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2026-08-23 - 11:14
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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 Aug 23, 2026 00:46:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501340irq/42-ahci0-21swapper/119:08:351
4919210992sleep110-21swapper/1119:05:063
30549501070irq/53-eth0-rx-0-21swapper/219:08:324
7737210291sleep40-21swapper/419:05:596
3054950950irq/53-eth0-rx-0-21swapper/519:07:317
3054950940irq/53-eth0-rx-0-21swapper/1019:06:242
12250940irq/42-ahci0-21swapper/819:08:4610
3054950930irq/53-eth0-rx-0-21swapper/319:08:585
3054950890irq/53-eth0-rx-0-21swapper/719:06:439
783528172sleep60-21swapper/619:07:138
171450780irq/56-eth1-rx-0-21swapper/919:09:5711
790625955sleep00-21swapper/019:08:060
8244993617cyclictest0-21swapper/1121:18:393
8211993214cyclictest0-21swapper/022:26:390
821199200cyclictest0-21swapper/021:44:560
824499190cyclictest0-21swapper/1122:18:363
824499190cyclictest0-21swapper/1121:08:533
824399192cyclictest3055050irq/54-eth0-tx-22:10:382
824399192cyclictest3054950irq/53-eth0-rx-23:44:522
824399192cyclictest3054950irq/53-eth0-rx-22:31:452
824399192cyclictest3054950irq/53-eth0-rx-22:19:402
824399192cyclictest3054950irq/53-eth0-rx-21:56:402
824399192cyclictest3054950irq/53-eth0-rx-21:36:442
824299192cyclictest3055050irq/54-eth0-tx-22:55:3811
824299192cyclictest0-21swapper/923:12:5911
824299192cyclictest0-21swapper/900:32:0611
824199195cyclictest0-21swapper/822:45:0010
824099195cyclictest0-21swapper/722:20:019
8211991910cyclictest0-21swapper/022:43:230
8243991817cyclictest0-21swapper/1022:58:382
8243991817cyclictest0-21swapper/1022:07:512
8243991817cyclictest0-21swapper/1022:07:512
8243991817cyclictest0-21swapper/1022:02:532
8243991817cyclictest0-21swapper/1021:50:042
8243991817cyclictest0-21swapper/1000:10:032
8243991817cyclictest0-21swapper/1000:10:032
8243991817cyclictest0-21swapper/1000:00:432
824399181cyclictest3055050irq/54-eth0-tx-23:11:162
824399181cyclictest3055050irq/54-eth0-tx-21:30:212
824399181cyclictest3054950irq/53-eth0-rx-23:55:252
824399181cyclictest3054950irq/53-eth0-rx-23:55:242
824399181cyclictest3054950irq/53-eth0-rx-23:53:172
824399181cyclictest3054950irq/53-eth0-rx-23:36:462
824399181cyclictest3054950irq/53-eth0-rx-23:30:482
824399181cyclictest3054950irq/53-eth0-rx-23:23:402
824399181cyclictest3054950irq/53-eth0-rx-23:17:142
824399181cyclictest3054950irq/53-eth0-rx-23:09:212
824399181cyclictest3054950irq/53-eth0-rx-23:02:512
824399181cyclictest3054950irq/53-eth0-rx-22:53:082
824399181cyclictest3054950irq/53-eth0-rx-22:45:242
824399181cyclictest3054950irq/53-eth0-rx-22:44:232
824399181cyclictest3054950irq/53-eth0-rx-22:20:592
824399181cyclictest3054950irq/53-eth0-rx-21:01:272
824399181cyclictest3054950irq/53-eth0-rx-21:01:262
824399181cyclictest3054950irq/53-eth0-rx-20:45:302
824399181cyclictest3054950irq/53-eth0-rx-19:44:442
824399181cyclictest3054950irq/53-eth0-rx-00:38:112
824399181cyclictest3054950irq/53-eth0-rx-00:34:072
824399181cyclictest3054950irq/53-eth0-rx-00:21:052
824399181cyclictest3054950irq/53-eth0-rx-00:19:352
824399181cyclictest3054950irq/53-eth0-rx-00:19:342
824399181cyclictest12250irq/42-ahci00:26:532
824299181cyclictest741rcuc/922:17:1211
824299181cyclictest741rcuc/919:32:1811
824299181cyclictest3054950irq/53-eth0-rx-00:35:4611
824299181cyclictest20259-21ps21:50:2111
824299181cyclictest19726-21ssh22:42:3811
824299181cyclictest0-21swapper/923:56:3611
824299181cyclictest0-21swapper/923:56:3511
824299181cyclictest0-21swapper/923:44:5911
824299181cyclictest0-21swapper/923:38:5911
824299181cyclictest0-21swapper/923:30:0911
824299181cyclictest0-21swapper/923:23:1811
824299181cyclictest0-21swapper/923:18:2511
824299181cyclictest0-21swapper/922:46:0111
824299181cyclictest0-21swapper/922:38:5911
824299181cyclictest0-21swapper/922:20:1411
824299181cyclictest0-21swapper/922:10:1211
824299181cyclictest0-21swapper/922:07:0711
824299181cyclictest0-21swapper/922:07:0711
824299181cyclictest0-21swapper/921:55:0411
824299181cyclictest0-21swapper/921:47:3111
824299181cyclictest0-21swapper/921:40:2711
824299181cyclictest0-21swapper/921:26:0911
824299181cyclictest0-21swapper/921:21:0711
824299181cyclictest0-21swapper/900:11:4611
824299181cyclictest0-21swapper/900:11:4611
824299181cyclictest0-21swapper/900:08:2411
824299181cyclictest0-21swapper/900:08:2311
824199184cyclictest0-21swapper/822:25:1110
823999187cyclictest0-21swapper/623:10:008
821199189cyclictest3054950irq/53-eth0-rx-22:20:450
821199189cyclictest1015-21nscd22:16:080
821199189cyclictest0-21swapper/022:11:200
821199180cyclictest0-21swapper/023:45:220
821199180cyclictest0-21swapper/023:45:210
821199180cyclictest0-21swapper/020:10:210
824499170cyclictest0-21swapper/1122:20:003
824499170cyclictest0-21swapper/1122:11:483
824499170cyclictest0-21swapper/1119:11:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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