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2026-03-11 - 07:18
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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 rack3slot3.osadl.org (updated Wed Mar 11, 2026 00:46:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20489210994sleep20-21swapper/219:08:084
17498210995sleep90-21swapper/919:05:0211
20434210791sleep60-21swapper/619:07:248
20417210693sleep70-21swapper/719:07:139
991850990irq/53-eth0-rx-0-21swapper/819:09:1510
991850970irq/53-eth0-rx-0-21swapper/419:05:576
991850960irq/53-eth0-rx-0-21swapper/119:09:331
991850940irq/53-eth0-rx-0-21swapper/319:08:015
991850880irq/53-eth0-rx-0-21swapper/519:05:447
2058228883sleep100-21swapper/1019:08:402
2045427058sleep00-21swapper/019:07:430
991850690irq/53-eth0-rx-0-21swapper/1119:06:263
20823993617cyclictest0-21swapper/1122:23:173
20823993416cyclictest0-21swapper/1122:30:113
2078999212cyclictest0-21swapper/021:21:550
2078999204cyclictest0-21swapper/021:12:290
2078999202cyclictest0-21swapper/022:11:480
20823991918cyclictest0-21swapper/1121:25:253
20822991917cyclictest0-21swapper/1020:28:012
2082199192cyclictest741rcuc/920:33:1111
2082199192cyclictest0-21swapper/922:17:4011
2082199192cyclictest0-21swapper/922:03:0011
20822991816cyclictest3063-21ssh23:39:012
20822991816cyclictest22811-21kworker/10:222:24:182
2082199181cyclictest12850irq/42-ahci19:46:4311
2082199181cyclictest0-21swapper/923:35:1911
2082199181cyclictest0-21swapper/923:32:5311
2082199181cyclictest0-21swapper/923:32:5211
2082199181cyclictest0-21swapper/923:13:3311
2082199181cyclictest0-21swapper/922:23:2011
2082199181cyclictest0-21swapper/922:10:0811
2082199181cyclictest0-21swapper/920:45:0811
2082199181cyclictest0-21swapper/900:38:0711
2082199181cyclictest0-21swapper/900:29:3811
20818991816cyclictest20989-21qemu-kvm22:09:038
2081799180cyclictest0-21swapper/523:47:547
20789991815cyclictest0-21swapper/021:30:140
20789991814cyclictest0-21swapper/019:10:010
991950170irq/54-eth0-tx-0-21swapper/721:20:429
20823991715cyclictest0-21swapper/1121:23:433
2082399170cyclictest0-21swapper/1120:20:093
20822991716cyclictest831ksoftirqd/1000:20:132
20822991716cyclictest23522-21cat20:40:012
20822991716cyclictest22811-21kworker/10:221:16:482
20822991716cyclictest0-21swapper/1023:28:382
20822991716cyclictest0-21swapper/1023:08:022
20822991716cyclictest0-21swapper/1022:59:542
20822991716cyclictest0-21swapper/1020:12:192
20822991716cyclictest0-21swapper/1019:35:102
20822991716cyclictest0-21swapper/1019:35:102
20822991715cyclictest30441-21ssh22:40:482
20822991715cyclictest27834-21ssh22:14:212
20822991715cyclictest18718-21ssh00:16:472
20822991715cyclictest15823-21ssh21:37:262
20822991715cyclictest1431-21ssh00:03:592
20821991716cyclictest0-21swapper/923:43:5011
20821991716cyclictest0-21swapper/923:43:5011
20821991716cyclictest0-21swapper/921:46:2311
20821991715cyclictest13935-21ssh21:35:2111
2082199170cyclictest0-21swapper/923:59:3711
2082199170cyclictest0-21swapper/923:24:3511
2082199170cyclictest0-21swapper/923:08:2011
2082199170cyclictest0-21swapper/922:38:4411
2082199170cyclictest0-21swapper/921:26:4311
2082199170cyclictest0-21swapper/921:15:1811
2082199170cyclictest0-21swapper/919:50:2611
2082199170cyclictest0-21swapper/919:50:2611
2082199170cyclictest0-21swapper/900:30:1511
2082199170cyclictest0-21swapper/900:00:1711
20817991715cyclictest7702-21ssh23:41:247
20817991715cyclictest7702-21ssh23:41:237
20789991716cyclictest0-21swapper/021:27:270
2082399162cyclictest0-21swapper/1122:19:173
20823991615cyclictest0-21swapper/1122:11:593
20823991615cyclictest0-21swapper/1120:14:353
2082399160cyclictest0-21swapper/1120:19:573
20822991615cyclictest831ksoftirqd/1023:20:182
20822991615cyclictest831ksoftirqd/1021:20:112
20822991615cyclictest831ksoftirqd/1020:20:122
20822991615cyclictest30783-21expr21:50:122
20822991615cyclictest1625-21ssh22:19:302
20822991615cyclictest14171-21snmp_rack3slot921:10:132
20822991615cyclictest0-21swapper/1023:00:402
20822991615cyclictest0-21swapper/1020:55:012
20822991614cyclictest7577-21ssh00:08:482
20822991614cyclictest3907-21ssh21:28:122
20822991614cyclictest20079-21ssh22:06:432
20821991615cyclictest19393-21ssh00:17:5711
20821991615cyclictest0-21swapper/923:25:4711
20821991615cyclictest0-21swapper/922:50:1311
20821991615cyclictest0-21swapper/922:27:0411
20821991615cyclictest0-21swapper/921:30:4311
20821991615cyclictest0-21swapper/921:20:5811
20821991615cyclictest0-21swapper/921:11:1911
20821991615cyclictest0-21swapper/921:05:1911
20821991615cyclictest0-21swapper/920:59:4511
2081899160cyclictest0-21swapper/620:25:018
2081799160cyclictest0-21swapper/523:20:347
2081799160cyclictest0-21swapper/522:53:337
2081599165cyclictest0-21swapper/321:50:425
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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