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2026-04-12 - 04:54
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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 Sun Apr 12, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73492197182,11sleep10-21swapper/119:08:511
71482193175,13sleep30-21swapper/319:06:173
72492186168,13sleep00-21swapper/019:07:340
70932170150,15sleep20-21swapper/219:05:352
29602500,0sleep10-21swapper/121:56:301
141732490,0sleep30-21swapper/322:18:093
145732470,0sleep014576-21sh00:25:170
53502450,0sleep30-21swapper/323:49:133
80842440,0sleep20-21swapper/200:05:502
105402440,0sleep10-21swapper/100:07:201
220212420,0sleep20-21swapper/219:35:142
60742100,0sleep20-21swapper/223:49:402
19872100,1sleep21989-21needreboot21:05:182
23055290,0sleep20-21swapper/222:22:122
76209960,5cyclictest0-21swapper/323:35:113
76149965,1cyclictest14042-21ssh23:37:062
76129963,3cyclictest22284-21kworker/0:319:10:010
76129962,4cyclictest15126-21kworker/0:223:35:450
76129962,4cyclictest15126-21kworker/0:223:31:410
76129962,4cyclictest15126-21kworker/0:223:22:100
76129962,4cyclictest15126-21kworker/0:223:18:250
76129962,4cyclictest15126-21kworker/0:223:00:090
76129962,4cyclictest15126-21kworker/0:222:17:130
76129962,4cyclictest15126-21kworker/0:200:34:360
76129962,4cyclictest15126-21kworker/0:200:22:300
76129962,4cyclictest15126-21kworker/0:200:19:570
76129961,5cyclictest460-21kworker/0:021:35:140
76129961,5cyclictest460-21kworker/0:021:25:170
76129961,5cyclictest460-21kworker/0:021:19:570
76129961,5cyclictest15126-21kworker/0:223:46:210
76129961,5cyclictest15126-21kworker/0:222:25:450
76129961,5cyclictest15126-21kworker/0:222:20:130
76129960,5cyclictest13335-21latency_hist21:15:010
76209952,2cyclictest57150irq/125-eth023:50:123
76209950,5cyclictest0-21swapper/320:20:173
76209950,1cyclictest24592-21/usr/sbin/munin22:55:143
76149955,0cyclictest0-21swapper/221:59:362
76149951,2cyclictest0-21swapper/221:15:132
76149950,5cyclictest0-21swapper/223:18:192
76149950,5cyclictest0-21swapper/223:02:532
76149950,4cyclictest0-21swapper/220:30:132
76149950,0cyclictest0-21swapper/200:18:592
76139955,0cyclictest0-21swapper/100:35:221
76139951,2cyclictest0-21swapper/123:00:121
76139951,2cyclictest0-21swapper/120:15:121
76139951,2cyclictest0-21swapper/120:00:111
76139950,5cyclictest0-21swapper/123:58:421
76139950,5cyclictest0-21swapper/122:19:551
76139950,5cyclictest0-21swapper/121:25:211
76129951,4cyclictest460-21kworker/0:021:40:290
76129951,4cyclictest460-21kworker/0:021:30:050
76129951,4cyclictest15126-21kworker/0:223:58:300
76129951,4cyclictest15126-21kworker/0:223:50:340
76129951,4cyclictest15126-21kworker/0:223:41:370
76129951,4cyclictest15126-21kworker/0:223:28:500
76129951,4cyclictest15126-21kworker/0:223:14:050
76129951,4cyclictest15126-21kworker/0:223:05:010
76129951,4cyclictest15126-21kworker/0:222:55:580
76129951,4cyclictest15126-21kworker/0:222:51:570
76129951,4cyclictest15126-21kworker/0:222:46:130
76129951,4cyclictest15126-21kworker/0:222:43:170
76129951,4cyclictest15126-21kworker/0:222:36:290
76129951,4cyclictest15126-21kworker/0:222:31:140
76129951,4cyclictest15126-21kworker/0:222:05:140
76129951,4cyclictest15126-21kworker/0:221:56:570
76129951,4cyclictest15126-21kworker/0:221:50:170
76129951,4cyclictest15126-21kworker/0:221:47:210
76129951,4cyclictest15126-21kworker/0:200:35:040
76129951,4cyclictest15126-21kworker/0:200:10:370
76129951,4cyclictest15126-21kworker/0:200:05:130
76129951,4cyclictest15126-21kworker/0:200:02:010
76129950,5cyclictest15126-21kworker/0:222:10:170
76129950,4cyclictest9264-21ssh22:00:110
76129950,4cyclictest10945-21apt-get20:20:090
31073250,0sleep10-21swapper/123:30:011
76209944,0cyclictest0-21swapper/321:25:383
76209944,0cyclictest0-21swapper/300:39:263
76209943,1cyclictest859-21sh21:40:133
76209943,1cyclictest7031-21awk22:15:013
76209943,1cyclictest28357-21gltestperf00:00:153
76209943,1cyclictest2818-21tail20:00:193
76209943,1cyclictest22385-21ntp_states23:25:183
76209941,3cyclictest802-21snmpd21:11:503
76209941,1cyclictest0-21swapper/319:35:103
76209940,4cyclictest2395-21apt-get23:00:133
76209940,4cyclictest21384-21ssh00:12:473
76209940,4cyclictest0-21swapper/322:25:173
76209940,4cyclictest0-21swapper/321:45:523
76209940,4cyclictest0-21swapper/321:31:023
76209940,4cyclictest0-21swapper/321:20:123
76209940,4cyclictest0-21swapper/319:54:593
76209940,3cyclictest9680-21sh23:19:403
76209940,3cyclictest7734-21ssh21:59:243
76209940,3cyclictest334-21ntp_states23:30:183
76209940,3cyclictest32607-21ls23:15:013
76209940,3cyclictest26366-21ssh22:40:113
76209940,3cyclictest24238-21/usr/sbin/munin21:35:183
76209940,3cyclictest17605-21apt-config22:20:013
76209940,3cyclictest10788-21/usr/sbin/munin22:00:183
76209940,2cyclictest24362-21/usr/sbin/munin00:30:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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