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2026-09-05 - 06:48
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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 100 highest latencies:
System rack6slot5.osadl.org (updated Sat Sep 05, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283279984154209,4156cyclictest10057-21kworker/0:119:14:060
283279982704353,3903cyclictest10057-21kworker/0:119:19:220
283279950762581,2481cyclictest10057-21kworker/0:119:22:070
279382778183,204sleep00-21swapper19:07:250
283279946315,434cyclictest30378-21munin-node20:40:260
28327994618,440cyclictest22480-21chrt00:09:300
28327994511,436cyclictest1982-21ssh22:07:400
283279944916,372cyclictest25509-21python23:01:140
28327994483,431cyclictest8684-21diskmemload22:42:060
283279944772,360cyclictest24802-21ssh21:45:510
283279944550,87cyclictest8684-21diskmemload21:25:290
283279944310,372cyclictest27700-19udisks-probe-at23:06:160
283279944067,360cyclictest8684-21diskmemload00:10:330
283279943660,363cyclictest5924-21munin-node19:35:350
28327994333,369cyclictest8684-21diskmemload21:50:520
283279942947,213cyclictest0-21swapper23:12:450
283279942751,95cyclictest15195-21ssh21:24:520
283279942747,367cyclictest0-21swapper21:42:110
283279942747,366cyclictest0-21swapper00:04:360
283279942655,357cyclictest28245-21ssh00:21:300
283279942653,358cyclictest525-21ssh00:32:340
283279941436,365cyclictest8684-21diskmemload22:17:060
283279940733,361cyclictest11531-21ssh22:30:230
283279940444,178cyclictest23432-21df22:56:240
283279940434,357cyclictest21584-21ssh21:39:040
283279940335,354cyclictest26959-21sendmail-msp00:20:030
283279940234,368cyclictest0-21swapper19:41:330
283279940146,355cyclictest0-21swapper20:31:120
283279939938,357cyclictest11-21ksoftirqd/021:12:110
283279939936,303cyclictest3095-21ssh00:39:300
283279939736,302cyclictest4765-21ssh23:28:130
283279939732,351cyclictest21222-21hddtemp_smartct22:51:170
283279939636,360cyclictest0-21swapper22:14:300
283279939636,360cyclictest0-21swapper20:46:060
283279939635,361cyclictest0-21swapper22:24:040
283279939621,361cyclictest15461-21ssh22:39:100
283279939546,349cyclictest0-21swapper19:47:520
283279939535,360cyclictest0-21swapper23:47:370
283279939521,360cyclictest18884-21chrt20:10:050
283279939437,357cyclictest0-21swapper19:59:410
283279939231,361cyclictest0-21swapper21:34:310
283279939146,345cyclictest0-21swapper19:52:160
283279939030,360cyclictest0-21swapper21:04:570
283279938935,354cyclictest0-21swapper23:22:290
283279938714,359cyclictest18076-21ssh23:59:180
283279938633,340cyclictest4924-21runrttasks20:21:210
283279938632,340cyclictest4924-21runrttasks22:28:090
283279938617,355cyclictest10308-21munin-node23:40:460
283279938534,337cyclictest19178-21proc_pri22:46:340
283279938025,355cyclictest0-21swapper19:34:500
283279937917,348cyclictest322-21ls22:05:040
283279937615,347cyclictest4305-21snmpd20:18:470
283279937435,153cyclictest28195-21seq20:35:140
283279937421,340cyclictest25097-21ls20:25:360
283279937333,280cyclictest4924-21runrttasks19:29:510
28327993732,371cyclictest0-21swapper20:53:510
283279937311,349cyclictest7667-21cpuspeed_turbos23:35:260
28327993722,370cyclictest0-21swapper20:09:180
28327993713,368cyclictest0-21swapper23:52:290
283279937110,302cyclictest32608-21ssh23:17:410
283279936332,331cyclictest29711-21ssh21:56:340
283279935986,260cyclictest4285-21lldpd20:03:380
283279935784,260cyclictest4285-21lldpd21:19:290
283279935482,260cyclictest4285-21lldpd23:32:190
283279935382,259cyclictest4285-21lldpd20:59:110
283279934875,260cyclictest4285-21lldpd00:27:370
283279933568,96cyclictest8108-21cstates21:06:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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