tests/gobject/performance.c

   1 /* GObject - GLib Type, Object, Parameter and Signal Library
   2  * Copyright (C) 2009 Red Hat, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General
  15  * Public License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include <math.h>
  21 #include <string.h>
  22 #include <glib-object.h>
  23 #include "testcommon.h"
  24
  25 #define WARM_UP_N_RUNS 50
  26 #define ESTIMATE_ROUND_TIME_N_RUNS 5
  27 #define DEFAULT_TEST_TIME 15 /* seconds */
  28  /* The time we want each round to take, in seconds, this should
  29   * be large enough compared to the timer resolution, but small
  30   * enought that the risk of any random slowness will miss the
  31   * running window */
  32 #define TARGET_ROUND_TIME 0.004
  33
  34 static gboolean verbose = FALSE;
  35 static int test_length = DEFAULT_TEST_TIME;
  36
  37 static GOptionEntry cmd_entries[] = {
  38   {"verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose,
  39    "Print extra information", NULL},
  40   {"seconds", 's', 0, G_OPTION_ARG_INT, &test_length,
  41    "Time to run each test in seconds", NULL},
  42   {NULL}
  43 };
  44
  45 typedef struct _PerformanceTest PerformanceTest;
  46 struct _PerformanceTest {
  47   const char *name;
  48   gpointer extra_data;
  49
  50   gpointer (*setup) (PerformanceTest *test);
  51   void (*init) (PerformanceTest *test,
  52                 gpointer data,
  53                 double factor);
  54   void (*run) (PerformanceTest *test,
  55                gpointer data);
  56   void (*finish) (PerformanceTest *test,
  57                   gpointer data);
  58   void (*teardown) (PerformanceTest *test,
  59                     gpointer data);
  60   void (*print_result) (PerformanceTest *test,
  61                         gpointer data,
  62                         double time);
  63 };
  64
  65 static void
  66 run_test (PerformanceTest *test)
  67 {
  68   gpointer data = NULL;
  69   guint64 i, num_rounds;
  70   double elapsed, min_elapsed, factor;
  71   GTimer *timer;
  72
  73   g_print ("Running test %s\n", test->name);
  74
  75   /* Set up test */
  76   timer = g_timer_new ();
  77   data = test->setup (test);
  78
  79   if (verbose)
  80     g_print ("Warming up\n");
  81
  82   /* Warm up the test by doing a few runs */
  83   for (i = 0; i < WARM_UP_N_RUNS; i++)
  84     {
  85       test->init (test, data, 1.0);
  86       test->run (test, data);
  87       test->finish (test, data);
  88     }
  89
  90   if (verbose)
  91     g_print ("Estimating round time\n");
  92
  93   /* Estimate time for one run by doing a few test rounds */
  94   min_elapsed = 0;
  95   for (i = 0; i < ESTIMATE_ROUND_TIME_N_RUNS; i++)
  96     {
  97       test->init (test, data, 1.0);
  98       g_timer_start (timer);
  99       test->run (test, data);
 100       g_timer_stop (timer);
 101       test->finish (test, data);
 102
 103       elapsed = g_timer_elapsed (timer, NULL);
 104       if (i == 0)
 105         min_elapsed = elapsed;
 106       else
 107         min_elapsed = MIN (min_elapsed, elapsed);
 108     }
 109
 110   factor = TARGET_ROUND_TIME / min_elapsed;
 111
 112   if (verbose)
 113     g_print ("Uncorrected round time: %f.4 secs, correction factor %f.2\n", min_elapsed, factor);
 114
 115   /* Calculate number of rounds needed */
 116   num_rounds = (test_length / TARGET_ROUND_TIME) + 1;
 117
 118   if (verbose)
 119     g_print ("Running %"G_GINT64_MODIFIER"d rounds\n", num_rounds);
 120
 121   /* Run the test */
 122   for (i = 0; i < num_rounds; i++)
 123     {
 124       test->init (test, data, factor);
 125       g_timer_start (timer);
 126       test->run (test, data);
 127       g_timer_stop (timer);
 128       test->finish (test, data);
 129       elapsed = g_timer_elapsed (timer, NULL);
 130
 131       if (i == 0)
 132         min_elapsed = elapsed;
 133       else
 134         min_elapsed = MIN (min_elapsed, elapsed);
 135     }
 136
 137   if (verbose)
 138     g_print ("Minimum corrected round time: %f secs\n", min_elapsed);
 139
 140   /* Print the results */
 141   test->print_result (test, data, min_elapsed);
 142
 143   /* Tear down */
 144   test->teardown (test, data);
 145   g_timer_destroy (timer);
 146 }
 147
 148 /*************************************************************
 149  * Simple object is a very simple small GObject subclass
 150  * with no properties, no signals, implementing no interfaces
 151  *************************************************************/
 152
 153 static GType simple_object_get_type (void);
 154 #define SIMPLE_TYPE_OBJECT        (simple_object_get_type ())
 155 typedef struct _SimpleObject      SimpleObject;
 156 typedef struct _SimpleObjectClass   SimpleObjectClass;
 157
 158 struct _SimpleObject
 159 {
 160   GObject parent_instance;
 161   int val;
 162 };
 163
 164 struct _SimpleObjectClass
 165 {
 166   GObjectClass parent_class;
 167 };
 168
 169 G_DEFINE_TYPE (SimpleObject, simple_object, G_TYPE_OBJECT);
 170
 171 static void
 172 simple_object_finalize (GObject *object)
 173 {
 174   G_OBJECT_CLASS (simple_object_parent_class)->finalize (object);
 175 }
 176
 177 static void
 178 simple_object_class_init (SimpleObjectClass *class)
 179 {
 180   GObjectClass *object_class = G_OBJECT_CLASS (class);
 181
 182   object_class->finalize = simple_object_finalize;
 183 }
 184
 185 static void
 186 simple_object_init (SimpleObject *simple_object)
 187 {
 188   simple_object->val = 42;
 189 }
 190
 191 typedef struct _TestIfaceClass TestIfaceClass;
 192 typedef struct _TestIfaceClass TestIface1Class;
 193 typedef struct _TestIfaceClass TestIface2Class;
 194 typedef struct _TestIfaceClass TestIface3Class;
 195 typedef struct _TestIfaceClass TestIface4Class;
 196 typedef struct _TestIfaceClass TestIface5Class;
 197 typedef struct _TestIface TestIface;
 198
 199 struct _TestIfaceClass
 200 {
 201   GTypeInterface base_iface;
 202   void (*method) (TestIface *obj);
 203 };
 204
 205 static GType test_iface1_get_type (void);
 206 static GType test_iface2_get_type (void);
 207 static GType test_iface3_get_type (void);
 208 static GType test_iface4_get_type (void);
 209 static GType test_iface5_get_type (void);
 210
 211 #define TEST_TYPE_IFACE1 (test_iface1_get_type ())
 212 #define TEST_TYPE_IFACE2 (test_iface2_get_type ())
 213 #define TEST_TYPE_IFACE3 (test_iface3_get_type ())
 214 #define TEST_TYPE_IFACE4 (test_iface4_get_type ())
 215 #define TEST_TYPE_IFACE5 (test_iface5_get_type ())
 216
 217 static DEFINE_IFACE (TestIface1, test_iface1,  NULL, NULL)
 218 static DEFINE_IFACE (TestIface2, test_iface2,  NULL, NULL)
 219 static DEFINE_IFACE (TestIface3, test_iface3,  NULL, NULL)
 220 static DEFINE_IFACE (TestIface4, test_iface4,  NULL, NULL)
 221 static DEFINE_IFACE (TestIface5, test_iface5,  NULL, NULL)
 222
 223 /*************************************************************
 224  * Complex object is a GObject subclass with a properties,
 225  * construct properties, signals and implementing an interface.
 226  *************************************************************/
 227
 228 static GType complex_object_get_type (void);
 229 #define COMPLEX_TYPE_OBJECT        (complex_object_get_type ())
 230 typedef struct _ComplexObject      ComplexObject;
 231 typedef struct _ComplexObjectClass ComplexObjectClass;
 232
 233 struct _ComplexObject
 234 {
 235   GObject parent_instance;
 236   int val1;
 237   int val2;
 238 };
 239
 240 struct _ComplexObjectClass
 241 {
 242   GObjectClass parent_class;
 243
 244   void (*signal) (ComplexObject *obj);
 245   void (*signal_empty) (ComplexObject *obj);
 246 };
 247
 248 static void complex_test_iface_init (gpointer         g_iface,
 249                                      gpointer         iface_data);
 250
 251 G_DEFINE_TYPE_EXTENDED (ComplexObject, complex_object,
 252                         G_TYPE_OBJECT, 0,
 253                         G_IMPLEMENT_INTERFACE (TEST_TYPE_IFACE1,
 254                                                complex_test_iface_init)
 255                         G_IMPLEMENT_INTERFACE (TEST_TYPE_IFACE2,
 256                                                complex_test_iface_init)
 257                         G_IMPLEMENT_INTERFACE (TEST_TYPE_IFACE3,
 258                                                complex_test_iface_init)
 259                         G_IMPLEMENT_INTERFACE (TEST_TYPE_IFACE4,
 260                                                complex_test_iface_init)
 261                         G_IMPLEMENT_INTERFACE (TEST_TYPE_IFACE5,
 262                                                complex_test_iface_init)
 263                         );
 264
 265 #define COMPLEX_OBJECT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), COMPLEX_TYPE_OBJECT, ComplexObject))
 266
 267 enum {
 268   PROP_0,
 269   PROP_VAL1,
 270   PROP_VAL2
 271 };
 272
 273 enum {
 274   COMPLEX_SIGNAL,
 275   COMPLEX_SIGNAL_EMPTY,
 276   COMPLEX_SIGNAL_GENERIC,
 277   COMPLEX_SIGNAL_GENERIC_EMPTY,
 278   COMPLEX_LAST_SIGNAL
 279 };
 280
 281 static guint complex_signals[COMPLEX_LAST_SIGNAL] = { 0 };
 282
 283 static void
 284 complex_object_finalize (GObject *object)
 285 {
 286   G_OBJECT_CLASS (complex_object_parent_class)->finalize (object);
 287 }
 288
 289 static void
 290 complex_object_set_property (GObject         *object,
 291                              guint            prop_id,
 292                              const GValue    *value,
 293                              GParamSpec      *pspec)
 294 {
 295   ComplexObject *complex = COMPLEX_OBJECT (object);
 296
 297   switch (prop_id)
 298     {
 299     case PROP_VAL1:
 300       complex->val1 = g_value_get_int (value);
 301       break;
 302     case PROP_VAL2:
 303       complex->val2 = g_value_get_int (value);
 304       break;
 305     default:
 306       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 307       break;
 308     }
 309 }
 310
 311 static void
 312 complex_object_get_property (GObject         *object,
 313                              guint            prop_id,
 314                              GValue          *value,
 315                              GParamSpec      *pspec)
 316 {
 317   ComplexObject *complex = COMPLEX_OBJECT (object);
 318
 319   switch (prop_id)
 320     {
 321     case PROP_VAL1:
 322       g_value_set_int (value, complex->val1);
 323       break;
 324     case PROP_VAL2:
 325       g_value_set_int (value, complex->val2);
 326       break;
 327     default:
 328       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 329       break;
 330     }
 331 }
 332
 333 static void
 334 complex_object_real_signal (ComplexObject *obj)
 335 {
 336 }
 337
 338 static void
 339 complex_object_class_init (ComplexObjectClass *class)
 340 {
 341   GObjectClass *object_class = G_OBJECT_CLASS (class);
 342
 343   object_class->finalize = complex_object_finalize;
 344   object_class->set_property = complex_object_set_property;
 345   object_class->get_property = complex_object_get_property;
 346
 347   class->signal = complex_object_real_signal;
 348
 349   complex_signals[COMPLEX_SIGNAL] =
 350     g_signal_new ("signal",
 351                   G_TYPE_FROM_CLASS (object_class),
 352                   G_SIGNAL_RUN_FIRST,
 353                   G_STRUCT_OFFSET (ComplexObjectClass, signal),
 354                   NULL, NULL,
 355                   g_cclosure_marshal_VOID__VOID,
 356                   G_TYPE_NONE, 0);
 357
 358   complex_signals[COMPLEX_SIGNAL_EMPTY] =
 359     g_signal_new ("signal-empty",
 360                   G_TYPE_FROM_CLASS (object_class),
 361                   G_SIGNAL_RUN_FIRST,
 362                   G_STRUCT_OFFSET (ComplexObjectClass, signal_empty),
 363                   NULL, NULL,
 364                   g_cclosure_marshal_VOID__VOID,
 365                   G_TYPE_NONE, 0);
 366
 367   complex_signals[COMPLEX_SIGNAL_GENERIC] =
 368     g_signal_new ("signal-generic",
 369                   G_TYPE_FROM_CLASS (object_class),
 370                   G_SIGNAL_RUN_FIRST,
 371                   G_STRUCT_OFFSET (ComplexObjectClass, signal),
 372                   NULL, NULL,
 373                   NULL,
 374                   G_TYPE_NONE, 0);
 375   complex_signals[COMPLEX_SIGNAL_GENERIC_EMPTY] =
 376     g_signal_new ("signal-generic-empty",
 377                   G_TYPE_FROM_CLASS (object_class),
 378                   G_SIGNAL_RUN_FIRST,
 379                   G_STRUCT_OFFSET (ComplexObjectClass, signal_empty),
 380                   NULL, NULL,
 381                   NULL,
 382                   G_TYPE_NONE, 0);
 383
 384   g_object_class_install_property (object_class,
 385                                    PROP_VAL1,
 386                                    g_param_spec_int ("val1",
 387                                                      "val1",
 388                                                      "val1",
 389                                                      0,
 390                                                      G_MAXINT,
 391                                                      42,
 392                                                      G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
 393   g_object_class_install_property (object_class,
 394                                    PROP_VAL2,
 395                                    g_param_spec_int ("val2",
 396                                                      "val2",
 397                                                      "val2",
 398                                                      0,
 399                                                      G_MAXINT,
 400                                                      43,
 401                                                      G_PARAM_READWRITE));
 402
 403
 404 }
 405
 406 static void
 407 complex_object_iface_method (TestIface *obj)
 408 {
 409   ComplexObject *complex = COMPLEX_OBJECT (obj);
 410   complex->val1++;
 411 }
 412
 413 static void
 414 complex_test_iface_init (gpointer         g_iface,
 415                          gpointer         iface_data)
 416 {
 417   TestIfaceClass *iface = g_iface;
 418   iface->method = complex_object_iface_method;
 419 }
 420
 421 static void
 422 complex_object_init (ComplexObject *complex_object)
 423 {
 424   complex_object->val2 = 43;
 425 }
 426
 427 /*************************************************************
 428  * Test object construction performance
 429  *************************************************************/
 430
 431 #define NUM_OBJECT_TO_CONSTRUCT 10000
 432
 433 struct ConstructionTest {
 434   GObject **objects;
 435   int n_objects;
 436   GType type;
 437 };
 438
 439 static gpointer
 440 test_construction_setup (PerformanceTest *test)
 441 {
 442   struct ConstructionTest *data;
 443
 444   data = g_new0 (struct ConstructionTest, 1);
 445   data->type = ((GType (*)(void))test->extra_data)();
 446
 447   return data;
 448 }
 449
 450 static void
 451 test_construction_init (PerformanceTest *test,
 452                         gpointer _data,
 453                         double count_factor)
 454 {
 455   struct ConstructionTest *data = _data;
 456   int n;
 457
 458   n = NUM_OBJECT_TO_CONSTRUCT * count_factor;
 459   if (data->n_objects != n)
 460     {
 461       data->n_objects = n;
 462       data->objects = g_new (GObject *, n);
 463     }
 464 }
 465
 466 static void
 467 test_construction_run (PerformanceTest *test,
 468                        gpointer _data)
 469 {
 470   struct ConstructionTest *data = _data;
 471   GObject **objects = data->objects;
 472   GType type = data->type;
 473   int i, n_objects;
 474
 475   n_objects = data->n_objects;
 476   for (i = 0; i < n_objects; i++)
 477     objects[i] = g_object_new (type, NULL);
 478 }
 479
 480 static void
 481 test_construction_finish (PerformanceTest *test,
 482                           gpointer _data)
 483 {
 484   struct ConstructionTest *data = _data;
 485   int i;
 486
 487   for (i = 0; i < data->n_objects; i++)
 488     g_object_unref (data->objects[i]);
 489 }
 490
 491 static void
 492 test_construction_teardown (PerformanceTest *test,
 493                             gpointer _data)
 494 {
 495   struct ConstructionTest *data = _data;
 496   g_free (data->objects);
 497   g_free (data);
 498 }
 499
 500 static void
 501 test_construction_print_result (PerformanceTest *test,
 502                                 gpointer _data,
 503                                 double time)
 504 {
 505   struct ConstructionTest *data = _data;
 506
 507   g_print ("Number of constructed objects per second: %.0f\n",
 508            data->n_objects / time);
 509 }
 510
 511 /*************************************************************
 512  * Test runtime type check performance
 513  *************************************************************/
 514
 515 #define NUM_KILO_CHECKS_PER_ROUND 50
 516
 517 struct TypeCheckTest {
 518   GObject *object;
 519   int n_checks;
 520 };
 521
 522 static gpointer
 523 test_type_check_setup (PerformanceTest *test)
 524 {
 525   struct TypeCheckTest *data;
 526
 527   data = g_new0 (struct TypeCheckTest, 1);
 528   data->object = g_object_new (COMPLEX_TYPE_OBJECT, NULL);
 529
 530   return data;
 531 }
 532
 533 static void
 534 test_type_check_init (PerformanceTest *test,
 535                       gpointer _data,
 536                       double factor)
 537 {
 538   struct TypeCheckTest *data = _data;
 539
 540   data->n_checks = factor * NUM_KILO_CHECKS_PER_ROUND;
 541 }
 542
 543
 544 /* Work around g_type_check_instance_is_a being marked "pure",
 545    and thus only called once for the loop. */
 546 gboolean (*my_type_check_instance_is_a) (GTypeInstance *type_instance,
 547                                          GType          iface_type) = &g_type_check_instance_is_a;
 548
 549 static void
 550 test_type_check_run (PerformanceTest *test,
 551                      gpointer _data)
 552 {
 553   struct TypeCheckTest *data = _data;
 554   volatile GObject *object = data->object;
 555   volatile GType type, types[5];
 556   int i, j;
 557
 558   types[0] = test_iface1_get_type ();
 559   types[1] = test_iface2_get_type ();
 560   types[2] = test_iface3_get_type ();
 561   types[3] = test_iface4_get_type ();
 562   types[4] = test_iface5_get_type ();
 563
 564   for (i = 0; i < data->n_checks; i++)
 565     {
 566       type = types[i%5];
 567       for (j = 0; j < 1000; j++)
 568         {
 569           my_type_check_instance_is_a ((GTypeInstance *)object,
 570                                        type);
 571         }
 572     }
 573 }
 574
 575 static void
 576 test_type_check_finish (PerformanceTest *test,
 577                         gpointer data)
 578 {
 579 }
 580
 581 static void
 582 test_type_check_print_result (PerformanceTest *test,
 583                               gpointer _data,
 584                               double time)
 585 {
 586   struct TypeCheckTest *data = _data;
 587   g_print ("Million type checks per second: %.2f\n",
 588            data->n_checks / (1000*time));
 589 }
 590
 591 static void
 592 test_type_check_teardown (PerformanceTest *test,
 593                           gpointer _data)
 594 {
 595   struct TypeCheckTest *data = _data;
 596
 597   g_object_unref (data->object);
 598   g_free (data);
 599 }
 600
 601 /*************************************************************
 602  * Test signal unhandled emissions performance
 603  *************************************************************/
 604
 605 #define NUM_EMISSIONS_PER_ROUND 10000
 606
 607 struct EmissionTest {
 608   GObject *object;
 609   int n_checks;
 610   int signal_id;
 611 };
 612
 613 static gpointer
 614 test_emission_unhandled_setup (PerformanceTest *test)
 615 {
 616   struct EmissionTest *data;
 617
 618   data = g_new0 (struct EmissionTest, 1);
 619   data->object = g_object_new (COMPLEX_TYPE_OBJECT, NULL);
 620   data->signal_id = complex_signals[GPOINTER_TO_INT (test->extra_data)];
 621   return data;
 622 }
 623
 624 static void
 625 test_emission_unhandled_init (PerformanceTest *test,
 626                               gpointer _data,
 627                               double factor)
 628 {
 629   struct EmissionTest *data = _data;
 630
 631   data->n_checks = factor * NUM_EMISSIONS_PER_ROUND;
 632 }
 633
 634 static void
 635 test_emission_unhandled_run (PerformanceTest *test,
 636                              gpointer _data)
 637 {
 638   struct EmissionTest *data = _data;
 639   GObject *object = data->object;
 640   int i;
 641
 642   for (i = 0; i < data->n_checks; i++)
 643     g_signal_emit (object,
 644                    data->signal_id,
 645                    0);
 646 }
 647
 648 static void
 649 test_emission_unhandled_finish (PerformanceTest *test,
 650                                 gpointer data)
 651 {
 652 }
 653
 654 static void
 655 test_emission_unhandled_print_result (PerformanceTest *test,
 656                                       gpointer _data,
 657                                       double time)
 658 {
 659   struct EmissionTest *data = _data;
 660
 661   g_print ("Emissions per second: %.0f\n",
 662            data->n_checks / time);
 663 }
 664
 665 static void
 666 test_emission_unhandled_teardown (PerformanceTest *test,
 667                                   gpointer _data)
 668 {
 669   struct EmissionTest *data = _data;
 670
 671   g_object_unref (data->object);
 672   g_free (data);
 673 }
 674
 675 /*************************************************************
 676  * Test signal handled emissions performance
 677  *************************************************************/
 678
 679 static void
 680 test_emission_handled_handler (ComplexObject *obj, gpointer data)
 681 {
 682 }
 683
 684 static gpointer
 685 test_emission_handled_setup (PerformanceTest *test)
 686 {
 687   struct EmissionTest *data;
 688
 689   data = g_new0 (struct EmissionTest, 1);
 690   data->object = g_object_new (COMPLEX_TYPE_OBJECT, NULL);
 691   data->signal_id = complex_signals[GPOINTER_TO_INT (test->extra_data)];
 692   g_signal_connect (data->object, "signal",
 693                     G_CALLBACK (test_emission_handled_handler),
 694                     NULL);
 695   g_signal_connect (data->object, "signal-empty",
 696                     G_CALLBACK (test_emission_handled_handler),
 697                     NULL);
 698   g_signal_connect (data->object, "signal-generic",
 699                     G_CALLBACK (test_emission_handled_handler),
 700                     NULL);
 701   g_signal_connect (data->object, "signal-generic-empty",
 702                     G_CALLBACK (test_emission_handled_handler),
 703                     NULL);
 704
 705   return data;
 706 }
 707
 708 static void
 709 test_emission_handled_init (PerformanceTest *test,
 710                             gpointer _data,
 711                             double factor)
 712 {
 713   struct EmissionTest *data = _data;
 714
 715   data->n_checks = factor * NUM_EMISSIONS_PER_ROUND;
 716 }
 717
 718 static void
 719 test_emission_handled_run (PerformanceTest *test,
 720                            gpointer _data)
 721 {
 722   struct EmissionTest *data = _data;
 723   GObject *object = data->object;
 724   int i;
 725
 726   for (i = 0; i < data->n_checks; i++)
 727     g_signal_emit (object,
 728                    data->signal_id,
 729                    0);
 730 }
 731
 732 static void
 733 test_emission_handled_finish (PerformanceTest *test,
 734                               gpointer data)
 735 {
 736 }
 737
 738 static void
 739 test_emission_handled_print_result (PerformanceTest *test,
 740                                     gpointer _data,
 741                                     double time)
 742 {
 743   struct EmissionTest *data = _data;
 744
 745   g_print ("Emissions per second: %.0f\n",
 746            data->n_checks / time);
 747 }
 748
 749 static void
 750 test_emission_handled_teardown (PerformanceTest *test,
 751                                 gpointer _data)
 752 {
 753   struct EmissionTest *data = _data;
 754
 755   g_object_unref (data->object);
 756   g_free (data);
 757 }
 758
 759 /*************************************************************
 760  * Main test code
 761  *************************************************************/
 762
 763 static PerformanceTest tests[] = {
 764   {
 765     "simple-construction",
 766     simple_object_get_type,
 767     test_construction_setup,
 768     test_construction_init,
 769     test_construction_run,
 770     test_construction_finish,
 771     test_construction_teardown,
 772     test_construction_print_result
 773   },
 774   {
 775     "complex-construction",
 776     complex_object_get_type,
 777     test_construction_setup,
 778     test_construction_init,
 779     test_construction_run,
 780     test_construction_finish,
 781     test_construction_teardown,
 782     test_construction_print_result
 783   },
 784   {
 785     "type-check",
 786     NULL,
 787     test_type_check_setup,
 788     test_type_check_init,
 789     test_type_check_run,
 790     test_type_check_finish,
 791     test_type_check_teardown,
 792     test_type_check_print_result
 793   },
 794   {
 795     "emit-unhandled",
 796     GINT_TO_POINTER (COMPLEX_SIGNAL),
 797     test_emission_unhandled_setup,
 798     test_emission_unhandled_init,
 799     test_emission_unhandled_run,
 800     test_emission_unhandled_finish,
 801     test_emission_unhandled_teardown,
 802     test_emission_unhandled_print_result
 803   },
 804   {
 805     "emit-unhandled-empty",
 806     GINT_TO_POINTER (COMPLEX_SIGNAL_EMPTY),
 807     test_emission_unhandled_setup,
 808     test_emission_unhandled_init,
 809     test_emission_unhandled_run,
 810     test_emission_unhandled_finish,
 811     test_emission_unhandled_teardown,
 812     test_emission_unhandled_print_result
 813   },
 814   {
 815     "emit-unhandled-generic",
 816     GINT_TO_POINTER (COMPLEX_SIGNAL_GENERIC),
 817     test_emission_unhandled_setup,
 818     test_emission_unhandled_init,
 819     test_emission_unhandled_run,
 820     test_emission_unhandled_finish,
 821     test_emission_unhandled_teardown,
 822     test_emission_unhandled_print_result
 823   },
 824   {
 825     "emit-unhandled-generic-empty",
 826     GINT_TO_POINTER (COMPLEX_SIGNAL_GENERIC_EMPTY),
 827     test_emission_unhandled_setup,
 828     test_emission_unhandled_init,
 829     test_emission_unhandled_run,
 830     test_emission_unhandled_finish,
 831     test_emission_unhandled_teardown,
 832     test_emission_unhandled_print_result
 833   },
 834   {
 835     "emit-handled",
 836     GINT_TO_POINTER (COMPLEX_SIGNAL),
 837     test_emission_handled_setup,
 838     test_emission_handled_init,
 839     test_emission_handled_run,
 840     test_emission_handled_finish,
 841     test_emission_handled_teardown,
 842     test_emission_handled_print_result
 843   },
 844   {
 845     "emit-handled-empty",
 846     GINT_TO_POINTER (COMPLEX_SIGNAL_EMPTY),
 847     test_emission_handled_setup,
 848     test_emission_handled_init,
 849     test_emission_handled_run,
 850     test_emission_handled_finish,
 851     test_emission_handled_teardown,
 852     test_emission_handled_print_result
 853   },
 854   {
 855     "emit-handled-generic",
 856     GINT_TO_POINTER (COMPLEX_SIGNAL_GENERIC),
 857     test_emission_handled_setup,
 858     test_emission_handled_init,
 859     test_emission_handled_run,
 860     test_emission_handled_finish,
 861     test_emission_handled_teardown,
 862     test_emission_handled_print_result
 863   },
 864   {
 865     "emit-handled-generic-empty",
 866     GINT_TO_POINTER (COMPLEX_SIGNAL_GENERIC_EMPTY),
 867     test_emission_handled_setup,
 868     test_emission_handled_init,
 869     test_emission_handled_run,
 870     test_emission_handled_finish,
 871     test_emission_handled_teardown,
 872     test_emission_handled_print_result
 873   }
 874 };
 875
 876 static PerformanceTest *
 877 find_test (const char *name)
 878 {
 879   int i;
 880   for (i = 0; i < G_N_ELEMENTS (tests); i++)
 881     {
 882       if (strcmp (tests[i].name, name) == 0)
 883         return &tests[i];
 884     }
 885   return NULL;
 886 }
 887 int
 888 main (int   argc,
 889       char *argv[])
 890 {
 891   PerformanceTest *test;
 892   GOptionContext *context;
 893   GError *error = NULL;
 894   int i;
 895
 896   context = g_option_context_new ("GObject performance tests");
 897   g_option_context_add_main_entries (context, cmd_entries, NULL);
 898   if (!g_option_context_parse (context, &argc, &argv, &error))
 899     {
 900       g_printerr ("%s: %s\n", argv[0], error->message);
 901       return 1;
 902     }
 903
 904   if (argc > 1)
 905     {
 906       for (i = 1; i < argc; i++)
 907         {
 908           test = find_test (argv[i]);
 909           if (test)
 910             run_test (test);
 911         }
 912     }
 913   else
 914     {
 915       for (i = 0; i < G_N_ELEMENTS (tests); i++)
 916         run_test (&tests[i]);
 917     }
 918
 919   return 0;
 920 }