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2026-07-20 - 03:57
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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 792 highest latencies:
System rack6slot5.osadl.org (updated Mon Jul 20, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
211299106535627,5012cyclictest2984-21kworker/0:219:18:470
21129999255296,4619cyclictest2984-21kworker/0:219:25:400
21129994074743,4650cyclictest28616-21kworker/0:000:19:010
21129991744630,4533cyclictest2984-21kworker/0:219:20:140
21129986684368,4286cyclictest2984-21kworker/0:219:32:060
21129979674018,3936cyclictest18236-21kworker/0:100:04:290
21129975243761,3749cyclictest2984-21kworker/0:219:43:540
21129974234049,3360cyclictest25539-21kworker/0:223:06:060
21129973683908,3445cyclictest2984-21kworker/0:219:47:330
21129967203562,3108cyclictest2984-21kworker/0:219:14:180
21129965923294,3285cyclictest6677-21kworker/0:200:33:160
21129965383600,2925cyclictest25539-21kworker/0:223:04:130
21129965213381,3117cyclictest6047-21kworker/0:222:35:480
21129963413257,2961cyclictest25539-21kworker/0:223:27:540
21129962413342,2885cyclictest18236-21kworker/0:123:47:140
21129962323218,2963cyclictest6047-21kworker/0:222:33:470
21129959333175,2707cyclictest6677-21kworker/0:200:29:520
16812812185,204sleep00-21swapper19:07:060
21129949352,381cyclictest4924-21runrttasks19:37:290
21129949054,251cyclictest25366-21fschecks_count22:46:450
21129948752,88cyclictest14996-21diskmemload22:41:140
21129948734,439cyclictest8774-21munin-node22:11:420
2112994711,470cyclictest0-21swapper20:04:120
21129947034,423cyclictest18015-21kworker/0:120:24:400
21129946422,382cyclictest14996-21diskmemload21:26:140
21129945535,359cyclictest14996-21diskmemload21:46:050
2112994524,425cyclictest14996-21diskmemload23:57:180
21129945221,371cyclictest11-21ksoftirqd/021:43:510
2112994522,437cyclictest14996-21diskmemload00:05:120
21129944279,187cyclictest0-21swapper22:09:330
21129943852,213cyclictest0-21swapper23:36:550
21129943756,87cyclictest15347-21munin-node21:10:290
21129943455,205cyclictest0-21swapper22:29:030
2112994332,372cyclictest0-21swapper20:33:140
21129943157,360cyclictest5980-21ssh22:02:220
21129943058,189cyclictest20373-21awk21:21:140
21129942757,347cyclictest14772-21runrttasks22:23:110
21129942748,367cyclictest0-21swapper20:48:390
2112994251,249cyclictest13583-21ssh23:32:150
2112994251,249cyclictest10326-21strings00:36:000
21129942352,358cyclictest0-21swapper20:42:400
21129941954,351cyclictest4305-21snmpd21:34:360
21129941856,348cyclictest21305-21ssh23:50:210
21129941832,375cyclictest26004-21kernelversion20:10:460
21129941341,88cyclictest18122-21strings21:16:020
21129940637,369cyclictest0-21swapper23:21:570
21129940437,367cyclictest0-21swapper20:38:300
21129940142,300cyclictest2004-21ssh21:54:560
21129940031,369cyclictest0-21swapper19:50:230
21129939931,368cyclictest0-21swapper20:50:540
21129939839,300cyclictest6730-21ssh23:17:520
21129939837,361cyclictest0-21swapper20:55:210
21129939633,349cyclictest4924-21runrttasks20:16:140
21129939532,363cyclictest0-21swapper21:09:440
21129939231,361cyclictest0-21swapper00:22:380
21129939231,348cyclictest18015-21kworker/0:120:08:170
21129939135,342cyclictest4924-21runrttasks21:01:390
21129938938,338cyclictest344450irq/10-eth021:37:570
21129938720,352cyclictest11484-21sed22:15:460
21129938218,341cyclictest30817-21df_abs00:10:430
21129937536,280cyclictest25539-21kworker/0:222:51:090
2112993744,370cyclictest0-21swapper20:27:510
21129937331,342cyclictest4673-21ssh23:13:230
2112993732,371cyclictest0-21swapper23:41:490
2112993732,371cyclictest0-21swapper19:57:020
21129937231,340cyclictest30275-21ssh22:59:450
21129935985,260cyclictest4285-21lldpd21:57:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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