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2026-08-24 - 23:28

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 Aug 24, 2026 12:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391680,42ptp4l0-21swapper/407:09:454
3023226050,6sleep70-21swapper/707:07:517
111391590,54ptp4l0-21swapper/007:05:200
3011925736,6sleep20-21swapper/207:06:252
1881915543,7phc2sys0-21swapper/107:08:581
1881915532,7phc2sys0-21swapper/507:05:205
3032224938,6sleep60-21swapper/607:09:026
3026624837,7sleep30-21swapper/307:08:193
305792470,0sleep00-21swapper/012:28:070
111391310,0ptp4l0-21swapper/012:35:410
111391310,0ptp4l0-21swapper/010:19:160
111391300,0ptp4l0-21swapper/412:25:194
111391300,0ptp4l0-21swapper/411:25:024
111391300,0ptp4l0-21swapper/012:19:300
111391300,0ptp4l0-21swapper/012:00:190
111391300,0ptp4l0-21swapper/009:42:100
111391290,7ptp4l9528-21/usr/sbin/munin10:25:121
111391290,0ptp4l0-21swapper/510:19:575
111391290,0ptp4l0-21swapper/507:50:125
111391290,0ptp4l0-21swapper/411:42:314
111391290,0ptp4l0-21swapper/009:58:430
111391290,0ptp4l0-21swapper/009:48:540
111391280,0ptp4l0-21swapper/609:26:486
111391280,0ptp4l0-21swapper/512:35:365
111391280,0ptp4l0-21swapper/510:29:005
111391280,0ptp4l0-21swapper/411:35:224
111391280,0ptp4l0-21swapper/311:49:243
111391280,0ptp4l0-21swapper/110:08:561
111391280,0ptp4l0-21swapper/109:19:551
111391280,0ptp4l0-21swapper/012:20:210
111391280,0ptp4l0-21swapper/010:49:180
111391280,0ptp4l0-21swapper/010:49:170
111391280,0ptp4l0-21swapper/010:30:180
111391280,0ptp4l0-21swapper/010:05:240
111391270,0ptp4l9334-21ssh11:56:420
111391270,0ptp4l0-21swapper/510:33:525
111391270,0ptp4l0-21swapper/510:06:455
111391270,0ptp4l0-21swapper/412:33:544
111391270,0ptp4l0-21swapper/412:15:104
111391270,0ptp4l0-21swapper/411:21:544
111391270,0ptp4l0-21swapper/411:02:044
111391270,0ptp4l0-21swapper/112:39:101
111391270,0ptp4l0-21swapper/112:04:341
111391270,0ptp4l0-21swapper/010:25:500
111391260,1ptp4l0-21swapper/012:07:220
111391260,0ptp4l0-21swapper/512:00:155
111391260,0ptp4l0-21swapper/510:01:345
111391260,0ptp4l0-21swapper/509:10:195
111391260,0ptp4l0-21swapper/412:07:024
111391260,0ptp4l0-21swapper/411:12:084
111391260,0ptp4l0-21swapper/410:44:344
111391260,0ptp4l0-21swapper/410:15:484
111391260,0ptp4l0-21swapper/409:23:194
111391260,0ptp4l0-21swapper/408:40:184
111391260,0ptp4l0-21swapper/109:11:251
111391260,0ptp4l0-21swapper/011:35:470
111391260,0ptp4l0-21swapper/011:11:390
111391260,0ptp4l0-21swapper/011:00:180
111391260,0ptp4l0-21swapper/010:40:400
111391260,0ptp4l0-21swapper/010:04:160
111391260,0ptp4l0-21swapper/009:18:420
111391260,0ptp4l0-21swapper/008:14:090
111391260,0ptp4l0-21swapper/008:14:090
111391260,0ptp4l0-21swapper/007:10:430
111391250,1ptp4l27246-21chrt10:50:100
111391250,1ptp4l27246-21chrt10:50:100
111391250,1ptp4l13336-21diskstats10:30:121
111391250,0ptp4l21434-21diskmemload09:10:154
111391250,0ptp4l0-21swapper/612:30:136
111391250,0ptp4l0-21swapper/511:52:115
111391250,0ptp4l0-21swapper/509:45:255
111391250,0ptp4l0-21swapper/509:15:165
111391250,0ptp4l0-21swapper/412:20:174
111391250,0ptp4l0-21swapper/411:56:094
111391250,0ptp4l0-21swapper/410:14:514
111391250,0ptp4l0-21swapper/409:51:144
111391250,0ptp4l0-21swapper/111:40:511
111391250,0ptp4l0-21swapper/111:05:171
111391250,0ptp4l0-21swapper/109:45:201
111391250,0ptp4l0-21swapper/011:52:380
111391250,0ptp4l0-21swapper/011:27:000
111391250,0ptp4l0-21swapper/010:20:170
111391250,0ptp4l0-21swapper/009:35:260
111391240,1ptp4l9-21ksoftirqd/009:25:200
111391240,1ptp4l30654-21cyclictest07:25:204
111391240,1ptp4l29820-21/usr/sbin/munin09:20:140
111391240,1ptp4l21434-21diskmemload12:13:494
111391240,1ptp4l17103-21latency_hist09:00:015
111391240,1ptp4l11991-21switchtime12:00:204
111391240,0ptp4l21434-21diskmemload12:04:152
111391240,0ptp4l0-21swapper/511:55:085
111391240,0ptp4l0-21swapper/511:05:175
111391240,0ptp4l0-21swapper/509:20:125
111391240,0ptp4l0-21swapper/508:15:215
111391240,0ptp4l0-21swapper/507:10:125
111391240,0ptp4l0-21swapper/412:35:224
111391240,0ptp4l0-21swapper/410:55:164
111391240,0ptp4l0-21swapper/409:15:534
111391240,0ptp4l0-21swapper/408:35:194
111391240,0ptp4l0-21swapper/408:25:364
111391240,0ptp4l0-21swapper/112:09:261
111391240,0ptp4l0-21swapper/111:51:501
111391240,0ptp4l0-21swapper/109:23:361
111391240,0ptp4l0-21swapper/011:45:010
111391240,0ptp4l0-21swapper/011:21:030
111391240,0ptp4l0-21swapper/011:18:000
111391240,0ptp4l0-21swapper/011:08:060
111391240,0ptp4l0-21swapper/009:50:180
111391240,0ptp4l0-21swapper/008:45:130
111391240,0ptp4l0-21swapper/008:40:130
111391240,0ptp4l0-21swapper/008:05:190
111391230,4ptp4l0-21swapper/107:42:431
111391230,1ptp4l9968-21munin-run08:45:015
111391230,1ptp4l31154-21diskstats07:10:121
111391230,1ptp4l18239-21processes09:00:184
111391230,0ptp4l0-21swapper/711:48:477
111391230,0ptp4l0-21swapper/708:10:177
111391230,0ptp4l0-21swapper/708:10:177
111391230,0ptp4l0-21swapper/707:15:107
111391230,0ptp4l0-21swapper/512:05:155
111391230,0ptp4l0-21swapper/511:15:135
111391230,0ptp4l0-21swapper/511:10:185
111391230,0ptp4l0-21swapper/510:22:575
111391230,0ptp4l0-21swapper/509:50:135
111391230,0ptp4l0-21swapper/508:00:135
111391230,0ptp4l0-21swapper/411:53:364
111391230,0ptp4l0-21swapper/411:45:014
111391230,0ptp4l0-21swapper/411:16:544
111391230,0ptp4l0-21swapper/411:09:254
111391230,0ptp4l0-21swapper/410:46:304
111391230,0ptp4l0-21swapper/410:46:304
111391230,0ptp4l0-21swapper/410:36:034
111391230,0ptp4l0-21swapper/410:32:024
111391230,0ptp4l0-21swapper/410:25:174
111391230,0ptp4l0-21swapper/410:20:164
111391230,0ptp4l0-21swapper/410:05:134
111391230,0ptp4l0-21swapper/410:00:074
111391230,0ptp4l0-21swapper/409:55:234
111391230,0ptp4l0-21swapper/409:45:134
111391230,0ptp4l0-21swapper/409:40:144
111391230,0ptp4l0-21swapper/409:35:104
111391230,0ptp4l0-21swapper/409:30:114
111391230,0ptp4l0-21swapper/409:25:214
111391230,0ptp4l0-21swapper/408:50:014
111391230,0ptp4l0-21swapper/407:45:184
111391230,0ptp4l0-21swapper/407:20:214
111391230,0ptp4l0-21swapper/308:10:143
111391230,0ptp4l0-21swapper/308:10:133
111391230,0ptp4l0-21swapper/111:33:231
111391230,0ptp4l0-21swapper/111:15:131
111391230,0ptp4l0-21swapper/110:43:091
111391230,0ptp4l0-21swapper/110:22:521
111391230,0ptp4l0-21swapper/109:37:571
111391230,0ptp4l0-21swapper/109:28:331
111391230,0ptp4l0-21swapper/108:15:131
111391230,0ptp4l0-21swapper/108:05:001
111391230,0ptp4l0-21swapper/107:50:171
111391230,0ptp4l0-21swapper/012:33:490
111391230,0ptp4l0-21swapper/012:10:120
111391230,0ptp4l0-21swapper/010:55:110
111391230,0ptp4l0-21swapper/010:35:160
111391230,0ptp4l0-21swapper/010:10:190
111391230,0ptp4l0-21swapper/009:30:140
111391230,0ptp4l0-21swapper/009:13:270
111391230,0ptp4l0-21swapper/009:00:130
111391230,0ptp4l0-21swapper/008:35:190
111391230,0ptp4l0-21swapper/008:25:210
111391230,0ptp4l0-21swapper/008:20:130
111391230,0ptp4l0-21swapper/007:45:130
111391230,0ptp4l0-21swapper/007:35:140
111391230,0ptp4l0-21swapper/007:30:170
111391230,0ptp4l0-21swapper/007:25:170
111391220,1ptp4l1061-21snmpd11:28:181
111391220,0ptp4l21434-21diskmemload12:31:111
111391220,0ptp4l0-21swapper/712:24:177
111391220,0ptp4l0-21swapper/512:31:075
111391220,0ptp4l0-21swapper/512:29:475
111391220,0ptp4l0-21swapper/512:24:475
111391220,0ptp4l0-21swapper/512:16:595
111391220,0ptp4l0-21swapper/512:11:025
111391220,0ptp4l0-21swapper/511:41:345
111391220,0ptp4l0-21swapper/511:04:235
111391220,0ptp4l0-21swapper/510:46:265
111391220,0ptp4l0-21swapper/510:46:265
111391220,0ptp4l0-21swapper/510:42:405
111391220,0ptp4l0-21swapper/509:58:475
111391220,0ptp4l0-21swapper/509:37:095
111391220,0ptp4l0-21swapper/509:32:095
111391220,0ptp4l0-21swapper/509:28:155
111391220,0ptp4l0-21swapper/508:50:215
111391220,0ptp4l0-21swapper/508:30:155
111391220,0ptp4l0-21swapper/507:40:125
111391220,0ptp4l0-21swapper/411:30:114
111391220,0ptp4l0-21swapper/410:50:204
111391220,0ptp4l0-21swapper/410:50:204
111391220,0ptp4l0-21swapper/409:05:164
111391220,0ptp4l0-21swapper/408:34:104
111391220,0ptp4l0-21swapper/408:20:134
111391220,0ptp4l0-21swapper/408:05:124
111391220,0ptp4l0-21swapper/408:00:164
111391220,0ptp4l0-21swapper/407:35:134
111391220,0ptp4l0-21swapper/407:30:124
111391220,0ptp4l0-21swapper/307:15:003
111391220,0ptp4l0-21swapper/212:30:142
111391220,0ptp4l0-21swapper/211:25:142
111391220,0ptp4l0-21swapper/210:12:002
111391220,0ptp4l0-21swapper/209:43:132
111391220,0ptp4l0-21swapper/112:15:581
111391220,0ptp4l0-21swapper/112:14:051
111391220,0ptp4l0-21swapper/111:10:151
111391220,0ptp4l0-21swapper/111:04:551
111391220,0ptp4l0-21swapper/110:56:581
111391220,0ptp4l0-21swapper/110:52:181
111391220,0ptp4l0-21swapper/110:52:171
111391220,0ptp4l0-21swapper/110:19:511
111391220,0ptp4l0-21swapper/109:59:101
111391220,0ptp4l0-21swapper/109:54:221
111391220,0ptp4l0-21swapper/109:30:481
111391220,0ptp4l0-21swapper/108:55:171
111391220,0ptp4l0-21swapper/108:50:231
111391220,0ptp4l0-21swapper/108:30:161
111391220,0ptp4l0-21swapper/108:14:461
111391220,0ptp4l0-21swapper/108:14:461
111391220,0ptp4l0-21swapper/107:55:211
111391220,0ptp4l0-21swapper/107:45:201
111391220,0ptp4l0-21swapper/011:45:110
111391220,0ptp4l0-21swapper/011:30:140
111391220,0ptp4l0-21swapper/008:50:150
111391220,0ptp4l0-21swapper/008:00:200
111391220,0ptp4l0-21swapper/007:52:250
111391220,0ptp4l0-21swapper/007:20:120
111391210,0ptp4l0-21swapper/612:12:256
111391210,0ptp4l0-21swapper/610:17:326
111391210,0ptp4l0-21swapper/610:12:256
111391210,0ptp4l0-21swapper/609:57:016
111391210,0ptp4l0-21swapper/609:38:466
111391210,0ptp4l0-21swapper/511:46:025
111391210,0ptp4l0-21swapper/511:33:145
111391210,0ptp4l0-21swapper/510:56:215
111391210,0ptp4l0-21swapper/509:43:335
111391210,0ptp4l0-21swapper/508:10:015
111391210,0ptp4l0-21swapper/508:10:015
111391210,0ptp4l0-21swapper/507:55:185
111391210,0ptp4l0-21swapper/507:45:435
111391210,0ptp4l0-21swapper/408:45:144
111391210,0ptp4l0-21swapper/407:56:444
111391210,0ptp4l0-21swapper/407:41:244
111391210,0ptp4l0-21swapper/308:43:093
111391210,0ptp4l0-21swapper/212:12:222
111391210,0ptp4l0-21swapper/211:24:032
111391210,0ptp4l0-21swapper/210:21:482
111391210,0ptp4l0-21swapper/209:37:012
111391210,0ptp4l0-21swapper/209:26:512
111391210,0ptp4l0-21swapper/112:29:461
111391210,0ptp4l0-21swapper/110:38:081
111391210,0ptp4l0-21swapper/110:12:491
111391210,0ptp4l0-21swapper/109:43:371
111391210,0ptp4l0-21swapper/109:01:001
111391210,0ptp4l0-21swapper/107:31:381
111391200,0ptp4l0-21swapper/708:07:427
111391200,0ptp4l0-21swapper/612:04:156
111391200,0ptp4l0-21swapper/609:43:106
111391200,0ptp4l0-21swapper/511:28:205
111391200,0ptp4l0-21swapper/511:21:195
111391200,0ptp4l0-21swapper/510:52:165
111391200,0ptp4l0-21swapper/510:52:165
111391200,0ptp4l0-21swapper/510:13:065
111391200,0ptp4l0-21swapper/508:07:355
111391200,0ptp4l0-21swapper/507:32:435
111391200,0ptp4l0-21swapper/507:29:275
111391200,0ptp4l0-21swapper/507:17:105
111391200,0ptp4l0-21swapper/407:18:404
111391200,0ptp4l0-21swapper/407:12:434
111391200,0ptp4l0-21swapper/312:24:233
111391200,0ptp4l0-21swapper/208:05:022
111391200,0ptp4l0-21swapper/112:21:081
111391200,0ptp4l0-21swapper/111:55:081
111391200,0ptp4l0-21swapper/110:03:061
111391200,0ptp4l0-21swapper/108:27:191
111391200,0ptp4l0-21swapper/108:07:061
111391200,0ptp4l0-21swapper/107:22:091
111391200,0ptp4l0-21swapper/107:18:141
111391200,0ptp4l0-21swapper/008:57:350
111391200,0ptp4l0-21swapper/008:30:580
111391200,0ptp4l0-21swapper/008:19:260
111391200,0ptp4l0-21swapper/007:59:550
111391200,0ptp4l0-21swapper/007:44:090
111391190,0ptp4l12092-21taskset08:48:031
111391190,0ptp4l0-21swapper/708:36:437
111391190,0ptp4l0-21swapper/611:29:266
111391190,0ptp4l0-21swapper/611:23:556
111391190,0ptp4l0-21swapper/610:21:406
111391190,0ptp4l0-21swapper/508:27:445
111391190,0ptp4l0-21swapper/508:23:555
111391190,0ptp4l0-21swapper/507:37:435
111391190,0ptp4l0-21swapper/111:47:371
111391190,0ptp4l0-21swapper/111:21:191
111391190,0ptp4l0-21swapper/110:46:241
111391190,0ptp4l0-21swapper/110:46:241
111391190,0ptp4l0-21swapper/109:09:561
111391190,0ptp4l0-21swapper/108:38:291
111391190,0ptp4l0-21swapper/009:07:510
111391180,0ptp4l0-21swapper/610:39:466
111391180,0ptp4l0-21swapper/610:25:216
111391180,0ptp4l0-21swapper/609:14:206
111391180,0ptp4l0-21swapper/511:37:475
111391180,0ptp4l0-21swapper/408:57:404
111391180,0ptp4l0-21swapper/408:15:524
111391180,0ptp4l0-21swapper/408:12:434
111391180,0ptp4l0-21swapper/408:12:434
111391180,0ptp4l0-21swapper/210:17:302
111391180,0ptp4l0-21swapper/209:57:062
111391180,0ptp4l0-21swapper/209:21:542
111391180,0ptp4l0-21swapper/209:14:212
111391180,0ptp4l0-21swapper/111:37:491
111391170,0ptp4l0-21swapper/210:25:222
111391170,0ptp4l0-21swapper/207:12:192
111391160,0ptp4l0-21swapper/509:09:485
111391160,0ptp4l0-21swapper/407:51:314
111391160,0ptp4l0-21swapper/209:08:462
111391160,0ptp4l0-21swapper/108:44:591
111391160,0ptp4l0-21swapper/107:28:561
30689991513,1cyclictest0-21swapper/311:00:213
111391150,0ptp4l0-21swapper/708:41:337
111391150,0ptp4l0-21swapper/609:08:446
111391150,0ptp4l0-21swapper/609:01:416
111391150,0ptp4l0-21swapper/608:43:226
111391150,0ptp4l0-21swapper/608:32:556
111391150,0ptp4l0-21swapper/608:05:036
111391150,0ptp4l0-21swapper/607:59:446
111391150,0ptp4l0-21swapper/607:12:256
111391150,0ptp4l0-21swapper/509:00:475
111391150,0ptp4l0-21swapper/508:46:115
111391150,0ptp4l0-21swapper/508:35:595
111391150,0ptp4l0-21swapper/507:20:365
111391150,0ptp4l0-21swapper/308:07:403
111391150,0ptp4l0-21swapper/209:32:212
111391150,0ptp4l0-21swapper/208:43:252
111391150,0ptp4l0-21swapper/207:59:492
111391150,0ptp4l0-21swapper/108:21:371
111391150,0ptp4l0-21swapper/107:37:461
111391150,0ptp4l0-21swapper/007:15:510
111391140,0ptp4l0-21swapper/609:32:226
111391140,0ptp4l0-21swapper/608:11:476
111391140,0ptp4l0-21swapper/608:11:476
111391140,0ptp4l0-21swapper/607:44:036
111391140,0ptp4l0-21swapper/308:36:423
111391140,0ptp4l0-21swapper/210:40:402
111391140,0ptp4l0-21swapper/210:39:492
111391140,0ptp4l0-21swapper/209:01:412
111391140,0ptp4l0-21swapper/208:32:542
111391140,0ptp4l0-21swapper/208:11:462
111391140,0ptp4l0-21swapper/208:11:462
111391140,0ptp4l0-21swapper/207:43:362
111391140,0ptp4l0-21swapper/207:26:052
30716991311,1cyclictest21839-21turbostat11:30:017
30716991310,2cyclictest7922-21munin-run07:30:007
30681991311,1cyclictest2852-21tail07:15:182
111391130,0ptp4l0-21swapper/609:21:546
3070999119,1cyclictest0-21swapper/608:20:206
3071699109,0cyclictest0-21swapper/712:10:387
3071699109,0cyclictest0-21swapper/711:12:487
3071699109,0cyclictest0-21swapper/710:52:227
3071699109,0cyclictest0-21swapper/710:52:227
3071699109,0cyclictest0-21swapper/709:59:157
3071699100,9cyclictest0-21swapper/709:21:327
3071699100,9cyclictest0-21swapper/708:16:107
3071699100,0cyclictest0-21swapper/711:50:427
3070999109,0cyclictest0-21swapper/609:19:266
3068999109,0cyclictest0-21swapper/312:31:263
3068999109,0cyclictest0-21swapper/312:15:233
3068999108,1cyclictest0-21swapper/310:25:133
3068999100,9cyclictest0-21swapper/309:39:013
3068199109,0cyclictest0-21swapper/211:52:002
3068199100,9cyclictest0-21swapper/212:15:062
3068199100,9cyclictest0-21swapper/211:31:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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