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2026-05-09 - 16:39
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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 rackdslot1.osadl.org (updated Sat May 09, 2026 12:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1404721570,6sleep32704499cyclictest07:50:193
2704399762,33cyclictest0-21swapper/207:30:232
27043996730,5cyclictest33-21ksoftirqd/209:25:002
27043996534,4cyclictest33-21ksoftirqd/208:55:002
27043996330,5cyclictest33-21ksoftirqd/211:50:012
27043996231,6cyclictest33-21ksoftirqd/207:45:192
27043996231,5cyclictest33-21ksoftirqd/207:10:152
27043996229,8cyclictest33-21ksoftirqd/209:40:002
27043996228,5cyclictest33-21ksoftirqd/209:55:282
27043996227,4cyclictest33-21ksoftirqd/208:41:332
2704399622,32cyclictest0-21swapper/212:10:222
2704399622,31cyclictest0-21swapper/210:34:252
27043996130,5cyclictest33-21ksoftirqd/212:20:162
27043996129,9cyclictest33-21ksoftirqd/207:15:132
27043996129,5cyclictest33-21ksoftirqd/207:55:212
27043996127,5cyclictest33-21ksoftirqd/211:20:152
2704399612,33cyclictest0-21swapper/208:02:252
2704399612,32cyclictest0-21swapper/210:45:522
134491610,2ptp4l19087-21ntp_states08:00:223
27043996031,5cyclictest33-21ksoftirqd/207:40:012
27043996025,6cyclictest33-21ksoftirqd/209:00:202
27043996024,5cyclictest33-21ksoftirqd/210:40:222
2704399602,32cyclictest0-21swapper/212:09:242
134491600,5ptp4l2704499cyclictest10:47:293
27043995928,5cyclictest33-21ksoftirqd/212:35:192
27043995923,6cyclictest33-21ksoftirqd/211:00:182
27043995923,5cyclictest33-21ksoftirqd/208:15:162
134491590,3ptp4l0-21swapper/009:40:270
2704399586,4cyclictest33-21ksoftirqd/209:00:002
27043995827,9cyclictest33-21ksoftirqd/207:25:002
2704399582,32cyclictest0-21swapper/209:46:512
27043995820,6cyclictest33-21ksoftirqd/209:30:252
134491580,5ptp4l0-21swapper/307:07:153
134491580,4ptp4l0-21swapper/107:20:191
134491580,3ptp4l9967-21memory11:10:193
27043995725,5cyclictest33-21ksoftirqd/211:29:182
27043995724,5cyclictest33-21ksoftirqd/210:15:262
2704399572,35cyclictest0-21swapper/208:30:132
27043995722,5cyclictest33-21ksoftirqd/208:10:192
134491570,5ptp4l0-21swapper/010:05:380
134491570,3ptp4l0-21swapper/308:55:003
27043995631,7cyclictest33-21ksoftirqd/208:35:292
2704399562,35cyclictest0-21swapper/209:40:152
134491560,4ptp4l0-21swapper/308:15:373
134491560,3ptp4l0-21swapper/110:35:391
134491560,3ptp4l0-21swapper/007:45:250
2704399552,35cyclictest0-21swapper/208:45:232
2704399550,6cyclictest13797-21latency_hist12:30:002
134491550,3ptp4l0-21swapper/308:26:003
134491550,3ptp4l0-21swapper/011:00:130
2704399542,7cyclictest0-21swapper/211:10:172
27043995423,9cyclictest33-21ksoftirqd/207:35:172
134491540,4ptp4l0-21swapper/309:47:553
134491540,3ptp4l0-21swapper/307:11:583
134491540,2ptp4l0-21swapper/309:30:293
2704399534,6cyclictest27863-21tr11:50:142
2704399534,5cyclictest33-21ksoftirqd/211:40:012
27043995330,6cyclictest33-21ksoftirqd/210:04:282
2704399532,7cyclictest0-21swapper/210:35:242
2704399532,7cyclictest0-21swapper/208:20:232
2704399532,7cyclictest0-21swapper/207:50:282
27043995323,7cyclictest33-21ksoftirqd/210:25:132
134491530,6ptp4l0-21swapper/107:09:451
134491530,4ptp4l0-21swapper/310:50:373
134491530,3ptp4l0-21swapper/010:50:190
2704399524,6cyclictest33-21ksoftirqd/211:15:142
2704399523,7cyclictest0-21swapper/210:20:162
27043995221,3cyclictest33-21ksoftirqd/210:50:162
134491520,4ptp4l0-21swapper/211:58:032
134491520,4ptp4l0-21swapper/010:28:180
2704399515,8cyclictest33-21ksoftirqd/211:05:132
2704399515,5cyclictest33-21ksoftirqd/209:50:262
2704399515,2cyclictest0-21swapper/210:05:142
2704399512,22cyclictest0-21swapper/210:57:442
2704399510,7cyclictest33-21ksoftirqd/210:10:182
134491510,4ptp4l0-21swapper/212:33:472
134491510,4ptp4l0-21swapper/212:33:472
134491510,4ptp4l0-21swapper/109:37:461
134491510,3ptp4l0-21swapper/309:01:583
134491510,3ptp4l0-21swapper/307:30:363
134491510,3ptp4l0-21swapper/008:05:040
134491510,12ptp4l0-21swapper/110:19:281
2704399505,5cyclictest33-21ksoftirqd/211:45:002
2704399502,7cyclictest0-21swapper/207:25:142
2704399500,11cyclictest33-21ksoftirqd/212:15:152
134491500,5ptp4l0-21swapper/207:07:372
134491500,4ptp4l0-21swapper/309:24:093
134491500,4ptp4l0-21swapper/211:34:382
134491500,4ptp4l0-21swapper/209:05:362
134491500,3ptp4l0-21swapper/310:35:453
134491500,3ptp4l0-21swapper/307:45:093
2704399492,7cyclictest0-21swapper/209:25:182
134491490,5ptp4l0-21swapper/007:35:210
134491490,4ptp4l0-21swapper/309:10:303
134491490,4ptp4l0-21swapper/308:09:303
134491490,4ptp4l0-21swapper/111:19:331
134491490,4ptp4l0-21swapper/010:02:230
134491490,4ptp4l0-21swapper/009:27:550
134491490,3ptp4l0-21swapper/310:07:013
134491490,3ptp4l0-21swapper/308:45:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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