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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2005 Peter Ho |
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 | */ |
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18 | |
19 | /****************************************************************** |
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20 | |
21 | The standard deviation calculation is based on: |
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22 | http://en.wikipedia.org/wiki/Standard_deviation |
23 | |
e5258c09 |
24 | Standard_deviation = sqrt(1/N Sum ((xi -Xa)^2)) |
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25 | |
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26 | To compute the standard deviation, we need to make EventRequests to LTTV. In |
27 | the first EventRequest, we compute the average duration (Xa) and the |
28 | frequency (N) of each IrqID. We store the information calculated in the first |
29 | EventRequest in an array called FirstRequestIrqExit. |
30 | In the second EventRequest, we compute the Sum ((xi -Xa)^2) and store this information |
31 | in a array called SumArray. The function CalculateStandardDeviation() uses FirstRequestIrqExit |
32 | and SumArray arrays to calculate the standard deviation. |
33 | |
dc06b1bc |
34 | *******************************************************************/ |
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35 | |
36 | |
37 | |
38 | #include <math.h> |
39 | #include <glib.h> |
40 | #include <gtk/gtk.h> |
41 | #include <gdk/gdk.h> |
42 | #include <stdio.h> |
43 | #include <stdlib.h> |
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44 | #include <math.h> |
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45 | #include <string.h> |
46 | #include <ltt/ltt.h> |
47 | #include <ltt/event.h> |
48 | #include <ltt/type.h> |
49 | #include <ltt/trace.h> |
50 | #include <ltt/facility.h> |
51 | #include <lttv/module.h> |
52 | #include <lttv/hook.h> |
53 | #include <lttv/tracecontext.h> |
54 | #include <lttv/state.h> |
55 | #include <lttv/filter.h> |
56 | #include <lttvwindow/lttvwindow.h> |
57 | #include <ltt/time.h> |
58 | |
59 | #include "hInterruptsInsert.xpm" |
60 | |
61 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
62 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
63 | #define NO_ITEMS 0 |
64 | |
446b4179 |
65 | typedef struct |
66 | { |
67 | LttTime duration; |
68 | LttTime start_time; |
69 | LttTime end_time; |
70 | }MaxDuration; |
71 | |
5f5119ee |
72 | typedef struct { |
73 | guint cpu_id; |
74 | guint id; |
75 | guint frequency; |
76 | LttTime total_duration; |
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77 | guint average_duration; |
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78 | MaxDuration max_irq_handler; |
dc06b1bc |
79 | |
5f5119ee |
80 | }Irq; |
81 | |
82 | typedef struct { |
83 | guint id; |
84 | guint cpu_id; |
85 | LttTime event_time; |
86 | }irq_entry; |
87 | |
dc06b1bc |
88 | |
89 | typedef struct |
90 | { |
91 | guint irqId; |
92 | guint frequency; |
93 | guint64 sumOfDurations; |
94 | |
95 | }SumId; |
96 | |
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97 | enum type_t { |
98 | IRQ_ENTRY, |
99 | IRQ_EXIT |
100 | }; |
101 | |
102 | /** Array containing instanced objects. Used when module is unloaded */ |
103 | static GSList *interrupt_data_list = NULL ; |
104 | |
105 | |
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106 | #define TRACE_NUMBER 0 |
107 | |
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108 | typedef struct _InterruptEventData { |
109 | |
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110 | /*Graphical Widgets */ |
111 | GtkWidget * ScrollWindow; |
112 | GtkListStore *ListStore; |
113 | GtkWidget *Hbox; |
114 | GtkWidget *TreeView; |
115 | GtkTreeSelection *SelectionTree; |
116 | |
117 | Tab * tab; /* tab that contains this plug-in*/ |
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118 | LttvHooks * event_hooks; |
119 | LttvHooks * hooks_trace_after; |
120 | LttvHooks * hooks_trace_before; |
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121 | TimeWindow time_window; |
f2ec7aa9 |
122 | LttvHooksById * event_by_id_hooks; |
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123 | GArray *FirstRequestIrqExit; |
124 | GArray *FirstRequestIrqEntry; |
125 | GArray *SecondRequestIrqEntry; |
126 | GArray *SecondRequestIrqExit; |
127 | GArray *SumArray; |
128 | |
5f5119ee |
129 | } InterruptEventData ; |
130 | |
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131 | |
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132 | /* Function prototypes */ |
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133 | |
134 | static gboolean interrupt_update_time_window(void * hook_data, void * call_data); |
f2ec7aa9 |
135 | static GtkWidget *interrupts(Tab *tab); |
136 | static InterruptEventData *system_info(Tab *tab); |
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137 | void interrupt_destructor(InterruptEventData *event_viewer_data); |
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138 | static void FirstRequest(InterruptEventData *event_data ); |
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139 | static guint64 get_interrupt_id(LttEvent *e); |
5f5119ee |
140 | static gboolean trace_header(void *hook_data, void *call_data); |
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141 | static gboolean DisplayViewer (void *hook_data, void *call_data); |
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142 | static void CalculateData(LttTime time_exit, guint cpu_id, InterruptEventData *event_data); |
143 | static void TotalDurationMaxIrqDuration(irq_entry *e, LttTime time_exit, GArray *FirstRequestIrqExit); |
dc06b1bc |
144 | static gboolean FirstRequestIrqEntryCallback(void *hook_data, void *call_data); |
145 | static gboolean FirstRequestIrqExitCallback(void *hook_data, void *call_data); |
146 | static gboolean SecondRequest(void *hook_data, void *call_data); |
147 | static void CalculateAverageDurationForEachIrqId(InterruptEventData *event_data); |
148 | static gboolean SecondRequestIrqEntryCallback(void *hook_data, void *call_data); |
149 | static gboolean SecondRequestIrqExitCallback(void *hook_data, void *call_data); |
150 | static void CalculateXi(LttEvent *event, InterruptEventData *event_data); |
151 | static void SumItems(gint irq_id, LttTime Xi, InterruptEventData *event_data); |
152 | static int CalculateStandardDeviation(gint id, InterruptEventData *event_data); |
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153 | static int FrequencyInHZ(gint frequency, TimeWindow time_window); |
154 | |
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155 | /* Enumeration of the columns */ |
156 | enum{ |
157 | CPUID_COLUMN, |
158 | IRQ_ID_COLUMN, |
159 | FREQUENCY_COLUMN, |
160 | DURATION_COLUMN, |
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161 | DURATION_STANDARD_DEV_COLUMN, |
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162 | MAX_IRQ_HANDLER_COLUMN, |
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163 | AVERAGE_PERIOD, |
164 | PERIOD_STANDARD_DEV_COLUMN, |
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165 | N_COLUMNS |
166 | }; |
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167 | |
168 | |
169 | |
170 | /** |
171 | * init function |
172 | * |
173 | * |
174 | * This is the entry point of the viewer. |
175 | * |
176 | */ |
177 | static void init() { |
178 | g_info("interrupts: init()"); |
179 | lttvwindow_register_constructor("interrupts", |
180 | "/", |
181 | "Insert Interrupts View", |
182 | hInterruptsInsert_xpm, |
183 | "Insert Interrupts View", |
184 | interrupts); |
185 | |
186 | } |
187 | |
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188 | |
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189 | /** |
f2ec7aa9 |
190 | * Constructor hook |
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191 | * |
5f5119ee |
192 | */ |
f2ec7aa9 |
193 | static GtkWidget *interrupts(Tab * tab) |
194 | { |
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195 | |
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196 | InterruptEventData* event_data = system_info(tab) ; |
197 | if(event_data) |
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198 | return event_data->Hbox; |
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199 | else |
200 | return NULL; |
201 | } |
202 | |
f2ec7aa9 |
203 | /** |
204 | * This function initializes the Event Viewer functionnality through the |
205 | * GTK API. |
206 | */ |
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207 | InterruptEventData *system_info(Tab *tab) |
208 | { |
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209 | |
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210 | LttTime end; |
211 | GtkTreeViewColumn *column; |
212 | GtkCellRenderer *renderer; |
213 | InterruptEventData* event_viewer_data = g_new(InterruptEventData,1) ; |
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214 | |
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215 | event_viewer_data->tab = tab; |
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216 | |
217 | /*Get the current time frame from the main window */ |
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218 | event_viewer_data->time_window = lttvwindow_get_time_window(tab); |
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219 | |
220 | event_viewer_data->FirstRequestIrqExit = g_array_new(FALSE, FALSE, sizeof(Irq)); |
221 | event_viewer_data->FirstRequestIrqEntry = g_array_new(FALSE, FALSE, sizeof(irq_entry)); |
222 | |
223 | event_viewer_data->SecondRequestIrqEntry = g_array_new(FALSE, FALSE, sizeof(irq_entry)); |
224 | event_viewer_data->SecondRequestIrqExit = g_array_new(FALSE, FALSE, sizeof(Irq)); |
225 | |
226 | event_viewer_data->SumArray = g_array_new(FALSE, FALSE, sizeof(SumId)); |
227 | |
228 | |
f2ec7aa9 |
229 | /*Create tha main window for the viewer */ |
b3e7b125 |
230 | event_viewer_data->ScrollWindow = gtk_scrolled_window_new (NULL, NULL); |
231 | gtk_widget_show (event_viewer_data->ScrollWindow); |
5f5119ee |
232 | gtk_scrolled_window_set_policy( |
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233 | GTK_SCROLLED_WINDOW(event_viewer_data->ScrollWindow), |
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234 | GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC/*GTK_POLICY_NEVER*/); |
235 | |
236 | /* Create a model for storing the data list */ |
b3e7b125 |
237 | event_viewer_data->ListStore = gtk_list_store_new ( |
5f5119ee |
238 | N_COLUMNS, /* Total number of columns */ |
239 | G_TYPE_INT, /* CPUID */ |
240 | G_TYPE_INT, /* IRQ_ID */ |
241 | G_TYPE_INT, /* Frequency */ |
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242 | G_TYPE_UINT64, /* Duration */ |
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243 | G_TYPE_INT, /* standard deviation */ |
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244 | G_TYPE_STRING, /* Max IRQ handler */ |
245 | G_TYPE_DOUBLE, /* Average period */ |
246 | G_TYPE_DOUBLE /* period standard deviation */ |
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247 | ); |
248 | |
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249 | event_viewer_data->TreeView = gtk_tree_view_new_with_model (GTK_TREE_MODEL (event_viewer_data->ListStore)); |
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250 | |
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251 | g_object_unref (G_OBJECT (event_viewer_data->ListStore)); |
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252 | |
253 | renderer = gtk_cell_renderer_text_new (); |
254 | column = gtk_tree_view_column_new_with_attributes ("CPUID", |
255 | renderer, |
256 | "text", CPUID_COLUMN, |
257 | NULL); |
258 | gtk_tree_view_column_set_alignment (column, 0.0); |
259 | gtk_tree_view_column_set_fixed_width (column, 45); |
b3e7b125 |
260 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
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261 | |
262 | |
263 | renderer = gtk_cell_renderer_text_new (); |
264 | column = gtk_tree_view_column_new_with_attributes ("IrqId", |
265 | renderer, |
266 | "text", IRQ_ID_COLUMN, |
267 | NULL); |
268 | gtk_tree_view_column_set_alignment (column, 0.0); |
269 | gtk_tree_view_column_set_fixed_width (column, 220); |
b3e7b125 |
270 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
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271 | |
272 | renderer = gtk_cell_renderer_text_new (); |
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273 | column = gtk_tree_view_column_new_with_attributes ("Frequency (Hz)", |
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274 | renderer, |
275 | "text", FREQUENCY_COLUMN, |
276 | NULL); |
277 | gtk_tree_view_column_set_alignment (column, 1.0); |
278 | gtk_tree_view_column_set_fixed_width (column, 220); |
b3e7b125 |
279 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
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280 | |
281 | renderer = gtk_cell_renderer_text_new (); |
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282 | column = gtk_tree_view_column_new_with_attributes ("Total Duration (nsec)", |
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283 | renderer, |
284 | "text", DURATION_COLUMN, |
285 | NULL); |
286 | gtk_tree_view_column_set_alignment (column, 0.0); |
287 | gtk_tree_view_column_set_fixed_width (column, 145); |
b3e7b125 |
288 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
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289 | |
dc06b1bc |
290 | |
291 | renderer = gtk_cell_renderer_text_new (); |
292 | column = gtk_tree_view_column_new_with_attributes ("Duration standard deviation (nsec)", |
293 | renderer, |
294 | "text", DURATION_STANDARD_DEV_COLUMN, |
295 | NULL); |
296 | gtk_tree_view_column_set_alignment (column, 0.0); |
446b4179 |
297 | gtk_tree_view_column_set_fixed_width (column, 200); |
dc06b1bc |
298 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
299 | |
446b4179 |
300 | renderer = gtk_cell_renderer_text_new (); |
25c6412d |
301 | column = gtk_tree_view_column_new_with_attributes ("Max IRQ handler duration (nsec) [time interval]", |
446b4179 |
302 | renderer, |
303 | "text", MAX_IRQ_HANDLER_COLUMN, |
304 | NULL); |
305 | gtk_tree_view_column_set_alignment (column, 0.0); |
306 | gtk_tree_view_column_set_fixed_width (column, 250); |
307 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
dc06b1bc |
308 | |
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309 | renderer = gtk_cell_renderer_text_new (); |
310 | column = gtk_tree_view_column_new_with_attributes (" Average period (nsec)", |
311 | renderer, |
312 | "text", AVERAGE_PERIOD, |
313 | NULL); |
314 | gtk_tree_view_column_set_alignment (column, 0.0); |
315 | gtk_tree_view_column_set_fixed_width (column, 200); |
316 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
317 | |
318 | renderer = gtk_cell_renderer_text_new (); |
319 | column = gtk_tree_view_column_new_with_attributes ("Period standard deviation (nsec)", |
320 | renderer, |
321 | "text", PERIOD_STANDARD_DEV_COLUMN, |
322 | NULL); |
323 | gtk_tree_view_column_set_alignment (column, 0.0); |
324 | gtk_tree_view_column_set_fixed_width (column, 200); |
325 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
326 | |
327 | |
dc06b1bc |
328 | |
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329 | event_viewer_data->SelectionTree = gtk_tree_view_get_selection (GTK_TREE_VIEW (event_viewer_data->TreeView)); |
330 | gtk_tree_selection_set_mode (event_viewer_data->SelectionTree, GTK_SELECTION_SINGLE); |
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331 | |
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332 | gtk_container_add (GTK_CONTAINER (event_viewer_data->ScrollWindow), event_viewer_data->TreeView); |
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333 | |
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334 | event_viewer_data->Hbox = gtk_hbox_new(0, 0); |
335 | gtk_box_pack_start(GTK_BOX(event_viewer_data->Hbox), event_viewer_data->ScrollWindow, TRUE, TRUE, 0); |
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336 | |
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337 | gtk_widget_show(event_viewer_data->Hbox); |
338 | gtk_widget_show(event_viewer_data->TreeView); |
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339 | |
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340 | interrupt_data_list = g_slist_append(interrupt_data_list, event_viewer_data); |
f2ec7aa9 |
341 | /* Registration for time notification */ |
b3e7b125 |
342 | lttvwindow_register_time_window_notify(tab, |
343 | interrupt_update_time_window, |
344 | event_viewer_data); |
f2ec7aa9 |
345 | |
346 | |
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347 | FirstRequest(event_viewer_data ); |
5f5119ee |
348 | return event_viewer_data; |
349 | } |
b3e7b125 |
350 | |
f2ec7aa9 |
351 | /** |
352 | * |
353 | * For each trace in the traceset, this function: |
354 | * - registers a callback function to each hook |
355 | * - calls lttv_trace_find_hook() registers a hook function to event_by_id_hooks |
356 | * - calls lttvwindow_events_request() to request data in a specific |
357 | * time interval to the main window |
358 | * |
359 | */ |
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360 | static void FirstRequest(InterruptEventData *event_data ) |
f2ec7aa9 |
361 | { |
362 | guint i, k, l, nb_trace; |
363 | |
364 | LttvTraceHook *hook; |
365 | |
366 | guint ret; |
367 | |
368 | LttvTraceState *ts; |
369 | |
370 | GArray *hooks; |
371 | |
372 | EventsRequest *events_request; |
373 | |
374 | LttvTraceHookByFacility *thf; |
375 | |
376 | LttvTracesetContext *tsc = lttvwindow_get_traceset_context(event_data->tab); |
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377 | |
f2ec7aa9 |
378 | |
379 | /* Get the traceset */ |
380 | LttvTraceset *traceset = tsc->ts; |
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381 | |
f2ec7aa9 |
382 | nb_trace = lttv_traceset_number(traceset); |
383 | |
384 | /* There are many traces in a traceset. Iteration for each trace. */ |
385 | for(i = 0; i<MIN(TRACE_NUMBER+1, nb_trace);i++) |
386 | { |
387 | events_request = g_new(EventsRequest, 1); |
388 | |
389 | hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook)); |
390 | |
391 | hooks = g_array_set_size(hooks, 2); |
b3e7b125 |
392 | |
f2ec7aa9 |
393 | event_data->hooks_trace_before = lttv_hooks_new(); |
394 | |
395 | /* Registers a hook function */ |
396 | lttv_hooks_add(event_data->hooks_trace_before, trace_header, event_data, LTTV_PRIO_DEFAULT); |
397 | |
398 | event_data->hooks_trace_after = lttv_hooks_new(); |
dc06b1bc |
399 | |
400 | /* Registers a hook function */ |
401 | lttv_hooks_add(event_data->hooks_trace_after, SecondRequest, event_data, LTTV_PRIO_DEFAULT); |
f2ec7aa9 |
402 | /* Get a trace state */ |
403 | ts = (LttvTraceState *)tsc->traces[i]; |
404 | /* Create event_by_Id hooks */ |
405 | event_data->event_by_id_hooks = lttv_hooks_by_id_new(); |
b3e7b125 |
406 | |
f2ec7aa9 |
407 | /*Register event_by_id_hooks with a callback function*/ |
408 | ret = lttv_trace_find_hook(ts->parent.t, |
409 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
410 | LTT_FIELD_IRQ_ID, 0, 0, |
dc06b1bc |
411 | FirstRequestIrqEntryCallback, |
f2ec7aa9 |
412 | events_request, |
413 | &g_array_index(hooks, LttvTraceHook, 0)); |
414 | |
415 | ret = lttv_trace_find_hook(ts->parent.t, |
416 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT, |
417 | LTT_FIELD_IRQ_ID, 0, 0, |
dc06b1bc |
418 | FirstRequestIrqExitCallback, |
f2ec7aa9 |
419 | events_request, |
420 | &g_array_index(hooks, LttvTraceHook, 1)); |
421 | |
422 | g_assert(!ret); |
423 | /*iterate through the facility list*/ |
424 | for(k = 0 ; k < hooks->len; k++) |
425 | { |
426 | hook = &g_array_index(hooks, LttvTraceHook, k); |
427 | for(l=0; l<hook->fac_list->len; l++) |
428 | { |
429 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
430 | lttv_hooks_add(lttv_hooks_by_id_find(event_data->event_by_id_hooks, thf->id), |
431 | thf->h, |
432 | event_data, |
433 | LTTV_PRIO_DEFAULT); |
434 | |
435 | } |
436 | } |
437 | /* Initalize the EventsRequest structure */ |
438 | events_request->owner = event_data; |
439 | events_request->viewer_data = event_data; |
440 | events_request->servicing = FALSE; |
441 | events_request->start_time = event_data->time_window.start_time; |
442 | events_request->start_position = NULL; |
443 | events_request->stop_flag = FALSE; |
444 | events_request->end_time = event_data->time_window.end_time; |
445 | events_request->num_events = G_MAXUINT; |
446 | events_request->end_position = NULL; |
447 | events_request->trace = i; |
448 | |
449 | events_request->hooks = hooks; |
450 | |
451 | events_request->before_chunk_traceset = NULL; |
452 | events_request->before_chunk_trace = event_data->hooks_trace_before; |
453 | events_request->before_chunk_tracefile= NULL; |
454 | events_request->event = NULL; |
455 | events_request->event_by_id = event_data->event_by_id_hooks; |
456 | events_request->after_chunk_tracefile = NULL; |
231a6432 |
457 | events_request->after_chunk_trace = NULL; |
f2ec7aa9 |
458 | events_request->after_chunk_traceset = NULL; |
231a6432 |
459 | events_request->before_request = NULL; |
f2ec7aa9 |
460 | events_request->after_request = event_data->hooks_trace_after; |
461 | |
462 | lttvwindow_events_request(event_data->tab, events_request); |
463 | } |
464 | |
b3e7b125 |
465 | } |
5f5119ee |
466 | |
f2ec7aa9 |
467 | /** |
468 | * This function is called whenever an irq_entry event occurs. |
469 | * |
470 | */ |
dc06b1bc |
471 | static gboolean FirstRequestIrqEntryCallback(void *hook_data, void *call_data) |
f2ec7aa9 |
472 | { |
473 | |
b3e7b125 |
474 | LttTime event_time; |
b3e7b125 |
475 | unsigned cpu_id; |
476 | irq_entry entry; |
b3e7b125 |
477 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
478 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
f2ec7aa9 |
479 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
dc06b1bc |
480 | GArray* FirstRequestIrqEntry = event_data->FirstRequestIrqEntry; |
f2ec7aa9 |
481 | LttEvent *e = ltt_tracefile_get_event(tfc->tf); |
b3e7b125 |
482 | event_time = ltt_event_time(e); |
b3e7b125 |
483 | cpu_id = ltt_event_cpu_id(e); |
f2ec7aa9 |
484 | |
231a6432 |
485 | |
486 | entry.id =get_interrupt_id(e); |
487 | entry.cpu_id = cpu_id; |
488 | entry.event_time = event_time; |
dc06b1bc |
489 | g_array_append_val (FirstRequestIrqEntry, entry); |
231a6432 |
490 | |
f2ec7aa9 |
491 | return FALSE; |
5f5119ee |
492 | } |
493 | |
f2ec7aa9 |
494 | /** |
495 | * This function gets the id of the interrupt. The id is stored in a dynamic structure. |
496 | * Refer to the print.c file for howto extract data from a dynamic structure. |
497 | */ |
498 | static guint64 get_interrupt_id(LttEvent *e) |
5f5119ee |
499 | { |
f2ec7aa9 |
500 | guint i, num_fields; |
501 | LttEventType *event_type; |
502 | LttField *element; |
503 | LttField *field; |
504 | guint64 irq_id; |
505 | event_type = ltt_event_eventtype(e); |
506 | num_fields = ltt_eventtype_num_fields(event_type); |
507 | for(i = 0 ; i < num_fields-1 ; i++) |
508 | { |
509 | field = ltt_eventtype_field(event_type, i); |
510 | irq_id = ltt_event_get_long_unsigned(e,field); |
5f5119ee |
511 | } |
512 | return irq_id; |
5f5119ee |
513 | |
f2ec7aa9 |
514 | } |
515 | /** |
516 | * This function is called whenever an irq_exit event occurs. |
517 | * |
518 | */ |
dc06b1bc |
519 | gboolean FirstRequestIrqExitCallback(void *hook_data, void *call_data) |
f2ec7aa9 |
520 | { |
521 | LttTime event_time; |
522 | unsigned cpu_id; |
5f5119ee |
523 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
f2ec7aa9 |
524 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
525 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
526 | LttEvent *e = ltt_tracefile_get_event(tfc->tf); |
527 | LttEventType *type = ltt_event_eventtype(e); |
528 | event_time = ltt_event_time(e); |
529 | cpu_id = ltt_event_cpu_id(e); |
231a6432 |
530 | |
e5258c09 |
531 | CalculateData( event_time, cpu_id, event_data); |
532 | |
231a6432 |
533 | return FALSE; |
5f5119ee |
534 | } |
535 | |
f2ec7aa9 |
536 | /** |
537 | * This function calculates the duration of an interrupt. |
538 | * |
539 | */ |
e5258c09 |
540 | static void CalculateData(LttTime time_exit, guint cpu_id,InterruptEventData *event_data) |
dc06b1bc |
541 | { |
5f5119ee |
542 | |
f2ec7aa9 |
543 | gint i, irq_id; |
544 | irq_entry *element; |
545 | LttTime duration; |
dc06b1bc |
546 | GArray *FirstRequestIrqExit = event_data->FirstRequestIrqExit; |
547 | GArray *FirstRequestIrqEntry = event_data->FirstRequestIrqEntry; |
548 | for(i = 0; i < FirstRequestIrqEntry->len; i++) |
231a6432 |
549 | { |
dc06b1bc |
550 | element = &g_array_index(FirstRequestIrqEntry,irq_entry,i); |
231a6432 |
551 | if(element->cpu_id == cpu_id) |
552 | { |
e5258c09 |
553 | TotalDurationMaxIrqDuration(element,time_exit, FirstRequestIrqExit); |
dc06b1bc |
554 | g_array_remove_index(FirstRequestIrqEntry, i); |
f2ec7aa9 |
555 | break; |
556 | } |
557 | } |
e5258c09 |
558 | } |
dc06b1bc |
559 | |
f2ec7aa9 |
560 | /** |
e5258c09 |
561 | * This function calculates the total duration of an interrupt and the longest Irq handler. |
f2ec7aa9 |
562 | * |
563 | */ |
e5258c09 |
564 | static void TotalDurationMaxIrqDuration(irq_entry *e, LttTime time_exit, GArray *FirstRequestIrqExit){ |
5f5119ee |
565 | Irq irq; |
566 | Irq *element; |
567 | guint i; |
568 | LttTime duration; |
569 | gboolean notFound = FALSE; |
570 | memset ((void*)&irq, 0,sizeof(Irq)); |
571 | |
231a6432 |
572 | /*first time*/ |
dc06b1bc |
573 | if(FirstRequestIrqExit->len == NO_ITEMS) |
231a6432 |
574 | { |
5f5119ee |
575 | irq.cpu_id = e->cpu_id; |
576 | irq.id = e->id; |
577 | irq.frequency++; |
578 | irq.total_duration = ltt_time_sub(time_exit, e->event_time); |
e5258c09 |
579 | |
446b4179 |
580 | irq.max_irq_handler.start_time = e->event_time; |
581 | irq.max_irq_handler.end_time = time_exit; |
582 | irq.max_irq_handler.duration = ltt_time_sub(time_exit, e->event_time); |
e5258c09 |
583 | |
446b4179 |
584 | |
dc06b1bc |
585 | g_array_append_val (FirstRequestIrqExit, irq); |
5f5119ee |
586 | } |
231a6432 |
587 | else |
588 | { |
dc06b1bc |
589 | for(i = 0; i < FirstRequestIrqExit->len; i++) |
231a6432 |
590 | { |
dc06b1bc |
591 | element = &g_array_index(FirstRequestIrqExit,Irq,i); |
592 | if(element->id == e->id) |
593 | { |
5f5119ee |
594 | notFound = TRUE; |
595 | duration = ltt_time_sub(time_exit, e->event_time); |
596 | element->total_duration = ltt_time_add(element->total_duration, duration); |
597 | element->frequency++; |
446b4179 |
598 | if(ltt_time_compare(duration,element->max_irq_handler.duration) > 0) |
599 | { |
600 | element->max_irq_handler.duration = duration; |
601 | element->max_irq_handler.start_time = e->event_time; |
602 | element->max_irq_handler.end_time = time_exit; |
603 | } |
5f5119ee |
604 | } |
605 | } |
231a6432 |
606 | if(!notFound) |
607 | { |
5f5119ee |
608 | irq.cpu_id = e->cpu_id; |
609 | irq.id = e->id; |
610 | irq.frequency++; |
611 | irq.total_duration = ltt_time_sub(time_exit, e->event_time); |
446b4179 |
612 | |
613 | irq.max_irq_handler.start_time = e->event_time; |
614 | irq.max_irq_handler.end_time = time_exit; |
615 | irq.max_irq_handler.duration = ltt_time_sub(time_exit, e->event_time); |
616 | |
dc06b1bc |
617 | g_array_append_val (FirstRequestIrqExit, irq); |
5f5119ee |
618 | } |
619 | } |
620 | } |
231a6432 |
621 | |
e5258c09 |
622 | /** |
623 | * This function passes the second EventsRequest to LTTV |
624 | * |
625 | */ |
dc06b1bc |
626 | static gboolean SecondRequest(void *hook_data, void *call_data) |
627 | { |
628 | |
629 | guint i, k, l, nb_trace; |
630 | |
631 | LttvTraceHook *hook; |
632 | |
633 | guint ret; |
634 | |
635 | LttvTraceState *ts; |
636 | |
637 | GArray *hooks; |
638 | |
639 | EventsRequest *events_request; |
640 | |
641 | LttvTraceHookByFacility *thf; |
642 | |
643 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
644 | |
645 | LttvTracesetContext *tsc = lttvwindow_get_traceset_context(event_data->tab); |
646 | |
647 | CalculateAverageDurationForEachIrqId(event_data); |
648 | |
649 | /* Get the traceset */ |
650 | LttvTraceset *traceset = tsc->ts; |
651 | |
652 | nb_trace = lttv_traceset_number(traceset); |
653 | |
654 | /* There are many traces in a traceset. Iteration for each trace. */ |
655 | for(i = 0; i<MIN(TRACE_NUMBER+1, nb_trace);i++) |
656 | { |
657 | events_request = g_new(EventsRequest, 1); |
658 | |
659 | hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook)); |
660 | |
661 | hooks = g_array_set_size(hooks, 2); |
662 | |
663 | event_data->hooks_trace_after = lttv_hooks_new(); |
664 | |
665 | /* Registers a hook function */ |
666 | lttv_hooks_add(event_data->hooks_trace_after, DisplayViewer, event_data, LTTV_PRIO_DEFAULT); |
667 | |
668 | /* Get a trace state */ |
669 | ts = (LttvTraceState *)tsc->traces[i]; |
670 | /* Create event_by_Id hooks */ |
671 | event_data->event_by_id_hooks = lttv_hooks_by_id_new(); |
672 | |
673 | /*Register event_by_id_hooks with a callback function*/ |
674 | ret = lttv_trace_find_hook(ts->parent.t, |
675 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY, |
676 | LTT_FIELD_IRQ_ID, 0, 0, |
677 | SecondRequestIrqEntryCallback, |
678 | events_request, |
679 | &g_array_index(hooks, LttvTraceHook, 0)); |
680 | |
681 | ret = lttv_trace_find_hook(ts->parent.t, |
682 | LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT, |
683 | LTT_FIELD_IRQ_ID, 0, 0, |
684 | SecondRequestIrqExitCallback, |
685 | events_request, |
686 | &g_array_index(hooks, LttvTraceHook, 1)); |
687 | |
688 | g_assert(!ret); |
e5258c09 |
689 | |
690 | /* iterate through the facility list */ |
dc06b1bc |
691 | for(k = 0 ; k < hooks->len; k++) |
692 | { |
693 | hook = &g_array_index(hooks, LttvTraceHook, k); |
694 | for(l=0; l<hook->fac_list->len; l++) |
695 | { |
696 | thf = g_array_index(hook->fac_list, LttvTraceHookByFacility*, l); |
697 | lttv_hooks_add(lttv_hooks_by_id_find(event_data->event_by_id_hooks, thf->id), |
698 | thf->h, |
699 | event_data, |
700 | LTTV_PRIO_DEFAULT); |
701 | |
702 | } |
703 | } |
704 | /* Initalize the EventsRequest structure */ |
705 | events_request->owner = event_data; |
706 | events_request->viewer_data = event_data; |
707 | events_request->servicing = FALSE; |
708 | events_request->start_time = event_data->time_window.start_time; |
709 | events_request->start_position = NULL; |
710 | events_request->stop_flag = FALSE; |
711 | events_request->end_time = event_data->time_window.end_time; |
712 | events_request->num_events = G_MAXUINT; |
713 | events_request->end_position = NULL; |
714 | events_request->trace = i; |
715 | |
716 | events_request->hooks = hooks; |
717 | |
718 | events_request->before_chunk_traceset = NULL; |
719 | events_request->before_chunk_trace = NULL; |
720 | events_request->before_chunk_tracefile= NULL; |
721 | events_request->event = NULL; |
722 | events_request->event_by_id = event_data->event_by_id_hooks; |
723 | events_request->after_chunk_tracefile = NULL; |
724 | events_request->after_chunk_trace = NULL; |
725 | events_request->after_chunk_traceset = NULL; |
726 | events_request->before_request = NULL; |
727 | events_request->after_request = event_data->hooks_trace_after; |
728 | |
729 | lttvwindow_events_request(event_data->tab, events_request); |
730 | } |
e5258c09 |
731 | return FALSE; |
dc06b1bc |
732 | } |
733 | |
734 | static void CalculateAverageDurationForEachIrqId(InterruptEventData *event_data) |
735 | { |
736 | guint64 real_data; |
737 | Irq *element; |
738 | gint i; |
739 | GArray* FirstRequestIrqExit = event_data->FirstRequestIrqExit; |
740 | for(i = 0; i < FirstRequestIrqExit->len; i++) |
741 | { |
742 | element = &g_array_index(FirstRequestIrqExit,Irq,i); |
743 | real_data = element->total_duration.tv_sec; |
744 | real_data *= NANOSECONDS_PER_SECOND; |
745 | real_data += element->total_duration.tv_nsec; |
746 | element->average_duration = real_data / element->frequency; |
dc06b1bc |
747 | } |
748 | |
749 | } |
750 | |
e5258c09 |
751 | /** |
752 | * This function is called whenever an irq_entry event occurs. Use in the second request |
753 | * |
754 | */ |
dc06b1bc |
755 | static gboolean SecondRequestIrqEntryCallback(void *hook_data, void *call_data) |
756 | { |
757 | |
758 | LttTime event_time; |
759 | unsigned cpu_id; |
760 | irq_entry entry; |
761 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
762 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
763 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
764 | GArray* SecondRequestIrqEntry = event_data->SecondRequestIrqEntry; |
765 | LttEvent *e = ltt_tracefile_get_event(tfc->tf); |
766 | event_time = ltt_event_time(e); |
767 | cpu_id = ltt_event_cpu_id(e); |
768 | |
769 | |
770 | entry.id =get_interrupt_id(e); |
771 | entry.cpu_id = cpu_id; |
772 | entry.event_time = event_time; |
773 | g_array_append_val (SecondRequestIrqEntry, entry); |
774 | |
775 | return FALSE; |
776 | } |
777 | |
e5258c09 |
778 | /** |
779 | * This function is called whenever an irq_exit event occurs in the second request. |
780 | * |
781 | */ |
dc06b1bc |
782 | static gboolean SecondRequestIrqExitCallback(void *hook_data, void *call_data) |
783 | { |
784 | |
785 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
786 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
787 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
788 | LttEvent *event = ltt_tracefile_get_event(tfc->tf); |
789 | |
790 | CalculateXi(event, event_data); |
791 | return FALSE; |
792 | } |
793 | |
e5258c09 |
794 | |
795 | /** |
796 | * This function is called whenever an irq_exit event occurs in the second request. |
797 | * |
798 | */ |
dc06b1bc |
799 | static void CalculateXi(LttEvent *event_irq_exit, InterruptEventData *event_data) |
800 | { |
801 | gint i, irq_id; |
802 | irq_entry *element; |
803 | LttTime Xi; |
804 | LttTime exit_time; |
805 | unsigned cpu_id; |
806 | |
807 | GArray *SecondRequestIrqExit = event_data->SecondRequestIrqExit; |
808 | GArray *SecondRequestIrqEntry = event_data->SecondRequestIrqEntry; |
809 | cpu_id = ltt_event_cpu_id(event_irq_exit); |
810 | for(i = 0; i < SecondRequestIrqEntry->len; i++) |
811 | { |
812 | element = &g_array_index(SecondRequestIrqEntry,irq_entry,i); |
813 | if(element->cpu_id == cpu_id) |
814 | { |
815 | |
816 | /* time calculation */ |
817 | exit_time = ltt_event_time(event_irq_exit); |
818 | Xi = ltt_time_sub(exit_time, element->event_time); |
819 | irq_id = element->id; |
820 | |
821 | SumItems(irq_id, Xi,event_data); |
822 | g_array_remove_index(SecondRequestIrqEntry, i); |
823 | break; |
824 | } |
825 | } |
826 | } |
827 | |
e5258c09 |
828 | |
829 | /** |
830 | * This function computes the Sum ((xi -Xa)^2) and store the result in SumArray |
831 | * |
832 | */ |
dc06b1bc |
833 | static void SumItems(gint irq_id, LttTime Xi, InterruptEventData *event_data) |
834 | { |
835 | gint i; |
836 | guint time_in_ns; |
837 | |
838 | gint temp; |
839 | Irq *average; |
840 | SumId *sumItem; |
841 | SumId sum; |
842 | gboolean notFound = FALSE; |
843 | GArray *FirstRequestIrqExit = event_data->FirstRequestIrqExit; |
844 | GArray *SumArray = event_data->SumArray; |
845 | time_in_ns = Xi.tv_sec; |
846 | time_in_ns *= NANOSECONDS_PER_SECOND; |
847 | time_in_ns += Xi.tv_nsec; |
848 | |
849 | for(i = 0; i < FirstRequestIrqExit->len; i++) |
850 | { |
851 | average = &g_array_index(FirstRequestIrqExit,Irq,i); |
852 | if(irq_id == average->id) |
853 | { |
854 | temp = time_in_ns - average->average_duration; |
855 | sum.sumOfDurations = pow (temp , 2); |
856 | //printf("one : %d\n", sum.sumOfDurations); |
857 | sum.irqId = irq_id; |
858 | sum.frequency = average->frequency; |
859 | if(event_data->SumArray->len == NO_ITEMS) |
860 | { |
861 | g_array_append_val (SumArray, sum); |
862 | } |
863 | else |
864 | { |
865 | |
866 | for(i = 0; i < SumArray->len; i++) |
867 | { |
868 | sumItem = &g_array_index(SumArray, SumId, i); |
869 | if(sumItem->irqId == irq_id) |
870 | { |
871 | notFound = TRUE; |
872 | sumItem->sumOfDurations += sum.sumOfDurations; |
873 | |
874 | } |
875 | } |
876 | if(!notFound) |
877 | { |
878 | g_array_append_val (SumArray, sum); |
879 | } |
880 | |
881 | |
882 | } |
883 | |
884 | } |
885 | } |
886 | } |
887 | |
f2ec7aa9 |
888 | /** |
889 | * This function displays the result on the viewer |
890 | * |
891 | */ |
dc06b1bc |
892 | static gboolean DisplayViewer(void *hook_data, void *call_data) |
893 | { |
5f5119ee |
894 | |
dc06b1bc |
895 | guint average; |
f2ec7aa9 |
896 | gint i; |
897 | Irq element; |
898 | LttTime average_duration; |
899 | GtkTreeIter iter; |
900 | guint64 real_data; |
446b4179 |
901 | guint maxIRQduration; |
52948a62 |
902 | double period; |
e5258c09 |
903 | char maxIrqHandler[80]; |
f2ec7aa9 |
904 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
dc06b1bc |
905 | GArray *FirstRequestIrqExit = event_data->FirstRequestIrqExit; |
52948a62 |
906 | int FrequencyHZ = 0; |
907 | period = 0.0; |
f2ec7aa9 |
908 | gtk_list_store_clear(event_data->ListStore); |
dc06b1bc |
909 | for(i = 0; i < FirstRequestIrqExit->len; i++) |
231a6432 |
910 | { |
dc06b1bc |
911 | element = g_array_index(FirstRequestIrqExit,Irq,i); |
f2ec7aa9 |
912 | real_data = element.total_duration.tv_sec; |
913 | real_data *= NANOSECONDS_PER_SECOND; |
914 | real_data += element.total_duration.tv_nsec; |
446b4179 |
915 | |
916 | |
917 | maxIRQduration = element.max_irq_handler.duration.tv_sec; |
918 | maxIRQduration *= NANOSECONDS_PER_SECOND; |
919 | maxIRQduration += element.max_irq_handler.duration.tv_nsec; |
e5258c09 |
920 | |
921 | sprintf(maxIrqHandler, "%d [%d.%d - %d.%d]",maxIRQduration, element.max_irq_handler.start_time.tv_sec, \ |
922 | element.max_irq_handler.start_time.tv_nsec, element.max_irq_handler.end_time.tv_sec, \ |
923 | element.max_irq_handler.end_time.tv_nsec) ; |
52948a62 |
924 | FrequencyHZ = FrequencyInHZ(element.frequency,event_data->time_window); |
925 | if(FrequencyHZ != 0) |
926 | { |
927 | period =(double)1/FrequencyHZ; |
928 | } |
25c6412d |
929 | |
f2ec7aa9 |
930 | gtk_list_store_append (event_data->ListStore, &iter); |
931 | gtk_list_store_set (event_data->ListStore, &iter, |
932 | CPUID_COLUMN, element.cpu_id, |
933 | IRQ_ID_COLUMN, element.id, |
52948a62 |
934 | FREQUENCY_COLUMN, FrequencyHZ, |
f2ec7aa9 |
935 | DURATION_COLUMN, real_data, |
dc06b1bc |
936 | DURATION_STANDARD_DEV_COLUMN, CalculateStandardDeviation(element.id, event_data), |
e5258c09 |
937 | MAX_IRQ_HANDLER_COLUMN, maxIrqHandler, |
52948a62 |
938 | AVERAGE_PERIOD , period, |
f2ec7aa9 |
939 | -1); |
dc06b1bc |
940 | |
446b4179 |
941 | |
f2ec7aa9 |
942 | } |
dc06b1bc |
943 | |
dc06b1bc |
944 | |
945 | if(event_data->FirstRequestIrqExit->len) |
231a6432 |
946 | { |
dc06b1bc |
947 | g_array_remove_range (event_data->FirstRequestIrqExit,0,event_data->FirstRequestIrqExit->len); |
231a6432 |
948 | } |
949 | |
dc06b1bc |
950 | if(event_data->FirstRequestIrqEntry->len) |
231a6432 |
951 | { |
dc06b1bc |
952 | g_array_remove_range (event_data->FirstRequestIrqEntry,0,event_data->FirstRequestIrqEntry->len); |
953 | } |
954 | |
955 | if(event_data->SecondRequestIrqEntry->len) |
956 | { |
957 | g_array_remove_range (event_data->SecondRequestIrqEntry,0,event_data->SecondRequestIrqEntry->len); |
958 | } |
231a6432 |
959 | |
dc06b1bc |
960 | if(event_data->SecondRequestIrqExit->len) |
961 | { |
962 | g_array_remove_range (event_data->SecondRequestIrqExit,0, event_data->SecondRequestIrqExit->len); |
963 | } |
964 | |
965 | if(event_data->SumArray->len) |
966 | { |
967 | g_array_remove_range (event_data->SumArray,0, event_data->SumArray->len); |
231a6432 |
968 | } |
dc06b1bc |
969 | |
f2ec7aa9 |
970 | return FALSE; |
5f5119ee |
971 | } |
dc06b1bc |
972 | |
25c6412d |
973 | |
974 | static int FrequencyInHZ(gint frequency, TimeWindow time_window) |
975 | { |
976 | guint64 frequencyHz = 0; |
977 | double timeSec; |
52948a62 |
978 | |
979 | timeSec = ltt_time_to_double(time_window.time_width); |
980 | double result = (timeSec/NANOSECONDS_PER_SECOND); |
981 | frequencyHz = frequency / result; |
25c6412d |
982 | return frequencyHz; |
983 | } |
984 | |
e5258c09 |
985 | /** |
986 | * This function calculatees the standard deviation |
987 | * |
988 | */ |
dc06b1bc |
989 | static int CalculateStandardDeviation(gint id, InterruptEventData *event_data) |
990 | { |
991 | int i; |
992 | SumId sumId; |
993 | double inner_component; |
994 | int deviation = 0; |
995 | for(i = 0; i < event_data->SumArray->len; i++) |
996 | { |
997 | sumId = g_array_index(event_data->SumArray, SumId, i); |
998 | if(id == sumId.irqId) |
999 | { |
25c6412d |
1000 | inner_component = sumId.sumOfDurations/ sumId.frequency; |
dc06b1bc |
1001 | deviation = sqrt(inner_component); |
25c6412d |
1002 | return deviation; |
dc06b1bc |
1003 | } |
1004 | } |
1005 | return deviation; |
1006 | } |
f2ec7aa9 |
1007 | /* |
1008 | * This function is called by the main window |
1009 | * when the time interval needs to be updated. |
1010 | **/ |
1011 | gboolean interrupt_update_time_window(void * hook_data, void * call_data) |
1012 | { |
5f5119ee |
1013 | InterruptEventData *event_data = (InterruptEventData *) hook_data; |
1014 | const TimeWindowNotifyData *time_window_nofify_data = ((const TimeWindowNotifyData *)call_data); |
1015 | event_data->time_window = *time_window_nofify_data->new_time_window; |
1016 | g_info("interrupts: interrupt_update_time_window()\n"); |
1017 | Tab *tab = event_data->tab; |
1018 | lttvwindow_events_request_remove_all(tab, event_data); |
dc06b1bc |
1019 | FirstRequest(event_data ); |
f2ec7aa9 |
1020 | return FALSE; |
5f5119ee |
1021 | } |
1022 | |
f2ec7aa9 |
1023 | |
1024 | gboolean trace_header(void *hook_data, void *call_data) |
1025 | { |
1026 | |
1027 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
1028 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
f2ec7aa9 |
1029 | LttEvent *e; |
1030 | LttTime event_time; |
1031 | return FALSE; |
5f5119ee |
1032 | } |
1033 | |
f2ec7aa9 |
1034 | void interrupt_destroy_walk(gpointer data, gpointer user_data) |
1035 | { |
5f5119ee |
1036 | g_info("interrupt_destroy_walk"); |
1037 | interrupt_destructor((InterruptEventData*)data); |
1038 | |
1039 | } |
1040 | |
f2ec7aa9 |
1041 | void interrupt_destructor(InterruptEventData *event_viewer_data) |
1042 | { |
1043 | /* May already been done by GTK window closing */ |
1044 | g_info("enter interrupt_destructor \n"); |
1045 | if(GTK_IS_WIDGET(event_viewer_data->Hbox)) |
1046 | { |
1047 | gtk_widget_destroy(event_viewer_data->Hbox); |
1048 | } |
1049 | } |
1050 | |
5f5119ee |
1051 | /** |
1052 | * plugin's destroy function |
1053 | * |
1054 | * This function releases the memory reserved by the module and unregisters |
1055 | * everything that has been registered in the gtkTraceSet API. |
1056 | */ |
dc06b1bc |
1057 | static void destroy() |
1058 | { |
1059 | |
5f5119ee |
1060 | g_info("Destroy interrupts"); |
1061 | g_slist_foreach(interrupt_data_list, interrupt_destroy_walk, NULL ); |
1062 | g_slist_free(interrupt_data_list); |
1063 | lttvwindow_unregister_constructor(interrupts); |
1064 | |
1065 | } |
1066 | |
1067 | LTTV_MODULE("interrupts", "interrupts info view", \ |
1068 | "Graphical module to display interrupts performance", \ |
1069 | init, destroy, "lttvwindow") |