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2026-04-16 - 06:04

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 the 376 highest latencies:
System rack3slot6s.osadl.org (updated Thu Apr 16, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15401211188,18sleep00-21swapper/019:07:200
15401211188,18sleep00-21swapper/019:07:190
155632110100,6sleep30-21swapper/319:09:283
155632110100,6sleep30-21swapper/319:09:273
15504210685,15sleep10-21swapper/119:08:421
15504210685,15sleep10-21swapper/119:08:411
15309210486,13sleep20-21swapper/219:06:102
15309210486,13sleep20-21swapper/219:06:102
296742850,1sleep0101ktimersoftd/023:55:090
40212750,1sleep1221ktimersoftd/121:14:441
181952730,0sleep00-21swapper/020:35:130
88592680,0sleep30-21swapper/323:00:013
133902650,0sleep30-21swapper/300:11:003
141672260,0sleep00-21swapper/000:11:360
222202230,0sleep20-21swapper/200:20:162
15635992315,6cyclictest30988-21chrt00:30:011
184772220,1sleep121-21rcuc/122:35:381
1563799210,19cyclictest0-21swapper/320:40:113
185722200,2sleep018577-21unixbench_singl00:16:020
1563799201,2cyclictest0-21swapper/321:55:123
1563799200,2cyclictest0-21swapper/322:10:103
15636992017,2cyclictest24029-21kworker/u8:022:23:052
1563699200,3cyclictest0-21swapper/200:28:052
1563599200,2cyclictest0-21swapper/121:55:121
1563599200,18cyclictest0-21swapper/120:40:111
1563499200,2cyclictest0-21swapper/021:05:120
1563499200,18cyclictest0-21swapper/021:30:120
301912190,0sleep20-21swapper/221:40:522
15636991916,2cyclictest14437-21kworker/u8:222:02:042
1563499190,2cyclictest0-21swapper/021:45:100
15637991813,3cyclictest0-21swapper/323:04:553
15636991815,2cyclictest1552-21kworker/u8:122:35:042
15635991815,2cyclictest9672-21kworker/u8:123:40:011
1563799171,14cyclictest23939-21aten2.4_r3power21:35:103
15636991714,2cyclictest5195-21kworker/u8:220:23:042
15636991714,2cyclictest27864-21kworker/u8:222:15:042
15636991714,2cyclictest24971-21kworker/u8:119:36:042
15636991714,2cyclictest23980-21kworker/u8:222:43:042
15636991714,2cyclictest19071-21kworker/u8:023:44:052
15636991714,2cyclictest1552-21kworker/u8:122:26:042
15636991714,2cyclictest14437-21kworker/u8:222:05:052
1563699170,15cyclictest0-21swapper/219:45:012
1563699170,11cyclictest0-21swapper/219:52:022
1563599170,3cyclictest0-21swapper/120:20:161
1563599170,2cyclictest0-21swapper/100:28:051
210432160,0sleep20-21swapper/220:41:012
15637991611,3cyclictest32074-21apt-get21:10:103
15636991613,2cyclictest9672-21kworker/u8:123:36:052
15636991613,2cyclictest30300-21kworker/u8:023:22:062
15636991613,2cyclictest27864-21kworker/u8:222:12:052
15636991613,2cyclictest24029-21kworker/u8:021:59:052
15636991613,2cyclictest14038-21kworker/u8:223:19:042
15635991613,2cyclictest19071-21kworker/u8:023:58:051
15635991611,3cyclictest31403-21pzem_energy22:15:291
1563499160,11cyclictest0-21swapper/000:27:050
15637991512,2cyclictest0-21swapper/322:48:283
1563799151,12cyclictest21953-21aten2.4-expect20:45:103
15637991510,3cyclictest23807-21grep23:15:123
1563799150,13cyclictest0-21swapper/323:30:113
15636991512,2cyclictest30300-21kworker/u8:023:30:012
15636991512,2cyclictest30075-21kworker/u8:219:49:042
15636991512,2cyclictest24029-21kworker/u8:021:24:022
15636991512,2cyclictest24029-21kworker/u8:021:09:052
15636991512,2cyclictest22057-21kworker/u8:219:30:042
15636991512,2cyclictest19071-21kworker/u8:000:08:052
15636991512,2cyclictest1722-21kworker/u8:121:17:052
15636991512,2cyclictest15915-21kworker/u8:200:17:042
15636991512,2cyclictest1552-21kworker/u8:122:47:052
15636991512,2cyclictest1279-21kworker/u8:019:56:042
1563699151,12cyclictest0-21swapper/221:30:122
1563699150,13cyclictest0-21swapper/221:39:042
15635991512,2cyclictest30075-21kworker/u8:219:46:041
15635991512,2cyclictest28845-21kworker/u8:121:46:021
1563599151,12cyclictest0-21swapper/100:11:041
15635991510,3cyclictest31049-21ssh23:22:151
15635991510,3cyclictest23026-21ssh23:47:361
15635991510,3cyclictest0-21swapper/122:21:031
1563599150,2cyclictest0-21swapper/123:29:051
1563499150,13cyclictest0-21swapper/022:50:150
1563799143,6cyclictest0-21swapper/323:40:003
1563799141,7cyclictest0-21swapper/320:30:003
1563799141,3cyclictest4003-21ssh22:20:443
1563799141,2cyclictest17195-21apt-get22:35:103
15637991411,2cyclictest0-21swapper/322:44:083
15637991411,2cyclictest0-21swapper/321:17:283
15637991411,2cyclictest0-21swapper/300:02:383
15637991410,2cyclictest0-21swapper/300:30:003
1563799140,3cyclictest17105-21ssh23:08:043
1563799140,2cyclictest0-21swapper/322:31:083
1563799140,2cyclictest0-21swapper/300:20:183
1563799140,12cyclictest9381-21ssh21:20:043
1563799140,12cyclictest0-21swapper/321:43:293
1563799140,12cyclictest0-21swapper/321:25:093
15636991411,2cyclictest5195-21kworker/u8:220:15:052
15636991411,2cyclictest19071-21kworker/u8:023:58:012
15636991411,2cyclictest19071-21kworker/u8:023:45:052
15636991411,2cyclictest17892-21kworker/u8:221:01:042
15636991411,2cyclictest1552-21kworker/u8:122:34:052
15636991411,2cyclictest11345-21kworker/u8:219:12:012
15636991411,2cyclictest11267-21kworker/u8:020:30:022
1563699141,11cyclictest0-21swapper/220:05:112
1563699140,2cyclictest0-21swapper/221:29:042
1563599149,3cyclictest0-21swapper/100:37:161
15635991411,2cyclictest22057-21kworker/u8:219:27:051
15635991411,2cyclictest0-21swapper/121:38:251
15635991411,2cyclictest0-21swapper/121:26:451
1563599140,3cyclictest0-21swapper/122:04:571
1563599140,12cyclictest25910-21apt-get20:55:121
1563599140,12cyclictest207150irq/24-eth123:08:331
1563599140,12cyclictest207150irq/24-eth121:23:011
1563599140,12cyclictest0-21swapper/122:10:301
1563599140,12cyclictest0-21swapper/122:08:081
1563599140,12cyclictest0-21swapper/121:42:431
1563599140,12cyclictest0-21swapper/100:06:481
15634991411,2cyclictest0-21swapper/021:20:160
88612130,1sleep00-21swapper/021:52:200
46302130,2sleep10-21swapper/100:01:451
28342130,2sleep00-21swapper/000:34:340
1563799138,3cyclictest17354-21sensors_temp22:01:003
1563799132,6cyclictest0-21swapper/323:30:003
1563799132,6cyclictest0-21swapper/319:30:013
15637991310,2cyclictest23005-21ssh22:06:483
15637991310,2cyclictest0-21swapper/323:54:043
15637991310,2cyclictest0-21swapper/321:49:073
15637991310,2cyclictest0-21swapper/321:06:043
15637991310,2cyclictest0-21swapper/300:16:013
15637991310,2cyclictest0-21swapper/300:08:113
1563799130,2cyclictest0-21swapper/323:20:593
1563799130,2cyclictest0-21swapper/323:10:213
1563799130,2cyclictest0-21swapper/300:36:323
1563799130,2cyclictest0-21swapper/300:32:503
1563799130,12cyclictest0-21swapper/323:58:483
1563799130,12cyclictest0-21swapper/323:45:393
1563799130,12cyclictest0-21swapper/323:40:373
1563799130,12cyclictest0-21swapper/322:15:473
1563799130,12cyclictest0-21swapper/321:33:183
1563799130,12cyclictest0-21swapper/319:50:283
1563699138,3cyclictest5904-21cat22:56:032
15636991310,2cyclictest6563-21kworker/u8:100:37:052
15636991310,2cyclictest29070-21kworker/u8:119:17:052
15636991310,2cyclictest17892-21kworker/u8:220:55:052
15636991310,2cyclictest15494-21kworker/u8:120:48:042
15636991310,2cyclictest0-21swapper/221:51:062
1563699130,2cyclictest0-21swapper/221:47:052
1563599139,2cyclictest0-21swapper/121:50:051
15635991310,2cyclictest23980-21kworker/u8:222:52:011
15635991310,2cyclictest0-21swapper/122:30:121
15635991310,2cyclictest0-21swapper/122:25:191
15635991310,2cyclictest0-21swapper/119:50:381
15635991310,2cyclictest0-21swapper/100:15:181
1563599130,8cyclictest0-21swapper/120:29:041
1563599130,2cyclictest3400-21copy20:00:041
1563599130,2cyclictest0-21swapper/123:00:511
1563599130,2cyclictest0-21swapper/122:56:161
1563599130,2cyclictest0-21swapper/122:45:121
1563599130,12cyclictest0-21swapper/123:37:021
1563599130,12cyclictest0-21swapper/123:33:251
1563599130,12cyclictest0-21swapper/123:12:261
1563599130,11cyclictest0-21swapper/121:30:061
15634991310,2cyclictest0-21swapper/022:25:050
1563499130,12cyclictest0-21swapper/021:39:560
282042120,1sleep028208-21cpuspeed_turbos19:40:130
262542120,2sleep031750-21diskmemload23:17:180
23292120,2sleep20-21swapper/222:52:512
231052120,2sleep00-21swapper/023:14:540
178072120,2sleep20-21swapper/223:09:102
1563799129,2cyclictest0-21swapper/319:46:023
1563799129,2cyclictest0-21swapper/319:31:033
1563799122,7cyclictest0-21swapper/320:39:583
1563799120,2cyclictest0-21swapper/322:52:123
1563799120,2cyclictest0-21swapper/321:50:523
1563799120,11cyclictest0-21swapper/322:26:123
1563799120,11cyclictest0-21swapper/320:20:593
1563799120,11cyclictest0-21swapper/320:11:003
1563799120,11cyclictest0-21swapper/320:05:143
1563799120,11cyclictest0-21swapper/320:00:023
1563799120,11cyclictest0-21swapper/319:36:003
1563699129,2cyclictest15494-21kworker/u8:120:39:042
1563699129,2cyclictest0-21swapper/223:10:132
1563699129,2cyclictest0-21swapper/220:25:182
1563699129,2cyclictest0-21swapper/200:31:062
1563699120,11cyclictest0-21swapper/223:29:162
1563699120,11cyclictest0-21swapper/220:52:052
1563699120,11cyclictest0-21swapper/200:03:372
1563699120,10cyclictest0-21swapper/223:51:522
1563699120,10cyclictest0-21swapper/223:00:042
1563599129,2cyclictest24971-21kworker/u8:119:37:041
1563599129,2cyclictest24971-21kworker/u8:119:32:021
1563599129,2cyclictest17892-21kworker/u8:221:02:041
1563599129,2cyclictest17892-21kworker/u8:220:54:041
1563599129,2cyclictest0-21swapper/123:51:021
1563599129,2cyclictest0-21swapper/122:40:111
1563599127,3cyclictest25139-21smartctl23:16:001
1563599121,9cyclictest0-21swapper/120:30:141
1563599121,9cyclictest0-21swapper/100:20:141
1563599120,2cyclictest0-21swapper/121:15:551
1563599120,2cyclictest0-21swapper/121:05:161
1563599120,2cyclictest0-21swapper/119:16:011
1563599120,2cyclictest0-21swapper/119:10:101
1563499129,2cyclictest27943-21ssh23:52:460
1563499129,2cyclictest13830-21apt-get20:25:110
1563499123,6cyclictest17321-21ssh22:01:000
1563499122,7cyclictest0-21swapper/000:36:580
1563499120,11cyclictest0-21swapper/022:05:550
1563499120,10cyclictest10976-21ssh00:09:080
73452110,1sleep00-21swapper/022:57:540
245052110,2sleep00-21swapper/000:22:430
1563799112,7cyclictest0-21swapper/319:45:013
1563799112,6cyclictest0-21swapper/320:52:593
1563699118,2cyclictest0-21swapper/221:10:172
1563699110,3cyclictest0-21swapper/200:10:052
1563699110,2cyclictest0-21swapper/220:14:012
1563599118,2cyclictest24971-21kworker/u8:119:44:051
1563599118,2cyclictest15494-21kworker/u8:120:45:041
1563599111,8cyclictest3728-21runrttasks20:10:211
1563599111,8cyclictest0-21swapper/119:55:121
1563599110,9cyclictest0-21swapper/120:35:171
1563499118,2cyclictest17874-21ssh23:09:150
1563499114,6cyclictest0-21swapper/022:48:060
1563499110,10cyclictest17892-21kworker/u8:220:52:040
1563499110,10cyclictest11884-21ssh23:02:260
1563499110,10cyclictest0-21swapper/021:13:360
124322110,1sleep00-21swapper/021:56:020
5422100,2sleep00-21swapper/022:17:210
40632100,7sleep00-21swapper/023:28:130
1563799107,2cyclictest0-21swapper/319:15:113
1563799105,3cyclictest1658-21head19:55:113
1563799102,5cyclictest0-21swapper/321:02:583
1563799101,5cyclictest0-21swapper/320:31:023
1563699105,3cyclictest20001-21cut19:20:112
1563699100,2cyclictest0-21swapper/220:02:042
1563599100,8cyclictest0-21swapper/120:15:131
1563599100,8cyclictest0-21swapper/119:20:591
1563499107,2cyclictest0-21swapper/021:40:050
1563499104,2cyclictest25312-21ssh22:10:050
1563499102,6cyclictest0-21swapper/020:11:000
1563499101,2cyclictest6093-21sh22:23:120
1563499101,2cyclictest31750-21diskmemload23:20:530
1563499100,9cyclictest1722-21kworker/u8:121:19:040
1563499100,8cyclictest17892-21kworker/u8:221:03:040
1563499100,8cyclictest0-21swapper/020:00:080
1563499100,7cyclictest0-21swapper/020:32:020
1563499100,7cyclictest0-21swapper/019:26:580
1563499100,2cyclictest0-21swapper/022:31:350
24866290,6sleep00-21swapper/022:42:260
15711290,6sleep031750-21diskmemload21:25:510
156379994,3cyclictest26357-21fschecks_count20:55:143
156379994,3cyclictest20124-21tr19:20:113
156379994,3cyclictest16842-21pzem_current19:10:183
156379994,3cyclictest11164-21tail20:16:033
156369994,3cyclictest3728-21runrttasks19:25:062
156359990,8cyclictest0-21swapper/120:05:121
156349994,3cyclictest3728-21runrttasks19:23:420
156349993,2cyclictest0-21swapper/020:06:050
156349992,5cyclictest0-21swapper/019:49:580
156349992,5cyclictest0-21swapper/000:00:590
156349992,4cyclictest0-21swapper/020:45:020
156349990,8cyclictest0-21swapper/022:36:120
156349990,8cyclictest0-21swapper/020:20:000
156349990,7cyclictest0-21swapper/020:58:020
156349990,7cyclictest0-21swapper/020:40:160
156349990,7cyclictest0-21swapper/020:20:120
156349990,2cyclictest31750-21diskmemload23:30:020
156349990,2cyclictest0-21swapper/019:10:160
156349985,2cyclictest15763-21fschecks_count23:40:120
156349985,2cyclictest0-21swapper/023:35:090
156349985,2cyclictest0-21swapper/019:35:170
156349984,2cyclictest3728-21runrttasks19:57:220
156349980,7cyclictest0-21swapper/023:45:110
156349980,7cyclictest0-21swapper/019:20:010
156349980,4cyclictest0-21swapper/019:30:340
156349970,6cyclictest0-21swapper/019:50:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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