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2026-04-20 - 06:45
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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 Mon Apr 20, 2026 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9918501090irq/53-eth0-rx-0-21swapper/219:09:014
18596210793sleep80-21swapper/819:05:3310
9918501060irq/53-eth0-rx-0-21swapper/119:08:461
991850950irq/53-eth0-rx-0-21swapper/519:05:257
12850920irq/42-ahci0-21swapper/319:08:465
991850910irq/53-eth0-rx-0-21swapper/719:08:109
991850850irq/53-eth0-rx-0-21swapper/1119:06:013
991850790irq/53-eth0-rx-0-21swapper/1019:06:462
1894827371sleep40-21swapper/419:09:306
172450710irq/56-eth1-rx-0-21swapper/919:09:1711
1877826253sleep60-21swapper/619:07:568
1651125955sleep00-21swapper/019:05:130
19125993528cyclictest991850irq/53-eth0-rx-20:11:086
1909899330cyclictest0-21swapper/020:11:160
1909899330cyclictest0-21swapper/019:28:520
1909899330cyclictest0-21swapper/019:28:510
19132993129cyclictest123922sleep1122:29:233
19132993129cyclictest123922sleep1122:29:233
1913299310cyclictest0-21swapper/1121:23:203
19112993029cyclictest12850irq/42-ahci20:11:081
19128992827cyclictest12850irq/42-ahci20:11:079
19126992423cyclictest31708-21qemu-kvm20:11:217
19131992316cyclictest0-21swapper/1023:36:492
19131992315cyclictest0-21swapper/1023:03:302
19129992322cyclictest991850irq/53-eth0-rx-20:11:1510
19131992215cyclictest991850irq/53-eth0-rx-20:11:062
19131992215cyclictest8839-21ssh00:35:572
19131992214cyclictest16594-21diskmemload23:50:182
19131992214cyclictest0-21swapper/1023:33:002
19131992214cyclictest0-21swapper/1019:12:092
19131992116cyclictest0-21swapper/1023:57:332
19131992116cyclictest0-21swapper/1021:47:482
19131992116cyclictest0-21swapper/1020:47:462
19131992115cyclictest32465-21kworker/10:122:41:322
19131992115cyclictest32465-21kworker/10:122:41:322
19131992115cyclictest19611-1kworker/10:2H21:00:192
19131992115cyclictest0-21swapper/1021:54:052
19131992114cyclictest32465-21kworker/10:122:58:052
19131992114cyclictest20548-21ssh21:42:462
19131992114cyclictest0-21swapper/1021:35:172
1913299200cyclictest0-21swapper/1120:15:563
19131992014cyclictest31561-21munin-node20:06:492
19131992013cyclictest0-21swapper/1023:47:192
1913199192cyclictest991850irq/53-eth0-rx-23:21:332
1913199192cyclictest991850irq/53-eth0-rx-23:15:482
1913199192cyclictest991850irq/53-eth0-rx-22:46:512
1913199192cyclictest991850irq/53-eth0-rx-22:37:252
1913199192cyclictest991850irq/53-eth0-rx-22:11:292
1913199192cyclictest991850irq/53-eth0-rx-21:57:212
1913199192cyclictest991850irq/53-eth0-rx-21:21:002
1913199192cyclictest991850irq/53-eth0-rx-00:31:452
1913099192cyclictest0-21swapper/922:21:3111
1913099192cyclictest0-21swapper/900:07:0311
19131991817cyclictest0-21swapper/1000:06:392
19131991813cyclictest0-21swapper/1023:40:492
1913199181cyclictest991950irq/54-eth0-tx-00:24:192
1913199181cyclictest991850irq/53-eth0-rx-22:33:012
1913199181cyclictest991850irq/53-eth0-rx-22:25:052
1913199181cyclictest991850irq/53-eth0-rx-22:25:042
1913199181cyclictest991850irq/53-eth0-rx-22:06:072
1913199181cyclictest991850irq/53-eth0-rx-22:06:072
1913199181cyclictest991850irq/53-eth0-rx-22:02:542
1913199181cyclictest991850irq/53-eth0-rx-21:25:552
1913199181cyclictest991850irq/53-eth0-rx-21:17:272
1913199181cyclictest991850irq/53-eth0-rx-21:12:442
1913199181cyclictest991850irq/53-eth0-rx-00:17:312
1913199181cyclictest991850irq/53-eth0-rx-00:04:192
1913199181cyclictest201532sleep1020:35:212
1913199181cyclictest12850irq/42-ahci22:21:422
1913199181cyclictest12850irq/42-ahci19:38:472
1913199181cyclictest12850irq/42-ahci00:10:542
1913099181cyclictest991850irq/53-eth0-rx-21:30:5811
1913099181cyclictest0-21swapper/922:56:0411
1913099181cyclictest0-21swapper/922:46:3811
1913099181cyclictest0-21swapper/922:26:0811
1913099181cyclictest0-21swapper/922:26:0811
1913099181cyclictest0-21swapper/921:23:4911
1913099181cyclictest0-21swapper/921:20:0111
1913099181cyclictest0-21swapper/900:25:1711
1913099181cyclictest0-21swapper/900:23:5411
1913099181cyclictest0-21swapper/900:16:3011
19127991816cyclictest31714-21qemu-kvm20:27:008
19127991816cyclictest31714-21qemu-kvm20:15:148
19127991816cyclictest31713-21qemu-kvm20:10:138
14050180irq/18-ehci_hcd0-21swapper/023:05:210
19132991716cyclictest991850irq/53-eth0-rx-19:14:003
1913199170cyclictest991850irq/53-eth0-rx-23:25:082
1913199170cyclictest991850irq/53-eth0-rx-23:10:342
1913199170cyclictest991850irq/53-eth0-rx-23:05:152
1913199170cyclictest991850irq/53-eth0-rx-22:50:422
1913199170cyclictest991850irq/53-eth0-rx-22:16:022
1913199170cyclictest991850irq/53-eth0-rx-21:30:032
1913199170cyclictest991850irq/53-eth0-rx-20:44:432
1913199170cyclictest991850irq/53-eth0-rx-20:31:012
1913199170cyclictest991850irq/53-eth0-rx-19:56:102
1913199170cyclictest991850irq/53-eth0-rx-19:41:322
1913199170cyclictest991850irq/53-eth0-rx-19:41:322
1913199170cyclictest991850irq/53-eth0-rx-19:25:052
1913199170cyclictest991850irq/53-eth0-rx-19:25:052
1913199170cyclictest991850irq/53-eth0-rx-19:20:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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