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2024-07-21 - 00:56
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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 Fri Jul 19, 2024 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16462650,1sleep1221ktimersoftd/107:44:571
2231024817,23sleep00-21swapper/007:05:370
214062378,8sleep10-21swapper/107:04:401
22758993534,0cyclictest255950irq/16-enp2s0f011:28:350
22759993433,0cyclictest255950irq/16-enp2s0f010:24:461
22758993434,0cyclictest255950irq/16-enp2s0f009:58:470
22758993433,0cyclictest255950irq/16-enp2s0f012:31:590
22758993433,0cyclictest255950irq/16-enp2s0f012:04:470
22758993433,0cyclictest255950irq/16-enp2s0f010:19:470
22758993433,0cyclictest255950irq/16-enp2s0f009:14:500
22758993432,1cyclictest255950irq/16-enp2s0f012:34:460
22758993432,1cyclictest255950irq/16-enp2s0f011:39:570
22758993432,1cyclictest255950irq/16-enp2s0f011:37:030
22758993432,1cyclictest255950irq/16-enp2s0f010:59:500
22758993432,1cyclictest255950irq/16-enp2s0f010:49:450
22758993432,1cyclictest255950irq/16-enp2s0f010:39:540
22758993432,1cyclictest255950irq/16-enp2s0f010:11:040
22758993432,1cyclictest255950irq/16-enp2s0f009:24:520
22758993432,1cyclictest255950irq/16-enp2s0f009:06:480
22758993432,1cyclictest255950irq/16-enp2s0f008:59:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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