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2025-12-31 - 01:20
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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 rackbslot1.osadl.org (updated Tue Dec 30, 2025 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26500532195171,14sleep30-21swapper/307:09:213
26499632188152,26sleep00-21swapper/007:08:140
26500102184161,13sleep20-21swapper/207:08:522
26500512183159,14sleep10-21swapper/107:09:191
2650323991009,16cyclictest2873673-21ChromeDriver00:55:190
2650328999285,6cyclictest2780332-21munin-limits09:10:351
2650328999285,6cyclictest2780332-21munin-limits09:10:351
265032899874,80cyclictest2873916-21BatteryStatusNo10:45:031
265032899739,63cyclictest2945271-21kworker/u8:1+efi_rts_wq12:14:581
2650323997064,4cyclictest2987263-21/usr/share/muni12:35:120
2650328996554,9cyclictest2842204-21kworker/u8:2+flush-179:010:25:291
2650330996458,5cyclictest2966211-21cp12:15:002
2650323996460,3cyclictest2965688-21kworker/u8:3+flush-179:012:30:120
2650323996157,3cyclictest2649777-21kworker/u8:4+flush-179:007:15:000
2650323996155,5cyclictest2775920-21latency_hist09:10:010
2650333996056,3cyclictest2671664-21kworker/u8:1+flush-179:007:40:303
2650328996049,10cyclictest2814151-21kworker/u8:1+flush-179:010:15:261
265032399583,54cyclictest2945271-21kworker/u8:1+efi_rts_wq12:15:010
2650323995742,14cyclictest2791670-21kworker/u8:2+events_unbound09:25:230
2650330995649,6cyclictest2751381-21Chrome_ChildIOT08:45:142
2650328995652,3cyclictest2772598-21kworker/u8:5+flush-179:009:15:151
2650333995547,6cyclictest2944924-31munin-html11:50:363
2650328995449,4cyclictest2899054-21kworker/u8:0+flush-179:011:15:291
2650323995350,2cyclictest2644634-21kworker/u8:0+events_unbound07:50:300
2650323995349,3cyclictest2909465-21kworker/u8:2+flush-179:012:01:260
2650323995349,3cyclictest2847505-21kworker/u8:3+events_unbound10:51:430
2650323995349,3cyclictest2733658-21kworker/u8:1+events_unbound09:30:150
2650323995349,3cyclictest2673608-21kworker/u8:5+events_unbound07:30:160
2650323995349,2cyclictest2713243-21kworker/u8:4+events_unbound08:25:350
2650323995347,5cyclictest247560-21ThreadPoolForeg07:45:000
2650323995248,3cyclictest2733658-21kworker/u8:1+flush-179:008:45:370
2650323995245,5cyclictest2894579-21/usr/share/muni11:05:130
2650328995147,3cyclictest2644634-21kworker/u8:0+flush-179:007:40:001
2650328995146,4cyclictest2707684-21kworker/u8:0+flush-179:008:20:151
2650328995145,4cyclictest2791670-21kworker/u8:2+flush-179:009:25:361
2650328995047,2cyclictest2965149-21kworker/u8:2+flush-179:012:35:161
2650323995045,4cyclictest2965688-21kworker/u8:3+events_unbound12:21:180
2650323994946,2cyclictest2707685-21kworker/u8:2+flush-179:008:55:140
2650330994845,2cyclictest2899054-21kworker/u8:0+flush-179:012:25:002
2650330994845,2cyclictest2692414-21kworker/2:0+pm08:24:202
2650330994842,4cyclictest2854657-21ntpq10:25:182
2650328994845,2cyclictest2888877-21kworker/u8:4+flush-179:011:05:151
2650328994844,3cyclictest2909465-21kworker/u8:2+flush-179:011:20:301
2650328994843,4cyclictest2957402-21apt-get12:05:161
2650328994843,4cyclictest2847505-21kworker/u8:3+flush-179:010:20:101
2650328994842,4cyclictest2965149-21kworker/u8:2+events_unbound12:29:191
2650328994842,4cyclictest2965149-21kworker/u8:2+events_unbound12:29:181
2650328994837,10cyclictest2644634-21kworker/u8:0+flush-179:007:46:251
2650328994831,15cyclictest2888877-21kworker/u8:4+flush-179:011:31:301
2650323994845,2cyclictest2929808-21kworker/u8:5+flush-179:011:39:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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