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2026-05-16 - 12:21

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 May 16, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391690,2ptp4l0-21swapper/119:05:191
111391640,5ptp4l0-21swapper/419:09:574
111391630,5ptp4l0-21swapper/019:05:570
1881915949,6phc2sys0-21swapper/219:07:352
290992570,0sleep10-21swapper/100:35:211
1452125433,6sleep60-21swapper/619:07:256
1466825040,6sleep70-21swapper/719:09:187
111391480,2ptp4l0-21swapper/519:05:175
1442724736,7sleep30-21swapper/319:06:103
111391350,0ptp4l0-21swapper/020:35:150
111391350,0ptp4l0-21swapper/020:35:140
111391330,0ptp4l0-21swapper/422:48:384
111391310,0ptp4l0-21swapper/523:35:515
111391300,0ptp4l0-21swapper/422:40:134
111391300,0ptp4l0-21swapper/400:35:134
111391290,1ptp4l3490-21ssh22:32:540
111391290,0ptp4l0-21swapper/521:43:535
111391290,0ptp4l0-21swapper/422:51:384
111391290,0ptp4l0-21swapper/420:10:124
111391290,0ptp4l0-21swapper/400:30:374
111391290,0ptp4l0-21swapper/123:32:181
111391290,0ptp4l0-21swapper/023:14:140
111391290,0ptp4l0-21swapper/023:14:140
111391290,0ptp4l0-21swapper/022:15:450
111391290,0ptp4l0-21swapper/021:13:400
111391280,3ptp4l0-21swapper/023:23:350
111391280,2ptp4l0-21swapper/000:30:550
111391280,0ptp4l0-21swapper/521:50:125
111391280,0ptp4l0-21swapper/500:32:435
111391280,0ptp4l0-21swapper/422:07:214
111391280,0ptp4l0-21swapper/421:57:354
111391280,0ptp4l0-21swapper/421:22:464
111391280,0ptp4l0-21swapper/421:10:164
111391280,0ptp4l0-21swapper/400:07:434
111391280,0ptp4l0-21swapper/122:28:391
111391280,0ptp4l0-21swapper/121:15:131
111391280,0ptp4l0-21swapper/023:54:280
111391280,0ptp4l0-21swapper/000:35:390
111391270,0ptp4l0-21swapper/500:16:415
111391270,0ptp4l0-21swapper/423:28:454
111391270,0ptp4l0-21swapper/422:39:554
111391270,0ptp4l0-21swapper/422:11:224
111391270,0ptp4l0-21swapper/421:47:144
111391270,0ptp4l0-21swapper/421:25:574
111391270,0ptp4l0-21swapper/123:05:331
111391270,0ptp4l0-21swapper/022:09:450
111391260,1ptp4l121rcu_preempt22:18:191
111391260,1ptp4l10131-21unixbench_multi20:05:204
111391260,0ptp4l0-21swapper/623:49:066
111391260,0ptp4l0-21swapper/423:00:564
111391260,0ptp4l0-21swapper/422:04:194
111391260,0ptp4l0-21swapper/421:53:244
111391260,0ptp4l0-21swapper/400:11:154
111391260,0ptp4l0-21swapper/122:44:091
111391260,0ptp4l0-21swapper/100:13:191
111391260,0ptp4l0-21swapper/023:27:480
111391260,0ptp4l0-21swapper/023:08:520
111391260,0ptp4l0-21swapper/022:12:370
111391250,3ptp4l561ktimersoftd/523:55:035
111391250,1ptp4l23308-21irqstats19:25:161
111391250,0ptp4l0-21swapper/523:15:085
111391250,0ptp4l0-21swapper/523:15:085
111391250,0ptp4l0-21swapper/523:05:075
111391250,0ptp4l0-21swapper/522:43:385
111391250,0ptp4l0-21swapper/521:45:125
111391250,0ptp4l0-21swapper/519:50:215
111391250,0ptp4l0-21swapper/423:35:364
111391250,0ptp4l0-21swapper/423:07:514
111391250,0ptp4l0-21swapper/421:31:364
111391250,0ptp4l0-21swapper/400:03:424
111391250,0ptp4l0-21swapper/122:45:131
111391250,0ptp4l0-21swapper/121:45:191
111391250,0ptp4l0-21swapper/121:11:201
111391250,0ptp4l0-21swapper/023:41:240
111391250,0ptp4l0-21swapper/022:45:220
111391250,0ptp4l0-21swapper/022:40:490
111391250,0ptp4l0-21swapper/021:59:510
111391250,0ptp4l0-21swapper/021:50:210
111391250,0ptp4l0-21swapper/021:47:340
111391250,0ptp4l0-21swapper/021:41:190
111391250,0ptp4l0-21swapper/021:34:270
111391250,0ptp4l0-21swapper/021:21:160
111391250,0ptp4l0-21swapper/021:15:300
111391250,0ptp4l0-21swapper/000:19:190
111391250,0ptp4l0-21swapper/000:08:190
111391240,3ptp4l0-21swapper/121:31:201
111391240,2ptp4l101ktimersoftd/022:29:530
111391240,2ptp4l0-21swapper/022:50:590
111391240,1ptp4l6559-21/usr/sbin/munin23:20:184
111391240,1ptp4l31202-21/usr/sbin/munin23:55:120
111391240,1ptp4l23819-21timerwakeupswit22:15:214
111391240,1ptp4l21845-21awk00:25:204
111391240,0ptp4l5763-21diskmemload23:49:344
111391240,0ptp4l26375-21ssh21:35:191
111391240,0ptp4l0-21swapper/523:11:075
111391240,0ptp4l0-21swapper/523:11:075
111391240,0ptp4l0-21swapper/521:34:175
111391240,0ptp4l0-21swapper/521:12:225
111391240,0ptp4l0-21swapper/519:55:155
111391240,0ptp4l0-21swapper/519:20:195
111391240,0ptp4l0-21swapper/423:42:244
111391240,0ptp4l0-21swapper/423:34:204
111391240,0ptp4l0-21swapper/422:20:114
111391240,0ptp4l0-21swapper/421:44:354
111391240,0ptp4l0-21swapper/421:00:214
111391240,0ptp4l0-21swapper/421:00:014
111391240,0ptp4l0-21swapper/420:30:214
111391240,0ptp4l0-21swapper/419:30:144
111391240,0ptp4l0-21swapper/123:14:091
111391240,0ptp4l0-21swapper/123:14:091
111391240,0ptp4l0-21swapper/123:04:381
111391240,0ptp4l0-21swapper/122:59:221
111391240,0ptp4l0-21swapper/122:52:031
111391240,0ptp4l0-21swapper/121:43:131
111391240,0ptp4l0-21swapper/120:30:151
111391240,0ptp4l0-21swapper/119:54:001
111391240,0ptp4l0-21swapper/119:40:141
111391240,0ptp4l0-21swapper/023:15:170
111391240,0ptp4l0-21swapper/023:15:170
111391240,0ptp4l0-21swapper/022:37:540
111391240,0ptp4l0-21swapper/022:23:360
111391240,0ptp4l0-21swapper/021:35:330
111391240,0ptp4l0-21swapper/020:25:160
111391240,0ptp4l0-21swapper/019:15:010
111391240,0ptp4l0-21swapper/000:27:310
111391240,0ptp4l0-21swapper/000:11:090
111391240,0ptp4l0-21swapper/000:02:530
111391230,1ptp4l30002-21df_inode22:25:114
111391230,1ptp4l1500699cyclictest00:20:111
111391230,0ptp4l0-21swapper/720:02:307
111391230,0ptp4l0-21swapper/600:28:096
111391230,0ptp4l0-21swapper/523:30:205
111391230,0ptp4l0-21swapper/523:03:115
111391230,0ptp4l0-21swapper/521:38:075
111391230,0ptp4l0-21swapper/521:20:205
111391230,0ptp4l0-21swapper/521:15:125
111391230,0ptp4l0-21swapper/519:45:205
111391230,0ptp4l0-21swapper/519:40:155
111391230,0ptp4l0-21swapper/500:20:185
111391230,0ptp4l0-21swapper/500:10:195
111391230,0ptp4l0-21swapper/500:05:125
111391230,0ptp4l0-21swapper/423:10:124
111391230,0ptp4l0-21swapper/423:10:124
111391230,0ptp4l0-21swapper/422:55:164
111391230,0ptp4l0-21swapper/422:30:204
111391230,0ptp4l0-21swapper/421:37:004
111391230,0ptp4l0-21swapper/421:15:414
111391230,0ptp4l0-21swapper/420:40:174
111391230,0ptp4l0-21swapper/420:40:174
111391230,0ptp4l0-21swapper/420:20:124
111391230,0ptp4l0-21swapper/420:00:124
111391230,0ptp4l0-21swapper/419:56:534
111391230,0ptp4l0-21swapper/323:13:053
111391230,0ptp4l0-21swapper/323:13:053
111391230,0ptp4l0-21swapper/320:02:573
111391230,0ptp4l0-21swapper/220:55:142
111391230,0ptp4l0-21swapper/220:00:162
111391230,0ptp4l0-21swapper/123:56:211
111391230,0ptp4l0-21swapper/123:36:181
111391230,0ptp4l0-21swapper/123:15:151
111391230,0ptp4l0-21swapper/123:15:141
111391230,0ptp4l0-21swapper/121:59:371
111391230,0ptp4l0-21swapper/121:26:551
111391230,0ptp4l0-21swapper/120:39:381
111391230,0ptp4l0-21swapper/120:39:371
111391230,0ptp4l0-21swapper/119:45:111
111391230,0ptp4l0-21swapper/119:24:591
111391230,0ptp4l0-21swapper/100:35:001
111391230,0ptp4l0-21swapper/100:25:431
111391230,0ptp4l0-21swapper/023:39:000
111391230,0ptp4l0-21swapper/023:00:120
111391230,0ptp4l0-21swapper/022:55:050
111391230,0ptp4l0-21swapper/022:00:130
111391230,0ptp4l0-21swapper/021:25:150
111391230,0ptp4l0-21swapper/021:05:170
111391230,0ptp4l0-21swapper/020:55:140
111391230,0ptp4l0-21swapper/020:40:130
111391230,0ptp4l0-21swapper/020:40:130
111391230,0ptp4l0-21swapper/020:20:150
111391230,0ptp4l0-21swapper/020:10:190
111391230,0ptp4l0-21swapper/019:30:130
111391220,3ptp4l401ktimersoftd/322:06:063
111391220,3ptp4l0-21swapper/119:12:561
111391220,0ptp4l0-21swapper/723:13:257
111391220,0ptp4l0-21swapper/723:13:247
111391220,0ptp4l0-21swapper/719:10:147
111391220,0ptp4l0-21swapper/622:20:076
111391220,0ptp4l0-21swapper/620:00:206
111391220,0ptp4l0-21swapper/523:50:175
111391220,0ptp4l0-21swapper/523:40:305
111391220,0ptp4l0-21swapper/523:29:595
111391220,0ptp4l0-21swapper/522:57:415
111391220,0ptp4l0-21swapper/522:52:015
111391220,0ptp4l0-21swapper/522:36:245
111391220,0ptp4l0-21swapper/522:28:305
111391220,0ptp4l0-21swapper/522:22:125
111391220,0ptp4l0-21swapper/522:18:565
111391220,0ptp4l0-21swapper/522:09:345
111391220,0ptp4l0-21swapper/522:03:565
111391220,0ptp4l0-21swapper/521:29:385
111391220,0ptp4l0-21swapper/520:55:205
111391220,0ptp4l0-21swapper/520:45:125
111391220,0ptp4l0-21swapper/520:11:235
111391220,0ptp4l0-21swapper/519:35:125
111391220,0ptp4l0-21swapper/519:25:145
111391220,0ptp4l0-21swapper/500:37:155
111391220,0ptp4l0-21swapper/500:00:015
111391220,0ptp4l0-21swapper/423:55:144
111391220,0ptp4l0-21swapper/423:50:214
111391220,0ptp4l0-21swapper/423:15:174
111391220,0ptp4l0-21swapper/423:15:164
111391220,0ptp4l0-21swapper/420:50:144
111391220,0ptp4l0-21swapper/420:35:164
111391220,0ptp4l0-21swapper/420:35:154
111391220,0ptp4l0-21swapper/420:25:134
111391220,0ptp4l0-21swapper/420:15:144
111391220,0ptp4l0-21swapper/419:45:134
111391220,0ptp4l0-21swapper/419:40:134
111391220,0ptp4l0-21swapper/419:28:214
111391220,0ptp4l0-21swapper/419:22:434
111391220,0ptp4l0-21swapper/419:15:164
111391220,0ptp4l0-21swapper/400:20:234
111391220,0ptp4l0-21swapper/400:15:134
111391220,0ptp4l0-21swapper/319:10:153
111391220,0ptp4l0-21swapper/123:50:131
111391220,0ptp4l0-21swapper/123:40:291
111391220,0ptp4l0-21swapper/123:26:091
111391220,0ptp4l0-21swapper/122:04:371
111391220,0ptp4l0-21swapper/121:50:111
111391220,0ptp4l0-21swapper/121:25:011
111391220,0ptp4l0-21swapper/120:45:111
111391220,0ptp4l0-21swapper/120:25:201
111391220,0ptp4l0-21swapper/120:22:371
111391220,0ptp4l0-21swapper/119:35:141
111391220,0ptp4l0-21swapper/100:05:011
111391220,0ptp4l0-21swapper/023:45:010
111391220,0ptp4l0-21swapper/020:50:140
111391220,0ptp4l0-21swapper/020:05:190
111391220,0ptp4l0-21swapper/020:01:000
111391220,0ptp4l0-21swapper/019:41:400
111391220,0ptp4l0-21swapper/000:21:530
111391210,3ptp4l0-21swapper/019:48:230
111391210,0ptp4l0-21swapper/721:17:457
111391210,0ptp4l0-21swapper/622:39:416
111391210,0ptp4l0-21swapper/522:45:095
111391210,0ptp4l0-21swapper/522:31:355
111391210,0ptp4l0-21swapper/522:12:435
111391210,0ptp4l0-21swapper/521:05:185
111391210,0ptp4l0-21swapper/520:37:555
111391210,0ptp4l0-21swapper/520:37:555
111391210,0ptp4l0-21swapper/520:15:175
111391210,0ptp4l0-21swapper/520:07:455
111391210,0ptp4l0-21swapper/500:25:245
111391210,0ptp4l0-21swapper/419:35:164
111391210,0ptp4l0-21swapper/321:17:473
111391210,0ptp4l0-21swapper/222:39:372
111391210,0ptp4l0-21swapper/222:05:042
111391210,0ptp4l0-21swapper/221:18:542
111391210,0ptp4l0-21swapper/123:49:591
111391210,0ptp4l0-21swapper/122:35:481
111391210,0ptp4l0-21swapper/122:32:041
111391210,0ptp4l0-21swapper/122:22:191
111391210,0ptp4l0-21swapper/122:09:221
111391210,0ptp4l0-21swapper/121:05:141
111391210,0ptp4l0-21swapper/120:58:561
111391210,0ptp4l0-21swapper/120:15:161
111391210,0ptp4l0-21swapper/119:55:131
111391210,0ptp4l0-21swapper/100:15:551
111391210,0ptp4l0-21swapper/100:00:251
111391210,0ptp4l0-21swapper/023:33:190
111391210,0ptp4l0-21swapper/021:00:140
111391210,0ptp4l0-21swapper/020:30:160
111391210,0ptp4l0-21swapper/019:35:150
111391210,0ptp4l0-21swapper/019:25:210
111391200,2ptp4l0-21swapper/019:11:000
111391200,0ptp4l0-21swapper/721:23:547
111391200,0ptp4l0-21swapper/523:48:325
111391200,0ptp4l0-21swapper/523:24:435
111391200,0ptp4l0-21swapper/521:56:455
111391200,0ptp4l0-21swapper/419:51:014
111391200,0ptp4l0-21swapper/223:42:592
111391200,0ptp4l0-21swapper/223:14:432
111391200,0ptp4l0-21swapper/223:14:432
111391200,0ptp4l0-21swapper/222:58:302
111391200,0ptp4l0-21swapper/219:14:442
111391200,0ptp4l0-21swapper/123:20:021
111391200,0ptp4l0-21swapper/120:52:461
111391200,0ptp4l0-21swapper/120:12:181
111391200,0ptp4l0-21swapper/020:15:190
111391200,0ptp4l0-21swapper/019:52:440
145192190,0sleep20-21swapper/220:15:202
111391190,1ptp4l20428-21fw_forwarded_lo20:30:135
111391190,0ptp4l0-21swapper/722:06:087
111391190,0ptp4l0-21swapper/421:05:114
111391190,0ptp4l0-21swapper/420:47:054
111391190,0ptp4l0-21swapper/120:41:431
111391190,0ptp4l0-21swapper/120:41:431
111391190,0ptp4l0-21swapper/020:49:560
111391180,2ptp4l0-21swapper/520:23:445
111391180,0ptp4l0-21swapper/700:31:577
111391180,0ptp4l0-21swapper/621:53:466
111391180,0ptp4l0-21swapper/621:18:556
111391180,0ptp4l0-21swapper/600:09:286
111391180,0ptp4l0-21swapper/520:44:395
111391180,0ptp4l0-21swapper/520:44:385
111391180,0ptp4l0-21swapper/520:04:555
111391180,0ptp4l0-21swapper/519:19:545
111391180,0ptp4l0-21swapper/519:13:065
111391180,0ptp4l0-21swapper/223:49:092
111391180,0ptp4l0-21swapper/200:28:062
111391180,0ptp4l0-21swapper/122:12:441
111391170,0ptp4l0-21swapper/619:14:446
111391170,0ptp4l0-21swapper/300:31:563
111391170,0ptp4l0-21swapper/120:07:071
111391170,0ptp4l0-21swapper/119:34:551
111391170,0ptp4l0-21swapper/119:18:331
111391170,0ptp4l0-21swapper/019:56:450
66872160,0sleep10-21swapper/120:00:131
310542160,0sleep60-21swapper/621:42:156
111391160,0ptp4l0-21swapper/623:00:036
111391160,0ptp4l0-21swapper/519:34:555
111391160,0ptp4l0-21swapper/322:39:053
111391160,0ptp4l0-21swapper/200:22:342
111391150,0ptp4l0-21swapper/721:03:257
111391150,0ptp4l0-21swapper/720:17:017
111391150,0ptp4l0-21swapper/623:08:286
111391150,0ptp4l0-21swapper/622:16:036
111391150,0ptp4l0-21swapper/620:59:436
111391150,0ptp4l0-21swapper/620:53:586
111391150,0ptp4l0-21swapper/620:31:276
111391150,0ptp4l0-21swapper/620:13:366
111391150,0ptp4l0-21swapper/619:17:326
111391150,0ptp4l0-21swapper/521:02:485
111391150,0ptp4l0-21swapper/520:51:045
111391150,0ptp4l0-21swapper/520:25:215
111391150,0ptp4l0-21swapper/419:10:014
111391150,0ptp4l0-21swapper/320:16:493
111391150,0ptp4l0-21swapper/223:08:302
111391150,0ptp4l0-21swapper/223:00:022
111391150,0ptp4l0-21swapper/220:53:582
111391150,0ptp4l0-21swapper/220:31:342
111391150,0ptp4l0-21swapper/121:02:481
111391150,0ptp4l0-21swapper/019:21:450
111391140,0ptp4l0-21swapper/722:39:057
111391140,0ptp4l0-21swapper/622:05:056
111391140,0ptp4l0-21swapper/619:44:526
111391140,0ptp4l0-21swapper/321:23:503
111391140,0ptp4l0-21swapper/321:03:243
111391140,0ptp4l0-21swapper/222:20:052
111391140,0ptp4l0-21swapper/222:16:062
111391140,0ptp4l0-21swapper/221:53:442
111391140,0ptp4l0-21swapper/221:10:072
111391140,0ptp4l0-21swapper/220:42:162
111391140,0ptp4l0-21swapper/220:42:152
111391140,0ptp4l0-21swapper/220:13:352
111391140,0ptp4l0-21swapper/219:44:512
111391140,0ptp4l0-21swapper/219:17:002
111391140,0ptp4l0-21swapper/200:09:282
15014991311,1cyclictest10587-21turbostat20:10:002
111391130,0ptp4l0-21swapper/219:27:252
1501999110,1cyclictest5763-21diskmemload23:35:003
1504799109,0cyclictest0-21swapper/721:25:447
1504799100,9cyclictest0-21swapper/722:47:467
1504799100,0cyclictest0-21swapper/723:35:137
1501999109,0cyclictest0-21swapper/322:45:213
1501999109,0cyclictest0-21swapper/319:30:193
1501999100,9cyclictest0-21swapper/323:57:103
1501999100,9cyclictest0-21swapper/323:35:193
18819190,7phc2sys0-21swapper/622:53:356
18819190,0phc2sys0-21swapper/623:50:116
150479998,0cyclictest0-21swapper/700:13:347
150479990,8cyclictest0-21swapper/723:56:267
150409997,1cyclictest0-21swapper/621:30:046
150199990,8cyclictest0-21swapper/322:44:523
150199990,0cyclictest0-21swapper/300:14:373
150149998,0cyclictest0-21swapper/223:57:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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