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2026-05-26 - 22:24
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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 Tue May 26, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2277421800,6sleep22614199cyclictest10:01:562
2065021750,6sleep12614099cyclictest09:54:011
2000021670,7sleep02613999cyclictest08:00:220
2749521590,5sleep22614199cyclictest10:22:552
492321580,6sleep22614199cyclictest09:53:092
1883721580,6sleep02613999cyclictest11:25:270
1101721520,5sleep02613999cyclictest10:21:000
1675521400,6sleep32614299cyclictest10:21:533
507981080,89rtkit-daemon0-21swapper/207:09:282
25485210763,35sleep00-21swapper/007:08:000
25389210560,36sleep10-21swapper/107:06:461
1385919168,15phc2sys0-21swapper/307:05:523
255012790,4sleep325506-21spawn10:15:303
175452690,2sleep10-21swapper/110:22:421
133462690,5sleep113339-21sort10:18:331
226372680,3sleep322635-21execl10:00:373
26141996530,16cyclictest33-21ksoftirqd/210:15:232
5742620,2sleep00-21swapper/009:33:210
139822620,8sleep32614299cyclictest09:49:533
213532610,5sleep221369-21spawn10:14:332
26141996029,4cyclictest33-21ksoftirqd/209:55:222
26139996019,9cyclictest9-21ksoftirqd/010:01:510
26139995915,4cyclictest9-21ksoftirqd/009:53:190
138402560,4sleep313801-21sh09:53:183
227582550,2sleep122752-21execl10:01:441
26141995325,7cyclictest33-21ksoftirqd/211:20:182
26141995225,8cyclictest33-21ksoftirqd/207:43:312
26141995216,6cyclictest33-21ksoftirqd/209:49:392
92742510,4sleep119990-21whetstone-doubl08:45:161
26141995121,4cyclictest33-21ksoftirqd/208:28:112
26141995120,8cyclictest33-21ksoftirqd/211:40:012
26141995119,10cyclictest33-21ksoftirqd/210:50:192
26141995030,9cyclictest33-21ksoftirqd/211:10:002
26141995021,7cyclictest33-21ksoftirqd/211:45:002
26141995020,7cyclictest33-21ksoftirqd/212:35:122
26141995019,3cyclictest33-21ksoftirqd/210:45:252
26141995018,4cyclictest33-21ksoftirqd/212:30:162
26141995016,7cyclictest33-21ksoftirqd/209:40:002
26141994921,4cyclictest33-21ksoftirqd/208:41:042
26141994821,6cyclictest33-21ksoftirqd/209:24:082
26141994814,4cyclictest33-21ksoftirqd/209:25:402
26141994812,4cyclictest33-21ksoftirqd/211:25:102
2614199472,3cyclictest33-21ksoftirqd/209:40:222
26141994718,4cyclictest33-21ksoftirqd/209:33:062
26141994715,4cyclictest33-21ksoftirqd/211:00:142
26141994714,6cyclictest33-21ksoftirqd/211:30:152
26139994711,4cyclictest9-21ksoftirqd/010:15:000
138491470,0ptp4l401ktimersoftd/310:09:053
266072460,1sleep30-21swapper/310:10:163
2614199464,3cyclictest33-21ksoftirqd/212:20:232
26142994541,2cyclictest0-21swapper/307:10:013
26141994533,9cyclictest33-21ksoftirqd/210:05:272
26141994532,3cyclictest33-21ksoftirqd/207:55:212
26141994528,5cyclictest33-21ksoftirqd/210:35:202
26141994528,5cyclictest33-21ksoftirqd/210:35:192
26141994516,3cyclictest33-21ksoftirqd/211:15:132
26141994514,4cyclictest33-21ksoftirqd/210:55:122
26141994510,6cyclictest33-21ksoftirqd/212:15:232
26141994510,3cyclictest33-21ksoftirqd/212:05:122
2613999451,3cyclictest121rcu_preempt10:18:160
26141994439,3cyclictest33-21ksoftirqd/209:15:012
26141994433,3cyclictest33-21ksoftirqd/211:45:272
2614199443,2cyclictest33-21ksoftirqd/210:40:242
26141994413,6cyclictest33-21ksoftirqd/210:25:132
26142994335,4cyclictest41-21ksoftirqd/309:55:123
2614199438,6cyclictest33-21ksoftirqd/208:32:162
26141994338,3cyclictest33-21ksoftirqd/207:40:002
26141994337,3cyclictest33-21ksoftirqd/212:00:002
138491430,0ptp4l401ktimersoftd/309:00:203
135191430,2getstats0-21swapper/307:43:163
26141994237,2cyclictest33-21ksoftirqd/208:54:592
26141994235,3cyclictest33-21ksoftirqd/207:20:172
2614199420,3cyclictest19990-21whetstone-doubl07:10:122
2613999427,3cyclictest9-21ksoftirqd/007:25:230
2614199416,4cyclictest33-21ksoftirqd/208:17:322
26141994137,2cyclictest33-21ksoftirqd/208:40:012
26141994136,3cyclictest33-21ksoftirqd/209:05:002
26141994136,3cyclictest33-21ksoftirqd/207:30:002
26141994135,3cyclictest62250irq/145-enp4s0-08:22:262
26141994135,3cyclictest33-21ksoftirqd/208:49:592
26141994135,3cyclictest33-21ksoftirqd/207:30:012
26141994134,4cyclictest33-21ksoftirqd/211:15:002
26141994129,3cyclictest33-21ksoftirqd/207:18:302
26141994113,8cyclictest33-21ksoftirqd/212:00:142
2613999418,3cyclictest9-21ksoftirqd/010:25:220
2613999413,3cyclictest9-21ksoftirqd/012:00:240
26142994034,3cyclictest21694-21sh11:35:003
2614199408,7cyclictest33-21ksoftirqd/211:50:232
26141994036,2cyclictest33-21ksoftirqd/209:15:132
26141994035,3cyclictest33-21ksoftirqd/210:30:152
26141994035,3cyclictest33-21ksoftirqd/209:10:002
26141994035,3cyclictest33-21ksoftirqd/209:00:002
26141994035,3cyclictest33-21ksoftirqd/208:05:002
26141994035,3cyclictest33-21ksoftirqd/207:50:252
2614199403,2cyclictest33-21ksoftirqd/212:10:142
2614199403,2cyclictest33-21ksoftirqd/212:10:142
2614199400,6cyclictest33-21ksoftirqd/212:25:112
2613999405,6cyclictest9-21ksoftirqd/009:35:200
2613999405,2cyclictest9-21ksoftirqd/007:35:240
2613999402,3cyclictest9-21ksoftirqd/011:05:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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