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2026-03-22 - 02:47
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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 Mar 22, 2026 00:46:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9918501100irq/53-eth0-rx-0-21swapper/119:09:341
9918501080irq/53-eth0-rx-0-21swapper/519:08:157
29975210893sleep80-21swapper/819:07:1510
9918501020irq/53-eth0-rx-0-21swapper/219:09:434
2831029787sleep90-21swapper/919:05:1611
12850940irq/42-ahci0-21swapper/419:05:066
991850930irq/53-eth0-rx-0-21swapper/719:05:449
991850890irq/53-eth0-rx-0-21swapper/319:05:165
3016827472sleep100-21swapper/1019:09:052
3000627362sleep00-21swapper/019:07:440
2986427163sleep110-21swapper/1119:05:543
3001626455sleep60-21swapper/619:07:498
30381994715cyclictest0-21swapper/1119:15:523
30381993917cyclictest0-21swapper/1119:23:173
30381993534cyclictest0-21swapper/1119:12:013
14050330irq/18-ehci_hcd0-21swapper/019:15:150
3038199290cyclictest0-21swapper/1120:27:203
30380992710cyclictest831ksoftirqd/1022:59:362
3038099247cyclictest831ksoftirqd/1023:37:002
3038199238cyclictest0-21swapper/1120:15:593
3038099192cyclictest831ksoftirqd/1023:40:522
3038099192cyclictest831ksoftirqd/1023:13:482
3038099192cyclictest831ksoftirqd/1023:07:022
3038099192cyclictest831ksoftirqd/1022:18:062
3038099192cyclictest831ksoftirqd/1022:18:062
3038099192cyclictest831ksoftirqd/1021:32:392
3038099192cyclictest831ksoftirqd/1021:05:152
3038099192cyclictest831ksoftirqd/1020:30:232
30380991914cyclictest831ksoftirqd/1022:35:192
30380991914cyclictest831ksoftirqd/1022:35:182
3037999192cyclictest991850irq/53-eth0-rx-21:10:1611
3037999192cyclictest0-21swapper/921:46:0111
30381991817cyclictest991850irq/53-eth0-rx-20:10:013
30380991817cyclictest831ksoftirqd/1019:20:002
30380991817cyclictest0-21swapper/1023:33:352
30380991817cyclictest0-21swapper/1022:30:242
30380991817cyclictest0-21swapper/1000:36:042
30380991817cyclictest0-21swapper/1000:07:592
30380991816cyclictest8415-21snmp_rack3slot919:20:152
30380991816cyclictest21550-21ssh00:10:562
3038099181cyclictest991950irq/54-eth0-tx-21:19:222
3038099181cyclictest991850irq/53-eth0-rx-22:27:362
3038099181cyclictest991850irq/53-eth0-rx-21:56:312
3038099181cyclictest991850irq/53-eth0-rx-21:40:572
3038099181cyclictest991850irq/53-eth0-rx-00:30:392
3038099181cyclictest991850irq/53-eth0-rx-00:24:232
3038099181cyclictest831ksoftirqd/1023:16:592
3038099181cyclictest831ksoftirqd/1023:04:202
3038099181cyclictest831ksoftirqd/1022:11:442
3038099181cyclictest831ksoftirqd/1022:02:422
3038099181cyclictest831ksoftirqd/1021:27:092
3038099181cyclictest831ksoftirqd/1021:14:282
3038099181cyclictest831ksoftirqd/1019:35:272
3037999185cyclictest0-21swapper/921:30:0111
3037999181cyclictest991850irq/53-eth0-rx-00:33:5711
3037999181cyclictest5609-21timerwakeupswit23:05:2611
3037999181cyclictest30237-21sed23:25:2411
3037999181cyclictest21805-21kworker/9:022:12:4611
3037999181cyclictest10947-21ssh22:18:5611
3037999181cyclictest10947-21ssh22:18:5611
3037999181cyclictest0-21swapper/923:35:2211
3037999181cyclictest0-21swapper/923:34:1711
3037999181cyclictest0-21swapper/923:20:2511
3037999181cyclictest0-21swapper/923:12:4611
3037999181cyclictest0-21swapper/923:00:0211
3037999181cyclictest0-21swapper/922:50:1711
3037999181cyclictest0-21swapper/922:50:1711
3037999181cyclictest0-21swapper/922:37:4411
3037999181cyclictest0-21swapper/922:37:4411
3037999181cyclictest0-21swapper/921:26:5111
3037999181cyclictest0-21swapper/921:19:0411
3037999181cyclictest0-21swapper/920:40:1111
3037999181cyclictest0-21swapper/920:25:2711
3037999181cyclictest0-21swapper/919:25:1611
3037999181cyclictest0-21swapper/900:25:1211
3037999181cyclictest0-21swapper/900:10:3711
30380991716cyclictest831ksoftirqd/1022:45:162
30380991716cyclictest831ksoftirqd/1020:35:142
30380991716cyclictest831ksoftirqd/1020:00:152
30380991716cyclictest0-21swapper/1023:50:142
30380991716cyclictest0-21swapper/1022:50:122
30380991716cyclictest0-21swapper/1022:50:122
30380991716cyclictest0-21swapper/1020:45:152
3038099170cyclictest991950irq/54-eth0-tx-20:25:202
3038099170cyclictest991850irq/53-eth0-rx-23:55:122
3038099170cyclictest991850irq/53-eth0-rx-23:45:022
3038099170cyclictest991850irq/53-eth0-rx-21:35:012
3038099170cyclictest991850irq/53-eth0-rx-21:20:132
3038099170cyclictest991850irq/53-eth0-rx-19:30:332
3038099170cyclictest991850irq/53-eth0-rx-19:25:172
3038099170cyclictest831ksoftirqd/1023:20:222
3038099170cyclictest831ksoftirqd/1022:40:362
3038099170cyclictest831ksoftirqd/1022:40:352
3038099170cyclictest831ksoftirqd/1022:20:062
3038099170cyclictest831ksoftirqd/1021:50:382
3038099170cyclictest831ksoftirqd/1021:45:262
3038099170cyclictest831ksoftirqd/1020:50:022
3038099170cyclictest831ksoftirqd/1020:20:022
3038099170cyclictest831ksoftirqd/1019:55:112
3038099170cyclictest831ksoftirqd/1019:50:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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