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2026-09-24 - 04:56
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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 Thu Sep 24, 2026 00:46:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30549501130irq/53-eth0-rx-0-21swapper/119:09:021
28670210895sleep90-21swapper/919:06:1011
28635210893sleep60-21swapper/619:05:428
30549501000irq/53-eth0-rx-0-21swapper/319:08:575
12250980irq/42-ahci0-21swapper/219:08:244
3054950960irq/53-eth0-rx-0-21swapper/419:07:486
3054950950irq/53-eth0-rx-0-21swapper/819:05:2210
3054950910irq/53-eth0-rx-0-21swapper/719:08:319
3054950900irq/53-eth0-rx-0-21swapper/519:05:177
3054950730irq/53-eth0-rx-0-21swapper/1019:07:492
3054950680irq/53-eth0-rx-0-21swapper/1119:08:063
2864625853sleep00-21swapper/019:05:490
29164992914cyclictest250552chrt21:11:253
29163992413cyclictest0-21swapper/1021:10:452
29164992120cyclictest0-21swapper/1119:27:573
29163992113cyclictest135892sleep1000:12:582
29163992113cyclictest0-21swapper/1023:11:432
29163992113cyclictest0-21swapper/1000:21:592
29163992013cyclictest31800-21ssh22:40:102
29163992013cyclictest0-21swapper/1022:20:162
29163992013cyclictest0-21swapper/1021:42:282
29163992013cyclictest0-21swapper/1021:18:422
29163992013cyclictest0-21swapper/1020:41:042
29163992012cyclictest0-21swapper/1023:32:592
2916399192cyclictest3054950irq/53-eth0-rx-23:09:092
2916399192cyclictest3054950irq/53-eth0-rx-22:49:412
2916399192cyclictest3054950irq/53-eth0-rx-22:29:442
29163991913cyclictest15797-21ssh23:47:182
29163991913cyclictest10322-21ssh00:36:492
29163991913cyclictest0-21swapper/1023:28:512
29163991913cyclictest0-21swapper/1022:39:082
29163991913cyclictest0-21swapper/1022:33:022
29163991913cyclictest0-21swapper/1022:10:382
29163991913cyclictest0-21swapper/1021:52:422
29163991913cyclictest0-21swapper/1021:36:062
29163991913cyclictest0-21swapper/1021:34:192
29163991913cyclictest0-21swapper/1021:26:542
29163991913cyclictest0-21swapper/1020:12:492
29163991913cyclictest0-21swapper/1020:01:192
29163991913cyclictest0-21swapper/1000:26:272
29163991913cyclictest0-21swapper/1000:06:502
29163991912cyclictest0-21swapper/1023:55:152
29163991912cyclictest0-21swapper/1023:15:332
29163991912cyclictest0-21swapper/1021:45:122
29163991912cyclictest0-21swapper/1021:45:122
29163991912cyclictest0-21swapper/1000:00:372
2916299192cyclictest0-21swapper/922:14:5711
2916299192cyclictest0-21swapper/921:11:5411
2916199195cyclictest0-21swapper/821:25:1810
2916199195cyclictest0-21swapper/821:11:4910
2916399183cyclictest0-21swapper/1022:50:202
29163991817cyclictest0-21swapper/1022:02:512
29163991813cyclictest0-21swapper/1021:21:382
29163991812cyclictest0-21swapper/1019:14:382
29163991811cyclictest30026-1kworker/10:2H20:46:552
29163991811cyclictest0-21swapper/1022:06:212
2916399181cyclictest3055050irq/54-eth0-tx-23:36:382
2916399181cyclictest3054950irq/53-eth0-rx-23:53:092
2916399181cyclictest3054950irq/53-eth0-rx-23:40:122
2916399181cyclictest3054950irq/53-eth0-rx-23:00:562
2916399181cyclictest3054950irq/53-eth0-rx-21:57:362
2916399181cyclictest3054950irq/53-eth0-rx-21:08:002
2916399181cyclictest3054950irq/53-eth0-rx-20:25:462
2916399181cyclictest3054950irq/53-eth0-rx-00:30:452
2916399181cyclictest12250irq/42-ahci22:55:052
2916299181cyclictest761ksoftirqd/922:05:2011
2916299181cyclictest761ksoftirqd/919:20:1211
2916299181cyclictest761ksoftirqd/919:20:1111
2916299181cyclictest741rcuc/923:25:0911
2916299181cyclictest23466-21cat23:55:0011
2916299181cyclictest0-21swapper/923:56:0511
2916299181cyclictest0-21swapper/922:58:4111
2916299181cyclictest0-21swapper/922:47:1111
2916299181cyclictest0-21swapper/922:30:3511
2916299181cyclictest0-21swapper/922:25:1611
2916299181cyclictest0-21swapper/922:24:4011
2916299181cyclictest0-21swapper/922:15:1611
2916299181cyclictest0-21swapper/921:42:3311
2916299181cyclictest0-21swapper/921:35:5211
2916299181cyclictest0-21swapper/921:33:1611
2916299181cyclictest0-21swapper/921:20:2811
2916299181cyclictest0-21swapper/921:02:4511
2916299181cyclictest0-21swapper/921:00:0011
2916299181cyclictest0-21swapper/920:13:5211
2916299181cyclictest0-21swapper/900:35:5311
2916299181cyclictest0-21swapper/900:09:5511
2915999187cyclictest0-21swapper/600:40:008
2915999184cyclictest0-21swapper/600:24:228
29137991816cyclictest9762-21snmp_rack3slot920:51:264
2916499170cyclictest0-21swapper/1120:11:203
2916399173cyclictest0-21swapper/1019:30:172
2916399170cyclictest92502sleep1020:06:522
2916399170cyclictest307102chrt19:52:512
2916399170cyclictest3054950irq/53-eth0-rx-23:20:252
2916399170cyclictest3054950irq/53-eth0-rx-22:15:342
2916399170cyclictest3054950irq/53-eth0-rx-20:35:162
2916399170cyclictest3054950irq/53-eth0-rx-20:30:012
2916399170cyclictest3054950irq/53-eth0-rx-20:15:202
2916399170cyclictest3054950irq/53-eth0-rx-19:36:092
2916399170cyclictest3054950irq/53-eth0-rx-19:25:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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