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2026-08-28 - 11:06
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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 Fri Aug 28, 2026 00:46:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501090irq/42-ahci0-21swapper/219:08:444
122501030irq/42-ahci0-21swapper/119:09:101
8853210293sleep80-21swapper/819:08:0310
3054950990irq/53-eth0-rx-0-21swapper/719:09:169
3054950970irq/53-eth0-rx-0-21swapper/419:05:296
3055050950irq/54-eth0-tx-0-21swapper/319:05:165
902429186sleep90-21swapper/919:09:3911
3054950790irq/53-eth0-rx-0-21swapper/519:06:027
3054950740irq/53-eth0-rx-0-21swapper/1119:05:133
3054950670irq/53-eth0-rx-0-21swapper/1019:05:562
877526353sleep60-21swapper/619:07:018
881225853sleep00-21swapper/019:07:310
9160993215cyclictest3054950irq/53-eth0-rx-21:11:090
9160993215cyclictest3054950irq/53-eth0-rx-21:11:090
916099320cyclictest0-21swapper/019:15:120
916099230cyclictest0-21swapper/021:15:530
9160992120cyclictest0-21swapper/019:13:570
916099200cyclictest0-21swapper/021:41:360
920299192cyclictest3054950irq/53-eth0-rx-23:32:312
920299192cyclictest3054950irq/53-eth0-rx-23:05:382
920299192cyclictest3054950irq/53-eth0-rx-22:40:102
920299192cyclictest3054950irq/53-eth0-rx-22:39:532
920299192cyclictest3054950irq/53-eth0-rx-22:26:392
920299192cyclictest3054950irq/53-eth0-rx-22:18:332
920299192cyclictest3054950irq/53-eth0-rx-22:13:302
920299192cyclictest3054950irq/53-eth0-rx-22:02:252
920299192cyclictest3054950irq/53-eth0-rx-21:59:032
920299192cyclictest3054950irq/53-eth0-rx-21:46:502
920299192cyclictest3054950irq/53-eth0-rx-21:17:312
920299192cyclictest3054950irq/53-eth0-rx-00:31:592
920299192cyclictest3054950irq/53-eth0-rx-00:08:562
920299192cyclictest12250irq/42-ahci22:24:062
919599192cyclictest0-21swapper/921:55:2711
919599192cyclictest0-21swapper/921:36:4111
919599192cyclictest0-21swapper/920:25:1411
919599192cyclictest0-21swapper/919:45:1311
919299190cyclictest0-21swapper/721:15:539
919299190cyclictest0-21swapper/721:11:089
919299190cyclictest0-21swapper/721:11:089
916099190cyclictest0-21swapper/021:30:060
916099190cyclictest0-21swapper/021:27:210
9202991817cyclictest13725-1kworker/10:1H21:42:212
9202991817cyclictest0-21swapper/1022:50:142
9202991817cyclictest0-21swapper/1019:31:402
920299181cyclictest3054950irq/53-eth0-rx-23:50:532
920299181cyclictest3054950irq/53-eth0-rx-23:47:582
920299181cyclictest3054950irq/53-eth0-rx-23:42:292
920299181cyclictest3054950irq/53-eth0-rx-23:35:592
920299181cyclictest3054950irq/53-eth0-rx-23:25:102
920299181cyclictest3054950irq/53-eth0-rx-23:02:162
920299181cyclictest3054950irq/53-eth0-rx-22:57:362
920299181cyclictest3054950irq/53-eth0-rx-22:47:502
920299181cyclictest3054950irq/53-eth0-rx-22:06:452
920299181cyclictest3054950irq/53-eth0-rx-21:25:432
920299181cyclictest3054950irq/53-eth0-rx-21:22:332
920299181cyclictest3054950irq/53-eth0-rx-20:17:092
920299181cyclictest3054950irq/53-eth0-rx-20:08:472
920299181cyclictest3054950irq/53-eth0-rx-19:47:222
920299181cyclictest3054950irq/53-eth0-rx-00:37:522
920299181cyclictest3054950irq/53-eth0-rx-00:37:522
920299181cyclictest3054950irq/53-eth0-rx-00:16:212
920299181cyclictest3054950irq/53-eth0-rx-00:13:222
920299181cyclictest12250irq/42-ahci21:10:452
920299181cyclictest12250irq/42-ahci21:10:452
920299181cyclictest12250irq/42-ahci19:23:252
919599181cyclictest761ksoftirqd/922:25:1711
919599181cyclictest761ksoftirqd/919:35:1311
919599181cyclictest741rcuc/921:11:3211
919599181cyclictest741rcuc/921:11:3211
919599181cyclictest0-21swapper/923:51:5311
919599181cyclictest0-21swapper/923:43:1511
919599181cyclictest0-21swapper/923:38:5111
919599181cyclictest0-21swapper/922:55:1211
919599181cyclictest0-21swapper/922:51:1111
919599181cyclictest0-21swapper/922:24:3811
919599181cyclictest0-21swapper/922:17:2611
919599181cyclictest0-21swapper/921:50:4511
919599181cyclictest0-21swapper/921:26:2711
919599181cyclictest0-21swapper/921:05:0211
919599181cyclictest0-21swapper/920:45:2711
919599181cyclictest0-21swapper/920:45:2711
919599181cyclictest0-21swapper/919:40:0111
919599181cyclictest0-21swapper/900:25:2111
919599181cyclictest0-21swapper/900:25:2111
9192991816cyclictest0-21swapper/719:49:569
918799184cyclictest0-21swapper/323:50:165
918799180cyclictest0-21swapper/321:16:005
918799180cyclictest0-21swapper/321:13:145
918799180cyclictest0-21swapper/321:13:135
9160991817cyclictest3054950irq/53-eth0-rx-20:28:540
481180ksoftirqd/50-21swapper/521:12:337
481180ksoftirqd/50-21swapper/521:12:337
3055050180irq/54-eth0-tx-0-21swapper/121:15:571
920399178cyclictest0-21swapper/1119:14:593
920399170cyclictest0-21swapper/1122:36:533
920299170cyclictest89462sleep1000:20:052
920299170cyclictest75312sleep1020:31:132
920299170cyclictest6742sleep1021:06:522
920299170cyclictest38642chrt20:26:012
920299170cyclictest324072sleep1021:35:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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