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2026-04-08 - 22:42
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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 Wed Apr 08, 2026 12:46:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17164210995sleep80-21swapper/807:06:5510
9918501070irq/53-eth0-rx-0-21swapper/107:09:561
17146210391sleep50-21swapper/507:06:407
17195210191sleep110-21swapper/1107:07:223
991850970irq/53-eth0-rx-0-21swapper/207:09:144
12850950irq/42-ahci0-21swapper/407:05:236
991850940irq/53-eth0-rx-0-21swapper/1007:07:442
1744329488sleep70-21swapper/707:09:559
991850930irq/53-eth0-rx-0-21swapper/307:06:535
1722827566sleep90-21swapper/907:07:4411
1721926054sleep00-21swapper/007:07:360
1704725955sleep60-21swapper/607:05:298
17587993718cyclictest0-21swapper/1110:08:453
1758799310cyclictest0-21swapper/1107:28:083
17587993014cyclictest0-21swapper/1108:22:433
17587992914cyclictest0-21swapper/1110:20:003
17587992914cyclictest0-21swapper/1110:19:553
17569992914cyclictest0-21swapper/010:19:540
17569992625cyclictest0-21swapper/008:24:480
1758799220cyclictest0-21swapper/1109:13:243
17582992019cyclictest30144-21qemu-kvm08:24:468
1758699192cyclictest991850irq/53-eth0-rx-11:54:002
1758699192cyclictest991850irq/53-eth0-rx-11:48:362
1758699192cyclictest991850irq/53-eth0-rx-11:48:352
1758699192cyclictest991850irq/53-eth0-rx-10:55:542
1758699192cyclictest991850irq/53-eth0-rx-10:50:022
1758699192cyclictest991850irq/53-eth0-rx-09:49:142
17586991817cyclictest21506-21snmp_rack3slot912:21:112
17586991817cyclictest0-21swapper/1012:27:462
17586991817cyclictest0-21swapper/1011:40:132
17586991817cyclictest0-21swapper/1011:40:132
17586991817cyclictest0-21swapper/1011:29:362
17586991817cyclictest0-21swapper/1011:29:362
17586991817cyclictest0-21swapper/1011:21:102
17586991817cyclictest0-21swapper/1010:37:212
17586991817cyclictest0-21swapper/1009:42:022
17586991817cyclictest0-21swapper/1009:29:042
17586991817cyclictest0-21swapper/1009:12:292
17586991817cyclictest0-21swapper/1008:26:352
17586991816cyclictest30986-21ssh09:52:042
1758699181cyclictest991950irq/54-eth0-tx-11:57:402
1758699181cyclictest991950irq/54-eth0-tx-11:32:372
1758699181cyclictest991950irq/54-eth0-tx-11:32:362
1758699181cyclictest991950irq/54-eth0-tx-10:09:202
1758699181cyclictest991850irq/53-eth0-rx-12:39:122
1758699181cyclictest991850irq/53-eth0-rx-12:33:412
1758699181cyclictest991850irq/53-eth0-rx-12:18:432
1758699181cyclictest991850irq/53-eth0-rx-12:08:282
1758699181cyclictest991850irq/53-eth0-rx-11:38:202
1758699181cyclictest991850irq/53-eth0-rx-11:16:362
1758699181cyclictest991850irq/53-eth0-rx-11:13:002
1758699181cyclictest991850irq/53-eth0-rx-11:09:342
1758699181cyclictest991850irq/53-eth0-rx-10:44:382
1758699181cyclictest991850irq/53-eth0-rx-10:34:312
1758699181cyclictest991850irq/53-eth0-rx-10:18:482
1758699181cyclictest991850irq/53-eth0-rx-10:12:152
1758699181cyclictest991850irq/53-eth0-rx-10:00:462
1758699181cyclictest991850irq/53-eth0-rx-09:59:242
1758699181cyclictest991850irq/53-eth0-rx-09:21:002
1758699181cyclictest991850irq/53-eth0-rx-09:15:212
1758699181cyclictest12850irq/42-ahci11:01:122
1758699181cyclictest12850irq/42-ahci07:47:262
1758699181cyclictest12850irq/42-ahci07:22:162
1758599181cyclictest0-21swapper/912:28:0911
1758599181cyclictest0-21swapper/912:13:2611
1758599181cyclictest0-21swapper/911:28:1011
1758599181cyclictest0-21swapper/911:28:1011
1758599181cyclictest0-21swapper/911:15:0511
1758599181cyclictest0-21swapper/911:00:1711
1758599181cyclictest0-21swapper/910:34:1511
1758599181cyclictest0-21swapper/910:25:1711
1758599181cyclictest0-21swapper/910:17:5711
1758599181cyclictest0-21swapper/909:31:0011
1758599181cyclictest0-21swapper/908:32:5111
1758599181cyclictest0-21swapper/907:15:2611
17582991816cyclictest16134-21snmp_rack3slot909:40:158
17581991816cyclictest17880-21qemu-kvm10:45:137
17581991816cyclictest1549-21ssh11:14:117
1756999180cyclictest0-21swapper/009:13:090
17587991715cyclictest0-21swapper/1109:30:433
17586991716cyclictest0-21swapper/1007:50:032
17586991715cyclictest24772-21munin-node07:15:232
17586991715cyclictest22611-21snmp_rack3slot907:55:582
17586991715cyclictest21642-21snmp_rack3slot908:40:132
1758699170cyclictest991850irq/53-eth0-rx-12:10:322
1758699170cyclictest991850irq/53-eth0-rx-12:00:562
1758699170cyclictest991850irq/53-eth0-rx-10:45:382
1758699170cyclictest991850irq/53-eth0-rx-10:20:022
1758699170cyclictest991850irq/53-eth0-rx-09:35:052
1758699170cyclictest991850irq/53-eth0-rx-09:30:462
1758699170cyclictest991850irq/53-eth0-rx-09:00:192
1758699170cyclictest991850irq/53-eth0-rx-08:55:502
1758699170cyclictest991850irq/53-eth0-rx-08:20:142
1758699170cyclictest991850irq/53-eth0-rx-08:00:142
1758699170cyclictest991850irq/53-eth0-rx-07:35:172
1758699170cyclictest991850irq/53-eth0-rx-07:25:382
1758699170cyclictest991850irq/53-eth0-rx-07:10:202
1758699170cyclictest84312sleep1009:05:222
1758699170cyclictest56602sleep1010:25:072
1758699170cyclictest50712sleep1008:17:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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