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2026-06-21 - 11:08
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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 all highest latencies:
System rack6slot5.osadl.org (updated Sun Jun 21, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
307389989404715,4222cyclictest19344-21kworker/0:019:11:520
301882777185,203sleep00-21swapper19:06:140
307389952932,426cyclictest25337-21chrt20:24:500
307389952930,436cyclictest1902-21chrt22:06:230
307389952731,434cyclictest28945-21seq20:34:140
307389952632,432cyclictest17098-21which22:41:300
307389951731,424cyclictest904-21munin-node00:36:500
307389951655,399cyclictest9641-21diskmemload23:01:360
307389951456,396cyclictest9641-21diskmemload23:23:120
307389951329,414cyclictest9641-21diskmemload21:54:370
307389951055,440cyclictest6865-21ssh22:17:540
307389950970,261cyclictest31073-21sshd23:15:220
307389950855,439cyclictest22164-21ssh22:54:320
307389950855,393cyclictest9641-21diskmemload22:39:290
307389950854,440cyclictest3032-21strings20:50:450
307389950854,440cyclictest26507-21ssh21:48:450
307389950762,432cyclictest7410-21chrt23:35:270
307389950753,440cyclictest21739-21ssh00:08:310
307389950654,438cyclictest15401-21ssh23:53:490
307389950653,439cyclictest11013-21ssh22:27:070
307389949955,260cyclictest23631-21ssh00:12:110
307389949255,261cyclictest9641-21diskmemload00:21:220
307389948954,372cyclictest1798-21runrttasks00:40:170
307389948746,427cyclictest905-21apt-get19:17:010
307389948529,393cyclictest32036-21ssh22:01:090
307389947935,382cyclictest6499-21ssh23:32:060
307389947432,427cyclictest3009-21munin-node22:10:460
307389947429,374cyclictest14160-21ntp_states21:20:220
307389947152,348cyclictest17951-21seq20:04:470
307389946752,356cyclictest30560-21ssh21:57:350
307389946553,341cyclictest16480-21cat23:55:570
307389945929,416cyclictest12772-21kworker/u2:321:18:040
307389945532,399cyclictest26757-21grep23:05:170
307389945468,373cyclictest11-21ksoftirqd/020:56:110
307389945333,360cyclictest24087-21kworker/u2:021:42:370
307389945170,367cyclictest19023-21ssh00:01:330
307389945065,372cyclictest20159-21seq21:34:080
30738994501,435cyclictest31324-21ssh00:32:050
307389944933,400cyclictest21897-21ssh21:36:570
307389944892,356cyclictest0-21swapper19:30:070
307389944874,90cyclictest11-21ksoftirqd/021:12:440
307389944633,398cyclictest22828-21sed22:55:410
307389944134,382cyclictest7128-21ntp_states19:35:170
307389944029,388cyclictest3229-21munin-node19:25:110
307389943855,368cyclictest9641-21diskmemload21:26:050
307389943734,332cyclictest24789-21ssh00:15:430
307389943674,362cyclictest0-21swapper19:24:040
307389943663,360cyclictest9641-21diskmemload22:32:280
307389943631,391cyclictest9184-21ssh22:23:440
307389943556,365cyclictest29487-21ssh00:28:430
307389943067,304cyclictest13-21rcuc/023:11:180
307389942655,259cyclictest13279-21ssh23:48:520
307389942653,87cyclictest9641-21diskmemload23:29:580
307389942055,351cyclictest18965-21strings22:46:060
307389941439,89cyclictest29157-21munin-node20:35:110
307389940955,340cyclictest10891-21ssh23:42:330
307389940835,358cyclictest8887-21munin-node19:40:130
307389940346,357cyclictest0-21swapper21:04:050
3073899393126,253cyclictest13-21rcuc/021:09:220
307389939237,355cyclictest0-21swapper20:28:310
307389938955,276cyclictest345450irq/10-yenta20:15:590
307389938431,293cyclictest338750irq/10-eth020:45:550
307389937633,328cyclictest32189-21ps20:41:210
307389937334,325cyclictest14108-21chrt19:53:260
307389936731,320cyclictest14408-21munin-node19:55:350
307389936593,259cyclictest4253-21lldpd19:45:360
307389936433,317cyclictest18706-21head20:05:340
307389936330,318cyclictest20050-21df20:10:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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