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2026-08-28 - 06:58
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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 Aug 28, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140210118,38sleep00-21swapper/019:05:330
4518999061,16cyclictest14-21ksoftirqd/000:05:140
4518999061,16cyclictest14-21ksoftirqd/000:05:140
4518999061,15cyclictest14-21ksoftirqd/020:25:240
4518998762,16cyclictest14-21ksoftirqd/019:10:120
4518998560,13cyclictest14-21ksoftirqd/020:30:250
4518998252,19cyclictest14-21ksoftirqd/020:00:130
4518998149,23cyclictest14-21ksoftirqd/021:50:140
277428134,35sleep10-21swapper/119:05:121
4518998050,20cyclictest14-21ksoftirqd/022:25:170
4518997954,15cyclictest14-21ksoftirqd/023:35:110
4518997950,19cyclictest14-21ksoftirqd/023:40:090
4518997950,19cyclictest14-21ksoftirqd/019:50:130
4518997949,18cyclictest14-21ksoftirqd/021:30:240
4518997949,16cyclictest14-21ksoftirqd/019:40:120
4518997850,18cyclictest14-21ksoftirqd/000:10:140
4518997750,17cyclictest14-21ksoftirqd/019:30:110
4518997750,16cyclictest14-21ksoftirqd/020:35:140
4518997747,17cyclictest14-21ksoftirqd/000:20:240
4518997738,23cyclictest14-21ksoftirqd/000:25:140
4518997652,13cyclictest14-21ksoftirqd/021:07:020
4518997648,18cyclictest14-21ksoftirqd/022:45:140
4518997645,18cyclictest14-21ksoftirqd/022:40:130
4518997549,17cyclictest14-21ksoftirqd/000:35:230
4518997546,18cyclictest14-21ksoftirqd/019:35:150
4518997344,16cyclictest0-21swapper/020:10:130
4518997343,17cyclictest0-21swapper/021:45:150
4518997343,17cyclictest0-21swapper/019:25:130
4518997143,16cyclictest0-21swapper/023:30:130
451899708,25cyclictest18088-21taskset21:15:230
4518997016,49cyclictest0-21swapper/019:15:250
4523996941,10cyclictest26-21ksoftirqd/100:01:581
4518996943,16cyclictest0-21swapper/000:30:220
4518996940,16cyclictest0-21swapper/021:20:130
4518996939,17cyclictest0-21swapper/022:10:130
4523996842,9cyclictest26-21ksoftirqd/119:56:121
4523996842,10cyclictest26-21ksoftirqd/121:48:541
4523996841,10cyclictest26-21ksoftirqd/123:51:201
4518996841,16cyclictest0-21swapper/021:55:120
4518996837,21cyclictest303972sleep023:20:220
4518996829,33cyclictest4513-21cyclictest20:45:140
4518996740,16cyclictest0-21swapper/000:00:140
4518996738,17cyclictest0-21swapper/021:40:140
4523996631,22cyclictest26-21ksoftirqd/100:39:001
4523996618,10cyclictest26-21ksoftirqd/121:05:161
4518996642,15cyclictest0-21swapper/023:15:130
4518996638,15cyclictest0-21swapper/000:15:110
4518996636,18cyclictest0-21swapper/023:05:160
4518996634,17cyclictest0-21swapper/023:00:150
4523996538,14cyclictest26-21ksoftirqd/122:55:001
4523996519,12cyclictest26-21ksoftirqd/100:20:051
4518996538,16cyclictest0-21swapper/019:55:130
4518996535,17cyclictest0-21swapper/023:50:260
4523996429,18cyclictest26-21ksoftirqd/122:21:401
4523996415,28cyclictest22996-21seq21:28:361
4518996435,18cyclictest0-21swapper/020:15:140
4518996421,37cyclictest243-21systemd-journal23:47:380
4518996414,40cyclictest0-21swapper/022:00:140
4523996330,17cyclictest26-21ksoftirqd/122:48:561
4523996325,13cyclictest26-21ksoftirqd/119:50:011
4523996319,22cyclictest26-21ksoftirqd/100:12:101
4523996312,37cyclictest26-21ksoftirqd/121:05:021
451899636,45cyclictest32119-21apt-get23:25:110
4518996336,16cyclictest0-21swapper/023:55:150
4518996334,17cyclictest0-21swapper/022:50:130
4518996314,44cyclictest0-21swapper/022:15:110
452399626,46cyclictest19425-21apt-get19:50:111
4523996220,20cyclictest26-21ksoftirqd/120:09:531
4518996236,16cyclictest0-21swapper/019:45:110
4518996235,21cyclictest9794-21seq20:50:320
4523996127,22cyclictest26-21ksoftirqd/123:30:001
4523996123,23cyclictest26-21ksoftirqd/120:25:001
4523996121,19cyclictest26-21ksoftirqd/122:57:521
4523996120,19cyclictest26-21ksoftirqd/120:10:371
4523996119,37cyclictest26986-21seq21:37:371
4523996110,23cyclictest26-21ksoftirqd/119:39:001
4518996128,25cyclictest4513-21cyclictest21:35:230
4518996118,35cyclictest21633-21diskstats22:55:210
452399609,18cyclictest151rcu_preempt00:00:041
4523996027,12cyclictest26-21ksoftirqd/121:20:521
4523996025,16cyclictest26-21ksoftirqd/122:00:011
4523996020,19cyclictest26-21ksoftirqd/120:30:271
4523996020,19cyclictest26-21ksoftirqd/119:20:171
4523996019,20cyclictest26-21ksoftirqd/119:25:161
4523996014,21cyclictest26-21ksoftirqd/100:15:221
4518996017,30cyclictest0-21swapper/020:55:140
4518996017,30cyclictest0-21swapper/020:55:140
4523995920,20cyclictest26-21ksoftirqd/122:40:241
4523995920,19cyclictest26-21ksoftirqd/119:40:161
4523995919,20cyclictest26-21ksoftirqd/123:20:281
4523995917,12cyclictest26-21ksoftirqd/100:30:411
4523995913,21cyclictest24366-21ntpq21:30:421
451899594,45cyclictest17598-21turbostat21:15:000
4518995938,14cyclictest243-21systemd-journal22:22:200
451899593,50cyclictest26604-21aten2.4-expect23:10:150
451899593,50cyclictest26604-21aten2.4-expect23:10:150
451899593,25cyclictest562-21runrttasks22:30:220
4523995832,14cyclictest0-21swapper/120:35:131
4523995832,13cyclictest26-21ksoftirqd/123:09:001
4523995823,15cyclictest26-21ksoftirqd/119:20:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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