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2026-07-12 - 15:46
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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 Sun Jul 12, 2026 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1798021580,6sleep12867299cyclictest12:34:521
28673997034,6cyclictest33-21ksoftirqd/207:45:002
28673996933,5cyclictest33-21ksoftirqd/212:35:012
28673996834,4cyclictest33-21ksoftirqd/210:50:002
28673996720,5cyclictest33-21ksoftirqd/209:10:012
28673996629,9cyclictest33-21ksoftirqd/210:44:102
28673996331,6cyclictest33-21ksoftirqd/210:35:212
28673996327,8cyclictest33-21ksoftirqd/211:03:432
28672996333,3cyclictest25-21ksoftirqd/109:35:181
28673996232,7cyclictest33-21ksoftirqd/209:22:432
28673996231,3cyclictest33-21ksoftirqd/208:05:292
28673996231,3cyclictest33-21ksoftirqd/208:05:292
28673996222,12cyclictest33-21ksoftirqd/209:27:462
28673996129,8cyclictest33-21ksoftirqd/208:30:172
28673996129,5cyclictest33-21ksoftirqd/210:25:222
28673996128,5cyclictest33-21ksoftirqd/212:05:002
28673996124,9cyclictest33-21ksoftirqd/211:27:462
28673996123,12cyclictest33-21ksoftirqd/208:13:442
28672996129,4cyclictest25-21ksoftirqd/112:35:151
28672996124,6cyclictest25-21ksoftirqd/112:15:161
28673996031,9cyclictest33-21ksoftirqd/208:39:462
28673996024,5cyclictest33-21ksoftirqd/208:40:142
28673996023,9cyclictest33-21ksoftirqd/212:10:462
28672996034,3cyclictest25-21ksoftirqd/110:40:011
28672996031,7cyclictest25-21ksoftirqd/112:25:151
28672996028,3cyclictest25-21ksoftirqd/108:14:051
28672996024,9cyclictest25-21ksoftirqd/112:14:591
28673995933,7cyclictest33-21ksoftirqd/210:31:262
28673995929,4cyclictest33-21ksoftirqd/210:51:272
28673995929,10cyclictest33-21ksoftirqd/207:46:512
28673995922,8cyclictest33-21ksoftirqd/208:50:432
28673995922,8cyclictest33-21ksoftirqd/208:50:432
28673995922,7cyclictest33-21ksoftirqd/208:22:552
28673995921,8cyclictest33-21ksoftirqd/211:53:122
28672995928,7cyclictest25-21ksoftirqd/107:10:181
28672995927,6cyclictest25-21ksoftirqd/110:30:251
28672995922,3cyclictest25-21ksoftirqd/109:15:181
2867499582,54cyclictest0-21swapper/309:27:283
28673995830,5cyclictest33-21ksoftirqd/210:58:262
28673995827,3cyclictest33-21ksoftirqd/211:14:222
28673995826,4cyclictest33-21ksoftirqd/209:00:172
28673995820,8cyclictest33-21ksoftirqd/210:00:042
28672995826,3cyclictest25-21ksoftirqd/110:50:191
28672995824,7cyclictest25-21ksoftirqd/107:20:401
28672995821,7cyclictest25-21ksoftirqd/107:30:191
134491580,3ptp4l0-21swapper/108:45:111
28673995734,10cyclictest33-21ksoftirqd/212:39:122
28673995724,5cyclictest33-21ksoftirqd/208:05:002
28673995721,8cyclictest33-21ksoftirqd/208:46:582
28673995718,8cyclictest33-21ksoftirqd/209:52:422
28672995725,4cyclictest25-21ksoftirqd/111:35:151
134491570,4ptp4l0-21swapper/109:55:211
134491570,3ptp4l0-21swapper/110:47:041
28673995629,7cyclictest33-21ksoftirqd/207:25:142
28673995622,9cyclictest33-21ksoftirqd/210:05:212
28673995622,5cyclictest33-21ksoftirqd/207:15:182
28673995620,11cyclictest33-21ksoftirqd/211:20:002
28672995629,8cyclictest25-21ksoftirqd/107:44:341
28672995626,3cyclictest25-21ksoftirqd/109:29:141
28672995623,9cyclictest25-21ksoftirqd/110:10:011
28672995623,7cyclictest25-21ksoftirqd/109:13:321
28672995623,3cyclictest25-21ksoftirqd/110:22:461
134491560,4ptp4l0-21swapper/111:45:281
134491560,4ptp4l0-21swapper/110:15:121
134491560,4ptp4l0-21swapper/009:10:190
134491560,4ptp4l0-21swapper/008:15:270
134491560,3ptp4l0-21swapper/212:26:022
134491560,3ptp4l0-21swapper/109:05:281
134491560,3ptp4l0-21swapper/010:08:260
28673995529,15cyclictest33-21ksoftirqd/209:42:082
28673995528,6cyclictest33-21ksoftirqd/211:35:282
28673995525,4cyclictest33-21ksoftirqd/212:22:242
28673995522,5cyclictest33-21ksoftirqd/209:36:172
28673995522,3cyclictest33-21ksoftirqd/207:36:252
28673995518,5cyclictest33-21ksoftirqd/209:55:222
28672995521,7cyclictest25-21ksoftirqd/111:20:201
28672995519,7cyclictest25-21ksoftirqd/111:55:271
134491550,7ptp4l41-21ksoftirqd/310:30:173
134491550,5ptp4l0-21swapper/112:00:161
28673995426,7cyclictest33-21ksoftirqd/207:11:322
28673995419,8cyclictest33-21ksoftirqd/210:10:142
28673995419,8cyclictest33-21ksoftirqd/210:10:132
28672995428,2cyclictest25-21ksoftirqd/112:06:561
28672995423,7cyclictest25-21ksoftirqd/111:40:241
28672995423,6cyclictest25-21ksoftirqd/108:35:571
28672995421,10cyclictest25-21ksoftirqd/111:10:001
28672995420,7cyclictest25-21ksoftirqd/107:25:251
28672995420,4cyclictest25-21ksoftirqd/111:10:201
134491540,5ptp4l0-21swapper/007:08:380
2867399536,3cyclictest33-21ksoftirqd/208:16:082
28673995334,11cyclictest33-21ksoftirqd/211:09:342
28673995333,9cyclictest33-21ksoftirqd/211:49:492
28673995321,7cyclictest33-21ksoftirqd/211:55:212
28673995317,6cyclictest33-21ksoftirqd/211:31:112
28673995317,6cyclictest33-21ksoftirqd/211:31:112
28672995328,3cyclictest25-21ksoftirqd/110:29:121
28672995327,3cyclictest25-21ksoftirqd/111:33:021
28672995327,3cyclictest25-21ksoftirqd/111:33:021
28672995325,6cyclictest25-21ksoftirqd/108:25:291
28672995319,9cyclictest25-21ksoftirqd/110:00:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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