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2026-09-23 - 03:56
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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 rackdslot4.osadl.org (updated Wed Sep 23, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591229165,22phc2sys0-21swapper/319:07:473
183702204171,22sleep10-21swapper/119:05:591
185382203170,22sleep00-21swapper/019:08:120
184832200168,21sleep20-21swapper/219:07:292
1267221370,6sleep11897299cyclictest20:00:231
1384911120,1ptp4l24720-21sed23:40:173
53712670,5sleep15374-21switchtime21:55:251
324052560,4sleep232411-21needreboot21:45:232
138491560,1ptp4l401ktimersoftd/322:07:223
50798490,1rtkit-daemon506-21rtkit-daemon22:40:560
18972994918,3cyclictest25-21ksoftirqd/122:01:131
101342460,2sleep20-21swapper/219:55:232
138491450,0ptp4l401ktimersoftd/322:15:113
138491440,1ptp4l401ktimersoftd/321:51:483
138491440,1ptp4l401ktimersoftd/321:51:483
138491440,1ptp4l401ktimersoftd/320:40:023
138491440,0ptp4l401ktimersoftd/300:15:123
138491430,0ptp4l401ktimersoftd/319:35:233
18973994236,3cyclictest13560-21idleruntime-cro20:05:002
18972994219,7cyclictest25-21ksoftirqd/122:55:491
18972994136,3cyclictest8555-21turbostat21:00:001
18973993934,3cyclictest33-21ksoftirqd/220:20:002
1897299397,6cyclictest25-21ksoftirqd/122:20:011
138491390,12ptp4l0-21swapper/323:10:183
138491390,0ptp4l401ktimersoftd/300:10:013
18974993832,4cyclictest41-21ksoftirqd/300:03:403
18974993831,4cyclictest41-21ksoftirqd/321:15:133
138491380,0ptp4l401ktimersoftd/322:35:323
18974993730,5cyclictest41-21ksoftirqd/320:22:363
18974993730,4cyclictest41-21ksoftirqd/323:50:443
18974993730,4cyclictest41-21ksoftirqd/319:28:283
18974993730,4cyclictest41-21ksoftirqd/319:28:283
18973993731,4cyclictest33-21ksoftirqd/223:52:522
18973993731,4cyclictest33-21ksoftirqd/220:14:042
18973993731,4cyclictest33-21ksoftirqd/200:32:082
18973993730,4cyclictest33-21ksoftirqd/223:35:072
18972993731,4cyclictest25-21ksoftirqd/119:21:281
1897299372,4cyclictest25-21ksoftirqd/120:20:221
18972993711,5cyclictest25-21ksoftirqd/120:11:321
18971993731,4cyclictest9-21ksoftirqd/023:35:570
18971993731,4cyclictest9-21ksoftirqd/000:37:460
18971993730,5cyclictest9-21ksoftirqd/023:46:460
18971993730,4cyclictest9-21ksoftirqd/023:33:450
18974993630,4cyclictest41-21ksoftirqd/323:15:163
18974993630,4cyclictest41-21ksoftirqd/320:46:073
1897499360,2cyclictest121rcu_preempt23:05:353
18973993630,4cyclictest33-21ksoftirqd/223:48:112
18973993630,4cyclictest33-21ksoftirqd/223:22:152
18973993630,4cyclictest33-21ksoftirqd/222:59:002
18973993630,4cyclictest33-21ksoftirqd/222:28:362
18973993629,4cyclictest33-21ksoftirqd/219:30:072
18973993629,4cyclictest33-21ksoftirqd/219:23:052
18973993629,4cyclictest33-21ksoftirqd/200:27:462
18972993629,4cyclictest25-21ksoftirqd/120:26:551
18972993619,7cyclictest25-21ksoftirqd/121:02:511
18971993630,4cyclictest9-21ksoftirqd/023:26:060
18971993630,4cyclictest9-21ksoftirqd/022:30:500
18971993629,4cyclictest9-21ksoftirqd/019:13:200
138491360,0ptp4l401ktimersoftd/300:25:163
18974993530,3cyclictest41-21ksoftirqd/319:35:003
18974993529,4cyclictest41-21ksoftirqd/323:36:423
18974993529,4cyclictest41-21ksoftirqd/322:57:493
18974993529,4cyclictest41-21ksoftirqd/321:37:373
18974993529,4cyclictest41-21ksoftirqd/321:06:323
18974993528,4cyclictest41-21ksoftirqd/323:29:063
18973993530,3cyclictest33-21ksoftirqd/223:43:052
18973993530,3cyclictest33-21ksoftirqd/222:51:392
18973993530,3cyclictest33-21ksoftirqd/220:20:112
18973993529,4cyclictest33-21ksoftirqd/221:14:142
18973993529,4cyclictest33-21ksoftirqd/220:26:482
18973993529,4cyclictest33-21ksoftirqd/219:13:152
18973993529,4cyclictest33-21ksoftirqd/200:20:362
18973993528,4cyclictest33-21ksoftirqd/222:18:122
18972993529,4cyclictest25-21ksoftirqd/121:35:401
18972993529,4cyclictest25-21ksoftirqd/119:38:451
1897299352,5cyclictest25-21ksoftirqd/119:25:161
1897299352,5cyclictest25-21ksoftirqd/119:25:151
1897299352,4cyclictest25-21ksoftirqd/120:38:571
1897299351,4cyclictest25-21ksoftirqd/119:48:581
18972993512,3cyclictest25-21ksoftirqd/100:26:031
18971993530,3cyclictest9-21ksoftirqd/022:20:150
18971993529,4cyclictest9-21ksoftirqd/023:02:150
18971993529,4cyclictest9-21ksoftirqd/022:49:400
18971993529,4cyclictest9-21ksoftirqd/021:52:110
18971993529,4cyclictest9-21ksoftirqd/021:52:100
18971993529,4cyclictest9-21ksoftirqd/021:39:350
18971993529,4cyclictest9-21ksoftirqd/020:33:320
18971993529,4cyclictest9-21ksoftirqd/020:07:520
18971993529,4cyclictest9-21ksoftirqd/000:31:580
18971993528,4cyclictest9-21ksoftirqd/021:49:220
1897199350,2cyclictest121rcu_preempt00:06:060
18974993429,3cyclictest41-21ksoftirqd/321:14:513
18974993429,3cyclictest41-21ksoftirqd/300:37:163
18974993428,4cyclictest41-21ksoftirqd/321:26:463
18974993428,4cyclictest41-21ksoftirqd/320:07:153
18974993428,4cyclictest41-21ksoftirqd/320:03:303
18974993428,4cyclictest41-21ksoftirqd/319:24:473
18974993427,4cyclictest41-21ksoftirqd/319:44:333
18973993429,3cyclictest33-21ksoftirqd/223:32:522
18973993429,3cyclictest33-21ksoftirqd/219:25:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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