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2026-05-12 - 09:06
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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 Tue May 12, 2026 00:46:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9918501180irq/53-eth0-rx-0-21swapper/119:09:451
9918501100irq/53-eth0-rx-0-21swapper/219:09:384
9918501040irq/53-eth0-rx-0-21swapper/719:08:399
991850960irq/53-eth0-rx-0-21swapper/819:05:3910
991850940irq/53-eth0-rx-0-21swapper/919:05:4411
991850930irq/53-eth0-rx-0-21swapper/1019:07:352
991850920irq/53-eth0-rx-0-21swapper/419:08:026
991850920irq/53-eth0-rx-0-21swapper/319:06:395
991850900irq/53-eth0-rx-0-21swapper/519:07:317
974026653sleep00-21swapper/019:07:040
961726353sleep60-21swapper/619:05:348
973825955sleep110-21swapper/1119:07:033
1016899370cyclictest0-21swapper/1121:08:293
1016899370cyclictest0-21swapper/1121:08:293
1011899320cyclictest0-21swapper/022:28:450
10165992510cyclictest10823-21snmp_rack3slot922:10:1510
1011899220cyclictest0-21swapper/023:27:510
1016799192cyclictest991850irq/53-eth0-rx-23:40:002
1016799192cyclictest991850irq/53-eth0-rx-22:52:112
1016799192cyclictest991850irq/53-eth0-rx-22:33:542
1016799192cyclictest991850irq/53-eth0-rx-00:28:062
1016799192cyclictest991850irq/53-eth0-rx-00:08:392
1016799192cyclictest12850irq/42-ahci21:25:262
1016799192cyclictest0-21swapper/1023:50:372
10118991917cyclictest0-21swapper/021:08:440
10118991917cyclictest0-21swapper/021:08:440
10167991817cyclictest9973-21kworker/10:022:24:512
10167991817cyclictest0-21swapper/1023:25:022
10167991817cyclictest0-21swapper/1023:22:452
10167991817cyclictest0-21swapper/1019:41:112
10167991817cyclictest0-21swapper/1000:32:262
10167991816cyclictest31899-21ssh00:15:522
10167991816cyclictest25095-21munin-node00:10:252
10167991816cyclictest18090-21ssh22:44:462
10167991816cyclictest0-21swapper/1021:50:182
1016799181cyclictest991950irq/54-eth0-tx-23:44:072
1016799181cyclictest991950irq/54-eth0-tx-22:26:112
1016799181cyclictest991950irq/54-eth0-tx-22:09:532
1016799181cyclictest991950irq/54-eth0-tx-22:01:362
1016799181cyclictest991950irq/54-eth0-tx-00:20:132
1016799181cyclictest991950irq/54-eth0-tx-00:20:132
1016799181cyclictest991850irq/53-eth0-rx-23:31:422
1016799181cyclictest991850irq/53-eth0-rx-23:01:482
1016799181cyclictest991850irq/53-eth0-rx-22:56:572
1016799181cyclictest991850irq/53-eth0-rx-22:46:012
1016799181cyclictest991850irq/53-eth0-rx-22:11:312
1016799181cyclictest991850irq/53-eth0-rx-21:58:212
1016799181cyclictest991850irq/53-eth0-rx-21:47:052
1016799181cyclictest991850irq/53-eth0-rx-21:20:362
1016799181cyclictest991850irq/53-eth0-rx-21:15:212
1016799181cyclictest991850irq/53-eth0-rx-20:55:232
1016799181cyclictest991850irq/53-eth0-rx-20:32:562
1016799181cyclictest991850irq/53-eth0-rx-00:02:362
1016799181cyclictest12850irq/42-ahci19:46:062
1016799181cyclictest10512sleep1020:20:472
10143991816cyclictest2308-21snmpd22:46:514
10118991816cyclictest14539-21kworker/0:221:14:380
10168991715cyclictest22146-21chrt19:22:413
1016899170cyclictest0-21swapper/1119:11:033
10167991716cyclictest0-21swapper/1019:31:362
1016799171cyclictest991850irq/53-eth0-rx-19:15:112
1016799170cyclictest991850irq/53-eth0-rx-23:45:042
1016799170cyclictest991850irq/53-eth0-rx-23:15:242
1016799170cyclictest991850irq/53-eth0-rx-23:10:462
1016799170cyclictest991850irq/53-eth0-rx-23:05:232
1016799170cyclictest991850irq/53-eth0-rx-22:35:572
1016799170cyclictest991850irq/53-eth0-rx-21:35:022
1016799170cyclictest991850irq/53-eth0-rx-21:30:082
1016799170cyclictest991850irq/53-eth0-rx-21:10:302
1016799170cyclictest991850irq/53-eth0-rx-20:40:162
1016799170cyclictest991850irq/53-eth0-rx-20:11:012
1016799170cyclictest991850irq/53-eth0-rx-20:05:052
1016799170cyclictest991850irq/53-eth0-rx-19:56:022
1016799170cyclictest991850irq/53-eth0-rx-19:12:362
1016799170cyclictest991850irq/53-eth0-rx-00:36:312
1016799170cyclictest87162chrt19:50:072
1016799170cyclictest831ksoftirqd/1023:55:192
1016799170cyclictest75892sleep1021:40:202
1016799170cyclictest75892sleep1021:40:202
1016799170cyclictest5712sleep1019:37:052
1016799170cyclictest50872sleep1020:29:362
1016799170cyclictest306092sleep1021:03:502
1016799170cyclictest270552sleep1020:15:092
1016799170cyclictest233092sleep1020:54:142
1016799170cyclictest219712sleep1019:20:282
1016799170cyclictest188922sleep1020:01:082
1016799170cyclictest15642chrt21:05:382
1016799170cyclictest15642chrt21:05:382
1016799170cyclictest12850irq/42-ahci22:15:132
1016799170cyclictest12850irq/42-ahci20:46:132
1016799170cyclictest12850irq/42-ahci19:25:252
1016799170cyclictest123762sleep1020:39:232
1015699173cyclictest0-21swapper/622:20:018
10156991715cyclictest24420-21python23:15:228
10155991715cyclictest9870-21qemu-kvm19:30:397
1015499171cyclictest0-21swapper/400:05:146
10143991715cyclictest2308-21snmpd23:14:374
10143991715cyclictest2308-21snmpd22:21:214
10118991716cyclictest14539-21kworker/0:221:22:320
14050160irq/18-ehci_hcd0-21swapper/022:11:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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