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2025-10-31 - 02:14
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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
Characteristics of the 20 highest latencies:
System rack6slot2.osadl.org (updated Thu Oct 30, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
718924420,17sleep10-21swapper/106:59:361
695724015,18sleep00-21swapper/006:58:010
7546993534,0cyclictest245950irq/16-enp2s0f012:14:380
7547993433,0cyclictest167950irq/16-i91508:48:271
7547993432,1cyclictest167950irq/16-i91509:32:491
7547993432,1cyclictest167950irq/16-i91508:37:551
7546993433,0cyclictest245950irq/16-enp2s0f012:10:400
7546993433,0cyclictest245950irq/16-enp2s0f009:32:560
7546993432,1cyclictest245950irq/16-enp2s0f012:18:070
7546993432,1cyclictest245950irq/16-enp2s0f011:52:540
7546993432,1cyclictest245950irq/16-enp2s0f011:32:540
7546993432,1cyclictest245950irq/16-enp2s0f010:57:520
7546993432,1cyclictest245950irq/16-enp2s0f010:46:000
7546993432,1cyclictest245950irq/16-enp2s0f009:42:510
7546993432,1cyclictest245950irq/16-enp2s0f009:12:480
7546993432,1cyclictest245950irq/16-enp2s0f008:52:560
7546993432,1cyclictest245950irq/16-enp2s0f008:37:550
7546993432,1cyclictest245950irq/16-enp2s0f007:57:510
7546993432,1cyclictest245950irq/16-enp2s0f007:52:500
7546993432,1cyclictest245950irq/16-enp2s0f007:32:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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