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2025-09-18 - 04:24
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack0slot0.osadl.org (updated Thu Sep 18, 2025 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
657721190,1sleep61036-21runrttasks22:42:076
1234121120,0sleep2321ktimersoftd/221:16:362
97572850,1sleep29750-21bash00:30:302
88692790,1sleep5591ktimersoftd/500:37:235
88692790,1sleep5591ktimersoftd/500:37:235
50552780,1sleep70-21swapper/721:25:297
50552780,1sleep70-21swapper/721:25:297
300242780,0sleep20-21swapper/222:31:042
283022780,0sleep00-21swapper/023:24:320
64652760,1sleep51036-21runrttasks22:42:065
63012760,1sleep10-21swapper/122:08:431
186462760,0sleep30-21swapper/322:43:243
288282750,5sleep61756099cyclictest23:17:506
288282750,5sleep61756099cyclictest23:17:496
58352740,1sleep625045-21kworker/6:000:23:146
302812740,1sleep70-21swapper/723:07:577
302812740,1sleep70-21swapper/723:07:577
28592730,0sleep30-21swapper/322:08:223
233782730,1sleep3411ktimersoftd/321:20:543
164562730,0sleep30-21swapper/321:56:203
202992710,1sleep50-21swapper/500:00:295
190932710,0sleep40-21swapper/421:40:024
36832700,1sleep70-21swapper/721:12:317
140672700,0sleep00-21swapper/000:37:590
140672700,0sleep00-21swapper/000:37:580
192372680,1sleep019231-21sshd22:20:040
190682660,2sleep20-21swapper/223:36:542
1721526151,6sleep10-21swapper/119:08:561
307442600,1sleep5581rcuc/521:31:215
1725726050,6sleep60-21swapper/619:09:336
1708025646,6sleep70-21swapper/719:07:177
1724725342,7sleep50-21swapper/519:09:245
283362520,1sleep628335-21sshd23:47:566
106152480,0sleep210614-21sshd21:39:122
49462450,1sleep51755499cyclictest20:55:145
1726524535,6sleep30-21swapper/319:09:383
1722324332,7sleep00-21swapper/019:09:040
1693424130,7sleep40-21swapper/419:05:314
1525424131,6sleep20-21swapper/219:05:042
245842400,0sleep024582-21sshd23:40:430
247512240,0sleep20-21swapper/222:44:042
189032240,1sleep718899-21grepconf.sh21:20:267
145222230,2sleep50-21swapper/500:13:585
96062220,1sleep40-21swapper/400:06:294
243622220,2sleep30-21swapper/322:17:113
240452220,4sleep01752299cyclictest22:57:160
219302220,3sleep71756799cyclictest23:23:527
100022220,1sleep01752299cyclictest23:29:210
322122210,0sleep10-21swapper/123:45:021
9982200,1sleep30-21swapper/322:04:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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