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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Michel Dagenais |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License Version 2 as |
6 | * published by the Free Software Foundation; |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License |
14 | * along with this program; if not, write to the Free Software |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
16 | * MA 02111-1307, USA. |
17 | */ |
18 | |
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19 | #ifndef STATS_H |
20 | #define STATS_H |
21 | |
22 | #include <glib.h> |
23 | #include <lttv/state.h> |
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24 | |
25 | /* The statistics are for a complete time interval. These structures differ |
26 | from the system state since they relate to static components of the |
27 | system (all processes which existed instead of just the currently |
28 | existing processes). |
29 | |
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30 | The basic attributes tree to gather for several different execution modes |
31 | (e.g., user mode, syscall, irq), thereafter called the "events tree", |
32 | contains the following attributes: the number of events of each type, |
33 | the total number of events, the number of bytes written, the time spent |
34 | executing, waiting for a resource, waiting for a cpu, and possibly many |
35 | others. The name "facility-event_type" below is to be replaced |
36 | by specific event types (e.g., core-schedchange, code-syscall_entry...). |
37 | |
38 | event_types/ |
39 | "facility-event_type" |
40 | events_count |
41 | cpu_time |
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42 | cumulative_cpu_time |
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43 | elapsed_time |
44 | wait_time |
45 | bytes_written |
46 | packets_sent |
47 | ... |
48 | |
49 | The events for several different execution modes are joined together to |
50 | form the "execution modes tree". The name "execution mode" is to be replaced |
51 | by "system call", "trap", "irq", "user mode" or "kernel thread". |
52 | The name "submode" is to be replaced by the specific system call, trap or |
53 | irq name. The "submode" is an empty string if none is applicable, which is |
54 | the case for "user mode" and "kernel thread". |
55 | |
56 | An "events tree" for each "execution mode" contains the sum for all its |
57 | different submodes. An "events tree" in the "execution modes tree" contains |
58 | the sum for all its different execution modes. |
59 | |
60 | mode_types/ |
61 | "execution mode"/ |
62 | submodes/ |
63 | "submode"/ |
64 | Events Tree |
65 | events/ |
66 | Event Tree |
67 | events/ |
68 | Events Tree |
69 | |
70 | Each trace set contains an "execution modes tree". While the traces |
71 | come from possibly different systems, which may differ in their system |
72 | calls..., most of the system calls will have the same name, even if their |
73 | actual internal numeric id differs. Categories such as cpu id and process |
74 | id are not kept since these are specific to each system. When several |
75 | traces are taken from the same system, these categories may make sense and |
76 | could eventually be considered. |
77 | |
78 | Each trace contains a global "execution modes tree", one for each |
79 | cpu and process, and one for each process/cpu combination. The name |
80 | "cpu number" stands for the cpu identifier, and "process_id-start_time" |
81 | is a unique process identifier composed of the process id |
82 | (unique at any given time but which may be reused over time) concatenated |
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83 | with the process start time. Each process has a "functions" tree which |
84 | contains each process'function address (when the information is available). |
85 | If not, only the 0x0 function will appear. |
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86 | |
87 | modes/ |
88 | Execution Modes Tree |
89 | cpu/ |
90 | "cpu number"/ |
91 | Execution Modes Tree |
92 | processes/ |
93 | "process_id-start_time"/ |
94 | exec_file_name |
95 | parent |
96 | start_time |
97 | end_time |
98 | modes/ |
99 | Execution Modes Tree |
100 | cpu/ |
101 | "cpu number"/ |
102 | Execution Modes Tree |
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103 | functions/ |
104 | "function address"/ |
105 | Execution Modes Tree |
106 | functions/ |
107 | "function address"/ |
108 | Execution Modes Tree |
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109 | |
110 | All the events and derived values (cpu, elapsed and wait time) are |
111 | added during the trace analysis in the relevant |
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112 | trace/processes/ * /cpu/ * /functions/ * /mode_types/ * /submodes/ * |
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113 | "events tree". To achieve this efficiently, each tracefile context |
114 | contains a pointer to the current relevant "events tree" and "event_types" |
115 | tree within it. |
116 | |
117 | Once all the events are processed, the total number of events is computed |
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118 | within each |
119 | trace/processes/ * /cpu/ * /functions/ * /mode_types/ * /submodes/ *. |
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120 | Then, the "events tree" are summed for all submodes within each mode type |
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121 | and for all mode types within a processes/ * /cpu/ * /functions/ * |
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122 | "execution modes tree". |
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123 | |
124 | Then, the "execution modes trees" for all functions within a |
125 | trace/processes/ * /cpu for all cpu within a process, for all processes, |
126 | and for all traces are computed. Separately, the "execution modes tree" for |
127 | each function (over all cpus) for all processes, and for all traces are |
128 | summed in the trace/processes/ * /functions/ * subtree. |
129 | |
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130 | Finally, the "execution modes trees" for all cpu within a process, |
131 | for all processes, and for all traces are computed. Separately, |
132 | the "execution modes tree" for each cpu but for all processes within a |
133 | trace are summed in the trace / cpu / * subtrees. |
134 | |
135 | */ |
136 | |
137 | |
138 | /* The various statistics branch names are GQuarks. They are pre-computed for |
139 | easy and efficient access */ |
140 | |
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141 | #define LTTV_PRIO_STATS_BEFORE_STATE LTTV_PRIO_STATE-5 |
142 | #define LTTV_PRIO_STATS_AFTER_STATE LTTV_PRIO_STATE+5 |
143 | |
144 | |
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145 | extern GQuark |
146 | LTTV_STATS_PROCESS_UNKNOWN, |
147 | LTTV_STATS_PROCESSES, |
148 | LTTV_STATS_CPU, |
149 | LTTV_STATS_MODE_TYPES, |
150 | LTTV_STATS_SUBMODES, |
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151 | LTTV_STATS_FUNCTIONS, |
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152 | LTTV_STATS_EVENT_TYPES, |
153 | LTTV_STATS_CPU_TIME, |
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154 | LTTV_STATS_CUMULATIVE_CPU_TIME, |
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155 | LTTV_STATS_ELAPSED_TIME, |
156 | LTTV_STATS_EVENTS, |
157 | LTTV_STATS_EVENTS_COUNT, |
158 | LTTV_STATS_BEFORE_HOOKS, |
159 | LTTV_STATS_AFTER_HOOKS; |
160 | |
161 | |
162 | typedef struct _LttvTracesetStats LttvTracesetStats; |
163 | typedef struct _LttvTracesetStatsClass LttvTracesetStatsClass; |
164 | |
165 | typedef struct _LttvTraceStats LttvTraceStats; |
166 | typedef struct _LttvTraceStatsClass LttvTraceStatsClass; |
167 | |
168 | typedef struct _LttvTracefileStats LttvTracefileStats; |
169 | typedef struct _LttvTracefileStatsClass LttvTracefileStatsClass; |
170 | |
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171 | |
172 | |
173 | // Hook wrapper. call_data is a trace context. |
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174 | gboolean lttv_stats_hook_add_event_hooks(void *hook_data, void *call_data); |
175 | void lttv_stats_add_event_hooks(LttvTracesetStats *self); |
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176 | |
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177 | // Hook wrapper. call_data is a trace context. |
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178 | gboolean lttv_stats_hook_remove_event_hooks(void *hook_data, void *call_data); |
179 | void lttv_stats_remove_event_hooks(LttvTracesetStats *self); |
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180 | |
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181 | gboolean lttv_stats_sum_traceset_hook(void *hook_data, void *call_data); |
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182 | void lttv_stats_sum_traceset(LttvTracesetStats *self, LttTime current_time); |
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183 | |
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184 | void lttv_stats_sum_trace(LttvTraceStats *self, LttvAttribute *ts_stats, |
185 | LttTime current_time); |
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186 | |
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187 | /* Reset all statistics containers */ |
188 | void lttv_stats_reset(LttvTracesetStats *self); |
189 | |
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190 | |
191 | /* The LttvTracesetStats, LttvTraceStats and LttvTracefileStats types |
192 | inherit from the corresponding State objects defined in state.h.. */ |
193 | |
194 | #define LTTV_TRACESET_STATS_TYPE (lttv_traceset_stats_get_type ()) |
195 | #define LTTV_TRACESET_STATS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACESET_STATS_TYPE, LttvTracesetStats)) |
196 | #define LTTV_TRACESET_STATS_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACESET_STATS_TYPE, LttvTracesetStatsClass)) |
197 | #define LTTV_IS_TRACESET_STATS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACESET_STATS_TYPE)) |
198 | #define LTTV_IS_TRACESET_STATS_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACESET_STATS_TYPE)) |
199 | #define LTTV_TRACESET_STATS_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACESET_STATS_TYPE, LttvTracesetStatsClass)) |
200 | |
201 | struct _LttvTracesetStats { |
202 | LttvTracesetState parent; |
203 | |
204 | LttvAttribute *stats; |
205 | }; |
206 | |
207 | struct _LttvTracesetStatsClass { |
208 | LttvTracesetStateClass parent; |
209 | }; |
210 | |
211 | GType lttv_traceset_stats_get_type (void); |
212 | |
213 | |
214 | #define LTTV_TRACE_STATS_TYPE (lttv_trace_stats_get_type ()) |
215 | #define LTTV_TRACE_STATS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACE_STATS_TYPE, LttvTraceStats)) |
216 | #define LTTV_TRACE_STATS_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACE_STATS_TYPE, LttvTraceStatsClass)) |
217 | #define LTTV_IS_TRACE_STATS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACE_STATS_TYPE)) |
218 | #define LTTV_IS_TRACE_STATS_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACE_STATS_TYPE)) |
219 | #define LTTV_TRACE_STATS_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACE_STATS_TYPE, LttvTraceStatsClass)) |
220 | |
221 | struct _LttvTraceStats { |
222 | LttvTraceState parent; |
223 | |
224 | LttvAttribute *stats; |
225 | }; |
226 | |
227 | struct _LttvTraceStatsClass { |
228 | LttvTraceStateClass parent; |
229 | }; |
230 | |
231 | GType lttv_trace_stats_get_type (void); |
232 | |
233 | |
234 | #define LTTV_TRACEFILE_STATS_TYPE (lttv_tracefile_stats_get_type ()) |
235 | #define LTTV_TRACEFILE_STATS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACEFILE_STATS_TYPE, LttvTracefileStats)) |
236 | #define LTTV_TRACEFILE_STATS_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACEFILE_STATS_TYPE, LttvTracefileStatsClass)) |
237 | #define LTTV_IS_TRACEFILE_STATS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACEFILE_STATS_TYPE)) |
238 | #define LTTV_IS_TRACEFILE_STATS_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACEFILE_STATS_TYPE)) |
239 | #define LTTV_TRACEFILE_STATS_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACEFILE_STATS_TYPE, LttvTracefileStatsClass)) |
240 | |
241 | struct _LttvTracefileStats { |
242 | LttvTracefileState parent; |
243 | |
244 | LttvAttribute *stats; |
245 | LttvAttribute *current_events_tree; |
246 | LttvAttribute *current_event_types_tree; |
247 | }; |
248 | |
249 | struct _LttvTracefileStatsClass { |
250 | LttvTracefileStateClass parent; |
251 | }; |
252 | |
253 | GType lttv_tracefile_stats_get_type (void); |
254 | |
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255 | struct sum_traceset_closure { |
256 | LttvTracesetStats *tss; |
257 | LttTime current_time; |
258 | }; |
259 | |
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260 | |
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261 | #endif // STATS_H |