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2025-12-07 - 12:30
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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 Dec 07, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1655724313,22sleep00-21swapper/019:00:290
165162439,8sleep10-21swapper/119:00:021
16755993636,0cyclictest245950irq/16-enp2s0f020:48:170
16756993433,0cyclictest245950irq/16-enp2s0f023:20:171
16756993432,1cyclictest245950irq/16-enp2s0f020:23:271
16755993434,0cyclictest245950irq/16-enp2s0f000:09:450
16755993433,0cyclictest245950irq/16-enp2s0f023:17:080
16755993433,0cyclictest245950irq/16-enp2s0f022:02:550
16755993433,0cyclictest167950irq/16-i91521:15:260
16755993432,1cyclictest245950irq/16-enp2s0f023:02:420
16755993432,1cyclictest245950irq/16-enp2s0f022:27:360
16755993432,1cyclictest245950irq/16-enp2s0f021:55:040
16755993432,1cyclictest245950irq/16-enp2s0f021:32:130
16755993432,1cyclictest245950irq/16-enp2s0f021:22:080
16755993432,1cyclictest245950irq/16-enp2s0f021:07:080
16755993432,1cyclictest245950irq/16-enp2s0f021:02:150
16755993432,1cyclictest245950irq/16-enp2s0f020:42:150
16755993432,1cyclictest245950irq/16-enp2s0f020:27:060
16755993432,1cyclictest245950irq/16-enp2s0f020:02:150
16755993432,1cyclictest245950irq/16-enp2s0f019:59:420
16755993432,1cyclictest245950irq/16-enp2s0f019:02:080
16755993432,1cyclictest245950irq/16-enp2s0f000:22:120
16755993430,0cyclictest167950irq/16-i91522:07:140
16755993430,0cyclictest167950irq/16-i91520:07:070
16756993333,0cyclictest167950irq/16-i91521:22:111
16756993332,0cyclictest245950irq/16-enp2s0f023:11:121
16756993332,0cyclictest245950irq/16-enp2s0f021:02:411
16756993332,0cyclictest245950irq/16-enp2s0f020:01:131
16756993332,0cyclictest221ktimersoftd/123:42:331
16756993332,0cyclictest221ktimersoftd/123:22:051
16756993332,0cyclictest221ktimersoftd/123:03:381
16756993332,0cyclictest221ktimersoftd/121:46:541
16756993332,0cyclictest221ktimersoftd/121:39:181
16756993332,0cyclictest221ktimersoftd/120:58:311
16756993332,0cyclictest221ktimersoftd/120:49:591
16756993332,0cyclictest221ktimersoftd/120:17:131
16756993332,0cyclictest221ktimersoftd/120:17:131
16756993332,0cyclictest221ktimersoftd/119:52:091
16756993332,0cyclictest221ktimersoftd/119:47:061
16756993332,0cyclictest221ktimersoftd/119:30:551
16756993332,0cyclictest221ktimersoftd/119:07:071
16756993332,0cyclictest221ktimersoftd/100:29:331
16756993332,0cyclictest167950irq/16-i91523:47:111
16756993332,0cyclictest167950irq/16-i91523:37:061
16756993332,0cyclictest167950irq/16-i91522:58:331
16756993332,0cyclictest167950irq/16-i91522:52:061
16756993332,0cyclictest167950irq/16-i91522:29:031
16756993332,0cyclictest167950irq/16-i91522:17:091
16756993332,0cyclictest167950irq/16-i91522:07:341
16756993332,0cyclictest167950irq/16-i91521:57:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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