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2026-07-30 - 07:29
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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 Thu Jul 30, 2026 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
908299114616120,5338cyclictest28750-21kworker/0:119:12:090
90829973834059,3311cyclictest28750-21kworker/0:119:18:120
88552776183,203sleep00-21swapper19:08:470
90829948834,440cyclictest4924-21runrttasks23:42:570
90829948834,440cyclictest21879-21diskmemload23:06:400
90829948733,440cyclictest21879-21diskmemload21:29:100
90829948633,439cyclictest21879-21diskmemload21:47:360
90829948632,440cyclictest21879-21diskmemload00:33:240
90829948533,439cyclictest19659-21ssh23:28:270
90829948533,438cyclictest21879-21diskmemload21:58:330
90829948532,439cyclictest21879-21diskmemload00:22:140
90829948432,438cyclictest21879-21diskmemload00:02:530
90829947237,435cyclictest0-21swapper00:11:370
90829946633,373cyclictest21879-21diskmemload22:45:130
90829946317,385cyclictest11722-21sed23:10:380
90829946231,371cyclictest26741-21ssh22:31:190
90829946132,368cyclictest31156-21sh23:55:010
90829946031,369cyclictest4924-21runrttasks19:32:480
90829945935,247cyclictest4924-21runrttasks23:55:520
90829942053,354cyclictest351950irq/10-yenta22:41:000
90829941323,377cyclictest3464-21ssh22:51:330
90829941232,367cyclictest0-21swapper22:14:230
90829941134,377cyclictest0-21swapper22:58:300
90829941033,363cyclictest4305-21snmpd23:38:210
90829940828,366cyclictest21879-21diskmemload22:25:440
90829940736,357cyclictest15386-21ssh23:19:320
90829940633,373cyclictest0-21swapper21:44:250
90829940535,88cyclictest28141-21ssh21:22:510
90829940534,358cyclictest28750-21kworker/0:119:23:180
90829940433,358cyclictest17691-21ssh23:24:480
90829940431,359cyclictest8725-21strings00:15:530
90829940334,356cyclictest13850-21ssh00:26:570
90829940232,301cyclictest23035-21munin-node19:45:220
90829940231,359cyclictest24035-21ssh21:14:380
90829939931,368cyclictest0-21swapper20:59:130
90829939833,352cyclictest5197-21ssh00:08:260
90829939832,352cyclictest21879-21diskmemload22:04:400
90829939832,352cyclictest21568-21sshd21:07:220
90829939332,348cyclictest21879-21diskmemload22:15:310
90829939215,87cyclictest21383-21ssh22:20:310
90829939133,344cyclictest2803-21apt-get20:17:090
90829939031,359cyclictest0-21swapper23:34:320
90829938935,340cyclictest30924-21strings20:05:390
90829938834,341cyclictest7511-21strings23:00:540
90829938833,355cyclictest0-21swapper22:39:180
90829938833,341cyclictest21879-21diskmemload22:09:170
90829938833,341cyclictest21879-21diskmemload21:16:510
90829938832,342cyclictest21879-21diskmemload00:38:030
90829938633,340cyclictest16054-21strings19:25:370
90829938633,339cyclictest21879-21diskmemload21:36:470
90829938632,340cyclictest21879-21diskmemload21:32:400
90829938631,341cyclictest21879-21diskmemload23:47:250
90829938532,340cyclictest21879-21diskmemload21:52:290
90829938035,345cyclictest0-21swapper20:25:280
90829937833,345cyclictest0-21swapper20:00:410
90829937427,286cyclictest4435-19udevd20:20:510
90829937032,324cyclictest4305-21snmpd20:40:260
90829936538,88cyclictest12807-21ntp_states20:45:160
90829936535,269cyclictest9142-21df20:35:230
90829936131,270cyclictest7307-21df20:30:200
90829935032,259cyclictest12-21rcu_preempt19:55:290
90829933562,260cyclictest25332-21needreboot19:50:380
90829932653,261cyclictest3726-19ntpd20:54:010
90829932640,271cyclictest4305-21snmpd19:44:030
90829932454,256cyclictest18290-21munin-node21:00:480
90829932450,261cyclictest18995-21munin-node19:35:500
90829932236,272cyclictest32010-21munin-node20:10:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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