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2026-05-23 - 12:41
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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 Sat May 23, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591212167,33phc2sys0-21swapper/319:08:593
232052202169,21sleep20-21swapper/219:08:372
230652202167,23sleep10-21swapper/119:06:471
231212199166,22sleep00-21swapper/019:07:300
2189021510,6sleep02360599cyclictest00:25:260
205232850,3sleep30-21swapper/323:20:183
2331428262,11sleep10-21swapper/119:10:001
290932770,6sleep02360599cyclictest20:25:170
152812520,4sleep215286-21cpuspeed_turbos00:15:142
324652460,2sleep10-21swapper/119:25:201
23607994236,3cyclictest8470-21cron20:50:002
23607994134,5cyclictest33-21ksoftirqd/223:55:002
23608994036,2cyclictest41-21ksoftirqd/323:55:013
23607994035,3cyclictest33-21ksoftirqd/221:51:082
138491400,1ptp4l401ktimersoftd/321:53:073
138491400,0ptp4l401ktimersoftd/300:20:213
138491390,0ptp4l401ktimersoftd/322:39:563
23608993733,3cyclictest41-21ksoftirqd/322:54:593
23608993732,3cyclictest41-21ksoftirqd/321:00:003
23607993731,4cyclictest33-21ksoftirqd/219:49:172
134991370,2getstats0-21swapper/323:35:283
134991370,1getstats15512-1kworker/3:2H19:55:023
23608993632,3cyclictest391rcuc/320:10:213
23608993631,3cyclictest41-21ksoftirqd/322:24:593
23608993631,3cyclictest41-21ksoftirqd/321:15:133
23608993631,3cyclictest41-21ksoftirqd/321:00:123
23608993631,3cyclictest41-21ksoftirqd/320:00:183
23608993631,3cyclictest20876-21awk20:10:003
23608993631,3cyclictest20876-21awk20:09:593
23608993630,4cyclictest41-21ksoftirqd/322:08:023
23608993630,4cyclictest41-21ksoftirqd/319:20:013
23607993630,4cyclictest33-21ksoftirqd/220:16:592
23607993630,4cyclictest33-21ksoftirqd/219:27:292
23607993629,4cyclictest33-21ksoftirqd/222:22:372
23606993631,3cyclictest25-21ksoftirqd/123:00:091
23606993630,4cyclictest25-21ksoftirqd/120:51:171
23606993630,4cyclictest25-21ksoftirqd/120:18:521
23606993630,4cyclictest25-21ksoftirqd/120:07:081
23606993630,4cyclictest25-21ksoftirqd/120:07:071
23606993630,4cyclictest25-21ksoftirqd/119:36:111
23606993630,4cyclictest25-21ksoftirqd/119:36:111
138491360,0ptp4l401ktimersoftd/319:30:123
23608993530,3cyclictest41-21ksoftirqd/323:55:123
23608993530,3cyclictest41-21ksoftirqd/323:15:173
23608993530,3cyclictest41-21ksoftirqd/320:50:013
23608993529,4cyclictest41-21ksoftirqd/322:33:483
23608993529,3cyclictest25783-21idleruntime-cro20:20:013
23608993528,4cyclictest774-21cron20:34:593
23607993530,3cyclictest33-21ksoftirqd/222:36:002
23607993530,3cyclictest33-21ksoftirqd/220:13:392
23607993529,4cyclictest33-21ksoftirqd/220:53:142
23607993529,4cyclictest33-21ksoftirqd/219:38:252
23607993529,4cyclictest33-21ksoftirqd/219:38:252
23607993529,4cyclictest33-21ksoftirqd/219:10:452
23607993529,4cyclictest33-21ksoftirqd/200:14:022
23607993528,5cyclictest33-21ksoftirqd/221:26:572
23606993530,3cyclictest25-21ksoftirqd/123:35:091
23606993530,3cyclictest25-21ksoftirqd/119:24:041
23606993529,4cyclictest25-21ksoftirqd/123:49:201
23606993529,4cyclictest25-21ksoftirqd/123:32:351
23606993529,4cyclictest25-21ksoftirqd/122:52:081
23606993529,4cyclictest25-21ksoftirqd/121:49:141
23606993529,4cyclictest25-21ksoftirqd/120:12:381
23606993529,4cyclictest25-21ksoftirqd/100:06:221
23606993528,5cyclictest25-21ksoftirqd/123:24:561
23606993512,20cyclictest16787-21cat21:05:161
23606993512,20cyclictest16787-21cat21:05:161
23605993530,3cyclictest9-21ksoftirqd/022:31:420
23605993529,4cyclictest9-21ksoftirqd/000:31:120
23605993528,5cyclictest9-21ksoftirqd/021:41:390
23608993429,3cyclictest41-21ksoftirqd/320:20:093
23608993428,4cyclictest41-21ksoftirqd/322:45:413
23608993422,10cyclictest41-21ksoftirqd/319:10:263
23607993429,3cyclictest33-21ksoftirqd/220:58:422
23607993428,4cyclictest33-21ksoftirqd/223:30:092
23607993428,4cyclictest33-21ksoftirqd/222:25:342
23607993428,4cyclictest33-21ksoftirqd/219:53:122
23607993428,4cyclictest33-21ksoftirqd/219:24:052
23607993428,3cyclictest33-21ksoftirqd/222:08:512
23607993427,5cyclictest33-21ksoftirqd/221:16:252
23606993429,3cyclictest25-21ksoftirqd/122:35:121
23606993428,4cyclictest25-21ksoftirqd/123:54:261
23606993428,4cyclictest25-21ksoftirqd/122:59:421
23606993428,4cyclictest25-21ksoftirqd/122:17:591
23606993428,4cyclictest25-21ksoftirqd/121:31:561
23606993428,4cyclictest25-21ksoftirqd/120:21:121
23606993428,4cyclictest25-21ksoftirqd/119:19:021
23606993428,3cyclictest25-21ksoftirqd/100:02:071
23605993429,3cyclictest9-21ksoftirqd/019:45:010
23605993428,4cyclictest9-21ksoftirqd/022:52:200
23605993428,4cyclictest9-21ksoftirqd/022:21:510
23605993428,4cyclictest9-21ksoftirqd/019:30:280
23605993428,4cyclictest9-21ksoftirqd/000:05:110
23608993329,2cyclictest41-21ksoftirqd/322:30:003
23608993328,3cyclictest41-21ksoftirqd/319:35:113
23608993328,3cyclictest41-21ksoftirqd/319:35:113
23608993327,4cyclictest41-21ksoftirqd/323:03:413
23608993327,4cyclictest41-21ksoftirqd/322:19:333
23608993327,4cyclictest41-21ksoftirqd/322:10:103
23608993327,4cyclictest41-21ksoftirqd/320:28:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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