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2026-07-09 - 07:50
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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 Thu Jul 09, 2026 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1129421340,6chrt11292-21grep19:45:340
298339912272,31cyclictest26-21ksoftirqd/100:00:261
298279910578,18cyclictest14-21ksoftirqd/022:35:120
298279910371,18cyclictest14-21ksoftirqd/023:55:140
298279910371,18cyclictest14-21ksoftirqd/023:55:140
29833991028,21cyclictest0-21swapper/100:35:141
298339910210,23cyclictest0-21swapper/122:15:101
298339910210,23cyclictest0-21swapper/122:15:101
298279910174,18cyclictest14-21ksoftirqd/021:50:120
29827999968,18cyclictest0-21swapper/022:15:120
29827999968,18cyclictest0-21swapper/022:15:120
29827999967,19cyclictest14-21ksoftirqd/019:40:130
292232990,6chrt29226-21wc20:35:240
2983399977,24cyclictest0-21swapper/121:35:111
2983399977,23cyclictest0-21swapper/120:30:121
29833999710,20cyclictest0-21swapper/122:10:141
29833999510,22cyclictest0-21swapper/123:40:261
29827999568,17cyclictest14-21ksoftirqd/022:20:110
29827999566,16cyclictest14-21ksoftirqd/022:50:140
29827999464,20cyclictest0-21swapper/020:03:230
29827999363,19cyclictest14-21ksoftirqd/022:40:130
2983399929,23cyclictest0-21swapper/121:30:121
29827999265,18cyclictest14-21ksoftirqd/021:10:120
29827999263,19cyclictest14-21ksoftirqd/021:15:120
29827999263,17cyclictest14-21ksoftirqd/020:20:130
29827999260,20cyclictest14-21ksoftirqd/023:15:120
29827999259,19cyclictest14-21ksoftirqd/019:30:150
2886329110,35sleep028924-21python319:05:260
2983399897,22cyclictest0-21swapper/120:35:111
29827998960,19cyclictest14-21ksoftirqd/022:10:130
2983399888,21cyclictest0-21swapper/100:20:121
29827998758,19cyclictest14-21ksoftirqd/020:10:140
29827998756,21cyclictest14-21ksoftirqd/019:50:250
29827998756,21cyclictest14-21ksoftirqd/019:50:250
29833998610,21cyclictest0-21swapper/123:00:121
29827998662,15cyclictest14-21ksoftirqd/023:25:090
29827998558,19cyclictest14-21ksoftirqd/020:50:120
29827998352,21cyclictest14-21ksoftirqd/020:05:220
29827998313,59cyclictest0-21swapper/020:30:130
2983399827,24cyclictest0-21swapper/121:20:121
29827998250,19cyclictest14-21ksoftirqd/000:05:110
2962328224,46sleep10-21swapper/119:09:141
29827998152,18cyclictest14-21ksoftirqd/023:35:140
29827997950,19cyclictest14-21ksoftirqd/022:00:120
29827997950,18cyclictest14-21ksoftirqd/021:55:100
29827997950,18cyclictest14-21ksoftirqd/021:55:100
29827997945,24cyclictest14-21ksoftirqd/020:15:120
29827997913,26cyclictest0-21swapper/023:05:120
29833997822,18cyclictest12217-21cron21:20:001
29827997849,19cyclictest14-21ksoftirqd/000:00:260
29827997749,18cyclictest14-21ksoftirqd/022:45:100
29827997746,25cyclictest14-21ksoftirqd/023:50:110
29827997746,20cyclictest14-21ksoftirqd/022:05:130
29833997620,16cyclictest15779-21sort21:30:011
29827997626,35cyclictest14-21ksoftirqd/022:55:120
2983399757,50cyclictest0-21swapper/123:45:121
29833997533,22cyclictest26-21ksoftirqd/100:05:121
2982799759,50cyclictest11626-21runrttasks00:20:130
29827997535,29cyclictest14-21ksoftirqd/019:20:120
29827997438,23cyclictest14-21ksoftirqd/019:10:140
2983399738,19cyclictest0-21swapper/122:25:131
29827997336,25cyclictest14-21ksoftirqd/019:55:130
29827997336,25cyclictest14-21ksoftirqd/019:55:130
2983399723,21cyclictest26768-21/usr/sbin/munin22:00:211
29827997232,26cyclictest14-21ksoftirqd/000:25:140
2983399716,49cyclictest0-21swapper/100:30:131
29833997110,49cyclictest0-21swapper/122:40:151
29827997131,29cyclictest14-21ksoftirqd/019:15:150
29827997111,46cyclictest17643-21sshd21:35:140
2983399703,19cyclictest4102-40mandb00:00:031
2983399703,19cyclictest4102-40mandb00:00:031
29827997036,26cyclictest14-21ksoftirqd/023:30:130
29827997036,24cyclictest14-21ksoftirqd/000:10:120
29827997035,25cyclictest14-21ksoftirqd/020:55:130
29827997031,29cyclictest14-21ksoftirqd/023:00:150
29827997030,28cyclictest14-21ksoftirqd/023:45:140
29827997026,33cyclictest0-21swapper/023:10:240
2983399696,15cyclictest0-21swapper/122:05:111
29833996915,14cyclictest26-21ksoftirqd/121:00:211
29827996946,19cyclictest14-21ksoftirqd/023:20:130
29827996939,20cyclictest14-21ksoftirqd/020:45:120
29827996932,24cyclictest14-21ksoftirqd/000:30:150
29827996929,30cyclictest14-21ksoftirqd/021:30:140
2983399688,46cyclictest0-21swapper/100:10:131
2983399688,23cyclictest0-21swapper/119:50:221
2983399688,23cyclictest0-21swapper/119:50:221
29833996828,24cyclictest0-21swapper/120:45:121
29833996810,45cyclictest0-21swapper/120:40:131
29827996837,18cyclictest0-21swapper/021:40:110
29827996837,18cyclictest0-21swapper/021:40:110
29827996830,27cyclictest14-21ksoftirqd/022:30:120
29827996828,29cyclictest14-21ksoftirqd/019:35:110
29827996721,36cyclictest14-21ksoftirqd/021:05:210
29827996632,25cyclictest14-21ksoftirqd/021:25:110
29827996623,32cyclictest14-21ksoftirqd/021:00:150
29827996621,33cyclictest14-21ksoftirqd/021:45:130
29833996527,21cyclictest26-21ksoftirqd/119:15:131
29833996526,24cyclictest0-21swapper/123:30:111
29833996523,25cyclictest0-21swapper/100:25:121
29827996535,19cyclictest0-21swapper/021:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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