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2025-07-16 - 01:37
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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 50 highest latencies:
System rack5slot2.osadl.org (updated Tue Jul 15, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
191952199182,12sleep10-21swapper/107:07:111
191252191175,11sleep30-21swapper/307:06:173
190822187170,12sleep00-21swapper/007:05:410
172012175159,12sleep20-21swapper/207:05:112
211782500,1sleep021158-21cron10:50:010
139122460,0sleep10-21swapper/112:07:201
37342440,0sleep00-21swapper/009:35:460
190362420,0sleep30-21swapper/310:15:373
69262390,0sleep00-21swapper/010:25:430
306812380,0sleep10-21swapper/111:59:561
221832130,0sleep30-21swapper/312:28:083
154562130,0sleep10-21swapper/111:35:171
264122110,0sleep10-21swapper/109:47:241
195859992,3cyclictest12351-21munin-run09:05:010
19835280,0sleep00-21swapper/012:26:370
3922270,0sleep10-21swapper/109:20:141
196009976,0cyclictest40-21ksoftirqd/311:20:153
196009966,0cyclictest40-21ksoftirqd/310:50:013
196009964,2cyclictest40-21ksoftirqd/309:30:133
195919961,3cyclictest0-21swapper/111:10:131
8755250,0sleep10-21swapper/109:38:561
3371250,0sleep00-21swapper/007:40:120
196009955,0cyclictest40-21ksoftirqd/311:55:143
196009955,0cyclictest40-21ksoftirqd/311:35:013
196009955,0cyclictest40-21ksoftirqd/311:35:013
196009955,0cyclictest40-21ksoftirqd/311:30:013
196009955,0cyclictest40-21ksoftirqd/310:25:013
196009955,0cyclictest40-21ksoftirqd/310:00:143
196009955,0cyclictest40-21ksoftirqd/309:15:143
196009955,0cyclictest391ktimersoftd/311:10:143
196009954,1cyclictest40-21ksoftirqd/312:35:133
196009954,1cyclictest40-21ksoftirqd/311:05:023
196009954,1cyclictest40-21ksoftirqd/310:15:013
196009953,1cyclictest40-21ksoftirqd/308:40:133
196009950,5cyclictest28974-21apt-get10:05:133
196009950,5cyclictest0-21swapper/311:45:163
196009950,5cyclictest0-21swapper/311:44:323
196009950,5cyclictest0-21swapper/309:10:183
196009950,4cyclictest12765-21apt-get09:05:013
196009950,4cyclictest0-21swapper/310:30:123
196009950,4cyclictest0-21swapper/308:45:123
195959950,5cyclictest0-21swapper/210:20:132
195959950,5cyclictest0-21swapper/208:55:132
195959950,4cyclictest0-21swapper/212:00:122
195959950,4cyclictest0-21swapper/210:05:132
195959950,4cyclictest0-21swapper/207:45:142
195959950,2cyclictest0-21swapper/208:45:172
195919951,3cyclictest0-21swapper/107:25:141
195919951,2cyclictest0-21swapper/112:00:121
195919951,2cyclictest0-21swapper/107:45:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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