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2025-12-11 - 04:09
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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
Characteristics of the 50 highest latencies:
System rack6slot2.osadl.org (updated Thu Dec 11, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278012610,0sleep10-21swapper/122:12:001
144952560,0sleep00-21swapper/021:27:020
32442488,8sleep00-21swapper/018:58:460
3603993931,7cyclictest245950irq/16-enp2s0f019:22:050
35302379,21sleep10-21swapper/119:01:421
3603993533,1cyclictest245950irq/16-enp2s0f023:37:010
3603993531,0cyclictest167950irq/16-i91522:47:320
3604993433,0cyclictest167950irq/16-i91521:43:041
3604993433,0cyclictest167950irq/16-i91521:02:231
3604993432,1cyclictest167950irq/16-i91523:47:131
3604993432,1cyclictest167950irq/16-i91523:22:031
3604993432,1cyclictest167950irq/16-i91523:11:011
3604993432,1cyclictest167950irq/16-i91521:32:011
3604993432,1cyclictest167950irq/16-i91520:56:591
3604993432,1cyclictest167950irq/16-i91519:12:061
3603993433,0cyclictest245950irq/16-enp2s0f022:55:430
3603993433,0cyclictest245950irq/16-enp2s0f020:52:020
3603993433,0cyclictest245950irq/16-enp2s0f020:31:470
3603993433,0cyclictest245950irq/16-enp2s0f000:27:120
3603993432,1cyclictest245950irq/16-enp2s0f023:02:010
3603993432,1cyclictest245950irq/16-enp2s0f022:32:050
3603993432,1cyclictest245950irq/16-enp2s0f022:09:540
3603993432,1cyclictest245950irq/16-enp2s0f021:42:020
3603993432,1cyclictest245950irq/16-enp2s0f021:35:420
3603993432,1cyclictest245950irq/16-enp2s0f020:47:080
3603993432,1cyclictest245950irq/16-enp2s0f020:17:100
3603993432,1cyclictest245950irq/16-enp2s0f019:07:050
3604993333,0cyclictest167950irq/16-i91523:30:551
3604993332,0cyclictest245950irq/16-enp2s0f023:02:001
3604993332,0cyclictest245950irq/16-enp2s0f020:32:591
3604993332,0cyclictest245950irq/16-enp2s0f019:31:581
3604993332,0cyclictest185550irq/16-nvkm23:14:001
3604993332,0cyclictest167950irq/16-i91523:56:071
3604993332,0cyclictest167950irq/16-i91523:43:111
3604993332,0cyclictest167950irq/16-i91523:21:031
3604993332,0cyclictest167950irq/16-i91523:00:311
3604993332,0cyclictest167950irq/16-i91522:44:111
3604993332,0cyclictest167950irq/16-i91522:40:551
3604993332,0cyclictest167950irq/16-i91522:32:121
3604993332,0cyclictest167950irq/16-i91522:27:541
3604993332,0cyclictest167950irq/16-i91522:16:541
3604993332,0cyclictest167950irq/16-i91522:07:031
3604993332,0cyclictest167950irq/16-i91521:52:161
3604993332,0cyclictest167950irq/16-i91521:17:021
3604993332,0cyclictest167950irq/16-i91521:10:091
3604993332,0cyclictest167950irq/16-i91520:51:591
3604993332,0cyclictest167950irq/16-i91520:36:571
3604993332,0cyclictest167950irq/16-i91520:30:311
3604993332,0cyclictest167950irq/16-i91520:20:291
3604993332,0cyclictest167950irq/16-i91520:12:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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