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2026-04-25 - 17:33

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 Sat Apr 25, 2026 12:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11792930,2sleep41500899cyclictest07:47:494
111391620,26ptp4l0-21swapper/307:05:163
1442526050,6sleep20-21swapper/207:06:152
1460325948,6sleep70-21swapper/707:08:367
1881915634,7phc2sys0-21swapper/507:05:485
111391540,3ptp4l481ktimersoftd/407:05:134
1881915039,7phc2sys0-21swapper/107:09:451
1467924837,6sleep00-21swapper/007:09:340
1280624635,7sleep60-21swapper/607:05:066
111391400,0ptp4l0-21swapper/411:53:254
111391330,0ptp4l0-21swapper/409:20:124
111391320,2ptp4l9406-21sh10:37:454
111391320,0ptp4l0-21swapper/412:12:064
111391310,4ptp4l8952-21fw_forwarded_lo08:05:144
111391310,0ptp4l0-21swapper/409:32:204
111391300,1ptp4l16714-21sh12:11:330
111391300,0ptp4l0-21swapper/412:38:524
111391300,0ptp4l0-21swapper/411:15:234
111391300,0ptp4l0-21swapper/111:31:461
111391300,0ptp4l0-21swapper/010:42:350
111391300,0ptp4l0-21swapper/009:30:300
111391290,0ptp4l0-21swapper/412:04:264
111391290,0ptp4l0-21swapper/412:04:264
111391290,0ptp4l0-21swapper/411:32:114
111391290,0ptp4l0-21swapper/410:53:584
111391290,0ptp4l0-21swapper/410:43:514
111391290,0ptp4l0-21swapper/410:18:284
111391290,0ptp4l0-21swapper/409:48:104
111391290,0ptp4l0-21swapper/409:25:074
111391290,0ptp4l0-21swapper/409:25:064
111391290,0ptp4l0-21swapper/110:49:001
111391290,0ptp4l0-21swapper/108:14:431
111391290,0ptp4l0-21swapper/012:36:120
111391290,0ptp4l0-21swapper/011:31:550
111391290,0ptp4l0-21swapper/011:01:050
111391290,0ptp4l0-21swapper/010:13:250
111391280,0ptp4l0-21swapper/411:56:514
111391280,0ptp4l0-21swapper/410:57:344
111391280,0ptp4l0-21swapper/409:37:234
111391280,0ptp4l0-21swapper/407:43:434
111391280,0ptp4l0-21swapper/309:28:223
111391280,0ptp4l0-21swapper/309:28:223
111391280,0ptp4l0-21swapper/010:25:160
111391280,0ptp4l0-21swapper/010:06:040
111391280,0ptp4l0-21swapper/010:01:450
111391280,0ptp4l0-21swapper/009:57:370
111391280,0ptp4l0-21swapper/009:53:100
111391280,0ptp4l0-21swapper/007:55:130
111391270,4ptp4l0-21swapper/011:20:400
111391270,0ptp4l0-21swapper/512:17:375
111391270,0ptp4l0-21swapper/412:30:574
111391270,0ptp4l0-21swapper/411:02:264
111391270,0ptp4l0-21swapper/410:46:134
111391270,0ptp4l0-21swapper/410:34:144
111391270,0ptp4l0-21swapper/410:09:514
111391270,0ptp4l0-21swapper/409:57:244
111391270,0ptp4l0-21swapper/409:53:134
111391270,0ptp4l0-21swapper/409:17:064
111391270,0ptp4l0-21swapper/012:15:470
111391270,0ptp4l0-21swapper/012:04:030
111391270,0ptp4l0-21swapper/012:04:020
111391270,0ptp4l0-21swapper/011:41:180
111391270,0ptp4l0-21swapper/010:58:070
111391270,0ptp4l0-21swapper/010:20:050
111391270,0ptp4l0-21swapper/009:39:040
111391270,0ptp4l0-21swapper/009:29:440
111391270,0ptp4l0-21swapper/009:29:440
111391270,0ptp4l0-21swapper/009:10:390
111391260,0ptp4l0-21swapper/511:02:055
111391260,0ptp4l0-21swapper/509:37:595
111391260,0ptp4l0-21swapper/412:28:484
111391260,0ptp4l0-21swapper/411:40:484
111391260,0ptp4l0-21swapper/411:35:144
111391260,0ptp4l0-21swapper/112:15:021
111391260,0ptp4l0-21swapper/111:24:201
111391260,0ptp4l0-21swapper/110:13:521
111391260,0ptp4l0-21swapper/011:17:330
111391250,0ptp4l0-21swapper/611:44:026
111391250,0ptp4l0-21swapper/511:50:165
111391250,0ptp4l0-21swapper/510:47:495
111391250,0ptp4l0-21swapper/509:45:005
111391250,0ptp4l0-21swapper/412:20:254
111391250,0ptp4l0-21swapper/411:27:354
111391250,0ptp4l0-21swapper/408:57:414
111391250,0ptp4l0-21swapper/408:30:004
111391250,0ptp4l0-21swapper/408:10:214
111391250,0ptp4l0-21swapper/109:55:211
111391250,0ptp4l0-21swapper/012:29:530
111391250,0ptp4l0-21swapper/012:20:190
111391250,0ptp4l0-21swapper/011:49:520
111391250,0ptp4l0-21swapper/011:15:010
111391250,0ptp4l0-21swapper/009:41:200
111391250,0ptp4l0-21swapper/009:15:200
111391250,0ptp4l0-21swapper/008:05:160
111391250,0ptp4l0-21swapper/007:35:200
111391240,2ptp4l0-21swapper/511:46:025
111391240,1ptp4l8664-21latency_hist09:55:015
111391240,1ptp4l30255-21open_inodes08:50:174
111391240,1ptp4l1769-21/usr/sbin/munin09:00:110
111391240,0ptp4l0-21swapper/607:55:146
111391240,0ptp4l0-21swapper/511:26:555
111391240,0ptp4l0-21swapper/510:30:085
111391240,0ptp4l0-21swapper/509:34:395
111391240,0ptp4l0-21swapper/509:10:195
111391240,0ptp4l0-21swapper/412:16:234
111391240,0ptp4l0-21swapper/412:07:064
111391240,0ptp4l0-21swapper/412:07:064
111391240,0ptp4l0-21swapper/410:10:204
111391240,0ptp4l0-21swapper/409:13:124
111391240,0ptp4l0-21swapper/409:00:174
111391240,0ptp4l0-21swapper/110:15:201
111391240,0ptp4l0-21swapper/109:54:541
111391240,0ptp4l0-21swapper/011:36:230
111391240,0ptp4l0-21swapper/010:54:240
111391240,0ptp4l0-21swapper/010:45:180
111391240,0ptp4l0-21swapper/010:36:530
111391240,0ptp4l0-21swapper/009:24:100
111391240,0ptp4l0-21swapper/008:20:210
111391240,0ptp4l0-21swapper/007:25:140
111391230,4ptp4l481ktimersoftd/411:12:124
111391230,1ptp4l5745-21diskmemload10:00:457
111391230,1ptp4l5382-21basename11:15:151
111391230,1ptp4l3282-21grep11:55:120
111391230,1ptp4l1061-21snmpd07:20:200
111391230,0ptp4l7887-21ssh09:10:361
111391230,0ptp4l10451-21unixbench_singl11:20:235
111391230,0ptp4l0-21swapper/712:25:157
111391230,0ptp4l0-21swapper/709:42:157
111391230,0ptp4l0-21swapper/709:27:097
111391230,0ptp4l0-21swapper/709:27:097
111391230,0ptp4l0-21swapper/707:10:347
111391230,0ptp4l0-21swapper/512:24:545
111391230,0ptp4l0-21swapper/512:10:165
111391230,0ptp4l0-21swapper/511:59:305
111391230,0ptp4l0-21swapper/511:15:165
111391230,0ptp4l0-21swapper/511:09:535
111391230,0ptp4l0-21swapper/510:35:405
111391230,0ptp4l0-21swapper/510:14:005
111391230,0ptp4l0-21swapper/509:55:135
111391230,0ptp4l0-21swapper/509:49:375
111391230,0ptp4l0-21swapper/509:21:415
111391230,0ptp4l0-21swapper/509:19:255
111391230,0ptp4l0-21swapper/508:15:125
111391230,0ptp4l0-21swapper/507:50:125
111391230,0ptp4l0-21swapper/411:47:344
111391230,0ptp4l0-21swapper/411:20:314
111391230,0ptp4l0-21swapper/411:05:154
111391230,0ptp4l0-21swapper/410:27:254
111391230,0ptp4l0-21swapper/410:20:114
111391230,0ptp4l0-21swapper/410:00:594
111391230,0ptp4l0-21swapper/409:41:114
111391230,0ptp4l0-21swapper/408:45:124
111391230,0ptp4l0-21swapper/408:40:124
111391230,0ptp4l0-21swapper/408:35:204
111391230,0ptp4l0-21swapper/408:25:204
111391230,0ptp4l0-21swapper/407:50:434
111391230,0ptp4l0-21swapper/407:35:124
111391230,0ptp4l0-21swapper/407:30:184
111391230,0ptp4l0-21swapper/407:25:204
111391230,0ptp4l0-21swapper/407:20:124
111391230,0ptp4l0-21swapper/407:15:054
111391230,0ptp4l0-21swapper/312:25:153
111391230,0ptp4l0-21swapper/310:00:133
111391230,0ptp4l0-21swapper/307:11:563
111391230,0ptp4l0-21swapper/208:45:212
111391230,0ptp4l0-21swapper/111:03:561
111391230,0ptp4l0-21swapper/110:52:511
111391230,0ptp4l0-21swapper/110:30:131
111391230,0ptp4l0-21swapper/110:25:131
111391230,0ptp4l0-21swapper/110:04:551
111391230,0ptp4l0-21swapper/109:49:151
111391230,0ptp4l0-21swapper/109:34:211
111391230,0ptp4l0-21swapper/107:50:141
111391230,0ptp4l0-21swapper/107:30:071
111391230,0ptp4l0-21swapper/012:30:180
111391230,0ptp4l0-21swapper/012:06:330
111391230,0ptp4l0-21swapper/012:06:330
111391230,0ptp4l0-21swapper/011:53:500
111391230,0ptp4l0-21swapper/011:26:330
111391230,0ptp4l0-21swapper/010:19:010
111391230,0ptp4l0-21swapper/009:45:150
111391230,0ptp4l0-21swapper/008:45:210
111391230,0ptp4l0-21swapper/008:25:160
111391230,0ptp4l0-21swapper/007:30:140
111391220,0ptp4l5745-21diskmemload12:26:245
111391220,0ptp4l13029-21df11:25:121
111391220,0ptp4l0-21swapper/610:26:296
111391220,0ptp4l0-21swapper/511:43:465
111391220,0ptp4l0-21swapper/511:36:565
111391220,0ptp4l0-21swapper/511:30:445
111391220,0ptp4l0-21swapper/510:23:005
111391220,0ptp4l0-21swapper/510:15:215
111391220,0ptp4l0-21swapper/510:03:515
111391220,0ptp4l0-21swapper/509:25:115
111391220,0ptp4l0-21swapper/509:25:115
111391220,0ptp4l0-21swapper/507:13:225
111391220,0ptp4l0-21swapper/408:20:194
111391220,0ptp4l0-21swapper/408:00:194
111391220,0ptp4l0-21swapper/407:55:214
111391220,0ptp4l0-21swapper/309:42:143
111391220,0ptp4l0-21swapper/212:06:142
111391220,0ptp4l0-21swapper/212:06:142
111391220,0ptp4l0-21swapper/210:17:342
111391220,0ptp4l0-21swapper/112:38:401
111391220,0ptp4l0-21swapper/112:30:311
111391220,0ptp4l0-21swapper/112:25:031
111391220,0ptp4l0-21swapper/112:22:371
111391220,0ptp4l0-21swapper/112:10:111
111391220,0ptp4l0-21swapper/112:09:411
111391220,0ptp4l0-21swapper/112:09:411
111391220,0ptp4l0-21swapper/111:50:141
111391220,0ptp4l0-21swapper/111:46:041
111391220,0ptp4l0-21swapper/111:42:121
111391220,0ptp4l0-21swapper/111:35:391
111391220,0ptp4l0-21swapper/111:12:271
111391220,0ptp4l0-21swapper/111:05:491
111391220,0ptp4l0-21swapper/110:57:111
111391220,0ptp4l0-21swapper/110:35:121
111391220,0ptp4l0-21swapper/109:43:401
111391220,0ptp4l0-21swapper/109:35:011
111391220,0ptp4l0-21swapper/109:21:421
111391220,0ptp4l0-21swapper/109:18:521
111391220,0ptp4l0-21swapper/109:05:001
111391220,0ptp4l0-21swapper/108:55:421
111391220,0ptp4l0-21swapper/108:35:141
111391220,0ptp4l0-21swapper/108:00:131
111391220,0ptp4l0-21swapper/107:24:091
111391220,0ptp4l0-21swapper/011:05:160
111391220,0ptp4l0-21swapper/010:30:120
111391220,0ptp4l0-21swapper/009:05:130
111391220,0ptp4l0-21swapper/008:55:000
111391220,0ptp4l0-21swapper/008:50:280
111391220,0ptp4l0-21swapper/008:40:110
111391220,0ptp4l0-21swapper/008:35:180
111391220,0ptp4l0-21swapper/008:10:200
111391220,0ptp4l0-21swapper/007:53:410
111391220,0ptp4l0-21swapper/007:45:140
111391220,0ptp4l0-21swapper/007:40:190
111391220,0ptp4l0-21swapper/007:15:160
111391210,3ptp4l0-21swapper/007:14:010
111391210,0ptp4l0-21swapper/512:36:385
111391210,0ptp4l0-21swapper/512:09:095
111391210,0ptp4l0-21swapper/512:09:095
111391210,0ptp4l0-21swapper/511:12:245
111391210,0ptp4l0-21swapper/510:52:385
111391210,0ptp4l0-21swapper/510:25:145
111391210,0ptp4l0-21swapper/510:05:215
111391210,0ptp4l0-21swapper/507:40:435
111391210,0ptp4l0-21swapper/507:24:025
111391210,0ptp4l0-21swapper/409:05:154
111391210,0ptp4l0-21swapper/407:13:414
111391210,0ptp4l0-21swapper/309:59:413
111391210,0ptp4l0-21swapper/308:46:423
111391210,0ptp4l0-21swapper/207:55:142
111391210,0ptp4l0-21swapper/111:59:291
111391210,0ptp4l0-21swapper/110:41:521
111391210,0ptp4l0-21swapper/110:09:201
111391210,0ptp4l0-21swapper/108:43:231
111391210,0ptp4l0-21swapper/108:15:141
111391210,0ptp4l0-21swapper/008:30:180
111391210,0ptp4l0-21swapper/008:16:430
111391210,0ptp4l0-21swapper/008:00:160
69512200,0sleep10-21swapper/112:00:101
69512200,0sleep10-21swapper/112:00:101
111391200,0ptp4l0-21swapper/709:59:467
111391200,0ptp4l0-21swapper/612:24:206
111391200,0ptp4l0-21swapper/508:42:115
111391200,0ptp4l0-21swapper/508:29:105
111391200,0ptp4l0-21swapper/507:30:075
111391200,0ptp4l0-21swapper/211:13:382
111391200,0ptp4l0-21swapper/109:29:261
111391200,0ptp4l0-21swapper/109:29:261
111391200,0ptp4l0-21swapper/107:59:561
111391190,2ptp4l0-21swapper/508:09:575
111391190,0ptp4l0-21swapper/611:54:446
111391190,0ptp4l0-21swapper/512:30:325
111391190,0ptp4l0-21swapper/512:01:275
111391190,0ptp4l0-21swapper/512:01:265
111391190,0ptp4l0-21swapper/510:57:155
111391190,0ptp4l0-21swapper/210:26:282
111391190,0ptp4l0-21swapper/110:23:061
111391190,0ptp4l0-21swapper/108:53:161
111391190,0ptp4l0-21swapper/107:13:091
111391180,0ptp4l0-21swapper/611:13:396
111391180,0ptp4l0-21swapper/408:18:124
111391180,0ptp4l0-21swapper/107:35:081
111391170,0ptp4l0-21swapper/508:51:235
111391170,0ptp4l0-21swapper/212:03:582
111391170,0ptp4l0-21swapper/212:03:582
111391170,0ptp4l0-21swapper/210:35:482
172272160,1sleep2311rcuc/210:48:252
111391160,0ptp4l0-21swapper/508:59:285
111391160,0ptp4l0-21swapper/508:00:135
111391160,0ptp4l0-21swapper/211:44:012
111391160,0ptp4l0-21swapper/109:04:591
111391160,0ptp4l0-21swapper/108:30:371
111391160,0ptp4l0-21swapper/108:29:041
111391160,0ptp4l0-21swapper/108:06:511
111391160,0ptp4l0-21swapper/107:40:481
111391150,0ptp4l0-21swapper/708:46:407
111391150,0ptp4l0-21swapper/708:08:117
111391150,0ptp4l0-21swapper/612:03:576
111391150,0ptp4l0-21swapper/612:03:576
111391150,0ptp4l0-21swapper/609:01:176
111391150,0ptp4l0-21swapper/608:52:136
111391150,0ptp4l0-21swapper/608:36:236
111391150,0ptp4l0-21swapper/608:26:406
111391150,0ptp4l0-21swapper/608:24:486
111391150,0ptp4l0-21swapper/608:12:516
111391150,0ptp4l0-21swapper/608:01:586
111391150,0ptp4l0-21swapper/607:16:056
111391150,0ptp4l0-21swapper/510:41:525
111391150,0ptp4l0-21swapper/509:05:065
111391150,0ptp4l0-21swapper/509:01:275
111391150,0ptp4l0-21swapper/508:46:145
111391150,0ptp4l0-21swapper/508:37:095
111391150,0ptp4l0-21swapper/508:31:075
111391150,0ptp4l0-21swapper/508:14:095
111391150,0ptp4l0-21swapper/507:55:415
111391150,0ptp4l0-21swapper/507:46:345
111391150,0ptp4l0-21swapper/507:35:025
111391150,0ptp4l0-21swapper/507:28:245
111391150,0ptp4l0-21swapper/507:16:585
111391150,0ptp4l0-21swapper/308:08:083
111391150,0ptp4l0-21swapper/211:39:372
111391150,0ptp4l0-21swapper/209:01:202
111391150,0ptp4l0-21swapper/208:57:052
111391150,0ptp4l0-21swapper/208:53:562
111391150,0ptp4l0-21swapper/208:36:262
111391150,0ptp4l0-21swapper/208:26:392
111391150,0ptp4l0-21swapper/108:47:151
111391150,0ptp4l0-21swapper/108:21:581
111391150,0ptp4l0-21swapper/107:46:311
111391150,0ptp4l0-21swapper/107:27:211
111391150,0ptp4l0-21swapper/107:15:311
111391140,0ptp4l0-21swapper/608:57:046
111391140,0ptp4l0-21swapper/608:46:486
111391140,0ptp4l0-21swapper/607:26:196
111391140,0ptp4l0-21swapper/508:21:585
111391140,0ptp4l0-21swapper/212:24:192
111391140,0ptp4l0-21swapper/211:54:432
111391140,0ptp4l0-21swapper/208:22:282
111391140,0ptp4l0-21swapper/208:19:242
111391140,0ptp4l0-21swapper/208:12:442
111391140,0ptp4l0-21swapper/208:01:582
111391140,0ptp4l0-21swapper/207:26:172
111391140,0ptp4l0-21swapper/207:16:012
186291110,2getstats0-21swapper/307:40:403
1502899119,1cyclictest23685-21munin-run11:40:007
1502899117,3cyclictest15166-21munin-run08:20:007
1502899116,4cyclictest14260-21turbostat12:10:007
1502899116,4cyclictest14260-21turbostat12:10:007
1502899114,6cyclictest2298-21sh11:53:477
1502199110,10cyclictest0-21swapper/609:15:146
1499399119,1cyclictest8476-21munin-run11:20:002
1502899104,5cyclictest6458-21latency_hist10:35:007
1502899104,5cyclictest5745-21diskmemload09:53:397
1502899104,5cyclictest30468-21latency12:30:147
1502899104,5cyclictest29304-21/usr/sbin/munin08:50:187
1502899104,5cyclictest26397-21ps11:00:167
1502899104,5cyclictest22577-21if_virbr010:55:137
1502899104,5cyclictest2142-21open_files12:35:187
1502899104,5cyclictest21145-21phc2sys10:10:177
1502899103,5cyclictest15506-21missed_timers12:10:167
1502899103,2cyclictest1061-21snmpd10:18:427
1502899103,1cyclictest25125-21cat08:40:147
1502899103,1cyclictest1061-21snmpd11:55:267
1502899103,1cyclictest1061-21snmpd07:57:007
1502899102,1cyclictest29056-21ptp4l10:20:177
1502899102,1cyclictest0-21swapper/712:02:017
1502899102,1cyclictest0-21swapper/712:02:007
1502899102,1cyclictest0-21swapper/711:34:087
1502899102,1cyclictest0-21swapper/710:26:577
1502899102,0cyclictest0-21swapper/711:43:297
1502899100,4cyclictest0-21swapper/712:15:187
1502199100,9cyclictest0-21swapper/609:59:436
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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