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2026-08-09 - 04:09
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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 Sun Aug 09, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
86219993244993,4329cyclictest30925-21kworker/0:019:12:390
86219976823817,3815cyclictest30925-21kworker/0:019:34:520
86219976553809,3804cyclictest30925-21kworker/0:019:18:520
86219969083672,3222cyclictest30925-21kworker/0:019:38:390
86219960943455,2626cyclictest30925-21kworker/0:019:24:380
86219946452455,2187cyclictest30925-21kworker/0:019:26:140
75922810185,204sleep00-21swapper19:05:200
86219951771,88cyclictest12609-21expr23:20:320
86219951662,394cyclictest13-21rcuc/019:55:020
86219951021,428cyclictest18824-21ps21:01:090
86219950523,421cyclictest1382-21tr00:10:130
86219950219,422cyclictest21248-21diskmemload23:51:540
86219949337,443cyclictest351950irq/10-yenta22:11:150
86219948936,439cyclictest7671-21ssh23:09:070
86219948919,399cyclictest4126-21ssh21:45:130
86219948735,439cyclictest11596-21ssh00:32:240
86219948721,405cyclictest2121-21ls20:16:120
86219948339,431cyclictest344450irq/10-eth023:00:210
86219947621,394cyclictest15241-21kworker/u2:223:26:370
86219947344,253cyclictest13-21rcuc/023:19:100
86219947121,389cyclictest11-21ksoftirqd/023:40:200
86219947022,388cyclictest23321-21kworker/u2:321:29:440
86219946444,350cyclictest21248-21diskmemload23:34:560
86219946339,249cyclictest292132chrt23:59:130
86219945722,420cyclictest13280-21wc00:36:220
86219945568,374cyclictest13-21rcuc/000:06:240
86219945367,211cyclictest10093-21ssh21:58:110
86219945121,416cyclictest2447-21ssh22:56:280
86219945021,405cyclictest27697-21seq20:00:010
8621994501,435cyclictest22933-21ssh21:12:340
86219944985,351cyclictest16198-21ssh00:43:520
86219944664,254cyclictest21248-21diskmemload21:53:470
86219944364,366cyclictest24697-21fschecks_time21:16:350
86219944155,373cyclictest13-21rcuc/000:00:300
86219943778,346cyclictest351950irq/10-yenta22:30:030
86219943663,360cyclictest18511-21apt-get22:17:080
86219943657,366cyclictest13-21rcuc/020:11:120
86219943622,391cyclictest6170-21df_inode00:20:370
8621994353,372cyclictest4669-21munin-node00:16:220
86219943470,304cyclictest13-21rcuc/021:30:130
8621994341,419cyclictest787-21ssh22:52:330
86219943372,301cyclictest32137-21ssh21:35:130
86219943220,398cyclictest4305-21snmpd20:48:470
86219943220,398cyclictest14452-21ssh22:08:250
86219942952,318cyclictest4924-21runrttasks22:23:220
86219942868,301cyclictest9550-21ssh00:27:580
86219942764,303cyclictest4305-21snmpd22:35:430
86219942553,87cyclictest2879-21python21:41:200
8621994201,359cyclictest0-21swapper20:03:310
86219941754,304cyclictest27822-21munin-node22:41:490
86219941747,357cyclictest0-21swapper22:48:070
86219941746,88cyclictest7372-21strings20:30:450
86219941639,364cyclictest21248-21diskmemload23:12:330
86219941571,283cyclictest21248-21diskmemload22:03:020
86219941534,319cyclictest30145-21sed20:05:310
86219941322,330cyclictest24015-21cron19:50:010
86219941246,353cyclictest21248-21diskmemload23:39:440
86219941033,318cyclictest3747-21grep20:20:510
86219939334,0cyclictest11220-21cat20:40:510
86219939136,341cyclictest5527-21strings20:25:460
86219939131,302cyclictest21468-21kworker/u2:323:47:020
86219938835,340cyclictest25447-21ssh22:34:370
86219938635,337cyclictest11-21ksoftirqd/021:24:480
86219938031,289cyclictest4204-21gpm20:39:290
86219937538,279cyclictest4924-21runrttasks20:57:180
86219936022,322cyclictest21569-21perl19:41:040
86219935694,89cyclictest13-21rcuc/020:53:390
86219935692,250cyclictest13-21rcuc/021:05:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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