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2026-06-17 - 17:51
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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 Wed Jun 17, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
160952228164,52sleep30-21swapper/307:07:173
162252202168,23sleep00-21swapper/007:08:510
160432202169,22sleep10-21swapper/107:06:341
140862199167,21sleep20-21swapper/207:05:032
2776821440,5sleep31660999cyclictest08:35:223
1385918865,12phc2sys0-21swapper/307:10:003
138491580,1ptp4l401ktimersoftd/310:05:193
314642550,2sleep1231rcuc/107:40:001
138491550,1ptp4l401ktimersoftd/311:23:343
1660999463,40cyclictest3562-21turbostat11:05:003
50798440,8rtkit-daemon0-21swapper/111:56:001
16607994437,3cyclictest3947-21sh07:50:001
16607994437,3cyclictest3947-21sh07:50:001
16608994337,3cyclictest11303-21sh12:24:592
16606994325,15cyclictest9-21ksoftirqd/009:37:590
50798420,6rtkit-daemon0-21swapper/109:45:211
16609994237,3cyclictest16932-21fschecks_count10:25:153
1660699423,2cyclictest0-21swapper/009:27:380
138491420,0ptp4l401ktimersoftd/309:11:263
138491420,0ptp4l401ktimersoftd/308:31:223
138491420,0ptp4l401ktimersoftd/307:16:163
1660699410,3cyclictest6133-21taskset12:12:160
1631524132,4sleep10-21swapper/107:10:001
138491410,0ptp4l401ktimersoftd/310:01:533
138491410,0ptp4l401ktimersoftd/310:01:523
16609994021,17cyclictest41-21ksoftirqd/307:35:123
16606994033,5cyclictest9-21ksoftirqd/009:59:590
138491400,0ptp4l401ktimersoftd/311:52:163
16607993932,4cyclictest25-21ksoftirqd/108:00:011
1660699390,2cyclictest13203-21seq09:10:450
138491390,1ptp4l401ktimersoftd/307:30:023
1660899381,35cyclictest13892-21basename11:25:002
16607993818,19cyclictest0-21swapper/108:21:041
16606993833,3cyclictest9-21ksoftirqd/008:20:000
16606993819,16cyclictest9-21ksoftirqd/008:11:580
50798370,7rtkit-daemon0-21swapper/111:31:341
16609993731,4cyclictest41-21ksoftirqd/312:04:223
16608993731,4cyclictest33-21ksoftirqd/211:29:162
1660899370,36cyclictest0-21swapper/209:01:332
16607993731,4cyclictest25-21ksoftirqd/110:35:121
16607993731,4cyclictest25-21ksoftirqd/109:23:521
16607993731,4cyclictest25-21ksoftirqd/108:38:291
16607993731,4cyclictest25-21ksoftirqd/108:08:561
305102360,2sleep30-21swapper/309:45:273
16609993631,3cyclictest41-21ksoftirqd/308:20:003
16609993630,4cyclictest41-21ksoftirqd/310:17:163
16609993630,4cyclictest41-21ksoftirqd/309:01:063
16608993630,4cyclictest33-21ksoftirqd/211:33:212
16608993630,4cyclictest33-21ksoftirqd/210:49:242
16608993630,4cyclictest33-21ksoftirqd/209:49:232
16608993629,4cyclictest33-21ksoftirqd/210:09:052
16607993630,4cyclictest25-21ksoftirqd/112:36:581
16607993630,4cyclictest25-21ksoftirqd/112:32:521
16607993630,4cyclictest25-21ksoftirqd/111:17:581
16606993629,4cyclictest9-21ksoftirqd/008:40:330
1660699362,31cyclictest15196-21strings10:20:210
16609993530,3cyclictest41-21ksoftirqd/309:18:113
16609993530,3cyclictest18807-21idleruntime-cro11:35:003
16609993530,3cyclictest11044-21sh09:10:013
16609993529,4cyclictest41-21ksoftirqd/312:36:563
16609993529,4cyclictest41-21ksoftirqd/311:17:163
16609993529,4cyclictest41-21ksoftirqd/310:59:523
16609993529,4cyclictest41-21ksoftirqd/309:57:223
16609993529,4cyclictest41-21ksoftirqd/308:07:383
16608993530,3cyclictest33-21ksoftirqd/211:19:492
16608993530,3cyclictest33-21ksoftirqd/207:22:232
16608993529,4cyclictest33-21ksoftirqd/212:16:412
16608993529,4cyclictest33-21ksoftirqd/211:52:512
16608993529,4cyclictest33-21ksoftirqd/210:39:332
16608993529,4cyclictest33-21ksoftirqd/209:06:382
16608993529,4cyclictest33-21ksoftirqd/208:39:102
16608993529,3cyclictest33-21ksoftirqd/210:32:172
1660899350,2cyclictest0-21swapper/208:23:162
16607993529,4cyclictest25-21ksoftirqd/108:13:461
16606993530,3cyclictest9-21ksoftirqd/011:35:130
16606993529,4cyclictest9-21ksoftirqd/010:59:400
16606993529,4cyclictest9-21ksoftirqd/010:52:260
16606993529,4cyclictest9-21ksoftirqd/010:29:440
16606993529,4cyclictest9-21ksoftirqd/009:44:350
16606993513,20cyclictest27445-21sed08:35:180
16606993512,20cyclictest10488-21sed10:10:240
1660699350,3cyclictest12673-21kernelversion11:20:180
138491350,0ptp4l401ktimersoftd/307:55:223
16609993428,4cyclictest41-21ksoftirqd/312:06:403
16609993428,4cyclictest41-21ksoftirqd/310:10:093
16609993428,4cyclictest41-21ksoftirqd/308:57:533
16608993429,3cyclictest9849-21irqrtprio08:00:182
16608993428,4cyclictest33-21ksoftirqd/212:12:482
16608993428,4cyclictest33-21ksoftirqd/209:57:492
16608993428,4cyclictest33-21ksoftirqd/209:34:512
16608993428,4cyclictest33-21ksoftirqd/208:57:482
16608993428,4cyclictest33-21ksoftirqd/208:26:142
16608993428,4cyclictest33-21ksoftirqd/208:13:192
16608993428,3cyclictest33-21ksoftirqd/207:58:492
16608993427,5cyclictest33-21ksoftirqd/212:32:102
16607993429,3cyclictest25-21ksoftirqd/109:58:581
16607993428,4cyclictest25-21ksoftirqd/109:15:401
16607993428,4cyclictest25-21ksoftirqd/108:59:551
16607993427,4cyclictest25-21ksoftirqd/108:27:451
16606993429,3cyclictest9-21ksoftirqd/012:06:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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