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2026-04-15 - 10:14

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 Apr 15, 2026 00:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391690,37ptp4l0-21swapper/119:07:491
54092630,0sleep20-21swapper/222:38:212
111391610,6ptp4l0-21swapper/019:05:190
1881916028,26phc2sys0-21swapper/419:05:164
1521326038,7sleep20-21swapper/219:07:012
1353626050,6sleep70-21swapper/719:05:067
137542580,0sleep00-21swapper/021:19:380
1529025038,7sleep60-21swapper/619:08:006
1510524736,7sleep30-21swapper/319:05:333
1521624634,7sleep50-21swapper/519:07:045
111391340,0ptp4l0-21swapper/423:25:154
111391330,0ptp4l0-21swapper/419:40:214
111391310,0ptp4l0-21swapper/500:00:215
111391310,0ptp4l0-21swapper/423:19:554
111391310,0ptp4l0-21swapper/422:40:174
111391310,0ptp4l0-21swapper/422:36:024
111391310,0ptp4l0-21swapper/422:11:394
111391310,0ptp4l0-21swapper/421:12:204
111391310,0ptp4l0-21swapper/021:27:330
111391300,0ptp4l0-21swapper/422:59:204
111391300,0ptp4l0-21swapper/422:20:204
111391300,0ptp4l0-21swapper/422:16:054
111391300,0ptp4l0-21swapper/419:50:144
111391300,0ptp4l0-21swapper/419:25:014
111391300,0ptp4l0-21swapper/400:37:484
111391300,0ptp4l0-21swapper/400:37:484
111391300,0ptp4l0-21swapper/321:54:063
111391300,0ptp4l0-21swapper/321:25:173
111391290,0ptp4l0-21swapper/423:32:304
111391290,0ptp4l0-21swapper/421:58:594
111391290,0ptp4l0-21swapper/400:00:104
111391290,0ptp4l0-21swapper/122:39:511
111391280,1ptp4l7527-21ssh00:14:224
111391280,0ptp4l0-21swapper/423:45:394
111391280,0ptp4l0-21swapper/423:11:344
111391280,0ptp4l0-21swapper/400:27:324
111391280,0ptp4l0-21swapper/122:25:111
111391280,0ptp4l0-21swapper/100:01:331
111391270,0ptp4l21662-21ssh23:45:541
111391270,0ptp4l0-21swapper/423:55:224
111391260,3ptp4l321ktimersoftd/200:25:032
111391260,1ptp4l2402-21awk22:35:000
111391260,0ptp4l0-21swapper/423:03:124
111391260,0ptp4l0-21swapper/419:10:114
111391260,0ptp4l0-21swapper/400:30:314
111391260,0ptp4l0-21swapper/223:39:122
111391260,0ptp4l0-21swapper/123:31:121
111391260,0ptp4l0-21swapper/000:25:130
111391250,2ptp4l23997-21sh21:33:200
111391250,2ptp4l0-21swapper/722:52:077
111391250,1ptp4l0-21swapper/422:25:134
111391250,0ptp4l0-21swapper/623:34:196
111391250,0ptp4l0-21swapper/522:47:035
111391250,0ptp4l0-21swapper/521:38:055
111391250,0ptp4l0-21swapper/500:13:235
111391250,0ptp4l0-21swapper/423:41:504
111391250,0ptp4l0-21swapper/421:00:174
111391250,0ptp4l0-21swapper/420:15:164
111391250,0ptp4l0-21swapper/222:23:092
111391250,0ptp4l0-21swapper/122:49:421
111391250,0ptp4l0-21swapper/122:44:291
111391250,0ptp4l0-21swapper/120:35:141
111391250,0ptp4l0-21swapper/100:33:221
111391250,0ptp4l0-21swapper/023:20:130
111391250,0ptp4l0-21swapper/019:15:140
111391240,1ptp4l6943-21/usr/sbin/munin21:55:150
111391240,1ptp4l32092-21/usr/sbin/munin21:45:164
111391240,1ptp4l24648-21sed21:35:006
111391240,1ptp4l23441-21fw_packets20:35:145
111391240,1ptp4l17995-21munin-node22:35:210
111391240,1ptp4l17682-21cat21:25:005
111391240,1ptp4l10687-21entropy22:00:125
111391240,1ptp4l10687-21entropy22:00:115
111391240,0ptp4l0-21swapper/523:46:055
111391240,0ptp4l0-21swapper/523:05:115
111391240,0ptp4l0-21swapper/522:55:135
111391240,0ptp4l0-21swapper/522:15:125
111391240,0ptp4l0-21swapper/519:15:005
111391240,0ptp4l0-21swapper/423:53:504
111391240,0ptp4l0-21swapper/423:35:184
111391240,0ptp4l0-21swapper/423:20:134
111391240,0ptp4l0-21swapper/422:46:244
111391240,0ptp4l0-21swapper/422:01:524
111391240,0ptp4l0-21swapper/422:01:524
111391240,0ptp4l0-21swapper/421:51:194
111391240,0ptp4l0-21swapper/421:20:514
111391240,0ptp4l0-21swapper/420:27:224
111391240,0ptp4l0-21swapper/420:20:114
111391240,0ptp4l0-21swapper/419:38:124
111391240,0ptp4l0-21swapper/419:15:124
111391240,0ptp4l0-21swapper/122:00:151
111391240,0ptp4l0-21swapper/122:00:151
111391240,0ptp4l0-21swapper/121:10:351
111391240,0ptp4l0-21swapper/023:40:170
111391240,0ptp4l0-21swapper/022:20:190
111391240,0ptp4l0-21swapper/022:05:210
111391240,0ptp4l0-21swapper/020:45:130
111391240,0ptp4l0-21swapper/020:40:210
111391240,0ptp4l0-21swapper/000:15:110
111391230,1ptp4l30722-21hostname00:00:140
111391230,1ptp4l25674-21ssh23:52:191
111391230,0ptp4l29720-21latency_hist20:50:004
111391230,0ptp4l29696-21mailstats21:40:175
111391230,0ptp4l0-21swapper/723:17:137
111391230,0ptp4l0-21swapper/721:31:497
111391230,0ptp4l0-21swapper/721:25:197
111391230,0ptp4l0-21swapper/623:39:176
111391230,0ptp4l0-21swapper/623:13:496
111391230,0ptp4l0-21swapper/621:15:146
111391230,0ptp4l0-21swapper/620:15:326
111391230,0ptp4l0-21swapper/619:25:146
111391230,0ptp4l0-21swapper/522:37:155
111391230,0ptp4l0-21swapper/522:30:155
111391230,0ptp4l0-21swapper/522:20:145
111391230,0ptp4l0-21swapper/522:08:055
111391230,0ptp4l0-21swapper/521:55:135
111391230,0ptp4l0-21swapper/521:05:135
111391230,0ptp4l0-21swapper/520:55:135
111391230,0ptp4l0-21swapper/520:25:135
111391230,0ptp4l0-21swapper/520:10:125
111391230,0ptp4l0-21swapper/519:45:175
111391230,0ptp4l0-21swapper/519:30:125
111391230,0ptp4l0-21swapper/500:20:165
111391230,0ptp4l0-21swapper/423:05:164
111391230,0ptp4l0-21swapper/422:50:134
111391230,0ptp4l0-21swapper/422:33:204
111391230,0ptp4l0-21swapper/422:06:224
111391230,0ptp4l0-21swapper/421:39:564
111391230,0ptp4l0-21swapper/421:30:104
111391230,0ptp4l0-21swapper/421:15:204
111391230,0ptp4l0-21swapper/420:13:174
111391230,0ptp4l0-21swapper/420:05:124
111391230,0ptp4l0-21swapper/420:00:204
111391230,0ptp4l0-21swapper/419:55:154
111391230,0ptp4l0-21swapper/400:21:364
111391230,0ptp4l0-21swapper/400:15:164
111391230,0ptp4l0-21swapper/400:05:134
111391230,0ptp4l0-21swapper/322:52:133
111391230,0ptp4l0-21swapper/123:39:571
111391230,0ptp4l0-21swapper/123:13:171
111391230,0ptp4l0-21swapper/122:55:131
111391230,0ptp4l0-21swapper/122:13:351
111391230,0ptp4l0-21swapper/121:55:181
111391230,0ptp4l0-21swapper/121:54:591
111391230,0ptp4l0-21swapper/121:49:051
111391230,0ptp4l0-21swapper/121:40:151
111391230,0ptp4l0-21swapper/120:25:201
111391230,0ptp4l0-21swapper/120:10:151
111391230,0ptp4l0-21swapper/119:45:151
111391230,0ptp4l0-21swapper/119:30:121
111391230,0ptp4l0-21swapper/100:25:141
111391230,0ptp4l0-21swapper/100:20:571
111391230,0ptp4l0-21swapper/100:19:011
111391230,0ptp4l0-21swapper/100:05:051
111391230,0ptp4l0-21swapper/023:55:170
111391230,0ptp4l0-21swapper/023:45:170
111391230,0ptp4l0-21swapper/023:35:110
111391230,0ptp4l0-21swapper/023:15:000
111391230,0ptp4l0-21swapper/023:12:010
111391230,0ptp4l0-21swapper/023:05:010
111391230,0ptp4l0-21swapper/023:00:190
111391230,0ptp4l0-21swapper/022:50:110
111391230,0ptp4l0-21swapper/022:10:140
111391230,0ptp4l0-21swapper/022:01:100
111391230,0ptp4l0-21swapper/022:01:100
111391230,0ptp4l0-21swapper/021:50:180
111391230,0ptp4l0-21swapper/021:45:170
111391230,0ptp4l0-21swapper/021:43:110
111391230,0ptp4l0-21swapper/021:20:150
111391230,0ptp4l0-21swapper/021:10:150
111391230,0ptp4l0-21swapper/021:00:200
111391230,0ptp4l0-21swapper/020:25:000
111391230,0ptp4l0-21swapper/020:15:140
111391230,0ptp4l0-21swapper/019:55:010
111391230,0ptp4l0-21swapper/019:40:130
111391230,0ptp4l0-21swapper/019:35:130
111391230,0ptp4l0-21swapper/019:20:140
111391230,0ptp4l0-21swapper/019:20:140
111391230,0ptp4l0-21swapper/019:10:190
111391230,0ptp4l0-21swapper/000:35:100
111391230,0ptp4l0-21swapper/000:35:100
111391230,0ptp4l0-21swapper/000:30:170
111391230,0ptp4l0-21swapper/000:23:470
111391230,0ptp4l0-21swapper/000:10:130
111391230,0ptp4l0-21swapper/000:05:180
15738992218,0cyclictest0-21swapper/519:57:425
111391220,1ptp4l29989-21timerwakeupswit21:40:184
111391220,1ptp4l24090-21ssh00:38:045
111391220,1ptp4l24090-21ssh00:38:045
111391220,0ptp4l6475-21diskmemload22:25:535
111391220,0ptp4l0-21swapper/721:54:047
111391220,0ptp4l0-21swapper/623:04:446
111391220,0ptp4l0-21swapper/622:40:316
111391220,0ptp4l0-21swapper/622:18:576
111391220,0ptp4l0-21swapper/600:17:216
111391220,0ptp4l0-21swapper/523:59:245
111391220,0ptp4l0-21swapper/523:39:335
111391220,0ptp4l0-21swapper/523:29:145
111391220,0ptp4l0-21swapper/522:54:375
111391220,0ptp4l0-21swapper/522:41:295
111391220,0ptp4l0-21swapper/522:13:345
111391220,0ptp4l0-21swapper/521:54:535
111391220,0ptp4l0-21swapper/521:28:555
111391220,0ptp4l0-21swapper/521:10:185
111391220,0ptp4l0-21swapper/520:45:155
111391220,0ptp4l0-21swapper/520:43:105
111391220,0ptp4l0-21swapper/520:30:115
111391220,0ptp4l0-21swapper/500:08:165
111391220,0ptp4l0-21swapper/421:25:074
111391220,0ptp4l0-21swapper/421:05:194
111391220,0ptp4l0-21swapper/420:50:154
111391220,0ptp4l0-21swapper/420:40:134
111391220,0ptp4l0-21swapper/420:37:374
111391220,0ptp4l0-21swapper/419:45:574
111391220,0ptp4l0-21swapper/419:20:134
111391220,0ptp4l0-21swapper/419:20:124
111391220,0ptp4l0-21swapper/323:22:453
111391220,0ptp4l0-21swapper/323:16:503
111391220,0ptp4l0-21swapper/321:37:293
111391220,0ptp4l0-21swapper/321:31:573
111391220,0ptp4l0-21swapper/319:33:233
111391220,0ptp4l0-21swapper/222:10:332
111391220,0ptp4l0-21swapper/221:41:262
111391220,0ptp4l0-21swapper/123:59:251
111391220,0ptp4l0-21swapper/123:40:131
111391220,0ptp4l0-21swapper/123:29:071
111391220,0ptp4l0-21swapper/123:24:311
111391220,0ptp4l0-21swapper/123:07:501
111391220,0ptp4l0-21swapper/122:54:011
111391220,0ptp4l0-21swapper/122:30:181
111391220,0ptp4l0-21swapper/122:24:071
111391220,0ptp4l0-21swapper/122:15:111
111391220,0ptp4l0-21swapper/122:05:541
111391220,0ptp4l0-21swapper/121:37:491
111391220,0ptp4l0-21swapper/121:29:161
111391220,0ptp4l0-21swapper/121:16:381
111391220,0ptp4l0-21swapper/121:05:151
111391220,0ptp4l0-21swapper/120:55:121
111391220,0ptp4l0-21swapper/120:30:121
111391220,0ptp4l0-21swapper/119:25:191
111391220,0ptp4l0-21swapper/100:38:011
111391220,0ptp4l0-21swapper/100:38:011
111391220,0ptp4l0-21swapper/023:50:090
111391220,0ptp4l0-21swapper/023:30:060
111391220,0ptp4l0-21swapper/023:25:150
111391220,0ptp4l0-21swapper/022:58:110
111391220,0ptp4l0-21swapper/022:45:120
111391220,0ptp4l0-21swapper/022:40:170
111391220,0ptp4l0-21swapper/022:25:160
111391220,0ptp4l0-21swapper/022:16:440
111391220,0ptp4l0-21swapper/021:35:160
111391220,0ptp4l0-21swapper/021:05:180
111391220,0ptp4l0-21swapper/020:55:010
111391220,0ptp4l0-21swapper/020:50:140
111391220,0ptp4l0-21swapper/020:25:160
111391220,0ptp4l0-21swapper/020:05:190
111391220,0ptp4l0-21swapper/020:00:120
111391220,0ptp4l0-21swapper/019:55:110
111391220,0ptp4l0-21swapper/019:25:120
111391210,3ptp4l0-21swapper/719:32:387
111391210,0ptp4l0-21swapper/721:43:497
111391210,0ptp4l0-21swapper/720:50:467
111391210,0ptp4l0-21swapper/720:42:097
111391210,0ptp4l0-21swapper/622:58:286
111391210,0ptp4l0-21swapper/621:13:476
111391210,0ptp4l0-21swapper/600:32:086
111391210,0ptp4l0-21swapper/523:51:075
111391210,0ptp4l0-21swapper/523:40:125
111391210,0ptp4l0-21swapper/523:12:405
111391210,0ptp4l0-21swapper/523:03:095
111391210,0ptp4l0-21swapper/521:46:015
111391210,0ptp4l0-21swapper/521:34:365
111391210,0ptp4l0-21swapper/521:16:545
111391210,0ptp4l0-21swapper/520:54:105
111391210,0ptp4l0-21swapper/520:19:365
111391210,0ptp4l0-21swapper/519:17:255
111391210,0ptp4l0-21swapper/500:32:005
111391210,0ptp4l0-21swapper/420:55:344
111391210,0ptp4l0-21swapper/419:32:234
111391210,0ptp4l0-21swapper/223:40:502
111391210,0ptp4l0-21swapper/223:28:522
111391210,0ptp4l0-21swapper/223:02:222
111391210,0ptp4l0-21swapper/222:40:342
111391210,0ptp4l0-21swapper/222:17:332
111391210,0ptp4l0-21swapper/221:35:042
111391210,0ptp4l0-21swapper/221:14:022
111391210,0ptp4l0-21swapper/123:04:281
111391210,0ptp4l0-21swapper/121:34:341
111391210,0ptp4l0-21swapper/121:21:051
111391210,0ptp4l0-21swapper/120:45:181
111391210,0ptp4l0-21swapper/120:18:071
111391210,0ptp4l0-21swapper/119:23:201
111391210,0ptp4l0-21swapper/119:23:191
111391210,0ptp4l0-21swapper/020:10:160
111391210,0ptp4l0-21swapper/019:45:120
111391200,0ptp4l0-21swapper/723:22:597
111391200,0ptp4l0-21swapper/721:37:167
111391200,0ptp4l0-21swapper/623:21:096
111391200,0ptp4l0-21swapper/622:23:106
111391200,0ptp4l0-21swapper/622:10:356
111391200,0ptp4l0-21swapper/621:41:306
111391200,0ptp4l0-21swapper/621:22:156
111391200,0ptp4l0-21swapper/520:06:155
111391200,0ptp4l0-21swapper/519:36:595
111391200,0ptp4l0-21swapper/519:25:205
111391200,0ptp4l0-21swapper/519:22:155
111391200,0ptp4l0-21swapper/519:22:155
111391200,0ptp4l0-21swapper/500:28:245
111391200,0ptp4l0-21swapper/500:16:295
111391200,0ptp4l0-21swapper/323:06:493
111391200,0ptp4l0-21swapper/320:41:093
111391200,0ptp4l0-21swapper/223:13:432
111391200,0ptp4l0-21swapper/222:58:212
111391200,0ptp4l0-21swapper/221:22:182
111391200,0ptp4l0-21swapper/123:18:581
111391200,0ptp4l0-21swapper/120:44:101
111391190,2ptp4l121rcu_preempt19:16:201
111391190,0ptp4l0-21swapper/619:58:096
111391190,0ptp4l0-21swapper/619:20:096
111391190,0ptp4l0-21swapper/619:20:086
111391190,0ptp4l0-21swapper/523:19:025
111391190,0ptp4l0-21swapper/420:32:164
111391190,0ptp4l0-21swapper/223:34:332
111391190,0ptp4l0-21swapper/223:21:022
111391190,0ptp4l0-21swapper/221:34:582
111391190,0ptp4l0-21swapper/220:26:022
111391190,0ptp4l0-21swapper/200:32:102
111391190,0ptp4l0-21swapper/200:17:172
111391190,0ptp4l0-21swapper/120:23:161
111391190,0ptp4l0-21swapper/100:13:321
15738991815,0cyclictest0-21swapper/519:53:215
111391180,0ptp4l0-21swapper/622:37:426
111391180,0ptp4l0-21swapper/600:25:026
111391180,0ptp4l0-21swapper/520:04:055
111391180,0ptp4l0-21swapper/222:04:592
111391180,0ptp4l0-21swapper/222:04:582
111391180,0ptp4l0-21swapper/220:24:052
111391170,0ptp4l0-21swapper/622:05:006
111391170,0ptp4l0-21swapper/622:05:006
111391170,0ptp4l0-21swapper/621:35:026
111391170,0ptp4l0-21swapper/523:31:125
111391170,0ptp4l0-21swapper/321:43:493
111391170,0ptp4l0-21swapper/300:28:483
111391170,0ptp4l0-21swapper/120:53:461
111391170,0ptp4l0-21swapper/120:07:271
111391170,0ptp4l0-21swapper/119:58:131
15738991612,0cyclictest0-21swapper/519:40:225
111391160,1ptp4l0-21swapper/619:49:146
111391160,0ptp4l101ktimersoftd/020:38:230
111391160,0ptp4l0-21swapper/621:51:306
111391160,0ptp4l0-21swapper/523:24:325
111391160,0ptp4l0-21swapper/520:23:125
111391160,0ptp4l0-21swapper/320:52:263
111391160,0ptp4l0-21swapper/121:02:491
111391160,0ptp4l0-21swapper/120:01:461
111391160,0ptp4l0-21swapper/119:53:371
111391160,0ptp4l0-21swapper/119:36:291
111391160,0ptp4l0-21swapper/020:31:110
1571799150,1cyclictest0-21swapper/222:05:122
111391150,0ptp4l0-21swapper/723:06:457
111391150,0ptp4l0-21swapper/719:40:317
111391150,0ptp4l0-21swapper/719:13:217
111391150,0ptp4l0-21swapper/623:28:546
111391150,0ptp4l0-21swapper/623:18:396
111391150,0ptp4l0-21swapper/620:23:366
111391150,0ptp4l0-21swapper/619:10:026
111391150,0ptp4l0-21swapper/521:02:235
111391150,0ptp4l0-21swapper/319:40:303
111391150,0ptp4l0-21swapper/319:13:253
111391150,0ptp4l0-21swapper/221:09:342
111391150,0ptp4l0-21swapper/221:03:472
111391150,0ptp4l0-21swapper/220:15:282
111391150,0ptp4l0-21swapper/219:58:072
111391150,0ptp4l0-21swapper/219:27:362
111391150,0ptp4l0-21swapper/219:20:082
111391150,0ptp4l0-21swapper/219:20:072
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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