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2026-06-06 - 02:18
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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
Characteristics of the 50 highest latencies:
System rack1slot1.osadl.org (updated Sat Jun 06, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38142211178,21sleep00-21swapper/019:05:550
18172210158,25sleep20-21swapper/219:05:012
39712202161,26sleep30-21swapper/319:08:013
38202200163,24sleep10-21swapper/119:06:001
4227991918,1cyclictest9-21ksoftirqd/000:10:180
305802150,0sleep030576-21dpkg23:20:000
422799140,13cyclictest0-21swapper/023:45:180
424599135,3cyclictest61650irq/122-eno100:23:452
424599119,1cyclictest28-21ksoftirqd/222:55:122
4245991110,1cyclictest28-21ksoftirqd/223:05:002
4245991110,1cyclictest28-21ksoftirqd/220:25:002
422799119,1cyclictest9-21ksoftirqd/019:45:000
422799116,1cyclictest21219-21/usr/sbin/munin23:05:190
422799116,1cyclictest1029-21snmpd23:12:490
422799115,1cyclictest28137-21sensors19:55:190
422799115,1cyclictest12755-21ssh21:29:040
422799112,5cyclictest20076-21cat20:50:000
4227991110,1cyclictest25551-21ssh22:29:560
422799110,6cyclictest5406-21ssh21:20:010
422799110,6cyclictest0-21swapper/023:25:120
424599109,1cyclictest28-21ksoftirqd/222:45:002
424599109,1cyclictest28-21ksoftirqd/222:30:002
422799105,1cyclictest1029-21snmpd21:56:530
422799105,1cyclictest1029-21snmpd20:28:270
422799104,0cyclictest29532-21diskmemload21:52:190
422799101,5cyclictest13249-21ssh23:40:110
422799100,5cyclictest0-21swapper/019:30:170
422799100,1cyclictest0-21swapper/021:38:410
111162100,0sleep20-21swapper/222:53:272
42539990,4cyclictest27748-21perf00:04:503
42459998,1cyclictest28-21ksoftirqd/223:25:122
42459998,1cyclictest28-21ksoftirqd/222:20:152
42459998,1cyclictest28-21ksoftirqd/222:01:362
42459992,4cyclictest14581-21apt22:15:112
42459990,9cyclictest0-21swapper/200:01:172
42279997,1cyclictest9-21ksoftirqd/019:30:000
42279994,1cyclictest1029-21snmpd00:22:460
42279991,4cyclictest9851-21cat19:20:010
42279990,1cyclictest10441-21ssh22:09:330
27334290,0sleep10-21swapper/121:47:591
42539987,1cyclictest561-21nscd22:15:203
42539986,1cyclictest15938-21ssh23:42:563
42539986,1cyclictest1029-21snmpd20:55:063
42539985,2cyclictest1029-21snmpd19:11:273
42539981,3cyclictest0-21swapper/321:10:133
42539980,5cyclictest10038-21/usr/sbin/munin19:20:173
42539980,2cyclictest0-21swapper/323:25:243
42459988,0cyclictest0-21swapper/223:09:352
42459987,1cyclictest28-21ksoftirqd/219:40:002
42459986,1cyclictest61650irq/122-eno121:30:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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