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2026-09-06 - 16:04

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 Sun Sep 06, 2026 12:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90452630,2sleep2212899cyclictest11:05:102
1881916339,7phc2sys0-21swapper/407:08:084
111391610,52ptp4l0-21swapper/007:08:480
149326050,6sleep20-21swapper/207:05:312
20392580,0sleep50-21swapper/510:07:555
111391570,5ptp4l0-21swapper/107:05:051
91592540,0sleep30-21swapper/310:18:183
178625341,7sleep70-21swapper/707:09:117
156825332,7sleep30-21swapper/307:06:273
152325139,7sleep60-21swapper/607:05:506
165224736,7sleep50-21swapper/507:07:345
111391370,2ptp4l3804-21sensors08:20:185
111391350,0ptp4l0-21swapper/408:50:004
111391330,0ptp4l0-21swapper/408:35:194
111391320,0ptp4l0-21swapper/411:21:494
111391310,0ptp4l0-21swapper/411:58:334
111391310,0ptp4l0-21swapper/009:40:550
111391300,0ptp4l0-21swapper/412:37:594
111391300,0ptp4l0-21swapper/411:36:454
111391300,0ptp4l0-21swapper/210:15:182
111391290,1ptp4l25254-21diskmemload09:56:131
111391290,0ptp4l0-21swapper/511:07:375
111391290,0ptp4l0-21swapper/509:35:155
111391290,0ptp4l0-21swapper/412:13:414
111391290,0ptp4l0-21swapper/410:10:454
111391290,0ptp4l0-21swapper/011:06:100
111391290,0ptp4l0-21swapper/009:34:380
111391290,0ptp4l0-21swapper/009:25:460
111391280,2ptp4l0-21swapper/410:15:014
111391280,1ptp4l5819-21fw_forwarded_lo11:00:144
111391280,0ptp4l0-21swapper/511:52:305
111391280,0ptp4l0-21swapper/411:25:294
111391280,0ptp4l0-21swapper/410:56:534
111391280,0ptp4l0-21swapper/410:23:084
111391280,0ptp4l0-21swapper/409:34:184
111391280,0ptp4l0-21swapper/409:23:434
111391280,0ptp4l0-21swapper/210:05:492
111391280,0ptp4l0-21swapper/011:47:490
111391280,0ptp4l0-21swapper/011:39:530
111391280,0ptp4l0-21swapper/011:29:360
111391270,1ptp4l27809-21ssh09:11:530
111391270,0ptp4l0-21swapper/412:06:194
111391270,0ptp4l0-21swapper/411:40:204
111391270,0ptp4l0-21swapper/411:30:544
111391270,0ptp4l0-21swapper/410:35:344
111391270,0ptp4l0-21swapper/410:31:354
111391270,0ptp4l0-21swapper/409:50:154
111391270,0ptp4l0-21swapper/409:19:204
111391270,0ptp4l0-21swapper/409:11:014
111391270,0ptp4l0-21swapper/111:17:191
111391270,0ptp4l0-21swapper/109:33:251
111391270,0ptp4l0-21swapper/012:20:520
111391270,0ptp4l0-21swapper/011:22:460
111391270,0ptp4l0-21swapper/011:15:030
111391270,0ptp4l0-21swapper/010:34:330
111391270,0ptp4l0-21swapper/010:13:100
111391270,0ptp4l0-21swapper/010:05:300
111391270,0ptp4l0-21swapper/010:01:020
111391260,0ptp4l0-21swapper/511:21:395
111391260,0ptp4l0-21swapper/509:56:185
111391260,0ptp4l0-21swapper/509:20:125
111391260,0ptp4l0-21swapper/411:12:304
111391260,0ptp4l0-21swapper/411:10:004
111391260,0ptp4l0-21swapper/408:10:154
111391260,0ptp4l0-21swapper/407:45:124
111391260,0ptp4l0-21swapper/212:34:282
111391260,0ptp4l0-21swapper/212:23:482
111391260,0ptp4l0-21swapper/110:47:311
111391260,0ptp4l0-21swapper/109:27:251
111391260,0ptp4l0-21swapper/107:56:581
111391260,0ptp4l0-21swapper/107:40:151
111391260,0ptp4l0-21swapper/012:33:230
111391260,0ptp4l0-21swapper/012:14:490
111391260,0ptp4l0-21swapper/010:50:160
111391260,0ptp4l0-21swapper/010:38:500
111391260,0ptp4l0-21swapper/009:48:140
111391260,0ptp4l0-21swapper/008:04:560
111391260,0ptp4l0-21swapper/007:10:150
111391250,1ptp4l16364-21latency_hist07:40:000
111391250,0ptp4l0-21swapper/512:30:165
111391250,0ptp4l0-21swapper/512:21:465
111391250,0ptp4l0-21swapper/510:33:285
111391250,0ptp4l0-21swapper/509:33:185
111391250,0ptp4l0-21swapper/508:55:225
111391250,0ptp4l0-21swapper/508:40:165
111391250,0ptp4l0-21swapper/508:30:165
111391250,0ptp4l0-21swapper/412:26:534
111391250,0ptp4l0-21swapper/412:01:484
111391250,0ptp4l0-21swapper/410:05:174
111391250,0ptp4l0-21swapper/409:44:414
111391250,0ptp4l0-21swapper/408:05:194
111391250,0ptp4l0-21swapper/310:55:123
111391250,0ptp4l0-21swapper/109:39:191
111391250,0ptp4l0-21swapper/012:02:160
111391250,0ptp4l0-21swapper/011:32:400
111391250,0ptp4l0-21swapper/011:13:250
111391240,2ptp4l0-21swapper/009:22:180
111391240,1ptp4l3881-21users07:10:195
111391240,1ptp4l24442-21ssh09:54:230
111391240,1ptp4l22753-21cat09:50:203
111391240,1ptp4l18749-21/usr/sbin/munin08:55:191
111391240,1ptp4l13053-21/usr/sbin/munin07:30:165
111391240,1ptp4l10654-21cat07:25:164
111391240,0ptp4l0-21swapper/710:55:117
111391240,0ptp4l0-21swapper/710:20:117
111391240,0ptp4l0-21swapper/607:35:186
111391240,0ptp4l0-21swapper/512:39:075
111391240,0ptp4l0-21swapper/511:40:405
111391240,0ptp4l0-21swapper/509:51:175
111391240,0ptp4l0-21swapper/509:47:325
111391240,0ptp4l0-21swapper/509:15:355
111391240,0ptp4l0-21swapper/508:15:125
111391240,0ptp4l0-21swapper/507:15:005
111391240,0ptp4l0-21swapper/412:32:284
111391240,0ptp4l0-21swapper/412:20:204
111391240,0ptp4l0-21swapper/412:15:184
111391240,0ptp4l0-21swapper/411:45:124
111391240,0ptp4l0-21swapper/410:45:104
111391240,0ptp4l0-21swapper/408:45:004
111391240,0ptp4l0-21swapper/408:00:164
111391240,0ptp4l0-21swapper/311:20:183
111391240,0ptp4l0-21swapper/212:35:202
111391240,0ptp4l0-21swapper/112:30:001
111391240,0ptp4l0-21swapper/112:05:191
111391240,0ptp4l0-21swapper/111:55:131
111391240,0ptp4l0-21swapper/111:49:091
111391240,0ptp4l0-21swapper/110:42:201
111391240,0ptp4l0-21swapper/110:00:161
111391240,0ptp4l0-21swapper/108:20:161
111391240,0ptp4l0-21swapper/107:35:121
111391240,0ptp4l0-21swapper/107:30:171
111391240,0ptp4l0-21swapper/107:15:011
111391240,0ptp4l0-21swapper/012:16:520
111391240,0ptp4l0-21swapper/012:05:110
111391240,0ptp4l0-21swapper/011:42:510
111391240,0ptp4l0-21swapper/010:25:110
111391240,0ptp4l0-21swapper/010:25:110
111391240,0ptp4l0-21swapper/009:16:370
111391240,0ptp4l0-21swapper/008:45:150
111391240,0ptp4l0-21swapper/008:05:110
111391230,1ptp4l17590-21sed08:50:190
111391230,0ptp4l0-21swapper/711:20:117
111391230,0ptp4l0-21swapper/709:50:197
111391230,0ptp4l0-21swapper/612:35:146
111391230,0ptp4l0-21swapper/610:24:316
111391230,0ptp4l0-21swapper/610:15:196
111391230,0ptp4l0-21swapper/610:05:506
111391230,0ptp4l0-21swapper/512:25:125
111391230,0ptp4l0-21swapper/512:05:195
111391230,0ptp4l0-21swapper/512:01:305
111391230,0ptp4l0-21swapper/511:55:085
111391230,0ptp4l0-21swapper/511:49:065
111391230,0ptp4l0-21swapper/511:35:165
111391230,0ptp4l0-21swapper/511:17:265
111391230,0ptp4l0-21swapper/510:45:195
111391230,0ptp4l0-21swapper/510:40:135
111391230,0ptp4l0-21swapper/510:35:165
111391230,0ptp4l0-21swapper/510:00:145
111391230,0ptp4l0-21swapper/509:25:125
111391230,0ptp4l0-21swapper/507:35:135
111391230,0ptp4l0-21swapper/507:20:145
111391230,0ptp4l0-21swapper/411:53:444
111391230,0ptp4l0-21swapper/411:15:124
111391230,0ptp4l0-21swapper/410:50:114
111391230,0ptp4l0-21swapper/410:01:324
111391230,0ptp4l0-21swapper/409:55:164
111391230,0ptp4l0-21swapper/409:46:434
111391230,0ptp4l0-21swapper/409:37:084
111391230,0ptp4l0-21swapper/409:05:124
111391230,0ptp4l0-21swapper/409:00:194
111391230,0ptp4l0-21swapper/408:50:124
111391230,0ptp4l0-21swapper/408:25:164
111391230,0ptp4l0-21swapper/407:50:144
111391230,0ptp4l0-21swapper/407:50:134
111391230,0ptp4l0-21swapper/407:40:184
111391230,0ptp4l0-21swapper/310:20:133
111391230,0ptp4l0-21swapper/207:35:202
111391230,0ptp4l0-21swapper/112:30:191
111391230,0ptp4l0-21swapper/112:18:211
111391230,0ptp4l0-21swapper/112:00:211
111391230,0ptp4l0-21swapper/111:50:121
111391230,0ptp4l0-21swapper/111:35:181
111391230,0ptp4l0-21swapper/111:20:221
111391230,0ptp4l0-21swapper/111:11:031
111391230,0ptp4l0-21swapper/111:05:171
111391230,0ptp4l0-21swapper/110:33:271
111391230,0ptp4l0-21swapper/110:28:481
111391230,0ptp4l0-21swapper/110:28:481
111391230,0ptp4l0-21swapper/110:22:271
111391230,0ptp4l0-21swapper/109:51:071
111391230,0ptp4l0-21swapper/109:47:201
111391230,0ptp4l0-21swapper/109:43:341
111391230,0ptp4l0-21swapper/109:15:141
111391230,0ptp4l0-21swapper/109:10:181
111391230,0ptp4l0-21swapper/109:05:141
111391230,0ptp4l0-21swapper/108:40:111
111391230,0ptp4l0-21swapper/108:30:151
111391230,0ptp4l0-21swapper/108:15:151
111391230,0ptp4l0-21swapper/107:20:151
111391230,0ptp4l0-21swapper/107:10:171
111391230,0ptp4l0-21swapper/012:25:150
111391230,0ptp4l0-21swapper/011:52:520
111391230,0ptp4l0-21swapper/011:00:160
111391230,0ptp4l0-21swapper/010:55:180
111391230,0ptp4l0-21swapper/010:47:570
111391230,0ptp4l0-21swapper/010:43:540
111391230,0ptp4l0-21swapper/010:23:360
111391230,0ptp4l0-21swapper/010:17:070
111391230,0ptp4l0-21swapper/009:55:120
111391230,0ptp4l0-21swapper/009:05:190
111391230,0ptp4l0-21swapper/009:00:120
111391230,0ptp4l0-21swapper/008:35:070
111391230,0ptp4l0-21swapper/008:25:130
111391230,0ptp4l0-21swapper/007:55:110
111391230,0ptp4l0-21swapper/007:50:160
111391230,0ptp4l0-21swapper/007:50:160
111391230,0ptp4l0-21swapper/007:40:150
111391220,0ptp4l0-21swapper/710:54:347
111391220,0ptp4l0-21swapper/612:24:546
111391220,0ptp4l0-21swapper/612:17:496
111391220,0ptp4l0-21swapper/611:58:506
111391220,0ptp4l0-21swapper/611:19:206
111391220,0ptp4l0-21swapper/611:11:216
111391220,0ptp4l0-21swapper/610:48:586
111391220,0ptp4l0-21swapper/609:33:536
111391220,0ptp4l0-21swapper/607:47:476
111391220,0ptp4l0-21swapper/512:16:425
111391220,0ptp4l0-21swapper/512:11:105
111391220,0ptp4l0-21swapper/511:11:025
111391220,0ptp4l0-21swapper/510:29:555
111391220,0ptp4l0-21swapper/510:29:545
111391220,0ptp4l0-21swapper/510:20:515
111391220,0ptp4l0-21swapper/510:15:295
111391220,0ptp4l0-21swapper/509:10:215
111391220,0ptp4l0-21swapper/508:03:035
111391220,0ptp4l0-21swapper/507:55:225
111391220,0ptp4l0-21swapper/410:44:354
111391220,0ptp4l0-21swapper/410:27:234
111391220,0ptp4l0-21swapper/410:27:234
111391220,0ptp4l0-21swapper/409:26:334
111391220,0ptp4l0-21swapper/408:30:114
111391220,0ptp4l0-21swapper/407:55:014
111391220,0ptp4l0-21swapper/407:39:084
111391220,0ptp4l0-21swapper/407:18:184
111391220,0ptp4l0-21swapper/310:54:183
111391220,0ptp4l0-21swapper/211:44:082
111391220,0ptp4l0-21swapper/211:31:572
111391220,0ptp4l0-21swapper/211:11:272
111391220,0ptp4l0-21swapper/210:49:112
111391220,0ptp4l0-21swapper/112:35:571
111391220,0ptp4l0-21swapper/112:11:471
111391220,0ptp4l0-21swapper/111:44:451
111391220,0ptp4l0-21swapper/111:30:041
111391220,0ptp4l0-21swapper/111:00:511
111391220,0ptp4l0-21swapper/110:35:151
111391220,0ptp4l0-21swapper/110:16:451
111391220,0ptp4l0-21swapper/110:14:161
111391220,0ptp4l0-21swapper/110:06:591
111391220,0ptp4l0-21swapper/109:24:361
111391220,0ptp4l0-21swapper/108:09:291
111391220,0ptp4l0-21swapper/012:35:350
111391220,0ptp4l0-21swapper/011:55:210
111391220,0ptp4l0-21swapper/009:36:550
111391220,0ptp4l0-21swapper/008:15:200
111391220,0ptp4l0-21swapper/008:10:130
111391220,0ptp4l0-21swapper/007:45:130
111391220,0ptp4l0-21swapper/007:25:010
111391220,0ptp4l0-21swapper/007:20:000
111391220,0ptp4l0-21swapper/007:18:460
111391210,1ptp4l15326-21ssh10:25:532
111391210,1ptp4l15326-21ssh10:25:522
111391210,0ptp4l7467-21ssh11:01:272
111391210,0ptp4l25254-21diskmemload10:14:175
111391210,0ptp4l0-21swapper/711:19:467
111391210,0ptp4l0-21swapper/611:35:516
111391210,0ptp4l0-21swapper/611:27:256
111391210,0ptp4l0-21swapper/610:40:426
111391210,0ptp4l0-21swapper/609:16:506
111391210,0ptp4l0-21swapper/510:58:165
111391210,0ptp4l0-21swapper/510:50:515
111391210,0ptp4l0-21swapper/509:41:285
111391210,0ptp4l0-21swapper/509:02:045
111391210,0ptp4l0-21swapper/311:19:273
111391210,0ptp4l0-21swapper/212:25:552
111391210,0ptp4l0-21swapper/211:35:472
111391210,0ptp4l0-21swapper/211:29:482
111391210,0ptp4l0-21swapper/210:24:252
111391210,0ptp4l0-21swapper/209:16:572
111391210,0ptp4l0-21swapper/208:45:492
111391210,0ptp4l0-21swapper/208:24:572
111391210,0ptp4l0-21swapper/112:21:101
111391210,0ptp4l0-21swapper/110:50:501
111391210,0ptp4l0-21swapper/008:24:060
232602200,0sleep10-21swapper/111:25:131
111391200,0ptp4l0-21swapper/710:19:387
111391200,0ptp4l0-21swapper/612:34:246
111391200,0ptp4l0-21swapper/611:33:106
111391200,0ptp4l0-21swapper/610:25:546
111391200,0ptp4l0-21swapper/610:25:546
111391200,0ptp4l0-21swapper/609:11:076
111391200,0ptp4l0-21swapper/607:54:446
111391200,0ptp4l0-21swapper/607:54:436
111391200,0ptp4l0-21swapper/511:33:555
111391200,0ptp4l0-21swapper/509:09:555
111391200,0ptp4l0-21swapper/508:36:485
111391200,0ptp4l0-21swapper/508:09:065
111391200,0ptp4l0-21swapper/507:52:485
111391200,0ptp4l0-21swapper/507:52:475
111391200,0ptp4l0-21swapper/408:16:074
111391200,0ptp4l0-21swapper/407:24:424
111391200,0ptp4l0-21swapper/212:18:062
111391200,0ptp4l0-21swapper/211:51:562
111391200,0ptp4l0-21swapper/211:19:252
111391200,0ptp4l0-21swapper/210:59:072
111391200,0ptp4l0-21swapper/209:12:072
111391200,0ptp4l0-21swapper/209:05:342
111391200,0ptp4l0-21swapper/110:56:001
111391200,0ptp4l0-21swapper/108:03:471
111391200,0ptp4l0-21swapper/107:53:101
111391200,0ptp4l0-21swapper/107:53:091
111391200,0ptp4l0-21swapper/008:43:480
202482190,0sleep21068-21runrttasks11:20:162
111391190,0ptp4l0-21swapper/610:03:406
111391190,0ptp4l0-21swapper/607:32:126
111391190,0ptp4l0-21swapper/408:22:034
111391190,0ptp4l0-21swapper/211:58:452
111391190,0ptp4l0-21swapper/210:40:412
111391190,0ptp4l0-21swapper/210:03:372
111391190,0ptp4l0-21swapper/209:32:242
111391190,0ptp4l0-21swapper/109:04:101
225452180,0sleep20-21swapper/212:10:152
111391180,2ptp4l0-21swapper/108:13:521
111391180,0ptp4l0-21swapper/611:51:556
111391180,0ptp4l0-21swapper/609:25:396
111391180,0ptp4l0-21swapper/507:44:555
111391180,0ptp4l0-21swapper/407:10:144
111391180,0ptp4l0-21swapper/210:00:002
111391180,0ptp4l0-21swapper/209:25:402
111391180,0ptp4l0-21swapper/209:21:292
111391180,0ptp4l0-21swapper/207:28:502
111391170,0ptp4l0-21swapper/609:59:576
111391170,0ptp4l0-21swapper/511:26:505
111391170,0ptp4l0-21swapper/211:45:532
111391170,0ptp4l0-21swapper/108:38:191
2142991612,1cyclictest13032-21/usr/sbin/munin07:30:144
213699160,1cyclictest0-21swapper/309:15:153
111391160,1ptp4l212899cyclictest07:54:472
111391160,1ptp4l212899cyclictest07:54:462
111391160,0ptp4l0-21swapper/611:45:516
111391160,0ptp4l0-21swapper/608:29:216
111391160,0ptp4l0-21swapper/507:49:245
111391160,0ptp4l0-21swapper/408:56:274
111391160,0ptp4l0-21swapper/208:29:222
111391160,0ptp4l0-21swapper/207:47:482
111391160,0ptp4l0-21swapper/108:27:381
111391160,0ptp4l0-21swapper/107:46:281
111391160,0ptp4l0-21swapper/107:29:101
111391160,0ptp4l0-21swapper/008:59:120
111391160,0ptp4l0-21swapper/008:31:300
111391160,0ptp4l0-21swapper/007:30:430
111391150,0ptp4l0-21swapper/708:43:287
111391150,0ptp4l0-21swapper/609:05:356
111391150,0ptp4l0-21swapper/608:45:476
111391150,0ptp4l0-21swapper/608:35:106
111391150,0ptp4l0-21swapper/608:21:106
111391150,0ptp4l0-21swapper/608:01:026
111391150,0ptp4l0-21swapper/607:57:316
111391150,0ptp4l0-21swapper/607:28:466
111391150,0ptp4l0-21swapper/607:22:346
111391150,0ptp4l0-21swapper/511:00:505
111391150,0ptp4l0-21swapper/508:51:215
111391150,0ptp4l0-21swapper/508:27:345
111391150,0ptp4l0-21swapper/508:11:205
111391150,0ptp4l0-21swapper/507:27:185
111391150,0ptp4l0-21swapper/308:43:263
111391150,0ptp4l0-21swapper/208:58:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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