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2026-04-09 - 17:26

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 Thu Apr 09, 2026 12:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391750,30ptp4l0-21swapper/107:08:281
284832670,0sleep5561ktimersoftd/511:59:505
1285926342,6sleep70-21swapper/707:08:367
111391610,4ptp4l0-21swapper/407:05:534
1266125949,6sleep20-21swapper/207:05:592
1284625433,7sleep30-21swapper/307:08:243
74782530,0sleep60-21swapper/610:44:456
111391520,5ptp4l0-21swapper/507:08:375
111391510,5ptp4l0-21swapper/007:07:220
1264724837,7sleep60-21swapper/607:05:466
111391340,1ptp4l25524-21tr11:55:117
111391320,0ptp4l0-21swapper/409:05:184
111391320,0ptp4l0-21swapper/009:31:590
111391320,0ptp4l0-21swapper/009:31:580
111391310,2ptp4l481ktimersoftd/408:20:134
111391310,0ptp4l0-21swapper/711:13:597
111391300,7ptp4l0-21swapper/510:33:245
111391300,0ptp4l0-21swapper/512:35:085
111391300,0ptp4l0-21swapper/412:33:574
111391300,0ptp4l0-21swapper/411:45:124
111391300,0ptp4l0-21swapper/110:00:201
111391300,0ptp4l0-21swapper/009:15:190
111391290,3ptp4l0-21swapper/411:04:224
111391290,0ptp4l0-21swapper/409:18:494
111391290,0ptp4l0-21swapper/009:55:070
111391290,0ptp4l0-21swapper/007:10:160
111391280,2ptp4l0-21swapper/410:09:404
111391280,0ptp4l0-21swapper/410:26:534
111391280,0ptp4l0-21swapper/410:14:484
111391280,0ptp4l0-21swapper/409:30:324
111391280,0ptp4l0-21swapper/409:30:324
111391280,0ptp4l0-21swapper/010:27:210
111391280,0ptp4l0-21swapper/010:04:560
111391280,0ptp4l0-21swapper/009:48:500
111391270,3ptp4l0-21swapper/311:51:413
111391270,0ptp4l0-21swapper/711:24:547
111391270,0ptp4l0-21swapper/412:10:044
111391270,0ptp4l0-21swapper/412:10:044
111391270,0ptp4l0-21swapper/412:00:484
111391270,0ptp4l0-21swapper/411:50:284
111391270,0ptp4l0-21swapper/410:02:274
111391270,0ptp4l0-21swapper/408:15:174
111391270,0ptp4l0-21swapper/109:45:211
111391270,0ptp4l0-21swapper/012:34:520
111391270,0ptp4l0-21swapper/012:22:280
111391270,0ptp4l0-21swapper/011:57:030
111391270,0ptp4l0-21swapper/011:47:470
111391270,0ptp4l0-21swapper/011:09:590
111391270,0ptp4l0-21swapper/010:16:000
111391260,4ptp4l0-21swapper/011:31:420
111391260,0ptp4l0-21swapper/711:52:437
111391260,0ptp4l0-21swapper/412:20:494
111391260,0ptp4l0-21swapper/412:19:574
111391260,0ptp4l0-21swapper/411:56:314
111391260,0ptp4l0-21swapper/411:40:214
111391260,0ptp4l0-21swapper/410:42:344
111391260,0ptp4l0-21swapper/409:25:334
111391260,0ptp4l0-21swapper/211:28:272
111391260,0ptp4l0-21swapper/112:25:461
111391260,0ptp4l0-21swapper/110:59:481
111391260,0ptp4l0-21swapper/012:28:200
111391260,0ptp4l0-21swapper/011:24:100
111391260,0ptp4l0-21swapper/011:12:420
111391260,0ptp4l0-21swapper/010:36:400
111391260,0ptp4l0-21swapper/010:08:460
111391250,1ptp4l515-21systemd-journal09:10:005
111391250,1ptp4l27507-21smartctl09:40:180
111391250,0ptp4l0-21swapper/611:28:296
111391250,0ptp4l0-21swapper/508:40:115
111391250,0ptp4l0-21swapper/507:40:135
111391250,0ptp4l0-21swapper/411:35:204
111391250,0ptp4l0-21swapper/411:23:364
111391250,0ptp4l0-21swapper/411:00:004
111391250,0ptp4l0-21swapper/410:51:254
111391250,0ptp4l0-21swapper/409:55:314
111391250,0ptp4l0-21swapper/409:47:094
111391250,0ptp4l0-21swapper/408:55:004
111391250,0ptp4l0-21swapper/407:50:164
111391250,0ptp4l0-21swapper/011:00:200
111391250,0ptp4l0-21swapper/010:48:500
111391250,0ptp4l0-21swapper/010:40:120
111391250,0ptp4l0-21swapper/010:30:010
111391250,0ptp4l0-21swapper/010:22:120
111391250,0ptp4l0-21swapper/009:52:430
111391250,0ptp4l0-21swapper/009:38:200
111391250,0ptp4l0-21swapper/009:38:200
111391250,0ptp4l0-21swapper/009:12:440
111391240,2ptp4l0-21swapper/008:50:220
111391240,1ptp4l6721-21latency_hist12:15:000
111391240,1ptp4l22231-21df_inode11:50:111
111391240,1ptp4l21449-21memory08:35:160
111391240,0ptp4l0-21swapper/511:30:165
111391240,0ptp4l0-21swapper/411:25:194
111391240,0ptp4l0-21swapper/411:16:524
111391240,0ptp4l0-21swapper/411:10:124
111391240,0ptp4l0-21swapper/410:45:204
111391240,0ptp4l0-21swapper/311:25:083
111391240,0ptp4l0-21swapper/310:25:013
111391240,0ptp4l0-21swapper/207:30:102
111391240,0ptp4l0-21swapper/109:27:161
111391240,0ptp4l0-21swapper/011:40:120
111391240,0ptp4l0-21swapper/010:50:120
111391240,0ptp4l0-21swapper/009:05:170
111391240,0ptp4l0-21swapper/009:00:100
111391240,0ptp4l0-21swapper/008:14:240
111391230,1ptp4l13548-21ssh12:23:571
111391230,0ptp4l0-21swapper/710:25:027
111391230,0ptp4l0-21swapper/709:44:587
111391230,0ptp4l0-21swapper/708:50:007
111391230,0ptp4l0-21swapper/707:45:137
111391230,0ptp4l0-21swapper/609:38:036
111391230,0ptp4l0-21swapper/609:38:026
111391230,0ptp4l0-21swapper/512:27:465
111391230,0ptp4l0-21swapper/512:05:105
111391230,0ptp4l0-21swapper/511:50:115
111391230,0ptp4l0-21swapper/510:39:275
111391230,0ptp4l0-21swapper/509:51:565
111391230,0ptp4l0-21swapper/509:35:145
111391230,0ptp4l0-21swapper/509:35:145
111391230,0ptp4l0-21swapper/508:10:245
111391230,0ptp4l0-21swapper/412:25:134
111391230,0ptp4l0-21swapper/411:33:114
111391230,0ptp4l0-21swapper/411:05:214
111391230,0ptp4l0-21swapper/410:38:204
111391230,0ptp4l0-21swapper/410:30:194
111391230,0ptp4l0-21swapper/410:20:144
111391230,0ptp4l0-21swapper/410:15:164
111391230,0ptp4l0-21swapper/409:50:084
111391230,0ptp4l0-21swapper/409:40:174
111391230,0ptp4l0-21swapper/409:20:174
111391230,0ptp4l0-21swapper/409:11:394
111391230,0ptp4l0-21swapper/409:00:114
111391230,0ptp4l0-21swapper/408:55:174
111391230,0ptp4l0-21swapper/408:45:184
111391230,0ptp4l0-21swapper/408:42:314
111391230,0ptp4l0-21swapper/408:25:124
111391230,0ptp4l0-21swapper/408:05:134
111391230,0ptp4l0-21swapper/408:00:184
111391230,0ptp4l0-21swapper/407:55:174
111391230,0ptp4l0-21swapper/407:35:134
111391230,0ptp4l0-21swapper/407:25:134
111391230,0ptp4l0-21swapper/407:20:144
111391230,0ptp4l0-21swapper/407:15:164
111391230,0ptp4l0-21swapper/309:45:003
111391230,0ptp4l0-21swapper/307:45:163
111391230,0ptp4l0-21swapper/112:05:121
111391230,0ptp4l0-21swapper/111:30:111
111391230,0ptp4l0-21swapper/111:15:111
111391230,0ptp4l0-21swapper/110:40:551
111391230,0ptp4l0-21swapper/110:30:141
111391230,0ptp4l0-21swapper/109:44:021
111391230,0ptp4l0-21swapper/109:35:161
111391230,0ptp4l0-21swapper/109:35:161
111391230,0ptp4l0-21swapper/109:10:181
111391230,0ptp4l0-21swapper/012:10:170
111391230,0ptp4l0-21swapper/012:00:110
111391230,0ptp4l0-21swapper/011:50:190
111391230,0ptp4l0-21swapper/011:35:120
111391230,0ptp4l0-21swapper/011:16:170
111391230,0ptp4l0-21swapper/010:55:100
111391230,0ptp4l0-21swapper/010:10:110
111391230,0ptp4l0-21swapper/009:25:120
111391230,0ptp4l0-21swapper/009:20:210
111391230,0ptp4l0-21swapper/008:55:550
111391230,0ptp4l0-21swapper/008:20:120
111391230,0ptp4l0-21swapper/008:15:120
111391230,0ptp4l0-21swapper/007:35:180
111391230,0ptp4l0-21swapper/007:20:180
111391220,0ptp4l4002-21diskmemload09:11:032
111391220,0ptp4l21766-21ssh09:33:191
111391220,0ptp4l21766-21ssh09:33:191
111391220,0ptp4l0-21swapper/712:37:577
111391220,0ptp4l0-21swapper/711:25:117
111391220,0ptp4l0-21swapper/710:24:527
111391220,0ptp4l0-21swapper/612:12:556
111391220,0ptp4l0-21swapper/612:12:556
111391220,0ptp4l0-21swapper/611:43:156
111391220,0ptp4l0-21swapper/610:56:466
111391220,0ptp4l0-21swapper/610:49:346
111391220,0ptp4l0-21swapper/609:33:546
111391220,0ptp4l0-21swapper/609:33:546
111391220,0ptp4l0-21swapper/607:30:156
111391220,0ptp4l0-21swapper/512:33:035
111391220,0ptp4l0-21swapper/512:01:465
111391220,0ptp4l0-21swapper/511:48:075
111391220,0ptp4l0-21swapper/511:42:555
111391220,0ptp4l0-21swapper/511:38:545
111391220,0ptp4l0-21swapper/511:15:115
111391220,0ptp4l0-21swapper/511:01:325
111391220,0ptp4l0-21swapper/510:54:065
111391220,0ptp4l0-21swapper/510:44:075
111391220,0ptp4l0-21swapper/510:28:005
111391220,0ptp4l0-21swapper/510:03:125
111391220,0ptp4l0-21swapper/509:45:135
111391220,0ptp4l0-21swapper/509:34:545
111391220,0ptp4l0-21swapper/509:34:535
111391220,0ptp4l0-21swapper/509:27:425
111391220,0ptp4l0-21swapper/509:20:505
111391220,0ptp4l0-21swapper/509:15:045
111391220,0ptp4l0-21swapper/509:10:125
111391220,0ptp4l0-21swapper/508:55:235
111391220,0ptp4l0-21swapper/412:35:214
111391220,0ptp4l0-21swapper/412:06:184
111391220,0ptp4l0-21swapper/409:36:084
111391220,0ptp4l0-21swapper/409:36:084
111391220,0ptp4l0-21swapper/408:35:014
111391220,0ptp4l0-21swapper/408:30:204
111391220,0ptp4l0-21swapper/407:40:154
111391220,0ptp4l0-21swapper/407:30:194
111391220,0ptp4l0-21swapper/312:37:583
111391220,0ptp4l0-21swapper/311:55:123
111391220,0ptp4l0-21swapper/311:14:083
111391220,0ptp4l0-21swapper/310:25:113
111391220,0ptp4l0-21swapper/212:29:362
111391220,0ptp4l0-21swapper/211:43:172
111391220,0ptp4l0-21swapper/210:55:062
111391220,0ptp4l0-21swapper/209:33:342
111391220,0ptp4l0-21swapper/209:33:332
111391220,0ptp4l0-21swapper/112:35:161
111391220,0ptp4l0-21swapper/112:03:461
111391220,0ptp4l0-21swapper/111:46:181
111391220,0ptp4l0-21swapper/111:40:581
111391220,0ptp4l0-21swapper/111:36:281
111391220,0ptp4l0-21swapper/111:20:001
111391220,0ptp4l0-21swapper/111:07:471
111391220,0ptp4l0-21swapper/111:01:361
111391220,0ptp4l0-21swapper/110:54:001
111391220,0ptp4l0-21swapper/110:48:291
111391220,0ptp4l0-21swapper/110:21:561
111391220,0ptp4l0-21swapper/110:07:541
111391220,0ptp4l0-21swapper/109:56:101
111391220,0ptp4l0-21swapper/109:51:231
111391220,0ptp4l0-21swapper/108:40:161
111391220,0ptp4l0-21swapper/108:09:421
111391220,0ptp4l0-21swapper/012:35:440
111391220,0ptp4l0-21swapper/012:15:120
111391220,0ptp4l0-21swapper/012:06:370
111391220,0ptp4l0-21swapper/011:25:170
111391220,0ptp4l0-21swapper/008:45:120
111391220,0ptp4l0-21swapper/008:40:150
111391220,0ptp4l0-21swapper/008:25:150
111391220,0ptp4l0-21swapper/008:05:140
111391220,0ptp4l0-21swapper/007:55:110
111391220,0ptp4l0-21swapper/007:50:140
111391220,0ptp4l0-21swapper/007:40:170
111391220,0ptp4l0-21swapper/007:25:090
111391220,0ptp4l0-21swapper/007:15:000
259892210,0sleep20-21swapper/211:10:122
111391210,0ptp4l0-21swapper/707:43:377
111391210,0ptp4l0-21swapper/611:37:206
111391210,0ptp4l0-21swapper/611:33:206
111391210,0ptp4l0-21swapper/608:43:426
111391210,0ptp4l0-21swapper/608:33:486
111391210,0ptp4l0-21swapper/511:28:165
111391210,0ptp4l0-21swapper/511:06:595
111391210,0ptp4l0-21swapper/510:55:405
111391210,0ptp4l0-21swapper/510:45:385
111391210,0ptp4l0-21swapper/510:24:005
111391210,0ptp4l0-21swapper/510:05:365
111391210,0ptp4l0-21swapper/509:43:155
111391210,0ptp4l0-21swapper/508:50:385
111391210,0ptp4l0-21swapper/508:39:185
111391210,0ptp4l0-21swapper/508:23:475
111391210,0ptp4l0-21swapper/508:15:475
111391210,0ptp4l0-21swapper/508:09:005
111391210,0ptp4l0-21swapper/408:10:144
111391210,0ptp4l0-21swapper/311:24:563
111391210,0ptp4l0-21swapper/308:50:003
111391210,0ptp4l0-21swapper/212:31:312
111391210,0ptp4l0-21swapper/209:27:542
111391210,0ptp4l0-21swapper/112:34:461
111391210,0ptp4l0-21swapper/111:29:401
111391210,0ptp4l0-21swapper/110:37:581
111391210,0ptp4l0-21swapper/108:55:211
111391210,0ptp4l0-21swapper/108:04:081
111391210,0ptp4l0-21swapper/107:32:381
111391210,0ptp4l0-21swapper/008:03:170
111391210,0ptp4l0-21swapper/007:30:370
111391200,0ptp4l0-21swapper/709:45:027
111391200,0ptp4l0-21swapper/707:56:247
111391200,0ptp4l0-21swapper/609:27:566
111391200,0ptp4l0-21swapper/609:11:056
111391200,0ptp4l0-21swapper/512:19:135
111391200,0ptp4l0-21swapper/509:56:065
111391200,0ptp4l0-21swapper/507:10:015
111391200,0ptp4l0-21swapper/407:10:184
111391200,0ptp4l0-21swapper/212:12:522
111391200,0ptp4l0-21swapper/212:12:512
111391200,0ptp4l0-21swapper/111:58:031
111391200,0ptp4l0-21swapper/110:27:581
111391200,0ptp4l0-21swapper/109:20:491
111391200,0ptp4l0-21swapper/109:16:121
111391200,0ptp4l0-21swapper/109:03:421
111391200,0ptp4l0-21swapper/108:23:431
111391200,0ptp4l0-21swapper/107:51:191
111391200,0ptp4l0-21swapper/107:22:381
111391200,0ptp4l0-21swapper/008:29:590
111391190,0ptp4l0-21swapper/709:07:427
111391190,0ptp4l0-21swapper/612:31:296
111391190,0ptp4l0-21swapper/610:11:166
111391190,0ptp4l0-21swapper/511:20:055
111391190,0ptp4l0-21swapper/511:10:515
111391190,0ptp4l0-21swapper/210:09:112
111391190,0ptp4l0-21swapper/209:38:052
111391190,0ptp4l0-21swapper/209:38:052
111391190,0ptp4l0-21swapper/208:33:542
111391190,0ptp4l0-21swapper/112:18:471
111391190,0ptp4l0-21swapper/110:16:551
111391190,0ptp4l0-21swapper/109:08:421
111391190,0ptp4l0-21swapper/108:29:551
111391190,0ptp4l0-21swapper/108:11:401
111391180,0ptp4l0-21swapper/612:29:356
111391180,0ptp4l0-21swapper/610:09:136
111391180,0ptp4l0-21swapper/507:23:405
111391180,0ptp4l0-21swapper/210:11:212
111391180,0ptp4l0-21swapper/112:10:421
111391180,0ptp4l0-21swapper/112:10:421
111391180,0ptp4l0-21swapper/007:46:450
111391170,0ptp4l0-21swapper/512:22:225
111391170,0ptp4l0-21swapper/210:49:362
111391170,0ptp4l0-21swapper/209:41:432
111391170,0ptp4l0-21swapper/111:10:511
111391170,0ptp4l0-21swapper/107:37:351
111391160,0ptp4l0-21swapper/509:03:055
111391160,0ptp4l0-21swapper/507:35:055
111391160,0ptp4l0-21swapper/507:32:135
111391160,0ptp4l0-21swapper/309:45:093
111391160,0ptp4l0-21swapper/211:37:182
111391160,0ptp4l0-21swapper/210:19:502
111391160,0ptp4l0-21swapper/110:12:291
111391160,0ptp4l0-21swapper/108:36:251
111391160,0ptp4l0-21swapper/108:17:271
111391160,0ptp4l0-21swapper/107:25:591
89402150,0sleep30-21swapper/312:16:073
111391150,0ptp4l0-21swapper/708:41:167
111391150,0ptp4l0-21swapper/609:41:416
111391150,0ptp4l0-21swapper/608:53:506
111391150,0ptp4l0-21swapper/607:58:286
111391150,0ptp4l0-21swapper/607:43:526
111391150,0ptp4l0-21swapper/510:18:315
111391150,0ptp4l0-21swapper/510:12:325
111391150,0ptp4l0-21swapper/508:46:175
111391150,0ptp4l0-21swapper/508:32:065
111391150,0ptp4l0-21swapper/508:25:335
111391150,0ptp4l0-21swapper/508:03:455
111391150,0ptp4l0-21swapper/507:50:535
111391150,0ptp4l0-21swapper/507:46:595
111391150,0ptp4l0-21swapper/507:25:485
111391150,0ptp4l0-21swapper/507:16:365
111391150,0ptp4l0-21swapper/407:45:544
111391150,0ptp4l0-21swapper/309:07:423
111391150,0ptp4l0-21swapper/308:41:183
111391150,0ptp4l0-21swapper/307:56:273
111391150,0ptp4l0-21swapper/307:42:513
111391150,0ptp4l0-21swapper/211:34:162
111391150,0ptp4l0-21swapper/208:44:342
111391150,0ptp4l0-21swapper/208:22:102
111391150,0ptp4l0-21swapper/208:19:502
111391150,0ptp4l0-21swapper/207:58:252
111391150,0ptp4l0-21swapper/207:43:512
111391150,0ptp4l0-21swapper/207:29:582
111391150,0ptp4l0-21swapper/207:12:322
111391150,0ptp4l0-21swapper/108:50:231
111391150,0ptp4l0-21swapper/108:45:391
111391150,0ptp4l0-21swapper/108:30:481
111391150,0ptp4l0-21swapper/107:46:591
111391150,0ptp4l0-21swapper/107:40:061
111391150,0ptp4l0-21swapper/107:16:141
111391150,0ptp4l0-21swapper/107:10:021
53272140,0sleep30-21swapper/312:10:293
53272140,0sleep30-21swapper/312:10:293
13279991411,2cyclictest3966-21munin-run10:40:006
111391140,0ptp4l0-21swapper/708:50:027
111391140,0ptp4l0-21swapper/609:04:066
111391140,0ptp4l0-21swapper/608:22:106
111391140,0ptp4l0-21swapper/608:19:506
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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