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2026-08-31 - 19:12

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 Mon Aug 31, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7094211287,20sleep00-21swapper/007:06:510
7241210998,6sleep10-21swapper/107:08:461
7227210897,6sleep20-21swapper/207:08:342
7102210695,6sleep30-21swapper/307:06:593
143112900,4sleep0736899cyclictest08:45:140
134072830,0sleep30-21swapper/307:25:003
256082530,1sleep00-21swapper/010:18:240
7370992522,2cyclictest11231-21kworker/u8:010:01:042
7368992522,2cyclictest30711-21kworker/u8:109:57:040
7368992522,2cyclictest11231-21kworker/u8:009:38:050
7370992320,2cyclictest27040-21kworker/u8:211:51:042
7370992320,2cyclictest13492-21kworker/u8:310:10:052
7368992320,2cyclictest9692-21kworker/u8:112:37:040
7368992320,2cyclictest9692-21kworker/u8:111:44:010
7370992219,2cyclictest27040-21kworker/u8:211:07:042
7370992219,2cyclictest18251-21kworker/u8:011:57:042
737099220,19cyclictest11231-21kworker/u8:009:57:042
736999223,17cyclictest0-21swapper/109:45:121
7368992219,2cyclictest27040-21kworker/u8:211:08:040
7368992219,2cyclictest2638-21kworker/u8:210:38:040
7368992219,2cyclictest2638-21kworker/u8:210:38:040
299602220,1sleep20-21swapper/209:49:332
737199211,18cyclictest0-21swapper/309:45:133
7370992118,2cyclictest27889-21kworker/u8:208:15:042
737199200,18cyclictest0-21swapper/310:35:123
737199200,18cyclictest0-21swapper/310:35:123
737199200,18cyclictest0-21swapper/309:25:103
7370992017,2cyclictest9692-21kworker/u8:112:21:052
7370992017,2cyclictest7036-21kworker/u8:212:15:042
7370992017,2cyclictest662-21kworker/u8:011:28:042
7370992017,2cyclictest30925-21kworker/u8:109:31:042
7370992017,2cyclictest27061-21kworker/u8:110:32:042
7370992017,2cyclictest13492-21kworker/u8:310:09:042
737099200,18cyclictest0-21swapper/210:38:052
737099200,18cyclictest0-21swapper/210:38:042
736999200,18cyclictest0-21swapper/109:30:091
7368992017,2cyclictest7900-21kworker/u8:010:34:040
7368992017,2cyclictest7036-21kworker/u8:212:17:040
7368992017,2cyclictest31710-21kworker/u8:009:18:040
7368992017,2cyclictest27040-21kworker/u8:211:17:040
7370991916,2cyclictest31710-21kworker/u8:009:21:052
7370991916,2cyclictest30925-21kworker/u8:109:35:042
7370991916,2cyclictest27061-21kworker/u8:110:23:042
7370991916,2cyclictest24167-21kworker/u8:209:14:042
7370991916,2cyclictest14090-21kworker/u8:110:53:042
737099190,2cyclictest0-21swapper/212:37:042
737099190,2cyclictest0-21swapper/211:44:012
7368991916,2cyclictest9692-21kworker/u8:112:00:040
7368991916,2cyclictest9692-21kworker/u8:111:58:010
7368991916,2cyclictest11231-21kworker/u8:009:52:040
7370991815,2cyclictest7900-21kworker/u8:010:49:042
7370991815,2cyclictest27040-21kworker/u8:211:47:042
7370991815,2cyclictest23470-21kworker/u8:209:42:042
7370991815,2cyclictest22435-21kworker/u8:012:33:042
7368991815,2cyclictest7900-21kworker/u8:010:50:040
7368991815,2cyclictest31710-21kworker/u8:009:20:040
7368991815,2cyclictest27889-21kworker/u8:208:14:020
7368991815,2cyclictest27061-21kworker/u8:110:22:010
7368991815,2cyclictest27040-21kworker/u8:211:48:020
7368991815,2cyclictest27040-21kworker/u8:211:21:040
24422180,0sleep10-21swapper/110:27:431
7370991714,2cyclictest27040-21kworker/u8:211:14:042
7370991714,2cyclictest15691-21kworker/u8:207:34:052
736999172,13cyclictest2196-21ssh09:54:551
7368991714,2cyclictest27040-21kworker/u8:211:01:040
7368991714,2cyclictest24167-21kworker/u8:209:12:060
7368991714,2cyclictest11231-21kworker/u8:010:02:050
7368991714,2cyclictest11021-21kworker/u8:110:05:040
736899170,5cyclictest0-21swapper/011:51:040
7370991613,2cyclictest28519-21kworker/u8:111:32:042
7370991613,2cyclictest27040-21kworker/u8:211:16:012
7370991613,2cyclictest21664-21kworker/u8:109:05:042
7370991613,2cyclictest12068-21kworker/u8:209:02:042
737099161,13cyclictest0-21swapper/208:41:032
737099160,2cyclictest0-21swapper/209:18:042
737099160,14cyclictest0-21swapper/211:21:042
7369991612,2cyclictest21559-21apt-get07:45:051
736999161,13cyclictest4089-21sendmail-mta11:05:111
7369991611,3cyclictest0-21swapper/108:30:121
736999160,13cyclictest0-21swapper/109:23:251
7368991613,2cyclictest27040-21kworker/u8:210:55:040
7368991613,2cyclictest21123-21kworker/u8:010:14:050
7368991613,2cyclictest17905-21kworker/u8:107:36:040
736899160,14cyclictest0-21swapper/011:28:200
737199155,7cyclictest4562-21gdm-simple-gree10:27:583
737199151,12cyclictest27576-21ssh10:54:173
737199150,13cyclictest0-21swapper/312:30:183
737199150,13cyclictest0-21swapper/310:10:173
7370991512,2cyclictest9261-21kworker/u8:007:43:042
7370991512,2cyclictest9261-21kworker/u8:007:20:042
7370991512,2cyclictest7367-21cyclictest10:41:102
7370991510,3cyclictest2497-21hwlatdetect11:35:152
737099150,2cyclictest0-21swapper/212:00:042
737099150,2cyclictest0-21swapper/209:52:042
736999150,13cyclictest4822-21sshd11:04:151
736999150,13cyclictest28145-21cut08:00:141
736999150,13cyclictest0-21swapper/110:20:051
7368991512,2cyclictest31710-21kworker/u8:008:55:040
7368991512,2cyclictest12068-21kworker/u8:208:44:040
736899150,13cyclictest14531-21ssh11:14:310
81852140,3sleep28379-21fschecks_time08:30:152
737199149,3cyclictest8791-21ssh11:07:583
737199142,7cyclictest0-21swapper/311:30:003
737199142,7cyclictest0-21swapper/307:40:003
737199141,3cyclictest29317-21users08:01:053
737199141,3cyclictest0-21swapper/312:27:433
737199140,3cyclictest9877-21cpuspeed_turbos07:15:143
737199140,12cyclictest0-21swapper/310:23:073
7370991411,2cyclictest31710-21kworker/u8:008:58:042
7370991411,2cyclictest31710-21kworker/u8:008:46:062
7370991411,2cyclictest13051-21kworker/u8:107:13:042
737099140,3cyclictest10304-21fschecks_count08:35:142
737099140,2cyclictest0-21swapper/211:01:302
737099140,2cyclictest0-21swapper/208:14:012
737099140,13cyclictest0-21swapper/210:20:002
7369991411,2cyclictest0-21swapper/112:11:161
7369991411,2cyclictest0-21swapper/111:25:051
7369991411,2cyclictest0-21swapper/110:55:261
7369991411,2cyclictest0-21swapper/110:43:251
7369991411,2cyclictest0-21swapper/110:31:051
7369991411,2cyclictest0-21swapper/110:10:101
7369991411,2cyclictest0-21swapper/109:14:091
7369991411,2cyclictest0-21swapper/107:50:121
736999140,2cyclictest23757-21diskmemload11:54:151
736999140,2cyclictest0-21swapper/111:45:361
736999140,13cyclictest0-21swapper/112:35:461
736999140,13cyclictest0-21swapper/112:31:451
736999140,13cyclictest0-21swapper/111:35:151
736999140,13cyclictest0-21swapper/107:55:161
736999140,12cyclictest30940-21munin-node1
736999140,12cyclictest20386-21diskstats11:20:141
736999140,12cyclictest0-21swapper/112:06:381
736999140,12cyclictest0-21swapper/111:42:411
736999140,12cyclictest0-21swapper/109:40:131
736999140,12cyclictest0-21swapper/109:25:551
736999140,12cyclictest0-21swapper/107:35:011
7368991411,2cyclictest9261-21kworker/u8:007:58:040
7368991411,2cyclictest31710-21kworker/u8:009:06:040
7368991411,2cyclictest31710-21kworker/u8:008:54:040
7368991411,2cyclictest0-21swapper/009:47:100
7368991411,2cyclictest0-21swapper/009:25:140
736899140,3cyclictest6039-21ssh11:39:230
736899140,2cyclictest0-21swapper/012:21:040
736899140,2cyclictest0-21swapper/010:47:210
736899140,13cyclictest0-21swapper/012:31:410
736899140,13cyclictest0-21swapper/012:08:510
736899140,13cyclictest0-21swapper/009:33:500
736899140,12cyclictest3737-21apt-get08:20:110
736899140,12cyclictest0-21swapper/012:10:340
736899140,12cyclictest0-21swapper/009:00:130
737199138,3cyclictest22094-21ssh10:15:103
737199134,6cyclictest7367-21cyclictest08:11:013
737199132,9cyclictest17540-21apt-get07:35:003
737199132,7cyclictest0-21swapper/310:05:003
737199132,6cyclictest0-21swapper/311:45:003
737199131,10cyclictest0-21swapper/308:55:253
7371991310,2cyclictest0-21swapper/309:50:363
737199130,2cyclictest0-21swapper/308:35:123
737199130,12cyclictest0-21swapper/311:35:473
737199130,11cyclictest0-21swapper/312:22:093
7370991310,2cyclictest27889-21kworker/u8:208:02:042
7370991310,2cyclictest17905-21kworker/u8:107:38:012
7370991310,2cyclictest0-21swapper/208:06:022
737099130,12cyclictest0-21swapper/212:08:502
737099130,12cyclictest0-21swapper/210:55:152
737099130,12cyclictest0-21swapper/209:25:122
737099130,12cyclictest0-21swapper/207:50:142
7369991310,2cyclictest0-21swapper/112:25:171
7369991310,2cyclictest0-21swapper/112:21:091
7369991310,2cyclictest0-21swapper/112:03:011
7369991310,2cyclictest0-21swapper/111:33:441
7369991310,2cyclictest0-21swapper/111:16:241
7369991310,2cyclictest0-21swapper/110:45:461
7369991310,2cyclictest0-21swapper/110:16:011
7369991310,2cyclictest0-21swapper/109:16:391
7369991310,2cyclictest0-21swapper/108:50:141
7369991310,2cyclictest0-21swapper/108:35:151
736999130,2cyclictest6334-21munin-node1
736999130,2cyclictest0-21swapper/108:15:121
736999130,12cyclictest0-21swapper/111:56:191
736999130,12cyclictest0-21swapper/111:10:581
736999130,12cyclictest0-21swapper/110:52:051
736999130,12cyclictest0-21swapper/110:00:151
736999130,12cyclictest0-21swapper/109:01:041
736999130,12cyclictest0-21swapper/108:20:181
7368991310,2cyclictest25550-21kworker/u8:108:05:040
7368991310,2cyclictest0-21swapper/011:32:140
7368991310,2cyclictest0-21swapper/008:03:400
736899130,2cyclictest19739-21ssh12:26:320
736899130,2cyclictest0-21swapper/009:42:040
736899130,12cyclictest0-21swapper/010:44:330
736899130,12cyclictest0-21swapper/010:28:410
736899130,11cyclictest8775-21ntp_states08:30:180
37132130,2sleep30-21swapper/311:02:423
326662130,1sleep30-21swapper/310:59:483
253732130,2sleep30-21swapper/309:44:583
147122130,2sleep30-21swapper/311:48:033
737199129,2cyclictest0-21swapper/310:34:073
737199129,2cyclictest0-21swapper/309:39:263
737199129,2cyclictest0-21swapper/309:31:263
737199122,7cyclictest0-21swapper/310:45:013
737199122,6cyclictest0-21swapper/311:56:023
737199121,9cyclictest3649-21snmpd07:52:353
737199120,6cyclictest0-21swapper/310:40:133
737199120,2cyclictest0-21swapper/312:35:443
737199120,2cyclictest0-21swapper/312:16:403
737199120,2cyclictest0-21swapper/312:10:573
737199120,11cyclictest0-21swapper/311:10:073
737199120,11cyclictest0-21swapper/309:20:373
737199120,11cyclictest0-21swapper/309:15:493
737199120,11cyclictest0-21swapper/309:11:173
737199120,11cyclictest0-21swapper/308:21:053
737199120,11cyclictest0-21swapper/308:05:173
737099129,2cyclictest9261-21kworker/u8:007:18:042
737099129,2cyclictest0-21swapper/212:10:172
737099129,2cyclictest0-21swapper/207:45:092
737099120,11cyclictest0-21swapper/212:26:282
737099120,11cyclictest0-21swapper/210:25:032
737099120,11cyclictest0-21swapper/208:50:182
736999129,2cyclictest0-21swapper/109:55:191
736999129,2cyclictest0-21swapper/109:37:251
736999129,2cyclictest0-21swapper/108:10:161
736999120,2cyclictest0-21swapper/112:16:331
736999120,2cyclictest0-21swapper/110:35:091
736999120,2cyclictest0-21swapper/110:35:081
736999120,11cyclictest0-21swapper/110:05:241
736999120,10cyclictest0-21swapper/107:40:201
736999120,10cyclictest0-21swapper/107:10:281
736899129,2cyclictest9261-21kworker/u8:007:44:010
736899120,1cyclictest0-21swapper/007:11:020
281472120,2sleep30-21swapper/312:01:383
171672120,2sleep30-21swapper/311:16:083
107412120,2sleep00-21swapper/008:35:190
737199118,2cyclictest0-21swapper/307:40:173
737199112,7cyclictest0-21swapper/307:26:583
737199111,6cyclictest0-21swapper/308:41:013
737199111,3cyclictest0-21swapper/311:20:133
737199110,2cyclictest0-21swapper/309:57:283
737099118,2cyclictest0-21swapper/208:25:142
737099118,2cyclictest0-21swapper/207:55:142
736999118,2cyclictest0-21swapper/108:59:151
736999118,2cyclictest0-21swapper/107:31:071
736999118,2cyclictest0-21swapper/107:15:401
736999110,9cyclictest0-21swapper/109:05:141
736999110,9cyclictest0-21swapper/108:46:051
736999110,9cyclictest0-21swapper/107:21:021
736999110,3cyclictest0-21swapper/108:40:141
736899118,2cyclictest31710-21kworker/u8:008:25:040
736899118,2cyclictest0-21swapper/008:16:010
736899110,9cyclictest0-21swapper/007:55:000
736899110,10cyclictest0-21swapper/007:30:170
736899110,10cyclictest0-21swapper/007:15:160
21052110,2sleep30-21swapper/312:09:113
737199107,2cyclictest0-21swapper/308:15:113
737199105,3cyclictest14281-21df_abs08:45:143
737199104,4cyclictest3728-21runrttasks07:45:293
737199104,4cyclictest17649-21sshd08:54:153
737199102,5cyclictest0-21swapper/310:05:593
737199101,3cyclictest0-21swapper/311:51:033
737099107,2cyclictest9261-21kworker/u8:007:28:042
737099107,2cyclictest0-21swapper/208:24:432
73719994,3cyclictest8350-21tune2fs08:30:163
73719994,3cyclictest3728-21runrttasks08:26:593
73719994,3cyclictest29579-21aten2.4-expect11:30:133
73719991,6cyclictest0-21swapper/309:01:023
73719991,3cyclictest0-21swapper/309:05:153
73719991,3cyclictest0-21swapper/307:55:153
73719991,3cyclictest0-21swapper/307:11:023
73699996,2cyclictest0-21swapper/107:26:051
73689996,2cyclictest9261-21kworker/u8:007:24:060
73689996,2cyclictest0-21swapper/007:45:070
73689990,8cyclictest0-21swapper/007:25:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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