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2026-04-19 - 12:20
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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 Apr 19, 2026 00:46:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25192210390sleep40-21swapper/419:06:056
128501030irq/42-ahci0-21swapper/119:08:501
25198210290sleep100-21swapper/1019:06:112
9918501000irq/53-eth0-rx-0-21swapper/319:08:455
991850980irq/53-eth0-rx-0-21swapper/219:05:254
991850950irq/53-eth0-rx-0-21swapper/919:05:0111
991850940irq/53-eth0-rx-0-21swapper/719:08:499
991850870irq/53-eth0-rx-0-21swapper/519:07:137
991850830irq/53-eth0-rx-0-21swapper/1119:07:363
991850820irq/53-eth0-rx-0-21swapper/819:08:3810
2526526753sleep00-21swapper/019:07:010
2236926757sleep60-21swapper/619:05:078
25651993617cyclictest0-21swapper/019:22:400
2569399320cyclictest0-21swapper/1120:12:313
25651992726cyclictest0-21swapper/019:25:270
2565199250cyclictest0-21swapper/019:18:350
25651992415cyclictest18192-21munin-node21:10:230
2569299192cyclictest991850irq/53-eth0-rx-23:57:352
2569299192cyclictest991850irq/53-eth0-rx-23:43:232
2569299192cyclictest991850irq/53-eth0-rx-22:59:082
2569299192cyclictest991850irq/53-eth0-rx-22:32:442
2569299192cyclictest991850irq/53-eth0-rx-22:18:462
2569299192cyclictest991850irq/53-eth0-rx-21:23:482
2569299192cyclictest991850irq/53-eth0-rx-00:21:422
2569199192cyclictest0-21swapper/923:14:5011
2569199192cyclictest0-21swapper/922:47:1511
2567599193cyclictest0-21swapper/323:58:155
2567599193cyclictest0-21swapper/323:54:415
2567599193cyclictest0-21swapper/323:36:195
2567599193cyclictest0-21swapper/323:25:555
2567599193cyclictest0-21swapper/323:25:005
2567599193cyclictest0-21swapper/323:17:565
2567599193cyclictest0-21swapper/323:01:455
2567599193cyclictest0-21swapper/322:45:505
2567599193cyclictest0-21swapper/322:42:155
2567599193cyclictest0-21swapper/322:33:155
2567599193cyclictest0-21swapper/321:56:165
2567599193cyclictest0-21swapper/321:42:375
2567599193cyclictest0-21swapper/321:38:035
2567599193cyclictest0-21swapper/321:20:535
2567599193cyclictest0-21swapper/321:19:435
2567599193cyclictest0-21swapper/321:08:265
2567599193cyclictest0-21swapper/321:08:265
2567599193cyclictest0-21swapper/321:00:265
2567599193cyclictest0-21swapper/320:33:065
2567599193cyclictest0-21swapper/319:10:255
2567599193cyclictest0-21swapper/300:33:015
2567599193cyclictest0-21swapper/300:20:395
2567599193cyclictest0-21swapper/300:19:225
2567599193cyclictest0-21swapper/300:03:115
2567599192cyclictest0-21swapper/319:25:195
2567599190cyclictest0-21swapper/300:25:515
2565199193cyclictest0-21swapper/022:15:260
25692991817cyclictest20069-21ssh23:48:402
25692991817cyclictest20069-21ssh23:48:402
25692991817cyclictest0-21swapper/1023:17:022
25692991817cyclictest0-21swapper/1021:47:082
25692991817cyclictest0-21swapper/1021:43:412
25692991817cyclictest0-21swapper/1020:45:232
25692991817cyclictest0-21swapper/1020:45:232
25692991816cyclictest31668-1kworker/10:0H22:44:142
25692991816cyclictest2468-21ssh23:07:282
2569299181cyclictest991950irq/54-eth0-tx-22:03:032
2569299181cyclictest991850irq/53-eth0-rx-23:54:522
2569299181cyclictest991850irq/53-eth0-rx-23:00:542
2569299181cyclictest991850irq/53-eth0-rx-22:51:542
2569299181cyclictest991850irq/53-eth0-rx-22:35:402
2569299181cyclictest991850irq/53-eth0-rx-22:10:482
2569299181cyclictest991850irq/53-eth0-rx-22:06:492
2569299181cyclictest991850irq/53-eth0-rx-21:57:372
2569299181cyclictest991850irq/53-eth0-rx-21:51:592
2569299181cyclictest991850irq/53-eth0-rx-21:35:012
2569299181cyclictest991850irq/53-eth0-rx-21:30:382
2569299181cyclictest991850irq/53-eth0-rx-21:27:492
2569299181cyclictest991850irq/53-eth0-rx-21:17:042
2569299181cyclictest991850irq/53-eth0-rx-21:14:342
2569299181cyclictest991850irq/53-eth0-rx-00:16:202
2569299181cyclictest991850irq/53-eth0-rx-00:06:522
2569299181cyclictest12850irq/42-ahci20:08:552
2569299180cyclictest0-21swapper/1019:50:002
2569199181cyclictest761ksoftirqd/922:10:1311
2569199181cyclictest10553-21cpu21:30:1111
2569199181cyclictest0-21swapper/923:40:2111
2569199181cyclictest0-21swapper/923:39:4911
2569199181cyclictest0-21swapper/923:30:0411
2569199181cyclictest0-21swapper/923:20:1911
2569199181cyclictest0-21swapper/923:06:5211
2569199181cyclictest0-21swapper/922:57:2711
2569199181cyclictest0-21swapper/921:57:0811
2569199181cyclictest0-21swapper/921:42:4611
2569199181cyclictest0-21swapper/919:36:0111
2569199181cyclictest0-21swapper/900:39:0911
2569199181cyclictest0-21swapper/900:02:4011
25687991816cyclictest25993-21qemu-kvm22:08:257
25687991816cyclictest11180-21ssh00:06:377
2567599183cyclictest0-21swapper/320:08:485
2567599182cyclictest0-21swapper/323:33:015
2567599182cyclictest0-21swapper/322:50:405
2567599182cyclictest0-21swapper/322:38:055
2567599182cyclictest0-21swapper/322:00:145
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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