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2026-09-14 - 21:52
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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 Mon Sep 14, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
242712224163,49sleep10-21swapper/107:09:511
241902222157,22sleep00-21swapper/007:08:490
138591205170,23phc2sys0-21swapper/307:06:163
242022202170,21sleep20-21swapper/207:08:592
1384421680,6sleep32458699cyclictest07:50:283
811321400,4sleep32458699cyclictest12:00:203
138491650,9ptp4l401ktimersoftd/312:31:393
54852540,2sleep10-21swapper/110:50:181
39352470,1sleep30-21swapper/307:30:263
24585994515,28cyclictest0-21swapper/207:55:122
24585994428,4cyclictest33-21ksoftirqd/208:12:012
138491430,0ptp4l401ktimersoftd/309:25:243
138491430,0ptp4l401ktimersoftd/309:00:053
135191430,1getstats24617-1kworker/3:1H07:55:163
24586994237,3cyclictest41-21ksoftirqd/308:19:593
138491420,0ptp4l401ktimersoftd/309:39:533
138491420,0ptp4l401ktimersoftd/309:39:533
138491420,0ptp4l401ktimersoftd/308:00:253
138491410,0ptp4l401ktimersoftd/309:00:003
50798400,7rtkit-daemon138491ptp4l08:34:033
24586994035,3cyclictest41-21ksoftirqd/312:20:003
24586994032,5cyclictest6610-21sh10:55:003
138491400,1ptp4l401ktimersoftd/311:59:423
24584993910,27cyclictest0-21swapper/108:50:331
138491390,0ptp4l401ktimersoftd/307:29:463
24586993832,3cyclictest41-21ksoftirqd/310:00:163
24583993831,4cyclictest9-21ksoftirqd/012:16:140
24586993733,3cyclictest41-21ksoftirqd/311:25:173
24586993733,2cyclictest41-21ksoftirqd/308:40:013
24586993731,4cyclictest41-21ksoftirqd/308:49:403
24584993732,3cyclictest25-21ksoftirqd/110:45:001
24584993731,4cyclictest25-21ksoftirqd/111:33:471
2458499370,36cyclictest0-21swapper/108:02:541
24583993729,5cyclictest9-21ksoftirqd/010:01:080
138491370,0ptp4l401ktimersoftd/311:44:083
50798360,5rtkit-daemon1319-21snmpd10:28:393
24586993632,3cyclictest41-21ksoftirqd/311:30:193
24586993630,3cyclictest41-21ksoftirqd/311:15:193
24586993626,9cyclictest41-21ksoftirqd/308:20:203
24585993630,4cyclictest33-21ksoftirqd/211:52:052
24585993630,4cyclictest33-21ksoftirqd/210:48:462
24585993630,4cyclictest33-21ksoftirqd/210:32:502
24585993630,3cyclictest33-21ksoftirqd/211:00:002
24585993629,5cyclictest33-21ksoftirqd/209:45:362
24585993629,5cyclictest33-21ksoftirqd/207:20:572
24584993631,3cyclictest25-21ksoftirqd/112:20:401
24584993630,4cyclictest25-21ksoftirqd/111:24:391
24584993630,4cyclictest25-21ksoftirqd/110:37:581
24583993629,5cyclictest9-21ksoftirqd/011:09:590
91032350,2sleep00-21swapper/009:55:010
24586993530,3cyclictest41-21ksoftirqd/312:38:233
24586993530,3cyclictest41-21ksoftirqd/310:10:013
24586993530,3cyclictest41-21ksoftirqd/309:56:163
24586993529,4cyclictest41-21ksoftirqd/310:37:083
24586993529,4cyclictest41-21ksoftirqd/309:33:463
24586993529,4cyclictest41-21ksoftirqd/308:28:553
24586993528,4cyclictest41-21ksoftirqd/312:11:273
2458599358,26cyclictest0-21swapper/207:35:332
2458599358,26cyclictest0-21swapper/207:35:332
24585993530,3cyclictest33-21ksoftirqd/212:30:102
24585993529,4cyclictest33-21ksoftirqd/209:43:112
24585993529,4cyclictest33-21ksoftirqd/208:21:362
24585993529,4cyclictest33-21ksoftirqd/207:31:172
24585993529,4cyclictest33-21ksoftirqd/207:18:162
24584993530,3cyclictest25-21ksoftirqd/109:02:071
24584993529,4cyclictest25-21ksoftirqd/111:44:541
24584993529,4cyclictest25-21ksoftirqd/111:11:521
24584993529,4cyclictest25-21ksoftirqd/110:56:511
24584993529,3cyclictest25-21ksoftirqd/107:20:111
24583993530,3cyclictest9-21ksoftirqd/007:44:550
24583993529,4cyclictest9-21ksoftirqd/012:04:140
24583993529,4cyclictest9-21ksoftirqd/011:21:420
24583993529,4cyclictest9-21ksoftirqd/010:28:190
24583993529,4cyclictest9-21ksoftirqd/010:06:440
24583993528,4cyclictest9-21ksoftirqd/008:57:080
138491350,0ptp4l401ktimersoftd/309:45:183
138491350,0ptp4l401ktimersoftd/307:45:133
24586993429,3cyclictest41-21ksoftirqd/309:50:173
24586993429,3cyclictest41-21ksoftirqd/309:05:193
24586993428,4cyclictest41-21ksoftirqd/311:38:273
24586993428,4cyclictest41-21ksoftirqd/310:11:133
24586993428,4cyclictest41-21ksoftirqd/308:44:553
24585993429,3cyclictest33-21ksoftirqd/208:47:382
24585993429,3cyclictest33-21ksoftirqd/208:42:472
24585993429,3cyclictest33-21ksoftirqd/207:50:102
24585993429,3cyclictest33-21ksoftirqd/207:10:382
24585993428,4cyclictest33-21ksoftirqd/211:32:552
24585993428,4cyclictest33-21ksoftirqd/210:51:392
24585993428,4cyclictest33-21ksoftirqd/210:13:032
24585993428,4cyclictest33-21ksoftirqd/210:07:062
24585993428,4cyclictest33-21ksoftirqd/209:32:522
24585993428,4cyclictest33-21ksoftirqd/209:13:312
24585993428,4cyclictest33-21ksoftirqd/207:28:382
24585993427,5cyclictest33-21ksoftirqd/207:42:082
24585993412,21cyclictest0-21swapper/211:11:552
24584993429,3cyclictest25-21ksoftirqd/112:20:001
24584993429,3cyclictest25-21ksoftirqd/109:32:481
24584993428,4cyclictest25-21ksoftirqd/112:34:211
24584993428,4cyclictest25-21ksoftirqd/111:35:321
24584993428,4cyclictest25-21ksoftirqd/111:27:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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