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2025-12-13 - 10:39
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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 Sat Dec 13, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911550,4ptp4l401ktimersoftd/319:10:023
263592790,5sleep1414699cyclictest21:00:441
33262734,10sleep00-21swapper/019:05:360
55622640,2sleep30-21swapper/322:35:323
39362594,10sleep20-21swapper/219:08:572
252002590,5sleep125205-21irqrtprio23:15:331
4161995341,5cyclictest41-21ksoftirqd/321:15:283
3822530,2sleep1241ktimersoftd/121:15:341
4161995037,6cyclictest41-21ksoftirqd/323:20:343
4161994937,7cyclictest41-21ksoftirqd/319:20:263
4161994937,6cyclictest41-21ksoftirqd/322:40:253
106891460,1ptp4l401ktimersoftd/319:53:093
4161994431,6cyclictest41-21ksoftirqd/323:55:283
4161994230,6cyclictest41-21ksoftirqd/321:50:293
106891410,0ptp4l401ktimersoftd/323:15:463
416199392,34cyclictest30755-21cat00:40:203
4152993822,13cyclictest33-21ksoftirqd/200:24:392
4152993813,22cyclictest16438-21sed22:56:122
106891380,2ptp4l9964-21kworker/3:120:30:153
106891380,1ptp4l401ktimersoftd/322:45:393
106891380,15ptp4l401ktimersoftd/322:30:353
4161993730,4cyclictest41-21ksoftirqd/319:45:263
4161993726,5cyclictest41-21ksoftirqd/323:10:273
415299371,6cyclictest27391-21apt-get21:05:292
106891370,1ptp4l401ktimersoftd/322:56:293
106891370,1ptp4l401ktimersoftd/322:00:533
106891370,0ptp4l401ktimersoftd/322:08:003
106891370,0ptp4l401ktimersoftd/320:53:293
4152993612,20cyclictest8887-21latency_hist21:35:162
106891360,0ptp4l401ktimersoftd/320:15:373
4161993530,3cyclictest41-21ksoftirqd/322:50:323
4161993529,4cyclictest41-21ksoftirqd/323:40:183
415299352,6cyclictest0-21swapper/222:10:242
4152993519,13cyclictest33-21ksoftirqd/222:23:192
4152993513,19cyclictest19081-21idleruntime00:10:342
415299350,33cyclictest0-21swapper/220:40:152
106891350,2ptp4l6544-21kworker/3:219:36:393
106891350,2ptp4l30717-21kworker/3:020:09:303
106891350,2ptp4l30717-21kworker/3:020:09:303
106891350,1ptp4l401ktimersoftd/319:10:293
106891350,0ptp4l401ktimersoftd/320:58:153
4161993423,5cyclictest41-21ksoftirqd/323:30:293
4152993427,4cyclictest18285-21cron00:10:192
262252340,4sleep2415299cyclictest19:55:142
4161993328,3cyclictest41-21ksoftirqd/321:35:293
4161993328,3cyclictest41-21ksoftirqd/320:25:143
415299337,3cyclictest2340-21ls23:35:402
415299331,5cyclictest0-21swapper/220:20:262
4152993313,17cyclictest9758-21acpi19:20:242
38762330,2sleep10-21swapper/123:40:341
4161993223,4cyclictest41-21ksoftirqd/321:20:273
415299329,3cyclictest12373-21irqrtprio21:40:352
415299328,4cyclictest32084-21if_err_ens323:30:342
415299328,3cyclictest9138-21snmp_o5powerctl22:40:412
415299327,3cyclictest29952-21processes20:00:362
415299326,4cyclictest24054-21sed20:55:442
415299323,5cyclictest0-21swapper/222:35:312
415299322,5cyclictest0-21swapper/200:30:282
415299321,9cyclictest0-21swapper/219:10:282
415299321,7cyclictest0-21swapper/223:15:262
4152993215,14cyclictest33-21ksoftirqd/219:42:172
4152993214,15cyclictest33-21ksoftirqd/219:46:222
4152993212,17cyclictest15264-21/usr/sbin/munin20:40:362
106891320,2ptp4l13545-21kworker/3:000:33:493
106891320,1ptp4l401ktimersoftd/323:49:433
106891320,1ptp4l401ktimersoftd/319:16:123
106891320,0ptp4l401ktimersoftd/300:15:233
4161993126,3cyclictest41-21ksoftirqd/323:55:193
4161993126,3cyclictest41-21ksoftirqd/323:55:193
4161993125,3cyclictest41-21ksoftirqd/322:30:173
4161993125,3cyclictest41-21ksoftirqd/321:45:163
4161993125,3cyclictest41-21ksoftirqd/321:05:163
4161993119,9cyclictest41-21ksoftirqd/322:20:333
415299319,3cyclictest17630-21irqrtprio19:35:322
415299318,4cyclictest32631-21timerandwakeup20:06:112
415299318,4cyclictest32631-21timerandwakeup20:06:112
415299317,4cyclictest648-21rs:main2
415299317,3cyclictest28318-21cat22:15:252
415299317,3cyclictest13873-21ls00:00:292
415299313,8cyclictest26746-21apt-get23:20:352
415299312,7cyclictest11113-21apt-get23:55:282
415299312,10cyclictest27567-21uname19:55:352
4152993114,14cyclictest33-21ksoftirqd/223:49:582
4152993113,15cyclictest15087-21latency21:45:372
4152993110,3cyclictest3586-21cstates20:15:272
415299310,12cyclictest4654-21cstates21:25:312
4139993125,3cyclictest2729-21cron22:30:170
106891310,1ptp4l401ktimersoftd/321:14:183
106891310,1ptp4l401ktimersoftd/300:22:343
106891310,0ptp4l401ktimersoftd/319:30:123
106891310,0ptp4l401ktimersoftd/300:13:283
4161993025,3cyclictest41-21ksoftirqd/323:45:193
4161993025,3cyclictest41-21ksoftirqd/319:55:323
4161993024,3cyclictest41-21ksoftirqd/300:05:203
415299309,3cyclictest26190-21sh00:25:332
415299308,4cyclictest3287-21latency_hist20:15:142
415299308,4cyclictest17778-21wc20:45:262
415299308,3cyclictest141792chrt19:29:402
415299308,3cyclictest1055-21runrttasks22:48:462
415299307,3cyclictest26130-21grep21:00:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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