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2026-06-02 - 14:29

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 highest latencies:
System rack3slot6s.osadl.org (updated Tue Jun 02, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31256211797,14sleep30-21swapper/307:08:593
31119210784,18sleep00-21swapper/007:07:110
31275210378,6sleep20-21swapper/207:09:142
3115729786,6sleep10-21swapper/107:07:411
55862800,0sleep00-21swapper/012:20:140
258612710,0sleep10-21swapper/109:53:561
86892670,0sleep10-21swapper/111:50:121
243132340,0sleep10-21swapper/109:18:531
31368993228,2cyclictest0-21swapper/311:50:113
211902290,0sleep30-21swapper/310:21:523
3136799232,7cyclictest0-21swapper/211:39:592
185692230,0sleep20-21swapper/212:33:582
135742230,0sleep20-21swapper/209:40:232
3136799220,2cyclictest0-21swapper/208:40:122
3136799210,6cyclictest0-21swapper/209:33:592
3136599210,19cyclictest14783-21rm12:30:130
3136899200,18cyclictest0-21swapper/308:50:123
3136799202,6cyclictest0-21swapper/211:03:022
3136799202,5cyclictest0-21swapper/211:16:022
3136799202,5cyclictest0-21swapper/207:26:022
218632200,1sleep20-21swapper/210:22:552
3136799192,9cyclictest0-21swapper/211:05:042
3136799191,7cyclictest12251-21ssh10:12:592
3136799182,7cyclictest0-21swapper/210:54:592
3136799182,6cyclictest0-21swapper/207:21:022
31367991815,2cyclictest31423-21kworker/u8:108:39:042
31367991815,2cyclictest23272-21kworker/u8:109:53:042
31367991815,2cyclictest15625-21kworker/u8:209:14:052
3136799180,6cyclictest12-21rcu_preempt11:51:582
3136799180,6cyclictest0-21swapper/210:29:022
3136799180,6cyclictest0-21swapper/208:20:022
31368991714,2cyclictest23272-21kworker/u8:109:55:043
31368991714,2cyclictest21879-21kworker/u8:009:30:013
31368991714,2cyclictest15625-21kworker/u8:209:12:043
31368991714,2cyclictest10642-21kworker/u8:210:19:043
31368991712,3cyclictest0-21swapper/308:45:143
3136899171,14cyclictest30640-21diskstats09:25:133
3136899170,15cyclictest0-21swapper/312:20:133
3136899170,12cyclictest0-21swapper/309:21:033
31367991714,2cyclictest26983-21kworker/u8:110:34:012
31367991714,2cyclictest23272-21kworker/u8:109:56:042
31367991714,2cyclictest18104-21kworker/u8:311:41:042
31367991714,2cyclictest16204-21kworker/u8:011:28:032
3136799170,6cyclictest0-21swapper/211:23:592
301982170,0sleep10-21swapper/111:39:021
31368991613,2cyclictest7052-21kworker/u8:207:30:013
31368991613,2cyclictest21618-21kworker/u8:011:02:003
31368991613,2cyclictest20659-21kworker/u8:212:37:043
31368991613,2cyclictest1620-21kworker/u8:312:18:043
31368991612,2cyclictest18104-21kworker/u8:311:26:043
3136899161,13cyclictest0-21swapper/307:20:163
3136899160,2cyclictest0-21swapper/312:34:053
3136899160,2cyclictest0-21swapper/310:04:053
3136799163,8cyclictest15431-21ssh09:10:002
3136799161,7cyclictest0-21swapper/210:40:022
31367991613,2cyclictest9454-21kworker/u8:007:43:042
31367991613,2cyclictest31423-21kworker/u8:108:46:012
31367991613,2cyclictest24676-21kworker/u8:107:12:042
31367991613,2cyclictest10660-21kworker/u8:010:49:042
3136799160,2cyclictest0-21swapper/212:16:032
31366991611,3cyclictest25039-21sh12:06:131
3136699160,5cyclictest0-21swapper/110:33:591
3136699160,14cyclictest0-21swapper/109:40:041
3136699160,12cyclictest0-21swapper/111:25:041
3136599161,13cyclictest8841-21ssh10:42:570
3136899152,7cyclictest0-21swapper/308:15:013
31368991512,2cyclictest5731-21kworker/u8:111:20:043
31368991512,2cyclictest3520-21kworker/u8:011:57:043
31368991512,2cyclictest30225-21kworker/u8:211:40:043
31368991512,2cyclictest26983-21kworker/u8:110:52:013
31368991512,2cyclictest26662-21kworker/u8:112:09:043
31368991512,2cyclictest18104-21kworker/u8:311:30:043
3136899151,12cyclictest22810-21ssh10:57:153
31368991510,3cyclictest3539-21pzem_voltage11:10:493
3136799152,5cyclictest4562-21gdm-simple-gree11:48:592
3136799152,5cyclictest0-21swapper/210:59:592
31367991512,2cyclictest21879-21kworker/u8:009:23:042
31367991512,2cyclictest21754-21kworker/u8:312:07:042
31367991512,2cyclictest15209-21kworker/u8:112:39:042
31367991512,2cyclictest13527-21kworker/u8:207:46:042
31367991512,2cyclictest12611-21kworker/u8:009:04:012
3136799150,10cyclictest0-21swapper/211:32:042
3136699150,13cyclictest31709-21stty07:10:131
3136599150,13cyclictest0-21swapper/009:35:150
28332150,1sleep229-21rcuc/210:03:352
18012151,3sleep31953-21cat07:15:163
89822140,3sleep38993-21ssh09:35:483
3136899149,3cyclictest1579-21cpuspeed_turbos08:35:133
3136899146,5cyclictest0-21swapper/309:16:023
31368991411,2cyclictest9054-21kworker/u8:012:29:043
31368991411,2cyclictest32518-21kworker/u8:010:38:043
31368991411,2cyclictest27595-21kworker/u8:111:08:043
31368991411,2cyclictest21281-21kworker/u8:008:24:043
31368991411,2cyclictest21112-21kworker/u8:212:03:043
31368991411,2cyclictest17024-21kworker/u8:107:55:043
31368991411,2cyclictest10642-21kworker/u8:210:33:043
3136899140,11cyclictest0-21swapper/310:10:113
3136899140,10cyclictest0-21swapper/311:16:013
31367991411,2cyclictest7765-21kworker/u8:209:49:042
31367991411,2cyclictest7192-21kworker/u8:208:56:042
31367991411,2cyclictest3520-21kworker/u8:012:14:042
31367991411,2cyclictest29219-21kworker/u8:010:05:042
31367991411,2cyclictest21281-21kworker/u8:008:14:012
31367991411,2cyclictest21281-21kworker/u8:008:09:042
31367991411,2cyclictest13527-21kworker/u8:208:01:042
31367991411,2cyclictest13527-21kworker/u8:207:57:032
3136799141,11cyclictest7138-21apt-get07:30:052
3136799140,9cyclictest0-21swapper/209:39:042
3136799140,5cyclictest0-21swapper/209:17:022
3136799140,10cyclictest0-21swapper/209:27:042
31366991411,2cyclictest0-21swapper/109:49:241
31366991410,2cyclictest15573-21ls10:16:031
3136699140,3cyclictest26539-21taskset10:27:421
3136699140,3cyclictest0-21swapper/109:32:421
3136699140,2cyclictest0-21swapper/110:40:141
3136699140,2cyclictest0-21swapper/107:25:141
3136699140,12cyclictest26899-21sensors08:16:011
3136699140,12cyclictest0-21swapper/109:21:281
3136699140,12cyclictest0-21swapper/109:05:491
3136699140,12cyclictest0-21swapper/108:46:021
3136599142,2cyclictest0-21swapper/009:47:450
3136599141,2cyclictest15402-21diskmemload11:34:120
31365991411,2cyclictest0-21swapper/012:10:370
31365991411,2cyclictest0-21swapper/011:21:570
31365991411,2cyclictest0-21swapper/008:00:160
3136599141,11cyclictest21230-21ssh10:21:560
31365991410,2cyclictest0-21swapper/008:36:010
3136599140,2cyclictest3728-21runrttasks11:08:310
3136599140,2cyclictest0-21swapper/012:15:570
3136599140,2cyclictest0-21swapper/010:06:070
3136599140,2cyclictest0-21swapper/007:50:160
3136599140,13cyclictest0-21swapper/009:30:370
3136599140,12cyclictest0-21swapper/009:25:440
3136599140,12cyclictest0-21swapper/009:10:120
3136899138,3cyclictest0-21swapper/308:55:133
3136899131,7cyclictest0-21swapper/307:30:003
31368991310,2cyclictest7765-21kworker/u8:209:50:043
31368991310,2cyclictest30225-21kworker/u8:211:48:043
31368991310,2cyclictest26983-21kworker/u8:110:40:043
31368991310,2cyclictest21281-21kworker/u8:008:18:013
31368991310,2cyclictest21281-21kworker/u8:008:06:043
31368991310,2cyclictest0-21swapper/311:38:333
3136899130,8cyclictest0-21swapper/308:32:043
3136899130,2cyclictest0-21swapper/310:48:333
3136899130,2cyclictest0-21swapper/309:49:243
3136899130,2cyclictest0-21swapper/309:40:163
3136899130,12cyclictest0-21swapper/310:25:153
31367991310,2cyclictest3520-21kworker/u8:012:02:042
31367991310,2cyclictest31423-21kworker/u8:108:51:042
31367991310,2cyclictest13527-21kworker/u8:207:50:042
31367991310,2cyclictest0-21swapper/207:16:002
3136799130,6cyclictest0-21swapper/208:31:592
3136799130,2cyclictest0-21swapper/212:28:042
3136799130,2cyclictest0-21swapper/211:57:282
3136799130,2cyclictest0-21swapper/208:16:012
3136799130,12cyclictest15402-21diskmemload12:20:112
3136799130,11cyclictest0-21swapper/211:12:402
3136699132,8cyclictest4556-21metacity11:06:591
3136699132,6cyclictest0-21swapper/111:10:011
31366991310,2cyclictest0-21swapper/112:36:151
31366991310,2cyclictest0-21swapper/111:40:161
31366991310,2cyclictest0-21swapper/111:15:161
31366991310,2cyclictest0-21swapper/111:00:341
31366991310,2cyclictest0-21swapper/107:56:031
3136699130,2cyclictest0-21swapper/110:55:171
3136699130,12cyclictest0-21swapper/109:55:191
3136699130,11cyclictest0-21swapper/112:12:171
3136699130,11cyclictest0-21swapper/110:01:481
3136699130,11cyclictest0-21swapper/108:35:401
3136599133,7cyclictest0-21swapper/008:48:590
31365991310,2cyclictest0-21swapper/011:57:520
31365991310,2cyclictest0-21swapper/011:50:250
31365991310,2cyclictest0-21swapper/011:25:040
31365991310,2cyclictest0-21swapper/010:10:010
31365991310,2cyclictest0-21swapper/009:50:150
31365991310,2cyclictest0-21swapper/009:20:510
3136599130,2cyclictest15402-21diskmemload11:45:140
3136599130,2cyclictest0-21swapper/012:36:070
3136599130,2cyclictest0-21swapper/011:42:160
3136599130,2cyclictest0-21swapper/010:32:470
3136599130,2cyclictest0-21swapper/010:17:240
3136599130,12cyclictest31364-21cyclictest12:04:520
3136599130,12cyclictest0-21swapper/012:25:150
3136599130,12cyclictest0-21swapper/011:37:170
3136599130,12cyclictest0-21swapper/011:17:470
18762130,2sleep10-21swapper/109:29:241
48352120,1sleep10-21swapper/110:39:151
3136899129,2cyclictest31423-21kworker/u8:108:44:013
3136899129,2cyclictest24676-21kworker/u8:107:35:043
3136899129,2cyclictest13527-21kworker/u8:208:02:013
3136899129,2cyclictest0-21swapper/310:07:543
3136899120,7cyclictest0-21swapper/307:41:043
3136899120,11cyclictest0-21swapper/312:10:153
3136799129,2cyclictest0-21swapper/210:36:502
3136799129,2cyclictest0-21swapper/210:18:392
3136699129,2cyclictest0-21swapper/112:20:151
3136699129,2cyclictest0-21swapper/110:23:241
3136699129,2cyclictest0-21swapper/108:30:181
3136699129,2cyclictest0-21swapper/108:11:011
3136699129,2cyclictest0-21swapper/107:30:071
3136699127,3cyclictest21639-21aten2.4_r3power11:30:121
3136699122,7cyclictest0-21swapper/109:37:581
3136699122,7cyclictest0-21swapper/109:01:591
3136699122,7cyclictest0-21swapper/108:41:591
3136699122,7cyclictest0-21swapper/108:29:021
3136699122,7cyclictest0-21swapper/108:22:591
3136699122,7cyclictest0-21swapper/107:23:591
3136699120,2cyclictest0-21swapper/112:31:131
3136699120,2cyclictest0-21swapper/112:01:051
3136699120,2cyclictest0-21swapper/111:56:451
3136699120,2cyclictest0-21swapper/111:48:421
3136699120,2cyclictest0-21swapper/110:45:451
3136699120,2cyclictest0-21swapper/110:09:501
3136699120,2cyclictest0-21swapper/107:35:291
3136699120,11cyclictest15402-21diskmemload10:11:111
3136699120,11cyclictest0-21swapper/112:27:341
3136699120,11cyclictest0-21swapper/112:15:481
3136699120,10cyclictest0-21swapper/110:50:141
3136699120,10cyclictest0-21swapper/107:40:201
3136599129,2cyclictest0-21swapper/011:10:560
3136599129,2cyclictest0-21swapper/010:55:200
3136599129,2cyclictest0-21swapper/010:45:310
3136599129,2cyclictest0-21swapper/010:00:050
3136599129,2cyclictest0-21swapper/009:41:070
3136599129,2cyclictest0-21swapper/009:15:140
3136599129,2cyclictest0-21swapper/008:50:130
3136599129,2cyclictest0-21swapper/008:05:100
3136599127,3cyclictest28031-21expr08:20:100
3136599122,7cyclictest0-21swapper/007:34:590
3136599122,6cyclictest0-21swapper/007:58:490
3136599121,7cyclictest4556-21metacity07:36:590
3136599120,2cyclictest0-21swapper/012:05:350
3136599120,2cyclictest0-21swapper/007:25:130
3136599120,2cyclictest0-21swapper/007:20:290
3136599120,11cyclictest15402-21diskmemload09:55:100
3136599120,11cyclictest0-21swapper/011:00:140
3136599120,11cyclictest0-21swapper/010:51:080
3136599120,11cyclictest0-21swapper/010:36:050
3136599120,11cyclictest0-21swapper/009:00:510
3136599120,11cyclictest0-21swapper/007:40:090
247062120,2sleep015402-21diskmemload10:25:310
3136899118,2cyclictest9454-21kworker/u8:007:51:043
3136899118,2cyclictest9454-21kworker/u8:007:45:043
3136899118,2cyclictest7192-21kworker/u8:209:00:013
3136899112,6cyclictest0-21swapper/308:26:023
3136799111,6cyclictest0-21swapper/207:36:012
3136699118,2cyclictest0-21swapper/111:21:551
3136699118,2cyclictest0-21swapper/108:05:111
3136699112,8cyclictest8243-21iostat_ios08:50:161
3136699110,3cyclictest0-21swapper/107:15:161
3136699110,2cyclictest0-21swapper/109:14:231
3136699110,10cyclictest0-21swapper/108:55:191
3136599118,2cyclictest0-21swapper/008:40:140
3136599118,2cyclictest0-21swapper/008:10:100
3136599118,2cyclictest0-21swapper/007:15:120
3136599112,7cyclictest0-21swapper/009:05:020
3136599111,6cyclictest0-21swapper/007:45:580
3136899107,2cyclictest24676-21kworker/u8:107:10:013
3136799100,2cyclictest0-21swapper/208:27:042
3136699101,2cyclictest20247-21perl08:00:141
3136699100,2cyclictest15829-21cpuspeed_turbos07:50:131
3136699100,2cyclictest0-21swapper/107:46:001
3136599103,5cyclictest0-21swapper/008:28:560
3136599102,7cyclictest0-21swapper/008:56:590
3136599102,6cyclictest0-21swapper/008:16:020
3136599101,5cyclictest0-21swapper/008:30:010
313659994,3cyclictest31869-21cpuspeed_turbos07:10:140
313689983,3cyclictest13613-21dpkg09:05:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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