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2025-11-30 - 12:28
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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 Sun Nov 30, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
210662468,8sleep00-21swapper/018:58:480
213512378,8sleep10-21swapper/119:01:411
21446993434,0cyclictest167950irq/16-i91523:39:501
21446993433,0cyclictest167950irq/16-i91523:06:041
21446993432,1cyclictest167950irq/16-i91522:42:131
21446993432,1cyclictest167950irq/16-i91521:57:331
21446993432,1cyclictest167950irq/16-i91521:16:411
21446993432,1cyclictest167950irq/16-i91519:12:141
21446993432,1cyclictest167950irq/16-i91500:17:191
21445993433,0cyclictest245950irq/16-enp2s0f023:46:340
21445993433,0cyclictest245950irq/16-enp2s0f023:39:500
21445993433,0cyclictest245950irq/16-enp2s0f019:43:570
21445993432,1cyclictest245950irq/16-enp2s0f023:57:150
21445993432,1cyclictest245950irq/16-enp2s0f023:55:570
21445993432,1cyclictest245950irq/16-enp2s0f019:06:360
21445993432,1cyclictest245950irq/16-enp2s0f000:17:190
21446993332,0cyclictest245950irq/16-enp2s0f021:41:331
21446993332,0cyclictest245950irq/16-enp2s0f021:23:331
21446993332,0cyclictest167950irq/16-i91523:57:331
21446993332,0cyclictest167950irq/16-i91523:52:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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