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2026-05-15 - 21:43
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6.osadl.org (updated Fri May 15, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2511721330,6chrt25116-21sed12:20:371
1057621020,5chrt10579-21ls11:40:350
10694999166,12cyclictest14-21ksoftirqd/008:55:120
10694999065,13cyclictest14-21ksoftirqd/012:25:100
10694998860,16cyclictest14-21ksoftirqd/007:20:150
10694998763,12cyclictest14-21ksoftirqd/007:40:110
10694998757,19cyclictest0-21swapper/011:30:130
10694998654,19cyclictest14-21ksoftirqd/007:50:140
10694998454,17cyclictest0-21swapper/009:25:100
10694998354,20cyclictest14-21ksoftirqd/007:45:130
10694998254,17cyclictest14-21ksoftirqd/009:05:140
10694998252,19cyclictest14-21ksoftirqd/007:30:160
10694998153,18cyclictest14-21ksoftirqd/008:15:130
10694998150,17cyclictest0-21swapper/008:10:110
10694998150,17cyclictest0-21swapper/008:10:110
10694998052,18cyclictest14-21ksoftirqd/008:00:130
10694998049,19cyclictest14-21ksoftirqd/011:10:240
226462790,7sleep1251rcuc/107:40:271
10694997953,16cyclictest14-21ksoftirqd/009:20:130
10694997947,21cyclictest14-21ksoftirqd/007:25:110
10694997850,18cyclictest14-21ksoftirqd/011:20:130
10694997849,20cyclictest14-21ksoftirqd/010:15:130
10694997849,17cyclictest14-21ksoftirqd/010:20:130
10694997749,19cyclictest14-21ksoftirqd/012:30:130
10694997619,51cyclictest0-21swapper/009:40:220
10694997616,52cyclictest0-21swapper/012:20:140
151452750,9chrt0-21swapper/107:20:221
10694997549,16cyclictest14-21ksoftirqd/010:35:160
10694997547,16cyclictest14-21ksoftirqd/010:45:120
10694997544,17cyclictest0-21swapper/010:10:150
1024427516,50sleep00-21swapper/007:07:110
10694997444,20cyclictest14-21ksoftirqd/008:25:120
10694997444,17cyclictest0-21swapper/008:40:220
10699997327,23cyclictest26-21ksoftirqd/109:40:051
10694997343,17cyclictest0-21swapper/012:15:140
89542727,51sleep18945-21/usr/sbin/munin07:05:141
10694997242,17cyclictest0-21swapper/009:50:140
10694997041,17cyclictest0-21swapper/009:00:140
10694997041,16cyclictest0-21swapper/011:25:140
10694997040,17cyclictest0-21swapper/007:10:130
26022690,7chrt0-21swapper/111:20:011
10694996941,17cyclictest0-21swapper/010:25:130
10699996812,17cyclictest20247-21php7.312:09:011
10699996812,17cyclictest20247-21php7.312:09:011
10694996843,15cyclictest0-21swapper/010:05:110
10694996841,15cyclictest0-21swapper/009:15:140
10694996837,17cyclictest0-21swapper/010:40:160
10694996835,22cyclictest14-21ksoftirqd/010:55:110
10699996740,9cyclictest26-21ksoftirqd/112:19:441
10694996739,16cyclictest0-21swapper/011:35:110
10694996738,16cyclictest0-21swapper/009:30:110
10694996736,21cyclictest14-21ksoftirqd/010:00:120
10694996736,21cyclictest14-21ksoftirqd/010:00:120
10694996715,44cyclictest0-21swapper/010:50:130
10699996638,10cyclictest26-21ksoftirqd/108:23:061
10699996628,25cyclictest26-21ksoftirqd/107:35:561
10694996638,16cyclictest0-21swapper/008:35:110
10694996619,38cyclictest0-21swapper/008:30:110
10699996544,9cyclictest503-21snmpd10:23:331
10699996536,10cyclictest503-21snmpd09:20:341
10694996537,16cyclictest0-21swapper/008:05:140
10694996534,19cyclictest14-21ksoftirqd/012:05:150
10694996534,19cyclictest14-21ksoftirqd/012:05:150
10694996534,19cyclictest0-21swapper/012:35:110
241972640,4sleep1231irq_work/110:50:011
10699996411,41cyclictest26-21ksoftirqd/111:30:231
10694996436,17cyclictest0-21swapper/010:30:110
10694996436,17cyclictest0-21swapper/009:45:130
10694996419,35cyclictest20138-21aten2.4-expect07:35:170
10699996340,8cyclictest26-21ksoftirqd/112:00:181
10699996324,24cyclictest26-21ksoftirqd/111:25:001
10699996318,20cyclictest26-21ksoftirqd/110:05:151
10694996337,16cyclictest0-21swapper/009:55:140
10694996328,26cyclictest14-21ksoftirqd/011:55:140
10699996227,18cyclictest26-21ksoftirqd/111:55:051
10699996223,20cyclictest26-21ksoftirqd/107:50:151
10699996218,13cyclictest26-21ksoftirqd/111:00:011
1069499626,23cyclictest17762-21ntp_states12:00:310
1069499625,28cyclictest20792-21/usr/sbin/munin12:10:180
10694996235,22cyclictest14-21ksoftirqd/007:55:120
10694996218,34cyclictest13066-21aten2.4-expect07:15:170
10694996214,38cyclictest0-21swapper/011:50:140
10694996210,43cyclictest21213-21diskmemload09:10:110
1069999612,40cyclictest18895-21grep09:00:361
10699996120,19cyclictest26-21ksoftirqd/107:26:301
10699996119,19cyclictest26-21ksoftirqd/108:41:541
10694996134,16cyclictest0-21swapper/011:00:110
10699996048,8cyclictest26-21ksoftirqd/111:05:281
1069999603,14cyclictest26-21ksoftirqd/109:00:001
10699996024,23cyclictest26-21ksoftirqd/112:10:121
10699996024,12cyclictest26-21ksoftirqd/107:31:091
1069999602,17cyclictest6858-21idleruntime-cro08:30:001
10699996019,21cyclictest26-21ksoftirqd/109:15:321
10699996015,38cyclictest26-21ksoftirqd/111:50:001
1069499606,23cyclictest14696-21diskstats08:50:210
10694996032,16cyclictest0-21swapper/009:35:140
10694996031,20cyclictest0-21swapper/008:45:140
10694996029,22cyclictest0-21swapper/011:15:140
10694996016,19cyclictest243-21systemd-journal11:09:040
88422590,6chrt0-21swapper/111:35:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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