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2026-09-05 - 07:08
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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 Sep 05, 2026 00:46:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18470210894sleep50-21swapper/519:07:447
122501080irq/42-ahci0-21swapper/219:07:044
30549501070irq/53-eth0-rx-0-21swapper/419:05:326
18479210592sleep10-21swapper/119:07:511
18315210492sleep70-21swapper/719:05:459
30549501020irq/53-eth0-rx-0-21swapper/819:05:1410
12250970irq/42-ahci0-21swapper/319:08:235
1864429287sleep90-21swapper/919:09:2311
3054950750irq/53-eth0-rx-0-21swapper/1019:05:332
3054950640irq/53-eth0-rx-0-21swapper/1119:05:303
1845326454sleep60-21swapper/619:07:338
1838925955sleep00-21swapper/019:06:380
1880399340cyclictest0-21swapper/019:10:240
1882399260cyclictest0-21swapper/221:10:014
1882399260cyclictest0-21swapper/221:09:434
1880399240cyclictest0-21swapper/020:15:550
1883299220cyclictest14292-21ssh21:10:307
1882399210cyclictest0-21swapper/200:22:044
18838992019cyclictest0-21swapper/1119:10:363
1883799203cyclictest831ksoftirqd/1023:40:122
1883799203cyclictest831ksoftirqd/1021:40:132
1883899190cyclictest0-21swapper/1121:08:263
1883799195cyclictest0-21swapper/1020:08:212
1883799192cyclictest3054950irq/53-eth0-rx-23:53:312
1883799192cyclictest3054950irq/53-eth0-rx-23:29:142
1883799192cyclictest3054950irq/53-eth0-rx-22:53:262
1883799192cyclictest3054950irq/53-eth0-rx-00:31:382
1883699192cyclictest0-21swapper/923:26:0411
1883699192cyclictest0-21swapper/922:17:4011
13450190irq/18-ehci_hcd0-21swapper/022:15:200
18838991816cyclictest2375-21python20:55:243
18838991816cyclictest0-21swapper/1121:40:433
1883899180cyclictest0-21swapper/1120:15:593
1883799181cyclictest831ksoftirqd/1021:15:222
1883799181cyclictest831ksoftirqd/1021:13:022
1883799181cyclictest3055050irq/54-eth0-tx-00:26:462
1883799181cyclictest3054950irq/53-eth0-rx-23:36:272
1883799181cyclictest3054950irq/53-eth0-rx-23:30:202
1883799181cyclictest3054950irq/53-eth0-rx-23:15:042
1883799181cyclictest3054950irq/53-eth0-rx-23:00:562
1883799181cyclictest3054950irq/53-eth0-rx-22:39:552
1883799181cyclictest3054950irq/53-eth0-rx-22:15:162
1883799181cyclictest3054950irq/53-eth0-rx-22:08:102
1883799181cyclictest3054950irq/53-eth0-rx-21:52:002
1883799181cyclictest3054950irq/53-eth0-rx-21:38:052
1883799181cyclictest3054950irq/53-eth0-rx-21:38:052
1883799181cyclictest3054950irq/53-eth0-rx-20:51:042
1883799181cyclictest3054950irq/53-eth0-rx-20:42:442
1883799181cyclictest3054950irq/53-eth0-rx-00:39:312
1883799181cyclictest3054950irq/53-eth0-rx-00:13:562
1883799181cyclictest3054950irq/53-eth0-rx-00:05:332
1883699181cyclictest3055050irq/54-eth0-tx-21:26:5811
1883699181cyclictest3054950irq/53-eth0-rx-22:58:2011
1883699181cyclictest25975-1kworker/9:1H20:36:2911
1883699181cyclictest24344-21ssh22:36:1511
1883699181cyclictest14565-21ssh00:12:1711
1883699181cyclictest0-21swapper/923:59:0811
1883699181cyclictest0-21swapper/923:53:1911
1883699181cyclictest0-21swapper/923:48:5511
1883699181cyclictest0-21swapper/923:35:0411
1883699181cyclictest0-21swapper/923:17:5211
1883699181cyclictest0-21swapper/923:10:2211
1883699181cyclictest0-21swapper/923:09:3811
1883699181cyclictest0-21swapper/923:03:4311
1883699181cyclictest0-21swapper/922:45:0611
1883699181cyclictest0-21swapper/922:42:0511
1883699181cyclictest0-21swapper/922:27:1411
1883699181cyclictest0-21swapper/922:20:5311
1883699181cyclictest0-21swapper/922:13:2311
1883699181cyclictest0-21swapper/922:09:5511
1883699181cyclictest0-21swapper/921:58:1411
1883699181cyclictest0-21swapper/921:44:1311
1883699181cyclictest0-21swapper/921:18:3311
1883699181cyclictest0-21swapper/921:05:3211
1883699181cyclictest0-21swapper/919:55:2011
1883699181cyclictest0-21swapper/919:38:5611
1883699181cyclictest0-21swapper/900:37:2111
1883699181cyclictest0-21swapper/900:31:5011
1883699181cyclictest0-21swapper/900:16:2011
1883699181cyclictest0-21swapper/900:02:1911
1883599184cyclictest0-21swapper/821:30:3610
1883499185cyclictest0-21swapper/700:00:019
18832991816cyclictest18551-21qemu-kvm19:25:137
18828991816cyclictest3055050irq/54-eth0-tx-21:10:265
18803991817cyclictest0-21swapper/021:10:280
1883899170cyclictest0-21swapper/1121:10:273
18837991716cyclictest4203-21df_abs20:15:112
1883799170cyclictest93142chrt22:00:072
1883799170cyclictest93142chrt22:00:062
1883799170cyclictest831ksoftirqd/1023:12:042
1883799170cyclictest831ksoftirqd/1019:40:122
1883799170cyclictest811rcuc/1019:35:202
1883799170cyclictest811rcuc/1019:15:022
1883799170cyclictest73592sleep1021:31:052
1883799170cyclictest4462sleep1020:55:122
1883799170cyclictest306972sleep1019:21:002
1883799170cyclictest3055050irq/54-eth0-tx-21:00:152
1883799170cyclictest3054950irq/53-eth0-rx-23:55:492
1883799170cyclictest3054950irq/53-eth0-rx-23:46:042
1883799170cyclictest3054950irq/53-eth0-rx-23:05:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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