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2026-08-05 - 22:23

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #8

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackcslot8s.osadl.org (updated Wed Aug 05, 2026 12:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391620,6ptp4l0-21swapper/107:05:481
194212610,2sleep12701999cyclictest11:00:181
111391600,5ptp4l0-21swapper/407:09:134
111391600,5ptp4l0-21swapper/007:08:240
2641625848,6sleep20-21swapper/207:05:422
6322570,0sleep00-21swapper/010:35:180
2643825241,6sleep70-21swapper/707:05:567
2640224937,7sleep60-21swapper/607:05:316
111391480,15ptp4l0-21swapper/507:05:585
2648824635,7sleep30-21swapper/307:06:403
111391340,0ptp4l0-21swapper/107:30:011
111391330,1ptp4l32443-21/usr/sbin/munin09:50:120
111391330,0ptp4l0-21swapper/510:43:575
111391330,0ptp4l0-21swapper/410:15:144
111391310,4ptp4l0-21swapper/011:05:190
111391310,0ptp4l0-21swapper/712:15:467
111391310,0ptp4l0-21swapper/510:57:335
111391310,0ptp4l0-21swapper/009:28:510
111391300,7ptp4l0-21swapper/312:06:193
111391300,3ptp4l0-21swapper/009:16:390
111391300,2ptp4l0-21swapper/011:46:490
111391300,0ptp4l0-21swapper/612:15:156
111391300,0ptp4l0-21swapper/511:48:035
111391300,0ptp4l0-21swapper/412:37:074
111391300,0ptp4l0-21swapper/412:30:404
111391300,0ptp4l0-21swapper/410:01:324
111391290,3ptp4l0-21swapper/011:17:200
111391290,0ptp4l0-21swapper/410:46:024
111391290,0ptp4l0-21swapper/109:38:311
111391290,0ptp4l0-21swapper/012:10:180
111391290,0ptp4l0-21swapper/011:37:230
111391290,0ptp4l0-21swapper/011:22:590
111391290,0ptp4l0-21swapper/011:13:290
111391290,0ptp4l0-21swapper/010:44:340
111391280,0ptp4l0-21swapper/711:09:227
111391280,0ptp4l0-21swapper/512:14:545
111391280,0ptp4l0-21swapper/409:52:384
111391280,0ptp4l0-21swapper/110:20:441
111391280,0ptp4l0-21swapper/010:29:570
111391280,0ptp4l0-21swapper/008:22:550
111391270,2ptp4l0-21swapper/011:34:490
111391270,0ptp4l0-21swapper/511:32:515
111391270,0ptp4l0-21swapper/412:24:374
111391270,0ptp4l0-21swapper/411:53:274
111391270,0ptp4l0-21swapper/411:53:264
111391270,0ptp4l0-21swapper/112:26:391
111391270,0ptp4l0-21swapper/109:46:421
111391270,0ptp4l0-21swapper/012:03:330
111391270,0ptp4l0-21swapper/010:59:540
111391270,0ptp4l0-21swapper/010:31:440
111391270,0ptp4l0-21swapper/010:08:550
111391270,0ptp4l0-21swapper/010:02:150
111391270,0ptp4l0-21swapper/009:32:340
111391260,1ptp4l15491-21memory10:55:154
111391260,0ptp4l0-21swapper/412:08:314
111391260,0ptp4l0-21swapper/411:10:324
111391260,0ptp4l0-21swapper/410:54:584
111391260,0ptp4l0-21swapper/409:49:294
111391260,0ptp4l0-21swapper/109:51:371
111391260,0ptp4l0-21swapper/012:36:290
111391260,0ptp4l0-21swapper/009:23:170
111391260,0ptp4l0-21swapper/008:07:520
111391250,1ptp4l0-21swapper/511:00:015
111391250,0ptp4l0-21swapper/512:22:285
111391250,0ptp4l0-21swapper/511:43:175
111391250,0ptp4l0-21swapper/510:45:135
111391250,0ptp4l0-21swapper/411:05:124
111391250,0ptp4l0-21swapper/410:44:454
111391250,0ptp4l0-21swapper/410:38:584
111391250,0ptp4l0-21swapper/112:01:201
111391250,0ptp4l0-21swapper/110:42:151
111391250,0ptp4l0-21swapper/012:20:190
111391250,0ptp4l0-21swapper/010:49:420
111391250,0ptp4l0-21swapper/009:58:570
111391250,0ptp4l0-21swapper/008:26:510
111391240,1ptp4l9608-21/usr/sbin/munin11:30:166
111391240,1ptp4l8444-21smartctl10:45:191
111391240,1ptp4l31076-21kworker/1:111:15:181
111391240,1ptp4l1985-21latency_hist07:55:004
111391240,1ptp4l18472-21missed_timers10:15:171
111391240,0ptp4l13301-21diskmemload10:10:200
111391240,0ptp4l0-21swapper/512:30:145
111391240,0ptp4l0-21swapper/511:22:375
111391240,0ptp4l0-21swapper/510:29:425
111391240,0ptp4l0-21swapper/510:19:155
111391240,0ptp4l0-21swapper/510:07:545
111391240,0ptp4l0-21swapper/509:38:305
111391240,0ptp4l0-21swapper/411:44:594
111391240,0ptp4l0-21swapper/411:23:154
111391240,0ptp4l0-21swapper/411:17:204
111391240,0ptp4l0-21swapper/410:08:484
111391240,0ptp4l0-21swapper/409:35:014
111391240,0ptp4l0-21swapper/409:17:544
111391240,0ptp4l0-21swapper/407:25:004
111391240,0ptp4l0-21swapper/212:15:202
111391240,0ptp4l0-21swapper/111:46:051
111391240,0ptp4l0-21swapper/110:50:111
111391240,0ptp4l0-21swapper/109:16:161
111391240,0ptp4l0-21swapper/109:13:441
111391240,0ptp4l0-21swapper/109:13:431
111391240,0ptp4l0-21swapper/107:15:011
111391230,2ptp4l0-21swapper/512:18:275
111391230,1ptp4l9-21ksoftirqd/012:06:530
111391230,1ptp4l73-21ksoftirqd/712:05:417
111391230,0ptp4l25-21ksoftirqd/110:27:251
111391230,0ptp4l0-21swapper/707:35:007
111391230,0ptp4l0-21swapper/610:50:236
111391230,0ptp4l0-21swapper/512:35:135
111391230,0ptp4l0-21swapper/511:55:215
111391230,0ptp4l0-21swapper/511:29:595
111391230,0ptp4l0-21swapper/511:06:495
111391230,0ptp4l0-21swapper/510:37:155
111391230,0ptp4l0-21swapper/510:32:195
111391230,0ptp4l0-21swapper/509:59:115
111391230,0ptp4l0-21swapper/412:19:464
111391230,0ptp4l0-21swapper/412:00:194
111391230,0ptp4l0-21swapper/411:49:554
111391230,0ptp4l0-21swapper/411:37:024
111391230,0ptp4l0-21swapper/411:25:144
111391230,0ptp4l0-21swapper/410:34:544
111391230,0ptp4l0-21swapper/410:25:194
111391230,0ptp4l0-21swapper/410:20:184
111391230,0ptp4l0-21swapper/410:12:594
111391230,0ptp4l0-21swapper/409:34:484
111391230,0ptp4l0-21swapper/409:29:574
111391230,0ptp4l0-21swapper/408:50:004
111391230,0ptp4l0-21swapper/407:39:374
111391230,0ptp4l0-21swapper/311:09:373
111391230,0ptp4l0-21swapper/211:30:132
111391230,0ptp4l0-21swapper/210:50:172
111391230,0ptp4l0-21swapper/210:00:152
111391230,0ptp4l0-21swapper/112:35:151
111391230,0ptp4l0-21swapper/112:30:051
111391230,0ptp4l0-21swapper/112:15:011
111391230,0ptp4l0-21swapper/111:55:111
111391230,0ptp4l0-21swapper/111:43:171
111391230,0ptp4l0-21swapper/111:05:221
111391230,0ptp4l0-21swapper/110:30:231
111391230,0ptp4l0-21swapper/110:10:171
111391230,0ptp4l0-21swapper/110:06:351
111391230,0ptp4l0-21swapper/109:55:151
111391230,0ptp4l0-21swapper/011:56:250
111391230,0ptp4l0-21swapper/011:52:100
111391230,0ptp4l0-21swapper/011:52:100
111391230,0ptp4l0-21swapper/011:40:160
111391230,0ptp4l0-21swapper/011:25:120
111391230,0ptp4l0-21swapper/011:00:120
111391230,0ptp4l0-21swapper/010:53:160
111391230,0ptp4l0-21swapper/010:23:320
111391230,0ptp4l0-21swapper/010:16:480
111391230,0ptp4l0-21swapper/009:48:210
111391220,2ptp4l101ktimersoftd/009:40:500
111391220,0ptp4l0-21swapper/711:42:117
111391220,0ptp4l0-21swapper/710:56:277
111391220,0ptp4l0-21swapper/710:02:347
111391220,0ptp4l0-21swapper/611:37:506
111391220,0ptp4l0-21swapper/610:24:096
111391220,0ptp4l0-21swapper/610:00:146
111391220,0ptp4l0-21swapper/512:29:215
111391220,0ptp4l0-21swapper/512:00:075
111391220,0ptp4l0-21swapper/511:54:095
111391220,0ptp4l0-21swapper/511:54:095
111391220,0ptp4l0-21swapper/511:15:185
111391220,0ptp4l0-21swapper/510:50:145
111391220,0ptp4l0-21swapper/510:22:005
111391220,0ptp4l0-21swapper/510:10:195
111391220,0ptp4l0-21swapper/509:50:405
111391220,0ptp4l0-21swapper/509:47:165
111391220,0ptp4l0-21swapper/509:41:535
111391220,0ptp4l0-21swapper/509:23:135
111391220,0ptp4l0-21swapper/509:13:435
111391220,0ptp4l0-21swapper/509:13:425
111391220,0ptp4l0-21swapper/508:46:505
111391220,0ptp4l0-21swapper/508:11:195
111391220,0ptp4l0-21swapper/507:57:455
111391220,0ptp4l0-21swapper/507:38:515
111391220,0ptp4l0-21swapper/412:25:174
111391220,0ptp4l0-21swapper/412:10:104
111391220,0ptp4l0-21swapper/411:55:014
111391220,0ptp4l0-21swapper/411:30:114
111391220,0ptp4l0-21swapper/411:00:144
111391220,0ptp4l0-21swapper/409:57:314
111391220,0ptp4l0-21swapper/409:40:514
111391220,0ptp4l0-21swapper/409:22:414
111391220,0ptp4l0-21swapper/409:08:024
111391220,0ptp4l0-21swapper/311:41:463
111391220,0ptp4l0-21swapper/309:39:263
111391220,0ptp4l0-21swapper/211:37:442
111391220,0ptp4l0-21swapper/210:24:112
111391220,0ptp4l0-21swapper/209:25:172
111391220,0ptp4l0-21swapper/112:22:051
111391220,0ptp4l0-21swapper/112:13:071
111391220,0ptp4l0-21swapper/111:38:161
111391220,0ptp4l0-21swapper/111:30:041
111391220,0ptp4l0-21swapper/111:29:081
111391220,0ptp4l0-21swapper/111:21:501
111391220,0ptp4l0-21swapper/110:57:151
111391220,0ptp4l0-21swapper/110:36:491
111391220,0ptp4l0-21swapper/109:40:491
111391220,0ptp4l0-21swapper/109:25:351
111391220,0ptp4l0-21swapper/109:24:551
111391220,0ptp4l0-21swapper/108:11:591
111391220,0ptp4l0-21swapper/107:50:161
111391220,0ptp4l0-21swapper/107:45:001
111391220,0ptp4l0-21swapper/012:30:340
111391220,0ptp4l0-21swapper/012:25:000
111391220,0ptp4l0-21swapper/012:15:130
111391220,0ptp4l0-21swapper/009:37:260
111391220,0ptp4l0-21swapper/009:10:510
111391220,0ptp4l0-21swapper/009:10:510
111391220,0ptp4l0-21swapper/008:55:000
111391220,0ptp4l0-21swapper/008:01:000
111391210,0ptp4l16644-21ssh10:56:293
111391210,0ptp4l0-21swapper/710:14:367
111391210,0ptp4l0-21swapper/707:45:497
111391210,0ptp4l0-21swapper/609:41:006
111391210,0ptp4l0-21swapper/609:25:146
111391210,0ptp4l0-21swapper/511:38:155
111391210,0ptp4l0-21swapper/509:33:495
111391210,0ptp4l0-21swapper/509:15:545
111391210,0ptp4l0-21swapper/508:28:295
111391210,0ptp4l0-21swapper/508:01:525
111391210,0ptp4l0-21swapper/507:47:195
111391210,0ptp4l0-21swapper/507:43:045
111391210,0ptp4l0-21swapper/507:30:125
111391210,0ptp4l0-21swapper/507:27:105
111391210,0ptp4l0-21swapper/409:10:014
111391210,0ptp4l0-21swapper/409:10:004
111391210,0ptp4l0-21swapper/408:25:164
111391210,0ptp4l0-21swapper/408:02:514
111391210,0ptp4l0-21swapper/407:15:084
111391210,0ptp4l0-21swapper/312:15:403
111391210,0ptp4l0-21swapper/310:14:333
111391210,0ptp4l0-21swapper/310:02:513
111391210,0ptp4l0-21swapper/307:34:243
111391210,0ptp4l0-21swapper/211:44:132
111391210,0ptp4l0-21swapper/209:22:442
111391210,0ptp4l0-21swapper/111:51:501
111391210,0ptp4l0-21swapper/111:51:501
111391210,0ptp4l0-21swapper/107:30:211
111391210,0ptp4l0-21swapper/107:22:281
111391210,0ptp4l0-21swapper/009:00:540
111391210,0ptp4l0-21swapper/007:20:010
111391210,0ptp4l0-21swapper/007:17:520
111391200,0ptp4l0-21swapper/709:39:367
111391200,0ptp4l0-21swapper/611:22:076
111391200,0ptp4l0-21swapper/610:48:016
111391200,0ptp4l0-21swapper/509:27:185
111391200,0ptp4l0-21swapper/508:31:535
111391200,0ptp4l0-21swapper/408:50:004
111391200,0ptp4l0-21swapper/408:39:514
111391200,0ptp4l0-21swapper/408:31:434
111391200,0ptp4l0-21swapper/408:22:474
111391200,0ptp4l0-21swapper/408:18:154
111391200,0ptp4l0-21swapper/407:40:514
111391200,0ptp4l0-21swapper/210:48:032
111391200,0ptp4l0-21swapper/209:40:022
111391200,0ptp4l0-21swapper/109:32:221
111391200,0ptp4l0-21swapper/108:56:261
111391200,0ptp4l0-21swapper/108:47:531
111391200,0ptp4l0-21swapper/108:32:521
111391200,0ptp4l0-21swapper/108:02:231
111391200,0ptp4l0-21swapper/107:42:511
111391200,0ptp4l0-21swapper/107:14:331
111391200,0ptp4l0-21swapper/009:05:520
111391200,0ptp4l0-21swapper/008:50:000
111391200,0ptp4l0-21swapper/008:33:520
111391200,0ptp4l0-21swapper/007:58:120
111391200,0ptp4l0-21swapper/007:45:510
111391200,0ptp4l0-21swapper/007:40:360
111391200,0ptp4l0-21swapper/007:28:510
111391190,3ptp4l0-21swapper/007:31:560
111391190,2ptp4l0-21swapper/007:13:170
111391190,0ptp4l0-21swapper/710:33:117
111391190,0ptp4l0-21swapper/707:35:467
111391190,0ptp4l0-21swapper/608:17:516
111391190,0ptp4l0-21swapper/509:02:575
111391190,0ptp4l0-21swapper/508:59:145
111391190,0ptp4l0-21swapper/408:56:524
111391190,0ptp4l0-21swapper/408:41:154
111391190,0ptp4l0-21swapper/407:55:484
111391190,0ptp4l0-21swapper/407:31:024
111391190,0ptp4l0-21swapper/407:28:274
111391190,0ptp4l0-21swapper/407:13:504
111391190,0ptp4l0-21swapper/211:22:072
111391190,0ptp4l0-21swapper/109:00:141
111391190,0ptp4l0-21swapper/108:52:251
111391190,0ptp4l0-21swapper/108:36:511
111391190,0ptp4l0-21swapper/107:57:531
111391190,0ptp4l0-21swapper/008:40:230
111391190,0ptp4l0-21swapper/008:17:250
111391190,0ptp4l0-21swapper/007:39:510
111391180,2ptp4l0-21swapper/508:51:445
111391180,1ptp4l0-21swapper/707:10:067
111391180,0ptp4l0-21swapper/609:22:466
111391180,0ptp4l0-21swapper/508:37:005
111391180,0ptp4l0-21swapper/508:09:555
111391180,0ptp4l0-21swapper/507:21:045
111391180,0ptp4l0-21swapper/409:04:444
111391180,0ptp4l0-21swapper/408:11:384
111391180,0ptp4l0-21swapper/310:33:143
111391180,0ptp4l0-21swapper/307:35:423
111391180,0ptp4l0-21swapper/108:15:431
111391170,2ptp4l0-21swapper/108:24:111
111391170,0ptp4l0-21swapper/008:51:140
111391170,0ptp4l0-21swapper/008:36:190
111391160,0ptp4l561ktimersoftd/507:50:135
111391160,0ptp4l0-21swapper/508:15:015
111391160,0ptp4l0-21swapper/308:30:013
111391160,0ptp4l0-21swapper/307:10:213
111391160,0ptp4l0-21swapper/111:10:311
111391160,0ptp4l0-21swapper/110:03:541
111391160,0ptp4l0-21swapper/108:43:121
111391160,0ptp4l0-21swapper/108:28:201
111391160,0ptp4l0-21swapper/108:07:061
111391150,0ptp4l0-21swapper/708:30:017
111391150,0ptp4l0-21swapper/708:16:387
111391150,0ptp4l0-21swapper/609:05:536
111391150,0ptp4l0-21swapper/608:55:346
111391150,0ptp4l0-21swapper/608:05:056
111391150,0ptp4l0-21swapper/608:00:096
111391150,0ptp4l0-21swapper/607:51:126
111391150,0ptp4l0-21swapper/509:05:115
111391150,0ptp4l0-21swapper/508:41:505
111391150,0ptp4l0-21swapper/508:20:055
111391150,0ptp4l0-21swapper/507:18:235
111391150,0ptp4l0-21swapper/507:13:435
111391150,0ptp4l0-21swapper/408:05:114
111391150,0ptp4l0-21swapper/407:45:534
111391150,0ptp4l0-21swapper/309:01:463
111391150,0ptp4l0-21swapper/308:29:543
111391150,0ptp4l0-21swapper/208:55:352
111391150,0ptp4l0-21swapper/208:38:232
111391150,0ptp4l0-21swapper/208:17:152
111391150,0ptp4l0-21swapper/208:06:132
111391150,0ptp4l0-21swapper/208:00:082
111391150,0ptp4l0-21swapper/207:48:382
111391150,0ptp4l0-21swapper/109:05:081
111391150,0ptp4l0-21swapper/107:36:431
111391150,0ptp4l0-21swapper/008:10:040
111391150,0ptp4l0-21swapper/007:50:150
195422140,0sleep30-21swapper/312:25:353
111391140,0ptp4l0-21swapper/709:45:567
111391140,0ptp4l0-21swapper/709:01:447
111391140,0ptp4l0-21swapper/708:29:537
111391140,0ptp4l0-21swapper/611:44:136
111391140,0ptp4l0-21swapper/608:38:216
111391140,0ptp4l0-21swapper/607:48:386
111391140,0ptp4l0-21swapper/308:16:373
111391140,0ptp4l0-21swapper/307:45:413
111391140,0ptp4l0-21swapper/209:40:002
111391140,0ptp4l0-21swapper/209:34:312
111391140,0ptp4l0-21swapper/209:05:532
111391140,0ptp4l0-21swapper/207:51:112
111391140,0ptp4l0-21swapper/207:19:492
27048991311,1cyclictest6378-21munin-run12:10:005
142302120,0sleep70-21swapper/712:20:117
2706399110,10cyclictest0-21swapper/712:33:137
2705599110,10cyclictest0-21swapper/612:22:366
2705599110,10cyclictest0-21swapper/611:27:266
2702699116,4cyclictest0-21swapper/211:12:062
2702699114,2cyclictest26798-21sh12:35:322
2702699113,2cyclictest18327-21cat12:25:142
2702699113,2cyclictest1068-21runrttasks08:20:512
2702699110,10cyclictest0-21swapper/209:45:112
2706399109,0cyclictest0-21swapper/711:46:527
2706399109,0cyclictest0-21swapper/710:46:037
2706399109,0cyclictest0-21swapper/709:52:087
2706399109,0cyclictest0-21swapper/709:22:077
2706399100,9cyclictest0-21swapper/712:13:447
2706399100,9cyclictest0-21swapper/712:01:477
2706399100,9cyclictest0-21swapper/711:52:507
2706399100,9cyclictest0-21swapper/711:52:507
2706399100,9cyclictest0-21swapper/711:29:447
2706399100,9cyclictest0-21swapper/711:14:097
2706399100,9cyclictest0-21swapper/710:39:557
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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