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2025-11-14 - 21:04
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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 rack1slot1.osadl.org (updated Fri Nov 14, 2025 12:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
88772204154,25sleep30-21swapper/307:06:103
88512201162,26sleep20-21swapper/207:05:482
88502201164,24sleep10-21swapper/107:05:471
90432199160,26sleep00-21swapper/007:08:200
74612750,0sleep10-21swapper/111:28:581
51432640,0sleep10-21swapper/109:12:441
31312600,0sleep0101rcuc/010:36:540
238592150,0sleep30-21swapper/308:45:143
925499148,4cyclictest28-21ksoftirqd/208:00:002
255412140,0sleep00-21swapper/008:50:000
926299120,9cyclictest11619-21munin-node10:58:263
9254991210,1cyclictest28-21ksoftirqd/211:40:152
9254991210,1cyclictest28-21ksoftirqd/210:25:232
925499120,11cyclictest19110-21snmpd11:09:132
9249991211,1cyclictest9-21ksoftirqd/010:20:180
9249991211,1cyclictest9-21ksoftirqd/007:30:000
9249991210,1cyclictest9-21ksoftirqd/011:50:000
925499119,1cyclictest28-21ksoftirqd/207:35:002
924999113,4cyclictest11679-21perf07:15:000
924999113,4cyclictest11679-21perf07:15:000
924999112,6cyclictest7584-21/usr/sbin/munin10:00:170
9249991111,0cyclictest9-21ksoftirqd/010:55:200
9249991110,1cyclictest9-21ksoftirqd/011:30:010
177462110,0sleep02377-21diskmemload11:41:390
925499109,1cyclictest28-21ksoftirqd/211:20:172
925499109,1cyclictest28-21ksoftirqd/210:05:182
925499109,1cyclictest28-21ksoftirqd/210:00:162
925499108,1cyclictest28-21ksoftirqd/211:18:412
925499108,1cyclictest28-21ksoftirqd/210:10:142
925499108,1cyclictest28-21ksoftirqd/209:15:142
925499104,3cyclictest60950irq/123-eno111:56:462
925499100,5cyclictest20157-21/usr/sbin/munin11:45:192
925499100,1cyclictest2377-21diskmemload12:05:182
924999109,1cyclictest9-21ksoftirqd/012:10:010
924999109,1cyclictest9-21ksoftirqd/011:55:000
924999109,1cyclictest9-21ksoftirqd/010:20:000
924999108,1cyclictest9-21ksoftirqd/010:25:220
924999108,1cyclictest9-21ksoftirqd/010:15:010
924999107,2cyclictest9-21ksoftirqd/007:40:000
71332100,0sleep00-21swapper/012:12:440
48462100,0sleep30-21swapper/309:11:553
92629999,0cyclictest35-21ksoftirqd/310:20:143
92629990,3cyclictest0-21swapper/308:40:133
92549998,1cyclictest28-21ksoftirqd/211:30:262
92549998,1cyclictest28-21ksoftirqd/211:10:182
92549998,1cyclictest28-21ksoftirqd/210:55:182
92549998,1cyclictest28-21ksoftirqd/209:22:282
92549998,1cyclictest28-21ksoftirqd/208:10:002
92549998,1cyclictest28-21ksoftirqd/207:15:012
92549997,1cyclictest28-21ksoftirqd/212:10:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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