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2026-08-10 - 05:40
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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 Mon Aug 10, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491224158,22phc2sys0-21swapper/319:09:113
139491224158,22phc2sys0-21swapper/319:09:113
279742205142,21sleep10-21swapper/119:05:441
279742205142,21sleep10-21swapper/119:05:441
261672203170,22sleep20-21swapper/219:05:062
261672203170,22sleep20-21swapper/219:05:052
282042202169,22sleep00-21swapper/019:08:450
282042202169,22sleep00-21swapper/019:08:450
1922821480,4sleep32859699cyclictest23:20:033
1393911150,1ptp4l4733-21apt-get22:50:113
28594997513,60cyclictest0-21swapper/122:00:331
2859499620,1cyclictest0-21swapper/120:35:331
139391520,1ptp4l391rcuc/320:40:053
139391510,1ptp4l401ktimersoftd/323:47:273
2859499499,38cyclictest0-21swapper/123:57:531
28594994816,30cyclictest0-21swapper/120:03:131
203392470,2sleep30-21swapper/300:29:593
28594994616,28cyclictest0-21swapper/121:00:231
139391440,0ptp4l401ktimersoftd/319:28:573
2859599430,40cyclictest3255-21cron23:54:592
139391430,0ptp4l401ktimersoftd/323:40:553
139391430,0ptp4l401ktimersoftd/322:22:493
2859499420,40cyclictest0-21swapper/121:20:331
139391420,0ptp4l401ktimersoftd/322:05:233
139391420,0ptp4l401ktimersoftd/321:30:203
28594994126,13cyclictest25-21ksoftirqd/122:10:001
139391410,1ptp4l401ktimersoftd/321:20:493
139391400,1ptp4l401ktimersoftd/322:30:193
28595993934,3cyclictest33-21ksoftirqd/223:10:002
28595993933,3cyclictest33-21ksoftirqd/222:55:002
28595993833,2cyclictest33-21ksoftirqd/223:25:002
28594993831,4cyclictest25-21ksoftirqd/123:05:291
2859499380,37cyclictest0-21swapper/123:50:331
28593993833,3cyclictest9-21ksoftirqd/019:40:000
139391380,1ptp4l401ktimersoftd/319:13:103
28595993732,3cyclictest33-21ksoftirqd/221:35:002
28595993731,3cyclictest33-21ksoftirqd/221:35:172
28595993731,3cyclictest33-21ksoftirqd/200:30:002
28595993730,4cyclictest33-21ksoftirqd/223:45:012
28595993725,9cyclictest33-21ksoftirqd/219:55:282
28594993731,4cyclictest25-21ksoftirqd/123:16:171
2859499370,3cyclictest121rcu_preempt22:59:591
28593993733,2cyclictest9-21ksoftirqd/019:45:000
28593993732,3cyclictest9-21ksoftirqd/020:20:000
139391370,0ptp4l401ktimersoftd/300:21:563
28596993631,3cyclictest41-21ksoftirqd/323:51:043
28595993631,3cyclictest33-21ksoftirqd/222:30:172
28595993631,3cyclictest33-21ksoftirqd/220:45:002
28595993631,2cyclictest33-21ksoftirqd/219:50:162
28595993630,4cyclictest33-21ksoftirqd/223:56:372
28595993630,3cyclictest33-21ksoftirqd/220:55:222
28595993630,3cyclictest33-21ksoftirqd/219:40:142
28595993625,9cyclictest33-21ksoftirqd/222:55:282
28594993631,3cyclictest25-21ksoftirqd/100:02:491
28594993630,4cyclictest25-21ksoftirqd/121:30:501
28594993630,4cyclictest25-21ksoftirqd/121:00:001
28594993630,4cyclictest25-21ksoftirqd/119:20:371
28594993630,4cyclictest25-21ksoftirqd/100:16:291
2859499360,2cyclictest0-21swapper/119:10:441
28593993630,3cyclictest9-21ksoftirqd/022:20:010
28593993618,10cyclictest9-21ksoftirqd/000:20:510
139391360,1ptp4l401ktimersoftd/321:52:133
134391360,2getstats0-21swapper/320:45:153
28596993529,4cyclictest41-21ksoftirqd/321:40:473
28596993529,4cyclictest41-21ksoftirqd/320:22:123
28596993529,4cyclictest41-21ksoftirqd/320:16:393
28595993531,2cyclictest33-21ksoftirqd/223:40:012
28595993531,2cyclictest33-21ksoftirqd/223:40:012
28595993531,2cyclictest33-21ksoftirqd/219:50:002
28595993530,3cyclictest33-21ksoftirqd/223:20:012
28595993530,3cyclictest33-21ksoftirqd/221:40:132
28595993530,3cyclictest33-21ksoftirqd/221:05:012
28595993529,4cyclictest33-21ksoftirqd/223:32:472
28595993529,4cyclictest33-21ksoftirqd/222:20:422
28595993529,4cyclictest33-21ksoftirqd/220:23:192
28595993529,4cyclictest33-21ksoftirqd/200:18:082
28595993529,3cyclictest33-21ksoftirqd/223:30:002
28594993530,3cyclictest25-21ksoftirqd/120:25:121
28594993529,4cyclictest25-21ksoftirqd/122:52:501
28594993529,4cyclictest25-21ksoftirqd/119:34:241
28594993529,4cyclictest25-21ksoftirqd/100:25:321
28593993531,2cyclictest9-21ksoftirqd/022:10:010
28593993531,2cyclictest9-21ksoftirqd/021:50:010
28593993530,3cyclictest9-21ksoftirqd/023:15:200
28593993529,4cyclictest9-21ksoftirqd/000:08:390
28593993529,4cyclictest9-21ksoftirqd/000:08:390
28593993529,3cyclictest9-21ksoftirqd/020:30:190
28596993429,3cyclictest41-21ksoftirqd/320:39:433
28596993428,4cyclictest41-21ksoftirqd/320:00:003
2859599345,3cyclictest33-21ksoftirqd/221:55:002
28595993430,3cyclictest33-21ksoftirqd/220:55:002
28595993429,3cyclictest33-21ksoftirqd/223:45:252
28595993429,3cyclictest33-21ksoftirqd/222:10:002
28595993429,3cyclictest33-21ksoftirqd/220:50:002
28595993429,3cyclictest33-21ksoftirqd/220:15:112
28595993429,3cyclictest33-21ksoftirqd/220:10:152
28595993429,3cyclictest33-21ksoftirqd/220:10:152
28595993429,2cyclictest33-21ksoftirqd/219:25:002
28595993428,4cyclictest33-21ksoftirqd/221:45:392
28595993428,4cyclictest33-21ksoftirqd/221:09:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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