1 // Created on: 1992-11-16
2 // Created by: Mireille MERCIEN
3 // Copyright (c) 1992-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
18 #include <OSD_Chronometer.hxx>
19 #include <Standard_Stream.hxx>
21 // ====================== PLATFORM-SPECIFIC PART ========================
24 //---------- Systemes autres que WNT : ----------------------------------
26 #include <sys/times.h>
30 # include <sys/resource.h>
33 //=======================================================================
34 //Selon les plateformes on doit avoir le nombre de clicks par secondes
35 //qui est l unite de mesure du temps.
36 //=======================================================================
38 # define _sysconf sysconf
46 # define CLK_TCK CLOCKS_PER_SEC
49 #if (defined(__APPLE__))
50 #include <mach/task.h>
51 #include <mach/mach.h>
54 //=======================================================================
55 //function : GetProcessCPU
57 //=======================================================================
58 void OSD_Chronometer::GetProcessCPU (Standard_Real& UserSeconds, Standard_Real& SystemSeconds)
60 #if defined(__linux__) || defined(__FreeBSD__) || defined(__ANDROID__) || defined(__QNX__)
61 static const long aCLK_TCK = sysconf(_SC_CLK_TCK);
63 static const long aCLK_TCK = CLK_TCK;
69 UserSeconds = (Standard_Real)CurrentTMS.tms_utime / aCLK_TCK;
70 SystemSeconds = (Standard_Real)CurrentTMS.tms_stime / aCLK_TCK;
73 //=======================================================================
74 //function : GetThreadCPU
76 //=======================================================================
77 void OSD_Chronometer::GetThreadCPU (Standard_Real& theUserSeconds,
78 Standard_Real& theSystemSeconds)
80 theUserSeconds = theSystemSeconds = 0.0;
81 #if (defined(__APPLE__))
82 struct task_thread_times_info aTaskInfo;
83 mach_msg_type_number_t aTaskInfoCount = TASK_THREAD_TIMES_INFO_COUNT;
84 if (KERN_SUCCESS == task_info(mach_task_self(), TASK_THREAD_TIMES_INFO,
85 (task_info_t )&aTaskInfo, &aTaskInfoCount))
87 theUserSeconds = Standard_Real(aTaskInfo.user_time.seconds) + 0.000001 * aTaskInfo.user_time.microseconds;
88 theSystemSeconds = Standard_Real(aTaskInfo.system_time.seconds) + 0.000001 * aTaskInfo.system_time.microseconds;
90 #elif (defined(_POSIX_TIMERS) && defined(_POSIX_THREAD_CPUTIME)) || defined(__ANDROID__) || defined(__QNX__)
91 // on Linux, only user times are available for threads via clock_gettime()
93 if (!clock_gettime (CLOCK_THREAD_CPUTIME_ID, &t))
95 theUserSeconds = t.tv_sec + 0.000000001 * t.tv_nsec;
97 #elif defined(SOLARIS)
98 // on Solaris, both user and system times are available as LWP times
100 if (!getrusage (RUSAGE_LWP, &rut))
102 theUserSeconds = rut.ru_utime.tv_sec + 0.000001 * rut.ru_utime.tv_usec;
103 theSystemSeconds = rut.ru_stime.tv_sec + 0.000001 * rut.ru_stime.tv_usec;
106 #pragma error "OS is not supported yet; code to be ported"
112 //---------------------------- Systeme WNT --------------------------------
116 //=======================================================================
117 //function : EncodeFILETIME
118 //purpose : Encode time defined by FILETIME structure
119 // (100s nanoseconds since January 1, 1601) to 64-bit integer
120 //=======================================================================
121 static inline __int64 EncodeFILETIME (PFILETIME pFt)
125 qw = pFt -> dwHighDateTime;
127 qw |= pFt -> dwLowDateTime;
132 //=======================================================================
133 //function : GetProcessCPU
135 //=======================================================================
136 void OSD_Chronometer::GetProcessCPU (Standard_Real& UserSeconds, Standard_Real& SystemSeconds)
139 FILETIME ftStart, ftExit, ftKernel, ftUser;
140 ::GetProcessTimes (GetCurrentProcess(), &ftStart, &ftExit, &ftKernel, &ftUser);
141 UserSeconds = 0.0000001 * EncodeFILETIME (&ftUser);
142 SystemSeconds = 0.0000001 * EncodeFILETIME (&ftKernel);
149 //=======================================================================
150 //function : GetThreadCPU
152 //=======================================================================
153 void OSD_Chronometer::GetThreadCPU (Standard_Real& UserSeconds, Standard_Real& SystemSeconds)
156 FILETIME ftStart, ftExit, ftKernel, ftUser;
157 ::GetThreadTimes (GetCurrentThread(), &ftStart, &ftExit, &ftKernel, &ftUser);
158 UserSeconds = 0.0000001 * EncodeFILETIME (&ftUser);
159 SystemSeconds = 0.0000001 * EncodeFILETIME (&ftKernel);
168 // ====================== PLATFORM-INDEPENDENT PART ========================
170 //=======================================================================
171 //function : OSD_Chronometer
173 //=======================================================================
174 OSD_Chronometer::OSD_Chronometer(const Standard_Boolean ThisThreadOnly)
176 ThreadOnly = ThisThreadOnly;
177 Start_user = Start_sys = 0.;
178 Cumul_user = Cumul_sys = 0.;
179 Stopped = Standard_True;
182 //=======================================================================
183 //function : ~OSD_Chronometer
184 //purpose : Destructor
185 //=======================================================================
186 OSD_Chronometer::~OSD_Chronometer()
190 //=======================================================================
193 //=======================================================================
194 void OSD_Chronometer::Reset ()
196 Stopped = Standard_True;
197 Start_user = Start_sys = 0.;
198 Cumul_user = Cumul_sys = 0.;
202 //=======================================================================
205 //=======================================================================
206 void OSD_Chronometer::Restart ()
212 //=======================================================================
215 //=======================================================================
216 void OSD_Chronometer::Stop ()
219 Standard_Real Curr_user, Curr_sys;
221 GetThreadCPU (Curr_user, Curr_sys);
223 GetProcessCPU (Curr_user, Curr_sys);
225 Cumul_user += Curr_user - Start_user;
226 Cumul_sys += Curr_sys - Start_sys;
228 Stopped = Standard_True;
230 // else cerr << "WARNING: OSD_Chronometer already stopped !\n" << flush;
233 //=======================================================================
236 //=======================================================================
237 void OSD_Chronometer::Start ()
241 GetThreadCPU (Start_user, Start_sys);
243 GetProcessCPU (Start_user, Start_sys);
245 Stopped = Standard_False;
247 // else cerr << "WARNING: OSD_Chronometer already running !\n" << flush;
250 //=======================================================================
253 //=======================================================================
254 void OSD_Chronometer::Show() const
259 //=======================================================================
262 //=======================================================================
263 void OSD_Chronometer::Show (Standard_OStream& os) const
265 Standard_Real aCumulUserSec = Cumul_user;
266 Standard_Real aCumulSysSec = Cumul_sys;
269 Standard_Real aCurrUser, aCurrSys;
271 GetThreadCPU (aCurrUser, aCurrSys);
273 GetProcessCPU (aCurrUser, aCurrSys);
275 aCumulUserSec += aCurrUser - Start_user;
276 aCumulSysSec += aCurrSys - Start_sys;
279 std::streamsize prec = os.precision (12);
280 os << "CPU user time: " << aCumulUserSec << " seconds " << endl;
281 os << "CPU system time: " << aCumulSysSec << " seconds " << endl;
285 //=======================================================================
287 //purpose : Returns cpu user time
288 //=======================================================================
289 void OSD_Chronometer::Show (Standard_Real& theUserSec) const
291 theUserSec = Cumul_user;
297 Standard_Real aCurrUser, aCurrSys;
299 GetThreadCPU (aCurrUser, aCurrSys);
301 GetProcessCPU (aCurrUser, aCurrSys);
303 theUserSec += aCurrUser - Start_user;
306 //=======================================================================
308 //purpose : Returns both user and system cpu times
309 //=======================================================================
310 void OSD_Chronometer::Show (Standard_Real& theUserSec,
311 Standard_Real& theSystemSec) const
313 theUserSec = Cumul_user;
314 theSystemSec = Cumul_sys;
320 Standard_Real aCurrUser, aCurrSys;
322 GetThreadCPU (aCurrUser, aCurrSys);
324 GetProcessCPU (aCurrUser, aCurrSys);
326 theUserSec += aCurrUser - Start_user;
327 theSystemSec += aCurrSys - Start_sys;