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2026-06-17 - 03:58
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OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #e, 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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackeslot6.osadl.org (updated Wed Jun 17, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
254687199135128,5cyclictest2611068-21kworker/u8:1+events_unbound23:10:000
254687199132123,6cyclictest2636729-21kworker/u8:1+events_unbound00:00:000
254687399125117,5cyclictest2569328-21latency_hist20:20:011
254687399116105,8cyclictest1213033-21systemd-journal19:25:011
254687199116108,6cyclictest2587070-21kworker/u8:1+events_unbound21:20:250
254687199115109,4cyclictest2580446-21kworker/u8:2+flush-179:021:05:250
254687199114107,5cyclictest2636729-21kworker/u8:1+events_unbound23:50:240
254687199114107,5cyclictest2580446-21kworker/u8:2+flush-179:021:35:000
254687199112101,8cyclictest2586834-21latency_hist21:15:010
25468719910999,7cyclictest2625384-21kworker/u8:2+events_unbound23:30:010
25468719910994,12cyclictest1213033-21systemd-journal22:25:010
254687199108100,5cyclictest2611068-21kworker/u8:1+events_unbound22:50:250
25468719910798,7cyclictest2604642-21kworker/u8:2+flush-179:022:10:010
2546871991071,104cyclictest1-21systemd22:40:000
25468739910491,10cyclictest1213033-21systemd-journal21:50:001
25468719910498,4cyclictest2559519-21kworker/u8:3+flush-179:020:05:230
25468719910397,4cyclictest2551045-21kworker/u8:0+events_unbound19:25:270
25468719910394,6cyclictest2580446-21kworker/u8:2+events_unbound21:00:010
25468719910394,6cyclictest2580446-21kworker/u8:2+events_unbound21:00:010
25468719910296,5cyclictest2620548-21kworker/u8:0+flush-179:023:00:270
25468719910191,7cyclictest2548616-21kworker/u8:1+flush-179:019:15:140
2546873999989,7cyclictest2553161-21latency_hist19:30:011
2546871999993,4cyclictest2645510-21kworker/u8:2+flush-179:000:20:210
2546871999894,3cyclictest2570955-21kworker/u8:2+events_unbound20:40:260
2546871999791,4cyclictest2587070-21kworker/u8:1+flush-179:021:40:130
2546871999690,4cyclictest2587070-21kworker/u8:1+events_unbound21:45:250
2546871999488,4cyclictest2598328-21kworker/u8:3+flush-179:022:45:240
2546871999481,4cyclictest2650034-21kworker/u8:0+events_unbound00:35:010
2546871999386,5cyclictest2611068-21kworker/u8:1+flush-179:023:15:200
2546871999385,6cyclictest2619211-21/usr/sbin/munin22:55:240
2546873999281,8cyclictest2612619-21latency_hist22:35:021
2546871999286,4cyclictest2611068-21kworker/u8:1+events_unbound23:20:130
2546871999185,4cyclictest2587070-21kworker/u8:1+flush-179:022:10:190
2546871999184,4cyclictest2559519-21kworker/u8:3+events_unbound20:00:140
2546871999182,6cyclictest2609424-21kworker/u8:0+flush-179:022:25:160
2546871999085,4cyclictest2561148-21kworker/u8:1+events_unbound19:55:240
2546871999083,5cyclictest2546822-21kworker/u8:0+events_unbound19:10:250
2546871999078,5cyclictest2561145-21kworker/u8:0+events_unbound20:10:210
2546873998883,4cyclictest2587070-21kworker/u8:1+flush-179:021:20:211
2546871998884,3cyclictest2575749-21kworker/u8:1+flush-179:021:00:190
2546871998882,4cyclictest2611068-21kworker/u8:1+events_unbound22:45:010
2546873998781,3cyclictest2556389-21kworker/u8:2+flush-179:019:45:251
2546873998670,14cyclictest2569583-21kworker/u8:1+flush-179:020:25:001
2546871998679,4cyclictest2556389-21kworker/u8:2+events_unbound19:45:210
2546871998580,4cyclictest2554786-21pluginstate19:35:000
2546871998580,4cyclictest2551045-21kworker/u8:0+events_unbound19:35:220
2546871998577,6cyclictest2561112-21latency_hist19:55:000
2546871998479,3cyclictest2633285-21kworker/u8:3+flush-179:000:00:210
2546871998478,5cyclictest2622204-21kworker/u8:3+events_unbound23:10:250
2546871998478,4cyclictest2561145-21kworker/u8:0+flush-179:020:45:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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