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2026-09-20 - 18:04

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 20, 2026 12:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391620,30ptp4l0-21swapper/007:07:050
2960326050,6sleep70-21swapper/707:05:347
111391590,3ptp4l0-21swapper/507:05:235
219982580,1sleep557-21ksoftirqd/512:19:005
1881915734,7phc2sys0-21swapper/107:06:061
197892560,0sleep20-21swapper/209:54:212
2970925443,6sleep40-21swapper/407:07:004
2961625343,6sleep20-21swapper/207:05:462
2982125040,6sleep60-21swapper/607:08:226
2968124837,7sleep30-21swapper/307:06:353
49412460,0sleep30-21swapper/311:05:193
111391330,0ptp4l0-21swapper/007:55:200
111391320,0ptp4l0-21swapper/009:15:570
111391310,0ptp4l0-21swapper/508:30:155
111391310,0ptp4l0-21swapper/410:54:004
111391310,0ptp4l0-21swapper/410:54:004
111391310,0ptp4l0-21swapper/408:05:184
111391310,0ptp4l0-21swapper/407:45:164
111391300,5ptp4l0-21swapper/412:20:144
111391300,0ptp4l0-21swapper/512:24:035
111391300,0ptp4l0-21swapper/511:38:275
111391300,0ptp4l0-21swapper/412:00:104
111391300,0ptp4l0-21swapper/410:34:024
111391300,0ptp4l0-21swapper/409:42:184
111391300,0ptp4l0-21swapper/409:15:484
111391300,0ptp4l0-21swapper/012:06:070
111391300,0ptp4l0-21swapper/011:50:160
111391300,0ptp4l0-21swapper/011:05:160
111391290,1ptp4l24727-21ssh10:47:430
111391290,0ptp4l0-21swapper/509:24:215
111391290,0ptp4l0-21swapper/412:27:034
111391290,0ptp4l0-21swapper/411:15:044
111391290,0ptp4l0-21swapper/411:14:494
111391290,0ptp4l0-21swapper/410:46:114
111391290,0ptp4l0-21swapper/310:10:043
111391290,0ptp4l0-21swapper/209:28:182
111391290,0ptp4l0-21swapper/011:47:430
111391290,0ptp4l0-21swapper/010:36:160
111391290,0ptp4l0-21swapper/009:50:050
111391290,0ptp4l0-21swapper/009:39:220
111391280,0ptp4l0-21swapper/609:28:136
111391280,0ptp4l0-21swapper/410:56:004
111391280,0ptp4l0-21swapper/310:22:293
111391280,0ptp4l0-21swapper/011:11:430
111391280,0ptp4l0-21swapper/010:58:440
111391280,0ptp4l0-21swapper/009:57:000
111391270,3ptp4l101ktimersoftd/007:45:140
111391270,1ptp4l20974-21diskmemload11:00:170
111391270,0ptp4l0-21swapper/412:34:194
111391270,0ptp4l0-21swapper/412:15:464
111391270,0ptp4l0-21swapper/411:22:094
111391270,0ptp4l0-21swapper/410:39:014
111391270,0ptp4l0-21swapper/312:00:533
111391270,0ptp4l0-21swapper/011:21:410
111391270,0ptp4l0-21swapper/008:45:150
111391260,4ptp4l0-21swapper/510:40:355
111391260,2ptp4l0-21swapper/412:05:504
111391260,0ptp4l0-21swapper/712:08:597
111391260,0ptp4l0-21swapper/512:30:555
111391260,0ptp4l0-21swapper/511:52:335
111391260,0ptp4l0-21swapper/412:12:204
111391260,0ptp4l0-21swapper/410:01:364
111391260,0ptp4l0-21swapper/409:45:514
111391260,0ptp4l0-21swapper/409:38:334
111391260,0ptp4l0-21swapper/409:10:214
111391260,0ptp4l0-21swapper/311:54:053
111391260,0ptp4l0-21swapper/012:35:160
111391260,0ptp4l0-21swapper/012:02:590
111391260,0ptp4l0-21swapper/010:09:010
111391260,0ptp4l0-21swapper/010:01:360
111391260,0ptp4l0-21swapper/009:46:080
111391260,0ptp4l0-21swapper/009:41:030
111391260,0ptp4l0-21swapper/009:31:220
111391250,3ptp4l21141-21ssh10:42:280
111391250,1ptp4l27736-21/usr/sbin/munin11:40:114
111391250,1ptp4l17704-21fw_forwarded_lo11:25:121
111391250,0ptp4l0-21swapper/608:10:216
111391250,0ptp4l0-21swapper/510:30:375
111391250,0ptp4l0-21swapper/510:25:015
111391250,0ptp4l0-21swapper/510:12:485
111391250,0ptp4l0-21swapper/410:29:124
111391250,0ptp4l0-21swapper/410:18:554
111391250,0ptp4l0-21swapper/409:30:524
111391250,0ptp4l0-21swapper/409:29:154
111391250,0ptp4l0-21swapper/408:42:314
111391250,0ptp4l0-21swapper/408:38:524
111391250,0ptp4l0-21swapper/310:43:453
111391250,0ptp4l0-21swapper/211:49:462
111391250,0ptp4l0-21swapper/109:36:521
111391250,0ptp4l0-21swapper/012:20:100
111391250,0ptp4l0-21swapper/011:40:010
111391250,0ptp4l0-21swapper/010:18:060
111391250,0ptp4l0-21swapper/009:25:110
111391250,0ptp4l0-21swapper/008:25:010
111391240,1ptp4l888-21cpuspeed_turbos08:25:124
111391240,1ptp4l7843-21/usr/sbin/munin07:30:174
111391240,1ptp4l647-21munin-node07:15:014
111391240,1ptp4l31392-21diskstats11:45:134
111391240,1ptp4l25917-21cut12:25:001
111391240,1ptp4l25476-21awk10:50:005
111391240,1ptp4l18328-21strings11:25:175
111391240,1ptp4l12491-21cpu07:40:101
111391240,0ptp4l33-21ksoftirqd/210:35:222
111391240,0ptp4l0-21swapper/712:01:137
111391240,0ptp4l0-21swapper/710:05:177
111391240,0ptp4l0-21swapper/609:50:316
111391240,0ptp4l0-21swapper/608:55:206
111391240,0ptp4l0-21swapper/512:25:165
111391240,0ptp4l0-21swapper/509:57:275
111391240,0ptp4l0-21swapper/412:35:044
111391240,0ptp4l0-21swapper/411:01:224
111391240,0ptp4l0-21swapper/410:12:254
111391240,0ptp4l0-21swapper/408:01:164
111391240,0ptp4l0-21swapper/407:35:154
111391240,0ptp4l0-21swapper/310:05:343
111391240,0ptp4l0-21swapper/211:19:382
111391240,0ptp4l0-21swapper/209:59:422
111391240,0ptp4l0-21swapper/112:30:151
111391240,0ptp4l0-21swapper/108:30:201
111391240,0ptp4l0-21swapper/012:32:270
111391240,0ptp4l0-21swapper/012:13:160
111391240,0ptp4l0-21swapper/010:30:130
111391240,0ptp4l0-21swapper/010:25:130
111391240,0ptp4l0-21swapper/009:13:270
111391240,0ptp4l0-21swapper/008:40:210
111391230,3ptp4l0-21swapper/710:22:017
111391230,3ptp4l0-21swapper/007:53:420
111391230,1ptp4l5597-21sh08:35:130
111391230,1ptp4l29226-21cat08:15:171
111391230,1ptp4l29226-21cat08:15:161
111391230,1ptp4l26454-21/usr/sbin/munin08:10:144
111391230,0ptp4l16384-21munin-run09:00:005
111391230,0ptp4l0-21swapper/712:31:227
111391230,0ptp4l0-21swapper/712:10:247
111391230,0ptp4l0-21swapper/611:07:416
111391230,0ptp4l0-21swapper/610:35:196
111391230,0ptp4l0-21swapper/511:30:175
111391230,0ptp4l0-21swapper/511:06:465
111391230,0ptp4l0-21swapper/508:05:135
111391230,0ptp4l0-21swapper/507:40:155
111391230,0ptp4l0-21swapper/507:20:135
111391230,0ptp4l0-21swapper/507:12:495
111391230,0ptp4l0-21swapper/411:37:104
111391230,0ptp4l0-21swapper/411:05:174
111391230,0ptp4l0-21swapper/409:55:174
111391230,0ptp4l0-21swapper/409:00:134
111391230,0ptp4l0-21swapper/408:50:114
111391230,0ptp4l0-21swapper/408:45:214
111391230,0ptp4l0-21swapper/408:32:024
111391230,0ptp4l0-21swapper/408:20:124
111391230,0ptp4l0-21swapper/407:55:174
111391230,0ptp4l0-21swapper/407:50:124
111391230,0ptp4l0-21swapper/310:17:133
111391230,0ptp4l0-21swapper/112:25:121
111391230,0ptp4l0-21swapper/112:02:391
111391230,0ptp4l0-21swapper/111:35:151
111391230,0ptp4l0-21swapper/111:30:161
111391230,0ptp4l0-21swapper/110:40:201
111391230,0ptp4l0-21swapper/110:30:131
111391230,0ptp4l0-21swapper/109:54:061
111391230,0ptp4l0-21swapper/109:48:031
111391230,0ptp4l0-21swapper/109:20:151
111391230,0ptp4l0-21swapper/109:18:561
111391230,0ptp4l0-21swapper/108:50:001
111391230,0ptp4l0-21swapper/107:25:161
111391230,0ptp4l0-21swapper/107:20:131
111391230,0ptp4l0-21swapper/012:25:490
111391230,0ptp4l0-21swapper/012:15:590
111391230,0ptp4l0-21swapper/011:55:120
111391230,0ptp4l0-21swapper/011:15:190
111391230,0ptp4l0-21swapper/009:22:520
111391230,0ptp4l0-21swapper/009:05:110
111391230,0ptp4l0-21swapper/008:28:440
111391230,0ptp4l0-21swapper/008:05:160
111391230,0ptp4l0-21swapper/007:44:360
111391230,0ptp4l0-21swapper/007:30:080
111391230,0ptp4l0-21swapper/007:30:000
8642220,0sleep70-21swapper/712:35:127
3023599220,10cyclictest0-21swapper/407:10:154
111391220,1ptp4l26369-21ssh11:37:006
111391220,0ptp4l0-21swapper/710:28:467
111391220,0ptp4l0-21swapper/710:10:127
111391220,0ptp4l0-21swapper/709:32:567
111391220,0ptp4l0-21swapper/707:35:227
111391220,0ptp4l0-21swapper/611:40:236
111391220,0ptp4l0-21swapper/611:33:566
111391220,0ptp4l0-21swapper/609:32:376
111391220,0ptp4l0-21swapper/511:58:555
111391220,0ptp4l0-21swapper/511:20:185
111391220,0ptp4l0-21swapper/511:01:295
111391220,0ptp4l0-21swapper/510:50:215
111391220,0ptp4l0-21swapper/510:50:205
111391220,0ptp4l0-21swapper/510:37:435
111391220,0ptp4l0-21swapper/509:51:325
111391220,0ptp4l0-21swapper/509:35:195
111391220,0ptp4l0-21swapper/509:18:575
111391220,0ptp4l0-21swapper/509:11:415
111391220,0ptp4l0-21swapper/508:15:145
111391220,0ptp4l0-21swapper/508:15:135
111391220,0ptp4l0-21swapper/507:15:195
111391220,0ptp4l0-21swapper/411:56:134
111391220,0ptp4l0-21swapper/411:50:154
111391220,0ptp4l0-21swapper/411:26:064
111391220,0ptp4l0-21swapper/410:42:244
111391220,0ptp4l0-21swapper/409:50:124
111391220,0ptp4l0-21swapper/409:21:194
111391220,0ptp4l0-21swapper/409:05:134
111391220,0ptp4l0-21swapper/408:55:164
111391220,0ptp4l0-21swapper/407:25:124
111391220,0ptp4l0-21swapper/312:10:013
111391220,0ptp4l0-21swapper/312:09:493
111391220,0ptp4l0-21swapper/310:28:443
111391220,0ptp4l0-21swapper/310:05:013
111391220,0ptp4l0-21swapper/212:26:522
111391220,0ptp4l0-21swapper/209:30:202
111391220,0ptp4l0-21swapper/209:17:252
111391220,0ptp4l0-21swapper/208:55:182
111391220,0ptp4l0-21swapper/208:10:192
111391220,0ptp4l0-21swapper/112:36:551
111391220,0ptp4l0-21swapper/112:16:101
111391220,0ptp4l0-21swapper/112:12:091
111391220,0ptp4l0-21swapper/111:59:091
111391220,0ptp4l0-21swapper/111:50:011
111391220,0ptp4l0-21swapper/111:23:171
111391220,0ptp4l0-21swapper/111:10:021
111391220,0ptp4l0-21swapper/111:07:231
111391220,0ptp4l0-21swapper/111:02:131
111391220,0ptp4l0-21swapper/110:55:111
111391220,0ptp4l0-21swapper/110:50:071
111391220,0ptp4l0-21swapper/110:50:061
111391220,0ptp4l0-21swapper/110:37:451
111391220,0ptp4l0-21swapper/109:57:581
111391220,0ptp4l0-21swapper/108:05:111
111391220,0ptp4l0-21swapper/107:15:131
111391220,0ptp4l0-21swapper/011:40:190
111391220,0ptp4l0-21swapper/011:25:110
111391220,0ptp4l0-21swapper/010:52:400
111391220,0ptp4l0-21swapper/010:52:400
111391220,0ptp4l0-21swapper/010:24:180
111391220,0ptp4l0-21swapper/009:00:220
111391220,0ptp4l0-21swapper/008:55:130
111391220,0ptp4l0-21swapper/008:50:120
111391220,0ptp4l0-21swapper/008:00:150
111391220,0ptp4l0-21swapper/007:37:400
111391210,0ptp4l0-21swapper/711:54:067
111391210,0ptp4l0-21swapper/710:43:477
111391210,0ptp4l0-21swapper/710:16:097
111391210,0ptp4l0-21swapper/710:04:537
111391210,0ptp4l0-21swapper/709:26:237
111391210,0ptp4l0-21swapper/612:11:116
111391210,0ptp4l0-21swapper/611:49:486
111391210,0ptp4l0-21swapper/611:00:546
111391210,0ptp4l0-21swapper/609:44:136
111391210,0ptp4l0-21swapper/609:17:286
111391210,0ptp4l0-21swapper/512:38:165
111391210,0ptp4l0-21swapper/512:02:405
111391210,0ptp4l0-21swapper/511:18:595
111391210,0ptp4l0-21swapper/510:55:155
111391210,0ptp4l0-21swapper/510:25:495
111391210,0ptp4l0-21swapper/510:08:085
111391210,0ptp4l0-21swapper/509:48:145
111391210,0ptp4l0-21swapper/508:51:525
111391210,0ptp4l0-21swapper/407:41:524
111391210,0ptp4l0-21swapper/312:31:133
111391210,0ptp4l0-21swapper/310:39:053
111391210,0ptp4l0-21swapper/309:49:113
111391210,0ptp4l0-21swapper/309:33:063
111391210,0ptp4l0-21swapper/211:11:062
111391210,0ptp4l0-21swapper/211:07:382
111391210,0ptp4l0-21swapper/211:00:502
111391210,0ptp4l0-21swapper/209:37:142
111391210,0ptp4l0-21swapper/111:47:201
111391210,0ptp4l0-21swapper/111:42:591
111391210,0ptp4l0-21swapper/111:18:491
111391210,0ptp4l0-21swapper/110:25:131
111391210,0ptp4l0-21swapper/110:24:191
111391210,0ptp4l0-21swapper/110:13:421
111391210,0ptp4l0-21swapper/110:08:301
111391210,0ptp4l0-21swapper/109:34:531
111391210,0ptp4l0-21swapper/010:12:020
111391210,0ptp4l0-21swapper/008:10:230
111391210,0ptp4l0-21swapper/007:15:010
3024399200,11cyclictest0-21swapper/507:39:275
111391200,2ptp4l0-21swapper/508:03:415
111391200,0ptp4l0-21swapper/710:39:077
111391200,0ptp4l0-21swapper/612:37:076
111391200,0ptp4l0-21swapper/611:17:596
111391200,0ptp4l0-21swapper/610:28:546
111391200,0ptp4l0-21swapper/609:59:396
111391200,0ptp4l0-21swapper/512:12:095
111391200,0ptp4l0-21swapper/508:37:185
111391200,0ptp4l0-21swapper/410:24:054
111391200,0ptp4l0-21swapper/407:22:004
111391200,0ptp4l0-21swapper/309:25:573
111391200,0ptp4l0-21swapper/308:35:333
111391200,0ptp4l0-21swapper/307:35:223
111391200,0ptp4l0-21swapper/211:40:242
111391200,0ptp4l0-21swapper/209:44:112
111391200,0ptp4l0-21swapper/110:49:441
111391200,0ptp4l0-21swapper/109:13:311
111391200,0ptp4l0-21swapper/108:22:181
111391200,0ptp4l0-21swapper/011:31:280
30243991913,5cyclictest23869-21acpi10:00:115
111391190,2ptp4l401ktimersoftd/308:33:013
111391190,0ptp4l0-21swapper/612:34:136
111391190,0ptp4l0-21swapper/612:26:486
111391190,0ptp4l0-21swapper/611:11:016
111391190,0ptp4l0-21swapper/511:43:545
111391190,0ptp4l0-21swapper/509:34:515
111391190,0ptp4l0-21swapper/411:30:114
111391190,0ptp4l0-21swapper/212:37:052
111391190,0ptp4l0-21swapper/211:57:442
111391190,0ptp4l0-21swapper/211:33:442
111391190,0ptp4l0-21swapper/110:15:391
111391190,0ptp4l0-21swapper/108:04:181
111391190,0ptp4l0-21swapper/107:11:191
111391190,0ptp4l0-21swapper/008:16:560
111391190,0ptp4l0-21swapper/008:16:560
111391180,0ptp4l0-21swapper/709:49:137
111391180,0ptp4l0-21swapper/609:23:496
111391180,0ptp4l0-21swapper/511:47:185
111391180,0ptp4l0-21swapper/511:12:025
111391180,0ptp4l0-21swapper/509:43:545
111391180,0ptp4l0-21swapper/509:03:135
111391180,0ptp4l0-21swapper/508:29:565
111391180,0ptp4l0-21swapper/410:07:524
111391180,0ptp4l0-21swapper/109:43:501
111391180,0ptp4l0-21swapper/108:14:551
111391180,0ptp4l0-21swapper/008:30:400
111391180,0ptp4l0-21swapper/007:23:190
3024399170,7cyclictest0-21swapper/508:14:095
3024399170,6cyclictest0-21swapper/507:47:055
111391170,1ptp4l33-21ksoftirqd/210:30:072
111391170,0ptp4l0-21swapper/611:57:436
111391170,0ptp4l0-21swapper/610:53:176
111391170,0ptp4l0-21swapper/610:53:176
111391170,0ptp4l0-21swapper/609:37:166
111391170,0ptp4l0-21swapper/310:32:443
111391170,0ptp4l0-21swapper/212:34:172
111391170,0ptp4l0-21swapper/209:23:492
111391170,0ptp4l0-21swapper/007:14:200
3024399160,9cyclictest0-21swapper/510:19:565
111391160,0ptp4l0-21swapper/612:03:096
111391160,0ptp4l0-21swapper/608:06:186
111391160,0ptp4l0-21swapper/408:16:154
111391160,0ptp4l0-21swapper/408:16:154
111391160,0ptp4l0-21swapper/212:11:122
111391160,0ptp4l0-21swapper/212:03:102
111391160,0ptp4l0-21swapper/210:28:572
111391160,0ptp4l0-21swapper/208:05:432
111391160,0ptp4l0-21swapper/112:05:241
111391160,0ptp4l0-21swapper/109:25:231
111391160,0ptp4l0-21swapper/109:09:321
111391160,0ptp4l0-21swapper/109:00:421
111391160,0ptp4l0-21swapper/108:59:271
111391160,0ptp4l0-21swapper/108:53:351
111391160,0ptp4l0-21swapper/108:26:551
111391160,0ptp4l0-21swapper/107:55:041
111391160,0ptp4l0-21swapper/107:50:241
30248991513,0cyclictest83192irq/26-enp1s0-T10:16:426
111391150,0ptp4l0-21swapper/708:35:257
111391150,0ptp4l0-21swapper/707:30:337
111391150,0ptp4l0-21swapper/610:30:086
111391150,0ptp4l0-21swapper/609:08:006
111391150,0ptp4l0-21swapper/609:01:036
111391150,0ptp4l0-21swapper/608:49:266
111391150,0ptp4l0-21swapper/608:20:086
111391150,0ptp4l0-21swapper/607:54:126
111391150,0ptp4l0-21swapper/607:49:376
111391150,0ptp4l0-21swapper/512:05:255
111391150,0ptp4l0-21swapper/508:46:525
111391150,0ptp4l0-21swapper/508:20:405
111391150,0ptp4l0-21swapper/507:55:105
111391150,0ptp4l0-21swapper/507:50:265
111391150,0ptp4l0-21swapper/507:33:575
111391150,0ptp4l0-21swapper/507:25:415
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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