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2026-06-24 - 05:52
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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 rackdslot0.osadl.org (updated Wed Jun 24, 2026 00:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23738993433,1cyclictest0-21swapper/123:05:571
23738993432,2cyclictest0-21swapper/123:10:111
23738993432,2cyclictest0-21swapper/121:42:071
23738993332,1cyclictest0-21swapper/123:35:121
23738993129,2cyclictest0-21swapper/122:45:231
23738993129,2cyclictest0-21swapper/121:24:271
23738993129,0cyclictest0-21swapper/121:38:271
23738993028,2cyclictest0-21swapper/122:35:551
23738993028,2cyclictest0-21swapper/122:13:311
23738992929,0cyclictest0-21swapper/122:19:321
23738992928,0cyclictest0-21swapper/120:24:011
23738992827,0cyclictest0-21swapper/120:40:471
23738992818,0cyclictest0-21swapper/100:38:231
2374399274,15cyclictest0-21swapper/222:47:232
23738992717,0cyclictest0-21swapper/121:34:461
23738992617,9cyclictest27769-21kworker/u16:120:56:081
23738992616,10cyclictest21-21ksoftirqd/121:16:511
23738992616,10cyclictest21-21ksoftirqd/121:16:501
23738992515,9cyclictest12228-21kworker/1:123:54:121
23730992424,0cyclictest0-21swapper/021:34:200
2373099240,23cyclictest0-21swapper/022:51:020
2374399230,5cyclictest0-21swapper/223:16:222
2374399230,5cyclictest0-21swapper/200:38:322
2374399230,22cyclictest843-21systemd-network00:12:402
2374399230,20cyclictest0-21swapper/222:56:122
2374399230,20cyclictest0-21swapper/222:56:122
2374399230,18cyclictest2621-21apt-config19:30:012
2373899230,5cyclictest0-21swapper/119:43:401
23730992322,1cyclictest0-21swapper/020:43:170
2373099230,5cyclictest0-21swapper/019:10:130
2374399226,15cyclictest9664-21tr19:40:132
2373899220,21cyclictest843-21systemd-network23:02:331
23730992222,0cyclictest0-21swapper/022:00:430
23730992222,0cyclictest0-21swapper/000:28:470
2373099220,4cyclictest0-21swapper/022:42:320
2373099220,21cyclictest843-21systemd-network23:21:060
2373899217,14cyclictest5155-21kworker/1:023:21:361
2373099214,11cyclictest0-21swapper/020:32:060
23730992121,0cyclictest0-21swapper/023:42:440
23730992121,0cyclictest0-21swapper/022:19:060
23730992121,0cyclictest0-21swapper/021:37:040
2373099210,3cyclictest0-21swapper/021:52:100
2373099210,3cyclictest0-21swapper/021:20:010
2373099210,3cyclictest0-21swapper/021:20:000
2373099210,3cyclictest0-21swapper/000:20:200
2374399203,2cyclictest13525-21date20:45:002
2374399200,19cyclictest0-21swapper/220:33:562
2373899201,18cyclictest0-21swapper/121:55:171
2373899200,20cyclictest0-21swapper/100:18:391
2373899200,19cyclictest843-21systemd-network21:11:121
2373099203,3cyclictest0-21swapper/019:38:280
2373099203,16cyclictest11087-21cut22:35:010
2373099203,16cyclictest11087-21cut22:35:010
23730992020,0cyclictest0-21swapper/021:27:490
2373099200,16cyclictest5672-21cat00:20:000
2374399192,1cyclictest0-21swapper/223:55:152
23743991917,1cyclictest0-21swapper/222:08:392
23743991917,1cyclictest0-21swapper/222:08:392
23743991917,1cyclictest0-21swapper/221:36:272
23743991916,2cyclictest31895-21nfsd421:15:202
23743991916,2cyclictest31895-21nfsd421:15:202
23743991915,3cyclictest0-21swapper/200:05:202
23743991914,4cyclictest3991-21H222:10:212
23743991914,2cyclictest3976-21H222:10:212
2374399191,17cyclictest0-21swapper/221:30:202
2374399190,16cyclictest4099-21H222:10:212
2374399190,16cyclictest3989-21H222:10:212
2374399190,15cyclictest0-21swapper/223:24:002
2373099193,15cyclictest32572-21timerwakeupswit23:10:230
2373099192,2cyclictest19333-21expr19:55:180
2373099192,1cyclictest0-21swapper/021:55:180
2373099192,1cyclictest0-21swapper/021:03:250
2373099192,16cyclictest4808-21smartctl19:30:190
23730991916,2cyclictest26880-21ionclean21:08:580
23730991915,3cyclictest0-21swapper/022:45:210
2373099191,17cyclictest0-21swapper/023:07:070
2373099190,4cyclictest14792-21ls20:45:180
2373099190,3cyclictest3576-21grep22:20:150
2373099190,3cyclictest0-21swapper/020:36:180
2373099190,15cyclictest0-21swapper/023:29:180
2373099190,15cyclictest0-21swapper/000:13:390
23743991816,1cyclictest28-21ksoftirqd/220:35:162
23743991815,2cyclictest9432-21/usr/sbin/munin22:30:192
23743991815,2cyclictest9432-21/usr/sbin/munin22:30:192
23743991815,2cyclictest31214-21switchtime19:20:212
23743991815,2cyclictest22001-21cat21:55:192
23743991815,2cyclictest21887-21idleruntime23:50:162
23743991815,2cyclictest1081-21grep21:20:132
23743991814,3cyclictest399-20systemd-journal22:37:422
23743991814,3cyclictest3981-21H222:10:212
23743991814,3cyclictest0-21swapper/221:00:182
23743991814,3cyclictest0-21swapper/219:35:242
2374399181,2cyclictest4263-21if_err_lxdbr019:30:152
2374399180,17cyclictest0-21swapper/200:25:142
2374399180,16cyclictest3991-21H222:10:212
23738991817,1cyclictest12228-21kworker/1:100:11:541
23738991816,1cyclictest21-21ksoftirqd/123:34:091
23738991816,1cyclictest0-21swapper/100:25:121
23738991815,2cyclictest4579-21taskset20:25:241
23738991815,2cyclictest4579-21taskset20:25:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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