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2026-04-05 - 05:06
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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 Sun Apr 05, 2026 00:46:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
991850990irq/53-eth0-rx-0-21swapper/219:05:174
12850990irq/42-ahci0-21swapper/119:08:351
991850960irq/53-eth0-rx-0-21swapper/719:09:519
991850950irq/53-eth0-rx-0-21swapper/419:06:216
991950910irq/54-eth0-tx-0-21swapper/819:08:3410
12850910irq/42-ahci0-21swapper/319:05:195
991850900irq/53-eth0-rx-0-21swapper/1019:07:042
991850870irq/53-eth0-rx-0-21swapper/1119:08:103
991850860irq/53-eth0-rx-0-21swapper/519:08:107
721426553sleep00-21swapper/019:07:400
709325955sleep60-21swapper/619:06:118
705125955sleep90-21swapper/919:05:3711
7546994427cyclictest0-21swapper/021:24:410
7546994427cyclictest0-21swapper/021:24:410
7588993617cyclictest0-21swapper/1119:22:373
7588993314cyclictest0-21swapper/1121:17:183
758899310cyclictest0-21swapper/1120:09:183
7588993029cyclictest991850irq/53-eth0-rx-21:24:433
7588993029cyclictest991850irq/53-eth0-rx-21:24:423
7587993029cyclictest991850irq/53-eth0-rx-21:24:412
7587993029cyclictest991850irq/53-eth0-rx-21:24:402
7585993029cyclictest991850irq/53-eth0-rx-21:24:4910
7585993029cyclictest991850irq/53-eth0-rx-21:24:4910
7572993029cyclictest0-21swapper/521:24:567
7572993029cyclictest0-21swapper/521:24:557
7567992827cyclictest991850irq/53-eth0-rx-21:24:406
7567992827cyclictest991850irq/53-eth0-rx-21:24:396
7559992726cyclictest991850irq/53-eth0-rx-21:24:384
7559992726cyclictest991850irq/53-eth0-rx-21:24:374
7588992120cyclictest0-21swapper/1120:11:503
7588991917cyclictest0-21swapper/1121:08:413
7577991916cyclictest20145-21qemu-kvm20:09:268
7546991917cyclictest2271-21turbostat23:50:000
7546991915cyclictest29033-21kworker/0:121:28:170
7587991817cyclictest31788-1kworker/10:1H23:45:332
7587991817cyclictest0-21swapper/1022:52:292
7587991817cyclictest0-21swapper/1022:17:462
7587991817cyclictest0-21swapper/1021:47:292
7587991817cyclictest0-21swapper/1021:15:102
7587991816cyclictest0-21swapper/1021:57:232
7587991816cyclictest0-21swapper/1021:43:502
7587991816cyclictest0-21swapper/1021:30:382
7587991816cyclictest0-21swapper/1020:59:122
7587991816cyclictest0-21swapper/1020:25:442
7587991816cyclictest0-21swapper/1000:35:532
7587991816cyclictest0-21swapper/1000:35:532
758699181cyclictest991850irq/53-eth0-rx-23:51:2411
758699181cyclictest761ksoftirqd/919:40:2611
758699181cyclictest31643-21df_abs21:35:1211
758699181cyclictest0-21swapper/922:14:4511
758699181cyclictest0-21swapper/921:52:2611
7577991816cyclictest20146-21qemu-kvm20:46:198
7587991716cyclictest31788-1kworker/10:1H21:08:562
7587991716cyclictest31788-1kworker/10:1H20:46:342
7587991716cyclictest31788-1kworker/10:1H19:21:262
7587991716cyclictest0-21swapper/1023:56:002
7587991716cyclictest0-21swapper/1023:16:432
7587991716cyclictest0-21swapper/1023:10:322
7587991716cyclictest0-21swapper/1022:32:332
7587991716cyclictest0-21swapper/1021:37:522
7587991716cyclictest0-21swapper/1021:02:232
7587991716cyclictest0-21swapper/1020:30:322
7587991716cyclictest0-21swapper/1000:32:042
7587991716cyclictest0-21swapper/1000:28:522
7587991716cyclictest0-21swapper/1000:12:482
7587991716cyclictest0-21swapper/1000:06:112
7587991715cyclictest8590-21ssh23:27:202
7587991715cyclictest31788-1kworker/10:1H23:30:022
7587991715cyclictest22308-21ssh21:26:582
7587991715cyclictest21553-21ssh22:20:052
7587991715cyclictest19829-21munin-node20:50:232
7587991715cyclictest1872-21ssh23:21:332
7587991715cyclictest17302-21kworker/10:122:00:062
7587991715cyclictest0-21swapper/1023:41:502
758699170cyclictest991850irq/53-eth0-rx-23:32:0811
758699170cyclictest0-21swapper/922:46:5811
758699170cyclictest0-21swapper/921:25:5411
758699170cyclictest0-21swapper/921:20:1611
758699170cyclictest0-21swapper/921:20:1511
758699170cyclictest0-21swapper/919:45:1211
7577991715cyclictest20146-21qemu-kvm20:26:148
7577991715cyclictest20146-21qemu-kvm20:13:418
755999171cyclictest0-21swapper/223:45:194
755999171cyclictest0-21swapper/200:24:294
754699171cyclictest0-21swapper/023:44:450
754699171cyclictest0-21swapper/023:15:330
7588991615cyclictest266722sleep1120:15:233
7587991615cyclictest31788-1kworker/10:1H20:05:062
7587991615cyclictest0-21swapper/1023:36:272
7587991615cyclictest0-21swapper/1023:08:072
7587991615cyclictest0-21swapper/1022:36:022
7587991615cyclictest0-21swapper/1022:26:142
7587991615cyclictest0-21swapper/1000:24:122
7587991615cyclictest0-21swapper/1000:01:012
7587991614cyclictest8911-21snmp_rack3slot919:10:122
7586991615cyclictest991850irq/53-eth0-rx-23:41:3511
757799165cyclictest0-21swapper/620:45:018
7577991614cyclictest3619-21python00:15:248
7572991615cyclictest5489-21ssh22:59:587
7572991614cyclictest16965-21ssh22:40:437
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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