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2026-06-10 - 07:56
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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 rackdslot3.osadl.org (updated Wed Jun 10, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8872228199,19sleep00-21swapper/019:05:580
139491206173,22phc2sys0-21swapper/319:05:333
8892203171,21sleep20-21swapper/219:06:002
8682200168,21sleep10-21swapper/119:05:441
526321590,8sleep1151999cyclictest23:45:241
40092560,3sleep24015-21timerandwakeup22:35:252
139391550,1ptp4l401ktimersoftd/320:45:353
190312540,4sleep319026-21apt-config23:10:003
131862540,1sleep30-21swapper/322:55:243
301602500,2sleep130141-21apt-config00:40:001
139391500,1ptp4l401ktimersoftd/322:17:203
139391500,0ptp4l401ktimersoftd/320:57:393
139391470,0ptp4l401ktimersoftd/300:07:033
1519994440,2cyclictest25-21ksoftirqd/122:30:011
57898430,8rtkit-daemon0-21swapper/122:11:361
139391430,0ptp4l401ktimersoftd/323:00:023
139391420,0ptp4l401ktimersoftd/323:10:333
139391420,0ptp4l401ktimersoftd/322:40:173
1521994126,7cyclictest41-21ksoftirqd/319:50:153
1520994133,5cyclictest33-21ksoftirqd/200:15:142
1519994135,3cyclictest25-21ksoftirqd/119:25:001
139391410,0ptp4l401ktimersoftd/322:36:273
1520993935,3cyclictest35892irq/126-enp1s0-23:56:082
1519993935,2cyclictest25-21ksoftirqd/100:15:001
1519993930,6cyclictest25-21ksoftirqd/123:00:111
1519993834,2cyclictest25-21ksoftirqd/123:10:001
1519993833,3cyclictest25-21ksoftirqd/121:35:001
1519993833,3cyclictest25-21ksoftirqd/120:10:001
1519993831,3cyclictest25-21ksoftirqd/123:40:001
1518993822,5cyclictest9-21ksoftirqd/021:15:160
1521993731,4cyclictest41-21ksoftirqd/322:06:063
1519993732,3cyclictest25-21ksoftirqd/121:40:001
1519993732,3cyclictest25-21ksoftirqd/121:05:001
1519993732,3cyclictest25-21ksoftirqd/120:10:191
1519993731,4cyclictest25-21ksoftirqd/123:11:511
1519993731,3cyclictest25-21ksoftirqd/119:50:011
1519993730,5cyclictest25-21ksoftirqd/123:16:401
151999370,2cyclictest121rcu_preempt21:15:161
139391370,0ptp4l401ktimersoftd/320:35:243
139391370,0ptp4l401ktimersoftd/320:05:253
139391370,0ptp4l401ktimersoftd/300:20:163
1521993630,4cyclictest41-21ksoftirqd/319:12:073
1520993631,3cyclictest6982-21cron22:45:002
1520993631,3cyclictest33-21ksoftirqd/220:55:002
1520993630,4cyclictest33-21ksoftirqd/222:54:512
1520993630,4cyclictest33-21ksoftirqd/221:15:062
1519993631,3cyclictest25-21ksoftirqd/121:25:011
1519993631,3cyclictest25-21ksoftirqd/121:05:141
1519993631,3cyclictest25-21ksoftirqd/120:45:181
1519993630,4cyclictest25-21ksoftirqd/123:27:231
1519993630,4cyclictest25-21ksoftirqd/122:20:001
1519993630,4cyclictest25-21ksoftirqd/121:46:021
1519993630,4cyclictest25-21ksoftirqd/120:20:491
1519993630,4cyclictest25-21ksoftirqd/119:42:551
1519993630,4cyclictest25-21ksoftirqd/119:35:151
1519993630,4cyclictest25-21ksoftirqd/100:03:181
1518993631,3cyclictest9-21ksoftirqd/023:55:250
1518993631,3cyclictest9-21ksoftirqd/019:40:130
1518993631,3cyclictest9-21ksoftirqd/019:13:370
1518993630,4cyclictest9-21ksoftirqd/022:54:040
1518993630,4cyclictest9-21ksoftirqd/021:11:400
1518993630,4cyclictest9-21ksoftirqd/020:08:440
1518993630,3cyclictest9-21ksoftirqd/021:10:010
139391360,0ptp4l401ktimersoftd/320:40:183
139391360,0ptp4l401ktimersoftd/319:30:133
1521993530,3cyclictest41-21ksoftirqd/300:35:003
1521993529,4cyclictest41-21ksoftirqd/321:58:153
1521993529,4cyclictest41-21ksoftirqd/319:29:363
1520993531,2cyclictest33-21ksoftirqd/223:30:002
1520993530,3cyclictest33-21ksoftirqd/223:50:592
1520993529,4cyclictest33-21ksoftirqd/223:49:062
1520993529,4cyclictest33-21ksoftirqd/220:30:092
1520993518,9cyclictest33-21ksoftirqd/200:30:122
152099350,2cyclictest121rcu_preempt19:50:142
1519993531,3cyclictest25-21ksoftirqd/100:00:011
1519993531,2cyclictest25-21ksoftirqd/122:40:001
1519993529,4cyclictest25-21ksoftirqd/122:03:391
1519993529,4cyclictest25-21ksoftirqd/121:56:411
1519993529,4cyclictest25-21ksoftirqd/120:56:031
1519993529,4cyclictest25-21ksoftirqd/100:17:061
1519993529,3cyclictest25-21ksoftirqd/120:00:201
1518993531,3cyclictest9-21ksoftirqd/022:40:000
1518993530,3cyclictest9-21ksoftirqd/019:40:000
1518993530,3cyclictest9-21ksoftirqd/000:20:010
1518993529,4cyclictest9-21ksoftirqd/000:31:050
1521993429,3cyclictest41-21ksoftirqd/321:50:183
1521993429,3cyclictest41-21ksoftirqd/320:20:583
1521993428,4cyclictest41-21ksoftirqd/323:50:363
1521993428,4cyclictest41-21ksoftirqd/322:23:103
1521993428,4cyclictest41-21ksoftirqd/321:05:443
1521993428,4cyclictest41-21ksoftirqd/321:04:443
1520993430,3cyclictest33-21ksoftirqd/200:37:122
1520993429,3cyclictest33-21ksoftirqd/220:20:012
1520993429,3cyclictest33-21ksoftirqd/200:10:132
1520993428,4cyclictest33-21ksoftirqd/220:10:362
1520993428,4cyclictest33-21ksoftirqd/219:18:412
1519993429,3cyclictest25-21ksoftirqd/122:56:521
1519993429,3cyclictest25-21ksoftirqd/122:24:491
1519993429,3cyclictest25-21ksoftirqd/120:35:201
1519993429,3cyclictest25-21ksoftirqd/119:25:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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