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2026-08-27 - 18:36

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 Aug 27, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391670,6ptp4l0-21swapper/107:09:071
111391630,5ptp4l0-21swapper/007:05:060
94512600,0sleep50-21swapper/511:05:005
257425949,6sleep40-21swapper/407:06:474
250425947,7sleep70-21swapper/707:05:537
111391590,5ptp4l0-21swapper/507:09:365
137872560,0sleep20-21swapper/207:30:152
137872560,0sleep20-21swapper/207:30:142
275625333,6sleep60-21swapper/607:08:496
255425140,7sleep20-21swapper/207:06:292
251824837,7sleep30-21swapper/307:06:053
111391340,0ptp4l0-21swapper/012:00:480
111391330,0ptp4l0-21swapper/211:45:172
111391320,0ptp4l0-21swapper/111:34:451
111391320,0ptp4l0-21swapper/012:30:130
111391320,0ptp4l0-21swapper/011:49:090
111391310,0ptp4l0-21swapper/007:50:130
111391300,2ptp4l0-21swapper/009:00:180
111391300,0ptp4l0-21swapper/112:11:031
111391300,0ptp4l0-21swapper/110:20:151
111391300,0ptp4l0-21swapper/011:33:320
111391300,0ptp4l0-21swapper/011:05:550
314599295,12cyclictest0-21swapper/408:50:154
111391290,0ptp4l0-21swapper/509:14:465
111391290,0ptp4l0-21swapper/110:32:051
111391290,0ptp4l0-21swapper/012:24:160
111391290,0ptp4l0-21swapper/012:10:440
111391290,0ptp4l0-21swapper/012:05:190
111391290,0ptp4l0-21swapper/011:25:070
111391290,0ptp4l0-21swapper/010:51:540
111391290,0ptp4l0-21swapper/010:40:140
111391290,0ptp4l0-21swapper/010:18:410
111391290,0ptp4l0-21swapper/010:18:410
111391290,0ptp4l0-21swapper/009:58:190
111391290,0ptp4l0-21swapper/009:50:160
111391290,0ptp4l0-21swapper/009:27:150
111391290,0ptp4l0-21swapper/009:17:020
111391280,0ptp4l0-21swapper/510:55:525
111391280,0ptp4l0-21swapper/510:39:305
111391280,0ptp4l0-21swapper/510:15:135
111391280,0ptp4l0-21swapper/510:15:135
111391280,0ptp4l0-21swapper/211:37:382
111391280,0ptp4l0-21swapper/111:47:531
111391280,0ptp4l0-21swapper/109:12:351
111391280,0ptp4l0-21swapper/011:39:380
111391270,3ptp4l0-21swapper/509:37:295
111391270,0ptp4l0-21swapper/508:40:125
111391270,0ptp4l0-21swapper/411:24:524
111391270,0ptp4l0-21swapper/409:52:284
111391270,0ptp4l0-21swapper/012:25:050
111391270,0ptp4l0-21swapper/010:29:140
111391270,0ptp4l0-21swapper/010:23:340
111391270,0ptp4l0-21swapper/009:20:500
111391260,0ptp4l0-21swapper/509:44:045
111391260,0ptp4l0-21swapper/011:43:230
111391260,0ptp4l0-21swapper/009:48:330
111391260,0ptp4l0-21swapper/009:44:230
111391260,0ptp4l0-21swapper/009:33:160
111391250,1ptp4l4332-21irqstats08:20:151
111391250,1ptp4l0-21swapper/010:37:350
111391250,0ptp4l0-21swapper/512:00:075
111391250,0ptp4l0-21swapper/511:55:125
111391250,0ptp4l0-21swapper/509:58:065
111391250,0ptp4l0-21swapper/509:27:105
111391250,0ptp4l0-21swapper/508:20:115
111391250,0ptp4l0-21swapper/508:12:085
111391250,0ptp4l0-21swapper/412:38:254
111391250,0ptp4l0-21swapper/408:00:164
111391250,0ptp4l0-21swapper/407:40:114
111391250,0ptp4l0-21swapper/110:27:291
111391250,0ptp4l0-21swapper/110:09:451
111391250,0ptp4l0-21swapper/109:16:131
111391250,0ptp4l0-21swapper/012:39:310
111391250,0ptp4l0-21swapper/011:58:030
111391250,0ptp4l0-21swapper/011:01:570
111391250,0ptp4l0-21swapper/010:30:110
111391250,0ptp4l0-21swapper/008:31:300
61572240,0sleep40-21swapper/408:25:114
111391240,3ptp4l321ktimersoftd/209:32:162
111391240,3ptp4l0-21swapper/507:40:315
111391240,2ptp4l6746-21basename11:00:134
111391240,1ptp4l9-21ksoftirqd/010:49:090
111391240,1ptp4l8029-21latency_hist08:30:000
111391240,1ptp4l57-21ksoftirqd/512:10:115
111391240,1ptp4l4335-21cpu12:30:124
111391240,1ptp4l32464-21latency10:50:154
111391240,1ptp4l19849-21sed11:19:595
111391240,1ptp4l1801-21pgrep11:40:114
111391240,1ptp4l17161-21vmstat09:40:204
111391240,1ptp4l15647-21ps08:45:150
111391240,1ptp4l12313-21df11:55:121
111391240,1ptp4l12089-21kworker/u16:109:35:011
111391240,0ptp4l26225-21diskmemload10:22:575
111391240,0ptp4l0-21swapper/612:13:436
111391240,0ptp4l0-21swapper/512:25:135
111391240,0ptp4l0-21swapper/510:31:595
111391240,0ptp4l0-21swapper/507:55:155
111391240,0ptp4l0-21swapper/411:59:184
111391240,0ptp4l0-21swapper/411:47:174
111391240,0ptp4l0-21swapper/411:30:144
111391240,0ptp4l0-21swapper/411:19:574
111391240,0ptp4l0-21swapper/411:13:064
111391240,0ptp4l0-21swapper/410:45:144
111391240,0ptp4l0-21swapper/410:14:514
111391240,0ptp4l0-21swapper/410:14:514
111391240,0ptp4l0-21swapper/409:56:154
111391240,0ptp4l0-21swapper/409:15:144
111391240,0ptp4l0-21swapper/407:15:204
111391240,0ptp4l0-21swapper/212:38:462
111391240,0ptp4l0-21swapper/211:56:002
111391240,0ptp4l0-21swapper/209:07:452
111391240,0ptp4l0-21swapper/111:35:151
111391240,0ptp4l0-21swapper/111:17:101
111391240,0ptp4l0-21swapper/110:35:201
111391240,0ptp4l0-21swapper/109:47:431
111391240,0ptp4l0-21swapper/011:11:480
111391240,0ptp4l0-21swapper/010:05:190
111391240,0ptp4l0-21swapper/010:01:170
111391240,0ptp4l0-21swapper/009:35:190
111391240,0ptp4l0-21swapper/007:40:250
111391240,0ptp4l0-21swapper/007:15:040
111391240,0ptp4l0-21swapper/007:10:110
111391230,1ptp4l6059-21grep11:45:186
111391230,1ptp4l3600-21latency_hist08:20:015
111391230,1ptp4l13374-21diskstats07:30:121
111391230,1ptp4l13374-21diskstats07:30:111
111391230,0ptp4l26225-21diskmemload10:40:094
111391230,0ptp4l0-21swapper/711:15:167
111391230,0ptp4l0-21swapper/607:20:146
111391230,0ptp4l0-21swapper/512:19:055
111391230,0ptp4l0-21swapper/510:12:435
111391230,0ptp4l0-21swapper/510:12:425
111391230,0ptp4l0-21swapper/509:15:525
111391230,0ptp4l0-21swapper/508:45:005
111391230,0ptp4l0-21swapper/412:20:174
111391230,0ptp4l0-21swapper/412:14:134
111391230,0ptp4l0-21swapper/412:05:194
111391230,0ptp4l0-21swapper/411:50:174
111391230,0ptp4l0-21swapper/411:25:164
111391230,0ptp4l0-21swapper/410:55:134
111391230,0ptp4l0-21swapper/410:30:164
111391230,0ptp4l0-21swapper/410:25:114
111391230,0ptp4l0-21swapper/410:20:134
111391230,0ptp4l0-21swapper/410:05:174
111391230,0ptp4l0-21swapper/410:00:194
111391230,0ptp4l0-21swapper/409:35:134
111391230,0ptp4l0-21swapper/409:30:194
111391230,0ptp4l0-21swapper/409:20:124
111391230,0ptp4l0-21swapper/409:10:134
111391230,0ptp4l0-21swapper/408:55:164
111391230,0ptp4l0-21swapper/408:45:124
111391230,0ptp4l0-21swapper/408:15:234
111391230,0ptp4l0-21swapper/407:55:114
111391230,0ptp4l0-21swapper/407:50:134
111391230,0ptp4l0-21swapper/407:45:184
111391230,0ptp4l0-21swapper/407:35:144
111391230,0ptp4l0-21swapper/407:35:144
111391230,0ptp4l0-21swapper/407:25:204
111391230,0ptp4l0-21swapper/407:10:174
111391230,0ptp4l0-21swapper/311:15:193
111391230,0ptp4l0-21swapper/212:25:182
111391230,0ptp4l0-21swapper/211:05:142
111391230,0ptp4l0-21swapper/112:35:391
111391230,0ptp4l0-21swapper/112:32:121
111391230,0ptp4l0-21swapper/112:25:111
111391230,0ptp4l0-21swapper/112:15:211
111391230,0ptp4l0-21swapper/112:00:131
111391230,0ptp4l0-21swapper/111:50:201
111391230,0ptp4l0-21swapper/111:14:531
111391230,0ptp4l0-21swapper/110:15:191
111391230,0ptp4l0-21swapper/110:15:191
111391230,0ptp4l0-21swapper/109:52:561
111391230,0ptp4l0-21swapper/109:23:331
111391230,0ptp4l0-21swapper/108:10:081
111391230,0ptp4l0-21swapper/108:00:121
111391230,0ptp4l0-21swapper/011:50:160
111391230,0ptp4l0-21swapper/011:20:120
111391230,0ptp4l0-21swapper/010:55:140
111391230,0ptp4l0-21swapper/009:10:120
111391230,0ptp4l0-21swapper/008:55:170
111391230,0ptp4l0-21swapper/008:40:160
111391230,0ptp4l0-21swapper/008:35:120
111391230,0ptp4l0-21swapper/008:19:300
111391230,0ptp4l0-21swapper/008:10:140
111391230,0ptp4l0-21swapper/008:00:150
111391230,0ptp4l0-21swapper/007:55:130
111391230,0ptp4l0-21swapper/007:25:120
111391220,0ptp4l0-21swapper/707:12:127
111391220,0ptp4l0-21swapper/612:38:496
111391220,0ptp4l0-21swapper/611:37:376
111391220,0ptp4l0-21swapper/609:40:436
111391220,0ptp4l0-21swapper/609:10:356
111391220,0ptp4l0-21swapper/511:50:235
111391220,0ptp4l0-21swapper/511:47:115
111391220,0ptp4l0-21swapper/511:44:555
111391220,0ptp4l0-21swapper/511:35:125
111391220,0ptp4l0-21swapper/511:23:115
111391220,0ptp4l0-21swapper/510:49:375
111391220,0ptp4l0-21swapper/510:27:505
111391220,0ptp4l0-21swapper/509:30:145
111391220,0ptp4l0-21swapper/509:24:335
111391220,0ptp4l0-21swapper/509:05:165
111391220,0ptp4l0-21swapper/507:35:195
111391220,0ptp4l0-21swapper/507:35:185
111391220,0ptp4l0-21swapper/507:20:015
111391220,0ptp4l0-21swapper/412:25:014
111391220,0ptp4l0-21swapper/412:00:164
111391220,0ptp4l0-21swapper/411:35:524
111391220,0ptp4l0-21swapper/411:05:524
111391220,0ptp4l0-21swapper/410:36:484
111391220,0ptp4l0-21swapper/410:18:144
111391220,0ptp4l0-21swapper/410:18:134
111391220,0ptp4l0-21swapper/409:45:184
111391220,0ptp4l0-21swapper/409:25:154
111391220,0ptp4l0-21swapper/409:00:154
111391220,0ptp4l0-21swapper/408:40:184
111391220,0ptp4l0-21swapper/408:30:114
111391220,0ptp4l0-21swapper/408:10:104
111391220,0ptp4l0-21swapper/407:20:124
111391220,0ptp4l0-21swapper/307:38:303
111391220,0ptp4l0-21swapper/307:38:293
111391220,0ptp4l0-21swapper/212:34:302
111391220,0ptp4l0-21swapper/212:10:352
111391220,0ptp4l0-21swapper/207:20:142
111391220,0ptp4l0-21swapper/112:22:121
111391220,0ptp4l0-21swapper/112:06:511
111391220,0ptp4l0-21swapper/111:42:531
111391220,0ptp4l0-21swapper/111:26:111
111391220,0ptp4l0-21swapper/111:06:361
111391220,0ptp4l0-21swapper/111:02:131
111391220,0ptp4l0-21swapper/110:49:051
111391220,0ptp4l0-21swapper/110:41:581
111391220,0ptp4l0-21swapper/110:13:191
111391220,0ptp4l0-21swapper/110:13:191
111391220,0ptp4l0-21swapper/110:00:151
111391220,0ptp4l0-21swapper/109:30:141
111391220,0ptp4l0-21swapper/109:26:461
111391220,0ptp4l0-21swapper/108:52:041
111391220,0ptp4l0-21swapper/108:25:191
111391220,0ptp4l0-21swapper/108:15:151
111391220,0ptp4l0-21swapper/107:55:161
111391220,0ptp4l0-21swapper/107:50:281
111391220,0ptp4l0-21swapper/107:35:211
111391220,0ptp4l0-21swapper/107:35:201
111391220,0ptp4l0-21swapper/012:15:050
111391220,0ptp4l0-21swapper/011:15:210
111391220,0ptp4l0-21swapper/010:10:180
111391220,0ptp4l0-21swapper/010:10:170
111391220,0ptp4l0-21swapper/008:05:120
111391220,0ptp4l0-21swapper/007:50:000
111391220,0ptp4l0-21swapper/007:35:170
111391220,0ptp4l0-21swapper/007:35:160
111391220,0ptp4l0-21swapper/007:30:010
111391220,0ptp4l0-21swapper/007:30:000
111391220,0ptp4l0-21swapper/007:20:110
311399218,1cyclictest0-21swapper/008:50:150
111391210,0ptp4l0-21swapper/711:48:097
111391210,0ptp4l0-21swapper/612:34:386
111391210,0ptp4l0-21swapper/611:56:026
111391210,0ptp4l0-21swapper/610:12:116
111391210,0ptp4l0-21swapper/610:12:106
111391210,0ptp4l0-21swapper/610:06:416
111391210,0ptp4l0-21swapper/512:37:135
111391210,0ptp4l0-21swapper/512:20:485
111391210,0ptp4l0-21swapper/511:11:145
111391210,0ptp4l0-21swapper/511:07:115
111391210,0ptp4l0-21swapper/510:09:365
111391210,0ptp4l0-21swapper/510:02:275
111391210,0ptp4l0-21swapper/509:53:075
111391210,0ptp4l0-21swapper/509:47:445
111391210,0ptp4l0-21swapper/508:35:105
111391210,0ptp4l0-21swapper/508:09:145
111391210,0ptp4l0-21swapper/508:00:125
111391210,0ptp4l0-21swapper/507:49:255
111391210,0ptp4l0-21swapper/507:30:135
111391210,0ptp4l0-21swapper/507:30:135
111391210,0ptp4l0-21swapper/507:17:075
111391210,0ptp4l0-21swapper/412:16:364
111391210,0ptp4l0-21swapper/408:35:124
111391210,0ptp4l0-21swapper/408:05:114
111391210,0ptp4l0-21swapper/308:17:313
111391210,0ptp4l0-21swapper/307:57:273
111391210,0ptp4l0-21swapper/212:24:482
111391210,0ptp4l0-21swapper/212:17:262
111391210,0ptp4l0-21swapper/209:40:482
111391210,0ptp4l0-21swapper/209:38:442
111391210,0ptp4l0-21swapper/209:10:312
111391210,0ptp4l0-21swapper/110:55:051
111391210,0ptp4l0-21swapper/110:53:311
111391210,0ptp4l0-21swapper/109:42:401
111391210,0ptp4l0-21swapper/109:05:151
111391200,0ptp4l4299-21ssh11:43:552
111391200,0ptp4l0-21swapper/710:45:317
111391200,0ptp4l0-21swapper/612:24:236
111391200,0ptp4l0-21swapper/611:26:566
111391200,0ptp4l0-21swapper/609:33:276
111391200,0ptp4l0-21swapper/609:28:256
111391200,0ptp4l0-21swapper/512:30:105
111391200,0ptp4l0-21swapper/512:06:465
111391200,0ptp4l0-21swapper/511:34:565
111391200,0ptp4l0-21swapper/511:26:145
111391200,0ptp4l0-21swapper/510:51:345
111391200,0ptp4l0-21swapper/510:42:465
111391200,0ptp4l0-21swapper/508:52:425
111391200,0ptp4l0-21swapper/508:25:175
111391200,0ptp4l0-21swapper/507:10:505
111391200,0ptp4l0-21swapper/409:08:084
111391200,0ptp4l0-21swapper/408:24:564
111391200,0ptp4l0-21swapper/211:27:022
111391200,0ptp4l0-21swapper/109:57:551
111391200,0ptp4l0-21swapper/109:04:061
111391200,0ptp4l0-21swapper/108:47:131
111391200,0ptp4l0-21swapper/108:40:211
111391200,0ptp4l0-21swapper/108:37:121
111391190,0ptp4l0-21swapper/612:25:216
111391190,0ptp4l0-21swapper/611:09:376
111391190,0ptp4l0-21swapper/611:00:056
111391190,0ptp4l0-21swapper/608:06:086
111391190,0ptp4l0-21swapper/211:50:022
111391190,0ptp4l0-21swapper/210:11:582
111391190,0ptp4l0-21swapper/210:11:572
111391190,0ptp4l0-21swapper/210:06:472
111391190,0ptp4l0-21swapper/210:01:342
111391190,0ptp4l0-21swapper/111:20:521
111391190,0ptp4l0-21swapper/107:44:531
111391190,0ptp4l0-21swapper/107:27:121
111391190,0ptp4l0-21swapper/107:14:141
111391190,0ptp4l0-21swapper/009:06:130
111391180,0ptp4l0-21swapper/612:17:346
111391180,0ptp4l0-21swapper/612:04:496
111391180,0ptp4l0-21swapper/610:23:306
111391180,0ptp4l0-21swapper/609:38:446
111391180,0ptp4l0-21swapper/311:48:153
111391170,0ptp4l0-21swapper/611:53:556
111391170,0ptp4l0-21swapper/611:43:586
111391170,0ptp4l0-21swapper/211:03:242
111391170,0ptp4l0-21swapper/209:28:272
111391170,0ptp4l0-21swapper/107:18:331
111391170,0ptp4l0-21swapper/008:22:590
111391160,0ptp4l0-21swapper/707:37:587
111391160,0ptp4l0-21swapper/707:37:577
111391160,0ptp4l0-21swapper/509:03:365
111391160,0ptp4l0-21swapper/507:51:515
111391160,0ptp4l0-21swapper/407:33:234
111391160,0ptp4l0-21swapper/407:33:224
111391160,0ptp4l0-21swapper/310:45:293
111391160,0ptp4l0-21swapper/210:59:572
111391160,0ptp4l0-21swapper/210:23:272
111391160,0ptp4l0-21swapper/207:52:452
111391160,0ptp4l0-21swapper/108:31:391
111391160,0ptp4l0-21swapper/108:05:281
111391160,0ptp4l0-21swapper/107:22:021
111391150,1ptp4l131rcu_sched08:49:592
111391150,0ptp4l0-21swapper/708:17:387
111391150,0ptp4l0-21swapper/707:57:057
111391150,0ptp4l0-21swapper/610:01:366
111391150,0ptp4l0-21swapper/609:05:346
111391150,0ptp4l0-21swapper/608:26:396
111391150,0ptp4l0-21swapper/607:57:596
111391150,0ptp4l0-21swapper/607:52:476
111391150,0ptp4l0-21swapper/607:43:206
111391150,0ptp4l0-21swapper/508:57:145
111391150,0ptp4l0-21swapper/507:26:515
111391150,0ptp4l0-21swapper/307:11:353
111391150,0ptp4l0-21swapper/212:04:482
111391150,0ptp4l0-21swapper/211:19:482
111391150,0ptp4l0-21swapper/208:26:422
111391150,0ptp4l0-21swapper/208:06:062
111391150,0ptp4l0-21swapper/207:58:082
111391150,0ptp4l0-21swapper/108:55:301
111391150,0ptp4l0-21swapper/107:45:371
111391140,0ptp4l0-21swapper/610:59:586
111391140,0ptp4l0-21swapper/607:16:466
111391140,0ptp4l0-21swapper/508:32:105
111391140,0ptp4l0-21swapper/207:42:242
111391130,0ptp4l18354-21/usr/sbin/munin08:50:166
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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