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2026-04-09 - 20:33

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 Thu Apr 09, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
301622116105,6sleep30-21swapper/307:06:063
304072115104,6sleep10-21swapper/107:09:171
302442113102,6sleep20-21swapper/207:07:092
29760210383,15sleep00-21swapper/007:05:590
236202740,0sleep10-21swapper/111:33:291
290662730,0sleep10-21swapper/108:25:151
260792720,0sleep20-21swapper/209:55:132
49062690,0sleep30-21swapper/307:25:123
30493994427,15cyclictest0-21swapper/212:15:122
285112260,1sleep10-21swapper/111:38:381
3049199256,18cyclictest0-21swapper/011:45:090
3049499220,17cyclictest0-21swapper/311:24:053
30493992116,3cyclictest14164-21diskmemload11:45:102
3049399211,18cyclictest28402-21sh11:05:122
3049299210,4cyclictest0-21swapper/112:24:031
3049299210,4cyclictest0-21swapper/109:59:051
3049299210,4cyclictest0-21swapper/108:46:051
3049499200,15cyclictest0-21swapper/307:16:053
3049299201,2cyclictest207150irq/24-eth110:02:051
3049299200,4cyclictest0-21swapper/112:34:021
3049299200,4cyclictest0-21swapper/111:07:051
134062200,0sleep00-21swapper/011:56:000
30494991916,2cyclictest26552-21kworker/u8:210:40:043
3049499190,18cyclictest0-21swapper/312:16:063
3049499190,18cyclictest0-21swapper/312:05:053
3049499190,18cyclictest0-21swapper/310:35:123
3049499190,14cyclictest0-21swapper/311:12:023
3049499190,14cyclictest0-21swapper/310:25:053
3049299193,3cyclictest0-21swapper/108:04:011
3049299193,2cyclictest0-21swapper/108:31:051
3049299192,2cyclictest0-21swapper/111:26:051
3049299192,2cyclictest0-21swapper/107:51:051
30492991916,2cyclictest3767-21kworker/u8:109:40:011
3049299190,5cyclictest0-21swapper/111:12:061
3049299190,5cyclictest0-21swapper/109:11:051
3049299190,4cyclictest0-21swapper/109:51:051
3049299190,3cyclictest0-21swapper/110:34:041
3049299190,3cyclictest0-21swapper/110:05:041
3049299190,3cyclictest0-21swapper/107:37:041
3049299190,17cyclictest0-21swapper/109:30:051
30491991916,2cyclictest3767-21kworker/u8:109:32:040
3049199190,2cyclictest0-21swapper/012:22:020
295182190,1sleep114164-21diskmemload09:25:141
30494991815,2cyclictest9548-21kworker/u8:112:10:053
3049499180,2cyclictest0-21swapper/312:22:013
3049499180,2cyclictest0-21swapper/311:06:053
3049499180,2cyclictest0-21swapper/308:40:113
3049499180,17cyclictest0-21swapper/311:34:043
3049499180,13cyclictest0-21swapper/312:25:053
3049499180,13cyclictest0-21swapper/311:38:053
3049299183,7cyclictest0-21swapper/110:46:051
3049299183,2cyclictest0-21swapper/109:04:051
3049299182,5cyclictest0-21swapper/108:07:051
3049299181,2cyclictest0-21swapper/107:11:041
3049299181,14cyclictest18201-21munin-node1
3049299180,2cyclictest0-21swapper/111:58:051
3049299180,16cyclictest0-21swapper/111:40:051
3049199180,2cyclictest0-21swapper/011:06:060
30494991714,2cyclictest22667-21kworker/u8:209:20:063
3049499170,2cyclictest0-21swapper/311:48:053
3049499170,12cyclictest0-21swapper/308:52:053
30493991712,3cyclictest24921-21ssh11:35:112
3049299174,11cyclictest0-21swapper/112:29:591
3049299170,2cyclictest0-21swapper/111:23:041
30491991714,2cyclictest22667-21kworker/u8:209:37:050
30494991613,2cyclictest7770-21kworker/u8:010:12:053
30494991613,2cyclictest14874-21kworker/u8:009:45:053
30494991611,4cyclictest0-21swapper/310:04:563
3049499160,2cyclictest0-21swapper/308:59:053
3049299164,10cyclictest221ktimersoftd/112:11:011
3049299161,1cyclictest0-21swapper/107:29:051
30492991611,3cyclictest20070-21ssh10:55:391
3049299160,3cyclictest0-21swapper/110:40:311
3049299160,2cyclictest0-21swapper/110:29:051
3049199160,2cyclictest0-21swapper/011:10:040
3049199160,2cyclictest0-21swapper/008:59:050
30494991512,2cyclictest3767-21kworker/u8:109:56:053
30494991512,2cyclictest31790-21kworker/u8:110:47:053
30494991512,2cyclictest29070-21kworker/u8:009:29:043
30494991512,2cyclictest22667-21kworker/u8:209:19:053
30494991512,2cyclictest20765-21kworker/u8:210:22:063
3049399151,12cyclictest16029-21ssh10:51:142
3049299151,2cyclictest0-21swapper/111:02:051
3049299151,2cyclictest0-21swapper/110:37:051
30492991510,3cyclictest0-21swapper/111:50:121
3049299150,4cyclictest0-21swapper/107:58:061
3049299150,3cyclictest8358-21munin-node1
3049299150,2cyclictest0-21swapper/111:17:051
3049299150,13cyclictest0-21swapper/108:40:161
3049199158,4cyclictest28062-21apt11:05:000
3049199151,3cyclictest0-21swapper/010:02:140
30491991512,2cyclictest26552-21kworker/u8:210:38:050
30491991512,2cyclictest21984-21kworker/u8:208:14:050
30491991512,2cyclictest20765-21kworker/u8:210:16:060
30491991512,2cyclictest20765-21kworker/u8:209:54:050
3049199150,3cyclictest29593-21ssh10:32:020
3049199150,13cyclictest0-21swapper/009:57:020
30494991411,2cyclictest3767-21kworker/u8:109:39:053
30494991411,2cyclictest30700-21kworker/u8:007:14:053
30494991411,2cyclictest26552-21kworker/u8:210:33:053
30494991411,2cyclictest20765-21kworker/u8:210:18:043
30494991411,2cyclictest12109-21kworker/u8:210:55:053
30494991411,2cyclictest12109-21kworker/u8:210:52:063
30494991411,2cyclictest0-21swapper/311:15:533
30494991411,2cyclictest0-21swapper/309:42:303
30494991410,3cyclictest18843-21kworker/u8:011:25:053
3049499140,13cyclictest0-21swapper/312:30:023
3049499140,12cyclictest0-21swapper/311:58:313
3049499140,12cyclictest0-21swapper/307:56:283
3049399141,11cyclictest19287-21ssh09:15:102
3049399140,2cyclictest0-21swapper/211:20:112
3049399140,2cyclictest0-21swapper/210:27:352
3049399140,12cyclictest0-21swapper/211:28:082
3049399140,12cyclictest0-21swapper/211:00:162
3049299144,8cyclictest21-21rcuc/111:47:581
30492991411,2cyclictest0-21swapper/109:15:151
3049299140,2cyclictest0-21swapper/109:08:061
3049299140,2cyclictest0-21swapper/108:22:051
3049299140,2cyclictest0-21swapper/107:44:051
3049299140,12cyclictest0-21swapper/112:36:581
30491991411,2cyclictest5607-21kworker/u8:112:30:060
30491991411,2cyclictest31790-21kworker/u8:110:51:050
30491991411,2cyclictest24321-21kworker/u8:207:27:030
30491991411,2cyclictest20765-21kworker/u8:210:14:050
30491991411,2cyclictest0-21swapper/011:25:030
30491991411,2cyclictest0-21swapper/010:20:420
30491991411,2cyclictest0-21swapper/009:20:230
30491991410,2cyclictest0-21swapper/010:41:330
3049199140,3cyclictest30744-21awk11:40:190
3049199140,2cyclictest0-21swapper/012:17:050
3049199140,13cyclictest0-21swapper/009:26:330
3049199140,12cyclictest20151-21aten2.4_r3power11:30:110
3049199140,12cyclictest17136-21munin-node0
3049199140,12cyclictest0-21swapper/011:22:100
209862140,2sleep00-21swapper/010:56:280
30494991310,2cyclictest31790-21kworker/u8:111:00:053
30494991310,2cyclictest0-21swapper/312:36:043
30494991310,2cyclictest0-21swapper/311:51:223
30494991310,2cyclictest0-21swapper/311:42:433
3049499130,2cyclictest0-21swapper/309:50:143
3049499130,2cyclictest0-21swapper/309:30:493
3049499130,2cyclictest0-21swapper/309:10:533
3049499130,2cyclictest0-21swapper/308:35:003
3049499130,2cyclictest0-21swapper/308:08:063
3049499130,2cyclictest0-21swapper/307:40:203
3049499130,12cyclictest0-21swapper/312:01:233
3049499130,12cyclictest0-21swapper/307:45:043
30493991310,2cyclictest14164-21diskmemload11:15:152
30493991310,2cyclictest0-21swapper/212:09:552
3049399130,2cyclictest14164-21diskmemload09:44:142
3049399130,12cyclictest0-21swapper/210:41:522
3049399130,11cyclictest0-21swapper/212:36:002
30492991310,2cyclictest0-21swapper/108:10:131
30491991310,2cyclictest9098-21ssh10:45:050
30491991310,2cyclictest30656-21kworker/u8:108:35:050
30491991310,2cyclictest24321-21kworker/u8:207:19:040
30491991310,2cyclictest0-21swapper/012:11:420
30491991310,2cyclictest0-21swapper/011:36:020
3049199130,2cyclictest0-21swapper/012:35:100
3049199130,2cyclictest0-21swapper/011:50:130
3049199130,2cyclictest0-21swapper/008:45:180
3049199130,2cyclictest0-21swapper/008:08:060
3049199130,12cyclictest0-21swapper/010:05:530
3049199130,12cyclictest0-21swapper/009:14:230
3049199130,11cyclictest0-21swapper/010:25:480
3049199130,11cyclictest0-21swapper/008:35:000
173612130,1sleep20-21swapper/210:20:112
119352130,2sleep00-21swapper/012:28:270
3049499129,2cyclictest30656-21kworker/u8:108:46:053
3049499129,2cyclictest0-21swapper/308:25:513
3049499120,2cyclictest0-21swapper/308:20:143
3049499120,11cyclictest0-21swapper/308:35:163
3049499120,11cyclictest0-21swapper/308:15:153
3049499120,11cyclictest0-21swapper/308:00:193
3049499120,11cyclictest0-21swapper/307:31:043
3049499120,11cyclictest0-21swapper/307:20:113
3049499120,10cyclictest0-21swapper/310:05:123
3049399129,2cyclictest0-21swapper/212:12:432
3049399129,2cyclictest0-21swapper/212:00:122
3049399129,2cyclictest0-21swapper/210:59:032
3049399129,2cyclictest0-21swapper/210:31:432
3049399129,2cyclictest0-21swapper/210:05:042
3049399129,2cyclictest0-21swapper/209:52:542
3049399122,6cyclictest1914-21copy08:40:012
3049399122,6cyclictest0-21swapper/211:34:592
3049399122,6cyclictest0-21swapper/208:25:002
3049399121,9cyclictest10346-21sendmail07:39:592
3049399120,2cyclictest14164-21diskmemload11:59:342
3049399120,2cyclictest0-21swapper/210:03:422
3049399120,11cyclictest0-21swapper/212:30:182
3049399120,11cyclictest0-21swapper/212:20:242
3049399120,11cyclictest0-21swapper/211:50:122
3049399120,11cyclictest0-21swapper/210:16:342
3049299129,2cyclictest0-21swapper/112:15:061
3049299129,2cyclictest0-21swapper/110:52:561
3049299129,2cyclictest0-21swapper/109:48:021
3049299129,2cyclictest0-21swapper/108:50:151
3049299127,3cyclictest0-21swapper/107:20:121
3049299121,9cyclictest0-21swapper/108:35:161
3049299121,3cyclictest0-21swapper/107:15:151
3049299120,2cyclictest0-21swapper/109:35:051
3049299120,11cyclictest0-21swapper/112:00:591
3049299120,10cyclictest24441-21munin-node1
3049299120,10cyclictest0-21swapper/109:20:161
3049199129,2cyclictest792-21kworker/u8:111:16:050
3049199129,2cyclictest21984-21kworker/u8:208:21:050
3049199129,2cyclictest16166-21kworker/u8:107:57:050
3049199129,2cyclictest16166-21kworker/u8:107:53:040
3049199129,2cyclictest14561-21kworker/u8:009:16:050
3049199129,2cyclictest0-21swapper/009:05:120
3049199129,2cyclictest0-21swapper/007:46:020
3049199122,7cyclictest0-21swapper/009:03:590
3049199121,9cyclictest0-21swapper/008:44:590
3049199120,8cyclictest0-21swapper/008:01:050
3049199120,2cyclictest0-21swapper/012:05:330
3049199120,2cyclictest0-21swapper/009:45:480
3049199120,2cyclictest0-21swapper/009:42:110
3049199120,2cyclictest0-21swapper/007:34:050
3049199120,2cyclictest0-21swapper/007:20:380
129072120,1sleep20-21swapper/210:48:532
88262110,2sleep20-21swapper/210:10:212
3049499118,2cyclictest6499-21kworker/u8:007:50:023
3049499118,2cyclictest6499-21kworker/u8:007:36:053
3049399118,2cyclictest0-21swapper/212:29:122
3049399118,2cyclictest0-21swapper/211:40:052
3049399116,3cyclictest1660-21ntpq11:10:182
3049399112,5cyclictest0-21swapper/208:35:002
3049399112,5cyclictest0-21swapper/207:51:002
3049399111,6cyclictest0-21swapper/208:06:012
3049399111,3cyclictest0-21swapper/208:50:002
3049399110,10cyclictest0-21swapper/210:36:012
3049299118,2cyclictest0-21swapper/107:45:131
3049299118,2cyclictest0-21swapper/107:30:131
3049299117,2cyclictest0-21swapper/108:55:131
3049299110,9cyclictest0-21swapper/110:15:171
3049199119,1cyclictest0-21swapper/008:15:140
3049199118,2cyclictest0-21swapper/007:40:140
3049199118,2cyclictest0-21swapper/007:10:160
3049199112,6cyclictest0-21swapper/007:39:020
3049199111,6cyclictest0-21swapper/008:53:010
3049499107,2cyclictest30656-21kworker/u8:109:03:043
3049499107,2cyclictest0-21swapper/308:10:133
3049399107,2cyclictest14164-21diskmemload09:26:202
3049399107,2cyclictest14164-21diskmemload09:21:382
3049399105,3cyclictest3649-21snmpd08:12:532
3049399105,3cyclictest2776-21cut07:20:132
3049399105,3cyclictest17902-40update-apt-xapi07:56:502
3049399101,6cyclictest0-21swapper/207:17:402
3049399100,8cyclictest0-21swapper/209:30:132
3049399100,6cyclictest0-21swapper/208:51:002
3049399100,6cyclictest0-21swapper/207:46:012
3049299100,2cyclictest0-21swapper/112:05:101
3049199101,6cyclictest0-21swapper/008:27:560
169742100,1sleep20-21swapper/209:11:532
304939994,3cyclictest3728-21runrttasks09:45:292
304939994,3cyclictest3728-21runrttasks07:13:142
304939994,3cyclictest2198-21aten2.4_r3power08:40:122
304939994,3cyclictest18733-21df08:00:122
304939994,3cyclictest11493-21open_files07:40:202
304939994,3cyclictest10656-21tr09:00:122
304939991,6cyclictest0-21swapper/207:31:002
304939990,7cyclictest0-21swapper/209:36:012
304949985,2cyclictest0-21swapper/309:05:163
304939985,2cyclictest0-21swapper/208:25:132
304939983,3cyclictest8868-21fschecks_time08:55:152
304939983,3cyclictest5560-21fgrep07:25:592
304939983,3cyclictest3728-21runrttasks09:05:102
304939983,3cyclictest24901-21cut08:15:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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