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2026-06-30 - 17:21
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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 Tue Jun 30, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271049979674031,3893cyclictest16542-21kworker/0:107:14:060
271049954863018,2458cyclictest16542-21kworker/0:107:15:420
266912775182,203sleep00-21swapper07:07:130
271049949933,452cyclictest20911-21ssh09:36:250
271049948734,440cyclictest7763-21diskmemload12:36:140
271049948734,439cyclictest31858-21ssh12:17:370
271049948734,439cyclictest23449-21ssh09:41:350
271049948734,439cyclictest14589-21ssh09:24:040
271049948733,440cyclictest22260-21ssh11:56:410
271049948634,439cyclictest8094-21ssh10:18:580
271049948634,439cyclictest21787-21ssh10:47:060
271049948633,439cyclictest3438-21apt-get11:17:150
271049948633,439cyclictest25780-21strings10:55:560
271049948532,439cyclictest11686-21grep10:25:550
271049948434,437cyclictest16562-21ssh09:27:240
271049948432,439cyclictest2746-21ssh10:06:330
271049948432,438cyclictest29416-21ssh12:12:080
271049948431,439cyclictest13934-21ssh10:30:490
271049947734,429cyclictest9982-21chrt10:21:530
271049947535,379cyclictest7763-21diskmemload12:20:180
271049947532,382cyclictest19031-21df_abs11:50:370
271049946834,374cyclictest23623-21ssh10:51:060
271049946834,253cyclictest2462-21munin-node12:25:260
271049946632,434cyclictest0-21swapper07:25:310
271049946533,372cyclictest4744-21munin-node11:20:300
271049946032,368cyclictest18975-21ssh09:32:400
271049945933,152cyclictest26555-21ssh12:06:100
271049944664,190cyclictest6299-31copy07:39:090
271049943931,358cyclictest11871-21ssh09:17:320
271049943754,320cyclictest4305-21snmpd07:50:260
271049943155,315cyclictest336-21ssh10:01:280
271049942953,362cyclictest6151-21awk09:05:200
271049942628,384cyclictest21509-21latency_hist08:20:020
271049942353,311cyclictest12678-21cstates11:36:260
271049941728,376cyclictest28931-21sh09:55:010
271049941555,346cyclictest16457-21sed11:45:290
271049941132,366cyclictest29560-21ssh11:05:040
271049941030,366cyclictest23177-21munin-node12:00:170
271049940864,285cyclictest23972sleep008:55:230
271049940822,373cyclictest1449-21ssh11:13:380
271049940736,357cyclictest8146-21ssh11:26:330
271049940734,361cyclictest31528-21ssh11:08:320
271049940634,359cyclictest19803-21ssh10:43:430
271049940634,359cyclictest17568-21ssh10:39:170
271049940554,292cyclictest4924-21runrttasks09:01:030
271049940551,341cyclictest25887-21ssh09:47:010
271049940534,357cyclictest5940-21ssh10:14:420
271049940533,359cyclictest10937-21ssh11:33:330
271049940533,251cyclictest5424-21grep12:30:380
271049940532,373cyclictest0-21swapper08:08:290
271049940453,291cyclictest32358-21runrttasks08:47:280
271049940452,170cyclictest10583-21kworker/u2:309:55:410
271049940431,359cyclictest10117-21ssh09:15:010
271049940414,94cyclictest6710-21grep07:40:130
271049940353,168cyclictest25689-21munin-node08:30:250
271049940350,339cyclictest14909-21ssh11:41:190
271049940172,270cyclictest27966-21strings08:35:390
271049939531,350cyclictest14858-21memory08:00:330
271049939232,347cyclictest43972sleep007:33:400
271049939131,347cyclictest23697-21kworker/0:208:42:130
271049938833,341cyclictest9402-21strings07:45:400
271049938535,350cyclictest0-21swapper07:22:320
271049938531,340cyclictest4924-21runrttasks08:10:130
271049938229,340cyclictest11-21ksoftirqd/008:20:120
271049938034,285cyclictest4924-21runrttasks08:54:240
271049937735,281cyclictest14142-21wc08:00:040
271049936133,314cyclictest24631-21cstates08:25:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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