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2026-08-30 - 03:34
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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 Sun Aug 30, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2985099101985288,4859cyclictest20595-21kworker/0:219:28:530
298509997995123,4666cyclictest20595-21kworker/0:219:24:160
298509992424767,4471cyclictest20595-21kworker/0:219:19:340
298509979494094,3841cyclictest20595-21kworker/0:219:14:080
298509976233829,3781cyclictest8718-21kworker/0:019:50:230
298509972653972,3283cyclictest20595-21kworker/0:219:30:280
298509970503815,3193cyclictest8718-21kworker/0:019:36:570
298509966253334,3240cyclictest8718-21kworker/0:020:03:150
298509965713588,2969cyclictest8718-21kworker/0:019:47:420
298509961293298,2817cyclictest23889-21kworker/0:120:26:400
298509960093301,2657cyclictest23889-21kworker/0:120:24:240
295962775183,203sleep00-21swapper19:08:240
298509950464,254cyclictest10328-21diskmemload23:22:310
298509949354,255cyclictest2545-21ssh00:35:340
298509947557,242cyclictest10328-21diskmemload22:47:350
298509947338,435cyclictest0-21swapper21:42:430
298509946737,256cyclictest11-21ksoftirqd/023:42:120
298509946052,349cyclictest25751-21kworker/u2:100:24:170
29850994513,435cyclictest20754-21ssh21:32:390
29850994501,436cyclictest12259-21ssh22:27:010
29850994483,430cyclictest10328-21diskmemload21:20:500
29850994462,430cyclictest13477-21grep22:30:430
29850994461,384cyclictest4924-21runrttasks21:55:250
29850994450,384cyclictest24806-21timerwakeupswit22:56:470
29850994433,380cyclictest27340-21runrttasks23:03:140
29850994431,382cyclictest4924-21runrttasks20:30:190
29850994431,382cyclictest24485-21cut00:10:480
29850994403,422cyclictest23760-21apt-get20:17:020
298509943965,361cyclictest10328-21diskmemload22:20:120
298509943965,361cyclictest10328-21diskmemload21:14:450
29850994384,374cyclictest0-21swapper20:39:550
29850994372,375cyclictest31302-21cstates23:11:470
29850994364,373cyclictest344450irq/10-eth022:19:360
29850994332,370cyclictest4924-21runrttasks21:51:160
298509943236,96cyclictest20342-21chrt00:01:080
29850994321,370cyclictest4924-21runrttasks20:10:140
29850994313,368cyclictest4120-21syslogd23:45:070
298509942954,361cyclictest16692-21ssh23:52:520
298509942864,360cyclictest13-21rcuc/023:32:200
298509942772,342cyclictest4924-21runrttasks22:01:590
298509942767,301cyclictest5994-21ssh22:13:230
298509942767,301cyclictest27756-21ssh00:18:590
29850994271,249cyclictest32087-21awk20:40:260
298509942554,357cyclictest10224-21ssh23:38:130
298509942163,177cyclictest344450irq/10-eth000:33:470
298509941858,188cyclictest23183-21ssh21:38:570
298509941543,358cyclictest17252-21ssh23:55:130
298509941455,178cyclictest10328-21diskmemload00:07:200
298509941146,352cyclictest11-21ksoftirqd/023:18:190
298509940754,292cyclictest5725-21ssh23:27:290
298509939559,0cyclictest12762-21df21:15:230
298509939535,360cyclictest0-21swapper19:55:330
298509939331,362cyclictest0-21swapper22:07:240
298509939237,355cyclictest0-21swapper00:28:110
298509939031,359cyclictest0-21swapper21:28:360
298509938774,252cyclictest7866-21perl21:01:030
298509938353,317cyclictest897-21jbd2/sda1-800:41:220
29850993824,365cyclictest0-21swapper22:54:090
298509937631,345cyclictest0-21swapper21:46:570
29850993754,357cyclictest4924-21runrttasks23:06:530
29850993743,312cyclictest0-21swapper22:38:390
298509937231,341cyclictest0-21swapper19:40:140
29850993634,346cyclictest0-21swapper20:07:390
29850993613,345cyclictest0-21swapper22:42:250
29850993572,355cyclictest0-21swapper20:58:090
298509934753,294cyclictest0-21swapper20:51:570
29850993463,343cyclictest0-21swapper21:08:490
29850993462,344cyclictest0-21swapper20:46:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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