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2026-05-06 - 10:27

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 May 06, 2026 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391960,37ptp4l0-21swapper/019:05:230
202022660,0sleep20-21swapper/221:13:072
111391610,5ptp4l0-21swapper/419:09:374
111391610,30ptp4l0-21swapper/119:09:581
2568626037,7sleep70-21swapper/719:06:027
20852600,0sleep40-21swapper/400:27:444
2586925340,9sleep60-21swapper/619:08:186
2588325242,6sleep20-21swapper/219:08:302
1881915236,10phc2sys0-21swapper/319:08:423
2571024534,6sleep50-21swapper/519:06:175
111391390,0ptp4l0-21swapper/123:31:511
111391340,0ptp4l0-21swapper/422:15:194
111391340,0ptp4l0-21swapper/421:51:584
111391340,0ptp4l0-21swapper/420:35:194
111391340,0ptp4l0-21swapper/100:18:131
111391330,1ptp4l28052-21grep20:20:194
111391330,0ptp4l0-21swapper/422:44:404
111391330,0ptp4l0-21swapper/421:31:584
111391330,0ptp4l0-21swapper/421:27:564
111391330,0ptp4l0-21swapper/421:23:374
111391330,0ptp4l0-21swapper/419:15:184
111391330,0ptp4l0-21swapper/400:19:164
111391330,0ptp4l0-21swapper/121:50:091
111391330,0ptp4l0-21swapper/119:25:151
111391330,0ptp4l0-21swapper/023:43:420
111391320,0ptp4l0-21swapper/422:00:344
111391320,0ptp4l0-21swapper/121:20:241
111391320,0ptp4l0-21swapper/022:34:000
111391310,0ptp4l0-21swapper/423:57:284
111391310,0ptp4l0-21swapper/423:35:544
111391310,0ptp4l0-21swapper/423:26:264
111391310,0ptp4l0-21swapper/423:01:114
111391310,0ptp4l0-21swapper/023:14:570
111391310,0ptp4l0-21swapper/023:04:260
111391310,0ptp4l0-21swapper/022:06:340
111391310,0ptp4l0-21swapper/022:00:180
111391310,0ptp4l0-21swapper/021:50:410
111391310,0ptp4l0-21swapper/021:09:550
111391300,3ptp4l0-21swapper/423:52:134
111391300,3ptp4l0-21swapper/021:27:260
111391300,0ptp4l0-21swapper/423:15:404
111391300,0ptp4l0-21swapper/423:15:404
111391300,0ptp4l0-21swapper/421:48:034
111391300,0ptp4l0-21swapper/421:10:584
111391300,0ptp4l0-21swapper/400:33:384
111391300,0ptp4l0-21swapper/400:06:344
111391300,0ptp4l0-21swapper/123:09:041
111391300,0ptp4l0-21swapper/122:28:461
111391300,0ptp4l0-21swapper/023:37:450
111391300,0ptp4l0-21swapper/022:17:140
111391300,0ptp4l0-21swapper/021:11:340
111391300,0ptp4l0-21swapper/000:12:030
2628999293,0cyclictest0-21swapper/519:59:135
111391290,0ptp4l0-21swapper/523:41:195
111391290,0ptp4l0-21swapper/521:55:205
111391290,0ptp4l0-21swapper/423:13:424
111391290,0ptp4l0-21swapper/422:38:034
111391290,0ptp4l0-21swapper/421:36:074
111391290,0ptp4l0-21swapper/123:36:331
111391290,0ptp4l0-21swapper/123:18:251
111391290,0ptp4l0-21swapper/123:18:241
111391290,0ptp4l0-21swapper/121:55:591
111391290,0ptp4l0-21swapper/121:31:251
111391290,0ptp4l0-21swapper/023:48:320
111391290,0ptp4l0-21swapper/023:32:100
111391290,0ptp4l0-21swapper/022:46:480
111391290,0ptp4l0-21swapper/022:38:200
111391290,0ptp4l0-21swapper/021:36:350
111391290,0ptp4l0-21swapper/021:33:420
111391290,0ptp4l0-21swapper/021:19:060
111391290,0ptp4l0-21swapper/020:40:220
111391290,0ptp4l0-21swapper/020:40:210
111391290,0ptp4l0-21swapper/000:33:290
111391280,2ptp4l0-21swapper/422:10:244
111391280,0ptp4l0-21swapper/523:36:205
111391280,0ptp4l0-21swapper/521:23:055
111391280,0ptp4l0-21swapper/500:22:035
111391280,0ptp4l0-21swapper/423:31:064
111391280,0ptp4l0-21swapper/420:44:564
111391280,0ptp4l0-21swapper/420:44:554
111391280,0ptp4l0-21swapper/400:35:214
111391280,0ptp4l0-21swapper/400:23:234
111391280,0ptp4l0-21swapper/400:11:274
111391280,0ptp4l0-21swapper/023:50:300
111391280,0ptp4l0-21swapper/023:24:520
111391280,0ptp4l0-21swapper/021:24:330
111391270,0ptp4l0-21swapper/523:31:415
111391270,0ptp4l0-21swapper/500:19:455
111391270,0ptp4l0-21swapper/423:42:064
111391270,0ptp4l0-21swapper/422:58:334
111391270,0ptp4l0-21swapper/421:17:094
111391270,0ptp4l0-21swapper/123:25:291
111391270,0ptp4l0-21swapper/100:39:531
111391270,0ptp4l0-21swapper/022:59:350
111391270,0ptp4l0-21swapper/022:43:060
111391270,0ptp4l0-21swapper/022:14:550
111391270,0ptp4l0-21swapper/021:43:370
111391270,0ptp4l0-21swapper/020:59:550
111391270,0ptp4l0-21swapper/020:38:230
111391270,0ptp4l0-21swapper/000:36:100
111391260,0ptp4l0-21swapper/522:57:265
111391260,0ptp4l0-21swapper/520:20:165
111391260,0ptp4l0-21swapper/520:13:235
111391260,0ptp4l0-21swapper/422:31:444
111391260,0ptp4l0-21swapper/422:08:544
111391260,0ptp4l0-21swapper/123:53:151
111391260,0ptp4l0-21swapper/123:42:251
111391260,0ptp4l0-21swapper/123:24:371
111391260,0ptp4l0-21swapper/122:04:001
111391260,0ptp4l0-21swapper/100:20:551
111391260,0ptp4l0-21swapper/019:15:140
26282992523,1cyclictest19932-21taskset23:22:124
111391250,1ptp4l10450-21sed00:39:595
111391250,0ptp4l0-21swapper/523:53:305
111391250,0ptp4l0-21swapper/522:20:545
111391250,0ptp4l0-21swapper/521:50:585
111391250,0ptp4l0-21swapper/520:25:185
111391250,0ptp4l0-21swapper/519:45:365
111391250,0ptp4l0-21swapper/519:25:105
111391250,0ptp4l0-21swapper/500:33:005
111391250,0ptp4l0-21swapper/422:52:414
111391250,0ptp4l0-21swapper/420:15:174
111391250,0ptp4l0-21swapper/420:01:204
111391250,0ptp4l0-21swapper/419:50:204
111391250,0ptp4l0-21swapper/419:31:304
111391250,0ptp4l0-21swapper/223:42:012
111391250,0ptp4l0-21swapper/120:55:141
111391250,0ptp4l0-21swapper/119:32:271
111391250,0ptp4l0-21swapper/119:20:121
111391250,0ptp4l0-21swapper/023:26:550
111391250,0ptp4l0-21swapper/023:15:210
111391250,0ptp4l0-21swapper/023:15:210
111391250,0ptp4l0-21swapper/022:26:450
111391250,0ptp4l0-21swapper/022:20:130
111391250,0ptp4l0-21swapper/021:58:090
111391250,0ptp4l0-21swapper/021:01:530
111391250,0ptp4l0-21swapper/020:23:240
111391250,0ptp4l0-21swapper/019:47:490
111391250,0ptp4l0-21swapper/000:23:410
111391240,1ptp4l7325-21timerwakeupswit20:45:201
111391240,1ptp4l6354-21latency_hist23:05:005
111391240,1ptp4l28382-21latency_hist19:15:000
111391240,1ptp4l26556-21cpuspeed_turbos19:10:131
111391240,1ptp4l25270-21latency20:15:140
111391240,1ptp4l20235-21fw_forwarded_lo20:05:140
111391240,0ptp4l0-21swapper/523:47:265
111391240,0ptp4l0-21swapper/523:09:475
111391240,0ptp4l0-21swapper/522:45:115
111391240,0ptp4l0-21swapper/521:40:165
111391240,0ptp4l0-21swapper/520:52:275
111391240,0ptp4l0-21swapper/519:53:295
111391240,0ptp4l0-21swapper/500:04:015
111391240,0ptp4l0-21swapper/421:59:364
111391240,0ptp4l0-21swapper/421:40:584
111391240,0ptp4l0-21swapper/421:05:144
111391240,0ptp4l0-21swapper/421:04:434
111391240,0ptp4l0-21swapper/420:50:204
111391240,0ptp4l0-21swapper/419:42:334
111391240,0ptp4l0-21swapper/419:35:194
111391240,0ptp4l0-21swapper/419:26:064
111391240,0ptp4l0-21swapper/221:20:142
111391240,0ptp4l0-21swapper/122:20:191
111391240,0ptp4l0-21swapper/122:10:141
111391240,0ptp4l0-21swapper/120:25:271
111391240,0ptp4l0-21swapper/120:13:521
111391240,0ptp4l0-21swapper/120:07:271
111391240,0ptp4l0-21swapper/119:45:151
111391240,0ptp4l0-21swapper/100:28:571
111391240,0ptp4l0-21swapper/021:48:040
111391240,0ptp4l0-21swapper/020:33:510
111391240,0ptp4l0-21swapper/020:27:200
111391240,0ptp4l0-21swapper/020:00:110
111391240,0ptp4l0-21swapper/019:52:110
111391240,0ptp4l0-21swapper/019:21:150
111391240,0ptp4l0-21swapper/000:25:210
111391230,1ptp4l30311-21/usr/sbin/munin22:10:115
111391230,1ptp4l1061-21snmpd22:51:585
111391230,0ptp4l17027-21diskmemload23:20:126
111391230,0ptp4l0-21swapper/523:16:545
111391230,0ptp4l0-21swapper/523:16:535
111391230,0ptp4l0-21swapper/521:25:165
111391230,0ptp4l0-21swapper/521:05:165
111391230,0ptp4l0-21swapper/521:00:155
111391230,0ptp4l0-21swapper/520:55:135
111391230,0ptp4l0-21swapper/520:45:155
111391230,0ptp4l0-21swapper/520:30:205
111391230,0ptp4l0-21swapper/519:40:165
111391230,0ptp4l0-21swapper/519:22:285
111391230,0ptp4l0-21swapper/519:10:175
111391230,0ptp4l0-21swapper/500:29:165
111391230,0ptp4l0-21swapper/423:45:164
111391230,0ptp4l0-21swapper/422:25:134
111391230,0ptp4l0-21swapper/420:35:014
111391230,0ptp4l0-21swapper/420:05:224
111391230,0ptp4l0-21swapper/419:55:154
111391230,0ptp4l0-21swapper/419:20:114
111391230,0ptp4l0-21swapper/419:11:084
111391230,0ptp4l0-21swapper/223:20:132
111391230,0ptp4l0-21swapper/223:00:142
111391230,0ptp4l0-21swapper/122:55:201
111391230,0ptp4l0-21swapper/122:55:011
111391230,0ptp4l0-21swapper/122:45:161
111391230,0ptp4l0-21swapper/121:40:181
111391230,0ptp4l0-21swapper/121:00:131
111391230,0ptp4l0-21swapper/120:30:161
111391230,0ptp4l0-21swapper/119:40:181
111391230,0ptp4l0-21swapper/119:35:151
111391230,0ptp4l0-21swapper/100:15:001
111391230,0ptp4l0-21swapper/100:00:321
111391230,0ptp4l0-21swapper/023:55:110
111391230,0ptp4l0-21swapper/022:50:170
111391230,0ptp4l0-21swapper/019:55:320
111391230,0ptp4l0-21swapper/019:35:110
111391230,0ptp4l0-21swapper/019:30:490
111391230,0ptp4l0-21swapper/000:15:120
111391230,0ptp4l0-21swapper/000:03:130
111391220,0ptp4l0-21swapper/622:31:016
111391220,0ptp4l0-21swapper/622:01:276
111391220,0ptp4l0-21swapper/621:48:346
111391220,0ptp4l0-21swapper/523:55:325
111391220,0ptp4l0-21swapper/523:28:185
111391220,0ptp4l0-21swapper/523:22:205
111391220,0ptp4l0-21swapper/523:10:145
111391220,0ptp4l0-21swapper/522:42:485
111391220,0ptp4l0-21swapper/522:27:405
111391220,0ptp4l0-21swapper/522:17:395
111391220,0ptp4l0-21swapper/522:05:455
111391220,0ptp4l0-21swapper/522:03:065
111391220,0ptp4l0-21swapper/521:47:205
111391220,0ptp4l0-21swapper/521:17:575
111391220,0ptp4l0-21swapper/520:07:255
111391220,0ptp4l0-21swapper/519:35:175
111391220,0ptp4l0-21swapper/500:07:095
111391220,0ptp4l0-21swapper/423:06:044
111391220,0ptp4l0-21swapper/422:46:254
111391220,0ptp4l0-21swapper/422:20:114
111391220,0ptp4l0-21swapper/420:10:204
111391220,0ptp4l0-21swapper/419:47:024
111391220,0ptp4l0-21swapper/400:02:384
111391220,0ptp4l0-21swapper/223:07:092
111391220,0ptp4l0-21swapper/221:48:332
111391220,0ptp4l0-21swapper/123:56:541
111391220,0ptp4l0-21swapper/123:10:171
111391220,0ptp4l0-21swapper/122:35:131
111391220,0ptp4l0-21swapper/122:32:461
111391220,0ptp4l0-21swapper/122:17:271
111391220,0ptp4l0-21swapper/121:25:151
111391220,0ptp4l0-21swapper/121:15:421
111391220,0ptp4l0-21swapper/121:12:121
111391220,0ptp4l0-21swapper/121:05:161
111391220,0ptp4l0-21swapper/120:42:451
111391220,0ptp4l0-21swapper/120:42:451
111391220,0ptp4l0-21swapper/120:20:141
111391220,0ptp4l0-21swapper/100:30:041
111391220,0ptp4l0-21swapper/100:06:591
111391220,0ptp4l0-21swapper/023:06:120
111391220,0ptp4l0-21swapper/020:10:200
111391220,0ptp4l0-21swapper/019:29:430
111391220,0ptp4l0-21swapper/000:05:120
111391210,0ptp4l25-21ksoftirqd/123:47:221
111391210,0ptp4l0-21swapper/623:41:596
111391210,0ptp4l0-21swapper/623:00:186
111391210,0ptp4l0-21swapper/522:32:455
111391210,0ptp4l0-21swapper/521:30:495
111391210,0ptp4l0-21swapper/222:31:002
111391210,0ptp4l0-21swapper/221:35:582
111391210,0ptp4l0-21swapper/123:04:501
111391210,0ptp4l0-21swapper/121:45:301
111391210,0ptp4l0-21swapper/020:50:000
2628999203,0cyclictest0-21swapper/520:00:085
111391200,0ptp4l0-21swapper/522:35:125
111391200,0ptp4l0-21swapper/519:33:375
111391200,0ptp4l0-21swapper/500:11:445
111391200,0ptp4l0-21swapper/222:52:122
111391200,0ptp4l0-21swapper/122:42:471
111391200,0ptp4l0-21swapper/122:05:481
111391200,0ptp4l0-21swapper/121:39:251
111391200,0ptp4l0-21swapper/019:42:360
111391190,0ptp4l0-21swapper/521:12:105
111391190,0ptp4l0-21swapper/222:01:242
111391190,0ptp4l0-21swapper/120:54:551
111391190,0ptp4l0-21swapper/120:16:081
226962180,0sleep60-21swapper/621:15:206
111391180,0ptp4l0-21swapper/723:32:507
111391180,0ptp4l0-21swapper/722:49:027
111391180,0ptp4l0-21swapper/521:39:595
111391180,0ptp4l0-21swapper/520:18:055
111391180,0ptp4l0-21swapper/322:45:553
111391180,0ptp4l0-21swapper/119:15:581
111391180,0ptp4l0-21swapper/020:47:230
111391170,1ptp4l12135-21sshd20:56:172
111391170,0ptp4l0-21swapper/623:07:186
111391170,0ptp4l0-21swapper/621:35:586
111391170,0ptp4l0-21swapper/420:59:534
111391160,0ptp4l0-21swapper/623:11:466
111391160,0ptp4l0-21swapper/519:15:235
111391160,0ptp4l0-21swapper/219:11:302
111391160,0ptp4l0-21swapper/120:04:501
111391160,0ptp4l0-21swapper/119:55:451
111391150,0ptp4l0-21swapper/722:15:547
111391150,0ptp4l0-21swapper/720:14:187
111391150,0ptp4l0-21swapper/719:44:197
111391150,0ptp4l0-21swapper/622:52:146
111391150,0ptp4l0-21swapper/621:20:166
111391150,0ptp4l0-21swapper/619:11:356
111391150,0ptp4l0-21swapper/520:41:505
111391150,0ptp4l0-21swapper/520:41:495
111391150,0ptp4l0-21swapper/420:45:024
111391150,0ptp4l0-21swapper/420:26:574
111391150,0ptp4l0-21swapper/320:14:133
111391150,0ptp4l0-21swapper/220:11:322
111391150,0ptp4l0-21swapper/220:08:152
111391150,0ptp4l0-21swapper/219:42:052
111391150,0ptp4l0-21swapper/119:50:011
2630399141,1cyclictest0-21swapper/721:18:337
26297991412,1cyclictest0-21swapper/620:10:166
111391140,0ptp4l0-21swapper/621:03:026
111391140,0ptp4l0-21swapper/620:56:136
111391140,0ptp4l0-21swapper/620:20:576
111391140,0ptp4l0-21swapper/620:19:046
111391140,0ptp4l0-21swapper/620:08:156
111391140,0ptp4l0-21swapper/619:56:526
111391140,0ptp4l0-21swapper/619:42:036
111391140,0ptp4l0-21swapper/223:11:442
111391140,0ptp4l0-21swapper/221:03:022
111391140,0ptp4l0-21swapper/220:20:572
111391140,0ptp4l0-21swapper/220:19:032
111391140,0ptp4l0-21swapper/219:56:502
2630399123,5cyclictest13371-21ssh21:45:507
2630399122,6cyclictest0-21swapper/700:31:497
2630399112,5cyclictest7198-21sh22:20:457
2630399112,5cyclictest5737-21chrt19:34:137
2630399112,5cyclictest31600-21sh23:38:427
2630399112,5cyclictest1664-21sh22:58:207
2630399112,5cyclictest1068-21runrttasks21:32:507
2630399111,6cyclictest2468-21ssh23:42:327
2630399111,6cyclictest17027-21diskmemload23:21:477
2630399111,6cyclictest17027-21diskmemload00:38:197
2630399111,6cyclictest13531-21latency_hist23:15:017
2630399111,6cyclictest10257-21ssh23:53:107
2630399111,6cyclictest0-21swapper/721:56:497
2630399110,10cyclictest0-21swapper/721:12:167
188191110,0phc2sys0-21swapper/222:17:262
2630399102,5cyclictest802-21ksmtuned00:25:097
2630399102,5cyclictest30734-21sh00:21:117
2630399102,5cyclictest0-21swapper/721:04:597
2630399102,4cyclictest23411-21sh22:44:557
2630399102,4cyclictest1068-21runrttasks23:09:527
2630399102,3cyclictest14598-21chrt19:50:237
2630399102,3cyclictest1068-21runrttasks19:20:507
2630399101,6cyclictest0-21swapper/723:03:307
2630399101,5cyclictest5737-21ssh23:46:187
2630399101,5cyclictest3597-21cut20:40:007
2630399101,5cyclictest32176-21sh21:29:447
2630399101,5cyclictest30147-21memory19:15:177
2630399101,5cyclictest2213-21irqstats19:25:157
2630399101,5cyclictest21856-21sh00:09:247
2630399101,5cyclictest17941-21sh20:00:137
2630399101,5cyclictest17027-21diskmemload00:14:107
2630399101,5cyclictest16859-21basename00:00:597
2630399101,5cyclictest11373-21cat21:45:007
2630399100,6cyclictest5607-21timerandwakeup21:35:217
2630399100,6cyclictest18776-21latency_hist21:55:007
2630399100,6cyclictest0-21swapper/723:55:117
2630399100,6cyclictest0-21swapper/722:07:317
2630399100,5cyclictest0-21swapper/723:17:147
2630399100,5cyclictest0-21swapper/723:17:147
2629799100,9cyclictest0-21swapper/622:05:136
2627799109,0cyclictest0-21swapper/323:18:403
2627799109,0cyclictest0-21swapper/323:18:393
2627799109,0cyclictest0-21swapper/322:07:563
2627799109,0cyclictest0-21swapper/321:22:403
2627799109,0cyclictest0-21swapper/300:19:103
2627799109,0cyclictest0-21swapper/300:08:473
2627799108,1cyclictest0-21swapper/322:14:333
2627799101,3cyclictest121rcu_preempt23:52:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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