winalski@psw.DEC.COM (Paul S. Winalski) (05/23/87)
The TPU Project Leader has asked me to post these results from running the original, unmodified TPU procedure that shows up the buffer allocation bug. I think we can safely say that this performance problem will be fixed in an upcoming TPU version! --PSW ================================================================================ Recent INFO-VAX articles discussed a performance problem in TPU involving repeated ERASEs and COPY_TEXTs. Enclosed below are the run results for a VAX-11/785 and VAX 8700 taken during normal timesharing. The procedure used was the *original*, *unmodified* procedure. The TPU used was the TPU discussed in the recent Nashville DECUS at the VMS futures session. Please note that in both cases, the TPU part of the job was quite often waiting for the logging part of the job is process its output records! VAX-11/785 run results: Date and Time Iterations I/O CPU Page flts Ph.Mem 22-MAY-1987 09:58:13.03 0 327 0 00:00:06.30 1153 449 22-MAY-1987 09:58:17.25 1 329 0 00:00:07.42 1176 472 22-MAY-1987 09:58:21.60 2 331 0 00:00:08.54 1176 472 22-MAY-1987 09:58:26.39 3 333 0 00:00:09.65 1176 472 22-MAY-1987 09:58:33.71 4 335 0 00:00:10.77 1176 472 22-MAY-1987 09:58:38.29 5 337 0 00:00:11.87 1176 472 22-MAY-1987 09:58:42.58 6 339 0 00:00:13.01 1176 472 22-MAY-1987 09:58:46.61 7 341 0 00:00:14.11 1176 472 22-MAY-1987 09:58:50.97 8 343 0 00:00:15.23 1176 472 22-MAY-1987 09:58:56.40 9 345 0 00:00:16.39 1176 472 22-MAY-1987 09:59:00.74 10 350 0 00:00:17.53 1180 476 22-MAY-1987 09:59:04.86 11 352 0 00:00:18.67 1180 476 22-MAY-1987 09:59:09.30 12 354 0 00:00:19.81 1180 476 22-MAY-1987 09:59:14.48 13 356 0 00:00:20.94 1180 476 22-MAY-1987 09:59:20.50 14 358 0 00:00:22.10 1180 476 22-MAY-1987 09:59:27.22 15 360 0 00:00:23.24 1180 476 22-MAY-1987 09:59:34.37 16 360 0 00:00:24.42 1180 476 22-MAY-1987 09:59:41.05 17 364 0 00:00:25.60 1180 476 22-MAY-1987 09:59:50.48 18 366 0 00:00:26.69 1180 476 22-MAY-1987 09:59:55.89 19 368 0 00:00:27.85 1180 476 22-MAY-1987 10:00:16.26 20 370 0 00:00:28.96 1180 476 22-MAY-1987 10:00:33.90 21 372 0 00:00:30.22 1180 476 22-MAY-1987 10:00:40.99 22 372 0 00:00:31.40 1180 476 22-MAY-1987 10:00:59.90 23 376 0 00:00:32.58 1180 476 22-MAY-1987 10:01:15.89 24 376 0 00:00:33.71 1180 476 22-MAY-1987 10:01:24.66 25 380 0 00:00:34.81 1180 476 22-MAY-1987 10:01:29.18 26 382 0 00:00:35.93 1180 476 22-MAY-1987 10:01:33.75 27 384 0 00:00:37.06 1180 476 22-MAY-1987 10:01:39.92 28 386 0 00:00:38.22 1180 476 22-MAY-1987 10:01:44.19 29 388 0 00:00:39.34 1180 476 22-MAY-1987 10:01:48.84 30 390 0 00:00:40.44 1180 476 22-MAY-1987 10:01:53.78 31 392 0 00:00:41.54 1180 476 22-MAY-1987 10:02:03.06 32 394 0 00:00:42.72 1180 476 22-MAY-1987 10:02:13.68 33 396 0 00:00:43.88 1180 476 22-MAY-1987 10:02:25.47 34 398 0 00:00:44.97 1180 476 22-MAY-1987 10:02:30.34 35 400 0 00:00:46.10 1180 476 22-MAY-1987 10:02:35.50 36 402 0 00:00:47.22 1180 476 22-MAY-1987 10:02:53.93 37 404 0 00:00:48.36 1180 476 22-MAY-1987 10:02:58.44 38 406 0 00:00:49.51 1180 476 22-MAY-1987 10:03:02.76 39 408 0 00:00:50.64 1180 476 22-MAY-1987 10:03:06.88 40 410 0 00:00:51.73 1180 476 22-MAY-1987 10:03:11.08 41 412 0 00:00:52.84 1180 476 22-MAY-1987 10:03:15.16 42 414 0 00:00:53.97 1180 476 22-MAY-1987 10:03:19.13 43 416 0 00:00:55.06 1180 476 22-MAY-1987 10:03:23.27 44 418 0 00:00:56.19 1180 476 22-MAY-1987 10:03:27.32 45 420 0 00:00:57.33 1180 476 22-MAY-1987 10:03:31.56 46 422 0 00:00:58.45 1180 476 22-MAY-1987 10:03:35.57 47 424 0 00:00:59.56 1180 476 22-MAY-1987 10:03:39.83 48 426 0 00:01:00.67 1180 476 22-MAY-1987 10:03:43.87 49 428 0 00:01:01.77 1180 476 22-MAY-1987 10:03:48.01 50 430 0 00:01:02.90 1180 476 VAX 8700 run results: Date and Time Iterations I/O CPU Page flts Ph.Mem 22-MAY-1987 09:39:51.25 0 334 0 00:00:01.64 1208 478 22-MAY-1987 09:39:54.20 1 336 0 00:00:01.89 1230 500 22-MAY-1987 09:39:56.52 2 338 0 00:00:02.13 1230 500 22-MAY-1987 09:39:59.14 3 340 0 00:00:02.35 1230 500 22-MAY-1987 09:40:01.47 4 342 0 00:00:02.59 1230 500 22-MAY-1987 09:40:03.78 5 344 0 00:00:02.82 1230 500 22-MAY-1987 09:40:06.47 6 346 0 00:00:03.08 1230 500 22-MAY-1987 09:40:08.85 7 348 0 00:00:03.32 1230 500 22-MAY-1987 09:40:11.30 8 350 0 00:00:03.55 1230 500 22-MAY-1987 09:40:14.26 9 352 0 00:00:03.81 1230 500 22-MAY-1987 09:40:16.74 10 354 0 00:00:04.05 1230 500 22-MAY-1987 09:40:19.04 11 356 0 00:00:04.31 1230 500 22-MAY-1987 09:40:21.51 12 358 0 00:00:04.55 1230 500 22-MAY-1987 09:40:24.31 13 360 0 00:00:04.80 1230 500 22-MAY-1987 09:40:26.87 14 362 0 00:00:05.04 1230 500 22-MAY-1987 09:40:29.39 15 364 0 00:00:05.27 1230 500 22-MAY-1987 09:40:31.64 16 366 0 00:00:05.51 1230 500 22-MAY-1987 09:40:33.88 17 368 0 00:00:05.75 1230 500 22-MAY-1987 09:40:36.12 18 370 0 00:00:05.98 1230 500 22-MAY-1987 09:40:38.78 19 372 0 00:00:06.21 1230 500 22-MAY-1987 09:40:41.25 20 374 0 00:00:06.43 1230 500 22-MAY-1987 09:40:43.40 21 376 0 00:00:06.67 1230 500 22-MAY-1987 09:40:45.64 22 378 0 00:00:06.91 1230 500 22-MAY-1987 09:40:47.83 23 383 0 00:00:07.16 1234 504 22-MAY-1987 09:40:49.99 24 385 0 00:00:07.41 1234 504 22-MAY-1987 09:40:52.26 25 387 0 00:00:07.65 1234 504 22-MAY-1987 09:40:54.45 26 389 0 00:00:07.88 1234 504 22-MAY-1987 09:40:56.65 27 391 0 00:00:08.12 1234 504 22-MAY-1987 09:40:58.91 28 393 0 00:00:08.38 1234 504 22-MAY-1987 09:41:01.06 29 395 0 00:00:08.63 1234 504 22-MAY-1987 09:41:03.31 30 397 0 00:00:08.89 1234 504 22-MAY-1987 09:41:05.68 31 399 0 00:00:09.13 1234 504 22-MAY-1987 09:41:07.98 32 401 0 00:00:09.37 1234 504 22-MAY-1987 09:41:10.17 33 403 0 00:00:09.60 1234 504 22-MAY-1987 09:41:12.31 34 405 0 00:00:09.85 1234 504 22-MAY-1987 09:41:15.21 35 407 0 00:00:10.08 1234 504 22-MAY-1987 09:41:17.40 36 409 0 00:00:10.32 1234 504 22-MAY-1987 09:41:19.52 37 411 0 00:00:10.55 1234 504 22-MAY-1987 09:41:21.84 38 413 0 00:00:10.80 1234 504 22-MAY-1987 09:41:24.05 39 415 0 00:00:11.07 1234 504 22-MAY-1987 09:41:26.02 40 417 0 00:00:11.33 1234 504 22-MAY-1987 09:41:28.28 41 419 0 00:00:11.56 1234 504 22-MAY-1987 09:41:30.33 42 421 0 00:00:11.78 1234 504 22-MAY-1987 09:41:32.29 43 423 0 00:00:12.03 1234 504 22-MAY-1987 09:41:34.61 44 425 0 00:00:12.27 1234 504 22-MAY-1987 09:41:36.68 45 427 0 00:00:12.51 1234 504 22-MAY-1987 09:41:38.76 46 429 0 00:00:12.76 1234 504 22-MAY-1987 09:41:40.79 47 431 0 00:00:12.99 1234 504 22-MAY-1987 09:41:42.89 48 433 0 00:00:13.22 1234 504 22-MAY-1987 09:41:45.15 49 435 0 00:00:13.47 1234 504 22-MAY-1987 09:41:47.16 50 437 0 00:00:13.72 1234 504