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2026-07-15 - 15:50

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #4

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack7slot4s.osadl.org (updated Wed Jul 15, 2026 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21042995810,9cyclictest131rcu_preempt09:45:121
2105999576,46cyclictest35966irq/58-eth011:25:123
21059995747,7cyclictest35966irq/58-eth012:35:153
2104299522,35cyclictest15853-21ssh10:45:141
2105999474,25cyclictest35966irq/58-eth010:10:123
21059994617,18cyclictest35966irq/58-eth009:15:123
2105999452,29cyclictest35966irq/58-eth007:15:123
2105199451,25cyclictest0-21swapper/209:45:152
2105999423,21cyclictest35966irq/58-eth011:00:123
21059994225,12cyclictest35966irq/58-eth010:00:133
21059994220,11cyclictest35966irq/58-eth009:20:153
2105999412,25cyclictest35966irq/58-eth010:05:143
21051994114,9cyclictest27-21ksoftirqd/211:50:142
21051994114,9cyclictest27-21ksoftirqd/211:50:132
2103499414,30cyclictest6883-21ssh10:40:140
2105999402,21cyclictest35966irq/58-eth011:50:113
2105999402,21cyclictest35966irq/58-eth011:50:113
21059994021,11cyclictest35966irq/58-eth009:25:133
2104299404,22cyclictest21-21ksoftirqd/107:15:131
2104299401,30cyclictest19173-21ssh12:35:141
2105999391,26cyclictest35966irq/58-eth010:25:133
21051993925,9cyclictest27-21ksoftirqd/210:11:412
2105199392,31cyclictest18747-21sh11:04:412
2105999383,20cyclictest35966irq/58-eth011:35:143
2105199382,24cyclictest1445-21ssh10:55:152
2104299382,27cyclictest25060-21ssh09:20:151
2103499381,33cyclictest6467-21ssh12:10:110
2103499381,19cyclictest0-21swapper/010:15:130
2105199372,25cyclictest17506-21ssh11:40:132
2105199362,18cyclictest14757-21ssh12:14:412
2104299363,27cyclictest22917-21ssh11:25:121
2104299357,11cyclictest21-21ksoftirqd/109:50:141
2103499353,25cyclictest7081-21ssh09:10:120
21034993523,6cyclictest27298-21apt-get07:50:130
21034993523,6cyclictest27298-21apt-get07:50:130
2104299346,5cyclictest131rcu_preempt11:05:171
2104299341,28cyclictest20975-21ssh12:00:121
2103499342,8cyclictest1566-21ssh10:55:170
21059993318,9cyclictest0-21swapper/312:15:133
2105199335,15cyclictest27346irq/40-dwc2_hso07:35:142
2105199334,7cyclictest131rcu_preempt08:15:142
2105199333,22cyclictest27-21ksoftirqd/210:00:132
2104299336,23cyclictest26748-21ssh10:15:141
21059993213,13cyclictest35966irq/58-eth012:00:143
2105999321,16cyclictest35966irq/58-eth010:30:113
2104299326,18cyclictest21-21ksoftirqd/112:30:111
21034993223,3cyclictest17671-21apt-get07:40:130
21034993217,10cyclictest2104-21apt-get09:05:160
2105199312,4cyclictest131rcu_preempt09:10:122
2105199312,24cyclictest24448-21ssh09:35:402
2105199312,24cyclictest131rcu_preempt10:08:572
2104299312,22cyclictest23563-21ssh10:11:401
2103499315,5cyclictest5245-21ntpq09:25:270
2105999303,13cyclictest35966irq/58-eth011:20:123
2105199302,22cyclictest29584-21ssh10:34:402
2105999294,14cyclictest0-21swapper/310:15:153
2105199295,14cyclictest27346irq/40-dwc2_hso08:10:122
2105199292,21cyclictest0-21swapper/207:15:152
2105199291,23cyclictest15456-21ssh12:15:152
2104299297,17cyclictest21-21ksoftirqd/110:25:141
2103499294,5cyclictest12470-21find11:35:300
2105199282,22cyclictest28487-21ssh11:10:152
2103499285,6cyclictest10829-1kworker/u9:210:00:200
2103499284,5cyclictest12-21ksoftirqd/010:35:150
2103499282,5cyclictest15884-21memory10:25:250
2103499282,4cyclictest12-21ksoftirqd/012:05:270
2103499282,20cyclictest1017-21ssh11:10:420
2103499281,7cyclictest21878-21ssh09:16:470
21034992817,7cyclictest6683-21diskmemload09:35:150
2103499281,21cyclictest12019-21ssh11:55:140
21034992812,12cyclictest3031-21ssh11:50:140
21034992812,12cyclictest3031-21ssh11:50:130
2103499281,14cyclictest8723-21ssh10:05:140
2105199273,19cyclictest0-21swapper/209:57:402
2105199272,21cyclictest16301-21ssh09:31:402
21051992719,4cyclictest27346irq/40-dwc2_hso09:50:132
2105199271,15cyclictest24881-21ssh10:50:152
2104299271,22cyclictest12003-21ssh11:55:141
2103499274,4cyclictest12-21ksoftirqd/011:40:190
2103499273,4cyclictest21440-21ntp_states10:10:270
2103499272,20cyclictest481kcompactd011:30:160
21034992720,3cyclictest18858-21apt-get08:15:140
2105999263,15cyclictest0-21swapper/309:35:153
2105199265,14cyclictest27346irq/40-dwc2_hso09:20:152
2105199262,17cyclictest27-21ksoftirqd/211:35:132
2105199261,20cyclictest27346irq/40-dwc2_hso11:20:132
2105199261,13cyclictest22921-21sh11:25:122
2104299263,20cyclictest16038-21sh09:15:121
2104299262,18cyclictest25492-21ssh11:44:191
21042992617,7cyclictest21-21ksoftirqd/110:05:161
2103499269,10cyclictest22896-21apt-get11:25:110
2103499268,13cyclictest0-21swapper/009:50:140
2103499265,8cyclictest12-21ksoftirqd/009:40:190
2103499265,4cyclictest12-21ksoftirqd/007:20:120
2103499263,6cyclictest12-21ksoftirqd/012:20:220
2103499263,6cyclictest12-21ksoftirqd/012:20:210
2103499262,19cyclictest19493-21ssh11:05:160
2103499262,18cyclictest13305-21sh09:49:400
21034992619,3cyclictest26004-21apt-get07:15:130
2103499261,7cyclictest14240-21ps09:30:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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