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annotate third_party/luajit/src/lj_profile.c @ 208:5d3e116dd745

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[MrJuneJune] made it more mobile friendly.
author MrJuneJune <me@mrjunejune.com>
date Sun, 15 Feb 2026 12:33:54 -0800
parents 94705b5986b3
children
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178
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1 /*
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2 ** Low-overhead profiling.
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3 ** Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h
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4 */
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5
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6 #define lj_profile_c
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7 #define LUA_CORE
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8
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9 #include "lj_obj.h"
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10
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11 #if LJ_HASPROFILE
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12
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13 #include "lj_buf.h"
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14 #include "lj_frame.h"
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15 #include "lj_debug.h"
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16 #include "lj_dispatch.h"
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17 #if LJ_HASJIT
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18 #include "lj_jit.h"
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19 #include "lj_trace.h"
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20 #endif
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21 #include "lj_profile.h"
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22
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23 #include "luajit.h"
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24
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25 #if LJ_PROFILE_SIGPROF
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26
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27 #include <sys/time.h>
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28 #include <signal.h>
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29 #define profile_lock(ps) UNUSED(ps)
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30 #define profile_unlock(ps) UNUSED(ps)
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31
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32 #elif LJ_PROFILE_PTHREAD
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33
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34 #include <pthread.h>
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35 #include <time.h>
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36 #if LJ_TARGET_PS3
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37 #include <sys/timer.h>
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38 #endif
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39 #define profile_lock(ps) pthread_mutex_lock(&ps->lock)
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40 #define profile_unlock(ps) pthread_mutex_unlock(&ps->lock)
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41
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42 #elif LJ_PROFILE_WTHREAD
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43
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44 #define WIN32_LEAN_AND_MEAN
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45 #if LJ_TARGET_XBOX360
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46 #include <xtl.h>
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47 #include <xbox.h>
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48 #else
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49 #include <windows.h>
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50 #endif
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51 typedef unsigned int (WINAPI *WMM_TPFUNC)(unsigned int);
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52 #define profile_lock(ps) EnterCriticalSection(&ps->lock)
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53 #define profile_unlock(ps) LeaveCriticalSection(&ps->lock)
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54
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55 #endif
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56
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57 /* Profiler state. */
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58 typedef struct ProfileState {
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59 global_State *g; /* VM state that started the profiler. */
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60 luaJIT_profile_callback cb; /* Profiler callback. */
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61 void *data; /* Profiler callback data. */
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62 SBuf sb; /* String buffer for stack dumps. */
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63 int interval; /* Sample interval in milliseconds. */
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64 int samples; /* Number of samples for next callback. */
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65 int vmstate; /* VM state when profile timer triggered. */
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66 #if LJ_PROFILE_SIGPROF
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67 struct sigaction oldsa; /* Previous SIGPROF state. */
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68 #elif LJ_PROFILE_PTHREAD
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69 pthread_mutex_t lock; /* g->hookmask update lock. */
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70 pthread_t thread; /* Timer thread. */
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71 int abort; /* Abort timer thread. */
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72 #elif LJ_PROFILE_WTHREAD
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73 #if LJ_TARGET_WINDOWS
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74 HINSTANCE wmm; /* WinMM library handle. */
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75 WMM_TPFUNC wmm_tbp; /* WinMM timeBeginPeriod function. */
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76 WMM_TPFUNC wmm_tep; /* WinMM timeEndPeriod function. */
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77 #endif
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78 CRITICAL_SECTION lock; /* g->hookmask update lock. */
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79 HANDLE thread; /* Timer thread. */
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80 int abort; /* Abort timer thread. */
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81 #endif
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82 } ProfileState;
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83
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84 /* Sadly, we have to use a static profiler state.
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85 **
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86 ** The SIGPROF variant needs a static pointer to the global state, anyway.
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87 ** And it would be hard to extend for multiple threads. You can still use
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88 ** multiple VMs in multiple threads, but only profile one at a time.
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89 */
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90 static ProfileState profile_state;
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91
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92 /* Default sample interval in milliseconds. */
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93 #define LJ_PROFILE_INTERVAL_DEFAULT 10
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94
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95 /* -- Profiler/hook interaction ------------------------------------------- */
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96
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97 #if !LJ_PROFILE_SIGPROF
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98 void LJ_FASTCALL lj_profile_hook_enter(global_State *g)
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99 {
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100 ProfileState *ps = &profile_state;
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101 if (ps->g) {
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102 profile_lock(ps);
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103 hook_enter(g);
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104 profile_unlock(ps);
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105 } else {
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106 hook_enter(g);
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107 }
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108 }
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109
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110 void LJ_FASTCALL lj_profile_hook_leave(global_State *g)
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111 {
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112 ProfileState *ps = &profile_state;
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113 if (ps->g) {
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114 profile_lock(ps);
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115 hook_leave(g);
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116 profile_unlock(ps);
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117 } else {
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118 hook_leave(g);
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119 }
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120 }
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121 #endif
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122
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123 /* -- Profile callbacks --------------------------------------------------- */
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124
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125 /* Callback from profile hook (HOOK_PROFILE already cleared). */
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126 void LJ_FASTCALL lj_profile_interpreter(lua_State *L)
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127 {
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128 ProfileState *ps = &profile_state;
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129 global_State *g = G(L);
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130 uint8_t mask;
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131 profile_lock(ps);
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132 mask = (g->hookmask & ~HOOK_PROFILE);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
133 if (!(mask & HOOK_VMEVENT)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
134 int samples = ps->samples;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
135 ps->samples = 0;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
136 g->hookmask = HOOK_VMEVENT;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
137 lj_dispatch_update(g);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
138 profile_unlock(ps);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
139 ps->cb(ps->data, L, samples, ps->vmstate); /* Invoke user callback. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
140 profile_lock(ps);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
141 mask |= (g->hookmask & HOOK_PROFILE);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
142 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
143 g->hookmask = mask;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
144 lj_dispatch_update(g);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
145 profile_unlock(ps);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
146 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
147
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
148 /* Trigger profile hook. Asynchronous call from OS-specific profile timer. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
149 static void profile_trigger(ProfileState *ps)
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
150 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
151 global_State *g = ps->g;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
152 uint8_t mask;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
153 profile_lock(ps);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
154 ps->samples++; /* Always increment number of samples. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
155 mask = g->hookmask;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
156 if (!(mask & (HOOK_PROFILE|HOOK_VMEVENT|HOOK_GC))) { /* Set profile hook. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
157 int st = g->vmstate;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
158 ps->vmstate = st >= 0 ? 'N' :
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
159 st == ~LJ_VMST_INTERP ? 'I' :
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
160 st == ~LJ_VMST_C ? 'C' :
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
161 st == ~LJ_VMST_GC ? 'G' : 'J';
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
162 g->hookmask = (mask | HOOK_PROFILE);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
163 lj_dispatch_update(g);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
164 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
165 profile_unlock(ps);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
166 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
167
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
168 /* -- OS-specific profile timer handling ---------------------------------- */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
169
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
170 #if LJ_PROFILE_SIGPROF
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
171
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
172 /* SIGPROF handler. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
173 static void profile_signal(int sig)
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
174 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
175 UNUSED(sig);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
176 profile_trigger(&profile_state);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
177 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
178
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
179 /* Start profiling timer. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
180 static void profile_timer_start(ProfileState *ps)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
181 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
182 int interval = ps->interval;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
183 struct itimerval tm;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
184 struct sigaction sa;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
185 tm.it_value.tv_sec = tm.it_interval.tv_sec = interval / 1000;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
186 tm.it_value.tv_usec = tm.it_interval.tv_usec = (interval % 1000) * 1000;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
187 setitimer(ITIMER_PROF, &tm, NULL);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
188 #if LJ_TARGET_QNX
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
189 sa.sa_flags = 0;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
190 #else
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
191 sa.sa_flags = SA_RESTART;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
192 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
193 sa.sa_handler = profile_signal;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
194 sigemptyset(&sa.sa_mask);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
195 sigaction(SIGPROF, &sa, &ps->oldsa);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
196 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
197
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
198 /* Stop profiling timer. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
199 static void profile_timer_stop(ProfileState *ps)
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
200 {
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
201 struct itimerval tm;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
202 tm.it_value.tv_sec = tm.it_interval.tv_sec = 0;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
203 tm.it_value.tv_usec = tm.it_interval.tv_usec = 0;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
204 setitimer(ITIMER_PROF, &tm, NULL);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
205 sigaction(SIGPROF, &ps->oldsa, NULL);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
206 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
207
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
208 #elif LJ_PROFILE_PTHREAD
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
209
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
210 /* POSIX timer thread. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
211 static void *profile_thread(ProfileState *ps)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
212 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
213 int interval = ps->interval;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
214 #if !LJ_TARGET_PS3
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
215 struct timespec ts;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
216 ts.tv_sec = interval / 1000;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
217 ts.tv_nsec = (interval % 1000) * 1000000;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
218 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
219 while (1) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
220 #if LJ_TARGET_PS3
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
221 sys_timer_usleep(interval * 1000);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
222 #else
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
223 nanosleep(&ts, NULL);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
224 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
225 if (ps->abort) break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
226 profile_trigger(ps);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
227 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
228 return NULL;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
229 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
230
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
231 /* Start profiling timer thread. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
232 static void profile_timer_start(ProfileState *ps)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
233 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
234 pthread_mutex_init(&ps->lock, 0);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
235 ps->abort = 0;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
236 pthread_create(&ps->thread, NULL, (void *(*)(void *))profile_thread, ps);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
237 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
238
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
239 /* Stop profiling timer thread. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
240 static void profile_timer_stop(ProfileState *ps)
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
241 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
242 ps->abort = 1;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
243 pthread_join(ps->thread, NULL);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
244 pthread_mutex_destroy(&ps->lock);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
245 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
246
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
247 #elif LJ_PROFILE_WTHREAD
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
248
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
249 /* Windows timer thread. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
250 static DWORD WINAPI profile_thread(void *psx)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
251 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
252 ProfileState *ps = (ProfileState *)psx;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
253 int interval = ps->interval;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
254 #if LJ_TARGET_WINDOWS && !LJ_TARGET_UWP
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
255 ps->wmm_tbp(interval);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
256 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
257 while (1) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
258 Sleep(interval);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
259 if (ps->abort) break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
260 profile_trigger(ps);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
261 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
262 #if LJ_TARGET_WINDOWS && !LJ_TARGET_UWP
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
263 ps->wmm_tep(interval);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
264 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
265 return 0;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
266 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
267
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
268 /* Start profiling timer thread. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
269 static void profile_timer_start(ProfileState *ps)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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270 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
271 #if LJ_TARGET_WINDOWS && !LJ_TARGET_UWP
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
272 if (!ps->wmm) { /* Load WinMM library on-demand. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
273 ps->wmm = LJ_WIN_LOADLIBA("winmm.dll");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
274 if (ps->wmm) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
275 ps->wmm_tbp = (WMM_TPFUNC)GetProcAddress(ps->wmm, "timeBeginPeriod");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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276 ps->wmm_tep = (WMM_TPFUNC)GetProcAddress(ps->wmm, "timeEndPeriod");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
277 if (!ps->wmm_tbp || !ps->wmm_tep) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
278 ps->wmm = NULL;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
279 return;
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MrJuneJune <me@mrjunejune.com>
parents:
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280 }
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MrJuneJune <me@mrjunejune.com>
parents:
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281 }
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MrJuneJune <me@mrjunejune.com>
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diff changeset
282 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
283 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
284 InitializeCriticalSection(&ps->lock);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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285 ps->abort = 0;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
286 ps->thread = CreateThread(NULL, 0, profile_thread, ps, 0, NULL);
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MrJuneJune <me@mrjunejune.com>
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287 }
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
288
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
289 /* Stop profiling timer thread. */
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MrJuneJune <me@mrjunejune.com>
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diff changeset
290 static void profile_timer_stop(ProfileState *ps)
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MrJuneJune <me@mrjunejune.com>
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291 {
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MrJuneJune <me@mrjunejune.com>
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292 ps->abort = 1;
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MrJuneJune <me@mrjunejune.com>
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diff changeset
293 WaitForSingleObject(ps->thread, INFINITE);
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294 DeleteCriticalSection(&ps->lock);
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MrJuneJune <me@mrjunejune.com>
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diff changeset
295 }
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MrJuneJune <me@mrjunejune.com>
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296
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MrJuneJune <me@mrjunejune.com>
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297 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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298
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MrJuneJune <me@mrjunejune.com>
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299 /* -- Public profiling API ------------------------------------------------ */
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300
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
301 /* Start profiling. */
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diff changeset
302 LUA_API void luaJIT_profile_start(lua_State *L, const char *mode,
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parents:
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303 luaJIT_profile_callback cb, void *data)
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parents:
diff changeset
304 {
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
305 ProfileState *ps = &profile_state;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
306 int interval = LJ_PROFILE_INTERVAL_DEFAULT;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
307 while (*mode) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
308 int m = *mode++;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
309 switch (m) {
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
310 case 'i':
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MrJuneJune <me@mrjunejune.com>
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diff changeset
311 interval = 0;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
312 while (*mode >= '0' && *mode <= '9')
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
313 interval = interval * 10 + (*mode++ - '0');
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
314 if (interval <= 0) interval = 1;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
315 break;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
316 #if LJ_HASJIT
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
317 case 'l': case 'f':
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
318 L2J(L)->prof_mode = m;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
319 lj_trace_flushall(L);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
320 break;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
321 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
322 default: /* Ignore unknown mode chars. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
323 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
324 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
325 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
326 if (ps->g) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
327 luaJIT_profile_stop(L);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
328 if (ps->g) return; /* Profiler in use by another VM. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
329 }
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
330 ps->g = G(L);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
331 ps->interval = interval;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
332 ps->cb = cb;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
333 ps->data = data;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
334 ps->samples = 0;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
335 lj_buf_init(L, &ps->sb);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
336 profile_timer_start(ps);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
337 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
338
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
339 /* Stop profiling. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
340 LUA_API void luaJIT_profile_stop(lua_State *L)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
341 {
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
342 ProfileState *ps = &profile_state;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
343 global_State *g = ps->g;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
344 if (G(L) == g) { /* Only stop profiler if started by this VM. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
345 profile_timer_stop(ps);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
346 g->hookmask &= ~HOOK_PROFILE;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
347 lj_dispatch_update(g);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
348 #if LJ_HASJIT
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
349 G2J(g)->prof_mode = 0;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
350 lj_trace_flushall(L);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
351 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
352 lj_buf_free(g, &ps->sb);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
353 ps->sb.w = ps->sb.e = NULL;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
354 ps->g = NULL;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
355 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
356 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
357
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
358 /* Return a compact stack dump. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
359 LUA_API const char *luaJIT_profile_dumpstack(lua_State *L, const char *fmt,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
360 int depth, size_t *len)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
361 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
362 ProfileState *ps = &profile_state;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
363 SBuf *sb = &ps->sb;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
364 setsbufL(sb, L);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
365 lj_buf_reset(sb);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
366 lj_debug_dumpstack(L, sb, fmt, depth);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
367 *len = (size_t)sbuflen(sb);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
368 return sb->b;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
369 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
370
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
371 #endif