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2026-08-23 - 17:40
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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 Sun Aug 23, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1297921300,7sleep10-21swapper/110:20:011
1712621120,6chrt17129-21wc10:30:270
99769911080,19cyclictest14-21ksoftirqd/007:40:130
99769910674,18cyclictest14-21ksoftirqd/012:30:240
99769910674,18cyclictest0-21swapper/011:10:130
99769910578,17cyclictest14-21ksoftirqd/008:40:140
99769910575,17cyclictest14-21ksoftirqd/010:05:150
99769910372,19cyclictest14-21ksoftirqd/011:20:150
99769910272,19cyclictest14-21ksoftirqd/009:50:120
99769910072,18cyclictest14-21ksoftirqd/009:00:140
257532990,6chrt25755-21ls12:25:220
9976999567,18cyclictest14-21ksoftirqd/010:45:110
9976999562,21cyclictest14-21ksoftirqd/009:40:130
9976999465,19cyclictest14-21ksoftirqd/009:05:240
9976999463,18cyclictest14-21ksoftirqd/007:25:120
9976999360,19cyclictest14-21ksoftirqd/011:25:150
9976999262,17cyclictest14-21ksoftirqd/010:00:100
9976999261,18cyclictest14-21ksoftirqd/010:55:130
9976999213,64cyclictest0-21swapper/011:55:130
9976999161,17cyclictest0-21swapper/011:45:150
9976999161,17cyclictest0-21swapper/011:45:150
9976999159,22cyclictest14-21ksoftirqd/012:10:130
9976999159,20cyclictest14-21ksoftirqd/010:35:160
9976999112,64cyclictest0-21swapper/012:00:260
9976998958,19cyclictest14-21ksoftirqd/009:25:130
9976998955,20cyclictest14-21ksoftirqd/008:50:140
9976998912,63cyclictest0-21swapper/012:05:130
9976998912,62cyclictest0-21swapper/011:35:130
9976998856,20cyclictest14-21ksoftirqd/008:55:140
9976998754,19cyclictest14-21ksoftirqd/008:05:160
997699847,64cyclictest0-21swapper/008:15:150
9976998451,20cyclictest14-21ksoftirqd/008:35:140
9976998427,27cyclictest0-21swapper/007:55:150
9976998416,60cyclictest0-21swapper/008:10:120
9976998149,20cyclictest14-21ksoftirqd/010:25:150
9976998045,22cyclictest14-21ksoftirqd/010:15:140
9976997946,21cyclictest14-21ksoftirqd/010:40:150
9976997913,51cyclictest0-21swapper/011:05:150
9976997810,52cyclictest20802-21diskmemload09:10:130
9980997749,10cyclictest503-21snmpd11:39:141
952327735,30sleep10-21swapper/107:07:061
89902777,54sleep09072-21/usr/sbin/munin07:05:260
9976997644,21cyclictest14-21ksoftirqd/011:40:140
9976997638,26cyclictest14-21ksoftirqd/010:10:130
9976997614,51cyclictest0-21swapper/008:45:240
997699758,49cyclictest25746-21taskset09:21:560
9976997440,25cyclictest21900-21seq12:15:260
9976997440,21cyclictest0-21swapper/011:50:140
9976997411,51cyclictest0-21swapper/010:50:130
9976997330,32cyclictest14-21ksoftirqd/011:00:240
9976997330,30cyclictest14-21ksoftirqd/007:10:120
997699729,45cyclictest24276-21munin-run09:20:010
9976997239,20cyclictest0-21swapper/009:45:150
9980997145,10cyclictest503-21snmpd09:03:431
9976997126,33cyclictest14-21ksoftirqd/012:35:110
9976997126,33cyclictest14-21ksoftirqd/012:35:110
9976997110,49cyclictest0-21swapper/011:15:160
997699709,49cyclictest0-21swapper/007:50:130
9976997039,20cyclictest0-21swapper/008:00:140
9976997039,20cyclictest0-21swapper/007:30:130
9976997014,40cyclictest22992-21runrttasks07:45:150
9976996924,33cyclictest14-21ksoftirqd/007:35:130
9976996924,33cyclictest14-21ksoftirqd/007:35:130
997699688,47cyclictest503-21snmpd07:15:120
9976996835,20cyclictest0-21swapper/007:20:160
9976996834,21cyclictest0-21swapper/009:55:150
9976996830,27cyclictest14-21ksoftirqd/010:20:150
9976996825,32cyclictest14-21ksoftirqd/008:25:110
998099672,23cyclictest30768-21cron12:40:001
998099672,23cyclictest30768-21cron12:40:001
9976996712,43cyclictest14-21ksoftirqd/012:20:130
9976996712,43cyclictest14-21ksoftirqd/012:20:130
9976996711,45cyclictest0-21swapper/008:20:130
9976996537,18cyclictest0-21swapper/011:30:140
997699651,51cyclictest0-21swapper/008:30:150
9980996419,10cyclictest26-21ksoftirqd/110:40:311
9976996422,29cyclictest0-21swapper/009:30:150
9980996239,8cyclictest7824-21telnet10:05:161
9980996213,43cyclictest0-21swapper/109:45:231
9980996138,9cyclictest21311-21telnet07:40:151
9980996113,42cyclictest0-21swapper/110:10:331
997699611,48cyclictest0-21swapper/009:35:140
9980996016,14cyclictest26-21ksoftirqd/107:30:011
9980995941,11cyclictest26-21ksoftirqd/108:45:021
9980995937,9cyclictest23673-21telnet12:20:151
9980995937,9cyclictest23673-21telnet12:20:151
998099586,47cyclictest0-21swapper/107:55:391
9980995844,8cyclictest26-21ksoftirqd/109:05:481
9980995839,11cyclictest26-21ksoftirqd/111:25:021
9980995835,9cyclictest26-21ksoftirqd/111:27:241
9980995835,9cyclictest26-21ksoftirqd/108:25:151
9980995834,9cyclictest26-21ksoftirqd/112:05:261
9980995833,18cyclictest26-21ksoftirqd/108:20:011
998099583,26cyclictest11899-21apt-get08:45:241
998099583,13cyclictest31304-21munin-run09:40:001
998099583,11cyclictest25147-21munin-run10:55:001
9980995830,7cyclictest26-21ksoftirqd/111:10:161
9980995819,33cyclictest0-21swapper/111:15:141
998099575,35cyclictest0-21swapper/107:47:531
9980995739,10cyclictest26-21ksoftirqd/112:00:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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