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2026-06-20 - 02:58
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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 rack3slot3.osadl.org (updated Sat Jun 20, 2026 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28676210997sleep30-21swapper/319:07:095
25767210794sleep10-21swapper/119:05:071
122501060irq/42-ahci0-21swapper/219:08:454
122501000irq/42-ahci0-21swapper/819:08:5010
3054950990irq/53-eth0-rx-0-21swapper/419:07:366
2891829992sleep90-21swapper/919:09:4011
3054950950irq/53-eth0-rx-0-21swapper/719:09:379
3054950940irq/53-eth0-rx-0-21swapper/1119:06:123
3054950900irq/53-eth0-rx-0-21swapper/519:06:247
2893227772sleep100-21swapper/1019:09:532
2867326654sleep00-21swapper/019:07:060
2856726353sleep60-21swapper/619:05:488
29149993114cyclictest831ksoftirqd/1021:57:522
2908699238cyclictest3054950irq/53-eth0-rx-22:26:120
2912499203cyclictest0-21swapper/622:21:468
2914999192cyclictest831ksoftirqd/1023:27:232
2914999192cyclictest831ksoftirqd/1022:34:172
2914999192cyclictest831ksoftirqd/1019:15:032
2914999192cyclictest3055050irq/54-eth0-tx-00:02:522
2914999192cyclictest3054950irq/53-eth0-rx-23:55:192
2914999192cyclictest3054950irq/53-eth0-rx-23:09:542
2914999192cyclictest3054950irq/53-eth0-rx-22:05:552
29149991915cyclictest831ksoftirqd/1019:58:132
2914999189cyclictest831ksoftirqd/1019:30:282
2914999188cyclictest831ksoftirqd/1020:20:032
2914999187cyclictest831ksoftirqd/1023:20:022
29149991817cyclictest831ksoftirqd/1019:35:122
29149991817cyclictest831ksoftirqd/1000:20:212
29149991817cyclictest3096-1kworker/10:2H21:11:292
29149991817cyclictest3096-1kworker/10:2H21:11:292
29149991817cyclictest0-21swapper/1023:50:102
29149991817cyclictest0-21swapper/1022:25:252
29149991816cyclictest16499-21kworker/10:023:45:372
2914999181cyclictest831ksoftirqd/1023:30:122
2914999181cyclictest831ksoftirqd/1023:11:212
2914999181cyclictest831ksoftirqd/1022:45:132
2914999181cyclictest831ksoftirqd/1022:10:122
2914999181cyclictest831ksoftirqd/1021:45:012
2914999181cyclictest831ksoftirqd/1021:25:142
2914999181cyclictest831ksoftirqd/1021:25:132
2914999181cyclictest831ksoftirqd/1020:45:012
2914999181cyclictest831ksoftirqd/1020:30:122
2914999181cyclictest831ksoftirqd/1019:10:012
2914999181cyclictest3055050irq/54-eth0-tx-21:50:062
2914999181cyclictest3055050irq/54-eth0-tx-00:31:092
2914999181cyclictest3054950irq/53-eth0-rx-23:35:062
2914999181cyclictest3054950irq/53-eth0-rx-23:17:032
2914999181cyclictest3054950irq/53-eth0-rx-22:21:002
2914999181cyclictest3054950irq/53-eth0-rx-20:17:582
2914999181cyclictest3054950irq/53-eth0-rx-00:09:422
2914999181cyclictest232712chrt19:45:072
29124991816cyclictest20109-21qemu-kvm21:30:408
29124991816cyclictest20109-21qemu-kvm21:13:478
29124991816cyclictest20109-21qemu-kvm21:13:478
303752170sleep10831ksoftirqd/1020:36:262
29149991716cyclictest26803-21munin-node21:15:112
29149991716cyclictest17180-21cat21:05:122
29149991716cyclictest17180-21cat21:05:112
29149991716cyclictest16831-21expr22:55:122
29149991716cyclictest10869-21ntp_states00:10:212
29149991716cyclictest10846-21awk20:10:162
29149991716cyclictest0-21swapper/1022:50:142
29149991716cyclictest0-21swapper/1000:36:142
29149991716cyclictest0-21swapper/1000:36:132
2914999170cyclictest97542sleep1020:55:032
2914999170cyclictest88912sleep1020:50:272
2914999170cyclictest831ksoftirqd/1022:40:252
2914999170cyclictest831ksoftirqd/1022:35:062
2914999170cyclictest831ksoftirqd/1021:40:242
2914999170cyclictest831ksoftirqd/1021:35:042
2914999170cyclictest831ksoftirqd/1021:31:452
2914999170cyclictest831ksoftirqd/1020:05:182
2914999170cyclictest831ksoftirqd/1019:50:182
2914999170cyclictest831ksoftirqd/1019:20:142
2914999170cyclictest831ksoftirqd/1000:15:092
2914999170cyclictest811rcuc/1020:25:022
2914999170cyclictest59652sleep1023:40:122
2914999170cyclictest47892sleep1020:01:332
2914999170cyclictest3055050irq/54-eth0-tx-00:25:082
2914999170cyclictest3055050irq/54-eth0-tx-00:25:082
2914999170cyclictest3054950irq/53-eth0-rx-23:00:042
2914999170cyclictest3054950irq/53-eth0-rx-22:15:112
2914999170cyclictest3054950irq/53-eth0-rx-21:20:052
2914999170cyclictest3054950irq/53-eth0-rx-21:20:042
2914999170cyclictest3054950irq/53-eth0-rx-21:00:112
2914999170cyclictest196302sleep1019:40:072
2914999170cyclictest165512sleep1022:00:122
2914999170cyclictest15972chrt20:41:382
2914999170cyclictest115242sleep1019:25:542
2908699170cyclictest31ksoftirqd/021:20:210
2908699170cyclictest31ksoftirqd/021:20:210
29142991614cyclictest9077-21mdstat22:20:1811
29142991614cyclictest4242-21taskset21:22:0411
29142991614cyclictest4242-21taskset21:22:0311
29142991614cyclictest31857-21ssh21:19:2211
29142991614cyclictest16296-21sendmail_mailtr23:20:2111
29142991614cyclictest0-21swapper/923:50:5711
29142991614cyclictest0-21swapper/923:47:2511
29142991614cyclictest0-21swapper/923:17:1711
2912499165cyclictest0-21swapper/622:50:178
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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