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2025-11-08 - 09:30
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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 highest latencies:
System rack3slot6.osadl.org (updated Sat Nov 08, 2025 00:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
562421270,16sleep0171rcuc/022:50:000
236789911456,36cyclictest0-21swapper/021:05:120
236789910554,30cyclictest0-21swapper/021:25:110
23678991047,76cyclictest0-21swapper/020:35:160
23678991018,23cyclictest0-21swapper/019:20:170
23678991017,24cyclictest0-21swapper/020:45:120
2367899999,22cyclictest0-21swapper/019:30:140
23678999941,41cyclictest14-21ksoftirqd/019:45:260
23678999941,41cyclictest14-21ksoftirqd/019:45:250
23678999913,22cyclictest0-21swapper/022:05:160
23681999667,17cyclictest26-21ksoftirqd/119:35:111
2367899967,24cyclictest0-21swapper/022:55:120
23678999512,64cyclictest0-21swapper/021:40:150
23681999465,17cyclictest26-21ksoftirqd/122:20:151
23681999464,20cyclictest26-21ksoftirqd/123:30:161
23678999436,36cyclictest14-21ksoftirqd/021:45:120
2367899938,24cyclictest0-21swapper/023:45:120
2367899937,24cyclictest0-21swapper/019:55:140
2367899936,24cyclictest0-21swapper/022:25:130
23678999310,23cyclictest0-21swapper/023:50:140
2367899929,21cyclictest0-21swapper/021:00:130
2367899929,21cyclictest0-21swapper/021:00:120
2367899927,24cyclictest0-21swapper/020:05:150
2367899926,65cyclictest0-21swapper/023:15:170
2367899926,65cyclictest0-21swapper/023:15:160
23681999165,15cyclictest26-21ksoftirqd/100:35:121
23681999058,20cyclictest26-21ksoftirqd/121:35:171
23681999057,21cyclictest26-21ksoftirqd/122:15:131
2367899907,27cyclictest0-21swapper/023:40:120
2367899907,24cyclictest0-21swapper/020:25:130
2367899899,23cyclictest0-21swapper/023:35:220
2367899898,22cyclictest0-21swapper/022:30:150
2181928925,52sleep00-21swapper/019:05:030
2181928925,52sleep00-21swapper/019:05:030
23681998759,21cyclictest26-21ksoftirqd/120:25:111
2367899879,26cyclictest0-21swapper/019:40:140
2367899877,25cyclictest0-21swapper/000:00:110
23681998658,20cyclictest26-21ksoftirqd/119:10:141
23681998657,20cyclictest26-21ksoftirqd/100:20:131
2367899867,35cyclictest0-21swapper/023:30:160
23681998452,19cyclictest26-21ksoftirqd/120:20:151
2367899847,24cyclictest0-21swapper/000:25:130
23678998410,51cyclictest0-21swapper/020:50:110
23681998347,22cyclictest26-21ksoftirqd/122:50:171
23678998338,12cyclictest16857-21munin-run20:20:000
23681998147,20cyclictest26-21ksoftirqd/123:20:141
23681998125,44cyclictest0-21swapper/100:10:151
23681998044,25cyclictest26-21ksoftirqd/119:50:141
23678998024,17cyclictest25034-21sort20:40:360
23681997944,21cyclictest26-21ksoftirqd/119:15:141
2367899795,41cyclictest0-21swapper/020:30:210
23681997842,25cyclictest26-21ksoftirqd/119:32:401
23681997820,48cyclictest0-21swapper/100:30:161
2367899787,22cyclictest0-21swapper/022:10:140
2367899782,34cyclictest6287-21sshd21:20:250
2368199778,58cyclictest1999-21diskmemload21:10:161
2368199778,58cyclictest1999-21diskmemload21:10:151
2367899773,38cyclictest1183-21sshd19:35:250
23681997645,23cyclictest26-21ksoftirqd/122:40:141
23678997629,27cyclictest0-21swapper/021:55:140
2193827631,34sleep10-21swapper/119:05:131
2193827631,34sleep10-21swapper/119:05:131
293582750,6sleep129360-21aten2.4_r3power20:55:141
23681997546,23cyclictest26-21ksoftirqd/123:55:151
23681997539,24cyclictest26-21ksoftirqd/121:15:261
23681997446,23cyclictest26-21ksoftirqd/122:35:131
23681997444,20cyclictest26-21ksoftirqd/120:05:171
23681997438,23cyclictest26-21ksoftirqd/122:25:161
23681997430,33cyclictest26-21ksoftirqd/121:30:261
23681997336,27cyclictest26-21ksoftirqd/120:40:121
23681997310,49cyclictest20535-21taskset20:30:131
2367899738,21cyclictest0-21swapper/019:25:120
2367899737,29cyclictest0-21swapper/020:20:110
23681997241,21cyclictest26-21ksoftirqd/100:15:161
23681997240,20cyclictest0-21swapper/122:10:131
23681997234,28cyclictest26-21ksoftirqd/123:10:141
2367899723,11cyclictest1999-21diskmemload21:10:180
2367899723,11cyclictest1999-21diskmemload21:10:180
23678997229,25cyclictest0-21swapper/021:50:150
23678997223,23cyclictest151rcu_preempt23:10:160
23681997129,31cyclictest26-21ksoftirqd/120:10:131
23681997113,46cyclictest0-21swapper/120:15:151
23681997027,33cyclictest26-21ksoftirqd/121:20:251
2367899706,15cyclictest0-21swapper/023:20:120
23678997028,25cyclictest0-21swapper/023:05:150
23678997028,25cyclictest0-21swapper/020:00:270
23681996933,25cyclictest26-21ksoftirqd/121:55:171
23681996932,28cyclictest26-21ksoftirqd/100:00:141
23681996930,30cyclictest26-21ksoftirqd/122:05:131
23681996929,30cyclictest26-21ksoftirqd/123:35:251
23681996928,29cyclictest26-21ksoftirqd/119:55:131
2367899696,45cyclictest0-21swapper/022:15:150
23681996726,32cyclictest26-21ksoftirqd/121:50:151
23678996729,23cyclictest0-21swapper/000:30:140
23678996728,24cyclictest0-21swapper/000:35:110
23678996727,25cyclictest0-21swapper/000:10:140
23681996634,21cyclictest0-21swapper/100:05:121
23681996634,21cyclictest0-21swapper/100:05:111
23681996525,31cyclictest26-21ksoftirqd/121:00:151
23681996525,31cyclictest26-21ksoftirqd/121:00:141
23681996524,31cyclictest26-21ksoftirqd/120:50:141
2368199644,16cyclictest26-21ksoftirqd/119:20:141
23681996319,39cyclictest26-21ksoftirqd/121:40:441
23681996314,35cyclictest4476-21apt-get19:45:151
23681996314,35cyclictest4476-21apt-get19:45:141
23678996323,24cyclictest0-21swapper/000:15:130
23681996218,32cyclictest26-21ksoftirqd/123:05:171
23678996221,25cyclictest0-21swapper/022:20:120
23681996116,36cyclictest26-21ksoftirqd/123:00:111
2367899617,40cyclictest0-21swapper/022:00:130
23678996135,20cyclictest14-21ksoftirqd/023:55:200
2368199605,11cyclictest0-21swapper/121:08:051
23681996032,18cyclictest26-21ksoftirqd/123:25:131
23681996014,40cyclictest0-21swapper/120:35:191
2367899603,49cyclictest1596-21latency_hist00:10:020
2367899603,49cyclictest1596-21latency_hist00:10:010
23681995933,9cyclictest26-21ksoftirqd/122:57:371
23678995919,16cyclictest26084-21aten2.4-expect19:15:170
23678995830,23cyclictest14-21ksoftirqd/022:52:380
23681995740,11cyclictest0-21swapper/120:00:091
23681995728,20cyclictest0-21swapper/119:40:171
23681995715,31cyclictest0-21swapper/119:25:131
23678995725,27cyclictest14-21ksoftirqd/022:35:250
23678995720,30cyclictest18045-21aten2.4-expect23:25:180
2368199569,36cyclictest0-21swapper/123:45:121
2368199565,45cyclictest0-21swapper/121:45:251
23681995615,29cyclictest0-21swapper/123:40:141
23681995614,30cyclictest0-21swapper/100:25:151
23681995527,20cyclictest31813-21seq22:30:321
23681995512,32cyclictest0-21swapper/123:50:161
2367899556,43cyclictest5784-21munin-run21:20:000
2367899556,27cyclictest0-21swapper/021:30:470
23678995519,22cyclictest0-21swapper/020:10:150
2368199547,41cyclictest0-21swapper/123:15:131
2368199547,41cyclictest0-21swapper/123:15:121
2368199546,41cyclictest0-21swapper/120:50:021
23681995336,11cyclictest504-21snmpd22:00:301
23678995331,16cyclictest13223-21runrttasks21:38:430
23678995319,20cyclictest0-21swapper/023:00:120
23678995234,12cyclictest14-21ksoftirqd/000:23:180
23678995212,16cyclictest29360-21aten2.4-expect20:55:150
23678995211,28cyclictest14-21ksoftirqd/019:50:150
23681995021,22cyclictest254-21systemd-journal21:26:171
2367899505,18cyclictest0-21swapper/019:13:270
2367899505,10cyclictest0-21swapper/022:40:240
23681994916,14cyclictest26-21ksoftirqd/122:45:201
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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