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2026-07-25 - 04:15
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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 Sat Jul 25, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117822231164,22sleep20-21swapper/219:08:022
139491229169,49phc2sys0-21swapper/319:05:133
116772205172,23sleep00-21swapper/019:06:390
115912203169,22sleep10-21swapper/119:05:401
981821540,6sleep31223099cyclictest22:25:193
139391790,1ptp4l15485-21users22:35:253
139391750,1ptp4l391rcuc/320:25:153
113852650,2sleep00-21swapper/023:35:210
82512590,5sleep09-21ksoftirqd/000:35:300
12227995723,4cyclictest9-21ksoftirqd/021:35:130
139391530,1ptp4l391rcuc/320:09:193
12227995220,4cyclictest9-21ksoftirqd/023:30:230
263912510,1sleep20-21swapper/220:45:172
12227995122,7cyclictest9-21ksoftirqd/020:00:010
12227995121,4cyclictest9-21ksoftirqd/021:25:170
12227995118,5cyclictest9-21ksoftirqd/019:25:000
12227995117,4cyclictest9-21ksoftirqd/023:40:150
12227995115,6cyclictest9-21ksoftirqd/022:55:250
12227995114,6cyclictest9-21ksoftirqd/021:15:240
12227995023,7cyclictest9-21ksoftirqd/022:05:150
12227995020,4cyclictest9-21ksoftirqd/020:10:240
12227995018,6cyclictest9-21ksoftirqd/000:00:280
12227995018,3cyclictest9-21ksoftirqd/019:35:250
12227995012,5cyclictest9-21ksoftirqd/021:00:200
12227994919,7cyclictest9-21ksoftirqd/022:25:250
12227994919,5cyclictest9-21ksoftirqd/019:15:140
12227994918,5cyclictest9-21ksoftirqd/021:00:000
12227994917,5cyclictest9-21ksoftirqd/023:15:130
12227994915,6cyclictest9-21ksoftirqd/021:20:250
12227994915,5cyclictest9-21ksoftirqd/020:25:120
1222999481,45cyclictest9902-21kworker/2:019:10:232
12227994819,4cyclictest9-21ksoftirqd/022:45:140
12227994819,4cyclictest9-21ksoftirqd/022:45:140
12227994818,7cyclictest9-21ksoftirqd/022:50:150
12227994818,7cyclictest9-21ksoftirqd/022:15:200
12227994818,4cyclictest9-21ksoftirqd/023:55:220
12227994818,4cyclictest9-21ksoftirqd/023:05:260
12227994816,5cyclictest9-21ksoftirqd/021:50:150
12227994816,5cyclictest9-21ksoftirqd/019:30:260
12227994816,4cyclictest9-21ksoftirqd/000:30:270
12227994721,7cyclictest9-21ksoftirqd/019:40:160
12227994720,6cyclictest9-21ksoftirqd/021:35:000
12227994717,6cyclictest9-21ksoftirqd/019:45:180
12227994716,5cyclictest9-21ksoftirqd/019:50:250
12227994715,4cyclictest9-21ksoftirqd/000:15:240
12227994714,5cyclictest9-21ksoftirqd/023:25:240
12227994714,5cyclictest9-21ksoftirqd/022:30:250
1223099462,43cyclictest41-21ksoftirqd/321:53:133
12229994615,29cyclictest9902-21kworker/2:020:55:332
1222799468,4cyclictest9-21ksoftirqd/020:50:220
12227994619,4cyclictest9-21ksoftirqd/022:35:350
12227994619,4cyclictest9-21ksoftirqd/021:10:250
12227994618,7cyclictest9-21ksoftirqd/022:20:250
12227994618,7cyclictest9-21ksoftirqd/021:05:230
12227994616,4cyclictest9-21ksoftirqd/020:40:210
12227994615,6cyclictest9-21ksoftirqd/019:25:280
12227994614,5cyclictest9-21ksoftirqd/020:35:260
12227994614,5cyclictest9-21ksoftirqd/000:10:200
12227994611,4cyclictest9-21ksoftirqd/019:10:160
12227994515,4cyclictest9-21ksoftirqd/022:10:180
12227994514,6cyclictest9-21ksoftirqd/020:05:250
12227994513,5cyclictest9-21ksoftirqd/023:50:230
12227994513,5cyclictest9-21ksoftirqd/023:00:130
12227994512,6cyclictest9-21ksoftirqd/021:45:130
1223099445,37cyclictest7070-21kworker/3:019:36:143
1222799449,5cyclictest9-21ksoftirqd/000:25:170
12227994413,4cyclictest9-21ksoftirqd/020:15:230
12227994412,10cyclictest9-21ksoftirqd/020:45:170
12227994411,7cyclictest9-21ksoftirqd/023:45:240
139391430,0ptp4l401ktimersoftd/321:10:173
139391430,0ptp4l401ktimersoftd/300:11:313
1223099433,39cyclictest24691-21kworker/3:221:41:443
12227994314,4cyclictest9-21ksoftirqd/020:30:250
1222799431,3cyclictest9-21ksoftirqd/000:05:260
139391420,0ptp4l401ktimersoftd/323:56:143
139391420,0ptp4l401ktimersoftd/323:47:203
12228994237,3cyclictest27963-21cron23:05:011
12227994217,6cyclictest9-21ksoftirqd/021:45:010
12227994215,6cyclictest9-21ksoftirqd/021:55:190
139391410,0ptp4l401ktimersoftd/322:50:133
139391410,0ptp4l401ktimersoftd/322:20:253
139391410,0ptp4l401ktimersoftd/319:41:103
139391410,0ptp4l401ktimersoftd/300:15:253
1222799417,5cyclictest9-21ksoftirqd/023:15:000
12227994131,3cyclictest9-21ksoftirqd/022:45:000
12227994112,4cyclictest9-21ksoftirqd/022:03:180
139391400,2ptp4l391rcuc/319:55:183
12229994014,25cyclictest16920-21kworker/2:200:21:442
12229994014,25cyclictest16920-21kworker/2:200:21:442
1222799406,4cyclictest9-21ksoftirqd/023:25:000
57898390,3rtkit-daemon207-21systemd-journal23:41:081
12229993921,16cyclictest6243-21cron00:35:012
12228993934,3cyclictest25-21ksoftirqd/122:00:001
1222799394,2cyclictest121rcu_preempt20:20:130
1222799393,2cyclictest121rcu_preempt20:00:120
1222799393,2cyclictest121rcu_preempt20:00:120
12229993814,5cyclictest14758-21wc21:30:002
12228993833,3cyclictest25-21ksoftirqd/122:30:001
12228993832,3cyclictest25-21ksoftirqd/121:05:011
12227993832,3cyclictest9-21ksoftirqd/000:20:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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