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2026-03-16 - 02:46
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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 16, 2026 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9918501130irq/53-eth0-rx-0-21swapper/119:09:591
128501080irq/42-ahci0-21swapper/219:08:284
991850930irq/53-eth0-rx-0-21swapper/719:09:119
991850930irq/53-eth0-rx-0-21swapper/319:07:185
12850930irq/42-ahci0-21swapper/819:08:2710
991850920irq/53-eth0-rx-0-21swapper/519:07:407
991850920irq/53-eth0-rx-0-21swapper/419:05:196
54727571sleep90-21swapper/919:09:1911
991850700irq/53-eth0-rx-0-21swapper/1019:05:542
3274626553sleep60-21swapper/619:06:278
3269226055sleep00-21swapper/019:05:450
31725955sleep110-21swapper/1119:06:563
75299310cyclictest0-21swapper/1121:27:233
752992928cyclictest991850irq/53-eth0-rx-20:09:563
752992928cyclictest991850irq/53-eth0-rx-20:09:553
718992725cyclictest0-21swapper/019:13:210
718992714cyclictest0-21swapper/021:29:210
737992013cyclictest2308-21snmpd21:30:264
737992011cyclictest2308-21snmpd22:24:264
75199192cyclictest991850irq/53-eth0-rx-23:00:432
75199192cyclictest991850irq/53-eth0-rx-22:21:282
75199192cyclictest991850irq/53-eth0-rx-21:55:242
75199192cyclictest991850irq/53-eth0-rx-00:31:512
751991918cyclictest991950irq/54-eth0-tx-00:05:152
75099192cyclictest0-21swapper/923:39:2511
75099192cyclictest0-21swapper/923:39:2511
75099192cyclictest0-21swapper/923:06:0811
75099192cyclictest0-21swapper/923:06:0711
75099192cyclictest0-21swapper/922:46:2311
75099192cyclictest0-21swapper/921:50:5311
75099192cyclictest0-21swapper/900:14:0211
75099192cyclictest0-21swapper/900:00:4411
74799190cyclictest8804-21diskmemload21:20:538
74799190cyclictest7652-21diskmemload22:14:208
718991912cyclictest0-21swapper/019:30:020
71899190cyclictest0-21swapper/020:21:320
71899190cyclictest0-21swapper/019:17:220
751991817cyclictest0-21swapper/1023:56:092
751991817cyclictest0-21swapper/1022:17:492
751991817cyclictest0-21swapper/1000:15:192
751991817cyclictest0-21swapper/1000:11:022
751991816cyclictest7104-21kworker/10:023:30:102
751991816cyclictest3896-21ssh21:18:032
751991816cyclictest10687-21ssh22:41:452
75199181cyclictest991950irq/54-eth0-tx-23:35:542
75199181cyclictest991950irq/54-eth0-tx-23:35:542
75199181cyclictest991950irq/54-eth0-tx-23:19:032
75199181cyclictest991950irq/54-eth0-tx-22:58:172
75199181cyclictest991950irq/54-eth0-tx-22:30:512
75199181cyclictest991950irq/54-eth0-tx-21:31:372
75199181cyclictest991850irq/53-eth0-rx-23:51:532
75199181cyclictest991850irq/53-eth0-rx-23:51:522
75199181cyclictest991850irq/53-eth0-rx-23:22:292
75199181cyclictest991850irq/53-eth0-rx-23:05:272
75199181cyclictest991850irq/53-eth0-rx-23:05:262
75199181cyclictest991850irq/53-eth0-rx-22:35:232
75199181cyclictest991850irq/53-eth0-rx-22:29:132
75199181cyclictest991850irq/53-eth0-rx-22:00:562
75199181cyclictest991850irq/53-eth0-rx-21:54:592
75199181cyclictest991850irq/53-eth0-rx-21:35:282
75199181cyclictest991850irq/53-eth0-rx-21:26:022
75199181cyclictest991850irq/53-eth0-rx-21:11:432
75199181cyclictest991850irq/53-eth0-rx-20:15:092
75199181cyclictest991850irq/53-eth0-rx-20:15:082
75199181cyclictest991850irq/53-eth0-rx-00:36:392
75199181cyclictest991850irq/53-eth0-rx-00:28:392
75199181cyclictest991850irq/53-eth0-rx-00:00:102
75199181cyclictest12850irq/42-ahci21:07:472
75099181cyclictest24012-21kworker/9:220:30:1511
75099181cyclictest0-21swapper/923:34:4011
75099181cyclictest0-21swapper/923:16:5611
75099181cyclictest0-21swapper/922:58:3011
75099181cyclictest0-21swapper/922:39:2211
75099181cyclictest0-21swapper/921:41:0511
75099181cyclictest0-21swapper/921:28:3511
75099181cyclictest0-21swapper/920:00:2111
747991816cyclictest705-21qemu-kvm22:28:478
747991816cyclictest704-21qemu-kvm22:08:438
747991811cyclictest29387-21munin-run23:25:018
73799180cyclictest0-21swapper/223:21:504
718991816cyclictest24026-21chrt22:25:430
75299170cyclictest0-21swapper/1122:19:223
751991716cyclictest0-21swapper/1019:10:222
751991715cyclictest29926-21ssh23:25:032
75199170cyclictest991950irq/54-eth0-tx-22:05:202
75199170cyclictest991950irq/54-eth0-tx-21:45:492
75199170cyclictest991950irq/54-eth0-tx-19:35:122
75199170cyclictest991950irq/54-eth0-tx-00:20:112
75199170cyclictest991850irq/53-eth0-rx-23:45:072
75199170cyclictest991850irq/53-eth0-rx-22:50:192
75199170cyclictest991850irq/53-eth0-rx-22:45:072
75199170cyclictest991850irq/53-eth0-rx-22:10:042
75199170cyclictest991850irq/53-eth0-rx-21:40:022
75199170cyclictest991850irq/53-eth0-rx-21:20:142
75199170cyclictest991850irq/53-eth0-rx-21:00:022
75199170cyclictest991850irq/53-eth0-rx-20:55:162
75199170cyclictest991850irq/53-eth0-rx-20:50:212
75199170cyclictest991850irq/53-eth0-rx-20:50:212
75199170cyclictest991850irq/53-eth0-rx-20:45:212
75199170cyclictest991850irq/53-eth0-rx-20:35:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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