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2025-12-12 - 05:08
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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 Fri Dec 12, 2025 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1960424813,8sleep10-21swapper/119:01:191
195362458,8sleep00-21swapper/019:00:380
19710993729,7cyclictest245950irq/16-enp2s0f019:17:030
19711993434,0cyclictest167950irq/16-i91523:07:121
19711993433,0cyclictest245950irq/16-enp2s0f019:48:541
19711993432,1cyclictest167950irq/16-i91523:12:071
19711993432,1cyclictest167950irq/16-i91523:02:311
19711993432,1cyclictest167950irq/16-i91520:22:001
19711993432,1cyclictest167950irq/16-i91500:02:131
19710993433,1cyclictest245950irq/16-enp2s0f022:45:540
19710993433,0cyclictest245950irq/16-enp2s0f021:13:430
19710993432,1cyclictest245950irq/16-enp2s0f023:52:090
19710993432,1cyclictest245950irq/16-enp2s0f022:07:070
19710993432,1cyclictest245950irq/16-enp2s0f021:52:040
19710993432,1cyclictest245950irq/16-enp2s0f020:57:070
19710993432,1cyclictest245950irq/16-enp2s0f020:17:020
19710993432,1cyclictest245950irq/16-enp2s0f020:17:020
19710993432,1cyclictest245950irq/16-enp2s0f019:57:040
19710993432,1cyclictest245950irq/16-enp2s0f019:32:010
19710993432,1cyclictest245950irq/16-enp2s0f019:02:050
19710993432,1cyclictest245950irq/16-enp2s0f000:20:360
19711993333,0cyclictest167950irq/16-i91519:59:411
19711993332,0cyclictest245950irq/16-enp2s0f021:30:531
19711993332,0cyclictest245950irq/16-enp2s0f019:17:471
19711993332,0cyclictest167950irq/16-i91523:51:481
19711993332,0cyclictest167950irq/16-i91523:42:031
19711993332,0cyclictest167950irq/16-i91523:41:071
19711993332,0cyclictest167950irq/16-i91523:32:061
19711993332,0cyclictest167950irq/16-i91523:28:121
19711993332,0cyclictest167950irq/16-i91522:54:091
19711993332,0cyclictest167950irq/16-i91522:37:021
19711993332,0cyclictest167950irq/16-i91522:27:241
19711993332,0cyclictest167950irq/16-i91522:17:011
19711993332,0cyclictest167950irq/16-i91522:06:101
19711993332,0cyclictest167950irq/16-i91521:37:161
19711993332,0cyclictest167950irq/16-i91521:23:401
19711993332,0cyclictest167950irq/16-i91521:06:511
19711993332,0cyclictest167950irq/16-i91521:02:011
19711993332,0cyclictest167950irq/16-i91520:06:591
19711993332,0cyclictest167950irq/16-i91520:01:591
19711993332,0cyclictest167950irq/16-i91519:53:441
19711993332,0cyclictest167950irq/16-i91519:45:581
19711993332,0cyclictest167950irq/16-i91519:31:541
19711993332,0cyclictest167950irq/16-i91519:09:521
19711993332,0cyclictest167950irq/16-i91519:06:181
19711993332,0cyclictest167950irq/16-i91500:29:451
19711993332,0cyclictest167950irq/16-i91500:00:061
19711993331,1cyclictest167950irq/16-i91521:33:031
19711993331,1cyclictest167950irq/16-i91520:49:281
19711993331,1cyclictest167950irq/16-i91520:37:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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