 | 66 | //ctor |
d60522e4 | 67 | fMAXSIZE=maxsize; |
7406fd3c | 68 | fUseMallinfo = true; |
d60522e4 | 69 | fPID = gSystem->GetPid(); |
70 | sprintf(fCmd,"ps -h -p %d -o vsize,rssize",fPID); | |
b01af8c2 | 71 | fX = new Int_t[fMAXSIZE]; |
72 | fVSIZE = new Int_t[fMAXSIZE]; | |
73 | fRSSIZE = new Int_t[fMAXSIZE]; | |
74 | fTIME = new Double_t[fMAXSIZE]; | |
d60522e4 | 75 | fSize=0; |
76 | fDisabled=false; | |
77 | fTimer=0; | |
78 | } | |
d60522e4 | 79 | //_____________________________________________________________________________ |
d1898505 | 80 | AliMemoryWatcher::AliMemoryWatcher(const AliMemoryWatcher& mw): |
81 | TObject(mw) | |
00399209 | 82 | { |
83 | //copy ctor | |
84 | fMAXSIZE = mw.fMAXSIZE ; | |
7406fd3c | 85 | fUseMallinfo = mw.fUseMallinfo; |
00399209 | 86 | fPID = mw.fPID ; |
87 | strcpy(fCmd, mw.fCmd) ; | |
88 | fX = new Int_t[fMAXSIZE]; | |
89 | fVSIZE = new Int_t[fMAXSIZE]; | |
90 | fRSSIZE = new Int_t[fMAXSIZE]; | |
91 | fTIME = new Double_t[fMAXSIZE]; | |
92 | fSize=0; | |
93 | fDisabled=false; | |
94 | fTimer=0; | |
95 | } | |
96 | //_____________________________________________________________________________ | |
ac8cd48d | 97 | AliMemoryWatcher::~AliMemoryWatcher() |
d60522e4 | 98 | { |
2a6e66b9 | 99 | // dtor |
d60522e4 | 100 | delete[] fVSIZE; |
101 | delete[] fRSSIZE; | |
102 | delete[] fX; | |
103 | delete[] fTIME; | |
104 | delete fTimer; | |
105 | } | |
d60522e4 | 106 | //_____________________________________________________________________________ |
ac8cd48d | 107 | void AliMemoryWatcher::Watch(Int_t x) |
d60522e4 | 108 | { |
b01af8c2 | 109 | // Sets the point where CPU parameters have to be monitored |
d60522e4 | 110 | if ( !fDisabled && fSize < fMAXSIZE ) { |
d60522e4 | 111 | if ( fSize==0 ) { |
112 | assert(fTimer==0); | |
113 | fTimer = new TStopwatch; | |
114 | fTimer->Start(true); | |
115 | fTimer->Stop(); | |
116 | } | |
7406fd3c | 117 | if ( fUseMallinfo ) { |
1844c927 | 118 | #ifdef __linux |
7406fd3c | 119 | static struct mallinfo meminfo; |
120 | meminfo = mallinfo(); | |
d60522e4 | 121 | fX[fSize] = x ; |
7406fd3c | 122 | fVSIZE[fSize] = (meminfo.hblkhd + meminfo.uordblks) / 1024; |
123 | fRSSIZE[fSize] = meminfo.uordblks / 1024; | |
d60522e4 | 124 | fTIME[fSize] = fTimer->CpuTime(); |
125 | fSize++; | |
1844c927 | 126 | #else |
127 | ::Fatal("Watch","Please SetUseMallinfo to kFALSE on this system"); | |
128 | #endif | |
7406fd3c | 129 | } else { |
130 | static Int_t vsize, rssize; | |
131 | static FILE* pipe = 0; | |
132 | pipe = popen(fCmd,"r"); | |
133 | if ( pipe ) { | |
134 | ||
135 | fscanf(pipe,"%d %d",&vsize,&rssize); | |
136 | ||
137 | fX[fSize] = x ; | |
138 | fVSIZE[fSize] = vsize ; | |
139 | fRSSIZE[fSize] = rssize ; | |
140 | fTIME[fSize] = fTimer->CpuTime(); | |
141 | fSize++; | |
142 | } | |
143 | assert(pclose(pipe)!=-1); | |
d60522e4 | 144 | } |
d60522e4 | 145 | fTimer->Start(true); |
d60522e4 | 146 | } |
147 | else { | |
148 | fDisabled=true; | |
21cd0c07 | 149 | Error("watch", "I'm full !" ) ; |
d60522e4 | 150 | } |
151 | } | |
d60522e4 | 152 | //_____________________________________________________________________________ |
153 | TGraph* | |
ac8cd48d | 154 | AliMemoryWatcher::GraphVSIZE(void) |
d60522e4 | 155 | { |
b01af8c2 | 156 | // Fills the graph with the virtual memory sized used |
d60522e4 | 157 | TGraph* g = 0; |
00399209 | 158 | if ( Size() ) |
d60522e4 | 159 | { |
00399209 | 160 | g = new TGraph(Size()); |
b01af8c2 | 161 | Int_t i ; |
162 | for (i=0; i < g->GetN(); i++ ) { | |
d60522e4 | 163 | g->SetPoint(i,X(i),VSIZE(i)); |
164 | } | |
165 | } | |
166 | return g; | |
167 | } | |
d60522e4 | 168 | //_____________________________________________________________________________ |
169 | TGraph* | |
ac8cd48d | 170 | AliMemoryWatcher::GraphRSSIZE(void) |
d60522e4 | 171 | { |
b01af8c2 | 172 | // Fills the graph with the real memory sized used |
d60522e4 | 173 | TGraph* g = 0; |
00399209 | 174 | if ( Size() ) |
d60522e4 | 175 | { |
00399209 | 176 | g = new TGraph(Size()); |
b01af8c2 | 177 | Int_t i ; |
178 | for (i=0; i < g->GetN(); i++ ) { | |
d60522e4 | 179 | g->SetPoint(i,X(i),RSSIZE(i)); |
180 | } | |
181 | } | |
182 | return g; | |
183 | } | |
d60522e4 | 184 | //_____________________________________________________________________________ |
185 | TGraph* | |
ac8cd48d | 186 | AliMemoryWatcher::GraphTIME(void) |
d60522e4 | 187 | { |
b01af8c2 | 188 | // Fills the raph with the used CPU time |
d60522e4 | 189 | TGraph* g = 0; |
00399209 | 190 | if ( Size() ) |
d60522e4 | 191 | { |
00399209 | 192 | g = new TGraph(Size()); |
b01af8c2 | 193 | Int_t i ; |
194 | for (i=0; i < g->GetN(); i++ ) { | |
d60522e4 | 195 | g->SetPoint(i,X(i),TIME(i)); |
196 | } | |
197 | } | |
198 | return g; | |
199 | } | |
d60522e4 | 200 | //_____________________________________________________________________________ |
201 | TH2* | |
ac8cd48d | 202 | AliMemoryWatcher::Frame(void) const |
d60522e4 | 203 | { |
b01af8c2 | 204 | //creates the frame histo in which the graphs will be plotted |
205 | Double_t xmin=1E30; | |
206 | Double_t xmax=0; | |
207 | Double_t ymin=1; | |
208 | Double_t ymax=0; | |
209 | UInt_t i ; | |
00399209 | 210 | for (i=0; i < Size() ; i++ ) { |
d60522e4 | 211 | if ( X(i) < xmin ) xmin = X(i); |
212 | if ( X(i) > xmax ) xmax = X(i); | |
b01af8c2 | 213 | Double_t y = VSIZE(i)+RSSIZE(i); |
d60522e4 | 214 | if ( y > ymax ) ymax = y; |
d60522e4 | 215 | if ( VSIZE(i) < ymin ) ymin = VSIZE(i); |
216 | if ( RSSIZE(i) < ymin ) ymin = RSSIZE(i); | |
217 | } | |
d60522e4 | 218 | TH2F* h = new TH2F("frame","",10,xmin,xmax,10,ymin*0.8,ymax*1.2); |
d60522e4 | 219 | return h; |
220 | } | |
d60522e4 | 221 | //_____________________________________________________________________________ |
6c4904c2 | 222 | Int_t |
223 | AliMemoryWatcher::Write(const char *, Int_t, Int_t) | |
d60522e4 | 224 | { |
b01af8c2 | 225 | // Stores the graphs in a file |
226 | if ( GraphVSIZE() ) GraphVSIZE()->Write("VSIZE",TObject::kOverwrite); | |
00399209 | 227 | if ( GraphRSSIZE() ) GraphRSSIZE() ->Write("RSSIZE",TObject::kOverwrite); |
b01af8c2 | 228 | if ( GraphTIME() ) GraphTIME()->Write("TIME",TObject::kOverwrite); |
6c4904c2 | 229 | return 0; |
4ed9ed00 | 230 | } |