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2026-07-23 - 00:16

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 Jul 22, 2026 12:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
333826543,7sleep20-21swapper/207:06:032
122942620,0sleep20-21swapper/209:30:212
111391620,5ptp4l0-21swapper/107:06:421
111391610,57ptp4l0-21swapper/607:05:166
93992580,0sleep70-21swapper/709:27:377
263042570,0sleep00-21swapper/012:37:480
1881915734,7phc2sys0-21swapper/507:06:225
170625443,6sleep70-21swapper/707:05:057
359825342,6sleep40-21swapper/407:09:194
352425332,7sleep30-21swapper/307:08:223
330025241,7sleep00-21swapper/007:05:300
81342510,0sleep00-21swapper/010:50:130
111391400,0ptp4l17290-21/usr/sbin/munin07:35:191
111391340,0ptp4l0-21swapper/409:39:234
111391340,0ptp4l0-21swapper/109:10:341
111391330,0ptp4l0-21swapper/008:20:160
111391320,0ptp4l0-21swapper/510:20:555
111391320,0ptp4l0-21swapper/412:37:134
111391320,0ptp4l0-21swapper/409:21:284
111391310,4ptp4l21337-21ssh12:30:190
111391310,0ptp4l0-21swapper/412:31:274
111391310,0ptp4l0-21swapper/410:40:124
111391310,0ptp4l0-21swapper/410:25:374
111391310,0ptp4l0-21swapper/409:05:204
111391310,0ptp4l0-21swapper/110:32:351
111391300,4ptp4l0-21swapper/011:58:170
111391300,4ptp4l0-21swapper/011:58:170
111391300,0ptp4l0-21swapper/511:11:155
111391300,0ptp4l0-21swapper/510:10:345
111391300,0ptp4l0-21swapper/411:40:344
111391300,0ptp4l0-21swapper/411:37:454
111391300,0ptp4l0-21swapper/410:37:044
111391300,0ptp4l0-21swapper/409:58:184
111391300,0ptp4l0-21swapper/309:23:323
111391300,0ptp4l0-21swapper/112:39:231
111391300,0ptp4l0-21swapper/109:34:481
111391300,0ptp4l0-21swapper/011:18:050
111391300,0ptp4l0-21swapper/009:45:220
111391300,0ptp4l0-21swapper/009:36:590
111391290,7ptp4l0-21swapper/411:56:104
111391290,7ptp4l0-21swapper/411:56:104
111391290,3ptp4l0-21swapper/010:18:430
111391290,0ptp4l0-21swapper/511:31:095
111391290,0ptp4l0-21swapper/511:19:245
111391290,0ptp4l0-21swapper/510:02:075
111391290,0ptp4l0-21swapper/412:21:274
111391290,0ptp4l0-21swapper/411:31:544
111391290,0ptp4l0-21swapper/410:32:494
111391290,0ptp4l0-21swapper/110:50:491
111391290,0ptp4l0-21swapper/109:29:241
111391280,3ptp4l101ktimersoftd/012:17:240
111391280,0ptp4l0-21swapper/710:57:197
111391280,0ptp4l0-21swapper/611:00:316
111391280,0ptp4l0-21swapper/412:11:584
111391280,0ptp4l0-21swapper/410:19:344
111391280,0ptp4l0-21swapper/410:09:444
111391280,0ptp4l0-21swapper/409:10:154
111391280,0ptp4l0-21swapper/308:45:113
111391280,0ptp4l0-21swapper/111:59:311
111391280,0ptp4l0-21swapper/111:59:311
111391280,0ptp4l0-21swapper/012:06:290
111391280,0ptp4l0-21swapper/009:19:250
111391280,0ptp4l0-21swapper/009:19:250
111391270,5ptp4l13567-21kworker/0:011:41:290
111391270,0ptp4l0-21swapper/709:23:417
111391270,0ptp4l0-21swapper/412:04:144
111391270,0ptp4l0-21swapper/410:47:564
111391270,0ptp4l0-21swapper/407:10:124
111391270,0ptp4l0-21swapper/111:49:151
111391270,0ptp4l0-21swapper/111:30:071
111391270,0ptp4l0-21swapper/110:14:131
111391260,2ptp4l0-21swapper/409:33:334
111391260,0ptp4l0-21swapper/711:04:137
111391260,0ptp4l0-21swapper/411:21:074
111391260,0ptp4l0-21swapper/410:23:574
111391260,0ptp4l0-21swapper/409:54:454
111391260,0ptp4l0-21swapper/409:41:514
111391260,0ptp4l0-21swapper/409:18:544
111391260,0ptp4l0-21swapper/409:18:544
111391260,0ptp4l0-21swapper/111:11:041
111391260,0ptp4l0-21swapper/110:49:561
111391260,0ptp4l0-21swapper/110:40:211
111391260,0ptp4l0-21swapper/011:53:150
111391260,0ptp4l0-21swapper/011:53:140
111391260,0ptp4l0-21swapper/009:40:480
111391260,0ptp4l0-21swapper/008:10:160
111391250,2ptp4l0-21swapper/512:33:335
111391250,2ptp4l0-21swapper/011:26:310
111391250,1ptp4l8534-21users09:25:240
111391250,1ptp4l4442-21kworker/u16:210:05:150
111391250,1ptp4l2286-21cut08:15:130
111391250,1ptp4l22789-21diskstats09:45:124
111391250,1ptp4l0-21swapper/509:51:465
111391250,0ptp4l0-21swapper/509:30:575
111391250,0ptp4l0-21swapper/509:14:495
111391250,0ptp4l0-21swapper/412:17:334
111391250,0ptp4l0-21swapper/411:26:434
111391250,0ptp4l0-21swapper/411:14:444
111391250,0ptp4l0-21swapper/410:51:044
111391250,0ptp4l0-21swapper/409:26:024
111391250,0ptp4l0-21swapper/112:10:551
111391250,0ptp4l0-21swapper/112:05:161
111391250,0ptp4l0-21swapper/111:43:391
111391250,0ptp4l0-21swapper/111:07:331
111391250,0ptp4l0-21swapper/110:25:191
111391250,0ptp4l0-21swapper/109:35:241
111391250,0ptp4l0-21swapper/107:40:061
111391250,0ptp4l0-21swapper/012:25:120
111391250,0ptp4l0-21swapper/009:55:160
111391250,0ptp4l0-21swapper/007:15:170
111391240,1ptp4l812-21kernelversion10:40:170
111391240,1ptp4l28890-21tr10:35:120
111391240,0ptp4l27024-21diskmemload11:49:494
111391240,0ptp4l27024-21diskmemload10:34:160
111391240,0ptp4l0-21swapper/512:05:175
111391240,0ptp4l0-21swapper/507:15:015
111391240,0ptp4l0-21swapper/412:10:004
111391240,0ptp4l0-21swapper/411:06:274
111391240,0ptp4l0-21swapper/408:20:144
111391240,0ptp4l0-21swapper/212:37:392
111391240,0ptp4l0-21swapper/111:03:121
111391240,0ptp4l0-21swapper/109:50:341
111391240,0ptp4l0-21swapper/107:56:511
111391240,0ptp4l0-21swapper/011:20:170
111391240,0ptp4l0-21swapper/010:25:160
111391240,0ptp4l0-21swapper/010:24:210
111391240,0ptp4l0-21swapper/010:05:000
111391240,0ptp4l0-21swapper/008:55:210
111391240,0ptp4l0-21swapper/008:40:160
111391240,0ptp4l0-21swapper/008:25:260
111391240,0ptp4l0-21swapper/007:45:160
111391230,1ptp4l4904-21latency10:45:143
111391230,1ptp4l2388-21latency10:00:171
111391230,1ptp4l18723-21ps08:50:134
111391230,0ptp4l1068-21runrttasks08:34:274
111391230,0ptp4l0-21swapper/708:05:137
111391230,0ptp4l0-21swapper/512:22:135
111391230,0ptp4l0-21swapper/512:15:215
111391230,0ptp4l0-21swapper/511:28:305
111391230,0ptp4l0-21swapper/511:01:145
111391230,0ptp4l0-21swapper/510:50:155
111391230,0ptp4l0-21swapper/510:44:045
111391230,0ptp4l0-21swapper/510:25:205
111391230,0ptp4l0-21swapper/510:06:465
111391230,0ptp4l0-21swapper/510:00:015
111391230,0ptp4l0-21swapper/509:00:175
111391230,0ptp4l0-21swapper/508:30:195
111391230,0ptp4l0-21swapper/507:55:215
111391230,0ptp4l0-21swapper/507:50:225
111391230,0ptp4l0-21swapper/412:25:154
111391230,0ptp4l0-21swapper/411:50:154
111391230,0ptp4l0-21swapper/411:50:154
111391230,0ptp4l0-21swapper/411:15:344
111391230,0ptp4l0-21swapper/411:00:124
111391230,0ptp4l0-21swapper/410:55:164
111391230,0ptp4l0-21swapper/408:40:154
111391230,0ptp4l0-21swapper/408:35:174
111391230,0ptp4l0-21swapper/408:25:144
111391230,0ptp4l0-21swapper/408:16:594
111391230,0ptp4l0-21swapper/408:10:194
111391230,0ptp4l0-21swapper/408:00:014
111391230,0ptp4l0-21swapper/407:45:184
111391230,0ptp4l0-21swapper/407:30:134
111391230,0ptp4l0-21swapper/407:25:164
111391230,0ptp4l0-21swapper/407:20:144
111391230,0ptp4l0-21swapper/407:15:174
111391230,0ptp4l0-21swapper/310:57:343
111391230,0ptp4l0-21swapper/309:05:003
111391230,0ptp4l0-21swapper/211:00:202
111391230,0ptp4l0-21swapper/111:18:431
111391230,0ptp4l0-21swapper/110:06:391
111391230,0ptp4l0-21swapper/109:45:381
111391230,0ptp4l0-21swapper/109:20:231
111391230,0ptp4l0-21swapper/109:15:151
111391230,0ptp4l0-21swapper/109:15:141
111391230,0ptp4l0-21swapper/109:00:141
111391230,0ptp4l0-21swapper/108:50:001
111391230,0ptp4l0-21swapper/108:30:121
111391230,0ptp4l0-21swapper/108:14:361
111391230,0ptp4l0-21swapper/107:50:191
111391230,0ptp4l0-21swapper/107:19:301
111391230,0ptp4l0-21swapper/107:13:481
111391230,0ptp4l0-21swapper/012:20:180
111391230,0ptp4l0-21swapper/012:10:160
111391230,0ptp4l0-21swapper/011:45:200
111391230,0ptp4l0-21swapper/011:40:010
111391230,0ptp4l0-21swapper/011:32:030
111391230,0ptp4l0-21swapper/011:05:130
111391230,0ptp4l0-21swapper/010:55:140
111391230,0ptp4l0-21swapper/010:10:400
111391230,0ptp4l0-21swapper/009:20:200
111391230,0ptp4l0-21swapper/009:05:180
111391230,0ptp4l0-21swapper/008:50:110
111391230,0ptp4l0-21swapper/008:35:130
111391230,0ptp4l0-21swapper/007:30:130
111391230,0ptp4l0-21swapper/007:20:140
111391230,0ptp4l0-21swapper/007:10:460
111391220,0ptp4l28855-21xargs08:00:210
111391220,0ptp4l26230-21ssh12:37:376
111391220,0ptp4l15978-21cut07:35:001
111391220,0ptp4l0-21swapper/712:14:077
111391220,0ptp4l0-21swapper/710:45:177
111391220,0ptp4l0-21swapper/709:17:377
111391220,0ptp4l0-21swapper/709:17:377
111391220,0ptp4l0-21swapper/708:45:007
111391220,0ptp4l0-21swapper/609:11:236
111391220,0ptp4l0-21swapper/608:12:556
111391220,0ptp4l0-21swapper/512:35:585
111391220,0ptp4l0-21swapper/512:28:295
111391220,0ptp4l0-21swapper/512:10:575
111391220,0ptp4l0-21swapper/512:03:215
111391220,0ptp4l0-21swapper/511:52:215
111391220,0ptp4l0-21swapper/511:52:205
111391220,0ptp4l0-21swapper/511:45:555
111391220,0ptp4l0-21swapper/510:55:195
111391220,0ptp4l0-21swapper/510:49:315
111391220,0ptp4l0-21swapper/510:31:395
111391220,0ptp4l0-21swapper/509:46:155
111391220,0ptp4l0-21swapper/509:35:355
111391220,0ptp4l0-21swapper/509:29:465
111391220,0ptp4l0-21swapper/509:20:575
111391220,0ptp4l0-21swapper/509:15:015
111391220,0ptp4l0-21swapper/509:15:005
111391220,0ptp4l0-21swapper/508:56:245
111391220,0ptp4l0-21swapper/508:27:275
111391220,0ptp4l0-21swapper/508:01:005
111391220,0ptp4l0-21swapper/507:35:185
111391220,0ptp4l0-21swapper/410:12:404
111391220,0ptp4l0-21swapper/410:02:374
111391220,0ptp4l0-21swapper/408:55:214
111391220,0ptp4l0-21swapper/407:40:144
111391220,0ptp4l0-21swapper/407:35:154
111391220,0ptp4l0-21swapper/311:04:113
111391220,0ptp4l0-21swapper/309:17:443
111391220,0ptp4l0-21swapper/309:17:433
111391220,0ptp4l0-21swapper/309:05:133
111391220,0ptp4l0-21swapper/308:05:133
111391220,0ptp4l0-21swapper/209:11:212
111391220,0ptp4l0-21swapper/208:25:182
111391220,0ptp4l0-21swapper/112:27:521
111391220,0ptp4l0-21swapper/112:23:461
111391220,0ptp4l0-21swapper/112:15:131
111391220,0ptp4l0-21swapper/112:03:341
111391220,0ptp4l0-21swapper/111:28:331
111391220,0ptp4l0-21swapper/110:39:321
111391220,0ptp4l0-21swapper/110:19:091
111391220,0ptp4l0-21swapper/109:55:431
111391220,0ptp4l0-21swapper/109:42:451
111391220,0ptp4l0-21swapper/108:58:071
111391220,0ptp4l0-21swapper/108:07:091
111391220,0ptp4l0-21swapper/107:48:231
111391220,0ptp4l0-21swapper/012:00:130
111391220,0ptp4l0-21swapper/011:10:120
111391220,0ptp4l0-21swapper/011:00:110
111391220,0ptp4l0-21swapper/010:46:040
111391220,0ptp4l0-21swapper/009:51:050
111391220,0ptp4l0-21swapper/009:30:010
111391220,0ptp4l0-21swapper/009:10:120
111391220,0ptp4l0-21swapper/009:00:010
111391220,0ptp4l0-21swapper/008:00:000
111391220,0ptp4l0-21swapper/007:40:120
111391220,0ptp4l0-21swapper/007:35:130
111391220,0ptp4l0-21swapper/007:25:150
111391210,1ptp4l22043-21sh09:44:566
111391210,0ptp4l0-21swapper/711:05:017
111391210,0ptp4l0-21swapper/710:02:247
111391210,0ptp4l0-21swapper/709:05:137
111391210,0ptp4l0-21swapper/608:36:016
111391210,0ptp4l0-21swapper/608:20:006
111391210,0ptp4l0-21swapper/511:41:215
111391210,0ptp4l0-21swapper/510:16:575
111391210,0ptp4l0-21swapper/509:42:045
111391210,0ptp4l0-21swapper/508:52:545
111391210,0ptp4l0-21swapper/408:47:564
111391210,0ptp4l0-21swapper/408:08:244
111391210,0ptp4l0-21swapper/407:50:004
111391210,0ptp4l0-21swapper/310:29:573
111391210,0ptp4l0-21swapper/309:25:133
111391210,0ptp4l0-21swapper/210:58:052
111391210,0ptp4l0-21swapper/210:53:442
111391210,0ptp4l0-21swapper/209:44:562
111391210,0ptp4l0-21swapper/209:18:322
111391210,0ptp4l0-21swapper/209:18:322
111391210,0ptp4l0-21swapper/112:30:481
111391210,0ptp4l0-21swapper/110:55:191
111391210,0ptp4l0-21swapper/110:20:541
111391210,0ptp4l0-21swapper/108:50:231
111391210,0ptp4l0-21swapper/008:32:170
111391210,0ptp4l0-21swapper/008:06:520
111391210,0ptp4l0-21swapper/007:50:150
111391200,0ptp4l0-21swapper/710:29:507
111391200,0ptp4l0-21swapper/710:19:147
111391200,0ptp4l0-21swapper/709:04:587
111391200,0ptp4l0-21swapper/707:21:537
111391200,0ptp4l0-21swapper/611:17:216
111391200,0ptp4l0-21swapper/607:51:186
111391200,0ptp4l0-21swapper/511:57:255
111391200,0ptp4l0-21swapper/511:57:245
111391200,0ptp4l0-21swapper/510:39:375
111391200,0ptp4l0-21swapper/508:14:245
111391200,0ptp4l0-21swapper/507:46:365
111391200,0ptp4l0-21swapper/310:02:203
111391200,0ptp4l0-21swapper/308:04:463
111391200,0ptp4l0-21swapper/211:47:202
111391200,0ptp4l0-21swapper/211:25:082
111391200,0ptp4l0-21swapper/211:17:202
111391200,0ptp4l0-21swapper/210:46:292
111391200,0ptp4l0-21swapper/207:53:262
111391200,0ptp4l0-21swapper/111:53:351
111391200,0ptp4l0-21swapper/111:53:351
111391200,0ptp4l0-21swapper/108:29:191
111391200,0ptp4l0-21swapper/107:28:261
111391190,0ptp4l0-21swapper/708:44:367
111391190,0ptp4l0-21swapper/607:38:186
111391190,0ptp4l0-21swapper/511:07:375
111391190,0ptp4l0-21swapper/508:43:255
111391190,0ptp4l0-21swapper/507:40:235
111391190,0ptp4l0-21swapper/507:12:185
111391190,0ptp4l0-21swapper/407:55:314
111391190,0ptp4l0-21swapper/211:33:462
207972180,0sleep70-21swapper/709:41:477
111391180,0ptp4l0-21swapper/610:53:456
111391180,0ptp4l0-21swapper/609:18:326
111391180,0ptp4l0-21swapper/609:18:316
111391180,0ptp4l0-21swapper/409:03:524
111391180,0ptp4l0-21swapper/312:14:123
111391180,0ptp4l0-21swapper/311:05:063
111391180,0ptp4l0-21swapper/111:36:381
111391180,0ptp4l0-21swapper/108:39:011
111391170,0ptp4l0-21swapper/611:47:566
111391170,0ptp4l0-21swapper/611:25:086
111391170,0ptp4l0-21swapper/310:19:163
111391170,0ptp4l0-21swapper/108:02:041
255842160,1sleep557-21ksoftirqd/509:05:155
111391160,0ptp4l0-21swapper/610:58:116
111391160,0ptp4l0-21swapper/608:44:286
111391160,0ptp4l0-21swapper/608:34:456
111391160,0ptp4l0-21swapper/508:49:395
111391160,0ptp4l0-21swapper/508:39:415
111391160,0ptp4l0-21swapper/507:30:295
111391160,0ptp4l0-21swapper/307:21:263
111391160,0ptp4l0-21swapper/208:12:462
111391160,0ptp4l0-21swapper/108:41:051
111391160,0ptp4l0-21swapper/108:23:251
111391160,0ptp4l0-21swapper/108:15:361
111391160,0ptp4l0-21swapper/008:47:580
111391150,0ptp4l0-21swapper/708:55:577
111391150,0ptp4l0-21swapper/708:04:177
111391150,0ptp4l0-21swapper/608:08:046
111391150,0ptp4l0-21swapper/607:34:086
111391150,0ptp4l0-21swapper/607:24:446
111391150,0ptp4l0-21swapper/511:22:175
111391150,0ptp4l0-21swapper/508:21:015
111391150,0ptp4l0-21swapper/508:15:335
111391150,0ptp4l0-21swapper/508:07:235
111391150,0ptp4l0-21swapper/507:26:205
111391150,0ptp4l0-21swapper/308:55:523
111391150,0ptp4l0-21swapper/308:44:403
111391150,0ptp4l0-21swapper/208:42:232
111391150,0ptp4l0-21swapper/208:38:222
111391150,0ptp4l0-21swapper/207:38:172
111391150,0ptp4l0-21swapper/207:24:452
111391150,0ptp4l0-21swapper/109:05:281
111391150,0ptp4l0-21swapper/107:23:531
111391140,0ptp4l0-21swapper/608:19:596
111391140,0ptp4l0-21swapper/507:23:535
111391140,0ptp4l0-21swapper/208:32:242
111391140,0ptp4l0-21swapper/208:20:102
111391140,0ptp4l0-21swapper/208:19:592
111391140,0ptp4l0-21swapper/208:08:042
111391140,0ptp4l0-21swapper/207:34:082
111391140,0ptp4l0-21swapper/207:13:582
3932991310,1cyclictest3677-21munin-run10:45:003
392699130,10cyclictest121rcu_preempt12:07:482
111391130,0ptp4l0-21swapper/209:58:132
393299121,10cyclictest29674-21sh09:54:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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