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2026-07-23 - 00:18

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 Wed Jul 22, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172202115104,6sleep20-21swapper/207:05:462
561421100,2sleep01798099cyclictest11:59:390
17836210796,6sleep30-21swapper/307:08:323
17651210695,6sleep10-21swapper/107:06:091
17182210378,20sleep00-21swapper/007:05:280
252602910,0sleep10-21swapper/110:40:031
157952780,1sleep011-21rcuc/012:10:010
237862740,1sleep10-21swapper/111:11:011
69312730,0sleep30-21swapper/312:00:183
246022730,0sleep10-21swapper/110:39:221
243362730,0sleep00-21swapper/009:31:590
147312720,0sleep20-21swapper/209:55:182
17986994729,16cyclictest0-21swapper/312:30:123
17981994728,17cyclictest0-21swapper/112:30:121
81652280,1sleep30-21swapper/312:35:133
81652280,1sleep30-21swapper/312:35:123
17986992320,2cyclictest8277-21kworker/u8:009:59:043
17986992320,2cyclictest28446-21kworker/u8:007:39:043
17986992320,2cyclictest27563-21kworker/u8:010:14:053
17986992320,2cyclictest24352-21kworker/u8:112:22:013
17986992320,2cyclictest2233-21kworker/u8:009:11:053
17986992320,2cyclictest19889-21kworker/u8:110:05:043
17986992320,2cyclictest13435-21kworker/u8:212:17:033
23042220,0sleep30-21swapper/311:22:253
17986992219,2cyclictest9536-21kworker/u8:109:54:023
17986992219,2cyclictest9536-21kworker/u8:109:54:023
17986992219,2cyclictest9536-21kworker/u8:109:46:063
17986992219,2cyclictest9536-21kworker/u8:109:46:053
17986992219,2cyclictest9536-21kworker/u8:109:20:053
17986992219,2cyclictest32625-21kworker/u8:012:28:053
17986992219,2cyclictest30924-21kworker/u8:011:57:043
17986992219,2cyclictest30441-21kworker/u8:109:08:053
17986992219,2cyclictest30441-21kworker/u8:109:04:043
17986992219,2cyclictest28446-21kworker/u8:008:38:043
17986992219,2cyclictest28446-21kworker/u8:008:14:043
17986992219,2cyclictest27563-21kworker/u8:010:33:043
17986992219,2cyclictest27003-21kworker/u8:111:30:043
17986992219,2cyclictest27003-21kworker/u8:111:17:053
17986992219,2cyclictest24975-21kworker/u8:009:42:043
17986992219,2cyclictest24975-21kworker/u8:009:37:053
17986992219,2cyclictest18977-21kworker/u8:012:14:043
17986992219,2cyclictest18396-21kworker/u8:011:44:053
17986992219,2cyclictest18282-21kworker/u8:107:14:043
17986992219,2cyclictest15769-21kworker/u8:111:04:053
17986992219,2cyclictest1193-21kworker/u8:207:28:053
1798599223,2cyclictest0-21swapper/210:06:052
17986992118,2cyclictest5179-21kworker/u8:208:00:043
17986992118,2cyclictest5179-21kworker/u8:207:56:053
17986992118,2cyclictest32311-21kworker/u8:210:57:043
17986992118,2cyclictest28446-21kworker/u8:008:07:053
17986992118,2cyclictest28446-21kworker/u8:007:52:053
17986992118,2cyclictest28446-21kworker/u8:007:46:013
17986992118,2cyclictest18396-21kworker/u8:011:45:043
17986992118,2cyclictest16512-21kworker/u8:209:15:043
17986992118,2cyclictest16512-21kworker/u8:208:55:053
17986992118,2cyclictest15769-21kworker/u8:111:07:043
17986992118,2cyclictest13435-21kworker/u8:212:09:053
17986992118,2cyclictest13384-21kworker/u8:210:00:023
17986992118,2cyclictest1193-21kworker/u8:207:22:043
17985992118,2cyclictest9536-21kworker/u8:109:47:052
17985992118,2cyclictest9536-21kworker/u8:109:47:042
1798199210,19cyclictest0-21swapper/112:10:111
17986992017,2cyclictest27563-21kworker/u8:010:38:053
17986992017,2cyclictest16993-21kworker/u8:209:28:043
17986992017,2cyclictest16512-21kworker/u8:208:54:013
17986992017,2cyclictest16512-21kworker/u8:208:45:053
17986992017,2cyclictest12371-21kworker/u8:108:24:053
17986992017,2cyclictest1193-21kworker/u8:207:33:053
17986992017,2cyclictest1193-21kworker/u8:207:17:053
1798699201,17cyclictest0-21swapper/311:50:143
17985992017,2cyclictest27563-21kworker/u8:010:29:052
1798199200,2cyclictest0-21swapper/109:20:141
1798099200,18cyclictest0-21swapper/009:55:120
17986991916,2cyclictest28446-21kworker/u8:008:30:053
17986991916,2cyclictest25320-21kworker/u8:107:44:053
17986991916,2cyclictest12371-21kworker/u8:108:25:043
17986991916,2cyclictest12371-21kworker/u8:108:16:053
1798699190,2cyclictest0-21swapper/310:50:053
1798699190,2cyclictest0-21swapper/310:47:043
1798699190,2cyclictest0-21swapper/309:34:053
1798699190,14cyclictest0-21swapper/310:40:043
17985991916,2cyclictest9536-21kworker/u8:109:19:042
166812190,0sleep00-21swapper/011:36:530
57472180,0sleep10-21swapper/109:13:251
17986991815,2cyclictest27563-21kworker/u8:010:25:053
1798699180,2cyclictest0-21swapper/311:28:053
1798699180,2cyclictest0-21swapper/311:13:053
1798699180,2cyclictest0-21swapper/310:21:043
1798699180,2cyclictest0-21swapper/310:18:063
17985991815,2cyclictest4452-21kworker/u8:211:36:042
17985991815,2cyclictest24352-21kworker/u8:112:25:042
17985991815,2cyclictest13435-21kworker/u8:212:17:072
1798199180,16cyclictest0-21swapper/111:50:141
17985991714,2cyclictest8277-21kworker/u8:009:54:062
17985991714,2cyclictest8277-21kworker/u8:009:54:062
17985991714,2cyclictest6346-21kworker/u8:112:12:042
17985991714,2cyclictest28446-21kworker/u8:008:10:052
17985991714,2cyclictest27563-21kworker/u8:010:20:042
17985991714,2cyclictest25453-21kworker/u8:111:48:052
17985991714,2cyclictest16993-21kworker/u8:209:27:052
17985991714,2cyclictest16512-21kworker/u8:208:33:052
17985991714,2cyclictest15769-21kworker/u8:111:06:052
1798099170,2cyclictest0-21swapper/010:30:120
17985991613,2cyclictest4452-21kworker/u8:211:52:062
17985991613,2cyclictest28446-21kworker/u8:008:39:052
17985991613,2cyclictest27563-21kworker/u8:010:19:052
17985991613,2cyclictest27003-21kworker/u8:111:20:042
17985991613,2cyclictest26970-21kworker/u8:110:54:022
17985991613,2cyclictest24975-21kworker/u8:009:38:022
17985991613,2cyclictest24352-21kworker/u8:112:24:052
17985991613,2cyclictest16512-21kworker/u8:208:44:042
17985991613,2cyclictest1193-21kworker/u8:207:27:042
17985991613,2cyclictest1193-21kworker/u8:207:21:052
17985991613,2cyclictest1193-21kworker/u8:207:18:052
17985991611,3cyclictest0-21swapper/207:55:182
1798599160,15cyclictest0-21swapper/211:11:042
1798199161,13cyclictest24751-21rm10:05:321
1798199161,13cyclictest0-21swapper/109:41:481
17980991613,2cyclictest13384-21kworker/u8:210:06:060
1798099160,14cyclictest0-21swapper/011:40:120
265122150,0sleep10-21swapper/107:30:121
17985991512,2cyclictest32625-21kworker/u8:012:35:052
17985991512,2cyclictest32625-21kworker/u8:012:35:042
17985991512,2cyclictest30924-21kworker/u8:012:01:042
17985991512,2cyclictest30441-21kworker/u8:109:10:052
17985991512,2cyclictest30441-21kworker/u8:109:09:042
17985991512,2cyclictest28635-21ssh10:43:052
17985991512,2cyclictest27563-21kworker/u8:010:31:042
17985991512,2cyclictest27003-21kworker/u8:111:19:052
17985991512,2cyclictest16993-21kworker/u8:209:32:042
17985991512,2cyclictest12371-21kworker/u8:108:20:052
1798599151,12cyclictest0-21swapper/211:41:102
1798599150,2cyclictest0-21swapper/210:10:052
1798599150,13cyclictest0-21swapper/211:25:052
1798199151,12cyclictest0-21swapper/112:21:211
17981991511,2cyclictest0-21swapper/108:15:121
1798199150,13cyclictest28993-21uptime11:16:051
1798199150,13cyclictest12263-21latency_hist10:59:591
1798199150,13cyclictest0-21swapper/110:46:011
1798199150,11cyclictest0-21swapper/111:37:061
17980991512,2cyclictest1948-21kworker/u8:209:45:050
17980991512,2cyclictest1948-21kworker/u8:209:45:040
1798099151,12cyclictest0-21swapper/007:50:500
1798099150,13cyclictest0-21swapper/011:49:320
1798099150,13cyclictest0-21swapper/009:10:150
17985991411,2cyclictest26359-21kworker/u8:009:00:052
17985991411,2cyclictest26359-21kworker/u8:008:57:052
17985991411,2cyclictest25320-21kworker/u8:107:49:052
17985991411,2cyclictest22385-21kworker/u8:108:49:052
17985991411,2cyclictest1193-21kworker/u8:207:35:042
1798199149,3cyclictest3728-21runrttasks08:26:031
17981991411,2cyclictest0-21swapper/110:29:421
1798199141,11cyclictest28345-21munin-node1
1798199141,11cyclictest1747-21diskmemload10:10:071
1798199140,12cyclictest0-21swapper/109:15:321
17980991410,2cyclictest0-21swapper/010:35:130
1798099140,2cyclictest0-21swapper/010:25:520
1798099140,13cyclictest0-21swapper/010:47:010
1798099140,12cyclictest22114-21cron08:40:000
1798099140,12cyclictest0-21swapper/012:17:300
1798099140,12cyclictest0-21swapper/011:26:110
1798099140,12cyclictest0-21swapper/011:10:070
1798099140,11cyclictest0-21swapper/010:43:340
17986991310,2cyclictest28446-21kworker/u8:008:40:063
1798699130,12cyclictest0-21swapper/311:35:443
1798599138,3cyclictest0-21swapper/210:02:352
17985991310,2cyclictest28446-21kworker/u8:008:02:042
17985991310,2cyclictest25320-21kworker/u8:107:41:052
1798599130,2cyclictest0-21swapper/212:05:192
1798599130,12cyclictest0-21swapper/212:34:192
1798199131,10cyclictest1747-21diskmemload11:55:181
17981991310,2cyclictest0-21swapper/111:23:241
17981991310,2cyclictest0-21swapper/111:07:021
17981991310,2cyclictest0-21swapper/110:30:151
17981991310,2cyclictest0-21swapper/110:15:321
17981991310,2cyclictest0-21swapper/108:35:131
1798199130,2cyclictest0-21swapper/112:26:011
1798199130,2cyclictest0-21swapper/112:06:461
1798199130,2cyclictest0-21swapper/112:00:511
1798199130,2cyclictest0-21swapper/111:25:191
1798199130,12cyclictest0-21swapper/111:46:311
1798199130,12cyclictest0-21swapper/111:40:111
1798199130,12cyclictest0-21swapper/111:30:421
1798199130,12cyclictest0-21swapper/110:54:321
1798199130,12cyclictest0-21swapper/109:53:321
1798199130,12cyclictest0-21swapper/109:53:311
1798199130,12cyclictest0-21swapper/109:29:221
1798199130,11cyclictest0-21swapper/112:35:101
1798199130,11cyclictest0-21swapper/112:35:091
1798099139,2cyclictest32222-21df11:20:120
17980991310,2cyclictest29105-21ssh09:36:510
17980991310,2cyclictest0-21swapper/012:36:180
17980991310,2cyclictest0-21swapper/012:36:170
17980991310,2cyclictest0-21swapper/012:30:160
17980991310,2cyclictest0-21swapper/012:25:160
17980991310,2cyclictest0-21swapper/012:05:070
17980991310,2cyclictest0-21swapper/011:51:160
17980991310,2cyclictest0-21swapper/011:15:020
17980991310,2cyclictest0-21swapper/011:08:420
17980991310,2cyclictest0-21swapper/010:21:310
17980991310,2cyclictest0-21swapper/010:15:130
17980991310,2cyclictest0-21swapper/009:52:060
17980991310,2cyclictest0-21swapper/009:52:050
17980991310,2cyclictest0-21swapper/009:22:490
17980991310,2cyclictest0-21swapper/008:30:120
17980991310,2cyclictest0-21swapper/008:05:170
17980991310,2cyclictest0-21swapper/007:11:020
1798099130,2cyclictest0-21swapper/010:00:520
1798099130,2cyclictest0-21swapper/009:26:060
1798099130,2cyclictest0-21swapper/009:17:120
1798099130,12cyclictest0-21swapper/012:04:310
1798099130,12cyclictest0-21swapper/011:00:010
1798099130,11cyclictest0-21swapper/010:53:230
146142130,2sleep10-21swapper/111:01:201
228992120,1sleep10-21swapper/110:04:331
1798599129,2cyclictest0-21swapper/210:58:292
1798599129,2cyclictest0-21swapper/210:37:092
1798599127,3cyclictest0-21swapper/210:45:142
1798599120,11cyclictest0-21swapper/208:15:192
1798199129,2cyclictest0-21swapper/109:57:481
1798199129,2cyclictest0-21swapper/109:30:121
1798199129,2cyclictest0-21swapper/109:05:171
1798199129,2cyclictest0-21swapper/108:20:201
1798199122,3cyclictest4840-21ls07:55:201
1798199121,9cyclictest7879-21updatedb.mlocat08:02:391
1798199121,9cyclictest22693-21tune2fs07:20:141
1798199121,9cyclictest0-21swapper/110:20:111
1798199121,9cyclictest0-21swapper/108:45:191
1798199121,3cyclictest24262-21munin-node1
1798199120,3cyclictest0-21swapper/107:15:151
1798199120,2cyclictest0-21swapper/109:46:141
1798199120,2cyclictest0-21swapper/109:46:141
1798199120,11cyclictest0-21swapper/109:37:221
1798199120,10cyclictest0-21swapper/107:50:141
1798099129,2cyclictest0-21swapper/012:21:280
1798099129,2cyclictest0-21swapper/008:45:150
1798099129,2cyclictest0-21swapper/007:30:290
1798099129,2cyclictest0-21swapper/007:15:000
1798099120,2cyclictest31380-21ssh09:40:000
1798099120,2cyclictest0-21swapper/011:32:380
1798099120,2cyclictest0-21swapper/007:35:190
1798099120,1cyclictest0-21swapper/008:10:060
1798099120,11cyclictest0-21swapper/010:55:420
1798099120,11cyclictest0-21swapper/010:10:030
1798099120,11cyclictest0-21swapper/008:20:130
1798099120,11cyclictest0-21swapper/008:15:140
1798599118,2cyclictest1747-21diskmemload11:04:142
1798599110,9cyclictest0-21swapper/211:30:282
1798599110,10cyclictest0-21swapper/209:21:392
1798199118,2cyclictest0-21swapper/109:00:131
1798199117,3cyclictest0-21swapper/108:10:041
1798199111,8cyclictest312-21diskstats07:45:151
1798199111,8cyclictest0-21swapper/107:10:141
1798199110,9cyclictest0-21swapper/108:40:161
1798199110,3cyclictest28377-21munin-node1
1798199110,1cyclictest0-21swapper/108:05:131
1798199110,10cyclictest0-21swapper/112:15:021
1798099118,2cyclictest32414-21apt-get09:05:120
1798099114,6cyclictest0-21swapper/007:28:220
1798099110,10cyclictest0-21swapper/008:44:540
1798599100,2cyclictest0-21swapper/211:56:342
1798599100,2cyclictest0-21swapper/209:42:012
1798199107,2cyclictest0-21swapper/108:30:131
1798199100,2cyclictest0-21swapper/107:40:151
179859994,3cyclictest3728-21runrttasks08:28:062
179859994,3cyclictest2216-21grep07:50:142
179859994,3cyclictest18290-21cut07:10:112
179859991,6cyclictest0-21swapper/207:31:482
179859990,2cyclictest0-21swapper/208:05:052
179809996,2cyclictest0-21swapper/007:21:030
179809990,8cyclictest22385-21kworker/u8:108:50:050
179809990,2cyclictest0-21swapper/007:57:240
30059280,1sleep00-21swapper/008:58:420
179859983,3cyclictest26575-21cpuspeed_turbos08:50:102
179819983,3cyclictest27016-21mii-tool08:50:131
179809985,2cyclictest0-21swapper/008:25:110
179809984,2cyclictest30657-21cpuspeed_turbos07:40:130
179809980,7cyclictest0-21swapper/009:01:050
179809980,7cyclictest0-21swapper/007:45:200
179809973,3cyclictest6140-21taskset08:00:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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