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2025-12-05 - 23:33

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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.

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 rackbslot5s.osadl.org (updated Fri Dec 05, 2025 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1663125995238,11cyclictest121ktimers/012:25:140
1663139994815,29cyclictest1707233-21fschecks_time10:05:183
1663139994719,24cyclictest0-21swapper/311:40:243
1663139994717,3cyclictest0-21swapper/310:30:003
1663133994638,6cyclictest1730507-21kworker/u8:1+events_unbound11:55:122
1663125994625,16cyclictest13650irq/42-30be0000.ethernet09:30:140
1663139994536,5cyclictest1739408-21munin-plugin-st11:40:003
1663139994520,21cyclictest0-21swapper/312:20:253
1663139994516,3cyclictest0-21swapper/310:35:213
1663139994513,6cyclictest1720006-21grep10:40:233
1663139994412,4cyclictest0-21swapper/311:30:263
1663129994334,5cyclictest1736004-21ls11:30:001
1663139994214,4cyclictest0-21swapper/310:50:253
1663139994213,4cyclictest0-21swapper/312:05:273
1663139994213,4cyclictest0-21swapper/312:05:273
1663125994235,4cyclictest121ktimers/009:10:090
1663133994028,7cyclictest0-21swapper/208:55:202
166312599404,14cyclictest11-21ksoftirqd/012:05:130
166312599404,14cyclictest11-21ksoftirqd/012:05:130
1663139993915,3cyclictest0-21swapper/312:40:003
1663139993915,3cyclictest0-21swapper/312:30:223
1663133993831,5cyclictest1669536-21kworker/u8:0+events_unbound07:44:122
1663133993831,5cyclictest1669536-21kworker/u8:0+events_unbound07:44:122
1663133993830,5cyclictest1713181-21unixbench_singl10:20:252
1663129993829,4cyclictest0-21swapper/109:45:161
1663139993713,4cyclictest0-21swapper/307:55:003
1663129993729,4cyclictest0-21swapper/108:40:011
166312599371,9cyclictest11-21ksoftirqd/011:20:120
1663133993626,7cyclictest440-21cron07:50:002
1663133993625,7cyclictest1749856-21idleruntime-cro12:10:002
1663133993625,7cyclictest1749856-21idleruntime-cro12:10:002
1663129993629,4cyclictest1699961-21cron09:45:011
1663129993628,4cyclictest0-21swapper/108:14:161
1663129993627,4cyclictest0-21swapper/112:00:001
1663129993625,8cyclictest1741724-21cut11:45:181
1663133993527,4cyclictest0-21swapper/209:20:012
1663129993525,7cyclictest0-21swapper/111:40:001
1663125993529,4cyclictest1716765-21kworker/u8:0+events_unbound10:34:470
1663139993426,4cyclictest0-21swapper/309:45:253
1663133993424,6cyclictest0-21swapper/212:40:002
1663129993427,4cyclictest0-21swapper/111:25:001
1663129993427,4cyclictest0-21swapper/109:00:021
1663129993427,4cyclictest0-21swapper/108:35:011
1663129993426,4cyclictest1724063-21munin-plugin-st10:55:011
166312599341,10cyclictest1677532-21cron08:15:010
1663139993325,4cyclictest0-21swapper/311:55:173
1663139993325,4cyclictest0-21swapper/309:30:273
1663133993326,4cyclictest1696340-21latency_hist09:35:012
1663133993324,6cyclictest0-21swapper/207:40:002
1663133993323,6cyclictest0-21swapper/211:15:162
1663125993327,4cyclictest1724039-21kworker/u8:2+events_unbound11:14:540
1663125993325,4cyclictest0-21swapper/011:40:000
1663139993222,7cyclictest0-21swapper/310:50:013
1663133993225,4cyclictest0-21swapper/211:00:012
1663133993224,4cyclictest0-21swapper/211:00:252
166313399321,6cyclictest131rcu_preempt09:55:142
1663129993224,4cyclictest0-21swapper/111:00:161
1663125993220,8cyclictest1704644-21grep09:55:260
1663125993219,9cyclictest1683128-21grep08:40:260
1663139993124,4cyclictest0-21swapper/307:40:003
1663133993124,4cyclictest1708172-21kworker/u8:0+events_unbound10:19:442
1663133993123,4cyclictest0-21swapper/210:50:252
1663133993123,4cyclictest0-21swapper/209:54:382
1663133993118,5cyclictest1662666-21kworker/u8:1+events_unbound07:15:282
1663129993123,4cyclictest0-21swapper/109:15:151
1663125993125,4cyclictest1668124-21kworker/u8:1+events_unbound07:30:020
1663125993123,4cyclictest1757917-21grep12:30:270
1663125993122,7cyclictest1732280-21kworker/u8:0+events_unbound11:19:540
1663125993122,5cyclictest0-21swapper/008:00:010
1663125993120,7cyclictest1713179-21grep10:20:250
1663125993120,3cyclictest131rcu_preempt08:40:020
1663125993110,11cyclictest11-21ksoftirqd/009:20:000
1663139993023,3cyclictest0-21swapper/311:45:173
1663139993022,4cyclictest0-21swapper/309:40:003
1663133993023,4cyclictest0-21swapper/212:20:002
1663133993022,4cyclictest1720008-21head10:40:242
1663133993021,4cyclictest0-21swapper/211:29:542
1663133993020,7cyclictest1664305-21grep07:10:232
166312999308,10cyclictest24-21ksoftirqd/109:50:121
1663129993023,4cyclictest0-21swapper/108:25:151
166312599309,13cyclictest11-21ksoftirqd/010:05:260
166312599303,3cyclictest131rcu_preempt11:45:050
1663125993024,4cyclictest1695994-21kworker/u8:2+events_unbound09:49:390
1663125993024,4cyclictest1695994-21kworker/u8:2+events_unbound09:39:380
1663125993022,4cyclictest0-21swapper/012:35:020
1663125993019,7cyclictest1710194-21awk10:15:000
1663125993010,5cyclictest131rcu_preempt12:21:290
1663125993010,11cyclictest11-21ksoftirqd/010:55:010
166312599300,6cyclictest11-21ksoftirqd/008:25:120
1663133992922,4cyclictest0-21swapper/208:25:012
1663133992921,4cyclictest0-21swapper/212:00:142
1663129992924,3cyclictest1732320-21sh11:17:011
1663129992920,6cyclictest0-21swapper/112:15:161
1663129992919,6cyclictest0-21swapper/107:15:011
166312599299,10cyclictest0-21swapper/011:01:510
166312599298,6cyclictest131rcu_preempt09:30:010
166312599297,10cyclictest0-21swapper/007:13:510
1663125992920,7cyclictest1687452-21kworker/u8:1+events_unbound09:06:330
1663125992920,6cyclictest1706324-21grep10:00:290
1663125992919,6cyclictest1725746-21cron11:00:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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