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2026-01-11 - 02:03

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack3slot6s.osadl.org (updated Sun Jan 11, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5494212096,17sleep20-21swapper/219:05:122
7246211492,16sleep30-21swapper/319:07:473
7312211395,13sleep10-21swapper/119:08:361
7100210080,15sleep00-21swapper/019:06:020
320432810,0sleep00-21swapper/023:05:250
256412790,1sleep10-21swapper/121:10:431
213132760,0sleep20-21swapper/221:42:182
274482740,0sleep00-21swapper/000:11:150
187322690,1sleep30-21swapper/322:50:293
198302250,0sleep20-21swapper/223:28:002
746699220,2cyclictest0-21swapper/322:55:163
145062220,1sleep30-21swapper/300:33:033
7464992117,2cyclictest0-21swapper/122:35:171
746499210,19cyclictest0-21swapper/123:20:111
746699182,6cyclictest0-21swapper/321:50:003
746599171,14cyclictest28275-21hddtemp_smartct21:50:152
746599170,15cyclictest0-21swapper/223:32:352
746399170,15cyclictest28080-21cpuspeed_turbos20:00:140
7466991612,2cyclictest0-21swapper/321:30:063
7466991611,3cyclictest0-21swapper/300:18:053
746699160,12cyclictest0-21swapper/323:06:103
746599161,13cyclictest26891-21ssh21:49:142
746599161,13cyclictest0-21swapper/220:10:162
746499160,3cyclictest0-21swapper/100:21:411
746399161,3cyclictest32562-21munin-run21:20:000
746399160,14cyclictest0-21swapper/021:55:340
746399160,14cyclictest0-21swapper/000:31:240
76872150,2sleep00-21swapper/022:03:170
746699151,3cyclictest32158-21munin-node3
7466991512,2cyclictest0-21swapper/321:42:463
746699151,12cyclictest6764-21aten2.4-expect00:25:123
746699151,12cyclictest15079-21ssh22:47:043
746699151,12cyclictest15079-21ssh22:47:043
746699150,13cyclictest12743-21sh22:09:193
746699150,13cyclictest0-21swapper/322:35:363
7465991512,2cyclictest25736-21kworker/u8:223:19:052
7465991512,2cyclictest0-21swapper/223:12:552
7465991512,2cyclictest0-21swapper/219:10:252
7465991511,2cyclictest12868-21ssh00:30:252
746599150,2cyclictest0-21swapper/221:20:142
746599150,14cyclictest0-21swapper/221:34:352
746599150,13cyclictest1938-21ssh23:08:562
746599150,13cyclictest0-21swapper/222:22:252
746499151,2cyclictest0-21swapper/123:51:131
7464991512,2cyclictest0-21swapper/123:33:111
7464991512,2cyclictest0-21swapper/122:02:111
746499151,12cyclictest18612-21http_loadtime22:15:161
7464991510,3cyclictest2881-21ssh23:10:111
7464991510,3cyclictest0-21swapper/120:10:141
746499150,2cyclictest0-21swapper/122:44:411
746499150,13cyclictest26843-21fschecks_time23:00:131
746499150,13cyclictest0-21swapper/119:40:121
746399150,2cyclictest23611-21diskmemload21:29:040
746399150,14cyclictest0-21swapper/021:49:040
746399150,13cyclictest23611-21diskmemload23:17:040
746399150,13cyclictest0-21swapper/022:07:140
123842150,2sleep00-21swapper/021:32:430
746699149,3cyclictest0-21swapper/319:30:233
7466991411,2cyclictest0-21swapper/321:54:163
7466991410,2cyclictest426-21ssh21:20:113
7466991410,2cyclictest0-21swapper/322:30:153
746699140,13cyclictest0-21swapper/323:27:163
746699140,12cyclictest30562-21ssh22:29:013
746699140,12cyclictest0-21swapper/323:54:053
746699140,12cyclictest0-21swapper/323:21:533
746699140,12cyclictest0-21swapper/323:17:163
746699140,12cyclictest0-21swapper/322:20:003
746699140,12cyclictest0-21swapper/320:50:113
746699140,12cyclictest0-21swapper/300:36:553
746699140,12cyclictest0-21swapper/300:12:273
746599141,3cyclictest22866-21ssh00:06:082
746599141,3cyclictest0-21swapper/222:49:082
746599141,3cyclictest0-21swapper/222:49:082
7465991411,2cyclictest13400-21kworker/u8:121:55:052
7465991411,2cyclictest0-21swapper/222:16:552
7465991411,2cyclictest0-21swapper/220:35:112
7465991411,2cyclictest0-21swapper/200:35:452
7465991411,2cyclictest0-21swapper/200:27:252
7465991410,2cyclictest0-21swapper/220:40:112
746599140,2cyclictest0-21swapper/223:50:112
746599140,2cyclictest0-21swapper/222:30:112
746599140,2cyclictest0-21swapper/222:09:052
746599140,2cyclictest0-21swapper/219:35:252
746599140,13cyclictest23611-21diskmemload23:00:172
746599140,13cyclictest0-21swapper/223:22:452
746599140,13cyclictest0-21swapper/222:10:152
746599140,13cyclictest0-21swapper/221:35:452
746599140,13cyclictest0-21swapper/200:24:252
746599140,12cyclictest0-21swapper/223:35:112
746599140,12cyclictest0-21swapper/222:25:192
746599140,12cyclictest0-21swapper/200:12:202
746499149,3cyclictest0-21swapper/121:21:311
746499141,7cyclictest0-21swapper/121:00:001
746499141,7cyclictest0-21swapper/120:20:011
7464991411,2cyclictest0-21swapper/122:53:511
7464991411,2cyclictest0-21swapper/122:47:111
7464991411,2cyclictest0-21swapper/122:47:111
7464991411,2cyclictest0-21swapper/121:45:311
7464991411,2cyclictest0-21swapper/121:18:311
7464991411,2cyclictest0-21swapper/100:03:311
746499140,2cyclictest0-21swapper/122:20:211
746499140,2cyclictest0-21swapper/121:30:071
746499140,2cyclictest0-21swapper/100:15:111
746499140,13cyclictest0-21swapper/123:05:511
746499140,13cyclictest0-21swapper/121:54:311
746499140,13cyclictest0-21swapper/119:25:111
746499140,12cyclictest23611-21diskmemload21:43:331
746499140,12cyclictest0-21swapper/121:35:141
746399141,3cyclictest2348-21runrttasks22:33:360
746399141,2cyclictest1402-21apt-get20:15:120
7463991411,2cyclictest0-21swapper/023:58:240
7463991411,2cyclictest0-21swapper/023:45:340
7463991411,2cyclictest0-21swapper/023:27:540
7463991411,2cyclictest0-21swapper/021:13:340
7463991411,2cyclictest0-21swapper/019:25:140
746399140,3cyclictest18898-21python20:55:230
746399140,2cyclictest847-21munin-node0
746399140,2cyclictest7515-21ssh22:39:340
746399140,2cyclictest0-21swapper/023:52:540
746399140,2cyclictest0-21swapper/000:00:140
746399140,13cyclictest0-21swapper/021:50:540
746399140,13cyclictest0-21swapper/000:15:340
7466991310,2cyclictest0-21swapper/323:58:273
7466991310,2cyclictest0-21swapper/323:36:113
7466991310,2cyclictest0-21swapper/322:10:583
7466991310,2cyclictest0-21swapper/322:01:073
7466991310,2cyclictest0-21swapper/321:36:263
7466991310,2cyclictest0-21swapper/321:26:393
7466991310,2cyclictest0-21swapper/321:17:163
7466991310,2cyclictest0-21swapper/300:20:343
7466991310,2cyclictest0-21swapper/300:08:003
7466991310,2cyclictest0-21swapper/300:03:573
746699130,2cyclictest0-21swapper/323:44:483
746699130,2cyclictest0-21swapper/323:31:003
746699130,2cyclictest0-21swapper/322:42:563
746699130,2cyclictest0-21swapper/321:10:193
746699130,2cyclictest0-21swapper/320:00:163
746699130,12cyclictest0-21swapper/323:46:563
746699130,12cyclictest0-21swapper/322:15:463
746699130,12cyclictest0-21swapper/321:58:193
746699130,12cyclictest0-21swapper/320:15:123
746699130,12cyclictest0-21swapper/319:25:183
7465991310,2cyclictest23611-21diskmemload23:46:332
7465991310,2cyclictest23611-21diskmemload21:14:142
7465991310,2cyclictest0-21swapper/222:58:092
7465991310,2cyclictest0-21swapper/222:50:172
7465991310,2cyclictest0-21swapper/222:36:112
7465991310,2cyclictest0-21swapper/221:15:262
7465991310,2cyclictest0-21swapper/200:15:522
7465991310,2cyclictest0-21swapper/200:00:402
746599130,2cyclictest23611-21diskmemload21:26:562
746599130,2cyclictest13171-21wc23:55:252
746599130,2cyclictest0-21swapper/222:03:202
746599130,2cyclictest0-21swapper/219:15:242
746599130,12cyclictest0-21swapper/220:20:192
746599130,12cyclictest0-21swapper/219:55:122
746499138,2cyclictest0-21swapper/122:34:411
746499132,7cyclictest0-21swapper/119:15:001
7464991310,2cyclictest0-21swapper/120:20:121
7464991310,2cyclictest0-21swapper/100:11:331
746499130,2cyclictest23611-21diskmemload22:13:131
746499130,2cyclictest0-21swapper/123:56:221
746499130,2cyclictest0-21swapper/122:56:431
746499130,2cyclictest0-21swapper/100:38:431
746499130,2cyclictest0-21swapper/100:33:231
746499130,12cyclictest0-21swapper/123:42:111
746499130,12cyclictest0-21swapper/123:16:511
746499130,12cyclictest0-21swapper/100:09:211
746499130,11cyclictest0-21swapper/123:45:221
7463991310,2cyclictest0-21swapper/022:52:540
7463991310,2cyclictest0-21swapper/022:25:170
7463991310,2cyclictest0-21swapper/021:39:440
7463991310,2cyclictest0-21swapper/000:26:240
746399130,2cyclictest0-21swapper/023:39:140
746399130,2cyclictest0-21swapper/022:46:540
746399130,2cyclictest0-21swapper/022:46:540
746399130,2cyclictest0-21swapper/022:43:440
746399130,12cyclictest0-21swapper/022:14:350
746399130,12cyclictest0-21swapper/021:40:230
174992130,2sleep00-21swapper/000:35:330
746699129,2cyclictest0-21swapper/320:55:203
746699122,6cyclictest0-21swapper/321:10:003
746699122,5cyclictest11540-21copy20:40:013
746699120,2cyclictest0-21swapper/320:30:133
746699120,11cyclictest0-21swapper/323:10:153
746699120,11cyclictest0-21swapper/323:00:203
746699120,11cyclictest0-21swapper/321:00:193
746599129,2cyclictest0-21swapper/220:15:192
746599120,2cyclictest0-21swapper/222:44:082
746599120,2cyclictest0-21swapper/220:25:122
746599120,11cyclictest0-21swapper/223:42:252
746599120,11cyclictest0-21swapper/220:45:112
746599120,11cyclictest0-21swapper/219:30:142
746599120,11cyclictest0-21swapper/219:20:242
746499129,2cyclictest0-21swapper/121:26:021
746499129,2cyclictest0-21swapper/100:25:181
746499127,3cyclictest0-21swapper/120:30:181
746499122,7cyclictest0-21swapper/119:18:581
746499121,9cyclictest0-21swapper/121:05:121
746499120,2cyclictest0-21swapper/120:45:061
746499120,11cyclictest0-21swapper/122:26:031
746499120,11cyclictest0-21swapper/122:06:121
746499120,11cyclictest0-21swapper/121:56:231
746399120,2cyclictest25168-21ssh22:58:430
746399120,2cyclictest0-21swapper/023:21:340
746399120,2cyclictest0-21swapper/020:35:240
746399120,11cyclictest0-21swapper/019:10:120
277082120,2sleep10-21swapper/123:35:501
229152120,2sleep00-21swapper/023:30:320
184812120,2sleep10-21swapper/123:25:401
746699118,2cyclictest5450-21apt-get20:25:123
746699118,2cyclictest0-21swapper/320:45:223
746699118,2cyclictest0-21swapper/319:45:263
746699118,2cyclictest0-21swapper/319:45:263
746699117,2cyclictest0-21swapper/319:40:173
746699111,6cyclictest0-21swapper/320:00:003
746699111,6cyclictest0-21swapper/319:10:233
746699110,2cyclictest0-21swapper/320:40:183
746499118,2cyclictest0-21swapper/121:00:201
746499117,2cyclictest0-21swapper/120:10:001
746499111,8cyclictest17756-21apt-get19:35:101
746499111,8cyclictest0-21swapper/120:25:131
746499111,8cyclictest0-21swapper/120:00:151
746499111,3cyclictest0-21swapper/119:55:151
746499110,9cyclictest0-21swapper/120:50:171
746499110,9cyclictest0-21swapper/120:40:261
746499110,3cyclictest0-21swapper/119:50:151
746499110,3cyclictest0-21swapper/119:20:101
746399118,2cyclictest20479-21kworker/u8:222:24:050
746399118,2cyclictest0-21swapper/023:14:190
746399118,2cyclictest0-21swapper/000:23:140
746399118,2cyclictest0-21swapper/000:08:050
746399110,9cyclictest26241-21ssh23:00:070
746399110,10cyclictest0-21swapper/019:15:220
125892110,2sleep00-21swapper/019:20:170
87232100,2sleep00-21swapper/020:30:250
746699102,6cyclictest0-21swapper/319:15:223
746699101,5cyclictest0-21swapper/320:10:003
746699101,3cyclictest19558-21munin-run19:40:003
746599107,2cyclictest0-21swapper/220:00:192
746599107,2cyclictest0-21swapper/219:25:132
746499108,1cyclictest0-21swapper/119:45:121
746499108,1cyclictest0-21swapper/119:45:121
746499105,3cyclictest15747-21munin-node1
746499100,3cyclictest0-21swapper/120:35:131
746399107,2cyclictest0-21swapper/023:42:240
746399107,2cyclictest0-21swapper/022:16:020
746399107,2cyclictest0-21swapper/020:50:240
746399100,9cyclictest31638-21munin-run20:10:010
746399100,9cyclictest0-21swapper/021:05:340
74669995,2cyclictest24647-21grep19:50:163
74669994,3cyclictest6431-21nscd20:20:153
74669994,3cyclictest12143-21grep19:20:123
74659996,2cyclictest15394-21kworker/u8:021:02:052
74659991,6cyclictest17303-21kworker/2:219:50:002
74659991,6cyclictest17303-21kworker/2:219:50:002
74659990,8cyclictest0-21swapper/220:33:002
74639996,2cyclictest7855-21kworker/u8:019:36:040
74639996,2cyclictest0-21swapper/020:10:250
74639991,7cyclictest19250irq/25-ahci[00020:40:050
15552290,1sleep20-21swapper/220:50:012
74659985,2cyclictest7855-21kworker/u8:019:40:042
74659985,2cyclictest0-21swapper/219:50:542
74659984,3cyclictest30683-21needreboot20:05:172
74659984,2cyclictest18311-21grep20:55:132
74659980,7cyclictest0-21swapper/221:05:212
74639985,2cyclictest21829-21kworker/u8:219:49:060
74639985,2cyclictest21829-21kworker/u8:219:49:050
74639984,3cyclictest7458-21runrttasks19:40:120
74639981,6cyclictest32139-21kworker/0:021:00:140
74639981,6cyclictest20690-21kworker/0:119:50:140
74639981,3cyclictest4439-21sshd20:20:200
74639981,3cyclictest17164-21users19:30:260
74639980,7cyclictest0-21swapper/020:45:090
74639980,2cyclictest0-21swapper/019:55:540
74639970,2cyclictest0-21swapper/020:25:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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