| 417 | |
| 418 | |
| 419 | void nativeStress(bool useShm) |
| 420 | { |
| 421 | int i, n; double testTime; |
| 422 | Thread *thread[4]; |
| 423 | Timer timer; |
| 424 | |
| 425 | try |
| 426 | { |
| 427 | clearFB(); |
| 428 | if(useShm) |
| 429 | fprintf(stderr, "FBX write [multithreaded SHM]: "); |
| 430 | else |
| 431 | fprintf(stderr, "FBX write [multithreaded]: "); |
| 432 | n = N; |
| 433 | do |
| 434 | { |
| 435 | n += n; |
| 436 | timer.start(); |
| 437 | WriteThread *writeThread[4]; |
| 438 | for(i = 0; i < 4; i++) |
| 439 | { |
| 440 | writeThread[i] = new WriteThread(i, n, useShm ? 1 : 0); |
| 441 | thread[i] = new Thread(writeThread[i]); |
| 442 | thread[i]->start(); |
| 443 | } |
| 444 | for(i = 0; i < 4; i++) thread[i]->stop(); |
| 445 | for(i = 0; i < 4; i++) thread[i]->checkError(); |
| 446 | for(i = 0; i < 4; i++) |
| 447 | { |
| 448 | delete thread[i]; delete writeThread[i]; |
| 449 | } |
| 450 | testTime = timer.elapsed(); |
| 451 | } while(testTime < 1.); |
| 452 | fprintf(stderr, "%f Mpixels/sec\n", |
| 453 | (double)n * (double)(drawableWidth * drawableHeight) / |
| 454 | (1000000. * testTime)); |
| 455 | |
| 456 | } |
| 457 | catch(std::exception &e) |
| 458 | { |
| 459 | fprintf(stderr, "%s\n", e.what()); |
| 460 | } |
| 461 | |
| 462 | try |
| 463 | { |
| 464 | if(useShm) |
| 465 | fprintf(stderr, "FBX read [multithreaded SHM]: "); |
| 466 | else |
| 467 | fprintf(stderr, "FBX read [multithreaded]: "); |
| 468 | n = N; |
| 469 | do |
| 470 | { |
| 471 | n += n; |
| 472 | timer.start(); |
| 473 | ReadThread *readThread[4]; |
| 474 | for(i = 0; i < 4; i++) |
| 475 | { |
| 476 | readThread[i] = new ReadThread(i, n, useShm); |