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2026-08-28 - 03:34
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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 100 highest latencies:
System rackdslot4.osadl.org (updated Fri Aug 28, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591231167,52phc2sys0-21swapper/319:08:533
229022202169,21sleep20-21swapper/219:07:142
230962201167,23sleep10-21swapper/119:09:461
229972201166,23sleep00-21swapper/019:08:280
1108421740,6sleep12340799cyclictest00:10:141
138491680,1ptp4l26910-21ls22:30:213
195892640,7sleep12340799cyclictest23:20:231
137272640,8sleep32340999cyclictest23:10:143
30842610,7sleep02340699cyclictest22:50:010
138491590,1ptp4l401ktimersoftd/322:24:433
138491550,1ptp4l401ktimersoftd/323:24:323
21452540,3sleep22144-21phc2sys20:35:232
138491530,1ptp4l401ktimersoftd/322:25:153
13262530,1sleep20-21swapper/222:45:172
138491510,1ptp4l391rcuc/321:39:063
224872490,1sleep30-21swapper/300:31:103
224872490,1sleep30-21swapper/300:31:103
138491460,0ptp4l401ktimersoftd/323:40:073
138491460,0ptp4l401ktimersoftd/319:20:193
23407994438,3cyclictest15437-21cron21:05:001
138491430,35ptp4l0-21swapper/319:10:003
138491430,1ptp4l401ktimersoftd/323:55:083
138491430,0ptp4l401ktimersoftd/322:10:003
138491420,0ptp4l401ktimersoftd/321:55:233
138491410,0ptp4l401ktimersoftd/323:00:133
138491410,0ptp4l401ktimersoftd/321:31:003
138491410,0ptp4l401ktimersoftd/321:21:423
138491410,0ptp4l401ktimersoftd/300:25:173
23408994035,3cyclictest33-21ksoftirqd/221:00:002
23407994035,3cyclictest25-21ksoftirqd/123:20:001
138491400,1ptp4l401ktimersoftd/320:44:293
23407993934,3cyclictest25-21ksoftirqd/122:50:011
23407993926,10cyclictest25-21ksoftirqd/121:20:191
138491390,0ptp4l401ktimersoftd/322:35:273
23409993731,4cyclictest41-21ksoftirqd/300:18:543
23408993731,4cyclictest33-21ksoftirqd/220:05:552
23408993731,4cyclictest33-21ksoftirqd/200:24:192
23407993731,3cyclictest25-21ksoftirqd/121:50:001
23407993731,3cyclictest25-21ksoftirqd/100:15:131
138491370,0ptp4l401ktimersoftd/322:40:133
23409993630,4cyclictest41-21ksoftirqd/321:03:253
23409993630,4cyclictest41-21ksoftirqd/319:39:043
23409993629,4cyclictest41-21ksoftirqd/300:40:003
23408993630,4cyclictest33-21ksoftirqd/200:04:212
23408993629,5cyclictest33-21ksoftirqd/222:20:542
2340899360,35cyclictest0-21swapper/200:26:042
23407993630,4cyclictest25-21ksoftirqd/121:29:291
23407993630,4cyclictest25-21ksoftirqd/119:40:111
23407993630,3cyclictest25-21ksoftirqd/122:40:001
23407993629,4cyclictest25-21ksoftirqd/100:20:121
23406993631,3cyclictest9-21ksoftirqd/022:20:130
23409993529,4cyclictest41-21ksoftirqd/321:07:143
23409993529,4cyclictest41-21ksoftirqd/320:50:453
23408993530,3cyclictest33-21ksoftirqd/220:53:292
23408993529,4cyclictest33-21ksoftirqd/223:56:112
23408993529,4cyclictest33-21ksoftirqd/223:25:052
23408993529,4cyclictest33-21ksoftirqd/223:00:502
23408993529,4cyclictest33-21ksoftirqd/221:45:002
23408993529,4cyclictest33-21ksoftirqd/219:48:502
23407993530,3cyclictest25-21ksoftirqd/121:30:591
23407993530,3cyclictest25-21ksoftirqd/120:01:081
23407993529,4cyclictest25-21ksoftirqd/121:55:021
23407993529,4cyclictest25-21ksoftirqd/120:50:351
23407993529,3cyclictest25-21ksoftirqd/123:49:591
23407993529,3cyclictest25-21ksoftirqd/121:40:001
23407993528,4cyclictest25-21ksoftirqd/123:10:161
23406993529,4cyclictest9-21ksoftirqd/023:48:270
23406993529,4cyclictest9-21ksoftirqd/023:22:100
23406993529,4cyclictest9-21ksoftirqd/021:11:510
23406993529,4cyclictest9-21ksoftirqd/020:37:220
23406993529,4cyclictest9-21ksoftirqd/020:07:290
23406993529,4cyclictest9-21ksoftirqd/000:24:450
23406993528,5cyclictest9-21ksoftirqd/023:26:310
138491350,0ptp4l401ktimersoftd/300:20:253
23409993428,4cyclictest41-21ksoftirqd/321:43:083
23409993428,4cyclictest41-21ksoftirqd/320:38:013
23408993429,3cyclictest33-21ksoftirqd/223:49:592
23408993429,3cyclictest33-21ksoftirqd/200:10:562
23408993428,4cyclictest33-21ksoftirqd/223:51:352
23408993428,4cyclictest33-21ksoftirqd/223:06:322
23408993428,4cyclictest33-21ksoftirqd/222:51:552
23408993428,4cyclictest33-21ksoftirqd/222:35:552
23408993428,4cyclictest33-21ksoftirqd/221:53:392
23408993428,4cyclictest33-21ksoftirqd/221:29:472
23408993428,4cyclictest33-21ksoftirqd/220:30:342
23408993428,4cyclictest33-21ksoftirqd/220:23:282
23408993428,4cyclictest33-21ksoftirqd/219:51:262
23408993428,4cyclictest33-21ksoftirqd/219:22:502
23407993429,3cyclictest25-21ksoftirqd/122:10:171
23407993429,3cyclictest25-21ksoftirqd/121:40:201
23407993429,3cyclictest25-21ksoftirqd/120:45:131
23407993429,3cyclictest25-21ksoftirqd/119:17:011
23407993428,4cyclictest25-21ksoftirqd/123:29:261
23407993428,4cyclictest25-21ksoftirqd/122:26:351
23407993428,4cyclictest25-21ksoftirqd/120:15:451
23407993428,3cyclictest25-21ksoftirqd/122:35:001
23407993427,5cyclictest25-21ksoftirqd/120:31:041
23406993430,3cyclictest9-21ksoftirqd/000:30:130
23406993430,3cyclictest9-21ksoftirqd/000:30:130
23406993429,3cyclictest9-21ksoftirqd/019:56:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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