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2026-08-29 - 14:17
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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 Sat Aug 29, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297809999835289,4684cyclictest10758-21kworker/0:119:20:410
297809992284819,4405cyclictest10758-21kworker/0:119:28:090
297809983384559,3749cyclictest10758-21kworker/0:119:43:110
297809972123588,3573cyclictest10758-21kworker/0:119:14:130
297809967273679,3044cyclictest10758-21kworker/0:119:16:050
297809964363202,3183cyclictest10758-21kworker/0:119:39:380
293422806184,203sleep00-21swapper19:06:540
297809949138,439cyclictest12-21rcu_preempt21:58:140
297809948834,440cyclictest23037-21strings22:50:570
297809948733,440cyclictest10230-21diskmemload23:40:400
297809948633,439cyclictest10230-21diskmemload23:50:570
297809948633,439cyclictest10230-21diskmemload00:13:280
297809948534,438cyclictest26626-21munin-node23:00:340
297809948532,439cyclictest3500-21ssh00:34:270
297809948532,439cyclictest10670-21ssh22:23:130
297809948532,439cyclictest10230-21diskmemload22:07:250
297809948433,438cyclictest11539-21ssh23:38:400
297809948333,437cyclictest18612-21ssh21:27:460
297809948331,439cyclictest14402-21ssh21:18:540
297809946531,88cyclictest29923-21munin-node00:20:300
297809945635,237cyclictest10230-21diskmemload00:36:270
297809944363,367cyclictest0-21swapper23:49:420
297809944146,382cyclictest11-21ksoftirqd/019:30:330
297809944131,351cyclictest26447-21ssh22:59:540
297809944061,367cyclictest13-21rcuc/022:12:190
297809943737,376cyclictest19542-21chrt21:30:330
297809942727,386cyclictest1043-21munin-node20:45:140
297809942364,346cyclictest351950irq/10-yenta22:15:190
297809942136,372cyclictest3726-19ntpd22:30:480
297809942134,374cyclictest26483-21ssh21:45:460
297809941932,373cyclictest1929-21ssh23:16:230
297809941835,324cyclictest351950irq/10-yenta21:43:420
297809941637,365cyclictest16311-21kworker/u2:122:43:440
297809941633,370cyclictest13316-21date22:30:040
297809941537,319cyclictest456-21cut00:26:220
297809941235,318cyclictest16551-21chrt19:59:440
297809940938,358cyclictest351950irq/10-yenta22:47:280
297809940936,135cyclictest18949-21ssh23:55:350
297809940633,313cyclictest6444-21wc23:26:230
297809940535,357cyclictest12-21rcu_preempt20:27:230
297809940534,357cyclictest4305-21snmpd21:08:100
297809940533,359cyclictest13-21rcuc/023:21:360
297809940533,358cyclictest4924-21runrttasks00:05:270
297809940442,349cyclictest0-21swapper22:03:400
297809940434,195cyclictest8244-21cat23:30:510
297809940432,359cyclictest4924-21runrttasks23:13:300
297809940355,112cyclictest849-21idleruntime-cro20:45:010
297809940233,356cyclictest23357-21ssh21:39:290
297809940138,302cyclictest29433-21sh00:20:010
297809940132,356cyclictest30586-21ssh23:08:250
297809940038,349cyclictest0-21swapper21:24:450
297809939938,302cyclictest22760-21rm00:04:350
297809939515,319cyclictest10848-21ssh21:10:400
297809939433,188cyclictest31018-21runrttasks20:36:330
297809938934,341cyclictest23655-21apt-get20:17:110
297809938835,292cyclictest10230-21diskmemload21:50:230
297809938716,310cyclictest12330-21ls19:46:030
297809938634,339cyclictest16980-21ssh22:36:410
297809938633,340cyclictest28615-21strings20:30:410
297809938632,341cyclictest8021-21runrttasks21:01:560
297809938532,340cyclictest21198-21strings20:10:430
297809938532,292cyclictest17975-21fschecks_count20:01:050
297809938434,336cyclictest19722-21cstates20:06:010
297809938233,279cyclictest25285-21ls20:21:020
297809937437,337cyclictest0-21swapper19:52:570
297809937231,341cyclictest0-21swapper20:52:570
297809936334,270cyclictest5568-21strings20:55:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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