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2026-06-17 - 07:43
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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 Wed Jun 17, 2026 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22039954623118,2341cyclictest26564-21kworker/0:019:12:060
19562807183,204sleep00-21swapper19:08:450
22039949761,380cyclictest4253-21lldpd23:14:200
22039948835,439cyclictest15052-21diskmemload23:01:230
22039948834,440cyclictest15052-21diskmemload23:56:540
22039948632,439cyclictest15052-21diskmemload23:22:120
22039948533,438cyclictest15052-21diskmemload21:39:390
22039948532,439cyclictest2581-21apt-get00:17:080
22039948532,439cyclictest15052-21diskmemload22:56:440
22039948532,439cyclictest15052-21diskmemload22:38:120
22039948532,439cyclictest15052-21diskmemload21:49:100
22039948432,438cyclictest15052-21diskmemload00:27:270
22039947434,370cyclictest18044-21ssh22:27:110
22039946934,374cyclictest3925-21ssh23:08:340
22039946633,252cyclictest30250-21ssh00:06:270
22039946534,369cyclictest9477-21kworker/u2:223:30:520
22039946531,373cyclictest944-21strings20:30:390
22039946133,414cyclictest13-21rcuc/000:01:200
22039946023,374cyclictest20870-21perl21:21:210
22039943333,341cyclictest19628-21kworker/u2:300:36:440
22039942951,365cyclictest8333-21kworker/0:223:36:020
22039942338,88cyclictest11-21ksoftirqd/021:42:390
22039941742,362cyclictest4741-21runrttasks21:58:040
22039941434,365cyclictest15052-21diskmemload23:29:180
22039941433,367cyclictest23937-21ssh21:29:390
22039941336,363cyclictest12-21rcu_preempt22:20:590
22039940932,362cyclictest15052-21diskmemload21:53:320
22039940719,373cyclictest30089-21expr20:20:580
22039940640,307cyclictest11285-21ssh22:12:050
22039940635,357cyclictest15052-21diskmemload22:04:070
22039940632,360cyclictest20765-21ssh23:45:440
22039940533,357cyclictest9965-21ssh00:34:400
22039940526,365cyclictest17209-21kworker/u2:123:43:170
22039940435,369cyclictest0-21swapper22:19:480
22039940433,357cyclictest3625-21kworker/u2:323:17:410
22039940331,358cyclictest27062-21ssh22:47:200
22039940331,358cyclictest16031-21ssh21:10:590
22039940227,304cyclictest4272-21snmpd19:26:440
22039940135,351cyclictest154722chrt19:42:180
22039939936,363cyclictest0-21swapper20:39:540
22039939920,364cyclictest7642-21ssh22:05:200
22039939635,347cyclictest15052-21diskmemload21:18:470
22039939631,351cyclictest6251-21chrt19:18:010
22039939623,88cyclictest12-21rcu_preempt22:50:460
22039939623,87cyclictest15052-21diskmemload23:51:560
22039939533,349cyclictest13-21rcuc/021:31:570
22039939532,301cyclictest0-21swapper20:04:210
22039939231,347cyclictest15052-21diskmemload00:23:210
22039939018,358cyclictest11-21ksoftirqd/022:30:590
22039938932,357cyclictest0-21swapper19:30:080
22039938833,341cyclictest10369-21strings20:55:390
22039938732,341cyclictest15052-21diskmemload00:11:490
22039938632,340cyclictest15052-21diskmemload22:44:020
22039938521,88cyclictest20244-21sshd19:55:330
22039938332,338cyclictest15052-21diskmemload21:10:010
22039938331,337cyclictest7802-21mailstats20:50:150
22039937916,302cyclictest4272-21snmpd21:00:220
22039937731,346cyclictest0-21swapper20:46:500
22039937525,288cyclictest31008-21grep20:25:210
22039937426,164cyclictest129462sleep019:35:370
22039936734,89cyclictest25068-21sh20:10:000
22039936235,89cyclictest4094-21ntp_states20:40:170
22039936129,270cyclictest7555-21python19:20:450
22039935727,90cyclictest27065-21mailstats20:15:120
22039935335,259cyclictest4894-21runrttasks19:45:250
22039933831,307cyclictest0-21swapper20:13:150
22039931754,248cyclictest17761-21munin-node19:50:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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