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2025-12-05 - 20:30

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #0

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.

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 r0s0s.osadl.org (updated Fri Dec 05, 2025 12:46:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22007832333322,8sleep00-21swapper/007:06:010
22010842329319,7sleep60-21swapper/607:10:016
22010452302270,24sleep70-21swapper/707:09:297
22009272299291,5sleep50-21swapper/507:07:595
22007762299262,28sleep40-21swapper/407:05:574
22008262291257,26sleep30-21swapper/307:06:363
22007102290273,10sleep10-21swapper/107:05:051
22007872284264,13sleep20-21swapper/207:06:022
2201554995248,3cyclictest1708265-21systemd-journal12:05:280
2201560994139,2cyclictest2227410-21kworker/u16:0+flush-8:010:10:276
2201557993836,2cyclictest2212679-21kworker/u16:0+events_unbound07:55:203
2201555993730,6cyclictest833-21snmpd09:30:211
2201556993530,4cyclictest833-21snmpd12:13:442
2201556993529,5cyclictest833-21snmpd09:44:512
220155599350,34cyclictest0-21swapper/109:10:081
220155599340,33cyclictest0-21swapper/108:55:381
2201554993430,3cyclictest2283774-21cat10:55:160
2201561993330,2cyclictest833-21snmpd10:53:147
2201561993330,2cyclictest833-21snmpd10:39:507
2201561993330,2cyclictest833-21snmpd08:58:027
2201561993330,2cyclictest833-21snmpd08:10:177
2201559993330,2cyclictest833-21snmpd10:43:565
2201559993330,2cyclictest833-21snmpd09:37:155
220155999330,30cyclictest0-21swapper/511:50:245
220155999330,30cyclictest0-21swapper/509:48:245
220155999330,30cyclictest0-21swapper/508:09:425
2201558993331,2cyclictest2200384-21kworker/u16:1+flush-8:007:20:004
2201556993330,2cyclictest833-21snmpd11:11:092
2201556993330,2cyclictest833-21snmpd08:23:492
2201555993329,3cyclictest833-21snmpd07:18:171
2201554993330,2cyclictest833-21snmpd11:38:340
2201554993330,2cyclictest833-21snmpd08:20:390
2201554993330,2cyclictest2288488-21cat11:05:140
2201554993330,2cyclictest2276707-21cat10:40:130
220155499330,30cyclictest0-21swapper/012:01:100
220155499330,30cyclictest0-21swapper/007:14:410
2201561993230,2cyclictest833-21snmpd11:26:097
2201561993230,1cyclictest833-21snmpd12:11:197
2201561993229,2cyclictest833-21snmpd10:17:167
220156199320,30cyclictest0-21swapper/711:06:147
2201560993230,2cyclictest833-21snmpd08:37:286
2201559993230,2cyclictest833-21snmpd11:16:155
2201559993230,2cyclictest833-21snmpd10:38:585
2201559993229,2cyclictest833-21snmpd08:45:345
220155999320,31cyclictest2214358-21grep07:55:125
220155999320,31cyclictest0-21swapper/507:37:355
220155999320,30cyclictest0-21swapper/510:46:355
2201558993230,2cyclictest833-21snmpd10:01:564
2201558993228,2cyclictest2251164-21mailstats09:45:264
2201557993230,2cyclictest833-21snmpd11:48:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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