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2026-07-29 - 06:38
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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 highest latencies:
System rack6slot5.osadl.org (updated Wed Jul 29, 2026 00:46:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89509967273702,3021cyclictest15362-21kworker/0:019:15:300
89509965383256,3269cyclictest15362-21kworker/0:019:14:050
86982771182,204sleep00-21swapper19:08:340
89509953434,439cyclictest32687-21munin-node21:35:330
89509953090,380cyclictest4167-21sshd23:17:220
89509952956,459cyclictest21486-21diskmemload21:40:500
89509952531,433cyclictest17729-21needreboot19:30:410
89509952432,430cyclictest1333-21awk20:15:220
89509951556,445cyclictest7820-21ssh23:09:350
89509950754,440cyclictest3395-21ssh22:59:390
89509950653,439cyclictest26975-21strings19:55:430
89509950653,439cyclictest24681-21ssh22:32:160
89509950270,371cyclictest21486-21diskmemload21:24:270
89509949353,415cyclictest4773-21munin-node23:01:230
89509948756,255cyclictest1073-21ssh22:53:400
89509948452,417cyclictest8307-21ssh00:25:460
89509948153,414cyclictest28047-21munin-node21:26:440
89509947633,383cyclictest25297-21kworker/u2:221:19:210
89509947456,357cyclictest21486-21diskmemload00:39:240
89509947255,357cyclictest219142sleep023:41:140
89509947253,358cyclictest30690-21seq22:46:280
89509947054,355cyclictest21486-21diskmemload21:52:070
89509947038,372cyclictest0-21swapper20:03:130
89509946756,350cyclictest21486-21diskmemload00:07:160
89509946731,421cyclictest18211-21python22:16:210
89509946652,353cyclictest21195-21kworker/u2:222:36:280
89509946571,88cyclictest10845-21unixbench-2d00:31:200
89509946153,347cyclictest11677-21ssh22:01:100
89509946032,414cyclictest4602-21gltestperf21:45:330
89509946030,414cyclictest21486-21diskmemload00:21:510
89509945872,373cyclictest15903-21strings19:25:430
89509945156,381cyclictest4924-21runrttasks23:30:460
89509945133,404cyclictest3536-21df00:15:280
89509945063,374cyclictest9851-21ssh23:14:000
89509945055,324cyclictest29064-21ssh22:42:460
89509945053,383cyclictest12684-21ssh23:20:370
89509944864,371cyclictest21486-21diskmemload00:04:060
89509944532,399cyclictest25896-21seq19:53:270
89509944530,400cyclictest21727-21ntp_states21:10:240
89509943979,348cyclictest351950irq/10-yenta23:58:140
89509943830,394cyclictest16094-21ssh23:28:010
89509943753,89cyclictest11-21ksoftirqd/021:32:040
89509943466,88cyclictest24530-21ssh23:47:120
89509943464,357cyclictest9447-21strings21:56:050
89509943430,390cyclictest23095-21ssh22:27:580
89509943072,300cyclictest26227-21kworker/u2:123:52:280
89509943065,305cyclictest4285-21lldpd20:40:300
89509942956,187cyclictest9082-21sed20:35:290
89509942690,277cyclictest351950irq/10-yenta23:39:050
89509942655,189cyclictest31268-21sshd20:06:540
89509942256,352cyclictest15650-21ssh00:43:080
8950994221,361cyclictest0-21swapper20:14:200
89509942147,91cyclictest11-21ksoftirqd/020:50:570
89509941466,348cyclictest0-21swapper20:47:150
89509941253,344cyclictest21486-21diskmemload22:11:050
89509941153,232cyclictest351950irq/10-yenta22:21:000
89509941053,344cyclictest14231-21kworker/u2:119:23:110
89509939939,302cyclictest0-21swapper22:08:200
89509939553,328cyclictest1075-21kworker/u2:300:12:020
89509939132,346cyclictest23803-21kworker/0:020:23:510
89509939132,301cyclictest0-21swapper20:27:570
89509939053,278cyclictest19087-21runrttasks21:01:060
89509938753,283cyclictest8542-21sh20:35:010
89509938732,355cyclictest0-21swapper19:37:240
89509938553,318cyclictest4305-21snmpd20:57:590
89509938452,332cyclictest0-21swapper21:09:560
89509936594,259cyclictest4285-21lldpd19:43:250
89509936231,318cyclictest23678-21cstates19:46:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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