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2026-03-30 - 09:58
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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 Mar 30, 2026 00:46:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27751210997sleep100-21swapper/1019:08:012
27636210391sleep60-21swapper/619:06:318
9918501010irq/53-eth0-rx-0-21swapper/219:09:514
27560210189sleep90-21swapper/919:05:3511
128501000irq/42-ahci0-21swapper/319:09:185
991850980irq/53-eth0-rx-0-21swapper/819:07:1110
991850970irq/53-eth0-rx-0-21swapper/419:08:026
991850970irq/53-eth0-rx-0-21swapper/119:05:121
991850940irq/53-eth0-rx-0-21swapper/519:05:477
991850920irq/53-eth0-rx-0-21swapper/719:08:039
991850920irq/53-eth0-rx-0-21swapper/1119:07:033
2763026653sleep00-21swapper/019:06:250
2806899450cyclictest0-21swapper/021:17:540
2810399300cyclictest0-21swapper/1121:18:063
991950280irq/54-eth0-tx-0-21swapper/321:17:565
991850280irq/53-eth0-rx-0-21swapper/1021:18:002
28096992416cyclictest19784-21qemu-kvm21:08:457
991850230irq/53-eth0-rx-0-21swapper/121:17:551
2810399201cyclictest0-21swapper/1122:26:073
2810199192cyclictest991850irq/53-eth0-rx-00:05:312
2810099192cyclictest0-21swapper/919:20:1111
2810099192cyclictest0-21swapper/900:00:1511
28068991917cyclictest31456-21chrt19:12:010
28101991817cyclictest0-21swapper/1023:30:282
28101991817cyclictest0-21swapper/1022:05:512
28101991817cyclictest0-21swapper/1021:06:362
28101991817cyclictest0-21swapper/1000:37:112
2810199181cyclictest991950irq/54-eth0-tx-22:24:062
2810199181cyclictest991950irq/54-eth0-tx-21:24:112
2810199181cyclictest991850irq/53-eth0-rx-23:42:132
2810199181cyclictest991850irq/53-eth0-rx-23:27:002
2810199181cyclictest991850irq/53-eth0-rx-22:46:082
2810199181cyclictest991850irq/53-eth0-rx-21:43:132
2810199181cyclictest991850irq/53-eth0-rx-00:34:072
2810199181cyclictest991850irq/53-eth0-rx-00:17:452
2810199181cyclictest116232chrt20:55:232
2810099181cyclictest761ksoftirqd/923:53:1211
2810099181cyclictest761ksoftirqd/923:35:1211
2810099181cyclictest761ksoftirqd/923:10:1511
2810099181cyclictest761ksoftirqd/923:10:1511
2810099181cyclictest761ksoftirqd/922:05:2511
2810099181cyclictest761ksoftirqd/921:45:4311
2810099181cyclictest761ksoftirqd/921:15:2811
2810099181cyclictest761ksoftirqd/920:30:1311
2810099181cyclictest761ksoftirqd/920:10:0211
2810099181cyclictest761ksoftirqd/919:30:0211
2810099181cyclictest7565-21entropy21:25:1711
2810099181cyclictest7446-21kworker/9:200:34:4811
2810099181cyclictest741rcuc/922:01:3211
2810099181cyclictest6719-21ssh22:15:4911
2810099181cyclictest32113-21python22:10:2411
2810099181cyclictest29832-21ssh21:43:3511
2810099181cyclictest29526-21snmp_rack3slot919:51:3511
2810099181cyclictest28559-21snmp_rack3slot920:35:1411
2810099181cyclictest2840-21snmp_rack3slot920:45:1211
2810099181cyclictest2405-21snmp_rack3slot923:31:3711
2810099181cyclictest20541-21ssh21:10:0911
2810099181cyclictest18211-21munin-node21:05:1711
2810099181cyclictest16371-21snmp_rack3slot922:25:1111
2810099181cyclictest13994-21sed20:15:1611
2810099181cyclictest13994-21sed20:15:1511
2810099181cyclictest0-21swapper/923:45:5211
2810099181cyclictest0-21swapper/923:43:4311
2810099181cyclictest0-21swapper/923:26:1511
2810099181cyclictest0-21swapper/923:21:1311
2810099181cyclictest0-21swapper/923:15:1111
2810099181cyclictest0-21swapper/923:01:5511
2810099181cyclictest0-21swapper/922:55:3011
2810099181cyclictest0-21swapper/922:51:0211
2810099181cyclictest0-21swapper/922:38:5311
2810099181cyclictest0-21swapper/922:34:0611
2810099181cyclictest0-21swapper/922:20:0211
2810099181cyclictest0-21swapper/921:58:1111
2810099181cyclictest0-21swapper/921:50:2911
2810099181cyclictest0-21swapper/921:35:2111
2810099181cyclictest0-21swapper/921:30:0611
2810099181cyclictest0-21swapper/921:20:0911
2810099181cyclictest0-21swapper/920:27:5711
2810099181cyclictest0-21swapper/920:22:4811
2810099181cyclictest0-21swapper/920:22:4711
2810099181cyclictest0-21swapper/920:07:0711
2810099181cyclictest0-21swapper/920:04:0911
2810099181cyclictest0-21swapper/919:10:1111
2810099181cyclictest0-21swapper/900:20:2911
2810099181cyclictest0-21swapper/900:19:3611
2810099181cyclictest0-21swapper/900:10:2211
2810099181cyclictest0-21swapper/900:08:5711
28103991716cyclictest991850irq/53-eth0-rx-20:26:403
28101991716cyclictest0-21swapper/1023:48:392
28101991716cyclictest0-21swapper/1020:25:182
28101991715cyclictest5265-21ssh22:15:182
28101991715cyclictest14518-21ssh21:56:072
2810199170cyclictest991950irq/54-eth0-tx-22:55:332
2810199170cyclictest991850irq/53-eth0-rx-23:55:392
2810199170cyclictest991850irq/53-eth0-rx-23:50:132
2810199170cyclictest991850irq/53-eth0-rx-23:36:252
2810199170cyclictest991850irq/53-eth0-rx-23:10:572
2810199170cyclictest991850irq/53-eth0-rx-23:10:572
2810199170cyclictest991850irq/53-eth0-rx-23:07:122
2810199170cyclictest991850irq/53-eth0-rx-23:07:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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