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2026-08-05 - 19:18
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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 Wed Aug 05, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228092204170,23sleep30-21swapper/307:07:253
228082202169,22sleep20-21swapper/207:07:232
227722201168,22sleep10-21swapper/107:06:551
227962200167,22sleep00-21swapper/007:07:140
1385918262,11phc2sys0-21swapper/307:10:013
34352620,4sleep00-21swapper/011:40:120
232332620,2sleep20-21swapper/210:10:252
232332620,2sleep20-21swapper/210:10:252
115562550,1sleep20-21swapper/209:50:062
135191520,9getstats0-21swapper/309:55:333
138491480,9ptp4l401ktimersoftd/311:51:543
138491410,0ptp4l401ktimersoftd/312:21:413
138491410,0ptp4l401ktimersoftd/308:57:303
23306994011,27cyclictest0-21swapper/212:35:242
23305994035,3cyclictest27660-21sshd11:23:301
135191390,3getstats0-21swapper/307:35:313
23304993830,6cyclictest9-21ksoftirqd/010:30:000
50798370,6rtkit-daemon0-21swapper/012:35:580
23307993731,4cyclictest41-21ksoftirqd/311:35:033
23307993731,4cyclictest41-21ksoftirqd/310:06:083
23305993730,5cyclictest25-21ksoftirqd/111:03:551
23304993730,4cyclictest9-21ksoftirqd/007:26:390
23307993631,3cyclictest41-21ksoftirqd/311:40:123
23307993631,3cyclictest41-21ksoftirqd/311:20:213
23307993630,4cyclictest41-21ksoftirqd/312:13:023
23307993630,4cyclictest41-21ksoftirqd/311:06:023
23306993630,4cyclictest33-21ksoftirqd/211:12:472
23305993630,4cyclictest25-21ksoftirqd/109:05:291
23305993630,4cyclictest25-21ksoftirqd/109:00:441
23305993629,4cyclictest25-21ksoftirqd/107:54:491
23304993629,4cyclictest9-21ksoftirqd/008:20:430
23307993529,4cyclictest41-21ksoftirqd/311:47:393
23307993529,4cyclictest41-21ksoftirqd/311:16:333
23307993529,4cyclictest41-21ksoftirqd/310:48:453
23307993529,4cyclictest41-21ksoftirqd/310:43:363
23307993529,4cyclictest41-21ksoftirqd/308:30:533
23307993529,4cyclictest41-21ksoftirqd/308:06:463
23307993529,4cyclictest41-21ksoftirqd/308:03:133
23306993529,4cyclictest33-21ksoftirqd/212:33:072
23306993529,4cyclictest33-21ksoftirqd/212:22:082
23306993529,4cyclictest33-21ksoftirqd/211:55:352
23306993529,4cyclictest33-21ksoftirqd/211:46:562
23306993529,4cyclictest33-21ksoftirqd/210:54:342
23305993529,4cyclictest25-21ksoftirqd/109:52:471
23305993529,4cyclictest25-21ksoftirqd/109:27:351
23305993529,4cyclictest25-21ksoftirqd/108:48:441
23305993529,4cyclictest25-21ksoftirqd/107:33:461
23305993528,4cyclictest25-21ksoftirqd/110:54:531
23304993530,3cyclictest9-21ksoftirqd/007:10:430
23304993529,4cyclictest9-21ksoftirqd/010:16:250
23304993529,4cyclictest9-21ksoftirqd/007:52:110
23307993429,3cyclictest41-21ksoftirqd/311:57:013
23307993428,4cyclictest41-21ksoftirqd/310:57:273
23307993428,4cyclictest41-21ksoftirqd/310:04:283
23307993428,4cyclictest41-21ksoftirqd/307:46:403
23307993427,5cyclictest41-21ksoftirqd/312:00:383
2330799342,29cyclictest29830-21grep11:25:273
23306993429,3cyclictest33-21ksoftirqd/212:27:132
23306993429,3cyclictest33-21ksoftirqd/210:00:142
23306993429,3cyclictest33-21ksoftirqd/208:41:552
23306993429,3cyclictest33-21ksoftirqd/208:41:552
23306993428,4cyclictest33-21ksoftirqd/211:50:382
23306993428,4cyclictest33-21ksoftirqd/210:31:422
23306993428,4cyclictest33-21ksoftirqd/208:48:572
23306993428,4cyclictest33-21ksoftirqd/207:40:092
23306993428,4cyclictest33-21ksoftirqd/207:19:192
23306993414,3cyclictest9077-21ls10:50:012
23305993428,4cyclictest25-21ksoftirqd/112:16:401
23305993428,4cyclictest25-21ksoftirqd/111:19:041
23305993428,4cyclictest25-21ksoftirqd/109:59:531
23305993428,4cyclictest25-21ksoftirqd/108:38:491
23305993428,4cyclictest25-21ksoftirqd/107:47:301
23305993427,4cyclictest25-21ksoftirqd/109:21:381
23305993427,4cyclictest25-21ksoftirqd/107:58:461
23304993429,3cyclictest9-21ksoftirqd/009:48:160
23304993429,3cyclictest9-21ksoftirqd/007:34:420
23304993428,4cyclictest9-21ksoftirqd/012:08:490
23304993428,4cyclictest9-21ksoftirqd/011:55:090
23304993428,4cyclictest9-21ksoftirqd/011:36:570
23304993428,4cyclictest9-21ksoftirqd/011:24:410
23304993428,4cyclictest9-21ksoftirqd/009:55:100
23304993428,3cyclictest9-21ksoftirqd/011:27:410
23307993328,3cyclictest41-21ksoftirqd/310:32:213
23307993327,4cyclictest41-21ksoftirqd/312:27:413
23307993327,4cyclictest41-21ksoftirqd/312:05:323
23307993327,4cyclictest41-21ksoftirqd/311:33:173
23307993327,4cyclictest41-21ksoftirqd/311:03:493
23307993327,4cyclictest41-21ksoftirqd/310:10:533
23307993327,4cyclictest41-21ksoftirqd/310:10:533
23307993327,4cyclictest41-21ksoftirqd/309:51:493
23307993327,4cyclictest41-21ksoftirqd/309:35:043
23307993327,4cyclictest41-21ksoftirqd/309:33:343
23307993327,4cyclictest41-21ksoftirqd/308:35:463
23306993328,3cyclictest33-21ksoftirqd/209:48:202
23306993327,4cyclictest33-21ksoftirqd/210:27:452
23306993327,4cyclictest33-21ksoftirqd/208:19:292
23306993327,4cyclictest33-21ksoftirqd/207:22:162
23306993326,4cyclictest33-21ksoftirqd/209:20:432
23306993313,3cyclictest24152-21apt-get10:15:132
23305993328,3cyclictest25-21ksoftirqd/111:13:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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