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2026-03-19 - 21:34
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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 rack4slot6.osadl.org (updated Thu Mar 19, 2026 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12539521160,2pltrace0-21swapper/711:49:597
12539521160,2pltrace0-21swapper/711:49:597
14626521110,102pltrace0-21swapper/607:06:056
17411521090,106pltrace0-21swapper/207:10:002
1462652880,80pltrace0-21swapper/507:05:115
1462652830,75pltrace0-21swapper/107:05:191
1732327359,10sleep30-21swapper/307:09:013
1737226842,10sleep70-21swapper/707:09:467
1724625945,10sleep00-21swapper/007:07:550
1501225945,10sleep40-21swapper/407:05:094
2047152300,4pltrace0-21swapper/709:10:127
543052280,0pltrace0-21swapper/707:45:197
310152280,16pltrace0-21swapper/610:39:416
1379252280,2pltrace0-21swapper/708:00:217
1765099240,23cyclictest0-21swapper/711:33:297
1764499230,22cyclictest0-21swapper/510:55:185
1764799201,13cyclictest0-21swapper/609:38:436
1741152200,5pltrace0-21swapper/707:12:277
1038352200,0pltrace0-21swapper/709:50:177
2650552190,0pltrace0-21swapper/712:19:457
17647991916,2cyclictest24255-21taskset10:13:526
17647991916,2cyclictest17367-21expr08:05:126
17647991916,2cyclictest1146-21snmpd09:54:186
1764799189,8cyclictest0-21swapper/611:15:566
17647991815,2cyclictest25146-21if_err_eth012:10:146
1764799180,14cyclictest0-21swapper/611:04:346
17630991815,2cyclictest0-21swapper/211:59:292
17630991815,2cyclictest0-21swapper/211:59:292
1379252180,1pltrace1283-21pltrace-run07:59:587
821652170,4pltrace0-21swapper/707:53:187
246352170,11pltrace0-21swapper/512:30:175
2371852170,0pltrace0-21swapper/712:14:517
17650991712,4cyclictest0-21swapper/708:46:397
1765099171,15cyclictest0-21swapper/712:07:487
17647991715,1cyclictest15622-21hwlatdetect10:55:136
17647991711,4cyclictest0-21swapper/611:06:376
17630991711,5cyclictest0-21swapper/212:28:282
1763099171,15cyclictest0-21swapper/211:28:442
17626991711,3cyclictest0-21swapper/111:28:411
2606252160,3pltrace0-21swapper/709:20:207
2389752160,1pltrace0-21swapper/507:21:595
1877852160,12pltrace54-21ksoftirqd/410:05:364
1765099161,8cyclictest0-21swapper/712:27:277
1765099161,14cyclictest0-21swapper/711:54:327
1765099161,14cyclictest0-21swapper/711:54:327
17647991614,1cyclictest13392-21awk07:55:206
17647991613,2cyclictest24150-21taskset08:15:196
17647991613,2cyclictest19982-21cat12:00:186
17647991613,2cyclictest1142-21/usr/sbin/munin12:25:146
17647991611,3cyclictest0-21swapper/612:36:406
17647991610,5cyclictest0-21swapper/611:37:386
17644991611,3cyclictest0-21swapper/510:02:055
17644991611,3cyclictest0-21swapper/509:20:435
17644991611,3cyclictest0-21swapper/508:46:065
17644991610,5cyclictest0-21swapper/510:30:145
1764499161,14cyclictest0-21swapper/510:52:545
17639991611,2cyclictest0-21swapper/407:42:014
17639991610,3cyclictest0-21swapper/410:41:334
1763999161,3cyclictest0-21swapper/407:11:324
1763999161,14cyclictest0-21swapper/412:03:094
1763999161,14cyclictest0-21swapper/407:16:484
17635991611,3cyclictest0-21swapper/308:02:373
1763599161,7cyclictest0-21swapper/309:28:403
1763599161,4cyclictest0-21swapper/309:43:283
17630991611,3cyclictest0-21swapper/208:33:372
17630991610,5cyclictest0-21swapper/212:24:002
17630991610,5cyclictest0-21swapper/212:18:002
17630991610,5cyclictest0-21swapper/208:21:492
1762699161,13cyclictest0-21swapper/111:20:101
17621991611,3cyclictest0-21swapper/008:55:240
17621991611,3cyclictest0-21swapper/008:54:030
17621991611,3cyclictest0-21swapper/008:54:030
1762199161,4cyclictest0-21swapper/012:35:450
929152150,10pltrace54-21ksoftirqd/408:54:184
929152150,10pltrace54-21ksoftirqd/408:54:184
3271152150,3pltrace0-21swapper/710:30:147
1765099159,4cyclictest0-21swapper/711:23:347
1765099150,8cyclictest0-21swapper/710:53:397
1765099150,14cyclictest0-21swapper/711:43:207
1765099150,14cyclictest0-21swapper/710:21:227
1765099150,14cyclictest0-21swapper/709:30:547
1765099150,14cyclictest0-21swapper/708:36:517
1765099150,14cyclictest0-21swapper/707:30:457
1765099150,13cyclictest0-21swapper/710:14:227
1764799159,3cyclictest0-21swapper/610:43:276
17647991513,1cyclictest7984-21/usr/sbin/munin09:45:156
17647991513,1cyclictest0-21swapper/612:20:106
17647991512,2cyclictest9901-21perl10:45:136
17647991512,2cyclictest8607-21/usr/sbin/munin07:50:126
17647991512,2cyclictest7303-21taskset09:41:046
17647991512,2cyclictest3690-21perl12:30:126
17647991512,2cyclictest27994-21cat10:20:116
17647991512,2cyclictest23386-21cstates11:10:116
17647991512,2cyclictest15537-21awk09:55:196
17647991512,2cyclictest14755-21taskset08:58:416
17647991512,2cyclictest13416-21expr11:50:126
17647991512,2cyclictest13416-21expr11:50:126
17647991512,2cyclictest10550-21cstates11:45:126
17647991512,2cyclictest10550-21cstates11:45:126
17647991510,3cyclictest0-21swapper/612:19:216
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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