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2026-04-04 - 18:32
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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 50 highest latencies:
System rack3slot0.osadl.org (updated Sat Apr 04, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12655999744,52cyclictest27515-21systemd-cgroups11:05:362
324502790,2sleep31265699cyclictest09:22:213
12654996766,1cyclictest15-21kswork11:05:361
25252660,0sleep00-21swapper/009:16:580
12653996158,1cyclictest9-21ksoftirqd/011:05:360
92922590,0sleep70-21swapper/712:20:377
281642550,1sleep428162-21bash09:22:064
212452530,0sleep40-21swapper/411:20:034
193722510,0sleep60-21swapper/610:42:496
12262510,0sleep50-21swapper/510:01:165
12262510,0sleep50-21swapper/510:01:165
79482490,0sleep40-21swapper/411:48:554
12659994948,1cyclictest5952-21kworker/6:511:05:366
1225924925,9sleep50-21swapper/507:02:515
1222624826,8sleep10-21swapper/107:02:231
168152470,0sleep30-21swapper/311:49:263
104392470,0sleep50-21swapper/511:02:425
145662460,1sleep114561-21systemd10:05:441
145662460,1sleep114561-21systemd10:05:441
111162460,0sleep30-21swapper/310:51:353
92092450,0sleep00-21swapper/009:10:010
27272450,0sleep70-21swapper/711:00:287
92932430,0sleep30-21swapper/310:10:593
199432430,0sleep00-21swapper/011:12:310
192102430,0sleep60-21swapper/611:58:506
1230124331,8sleep00-21swapper/007:03:260
106852430,0sleep70-21swapper/709:07:517
75282420,0sleep70-21swapper/712:00:037
59602420,0sleep50-21swapper/510:55:065
269792420,0sleep50-21swapper/511:25:575
215462420,0sleep621520-21sshd11:16:216
103792420,0sleep50-21swapper/511:26:455
323112410,2sleep71266899cyclictest09:37:077
30172410,0sleep70-21swapper/710:32:417
229362410,0sleep20-21swapper/210:02:252
229362410,0sleep20-21swapper/210:02:252
200472410,0sleep30-21swapper/310:35:333
94122400,0sleep20-21swapper/209:32:052
87652400,0sleep50-21swapper/511:39:435
84142400,0sleep40-21swapper/411:54:314
84142400,0sleep40-21swapper/411:54:314
5792400,0sleep40-21swapper/409:39:044
315172400,0sleep50-21swapper/511:48:245
291652400,0sleep30-21swapper/310:25:003
267312400,1sleep326732-21grepconf.sh11:24:033
235312400,0sleep70-21swapper/709:55:097
1233624028,9sleep60-21swapper/607:03:566
1220524028,9sleep70-21swapper/707:02:057
1003724028,9sleep30-21swapper/307:01:213
28332390,0sleep30-21swapper/311:18:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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