| 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 | */ |
| 18 | |
| 19 | |
| 20 | |
| 21 | #include <math.h> |
| 22 | #include <glib.h> |
| 23 | #include <gtk/gtk.h> |
| 24 | #include <gdk/gdk.h> |
| 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <string.h> |
| 28 | #include <ltt/ltt.h> |
| 29 | #include <ltt/event.h> |
| 30 | #include <ltt/type.h> |
| 31 | #include <ltt/trace.h> |
| 32 | #include <ltt/facility.h> |
| 33 | #include <lttv/module.h> |
| 34 | #include <lttv/hook.h> |
| 35 | #include <lttv/tracecontext.h> |
| 36 | #include <lttv/state.h> |
| 37 | #include <lttv/filter.h> |
| 38 | #include <lttvwindow/lttvwindow.h> |
| 39 | #include <ltt/time.h> |
| 40 | |
| 41 | #include "hInterruptsInsert.xpm" |
| 42 | |
| 43 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
| 44 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
| 45 | #define NO_ITEMS 0 |
| 46 | |
| 47 | typedef struct { |
| 48 | guint cpu_id; |
| 49 | guint id; |
| 50 | guint frequency; |
| 51 | LttTime total_duration; |
| 52 | }Irq; |
| 53 | |
| 54 | typedef struct { |
| 55 | guint id; |
| 56 | guint cpu_id; |
| 57 | LttTime event_time; |
| 58 | }irq_entry; |
| 59 | |
| 60 | enum type_t { |
| 61 | IRQ_ENTRY, |
| 62 | IRQ_EXIT |
| 63 | }; |
| 64 | |
| 65 | /** Array containing instanced objects. Used when module is unloaded */ |
| 66 | static GSList *interrupt_data_list = NULL ; |
| 67 | |
| 68 | |
| 69 | typedef struct _InterruptEventData { |
| 70 | |
| 71 | /*Graphical Widgets */ |
| 72 | GtkWidget * ScrollWindow; |
| 73 | GtkListStore *ListStore; |
| 74 | GtkWidget *Hbox; |
| 75 | GtkWidget *TreeView; |
| 76 | GtkTreeSelection *SelectionTree; |
| 77 | |
| 78 | Tab * tab; /* tab that contains this plug-in*/ |
| 79 | LttvHooks * event_hooks; |
| 80 | LttvHooks * hooks_trace_after; |
| 81 | LttvHooks * hooks_trace_before; |
| 82 | TimeWindow time_window; |
| 83 | |
| 84 | GArray *interrupt_counters; |
| 85 | GArray *active_irq_entry ; |
| 86 | } InterruptEventData ; |
| 87 | |
| 88 | /* Function prototypes */ |
| 89 | |
| 90 | static gboolean interrupt_update_time_window(void * hook_data, void * call_data); |
| 91 | GtkWidget *interrupts(Tab *tab); |
| 92 | // Plug-in's constructor |
| 93 | InterruptEventData *system_info(Tab *tab); |
| 94 | // Plug-in's destructor |
| 95 | void interrupt_destructor(InterruptEventData *event_viewer_data); |
| 96 | |
| 97 | static void request_event( InterruptEventData *event_data); |
| 98 | static guint64 get_event_detail(LttEvent *e, LttField *f); |
| 99 | static gboolean trace_header(void *hook_data, void *call_data); |
| 100 | static gboolean parse_event(void *hook_data, void *call_data); |
| 101 | static gboolean interrupt_show(void *hook_data, void *call_data); |
| 102 | static void calcul_duration(LttTime time_exit, guint cpu_id, InterruptEventData *event_data); |
| 103 | static void sum_interrupt_data(irq_entry *e, LttTime time_exit, GArray *interrupt_counters); |
| 104 | /* Enumeration of the columns */ |
| 105 | enum{ |
| 106 | CPUID_COLUMN, |
| 107 | IRQ_ID_COLUMN, |
| 108 | FREQUENCY_COLUMN, |
| 109 | DURATION_COLUMN, |
| 110 | N_COLUMNS |
| 111 | }; |
| 112 | |
| 113 | /** |
| 114 | * constructor hook |
| 115 | * |
| 116 | * This constructor is given as a parameter to the menuitem and toolbar button |
| 117 | * registration. It creates the list. |
| 118 | * @param parent_window A pointer to the parent window. |
| 119 | * @return The widget created. |
| 120 | */ |
| 121 | GtkWidget *interrupts(Tab * tab){ |
| 122 | |
| 123 | InterruptEventData* event_data = system_info(tab) ; |
| 124 | if(event_data) |
| 125 | return event_data->Hbox; |
| 126 | else |
| 127 | return NULL; |
| 128 | } |
| 129 | |
| 130 | InterruptEventData *system_info(Tab *tab) |
| 131 | { |
| 132 | LttTime end; |
| 133 | GtkTreeViewColumn *column; |
| 134 | GtkCellRenderer *renderer; |
| 135 | InterruptEventData* event_viewer_data = g_new(InterruptEventData,1) ; |
| 136 | g_info("system_info \n"); |
| 137 | |
| 138 | event_viewer_data->tab = tab; |
| 139 | event_viewer_data->time_window = lttvwindow_get_time_window(tab); |
| 140 | event_viewer_data->interrupt_counters = g_array_new(FALSE, FALSE, sizeof(Irq)); |
| 141 | event_viewer_data->active_irq_entry = g_array_new(FALSE, FALSE, sizeof(irq_entry)); |
| 142 | |
| 143 | event_viewer_data->ScrollWindow = gtk_scrolled_window_new (NULL, NULL); |
| 144 | gtk_widget_show (event_viewer_data->ScrollWindow); |
| 145 | gtk_scrolled_window_set_policy( |
| 146 | GTK_SCROLLED_WINDOW(event_viewer_data->ScrollWindow), |
| 147 | GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC/*GTK_POLICY_NEVER*/); |
| 148 | |
| 149 | /* Create a model for storing the data list */ |
| 150 | event_viewer_data->ListStore = gtk_list_store_new ( |
| 151 | N_COLUMNS, /* Total number of columns */ |
| 152 | G_TYPE_INT, /* CPUID */ |
| 153 | G_TYPE_INT, /* IRQ_ID */ |
| 154 | G_TYPE_INT, /* Frequency */ |
| 155 | G_TYPE_UINT64 /* Duration */ |
| 156 | ); |
| 157 | |
| 158 | event_viewer_data->TreeView = gtk_tree_view_new_with_model (GTK_TREE_MODEL (event_viewer_data->ListStore)); |
| 159 | |
| 160 | g_object_unref (G_OBJECT (event_viewer_data->ListStore)); |
| 161 | |
| 162 | renderer = gtk_cell_renderer_text_new (); |
| 163 | column = gtk_tree_view_column_new_with_attributes ("CPUID", |
| 164 | renderer, |
| 165 | "text", CPUID_COLUMN, |
| 166 | NULL); |
| 167 | gtk_tree_view_column_set_alignment (column, 0.0); |
| 168 | gtk_tree_view_column_set_fixed_width (column, 45); |
| 169 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
| 170 | |
| 171 | |
| 172 | renderer = gtk_cell_renderer_text_new (); |
| 173 | column = gtk_tree_view_column_new_with_attributes ("IrqId", |
| 174 | renderer, |
| 175 | "text", IRQ_ID_COLUMN, |
| 176 | NULL); |
| 177 | gtk_tree_view_column_set_alignment (column, 0.0); |
| 178 | gtk_tree_view_column_set_fixed_width (column, 220); |
| 179 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
| 180 | |
| 181 | renderer = gtk_cell_renderer_text_new (); |
| 182 | column = gtk_tree_view_column_new_with_attributes ("Frequency", |
| 183 | renderer, |
| 184 | "text", FREQUENCY_COLUMN, |
| 185 | NULL); |
| 186 | gtk_tree_view_column_set_alignment (column, 1.0); |
| 187 | gtk_tree_view_column_set_fixed_width (column, 220); |
| 188 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
| 189 | |
| 190 | renderer = gtk_cell_renderer_text_new (); |
| 191 | column = gtk_tree_view_column_new_with_attributes ("Duration (nsec)", |
| 192 | renderer, |
| 193 | "text", DURATION_COLUMN, |
| 194 | NULL); |
| 195 | gtk_tree_view_column_set_alignment (column, 0.0); |
| 196 | gtk_tree_view_column_set_fixed_width (column, 145); |
| 197 | gtk_tree_view_append_column (GTK_TREE_VIEW (event_viewer_data->TreeView), column); |
| 198 | |
| 199 | event_viewer_data->SelectionTree = gtk_tree_view_get_selection (GTK_TREE_VIEW (event_viewer_data->TreeView)); |
| 200 | gtk_tree_selection_set_mode (event_viewer_data->SelectionTree, GTK_SELECTION_SINGLE); |
| 201 | |
| 202 | gtk_container_add (GTK_CONTAINER (event_viewer_data->ScrollWindow), event_viewer_data->TreeView); |
| 203 | |
| 204 | event_viewer_data->Hbox = gtk_hbox_new(0, 0); |
| 205 | gtk_box_pack_start(GTK_BOX(event_viewer_data->Hbox), event_viewer_data->ScrollWindow, TRUE, TRUE, 0); |
| 206 | |
| 207 | gtk_widget_show(event_viewer_data->Hbox); |
| 208 | gtk_widget_show(event_viewer_data->TreeView); |
| 209 | |
| 210 | interrupt_data_list = g_slist_append(interrupt_data_list, event_viewer_data); |
| 211 | |
| 212 | lttvwindow_register_time_window_notify(tab, |
| 213 | interrupt_update_time_window, |
| 214 | event_viewer_data); |
| 215 | request_event(event_viewer_data); |
| 216 | return event_viewer_data; |
| 217 | } |
| 218 | |
| 219 | |
| 220 | static void request_event( InterruptEventData *event_data){ |
| 221 | |
| 222 | event_data->hooks_trace_before = lttv_hooks_new(); |
| 223 | lttv_hooks_add(event_data->hooks_trace_before, trace_header, event_data, LTTV_PRIO_DEFAULT); |
| 224 | |
| 225 | event_data->event_hooks = lttv_hooks_new(); |
| 226 | lttv_hooks_add(event_data->event_hooks, parse_event, event_data, LTTV_PRIO_DEFAULT); |
| 227 | |
| 228 | event_data->hooks_trace_after = lttv_hooks_new(); |
| 229 | lttv_hooks_add(event_data->hooks_trace_after, interrupt_show, event_data, LTTV_PRIO_DEFAULT); |
| 230 | |
| 231 | EventsRequest *events_request = g_new(EventsRequest, 1); |
| 232 | events_request->owner = event_data; |
| 233 | events_request->viewer_data = event_data; |
| 234 | events_request->servicing = FALSE; |
| 235 | events_request->start_time = event_data->time_window.start_time; |
| 236 | events_request->start_position = NULL; |
| 237 | events_request->stop_flag = FALSE; |
| 238 | events_request->end_time = event_data->time_window.end_time; |
| 239 | events_request->num_events = G_MAXUINT; |
| 240 | events_request->end_position = NULL; |
| 241 | events_request->trace = 0; |
| 242 | events_request->hooks = NULL; |
| 243 | events_request->before_chunk_traceset = NULL; |
| 244 | events_request->before_chunk_trace = event_data->hooks_trace_before; |
| 245 | events_request->before_chunk_tracefile= NULL; |
| 246 | events_request->event = event_data->event_hooks; |
| 247 | events_request->event_by_id = NULL; |
| 248 | events_request->after_chunk_tracefile = NULL; |
| 249 | events_request->after_chunk_trace = NULL; |
| 250 | events_request->after_chunk_traceset = NULL; |
| 251 | events_request->before_request = NULL; |
| 252 | events_request->after_request = event_data->hooks_trace_after; |
| 253 | |
| 254 | lttvwindow_events_request(event_data->tab, events_request); |
| 255 | } |
| 256 | |
| 257 | gboolean parse_event(void *hook_data, void *call_data){ |
| 258 | |
| 259 | LttTime event_time; |
| 260 | LttEvent *e; |
| 261 | LttField *field; |
| 262 | LttEventType *event_type; |
| 263 | unsigned cpu_id; |
| 264 | irq_entry entry; |
| 265 | irq_entry *element; |
| 266 | guint i; |
| 267 | // g_info("interrupts: parse_event() \n"); |
| 268 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
| 269 | GArray* active_irq_entry = event_data->active_irq_entry; |
| 270 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
| 271 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
| 272 | //e = tfc->e; |
| 273 | e = ltt_tracefile_get_event(tfc->tf); |
| 274 | |
| 275 | field = ltt_event_field(e); |
| 276 | event_time = ltt_event_time(e); |
| 277 | event_type = ltt_event_eventtype(e); |
| 278 | cpu_id = ltt_event_cpu_id(e); |
| 279 | GString * detail_event = g_string_new(""); |
| 280 | if ((ltt_time_compare(event_time,event_data->time_window.start_time) == TRUE) && |
| 281 | (ltt_time_compare(event_data->time_window.end_time,event_time) == TRUE)){ |
| 282 | if (strcmp( g_quark_to_string(ltt_eventtype_name(event_type)),"irq_entry") == 0) { |
| 283 | entry.id = get_event_detail(e, field); |
| 284 | entry.cpu_id = cpu_id; |
| 285 | entry.event_time = event_time; |
| 286 | g_array_append_val (active_irq_entry, entry); |
| 287 | |
| 288 | } |
| 289 | if(strcmp( g_quark_to_string(ltt_eventtype_name(event_type)),"irq_exit") == 0) { |
| 290 | //printf("event_time: %ld.%ld\n",event_time.tv_sec,event_time.tv_nsec); |
| 291 | calcul_duration( event_time, cpu_id, event_data); |
| 292 | } |
| 293 | } |
| 294 | g_string_free(detail_event, TRUE); |
| 295 | return FALSE; |
| 296 | } |
| 297 | |
| 298 | |
| 299 | void interrupt_destructor(InterruptEventData *event_viewer_data) |
| 300 | { |
| 301 | /* May already been done by GTK window closing */ |
| 302 | g_info("enter interrupt_destructor \n"); |
| 303 | if(GTK_IS_WIDGET(event_viewer_data->Hbox)){ |
| 304 | gtk_widget_destroy(event_viewer_data->Hbox); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | static guint64 get_event_detail(LttEvent *e, LttField *f){ |
| 309 | |
| 310 | LttType *type; |
| 311 | LttField *element; |
| 312 | GQuark name; |
| 313 | int nb, i; |
| 314 | guint64 irq_id; |
| 315 | type = ltt_field_type(f); |
| 316 | nb = ltt_type_member_number(type); |
| 317 | for(i = 0 ; i < nb-1 ; i++) { |
| 318 | element = ltt_field_member(f,i); |
| 319 | ltt_type_member_type(type, i, &name); |
| 320 | irq_id = ltt_event_get_long_unsigned(e,element); |
| 321 | } |
| 322 | return irq_id; |
| 323 | } |
| 324 | |
| 325 | |
| 326 | |
| 327 | |
| 328 | gboolean trace_header(void *hook_data, void *call_data){ |
| 329 | |
| 330 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
| 331 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
| 332 | LttEvent *e; |
| 333 | LttTime event_time; |
| 334 | return FALSE; |
| 335 | } |
| 336 | |
| 337 | static gboolean interrupt_show(void *hook_data, void *call_data){ |
| 338 | |
| 339 | gint i; |
| 340 | Irq element; |
| 341 | LttTime average_duration; |
| 342 | GtkTreeIter iter; |
| 343 | guint64 real_data; |
| 344 | InterruptEventData *event_data = (InterruptEventData *)hook_data; |
| 345 | GArray *interrupt_counters = event_data->interrupt_counters; |
| 346 | g_info("interrupts: interrupt_show() \n"); |
| 347 | gtk_list_store_clear(event_data->ListStore); |
| 348 | for(i = 0; i < interrupt_counters->len; i++){ |
| 349 | element = g_array_index(interrupt_counters,Irq,i); |
| 350 | real_data = element.total_duration.tv_sec; |
| 351 | real_data *= NANOSECONDS_PER_SECOND; |
| 352 | real_data += element.total_duration.tv_nsec; |
| 353 | //printf("total_duration:%ld\n", element.total_duration.tv_nsec); |
| 354 | gtk_list_store_append (event_data->ListStore, &iter); |
| 355 | gtk_list_store_set (event_data->ListStore, &iter, |
| 356 | CPUID_COLUMN, element.cpu_id, |
| 357 | IRQ_ID_COLUMN, element.id, |
| 358 | FREQUENCY_COLUMN, element.frequency, |
| 359 | DURATION_COLUMN, real_data, |
| 360 | -1); |
| 361 | } |
| 362 | |
| 363 | if(event_data->interrupt_counters->len) |
| 364 | g_array_remove_range (event_data->interrupt_counters,0,event_data->interrupt_counters->len); |
| 365 | |
| 366 | if(event_data->active_irq_entry->len) |
| 367 | g_array_remove_range (event_data->active_irq_entry,0,event_data->active_irq_entry->len); |
| 368 | return FALSE; |
| 369 | } |
| 370 | |
| 371 | static void sum_interrupt_data(irq_entry *e, LttTime time_exit, GArray *interrupt_counters){ |
| 372 | Irq irq; |
| 373 | Irq *element; |
| 374 | guint i; |
| 375 | LttTime duration; |
| 376 | gboolean notFound = FALSE; |
| 377 | memset ((void*)&irq, 0,sizeof(Irq)); |
| 378 | |
| 379 | //printf("time_exit: %ld.%ld\n",time_exit.tv_sec,time_exit.tv_nsec); |
| 380 | if(interrupt_counters->len == NO_ITEMS){ |
| 381 | irq.cpu_id = e->cpu_id; |
| 382 | irq.id = e->id; |
| 383 | irq.frequency++; |
| 384 | irq.total_duration = ltt_time_sub(time_exit, e->event_time); |
| 385 | g_array_append_val (interrupt_counters, irq); |
| 386 | } |
| 387 | else{ |
| 388 | for(i = 0; i < interrupt_counters->len; i++){ |
| 389 | element = &g_array_index(interrupt_counters,Irq,i); |
| 390 | if(element->id == e->id){ |
| 391 | notFound = TRUE; |
| 392 | duration = ltt_time_sub(time_exit, e->event_time); |
| 393 | element->total_duration = ltt_time_add(element->total_duration, duration); |
| 394 | element->frequency++; |
| 395 | } |
| 396 | } |
| 397 | if(!notFound){ |
| 398 | irq.cpu_id = e->cpu_id; |
| 399 | irq.id = e->id; |
| 400 | irq.frequency++; |
| 401 | irq.total_duration = ltt_time_sub(time_exit, e->event_time); |
| 402 | g_array_append_val (interrupt_counters, irq); |
| 403 | } |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | static void calcul_duration(LttTime time_exit, guint cpu_id,InterruptEventData *event_data){ |
| 408 | |
| 409 | gint i, irq_id; |
| 410 | irq_entry *element; |
| 411 | LttTime duration; |
| 412 | GArray *interrupt_counters = event_data->interrupt_counters; |
| 413 | GArray *active_irq_entry = event_data->active_irq_entry; |
| 414 | for(i = 0; i < active_irq_entry->len; i++){ |
| 415 | element = &g_array_index(active_irq_entry,irq_entry,i); |
| 416 | if(element->cpu_id == cpu_id){ |
| 417 | sum_interrupt_data(element,time_exit, interrupt_counters); |
| 418 | g_array_remove_index(active_irq_entry, i); |
| 419 | // printf("array length:%d\n",active_irq_entry->len); |
| 420 | break; |
| 421 | } |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | |
| 426 | gboolean interrupt_update_time_window(void * hook_data, void * call_data){ |
| 427 | |
| 428 | InterruptEventData *event_data = (InterruptEventData *) hook_data; |
| 429 | const TimeWindowNotifyData *time_window_nofify_data = ((const TimeWindowNotifyData *)call_data); |
| 430 | event_data->time_window = *time_window_nofify_data->new_time_window; |
| 431 | g_info("interrupts: interrupt_update_time_window()\n"); |
| 432 | Tab *tab = event_data->tab; |
| 433 | lttvwindow_events_request_remove_all(tab, event_data); |
| 434 | request_event(event_data); |
| 435 | |
| 436 | |
| 437 | return FALSE; |
| 438 | } |
| 439 | |
| 440 | /** |
| 441 | * plugin's init function |
| 442 | * |
| 443 | * This function initializes the Event Viewer functionnality through the |
| 444 | * gtkTraceSet API. |
| 445 | */ |
| 446 | static void init() { |
| 447 | g_info("interrupts: init()"); |
| 448 | lttvwindow_register_constructor("interrupts", |
| 449 | "/", |
| 450 | "Insert Interrupts View", |
| 451 | hInterruptsInsert_xpm, |
| 452 | "Insert Interrupts View", |
| 453 | interrupts); |
| 454 | |
| 455 | } |
| 456 | |
| 457 | void interrupt_destroy_walk(gpointer data, gpointer user_data){ |
| 458 | g_info("interrupt_destroy_walk"); |
| 459 | interrupt_destructor((InterruptEventData*)data); |
| 460 | |
| 461 | } |
| 462 | |
| 463 | /** |
| 464 | * plugin's destroy function |
| 465 | * |
| 466 | * This function releases the memory reserved by the module and unregisters |
| 467 | * everything that has been registered in the gtkTraceSet API. |
| 468 | */ |
| 469 | static void destroy() { |
| 470 | g_info("Destroy interrupts"); |
| 471 | g_slist_foreach(interrupt_data_list, interrupt_destroy_walk, NULL ); |
| 472 | g_slist_free(interrupt_data_list); |
| 473 | lttvwindow_unregister_constructor(interrupts); |
| 474 | |
| 475 | } |
| 476 | |
| 477 | LTTV_MODULE("interrupts", "interrupts info view", \ |
| 478 | "Graphical module to display interrupts performance", \ |
| 479 | init, destroy, "lttvwindow") |