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2026-04-27 - 07:50
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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 27, 2026 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128501140irq/42-ahci0-21swapper/119:09:171
128501130irq/42-ahci0-21swapper/219:09:284
9918501120irq/53-eth0-rx-0-21swapper/319:08:115
28352210290sleep50-21swapper/519:05:527
991850990irq/53-eth0-rx-0-21swapper/419:09:376
991850920irq/53-eth0-rx-0-21swapper/719:05:519
991850880irq/53-eth0-rx-0-21swapper/1119:05:353
115050870irq/18-i801_smb0-21swapper/819:09:1910
2843926553sleep90-21swapper/919:06:5611
2842126353sleep60-21swapper/619:06:408
2842525955sleep100-21swapper/1019:06:452
2833125955sleep00-21swapper/019:05:340
991950320irq/54-eth0-tx-0-21swapper/021:21:340
2887599290cyclictest356-21chrt22:13:193
28874992516cyclictest13723-1kworker/10:2H22:04:112
28874992417cyclictest0-21swapper/1021:33:382
28874992416cyclictest0-21swapper/1023:33:532
28874992416cyclictest0-21swapper/1023:02:082
28874992416cyclictest0-21swapper/1023:02:072
28874992416cyclictest0-21swapper/1021:36:352
28874992416cyclictest0-21swapper/1021:25:352
28874992416cyclictest0-21swapper/1000:24:452
28874992316cyclictest0-21swapper/1023:50:082
28874992316cyclictest0-21swapper/1023:22:172
28874992316cyclictest0-21swapper/1021:53:482
28874992316cyclictest0-21swapper/1021:15:172
28874992316cyclictest0-21swapper/1020:14:462
28874992315cyclictest0-21swapper/1021:46:082
28874992315cyclictest0-21swapper/1000:16:042
28874992216cyclictest0-21swapper/1023:43:452
28874992216cyclictest0-21swapper/1020:38:382
28874992215cyclictest0-21swapper/1022:08:262
28874992215cyclictest0-21swapper/1022:08:252
28874992115cyclictest0-21swapper/1023:55:352
28874992015cyclictest0-21swapper/1021:44:102
2883999200cyclictest0-21swapper/021:34:570
991950190irq/54-eth0-tx-0-21swapper/000:06:390
2887599194cyclictest0-21swapper/1121:18:043
2887599190cyclictest186272sleep1122:28:443
2887499192cyclictest991850irq/53-eth0-rx-23:46:082
2887499192cyclictest991850irq/53-eth0-rx-22:43:422
2887499192cyclictest991850irq/53-eth0-rx-22:20:102
2887499192cyclictest991850irq/53-eth0-rx-21:55:132
2887499192cyclictest991850irq/53-eth0-rx-21:13:592
2887499192cyclictest991850irq/53-eth0-rx-00:10:442
2887499192cyclictest12850irq/42-ahci00:30:422
28874991917cyclictest25333-21kworker/10:100:04:522
2883999190cyclictest0-21swapper/022:26:590
2883999190cyclictest0-21swapper/022:08:310
2883999190cyclictest0-21swapper/022:08:300
2883999190cyclictest0-21swapper/021:08:450
2883999190cyclictest0-21swapper/021:08:440
28875991817cyclictest991850irq/53-eth0-rx-22:15:583
2887599180cyclictest0-21swapper/1119:10:023
28874991817cyclictest0-21swapper/1023:35:232
28874991817cyclictest0-21swapper/1023:25:312
28874991817cyclictest0-21swapper/1022:25:022
2887499181cyclictest991850irq/53-eth0-rx-23:11:202
2887499181cyclictest991850irq/53-eth0-rx-23:05:572
2887499181cyclictest991850irq/53-eth0-rx-22:55:132
2887499181cyclictest991850irq/53-eth0-rx-22:55:132
2887499181cyclictest991850irq/53-eth0-rx-22:51:532
2887499181cyclictest991850irq/53-eth0-rx-22:45:362
2887499181cyclictest991850irq/53-eth0-rx-22:39:202
2887499181cyclictest991850irq/53-eth0-rx-22:31:352
2887499181cyclictest991850irq/53-eth0-rx-22:10:302
2887499181cyclictest991850irq/53-eth0-rx-21:20:262
2887499181cyclictest991850irq/53-eth0-rx-19:45:382
2887499181cyclictest991850irq/53-eth0-rx-00:37:002
2887499181cyclictest991850irq/53-eth0-rx-00:26:482
2887499181cyclictest991850irq/53-eth0-rx-00:08:262
2887499181cyclictest12850irq/42-ahci19:40:192
28839991816cyclictest0-21swapper/021:44:190
2883999180cyclictest0-21swapper/022:14:140
2883999180cyclictest0-21swapper/019:15:490
2883999180cyclictest0-21swapper/019:15:480
28874991716cyclictest13723-1kworker/10:2H21:05:122
28874991716cyclictest13723-1kworker/10:2H21:05:112
28874991716cyclictest0-21swapper/1020:00:202
2887499170cyclictest991850irq/53-eth0-rx-23:15:032
2887499170cyclictest991850irq/53-eth0-rx-22:15:292
2887499170cyclictest991850irq/53-eth0-rx-20:55:042
2887499170cyclictest991850irq/53-eth0-rx-20:50:322
2887499170cyclictest991850irq/53-eth0-rx-20:40:042
2887499170cyclictest991850irq/53-eth0-rx-20:25:412
2887499170cyclictest991850irq/53-eth0-rx-20:17:042
2887499170cyclictest991850irq/53-eth0-rx-20:17:032
2887499170cyclictest991850irq/53-eth0-rx-20:06:102
2887499170cyclictest991850irq/53-eth0-rx-19:55:142
2887499170cyclictest991850irq/53-eth0-rx-19:31:032
2887499170cyclictest991850irq/53-eth0-rx-19:25:082
2887499170cyclictest991850irq/53-eth0-rx-19:15:152
2887499170cyclictest991850irq/53-eth0-rx-19:15:152
2887499170cyclictest55472sleep1019:20:082
2887499170cyclictest293242sleep1019:10:072
2887499170cyclictest275012sleep1019:50:142
2887499170cyclictest272042sleep1020:31:182
2887499170cyclictest272042sleep1020:31:172
2887499170cyclictest184232sleep1020:20:172
2887499170cyclictest184232sleep1020:20:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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