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2026-08-09 - 20:52
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot6.osadl.org (updated Sun Aug 09, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911220,9ptp4l966-21kworker/3:209:18:153
35082730,4sleep22118-21kworker/2:011:18:072
11434997158,8cyclictest33-21ksoftirqd/212:58:012
274402660,4sleep0101ktimersoftd/011:43:580
106891660,1ptp4l401ktimersoftd/312:00:013
102392640,3sleep21143499cyclictest12:33:022
106891570,1ptp4l401ktimersoftd/311:57:033
11434995643,6cyclictest33-21ksoftirqd/212:08:002
11434995643,6cyclictest33-21ksoftirqd/212:08:002
143782550,2sleep20-21swapper/213:43:042
11434995542,6cyclictest33-21ksoftirqd/213:13:012
11434995542,6cyclictest33-21ksoftirqd/211:13:002
11434995441,6cyclictest33-21ksoftirqd/211:54:142
112292544,39sleep00-21swapper/009:21:350
111282535,36sleep10-21swapper/109:20:181
200102520,1sleep10-21swapper/112:09:051
200102520,1sleep10-21swapper/112:09:051
11434995239,7cyclictest33-21ksoftirqd/212:43:022
11434995238,6cyclictest33-21ksoftirqd/211:02:592
1142299525,11cyclictest31724-21cut14:33:060
1142299503,12cyclictest20243-21apt-get11:38:000
1142299498,10cyclictest14835-21irqrtprio13:43:090
1142299497,6cyclictest0-21swapper/012:48:030
1142299484,15cyclictest23550-21latency_hist13:52:510
1142299474,11cyclictest1-21systemd13:03:130
1142299474,10cyclictest3769-21/usr/sbin/munin14:38:060
1142299473,17cyclictest1817-21unixbench-2d12:23:170
1142299472,12cyclictest23730-21ssh12:13:110
1142299472,12cyclictest23730-21ssh12:13:110
1142299471,11cyclictest0-21swapper/011:48:070
1142299466,5cyclictest0-21swapper/010:27:590
1142299463,10cyclictest22235-21latency_hist12:12:480
1142299463,10cyclictest22235-21latency_hist12:12:480
1142299461,12cyclictest0-21swapper/009:33:030
106891460,14ptp4l966-21kworker/3:210:28:253
1142299451,14cyclictest13516-21ssh14:47:540
1142299450,17cyclictest9646-21irqrtprio10:23:050
1142299450,17cyclictest9646-21irqrtprio10:23:050
1142299450,16cyclictest20324-21ssh14:21:340
11434994431,6cyclictest33-21ksoftirqd/213:03:022
1142299443,17cyclictest2782-21if_enp1s012:58:070
1142299441,9cyclictest23343-21/usr/sbin/munin13:18:130
1142299441,18cyclictest2710-21apt-get11:18:000
1142299441,13cyclictest22948-21ssh12:45:270
1142299440,9cyclictest2888-21apt-get11:53:030
106891440,1ptp4l401ktimersoftd/314:16:343
1142299434,6cyclictest0-21swapper/013:53:350
1142299430,9cyclictest27372-21irqstats14:28:110
1142299430,8cyclictest15320-21apt-get11:33:010
1142299430,10cyclictest12841-21/usr/sbin/munin12:03:020
1142299422,17cyclictest6371-21/usr/sbin/munin10:18:150
1142299421,9cyclictest1603-21apt14:03:030
1142299421,9cyclictest1603-21apt14:03:030
1142299420,8cyclictest9968-21apt-get12:33:010
1142299420,8cyclictest6483-21apt-get14:08:010
1142299420,12cyclictest4779-21diskmemload14:47:380
106891420,0ptp4l401ktimersoftd/312:41:443
11434994135,3cyclictest33-21ksoftirqd/212:23:002
1142299411,7cyclictest10778-21ssh11:28:050
1142299410,8cyclictest7845-21apt-get11:58:020
1142299410,8cyclictest31752-21apt-get10:02:570
1142299410,8cyclictest30162-21apt-get11:07:590
1142299410,17cyclictest4779-21diskmemload13:14:050
1142299410,11cyclictest4779-21diskmemload13:39:040
106891410,1ptp4l401ktimersoftd/310:08:023
11434994025,12cyclictest33-21ksoftirqd/212:13:082
11434994025,12cyclictest33-21ksoftirqd/212:13:082
11434994018,11cyclictest33-21ksoftirqd/212:18:092
1142299401,8cyclictest31345-21sed12:53:180
1142299401,8cyclictest30390-21ssh13:26:110
1142299401,8cyclictest27500-21munin-run11:02:460
1142299401,16cyclictest16596-21/usr/sbin/munin12:38:160
1142299400,8cyclictest6601-21ssh12:28:170
1142299400,8cyclictest29388-21apt-get09:57:580
1142299400,8cyclictest18314-21apt-get10:42:590
106891400,1ptp4l401ktimersoftd/312:43:553
11434993927,3cyclictest33-21ksoftirqd/214:22:512
11434993926,11cyclictest33-21ksoftirqd/213:53:092
1142299392,9cyclictest16925-21memory10:38:080
1142299390,8cyclictest32093-21ssh14:00:150
1142299390,8cyclictest27022-21apt-get09:52:580
106891390,1ptp4l401ktimersoftd/313:12:203
106891390,1ptp4l401ktimersoftd/313:01:443
106891390,1ptp4l401ktimersoftd/309:27:473
80812380,1sleep30-21swapper/311:25:023
11434993833,3cyclictest33-21ksoftirqd/213:32:492
1143499381,8cyclictest33-21ksoftirqd/213:08:062
1143499380,3cyclictest121rcu_preempt14:26:112
1142299380,9cyclictest6684-21swap11:23:150
1142299380,9cyclictest20104-21interrupts09:38:010
1142299380,7cyclictest24504-21ssh10:53:150
1142299380,16cyclictest4779-21diskmemload14:24:430
1142299380,14cyclictest15732-21ssh13:11:250
106891380,1ptp4l401ktimersoftd/313:36:293
106891380,1ptp4l401ktimersoftd/312:53:523
106891380,1ptp4l401ktimersoftd/311:44:523
106891380,1ptp4l401ktimersoftd/311:29:173
106891380,1ptp4l401ktimersoftd/310:18:143
106891380,1ptp4l401ktimersoftd/310:15:103
106891380,0ptp4l401ktimersoftd/314:38:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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