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2026-06-03 - 15:57
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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 rackaslot8.osadl.org (updated Wed Jun 03, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90102326295,20sleep20-21swapper/207:09:382
86962272242,20sleep10-21swapper/107:05:511
87562271211,20sleep30-21swapper/307:06:373
88672268212,17sleep00-21swapper/007:08:030
67022700,0sleep00-21swapper/009:14:430
45252600,0sleep00-21swapper/012:26:400
300752590,0sleep20-21swapper/212:22:452
86372570,0sleep30-21swapper/312:10:133
39402560,0sleep00-21swapper/009:50:560
114052540,0sleep00-21swapper/009:16:550
302632520,0sleep10-21swapper/109:47:411
276912210,0sleep30-21swapper/309:45:423
307712190,0sleep10-21swapper/112:03:591
307312170,0sleep10-21swapper/111:44:371
260402170,0sleep20-21swapper/211:41:012
317222140,0sleep00-21swapper/009:29:330
201372140,0sleep00-21swapper/009:22:160
170772130,1sleep217078-21fschecks_count07:25:152
90472110,0sleep20-21swapper/211:30:482
259812100,0sleep10-21swapper/111:21:421
91539997,1cyclictest28-21ksoftirqd/208:25:002
91479992,4cyclictest10305-21basename10:15:000
21094290,0sleep30-21swapper/310:01:163
91579984,3cyclictest275-21systemd-journal08:44:323
91539982,3cyclictest504-21dbus-daemon10:00:012
91519983,3cyclictest275-21systemd-journal09:44:081
91519983,3cyclictest275-21systemd-journal09:44:081
91479984,3cyclictest2048-21ssh10:48:240
23481280,0sleep10-21swapper/109:24:491
91579974,3cyclictest34-21ksoftirqd/308:20:003
91579973,3cyclictest658-21snmpd09:43:253
91579973,3cyclictest658-21snmpd09:43:253
91579973,3cyclictest504-21dbus-daemon09:00:123
91579973,3cyclictest275-21systemd-journal10:49:393
91579973,3cyclictest275-21systemd-journal09:27:013
91579973,3cyclictest1-21systemd11:20:183
91579973,2cyclictest275-21systemd-journal11:09:193
91579973,1cyclictest0-21swapper/311:52:403
91539975,1cyclictest28-21ksoftirqd/207:35:132
91539973,3cyclictest658-21snmpd11:22:592
91539973,3cyclictest658-21snmpd08:00:112
91539972,3cyclictest27636-21munin-run07:50:012
91539970,1cyclictest925-21kworker/u8:112:29:262
91539970,1cyclictest0-21swapper/212:00:112
91519973,3cyclictest275-21systemd-journal12:20:121
91519972,2cyclictest6317-21cron08:19:551
91519972,1cyclictest32108-21awk08:00:011
91519971,5cyclictest22-21ksoftirqd/107:15:011
91479975,1cyclictest12-21ksoftirqd/011:40:010
91479974,2cyclictest275-21systemd-journal09:39:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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