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2026-07-06 - 19:19
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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 Jul 06, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591234205,19phc2sys0-21swapper/307:09:593
195552201167,22sleep20-21swapper/207:08:002
195802200166,22sleep00-21swapper/007:08:180
195592200166,23sleep10-21swapper/107:08:031
720821650,6sleep02001199cyclictest08:55:010
138491670,1ptp4l401ktimersoftd/307:24:103
138491600,1ptp4l401ktimersoftd/312:06:463
273102500,2sleep30-21swapper/308:30:003
134991500,1getstats0-21swapper/311:13:563
230722490,3sleep20-21swapper/210:30:142
20012994942,4cyclictest19716-21sh08:15:001
134991490,9getstats0-21swapper/311:18:563
101592480,2sleep1241ktimersoftd/110:05:101
188812470,3sleep30-21swapper/312:30:213
138491460,0ptp4l401ktimersoftd/310:55:443
20012994517,26cyclictest22449-21kworker/1:110:56:051
20011994538,4cyclictest24644-21cron08:25:000
2001199452,6cyclictest9-21ksoftirqd/012:00:290
138491440,0ptp4l401ktimersoftd/312:16:533
138491420,0ptp4l401ktimersoftd/311:44:503
138491410,0ptp4l401ktimersoftd/311:55:183
138491410,0ptp4l401ktimersoftd/308:10:173
20013994031,7cyclictest33-21ksoftirqd/210:43:102
2001199400,6cyclictest50798rtkit-daemon09:55:130
138491400,0ptp4l401ktimersoftd/311:45:223
2001199391,4cyclictest9-21ksoftirqd/011:10:010
20013993832,4cyclictest33-21ksoftirqd/212:17:492
20012993833,3cyclictest7646-21wc11:05:111
20012993831,5cyclictest25-21ksoftirqd/107:30:491
2001299380,4cyclictest0-21swapper/108:25:131
2001199384,7cyclictest9-21ksoftirqd/011:15:180
2001199382,6cyclictest9-21ksoftirqd/011:45:260
138491380,1ptp4l401ktimersoftd/307:42:333
20014993731,4cyclictest41-21ksoftirqd/312:02:063
20014993731,4cyclictest41-21ksoftirqd/311:08:213
20013993731,4cyclictest33-21ksoftirqd/207:18:222
2001199373,4cyclictest9-21ksoftirqd/009:40:160
20011993721,9cyclictest9-21ksoftirqd/010:48:080
2001199371,6cyclictest9-21ksoftirqd/008:25:260
2001199371,4cyclictest9-21ksoftirqd/012:08:260
20011993712,5cyclictest9-21ksoftirqd/011:03:380
20011993712,4cyclictest9-21ksoftirqd/010:00:200
138491370,2ptp4l391rcuc/308:40:133
138491370,0ptp4l401ktimersoftd/308:05:173
20014993631,3cyclictest41-21ksoftirqd/310:25:173
20014993631,3cyclictest41-21ksoftirqd/308:34:593
20014993630,4cyclictest41-21ksoftirqd/312:23:113
20014993630,4cyclictest41-21ksoftirqd/311:25:303
20014993630,4cyclictest41-21ksoftirqd/310:12:493
20014993630,4cyclictest41-21ksoftirqd/309:04:263
20014993630,4cyclictest41-21ksoftirqd/309:04:263
20014993629,5cyclictest41-21ksoftirqd/308:18:133
20013993630,4cyclictest33-21ksoftirqd/209:50:502
20013993630,4cyclictest33-21ksoftirqd/209:31:172
20013993630,4cyclictest33-21ksoftirqd/207:13:132
20013993630,3cyclictest33-21ksoftirqd/211:28:222
20012993631,3cyclictest25-21ksoftirqd/110:25:121
20012993630,4cyclictest25-21ksoftirqd/111:52:211
20012993630,4cyclictest25-21ksoftirqd/110:19:371
20012993630,4cyclictest25-21ksoftirqd/109:07:241
20012993630,4cyclictest25-21ksoftirqd/108:18:071
20012993630,3cyclictest25-21ksoftirqd/111:35:091
2001199363,5cyclictest9-21ksoftirqd/010:15:210
2001199363,11cyclictest9-21ksoftirqd/009:30:150
2001199362,5cyclictest9-21ksoftirqd/009:15:360
2001199362,4cyclictest9-21ksoftirqd/010:23:550
2001199360,5cyclictest9-21ksoftirqd/012:34:590
20014993530,3cyclictest41-21ksoftirqd/312:10:123
20014993529,4cyclictest41-21ksoftirqd/310:49:533
20014993529,4cyclictest41-21ksoftirqd/310:16:423
20013993530,3cyclictest33-21ksoftirqd/212:20:122
20013993529,4cyclictest33-21ksoftirqd/212:31:142
20013993529,4cyclictest33-21ksoftirqd/212:25:112
20013993529,4cyclictest33-21ksoftirqd/211:45:392
20013993529,4cyclictest33-21ksoftirqd/209:08:222
20013993529,4cyclictest33-21ksoftirqd/208:14:182
20013993529,4cyclictest33-21ksoftirqd/208:04:322
20013993529,4cyclictest33-21ksoftirqd/207:51:122
20013993528,4cyclictest33-21ksoftirqd/211:40:002
2001299354,29cyclictest0-21swapper/109:48:131
20012993529,4cyclictest25-21ksoftirqd/109:25:461
20012993529,4cyclictest25-21ksoftirqd/108:23:321
20012993529,4cyclictest25-21ksoftirqd/107:36:031
20012993529,4cyclictest25-21ksoftirqd/107:20:061
20012993528,5cyclictest25-21ksoftirqd/111:46:441
20012993528,4cyclictest25-21ksoftirqd/111:20:001
20012993512,20cyclictest7554-21expr08:55:141
20012993512,20cyclictest7554-21expr08:55:141
2001199354,5cyclictest9-21ksoftirqd/011:20:110
20011993529,4cyclictest9-21ksoftirqd/011:35:580
20011993529,3cyclictest9-21ksoftirqd/009:10:000
2001199352,5cyclictest9-21ksoftirqd/007:45:240
2001199351,6cyclictest9-21ksoftirqd/007:10:260
2001199351,5cyclictest9-21ksoftirqd/012:15:130
20014993429,3cyclictest41-21ksoftirqd/307:40:003
20014993428,4cyclictest41-21ksoftirqd/310:44:033
20014993428,4cyclictest41-21ksoftirqd/310:24:453
20014993428,4cyclictest41-21ksoftirqd/310:03:073
20014993428,4cyclictest41-21ksoftirqd/309:28:043
20014993427,5cyclictest41-21ksoftirqd/308:48:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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