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2026-08-02 - 06:25
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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 Sun Aug 02, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71932245200,34sleep20-21swapper/219:05:592
138591226183,33phc2sys0-21swapper/319:09:583
73592204171,22sleep10-21swapper/119:08:031
73532204170,22sleep00-21swapper/019:07:580
1818721640,3sleep218189-21fschecks_count19:30:142
31622580,2sleep30-21swapper/300:25:133
59862570,6sleep1780299cyclictest20:10:201
780199553,2cyclictest0-21swapper/021:20:470
138491550,1ptp4l401ktimersoftd/320:07:563
193872540,2sleep20-21swapper/222:45:272
780299492,44cyclictest22421-21idleruntime-cro21:50:011
10692470,2sleep20-21swapper/221:05:172
7802994639,4cyclictest29723-21sh23:10:001
7801994611,26cyclictest14852-21seq19:23:250
7801994510,26cyclictest31924-21seq23:11:570
780199449,25cyclictest12528-21seq20:23:270
138491440,0ptp4l401ktimersoftd/322:25:233
7801994329,11cyclictest9-21ksoftirqd/020:41:590
206252430,2sleep00-21swapper/023:55:170
138491430,0ptp4l401ktimersoftd/323:05:253
138491420,0ptp4l401ktimersoftd/320:20:273
138491410,0ptp4l401ktimersoftd/322:38:233
138491410,0ptp4l401ktimersoftd/321:27:023
7804994026,12cyclictest41-21ksoftirqd/321:15:013
7802994035,3cyclictest25-21ksoftirqd/123:20:001
780199401,3cyclictest9667-21seq22:28:040
138491400,0ptp4l401ktimersoftd/322:50:273
7804993933,3cyclictest41-21ksoftirqd/322:20:003
7802993935,3cyclictest25-21ksoftirqd/122:20:001
7802993934,2cyclictest25-21ksoftirqd/120:40:001
7802993933,3cyclictest25-21ksoftirqd/121:35:001
7802993933,3cyclictest25-21ksoftirqd/119:45:121
7801993927,10cyclictest9-21ksoftirqd/019:30:100
138491390,0ptp4l401ktimersoftd/321:40:153
7804993832,3cyclictest41-21ksoftirqd/319:15:193
7803993832,4cyclictest33-21ksoftirqd/222:06:432
7802993834,3cyclictest25-21ksoftirqd/100:19:591
7802993833,3cyclictest25-21ksoftirqd/120:35:001
7802993832,3cyclictest25-21ksoftirqd/121:40:001
7802993831,5cyclictest25-21ksoftirqd/122:48:151
7802993831,4cyclictest25-21ksoftirqd/122:10:121
780199380,4cyclictest29940-21seq20:58:210
7804993732,3cyclictest41-21ksoftirqd/321:00:003
7804993730,5cyclictest41-21ksoftirqd/300:14:533
7804993730,4cyclictest41-21ksoftirqd/323:40:113
7804993730,4cyclictest41-21ksoftirqd/322:42:273
7803993732,3cyclictest33-21ksoftirqd/222:15:132
7802993732,3cyclictest25-21ksoftirqd/123:40:011
7802993732,3cyclictest25-21ksoftirqd/119:25:001
7802993731,3cyclictest25-21ksoftirqd/123:05:001
7802993731,3cyclictest25-21ksoftirqd/123:05:001
7804993631,3cyclictest41-21ksoftirqd/320:00:203
7804993630,3cyclictest41-21ksoftirqd/323:59:593
7804993630,3cyclictest41-21ksoftirqd/323:37:083
7803993631,3cyclictest33-21ksoftirqd/200:20:002
7803993630,4cyclictest33-21ksoftirqd/223:54:592
7803993630,4cyclictest33-21ksoftirqd/223:16:082
7803993630,4cyclictest33-21ksoftirqd/220:01:432
7803993630,4cyclictest33-21ksoftirqd/200:35:002
7803993629,5cyclictest33-21ksoftirqd/222:57:142
7802993631,3cyclictest25-21ksoftirqd/122:00:001
7802993631,3cyclictest25-21ksoftirqd/100:30:001
7802993630,4cyclictest25-21ksoftirqd/122:38:521
7802993628,5cyclictest25-21ksoftirqd/123:41:301
7801993630,4cyclictest9-21ksoftirqd/021:35:520
50798360,2rtkit-daemon0-21swapper/019:39:240
7804993530,3cyclictest41-21ksoftirqd/321:10:003
7804993530,3cyclictest41-21ksoftirqd/319:15:003
7804993529,3cyclictest41-21ksoftirqd/323:50:183
7804993529,3cyclictest41-21ksoftirqd/321:51:433
7804993529,3cyclictest41-21ksoftirqd/319:40:163
7803993530,3cyclictest33-21ksoftirqd/219:24:412
7803993529,4cyclictest33-21ksoftirqd/221:10:392
7803993529,4cyclictest33-21ksoftirqd/200:00:452
7802993530,3cyclictest25-21ksoftirqd/122:50:111
7802993530,3cyclictest25-21ksoftirqd/119:35:181
7802993530,3cyclictest25-21ksoftirqd/119:35:001
7802993530,3cyclictest25-21ksoftirqd/119:10:261
7802993530,3cyclictest25-21ksoftirqd/100:20:021
7802993530,3cyclictest25-21ksoftirqd/100:13:011
7802993529,3cyclictest25-21ksoftirqd/123:15:011
7802993529,3cyclictest25-21ksoftirqd/120:55:001
7802993528,4cyclictest25-21ksoftirqd/100:37:111
7801993530,3cyclictest9-21ksoftirqd/021:17:190
7801993529,4cyclictest9-21ksoftirqd/023:09:440
7801993529,4cyclictest9-21ksoftirqd/000:22:370
7801993528,5cyclictest9-21ksoftirqd/019:10:300
780199350,4cyclictest27325-21taskset19:48:000
50798350,2rtkit-daemon506-21rtkit-daemon21:38:202
138491350,0ptp4l401ktimersoftd/319:47:393
7804993429,3cyclictest41-21ksoftirqd/323:20:223
7804993428,4cyclictest41-21ksoftirqd/323:02:373
7804993428,4cyclictest41-21ksoftirqd/323:02:373
7804993428,4cyclictest41-21ksoftirqd/322:30:113
7804993428,4cyclictest41-21ksoftirqd/322:30:113
7804993428,4cyclictest41-21ksoftirqd/320:53:113
7804993428,4cyclictest41-21ksoftirqd/320:48:173
7804993428,4cyclictest41-21ksoftirqd/320:34:493
7804993428,4cyclictest41-21ksoftirqd/319:24:373
7804993428,4cyclictest41-21ksoftirqd/300:01:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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