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2026-06-23 - 23:17
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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 Mon Jun 22, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59899966713671,2996cyclictest25447-21kworker/0:007:11:540
41152782183,178sleep00-21swapper07:05:070
59899954324,495cyclictest19530-21rm09:14:100
59899952896,371cyclictest11-21ksoftirqd/007:21:530
59899951823,423cyclictest23235-21seq10:37:320
59899951123,426cyclictest29056-21ssh12:07:530
59899950662,374cyclictest14715-21mailstats07:35:140
59899949137,440cyclictest20675-21hddtemp_smartct10:31:320
59899949036,439cyclictest4153-21ssh09:53:420
59899948919,400cyclictest3584-19ntpd12:40:330
59899948836,438cyclictest23714-21ssh09:23:450
59899948661,249cyclictest8292-21ssh12:35:330
59899947925,393cyclictest31433-21ssh12:14:120
59899947722,393cyclictest29841-21rm09:37:200
59899947721,386cyclictest26077-21grep12:00:560
59899947354,357cyclictest17564-21diskmemload10:10:350
59899946954,401cyclictest24626-21awk09:25:460
59899946653,352cyclictest14604-21ssh11:33:230
59899946121,89cyclictest11-21ksoftirqd/011:49:540
59899945993,353cyclictest12-21rcu_preempt08:01:430
59899945790,88cyclictest13-21rcuc/011:15:460
59899945536,419cyclictest0-21swapper09:17:560
59899945475,365cyclictest11-21ksoftirqd/011:56:540
59899945427,355cyclictest13670-21ssh10:15:450
59899945423,416cyclictest7898-21rm10:01:340
5989994512,434cyclictest4894-21runrttasks12:15:190
59899944861,364cyclictest4272-21snmpd07:51:320
59899944723,409cyclictest22474-21rm11:51:560
59899944634,398cyclictest0-21swapper07:16:270
59899944621,409cyclictest16959-21ssh10:23:220
59899944573,359cyclictest0-21swapper11:08:090
59899944521,408cyclictest3425-21open_files08:30:360
59899944325,402cyclictest17564-21diskmemload11:37:020
59899944324,404cyclictest12992-21sshd08:55:510
5989994403,423cyclictest17925-21df_abs10:25:440
59899943770,87cyclictest10513-21ssh10:08:080
59899943721,401cyclictest19126-21expr07:45:430
59899943663,360cyclictest30408-21kworker/u2:312:22:220
59899943625,396cyclictest4272-21snmpd09:43:040
59899943622,399cyclictest10790-21ssh11:25:150
59899943467,353cyclictest11-21ksoftirqd/008:40:520
59899943465,88cyclictest12-21rcu_preempt08:38:390
59899943453,322cyclictest17564-21diskmemload12:35:000
5989994341,372cyclictest0-21swapper09:02:290
59899943173,358cyclictest0-21swapper10:58:280
59899943122,394cyclictest29341-21perl10:51:370
5989994282,365cyclictest22280-21tail07:55:240
59899942768,359cyclictest0-21swapper09:08:240
59899942623,342cyclictest1193-21kworker/u2:209:59:390
59899942566,88cyclictest11-21ksoftirqd/011:02:340
59899942322,386cyclictest19209-21cron11:45:010
59899942253,309cyclictest4502-21strings12:26:050
59899941957,179cyclictest26136-21ntp_states08:05:180
59899941758,300cyclictest28119-21ssh09:34:330
59899941253,345cyclictest4894-21runrttasks08:16:060
59899940822,370cyclictest1027-21munin-node09:46:090
59899940645,347cyclictest6026-21seq11:13:120
59899940426,362cyclictest29594-21cron08:15:000
59899939753,330cyclictest17564-21diskmemload10:46:320
59899939259,161cyclictest5980-21cyclictest10:44:460
59899938924,350cyclictest8608-21sed08:45:200
59899938336,347cyclictest0-21swapper07:32:140
59899938135,346cyclictest0-21swapper08:24:170
59899938053,267cyclictest17564-21diskmemload11:23:060
59899937033,323cyclictest0-21swapper07:28:070
59899936935,273cyclictest4272-21snmpd08:54:550
59899936291,259cyclictest25447-21kworker/0:007:42:400
59899935626,315cyclictest1552-21sed08:25:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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