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2026-07-18 - 12:05
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot2.osadl.org (updated Sat Jul 18, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299472204171,12sleep00-21swapper/019:09:390
299782203188,11sleep10-21swapper/119:10:001
297082190173,12sleep30-21swapper/319:06:333
277492163146,13sleep20-21swapper/219:05:032
236942430,0sleep00-21swapper/023:49:060
318412390,0sleep10-21swapper/123:52:551
147252380,0sleep10-21swapper/120:45:141
301839980,4cyclictest1463-21munin-run22:50:000
301839971,3cyclictest30322-21idleruntime-cro22:00:010
301839970,6cyclictest0-21swapper/023:55:100
301839970,3cyclictest8495-21perf19:30:000
301939960,5cyclictest0-21swapper/323:20:113
301889960,6cyclictest0-21swapper/223:45:202
301889960,6cyclictest0-21swapper/222:03:322
301839960,3cyclictest26071-21munin-run22:30:010
23101260,0sleep023103-21unixbench_multi00:20:200
301939955,0cyclictest21195-21kworker/3:021:13:173
301939955,0cyclictest0-21swapper/321:34:473
301939954,1cyclictest21195-21kworker/3:000:23:353
301939954,1cyclictest0-21swapper/323:53:533
301939950,5cyclictest0-21swapper/322:44:203
301939950,5cyclictest0-21swapper/322:05:103
301889950,5cyclictest0-21swapper/200:30:292
301869951,3cyclictest0-21swapper/122:35:101
301869951,3cyclictest0-21swapper/121:50:131
301869951,3cyclictest0-21swapper/100:20:121
301869951,3cyclictest0-21swapper/100:15:121
301869951,2cyclictest0-21swapper/121:05:131
301869951,2cyclictest0-21swapper/120:20:111
301869951,2cyclictest0-21swapper/119:55:141
301869951,2cyclictest0-21swapper/119:40:111
301869951,2cyclictest0-21swapper/119:30:111
301869950,5cyclictest0-21swapper/123:46:321
301839955,0cyclictest0-21swapper/023:31:410
301839950,5cyclictest0-21swapper/000:34:500
301839950,4cyclictest0-21swapper/020:20:010
301839950,1cyclictest9455-21munin-run23:10:000
301839950,0cyclictest0-21swapper/023:15:060
14954250,1sleep00-21swapper/022:24:240
301939944,0cyclictest21195-21kworker/3:023:16:253
301939944,0cyclictest21195-21kworker/3:021:58:043
301939944,0cyclictest21195-21kworker/3:020:39:403
301939944,0cyclictest21195-21kworker/3:019:32:313
301939944,0cyclictest21195-21kworker/3:019:10:073
301939944,0cyclictest0-21swapper/323:41:573
301939944,0cyclictest0-21swapper/322:00:333
301939944,0cyclictest0-21swapper/321:42:043
301939940,4cyclictest5434-21rm23:07:303
301939940,4cyclictest25970-21memory21:25:183
301939940,4cyclictest16490-21ssh00:00:583
301939940,4cyclictest12350-21python21:50:213
301939940,4cyclictest0-21swapper/323:57:293
301939940,4cyclictest0-21swapper/323:35:123
301939940,4cyclictest0-21swapper/323:30:113
301939940,4cyclictest0-21swapper/323:25:123
301939940,4cyclictest0-21swapper/323:10:123
301939940,4cyclictest0-21swapper/323:01:573
301939940,4cyclictest0-21swapper/322:58:373
301939940,4cyclictest0-21swapper/322:46:103
301939940,4cyclictest0-21swapper/322:38:513
301939940,4cyclictest0-21swapper/322:25:283
301939940,4cyclictest0-21swapper/322:10:133
301939940,4cyclictest0-21swapper/321:35:223
301939940,4cyclictest0-21swapper/320:45:123
301939940,4cyclictest0-21swapper/320:05:123
301939940,4cyclictest0-21swapper/319:40:103
301939940,4cyclictest0-21swapper/300:36:313
301939940,4cyclictest0-21swapper/300:25:363
301939940,4cyclictest0-21swapper/300:05:123
301939940,3cyclictest950-21ssh00:10:113
301939940,3cyclictest6236-21apt-get19:25:103
301939940,3cyclictest5509-21if_eth421:15:173
301939940,3cyclictest3769-21apt-get19:20:103
301939940,3cyclictest3166-21memory22:50:163
301939940,3cyclictest28693-21ssh22:15:113
301939940,3cyclictest26520-21taskset22:30:103
301939940,3cyclictest26009-21latency_hist20:05:003
301939940,3cyclictest21434-21apt-config21:00:003
301939940,3cyclictest16862-21df20:50:133
301939940,3cyclictest10509-21sh22:21:373
301939940,1cyclictest1331-21hddtemp_smartct21:45:153
301939940,1cyclictest10196-21ntp_states00:30:173
301889944,0cyclictest0-21swapper/223:05:312
301889944,0cyclictest0-21swapper/200:00:132
301889943,1cyclictest0-21swapper/221:39:402
301889942,2cyclictest8398-21kworker/2:022:19:172
301889942,2cyclictest8398-21kworker/2:021:51:382
301889942,2cyclictest8398-21kworker/2:021:32:332
301889942,1cyclictest680-21ssh23:37:132
301889941,2cyclictest0-21swapper/222:25:122
301889941,1cyclictest802-21snmpd22:22:522
301889940,4cyclictest2726-21ntp_states20:20:172
301889940,4cyclictest24775-21apt-get21:25:142
301889940,4cyclictest19825-21ssh22:58:552
301889940,4cyclictest11399-21/usr/sbin/munin20:40:212
301889940,4cyclictest0-21swapper/223:55:292
301889940,4cyclictest0-21swapper/223:10:122
301889940,4cyclictest0-21swapper/223:04:192
301889940,4cyclictest0-21swapper/222:52:552
301889940,4cyclictest0-21swapper/222:46:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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