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2026-03-10 - 10:31
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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 Tue Mar 10, 2026 00:46:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9918501140irq/53-eth0-rx-0-21swapper/119:06:111
128501120irq/42-ahci0-21swapper/319:08:585
7199210893sleep80-21swapper/819:06:1610
7308210692sleep70-21swapper/719:07:399
7314210292sleep00-21swapper/019:07:440
9918501010irq/53-eth0-rx-0-21swapper/219:05:184
991850970irq/53-eth0-rx-0-21swapper/1019:08:032
991850950irq/53-eth0-rx-0-21swapper/419:05:216
991850890irq/53-eth0-rx-0-21swapper/519:05:167
991850880irq/53-eth0-rx-0-21swapper/1119:05:113
7642997829cyclictest0-21swapper/021:10:300
741226765sleep90-21swapper/919:08:1711
7642996313cyclictest0-21swapper/021:20:080
716126353sleep60-21swapper/619:05:518
764299480cyclictest0-21swapper/021:19:580
7642993714cyclictest0-21swapper/019:15:150
768499360cyclictest0-21swapper/1121:10:403
7642993617cyclictest0-21swapper/019:26:370
768499350cyclictest0-21swapper/1121:22:083
768499340cyclictest0-21swapper/1122:19:563
768499320cyclictest0-21swapper/1121:09:503
7684993015cyclictest901ksoftirqd/1122:20:063
764299290cyclictest0-21swapper/022:19:520
991950280irq/54-eth0-tx-0-21swapper/822:19:5310
766299210cyclictest0-21swapper/320:55:355
766299210cyclictest0-21swapper/320:12:065
7642992120cyclictest0-21swapper/022:13:490
768399192cyclictest991850irq/53-eth0-rx-23:04:492
768399192cyclictest991850irq/53-eth0-rx-22:22:022
768399192cyclictest991850irq/53-eth0-rx-00:35:352
768399192cyclictest991850irq/53-eth0-rx-00:27:482
768299192cyclictest0-21swapper/923:38:0311
768299192cyclictest0-21swapper/919:40:1411
768299192cyclictest0-21swapper/900:35:4211
766299190cyclictest0-21swapper/320:21:415
764299190cyclictest0-21swapper/022:08:440
7683991817cyclictest14552-1kworker/10:0H19:22:392
7683991817cyclictest0-21swapper/1023:20:182
7683991817cyclictest0-21swapper/1022:08:262
7683991816cyclictest8619-21snmp_rack3slot922:35:122
7683991816cyclictest18425-21ssh22:43:002
768399181cyclictest991950irq/54-eth0-tx-22:56:002
768399181cyclictest991950irq/54-eth0-tx-22:11:422
768399181cyclictest991950irq/54-eth0-tx-00:03:182
768399181cyclictest991850irq/53-eth0-rx-23:52:052
768399181cyclictest991850irq/53-eth0-rx-23:49:342
768399181cyclictest991850irq/53-eth0-rx-23:44:252
768399181cyclictest991850irq/53-eth0-rx-23:36:072
768399181cyclictest991850irq/53-eth0-rx-23:17:142
768399181cyclictest991850irq/53-eth0-rx-23:14:572
768399181cyclictest991850irq/53-eth0-rx-22:50:062
768399181cyclictest991850irq/53-eth0-rx-22:47:072
768399181cyclictest991850irq/53-eth0-rx-22:18:482
768399181cyclictest991850irq/53-eth0-rx-22:03:062
768399181cyclictest991850irq/53-eth0-rx-21:22:262
768399181cyclictest991850irq/53-eth0-rx-20:15:472
768399181cyclictest991850irq/53-eth0-rx-19:15:032
768399181cyclictest991850irq/53-eth0-rx-00:30:022
768399181cyclictest991850irq/53-eth0-rx-00:13:442
768399181cyclictest12850irq/42-ahci22:28:252
768399181cyclictest12850irq/42-ahci20:08:572
768299181cyclictest9258-21ssh21:15:3111
768299181cyclictest761ksoftirqd/900:30:2711
768299181cyclictest741rcuc/923:58:3811
768299181cyclictest5041-21mdstat23:50:1811
768299181cyclictest23868-21rm21:29:2811
768299181cyclictest17051-1kworker/9:1H22:20:4311
768299181cyclictest0-21swapper/923:42:4911
768299181cyclictest0-21swapper/923:20:5211
768299181cyclictest0-21swapper/923:17:0411
768299181cyclictest0-21swapper/923:11:2611
768299181cyclictest0-21swapper/922:52:4711
768299181cyclictest0-21swapper/922:17:4711
768299181cyclictest0-21swapper/922:03:5011
768299181cyclictest0-21swapper/921:52:2711
768299181cyclictest0-21swapper/921:52:2611
768299181cyclictest0-21swapper/921:35:2911
768299181cyclictest0-21swapper/921:30:4111
768299181cyclictest0-21swapper/921:10:1611
768299181cyclictest0-21swapper/900:27:4511
768299181cyclictest0-21swapper/900:15:1411
7679991816cyclictest31726-21qemu-kvm21:29:418
7676991816cyclictest20241-21qemu-kvm20:08:287
766299182cyclictest0-21swapper/320:35:465
766299182cyclictest0-21swapper/320:09:075
766299182cyclictest0-21swapper/319:28:495
766299180cyclictest0-21swapper/319:12:045
7683991716cyclictest0-21swapper/1019:35:402
7683991715cyclictest28698-21ssh21:32:102
7683991715cyclictest12206-21munin-node23:55:262
768399170cyclictest991850irq/53-eth0-rx-23:30:022
768399170cyclictest991850irq/53-eth0-rx-23:25:042
768399170cyclictest991850irq/53-eth0-rx-23:06:342
768399170cyclictest991850irq/53-eth0-rx-22:30:052
768399170cyclictest991850irq/53-eth0-rx-21:40:152
768399170cyclictest991850irq/53-eth0-rx-21:25:052
768399170cyclictest991850irq/53-eth0-rx-21:10:002
768399170cyclictest991850irq/53-eth0-rx-20:30:102
768399170cyclictest991850irq/53-eth0-rx-19:55:122
768399170cyclictest991850irq/53-eth0-rx-19:30:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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