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2026-05-15 - 22:58

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 Fri May 15, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2626821460,3sleep02339299cyclictest11:50:120
231852116105,6sleep00-21swapper/007:07:430
23099211592,18sleep10-21swapper/107:06:361
23075211099,6sleep20-21swapper/207:06:182
23248210178,17sleep30-21swapper/307:08:323
290892870,1sleep00-21swapper/008:41:010
83092770,1sleep00-21swapper/010:20:130
162312290,0sleep20-21swapper/212:13:582
4082240,0sleep30-21swapper/309:36:073
23395992311,3cyclictest21377-21ssh11:10:112
283862220,1sleep00-21swapper/010:41:490
2339699221,19cyclictest0-21swapper/311:20:123
2339399221,16cyclictest0-21swapper/109:50:041
23395992110,3cyclictest26009-21munin-node2
2339599210,19cyclictest0-21swapper/208:55:102
2339399211,3cyclictest0-21swapper/109:24:051
23395992010,2cyclictest0-21swapper/210:15:452
2339599200,2cyclictest0-21swapper/209:25:142
23393992017,2cyclictest7233-21kworker/u8:010:23:051
23393992017,2cyclictest3681-21kworker/u8:009:08:051
23393992017,2cyclictest30996-21kworker/u8:209:36:051
23393992017,2cyclictest16939-21kworker/u8:011:43:041
23393992017,2cyclictest12327-21kworker/u8:111:36:051
23393992017,2cyclictest10117-21kworker/u8:112:34:051
23392992017,2cyclictest30026-21kworker/u8:110:18:040
23395991911,2cyclictest0-21swapper/210:24:262
2339599190,2cyclictest19586-21ssh09:22:052
23393991916,2cyclictest32305-21kworker/u8:012:35:041
23393991916,2cyclictest25338-21kworker/u8:009:30:051
23393991916,2cyclictest24549-21kworker/u8:110:42:041
23393991916,2cyclictest22865-21kworker/u8:111:49:041
23393991916,2cyclictest21412-21kworker/u8:111:13:051
23393991916,2cyclictest10117-21kworker/u8:112:07:041
2339399190,2cyclictest0-21swapper/110:09:041
2339399190,14cyclictest0-21swapper/112:17:051
42582180,0sleep00-21swapper/011:25:470
2339599188,3cyclictest17200-21ssh12:15:132
2339599182,7cyclictest7473-21diskmemload11:28:022
2339599182,7cyclictest0-21swapper/209:14:582
23393991815,2cyclictest7399-21kworker/u8:209:14:021
23393991815,2cyclictest31847-21kworker/u8:107:50:051
23393991815,2cyclictest26004-21kworker/u8:109:01:041
23393991815,2cyclictest1975-21kworker/u8:311:02:051
23393991815,2cyclictest19546-21kworker/u8:210:37:051
23393991815,2cyclictest19546-21kworker/u8:210:34:041
23393991815,2cyclictest16939-21kworker/u8:011:58:041
23393991815,2cyclictest12991-21kworker/u8:008:06:051
2339399181,2cyclictest207150irq/24-eth109:46:051
2339399180,2cyclictest0-21swapper/112:28:021
2339399180,2cyclictest0-21swapper/111:25:051
2339399180,14cyclictest0-21swapper/107:14:021
2339399180,14cyclictest0-21swapper/107:14:011
303422170,0sleep00-21swapper/009:34:310
2339699171,3cyclictest0-21swapper/310:35:163
2339599172,6cyclictest0-21swapper/207:20:012
23393991714,2cyclictest26004-21kworker/u8:108:55:051
23393991714,2cyclictest19602-21kworker/u8:109:40:041
23393991714,2cyclictest17857-21kworker/u8:008:29:041
23393991714,2cyclictest12991-21kworker/u8:007:34:051
23393991714,2cyclictest11797-21kworker/u8:108:14:041
2339399170,2cyclictest0-21swapper/110:26:041
2339699161,13cyclictest0-21swapper/312:34:343
23396991611,3cyclictest0-21swapper/309:50:113
2339699160,3cyclictest0-21swapper/310:40:303
23395991612,2cyclictest0-21swapper/210:12:462
2339599161,13cyclictest30517-21sh10:45:062
2339599161,13cyclictest30300-21df_inode08:45:132
2339399162,2cyclictest0-21swapper/112:01:051
23393991613,2cyclictest31847-21kworker/u8:107:46:041
23393991613,2cyclictest31847-21kworker/u8:107:43:051
23393991613,2cyclictest17857-21kworker/u8:008:36:051
23393991613,2cyclictest17857-21kworker/u8:008:23:051
23393991613,2cyclictest0-21swapper/110:16:051
2339399160,2cyclictest0-21swapper/112:22:041
2339399160,2cyclictest0-21swapper/111:34:041
2339399160,15cyclictest0-21swapper/110:10:051
23396991510,3cyclictest24807-21ssh12:22:503
2339699150,14cyclictest0-21swapper/310:49:513
23395991512,2cyclictest0-21swapper/211:50:262
23395991511,3cyclictest6689-21ssh12:03:362
23395991510,3cyclictest0-21swapper/211:35:162
2339599150,13cyclictest0-21swapper/212:25:142
23393991512,2cyclictest31403-21kworker/u8:208:49:051
2339399150,2cyclictest0-21swapper/111:08:041
2339299151,12cyclictest0-21swapper/007:35:130
2339299150,2cyclictest0-21swapper/009:25:160
2339299150,13cyclictest0-21swapper/012:05:050
2339299150,13cyclictest0-21swapper/009:59:260
205902150,2sleep07473-21diskmemload11:44:040
2339699149,3cyclictest21186-21apt-get11:45:063
2339699141,2cyclictest9784-21ssh10:56:453
2339699141,2cyclictest17759-21apt-get08:15:123
23396991411,2cyclictest7473-21diskmemload09:17:513
23396991411,2cyclictest0-21swapper/312:35:413
2339699141,11cyclictest3728-21runrttasks12:28:483
23396991410,2cyclictest26919-21ssh11:15:173
2339699140,2cyclictest0-21swapper/310:29:403
2339699140,13cyclictest0-21swapper/308:30:113
2339699140,12cyclictest10129-21ssh10:21:443
2339699140,12cyclictest0-21swapper/309:11:513
2339599142,9cyclictest608-21ssh11:21:582
2339599142,6cyclictest0-21swapper/210:00:012
2339599141,7cyclictest0-21swapper/208:54:592
23395991411,2cyclictest0-21swapper/210:03:352
2339599140,2cyclictest22669-21ssh10:35:362
2339599140,2cyclictest0-21swapper/212:36:352
2339599140,2cyclictest0-21swapper/212:23:252
2339599140,12cyclictest0-21swapper/207:25:002
2339399140,3cyclictest0-21swapper/107:29:041
2339399140,2cyclictest0-21swapper/112:10:051
2339399140,2cyclictest0-21swapper/111:21:041
2339399140,2cyclictest0-21swapper/110:48:021
2339399140,2cyclictest0-21swapper/109:27:041
2339399140,2cyclictest0-21swapper/108:04:041
23392991411,2cyclictest30571-21apt-get10:45:110
23392991411,2cyclictest0-21swapper/009:42:060
23392991411,2cyclictest0-21swapper/009:16:560
23392991410,2cyclictest0-21swapper/009:10:070
2339299140,12cyclictest12585-21apt-get09:50:100
2339299140,12cyclictest0-21swapper/011:00:540
2339299140,12cyclictest0-21swapper/010:30:500
2339299140,12cyclictest0-21swapper/010:13:100
23396991310,2cyclictest7473-21diskmemload09:21:353
23396991310,2cyclictest0-21swapper/311:31:023
23396991310,2cyclictest0-21swapper/311:13:063
23396991310,2cyclictest0-21swapper/310:53:003
23396991310,2cyclictest0-21swapper/310:32:413
23396991310,2cyclictest0-21swapper/310:15:103
23396991310,2cyclictest0-21swapper/310:00:163
23396991310,2cyclictest0-21swapper/309:57:153
23396991310,2cyclictest0-21swapper/309:47:423
23396991310,2cyclictest0-21swapper/309:40:523
23396991310,2cyclictest0-21swapper/309:30:223
23396991310,2cyclictest0-21swapper/309:00:153
2339699130,2cyclictest20007-21ssh11:43:013
2339699130,2cyclictest0-21swapper/311:39:033
2339699130,2cyclictest0-21swapper/311:08:333
2339699130,12cyclictest0-21swapper/311:55:103
2339699130,12cyclictest0-21swapper/311:00:433
2339699130,12cyclictest0-21swapper/310:12:333
2339599139,2cyclictest0-21swapper/207:30:012
2339599138,3cyclictest0-21swapper/211:40:462
2339599138,3cyclictest0-21swapper/211:06:052
2339599132,6cyclictest27911-21ssh09:31:012
2339599132,6cyclictest0-21swapper/207:50:002
23395991310,2cyclictest0-21swapper/212:30:462
23395991310,2cyclictest0-21swapper/209:52:142
2339599130,2cyclictest11581-21ssh09:48:522
2339599130,2cyclictest0-21swapper/211:01:462
2339599130,2cyclictest0-21swapper/210:07:452
2339599130,12cyclictest0-21swapper/211:57:052
2339599130,12cyclictest0-21swapper/209:38:342
2339599130,12cyclictest0-21swapper/207:35:152
2339599130,11cyclictest11143-21ssh12:08:172
2339599130,11cyclictest0-21swapper/211:34:332
2339599130,11cyclictest0-21swapper/210:27:532
2339399138,3cyclictest7473-21diskmemload09:57:571
2339399131,9cyclictest0-21swapper/110:01:041
23393991310,2cyclictest9396-21kworker/u8:207:55:051
23393991310,2cyclictest26004-21kworker/u8:108:52:041
2339399130,2cyclictest0-21swapper/108:44:041
2339399130,12cyclictest0-21swapper/109:17:041
2339299139,2cyclictest0-21swapper/009:05:120
2339299138,3cyclictest0-21swapper/008:16:030
23392991310,2cyclictest10869-21smartctl07:56:020
23392991310,2cyclictest0-21swapper/012:18:070
23392991310,2cyclictest0-21swapper/011:58:170
23392991310,2cyclictest0-21swapper/011:19:190
23392991310,2cyclictest0-21swapper/009:37:570
23392991310,2cyclictest0-21swapper/008:35:110
2339299130,2cyclictest0-21swapper/012:22:260
2339299130,2cyclictest0-21swapper/010:25:390
2339299130,12cyclictest0-21swapper/012:35:060
2339299130,12cyclictest0-21swapper/012:13:560
2339299130,12cyclictest0-21swapper/012:00:170
2339299130,12cyclictest0-21swapper/010:03:170
2339299130,12cyclictest0-21swapper/009:49:370
2339299130,11cyclictest0-21swapper/012:25:540
111482130,2sleep00-21swapper/011:33:450
243982120,2sleep00-21swapper/011:12:490
2339699129,2cyclictest0-21swapper/308:40:193
2339699129,2cyclictest0-21swapper/307:26:013
2339699120,2cyclictest0-21swapper/312:16:533
2339699120,2cyclictest0-21swapper/312:07:553
2339699120,2cyclictest0-21swapper/311:50:053
2339699120,2cyclictest0-21swapper/308:05:163
2339699120,11cyclictest0-21swapper/312:11:143
2339699120,11cyclictest0-21swapper/312:00:253
2339699120,11cyclictest0-21swapper/311:25:073
2339699120,11cyclictest0-21swapper/310:06:303
2339699120,11cyclictest0-21swapper/309:25:043
2339699120,11cyclictest0-21swapper/309:05:523
2339699120,11cyclictest0-21swapper/308:21:013
2339699120,11cyclictest0-21swapper/308:00:183
2339699120,11cyclictest0-21swapper/307:46:013
2339599129,2cyclictest0-21swapper/210:43:362
2339599129,2cyclictest0-21swapper/208:00:002
2339599129,2cyclictest0-21swapper/207:30:182
2339599122,6cyclictest0-21swapper/209:10:002
2339599121,6cyclictest0-21swapper/207:45:012
2339599120,2cyclictest0-21swapper/210:57:152
2339599120,2cyclictest0-21swapper/209:40:392
2339599120,2cyclictest0-21swapper/209:15:112
2339599120,11cyclictest0-21swapper/211:48:252
2339599120,11cyclictest0-21swapper/210:50:122
2339599120,11cyclictest0-21swapper/210:31:152
2339599120,11cyclictest0-21swapper/208:40:172
2339599120,11cyclictest0-21swapper/208:25:122
2339599120,11cyclictest0-21swapper/208:11:012
2339599120,11cyclictest0-21swapper/207:10:122
2339599120,11cyclictest0-21swapper/207:10:122
2339399121,9cyclictest0-21swapper/110:50:121
2339399121,3cyclictest0-21swapper/111:50:181
2339399120,2cyclictest0-21swapper/110:57:041
2339399120,2cyclictest0-21swapper/107:35:041
2339399120,10cyclictest0-21swapper/108:15:151
2339299129,2cyclictest2145-21ssh12:33:400
2339299129,2cyclictest0-21swapper/011:45:590
23392991210,1cyclictest0-21swapper/011:05:090
2339299120,2cyclictest0-21swapper/011:24:190
2339299120,2cyclictest0-21swapper/010:05:080
2339299120,2cyclictest0-21swapper/007:45:140
2339299120,11cyclictest0-21swapper/010:57:290
2339299120,11cyclictest0-21swapper/010:50:130
2339299120,11cyclictest0-21swapper/010:36:040
2339299120,11cyclictest0-21swapper/009:20:490
2339299120,11cyclictest0-21swapper/007:40:020
2339299120,11cyclictest0-21swapper/007:25:000
2339299120,10cyclictest0-21swapper/011:35:430
238312110,7sleep123597-21apt-get08:30:071
238302110,2sleep00-21swapper/008:30:060
2339699118,2cyclictest0-21swapper/308:55:123
2339699118,2cyclictest0-21swapper/308:45:153
2339699116,3cyclictest22063-21tr08:25:133
2339699112,5cyclictest0-21swapper/307:10:593
2339699112,5cyclictest0-21swapper/307:10:593
2339699111,7cyclictest0-21swapper/307:39:593
2339699110,2cyclictest0-21swapper/308:54:543
2339699110,1cyclictest0-21swapper/307:55:113
2339599112,6cyclictest0-21swapper/208:05:592
2339399114,5cyclictest26174-21aten2.4_r3power11:15:131
2339399111,8cyclictest0-21swapper/107:20:151
2339399110,9cyclictest0-21swapper/107:15:171
2339299119,1cyclictest0-21swapper/008:56:010
2339299118,2cyclictest26004-21kworker/u8:109:02:040
2339299118,2cyclictest0-21swapper/008:25:170
2339299118,2cyclictest0-21swapper/007:30:150
2339299110,10cyclictest0-21swapper/007:25:180
2339699107,2cyclictest0-21swapper/307:30:303
2339699101,7cyclictest0-21swapper/307:16:033
2339699101,6cyclictest0-21swapper/307:55:013
2339599107,2cyclictest0-21swapper/208:20:172
2339599102,7cyclictest0-21swapper/207:51:592
2339599102,5cyclictest0-21swapper/208:16:022
2339299107,2cyclictest0-21swapper/008:05:140
2339299101,6cyclictest0-21swapper/008:13:210
233969996,2cyclictest0-21swapper/308:38:413
233969994,3cyclictest27920-21cpuspeed_turbos07:20:133
233969994,3cyclictest17188-21grep08:11:003
233959994,3cyclictest5509-21latency_hist09:04:592
233959994,3cyclictest26287-21fschecks_count08:35:132
233959994,3cyclictest12127-21entropy08:00:132
233929994,3cyclictest30485-21grep08:45:160
233929994,3cyclictest11855-21aten2.4-expect08:00:110
233929991,6cyclictest0-21swapper/007:51:000
233929990,2cyclictest0-21swapper/008:24:590
1111290,2sleep00-21swapper/008:53:200
233969980,2cyclictest0-21swapper/307:40:083
233959983,3cyclictest23809-21chrt08:30:032
233929983,3cyclictest26333-21sort07:15:180
233929983,3cyclictest24471-21ntpdc07:10:170
233929983,3cyclictest24471-21ntpdc07:10:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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