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2026-09-09 - 12:03
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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 Sep 09, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221469979454225,3670cyclictest1424-21kworker/0:219:14:070
221469976893796,3842cyclictest1424-21kworker/0:219:19:190
221469958433212,2627cyclictest1424-21kworker/0:219:20:530
218632841183,203sleep00-21swapper19:08:180
221469949334,278cyclictest2409-21diskmemload21:36:420
221469948934,440cyclictest2409-21diskmemload00:03:450
221469948834,441cyclictest18064-21ssh22:56:130
221469948834,440cyclictest2409-21diskmemload23:41:440
221469948834,440cyclictest2409-21diskmemload22:27:250
221469948834,440cyclictest2409-21diskmemload21:47:180
221469948834,440cyclictest21774-21ssh00:17:140
221469948734,440cyclictest4924-21runrttasks22:44:100
221469948734,440cyclictest2662-21ssh21:10:250
221469948734,440cyclictest21502-21seq23:05:120
221469948734,440cyclictest12703-21ssh21:31:250
221469948734,439cyclictest2409-21diskmemload23:57:130
221469948734,439cyclictest2409-21diskmemload23:34:130
221469948734,439cyclictest2409-21diskmemload22:33:460
221469948734,439cyclictest17464-21ssh00:07:480
221469948733,440cyclictest8497-21ntpq22:35:320
221469948634,439cyclictest27441-21ssh23:17:080
221469948634,439cyclictest2409-21diskmemload23:46:490
221469948634,439cyclictest2409-21diskmemload23:11:470
221469948634,439cyclictest2409-21diskmemload21:17:550
221469948634,439cyclictest19554-21ssh00:12:130
221469948634,438cyclictest13091-21ssh22:45:370
221469948633,440cyclictest4924-21runrttasks23:28:450
221469948633,440cyclictest28650-21ssh22:07:150
221469948633,440cyclictest10055-21nfs_client21:25:520
221469948633,439cyclictest2409-21diskmemload23:23:110
221469948633,439cyclictest10197-21ssh23:51:150
221469948534,438cyclictest28728-21ssh00:33:410
221469948534,438cyclictest17592-21ssh21:42:330
22146994839,452cyclictest591-21apt-get22:17:130
221469948331,439cyclictest24491-21ssh00:24:390
221469946733,434cyclictest0-21swapper21:01:100
221469945432,409cyclictest4305-21snmpd21:07:550
221469941839,366cyclictest0-21swapper23:39:110
221469941834,88cyclictest9943-21munin-node20:00:490
221469941748,369cyclictest0-21swapper19:39:000
221469941575,282cyclictest22139-21cyclictest22:53:300
221469940831,363cyclictest2409-21diskmemload22:02:110
221469940732,314cyclictest30301-21sort19:30:160
221469940635,87cyclictest12547-21kworker/u2:321:50:550
221469940434,356cyclictest8877-21ssh21:23:250
221469940428,87cyclictest19935-21sshd20:29:170
221469940130,371cyclictest0-21swapper19:28:570
221469940029,89cyclictest31152-21ssh00:39:400
221469939990,240cyclictest30850-21ssh22:12:090
221469939733,364cyclictest0-21swapper20:52:050
221469939653,284cyclictest2409-19diskmemload00:26:190
221469939646,337cyclictest351950irq/10-yenta21:59:210
221469939553,282cyclictest1352-21ssh22:20:140
221469939532,293cyclictest25928-21tail20:45:230
221469939453,163cyclictest20981-21munin-node20:30:460
221469939353,280cyclictest19631-21ssh23:00:320
221469939254,162cyclictest30858-21runrttasks20:57:350
221469939052,278cyclictest4305-21snmpd19:57:130
221469938932,172cyclictest5595-21gltestperf19:50:240
221469938831,357cyclictest0-21swapper20:37:150
221469938733,293cyclictest10970-21sh20:05:170
221469938633,292cyclictest12732-21awk20:10:140
221469938632,340cyclictest4210-21strings19:45:390
221469938533,291cyclictest1652-21df19:40:210
221469938529,296cyclictest14646-21awk20:15:150
221469937731,346cyclictest0-21swapper20:22:060
221469937331,342cyclictest0-21swapper20:40:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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