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2026-01-12 - 11:28
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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 rack5slot2.osadl.org (updated Mon Jan 12, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26892204187,12sleep30-21swapper/319:07:343
28112197181,11sleep10-21swapper/119:09:071
26712188171,12sleep00-21swapper/019:07:190
28742172155,12sleep20-21swapper/219:09:572
147602450,0sleep014755-21gltestperf23:55:140
173442420,0sleep10-21swapper/123:09:161
186592410,0sleep30-21swapper/322:54:013
17162170,0sleep21717-21ssh22:45:182
28581290,0sleep10-21swapper/123:45:381
28470290,0sleep10-21swapper/122:26:391
30529981,1cyclictest3-21ksoftirqd/000:20:010
30529981,1cyclictest13564-21latency_hist20:35:000
30529980,4cyclictest13600-21munin-run19:30:000
30529975,0cyclictest3-21ksoftirqd/000:35:200
30529974,1cyclictest3-21ksoftirqd/022:50:120
30529973,2cyclictest3-21ksoftirqd/023:50:010
30529973,1cyclictest3-21ksoftirqd/000:30:000
30529972,1cyclictest3-21ksoftirqd/022:20:200
30529972,1cyclictest3-21ksoftirqd/021:20:130
30529971,2cyclictest3-21ksoftirqd/020:20:010
30529971,1cyclictest3-21ksoftirqd/023:40:120
30529971,1cyclictest3-21ksoftirqd/023:00:160
30529971,1cyclictest3-21ksoftirqd/022:25:130
30529971,1cyclictest3-21ksoftirqd/021:55:020
30529971,1cyclictest3-21ksoftirqd/021:55:020
30529971,1cyclictest3-21ksoftirqd/019:45:190
30529970,4cyclictest19256-21munin-run21:20:010
30529970,1cyclictest3-21ksoftirqd/021:40:150
30589960,6cyclictest0-21swapper/223:29:522
30529964,0cyclictest3-21ksoftirqd/021:50:180
30529964,0cyclictest3-21ksoftirqd/020:05:220
30529964,0cyclictest3-21ksoftirqd/019:30:190
30529963,2cyclictest3-21ksoftirqd/000:29:270
30529963,1cyclictest3-21ksoftirqd/021:05:140
30529963,1cyclictest3-21ksoftirqd/020:35:180
30529962,2cyclictest3-21ksoftirqd/023:10:110
30529962,2cyclictest3-21ksoftirqd/022:55:090
30529962,0cyclictest3-21ksoftirqd/022:05:180
30529961,3cyclictest3-21ksoftirqd/020:20:110
30529961,2cyclictest3-21ksoftirqd/023:15:120
30529961,1cyclictest3-21ksoftirqd/023:05:120
30529961,1cyclictest3-21ksoftirqd/022:15:010
30529961,1cyclictest3-21ksoftirqd/000:00:130
30529961,0cyclictest81rcu_preempt00:20:130
30529960,4cyclictest0-21swapper/021:25:110
30529960,1cyclictest32017-21fschecks_count21:10:120
30529960,1cyclictest3-21ksoftirqd/023:25:000
30529960,1cyclictest3-21ksoftirqd/022:45:150
30529960,1cyclictest3-21ksoftirqd/022:30:010
30529960,1cyclictest3-21ksoftirqd/021:35:130
30529960,1cyclictest3-21ksoftirqd/020:45:010
30529960,1cyclictest3-21ksoftirqd/020:30:000
30529960,1cyclictest3-21ksoftirqd/019:35:140
30529960,1cyclictest3-21ksoftirqd/019:15:240
30529960,1cyclictest3-21ksoftirqd/000:10:160
30529960,1cyclictest0-21swapper/023:35:140
30529960,1cyclictest0-21swapper/023:30:140
30529960,0cyclictest0-21swapper/021:45:110
23829260,0sleep30-21swapper/300:15:193
30639955,0cyclictest0-21swapper/323:19:343
30639952,3cyclictest14590-21kworker/3:120:55:113
30639952,3cyclictest14590-21kworker/3:119:25:123
30639951,4cyclictest14590-21kworker/3:120:00:143
30639951,4cyclictest14590-21kworker/3:119:55:123
30639951,4cyclictest14590-21kworker/3:119:35:163
30639951,4cyclictest14590-21kworker/3:119:30:203
30639951,4cyclictest14590-21kworker/3:119:20:123
30639951,4cyclictest14590-21kworker/3:119:15:233
30639951,4cyclictest14590-21kworker/3:119:10:193
30639950,5cyclictest0-21swapper/323:54:383
30639950,5cyclictest0-21swapper/323:32:563
30639950,5cyclictest0-21swapper/322:16:153
30639950,4cyclictest23934-21apt-get19:50:113
30639950,0cyclictest0-21swapper/322:44:463
30639950,0cyclictest0-21swapper/321:33:463
30589955,0cyclictest0-21swapper/223:41:032
30589950,5cyclictest0-21swapper/223:35:482
30589950,5cyclictest0-21swapper/220:00:182
30589950,0cyclictest0-21swapper/221:10:532
30549951,3cyclictest0-21swapper/123:20:111
30549950,3cyclictest0-21swapper/121:40:121
30529954,0cyclictest3-21ksoftirqd/023:55:000
30529954,0cyclictest3-21ksoftirqd/023:20:190
30529954,0cyclictest3-21ksoftirqd/022:40:110
30529954,0cyclictest3-21ksoftirqd/022:35:150
30529954,0cyclictest3-21ksoftirqd/022:00:160
30529954,0cyclictest3-21ksoftirqd/019:50:000
30529953,1cyclictest3-21ksoftirqd/020:50:140
30529953,0cyclictest3-21ksoftirqd/020:10:220
30529952,2cyclictest3-21ksoftirqd/000:05:100
30529952,0cyclictest3-21ksoftirqd/020:01:320
30529951,1cyclictest3-21ksoftirqd/022:15:130
30529951,1cyclictest3-21ksoftirqd/021:00:110
30529951,1cyclictest3-21ksoftirqd/020:45:110
30529951,1cyclictest3-21ksoftirqd/019:40:170
30529951,1cyclictest3-21ksoftirqd/019:20:190
30529950,1cyclictest3-21ksoftirqd/021:30:120
30529950,1cyclictest3-21ksoftirqd/019:10:110
30529950,0cyclictest0-21swapper/019:55:130
30639944,0cyclictest0-21swapper/321:39:453
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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