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2026-09-20 - 02:58
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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 Sun Sep 20, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
140852600,0sleep00-21swapper/020:15:270
42742448,8sleep00-21swapper/019:01:150
42752439,8sleep10-21swapper/119:01:161
4738993534,0cyclictest246650irq/16-enp2s0f021:22:120
4739993433,0cyclictest246650irq/16-enp2s0f023:16:501
4739993433,0cyclictest168750irq/16-i91521:08:321
4739993433,0cyclictest168750irq/16-i91519:47:281
4738993433,0cyclictest246650irq/16-enp2s0f023:30:110
4738993433,0cyclictest246650irq/16-enp2s0f022:09:170
4738993432,1cyclictest246650irq/16-enp2s0f023:38:570
4738993432,1cyclictest246650irq/16-enp2s0f023:31:550
4738993432,1cyclictest246650irq/16-enp2s0f023:05:460
4738993432,1cyclictest246650irq/16-enp2s0f020:35:270
4738993432,1cyclictest246650irq/16-enp2s0f019:41:180
4739993332,0cyclictest246650irq/16-enp2s0f023:32:441
4739993332,0cyclictest246650irq/16-enp2s0f023:12:091
4739993332,0cyclictest246650irq/16-enp2s0f022:42:471
4739993332,0cyclictest246650irq/16-enp2s0f022:32:441
4739993332,0cyclictest246650irq/16-enp2s0f021:36:081
4739993332,0cyclictest246650irq/16-enp2s0f021:14:401
4739993332,0cyclictest246650irq/16-enp2s0f000:14:571
4739993332,0cyclictest168750irq/16-i91523:39:491
4739993332,0cyclictest168750irq/16-i91523:01:081
4739993332,0cyclictest168750irq/16-i91522:54:061
4739993332,0cyclictest168750irq/16-i91522:26:261
4739993332,0cyclictest168750irq/16-i91522:18:481
4739993332,0cyclictest168750irq/16-i91522:18:481
4739993332,0cyclictest168750irq/16-i91522:10:401
4739993332,0cyclictest168750irq/16-i91522:05:391
4739993332,0cyclictest168750irq/16-i91521:58:061
4739993332,0cyclictest168750irq/16-i91521:51:361
4739993332,0cyclictest168750irq/16-i91521:41:461
4739993332,0cyclictest168750irq/16-i91521:15:391
4739993332,0cyclictest168750irq/16-i91521:03:401
4739993332,0cyclictest168750irq/16-i91520:59:171
4739993332,0cyclictest168750irq/16-i91520:32:421
4739993332,0cyclictest168750irq/16-i91520:16:561
4739993332,0cyclictest168750irq/16-i91520:15:201
4739993332,0cyclictest168750irq/16-i91519:41:051
4739993332,0cyclictest168750irq/16-i91519:15:441
4739993332,0cyclictest168750irq/16-i91519:08:581
4739993332,0cyclictest168750irq/16-i91500:30:421
4739993332,0cyclictest168750irq/16-i91500:06:121
4739993332,0cyclictest168750irq/16-i91500:05:081
4739993331,0cyclictest168750irq/16-i91520:30:101
4738993333,0cyclictest246650irq/16-enp2s0f023:12:590
4738993333,0cyclictest246650irq/16-enp2s0f020:46:260
4738993332,0cyclictest246650irq/16-enp2s0f023:01:020
4738993332,0cyclictest246650irq/16-enp2s0f022:40:380
4738993332,0cyclictest246650irq/16-enp2s0f022:30:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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