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2025-12-29 - 22:02

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 Mon Dec 29, 2025 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391710,38ptp4l0-21swapper/107:09:571
34002640,0sleep40-21swapper/410:20:154
111391630,5ptp4l0-21swapper/007:08:150
1881915937,7phc2sys0-21swapper/207:07:222
111391590,4ptp4l0-21swapper/407:09:004
151912580,0sleep00-21swapper/011:18:100
293702550,0sleep30-21swapper/311:35:203
111391540,6ptp4l0-21swapper/507:05:145
14482530,0sleep40-21swapper/410:18:474
2046625139,7sleep70-21swapper/707:06:197
2071924836,7sleep30-21swapper/307:09:363
2064024834,9sleep60-21swapper/607:08:356
111391350,0ptp4l0-21swapper/110:00:201
111391340,0ptp4l0-21swapper/512:40:005
111391310,4ptp4l0-21swapper/509:44:315
111391310,0ptp4l0-21swapper/011:30:020
111391310,0ptp4l0-21swapper/009:40:340
111391300,1ptp4l23383-21sh10:45:375
111391300,0ptp4l0-21swapper/512:29:125
111391300,0ptp4l0-21swapper/011:58:560
111391300,0ptp4l0-21swapper/011:13:360
111391290,3ptp4l0-21swapper/011:21:380
111391290,0ptp4l0-21swapper/509:57:415
111391290,0ptp4l0-21swapper/411:21:404
111391290,0ptp4l0-21swapper/111:39:191
111391290,0ptp4l0-21swapper/110:16:091
111391290,0ptp4l0-21swapper/012:22:180
111391280,3ptp4l0-21swapper/312:12:373
111391280,0ptp4l0-21swapper/511:22:515
111391280,0ptp4l0-21swapper/511:04:585
111391280,0ptp4l0-21swapper/510:51:125
111391280,0ptp4l0-21swapper/212:26:352
111391280,0ptp4l0-21swapper/209:14:452
111391280,0ptp4l0-21swapper/111:45:231
111391280,0ptp4l0-21swapper/110:21:181
111391280,0ptp4l0-21swapper/012:25:140
111391280,0ptp4l0-21swapper/010:18:330
111391280,0ptp4l0-21swapper/010:01:440
111391280,0ptp4l0-21swapper/009:35:370
111391280,0ptp4l0-21swapper/009:21:340
111391270,0ptp4l0-21swapper/609:41:236
111391270,0ptp4l0-21swapper/510:57:455
111391270,0ptp4l0-21swapper/510:32:395
111391270,0ptp4l0-21swapper/407:30:214
111391270,0ptp4l0-21swapper/309:12:563
111391270,0ptp4l0-21swapper/110:53:401
111391270,0ptp4l0-21swapper/108:05:121
111391270,0ptp4l0-21swapper/012:32:490
111391270,0ptp4l0-21swapper/012:18:210
111391270,0ptp4l0-21swapper/011:03:520
111391260,3ptp4l241ktimersoftd/110:34:231
111391260,0ptp4l0-21swapper/609:59:086
111391260,0ptp4l0-21swapper/510:23:065
111391260,0ptp4l0-21swapper/412:19:174
111391260,0ptp4l0-21swapper/411:55:544
111391260,0ptp4l0-21swapper/410:47:294
111391260,0ptp4l0-21swapper/410:11:214
111391260,0ptp4l0-21swapper/409:34:324
111391260,0ptp4l0-21swapper/409:17:114
111391260,0ptp4l0-21swapper/210:16:532
111391260,0ptp4l0-21swapper/209:30:512
111391260,0ptp4l0-21swapper/111:43:091
111391260,0ptp4l0-21swapper/109:25:031
111391260,0ptp4l0-21swapper/109:25:031
111391260,0ptp4l0-21swapper/012:05:120
111391260,0ptp4l0-21swapper/012:05:120
111391260,0ptp4l0-21swapper/012:00:150
111391260,0ptp4l0-21swapper/010:48:330
111391260,0ptp4l0-21swapper/010:10:000
111391260,0ptp4l0-21swapper/007:47:530
111391250,3ptp4l0-21swapper/010:54:520
111391250,0ptp4l6799-21ls07:45:204
111391250,0ptp4l0-21swapper/511:40:545
111391250,0ptp4l0-21swapper/511:07:355
111391250,0ptp4l0-21swapper/510:44:195
111391250,0ptp4l0-21swapper/509:25:115
111391250,0ptp4l0-21swapper/509:25:115
111391250,0ptp4l0-21swapper/509:18:095
111391250,0ptp4l0-21swapper/508:06:405
111391250,0ptp4l0-21swapper/411:45:004
111391250,0ptp4l0-21swapper/409:45:144
111391250,0ptp4l0-21swapper/409:27:004
111391250,0ptp4l0-21swapper/409:27:004
111391250,0ptp4l0-21swapper/210:26:112
111391250,0ptp4l0-21swapper/112:24:541
111391250,0ptp4l0-21swapper/109:18:471
111391250,0ptp4l0-21swapper/108:55:401
111391250,0ptp4l0-21swapper/108:34:501
111391250,0ptp4l0-21swapper/108:00:201
111391250,0ptp4l0-21swapper/107:54:451
111391250,0ptp4l0-21swapper/011:45:440
111391250,0ptp4l0-21swapper/010:36:020
111391250,0ptp4l0-21swapper/008:20:170
111391250,0ptp4l0-21swapper/007:30:190
111391250,0ptp4l0-21swapper/007:15:000
111391240,1ptp4l6135-21timerwakeupswit11:05:184
111391240,1ptp4l29656-21sed08:35:201
111391240,1ptp4l29526-21timerwakeupswit11:35:205
111391240,1ptp4l28325-21cat08:35:005
111391240,1ptp4l21404-21switchtime11:25:200
111391240,1ptp4l1458-21latency_hist12:25:005
111391240,1ptp4l0-21swapper/511:14:295
111391240,0ptp4l0-21swapper/709:23:457
111391240,0ptp4l0-21swapper/709:13:027
111391240,0ptp4l0-21swapper/511:48:595
111391240,0ptp4l0-21swapper/511:27:545
111391240,0ptp4l0-21swapper/509:35:135
111391240,0ptp4l0-21swapper/508:00:465
111391240,0ptp4l0-21swapper/412:30:204
111391240,0ptp4l0-21swapper/411:25:304
111391240,0ptp4l0-21swapper/411:10:214
111391240,0ptp4l0-21swapper/410:58:594
111391240,0ptp4l0-21swapper/410:03:534
111391240,0ptp4l0-21swapper/408:30:154
111391240,0ptp4l0-21swapper/111:28:221
111391240,0ptp4l0-21swapper/111:06:421
111391240,0ptp4l0-21swapper/110:44:021
111391240,0ptp4l0-21swapper/109:24:181
111391240,0ptp4l0-21swapper/108:52:051
111391240,0ptp4l0-21swapper/108:41:571
111391240,0ptp4l0-21swapper/011:05:160
111391240,0ptp4l0-21swapper/008:51:220
111391230,1ptp4l3206-21grep08:50:114
111391230,1ptp4l31725-21sed11:40:010
111391230,1ptp4l15710-21ssh09:55:114
111391230,1ptp4l12629-21cpuspeed_turbos11:15:101
111391230,1ptp4l10381-21diskstats07:55:131
111391230,0ptp4l0-21swapper/609:25:196
111391230,0ptp4l0-21swapper/609:25:196
111391230,0ptp4l0-21swapper/512:15:155
111391230,0ptp4l0-21swapper/510:00:135
111391230,0ptp4l0-21swapper/509:50:135
111391230,0ptp4l0-21swapper/509:23:125
111391230,0ptp4l0-21swapper/508:59:505
111391230,0ptp4l0-21swapper/508:45:145
111391230,0ptp4l0-21swapper/508:35:125
111391230,0ptp4l0-21swapper/508:27:575
111391230,0ptp4l0-21swapper/508:10:135
111391230,0ptp4l0-21swapper/507:55:065
111391230,0ptp4l0-21swapper/412:35:124
111391230,0ptp4l0-21swapper/412:25:164
111391230,0ptp4l0-21swapper/412:20:134
111391230,0ptp4l0-21swapper/412:00:214
111391230,0ptp4l0-21swapper/411:50:134
111391230,0ptp4l0-21swapper/411:30:214
111391230,0ptp4l0-21swapper/410:40:514
111391230,0ptp4l0-21swapper/410:38:224
111391230,0ptp4l0-21swapper/410:33:424
111391230,0ptp4l0-21swapper/410:05:154
111391230,0ptp4l0-21swapper/409:10:114
111391230,0ptp4l0-21swapper/409:05:194
111391230,0ptp4l0-21swapper/408:15:214
111391230,0ptp4l0-21swapper/407:20:174
111391230,0ptp4l0-21swapper/112:15:131
111391230,0ptp4l0-21swapper/110:58:421
111391230,0ptp4l0-21swapper/109:50:131
111391230,0ptp4l0-21swapper/109:35:181
111391230,0ptp4l0-21swapper/108:20:111
111391230,0ptp4l0-21swapper/012:38:360
111391230,0ptp4l0-21swapper/012:11:040
111391230,0ptp4l0-21swapper/011:50:150
111391230,0ptp4l0-21swapper/011:40:160
111391230,0ptp4l0-21swapper/010:35:000
111391230,0ptp4l0-21swapper/010:20:180
111391230,0ptp4l0-21swapper/009:55:130
111391230,0ptp4l0-21swapper/009:15:200
111391230,0ptp4l0-21swapper/009:10:100
111391230,0ptp4l0-21swapper/009:05:200
111391230,0ptp4l0-21swapper/009:00:180
111391230,0ptp4l0-21swapper/007:25:160
111391230,0ptp4l0-21swapper/007:18:320
111391220,1ptp4l0-21swapper/109:40:461
111391220,0ptp4l0-21swapper/712:12:517
111391220,0ptp4l0-21swapper/711:58:407
111391220,0ptp4l0-21swapper/707:40:187
111391220,0ptp4l0-21swapper/707:39:567
111391220,0ptp4l0-21swapper/611:55:066
111391220,0ptp4l0-21swapper/611:31:366
111391220,0ptp4l0-21swapper/610:38:566
111391220,0ptp4l0-21swapper/610:05:126
111391220,0ptp4l0-21swapper/607:25:126
111391220,0ptp4l0-21swapper/512:05:195
111391220,0ptp4l0-21swapper/512:05:195
111391220,0ptp4l0-21swapper/512:04:185
111391220,0ptp4l0-21swapper/511:51:385
111391220,0ptp4l0-21swapper/511:15:115
111391220,0ptp4l0-21swapper/510:26:555
111391220,0ptp4l0-21swapper/510:16:125
111391220,0ptp4l0-21swapper/510:10:125
111391220,0ptp4l0-21swapper/510:06:405
111391220,0ptp4l0-21swapper/509:50:005
111391220,0ptp4l0-21swapper/509:30:165
111391220,0ptp4l0-21swapper/509:10:155
111391220,0ptp4l0-21swapper/509:00:165
111391220,0ptp4l0-21swapper/508:40:235
111391220,0ptp4l0-21swapper/507:54:535
111391220,0ptp4l0-21swapper/412:10:124
111391220,0ptp4l0-21swapper/412:05:144
111391220,0ptp4l0-21swapper/412:05:134
111391220,0ptp4l0-21swapper/411:40:154
111391220,0ptp4l0-21swapper/411:35:294
111391220,0ptp4l0-21swapper/411:15:014
111391220,0ptp4l0-21swapper/411:00:264
111391220,0ptp4l0-21swapper/410:50:144
111391220,0ptp4l0-21swapper/410:25:004
111391220,0ptp4l0-21swapper/409:53:294
111391220,0ptp4l0-21swapper/409:40:164
111391220,0ptp4l0-21swapper/409:39:144
111391220,0ptp4l0-21swapper/409:20:134
111391220,0ptp4l0-21swapper/409:00:204
111391220,0ptp4l0-21swapper/408:55:174
111391220,0ptp4l0-21swapper/408:40:154
111391220,0ptp4l0-21swapper/407:50:124
111391220,0ptp4l0-21swapper/407:35:154
111391220,0ptp4l0-21swapper/407:25:184
111391220,0ptp4l0-21swapper/407:15:124
111391220,0ptp4l0-21swapper/407:10:134
111391220,0ptp4l0-21swapper/211:31:342
111391220,0ptp4l0-21swapper/210:31:062
111391220,0ptp4l0-21swapper/209:41:502
111391220,0ptp4l0-21swapper/209:38:462
111391220,0ptp4l0-21swapper/208:43:472
111391220,0ptp4l0-21swapper/207:25:142
111391220,0ptp4l0-21swapper/112:35:211
111391220,0ptp4l0-21swapper/112:25:191
111391220,0ptp4l0-21swapper/112:05:191
111391220,0ptp4l0-21swapper/112:05:181
111391220,0ptp4l0-21swapper/111:34:151
111391220,0ptp4l0-21swapper/111:20:111
111391220,0ptp4l0-21swapper/111:10:121
111391220,0ptp4l0-21swapper/111:04:481
111391220,0ptp4l0-21swapper/110:10:021
111391220,0ptp4l0-21swapper/109:30:171
111391220,0ptp4l0-21swapper/109:10:131
111391220,0ptp4l0-21swapper/109:05:111
111391220,0ptp4l0-21swapper/109:00:121
111391220,0ptp4l0-21swapper/108:45:181
111391220,0ptp4l0-21swapper/108:10:161
111391220,0ptp4l0-21swapper/107:14:221
111391220,0ptp4l0-21swapper/010:55:150
111391220,0ptp4l0-21swapper/010:40:000
111391220,0ptp4l0-21swapper/010:25:150
111391220,0ptp4l0-21swapper/010:12:440
111391220,0ptp4l0-21swapper/009:54:460
111391220,0ptp4l0-21swapper/009:45:130
111391220,0ptp4l0-21swapper/009:32:180
111391220,0ptp4l0-21swapper/009:25:150
111391220,0ptp4l0-21swapper/009:25:140
111391220,0ptp4l0-21swapper/008:55:130
111391220,0ptp4l0-21swapper/008:38:070
111391220,0ptp4l0-21swapper/008:15:000
111391220,0ptp4l0-21swapper/007:50:180
111391220,0ptp4l0-21swapper/007:35:160
111391220,0ptp4l0-21swapper/007:20:130
111391210,2ptp4l0-21swapper/107:38:301
111391210,0ptp4l0-21swapper/612:26:506
111391210,0ptp4l0-21swapper/612:14:586
111391210,0ptp4l0-21swapper/610:33:556
111391210,0ptp4l0-21swapper/610:15:446
111391210,0ptp4l0-21swapper/609:30:466
111391210,0ptp4l0-21swapper/512:11:145
111391210,0ptp4l0-21swapper/511:56:255
111391210,0ptp4l0-21swapper/511:31:465
111391210,0ptp4l0-21swapper/407:44:324
111391210,0ptp4l0-21swapper/307:40:133
111391210,0ptp4l0-21swapper/212:24:422
111391210,0ptp4l0-21swapper/212:16:012
111391210,0ptp4l0-21swapper/212:06:232
111391210,0ptp4l0-21swapper/212:06:222
111391210,0ptp4l0-21swapper/211:55:452
111391210,0ptp4l0-21swapper/211:01:382
111391210,0ptp4l0-21swapper/210:59:472
111391210,0ptp4l0-21swapper/210:46:382
111391210,0ptp4l0-21swapper/210:38:472
111391210,0ptp4l0-21swapper/209:59:042
111391210,0ptp4l0-21swapper/208:20:312
111391210,0ptp4l0-21swapper/112:00:341
111391210,0ptp4l0-21swapper/111:55:011
111391210,0ptp4l0-21swapper/111:52:071
111391210,0ptp4l0-21swapper/110:49:011
111391210,0ptp4l0-21swapper/110:27:221
111391210,0ptp4l0-21swapper/110:06:161
111391210,0ptp4l0-21swapper/109:57:511
111391210,0ptp4l0-21swapper/109:47:421
111391210,0ptp4l0-21swapper/108:19:011
111391210,0ptp4l0-21swapper/107:48:451
111391210,0ptp4l0-21swapper/107:16:291
111391210,0ptp4l0-21swapper/008:40:170
111391210,0ptp4l0-21swapper/008:30:140
111391210,0ptp4l0-21swapper/008:26:320
111391210,0ptp4l0-21swapper/008:00:120
111391210,0ptp4l0-21swapper/007:55:190
111391210,0ptp4l0-21swapper/007:42:250
111391200,0ptp4l0-21swapper/711:53:227
111391200,0ptp4l0-21swapper/612:15:576
111391200,0ptp4l0-21swapper/612:06:196
111391200,0ptp4l0-21swapper/612:06:186
111391200,0ptp4l0-21swapper/611:41:076
111391200,0ptp4l0-21swapper/610:59:476
111391200,0ptp4l0-21swapper/610:26:106
111391200,0ptp4l0-21swapper/608:58:316
111391200,0ptp4l0-21swapper/507:12:325
111391200,0ptp4l0-21swapper/408:27:314
111391200,0ptp4l0-21swapper/408:20:174
111391200,0ptp4l0-21swapper/408:00:134
111391200,0ptp4l0-21swapper/309:23:453
111391200,0ptp4l0-21swapper/307:40:013
111391200,0ptp4l0-21swapper/212:14:542
111391200,0ptp4l0-21swapper/212:03:342
111391200,0ptp4l0-21swapper/211:52:222
111391200,0ptp4l0-21swapper/211:35:482
111391200,0ptp4l0-21swapper/211:06:132
111391200,0ptp4l0-21swapper/209:09:322
111391200,0ptp4l0-21swapper/207:51:322
111391200,0ptp4l0-21swapper/112:33:381
111391200,0ptp4l0-21swapper/112:11:261
111391200,0ptp4l0-21swapper/110:35:101
111391200,0ptp4l0-21swapper/107:22:441
284872190,0sleep70-21swapper/707:25:017
111391190,0ptp4l0-21swapper/709:19:427
111391190,0ptp4l0-21swapper/708:30:457
111391190,0ptp4l0-21swapper/612:24:186
111391190,0ptp4l0-21swapper/611:35:436
111391190,0ptp4l0-21swapper/609:36:566
111391190,0ptp4l0-21swapper/508:19:555
111391190,0ptp4l0-21swapper/507:44:565
111391190,0ptp4l0-21swapper/507:21:445
111391190,0ptp4l0-21swapper/507:16:325
111391190,0ptp4l0-21swapper/408:09:454
111391190,0ptp4l0-21swapper/407:55:174
111391190,0ptp4l0-21swapper/108:25:321
111391180,0ptp4l0-21swapper/611:01:396
111391180,0ptp4l0-21swapper/508:50:225
111391180,0ptp4l0-21swapper/408:36:314
111391180,0ptp4l0-21swapper/311:53:243
111391180,0ptp4l0-21swapper/210:05:072
111391170,0ptp4l0-21swapper/612:03:316
111391170,0ptp4l0-21swapper/611:52:236
111391170,0ptp4l0-21swapper/611:06:146
111391170,0ptp4l0-21swapper/610:50:336
111391170,0ptp4l0-21swapper/610:01:416
111391170,0ptp4l0-21swapper/608:05:376
111391170,0ptp4l0-21swapper/512:33:335
111391170,0ptp4l0-21swapper/509:07:585
111391170,0ptp4l0-21swapper/508:20:015
111391170,0ptp4l0-21swapper/311:58:363
111391170,0ptp4l0-21swapper/210:41:052
111391170,0ptp4l0-21swapper/008:47:570
111391170,0ptp4l0-21swapper/008:05:150
129402160,0sleep20-21swapper/212:39:512
111391160,1ptp4l17002-21/usr/sbin/munin08:10:200
111391160,0ptp4l0-21swapper/610:46:396
111391160,0ptp4l0-21swapper/507:36:155
111391160,0ptp4l0-21swapper/210:01:402
111391160,0ptp4l0-21swapper/208:33:392
111391160,0ptp4l0-21swapper/107:30:401
111391160,0ptp4l0-21swapper/107:25:331
111391150,0ptp4l0-21swapper/707:13:177
111391150,0ptp4l0-21swapper/609:09:246
111391150,0ptp4l0-21swapper/608:46:216
111391150,0ptp4l0-21swapper/608:31:156
111391150,0ptp4l0-21swapper/608:26:406
111391150,0ptp4l0-21swapper/608:20:276
111391150,0ptp4l0-21swapper/608:14:356
111391150,0ptp4l0-21swapper/607:58:006
111391150,0ptp4l0-21swapper/607:51:296
111391150,0ptp4l0-21swapper/607:43:526
111391150,0ptp4l0-21swapper/607:34:346
111391150,0ptp4l0-21swapper/607:18:466
111391150,0ptp4l0-21swapper/510:35:095
111391150,0ptp4l0-21swapper/507:46:175
111391150,0ptp4l0-21swapper/507:30:405
111391150,0ptp4l0-21swapper/507:25:335
111391150,0ptp4l0-21swapper/408:45:084
111391150,0ptp4l0-21swapper/408:10:314
111391150,0ptp4l0-21swapper/308:30:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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