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2026-04-30 - 03:30
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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 rack1slot3.osadl.org (updated Thu Apr 30, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2950931991312,0cyclictest0-21swapper/319:15:023
295093199130,11cyclictest0-21swapper/322:20:143
295093199120,1cyclictest0-21swapper/323:20:013
295093199120,11cyclictest0-21swapper/320:10:133
295093199120,11cyclictest0-21swapper/319:20:013
2950931991111,0cyclictest0-21swapper/319:15:013
2950931991110,0cyclictest0-21swapper/320:45:133
2950931991110,0cyclictest0-21swapper/320:40:123
295093199110,10cyclictest0-21swapper/323:50:173
295093199110,10cyclictest0-21swapper/323:25:013
295093199110,10cyclictest0-21swapper/319:50:163
295093199110,0cyclictest0-21swapper/322:10:113
295093199110,0cyclictest0-21swapper/319:25:123
295093199110,0cyclictest0-21swapper/300:15:023
2950931991010,0cyclictest0-21swapper/323:10:123
2950931991010,0cyclictest0-21swapper/323:05:013
2950931991010,0cyclictest0-21swapper/322:20:003
2950931991010,0cyclictest0-21swapper/321:50:133
2950931991010,0cyclictest0-21swapper/320:35:203
2950931991010,0cyclictest0-21swapper/319:55:023
295093199100,9cyclictest0-21swapper/320:15:153
295093199100,10cyclictest0-21swapper/323:45:023
295093199100,10cyclictest0-21swapper/321:30:013
295093199100,0cyclictest0-21swapper/321:40:173
295093199100,0cyclictest0-21swapper/320:55:183
29509319999,0cyclictest0-21swapper/322:55:003
29509319999,0cyclictest0-21swapper/322:30:163
29509319999,0cyclictest0-21swapper/321:05:133
29509319999,0cyclictest0-21swapper/321:00:183
29509319999,0cyclictest0-21swapper/319:34:073
29509319990,9cyclictest0-21swapper/319:45:013
29509319990,9cyclictest0-21swapper/300:20:183
29509319990,8cyclictest0-21swapper/323:30:173
29509319988,0cyclictest0-21swapper/323:57:283
29509319988,0cyclictest0-21swapper/322:05:003
29509319988,0cyclictest0-21swapper/321:45:173
29509319988,0cyclictest0-21swapper/321:35:123
29509319987,0cyclictest0-21swapper/321:33:303
29509319980,8cyclictest0-21swapper/300:10:113
29509319980,8cyclictest0-21swapper/300:10:113
29509319980,7cyclictest0-21swapper/323:10:003
29509319980,7cyclictest0-21swapper/321:10:183
29509319977,0cyclictest0-21swapper/323:50:013
29509319977,0cyclictest0-21swapper/320:20:173
29509319977,0cyclictest0-21swapper/319:35:173
29509319976,0cyclictest0-21swapper/323:30:023
2950769271,4sleep30-21swapper/319:09:453
29509319966,0cyclictest0-21swapper/322:06:443
29509319966,0cyclictest0-21swapper/321:20:113
29509319966,0cyclictest0-21swapper/321:15:113
29509319966,0cyclictest0-21swapper/320:00:153
29509319966,0cyclictest0-21swapper/300:30:123
29509319966,0cyclictest0-21swapper/300:06:033
29509319966,0cyclictest0-21swapper/300:00:113
29509319965,0cyclictest0-21swapper/323:00:003
29509319965,0cyclictest0-21swapper/322:37:003
29509319963,2cyclictest2992016-21taskset20:54:063
2957840250,2sleep12957866-21apt-get19:25:131
29509319955,0cyclictest0-21swapper/319:45:113
29509319955,0cyclictest0-21swapper/300:36:463
29509319955,0cyclictest0-21swapper/300:26:133
29509319954,0cyclictest0-21swapper/320:30:013
29509319950,0cyclictest0-21swapper/322:40:163
3002650240,3sleep13002676-21apt-get21:20:101
2997026240,1sleep10-21swapper/121:05:191
29509319944,0cyclictest0-21swapper/323:35:053
29509319943,1cyclictest0-21swapper/322:45:423
29509319942,2cyclictest3017035-21taskset21:55:193
29509319941,0cyclictest0-21swapper/320:30:023
29509319940,3cyclictest3025832-21taskset22:26:203
29509319940,3cyclictest2974536-21chrt20:06:083
2950699242,1sleep10-21swapper/119:08:511
3043915230,1sleep00-21swapper/023:30:030
3041633230,2sleep13041676-21basename23:20:141
3012861230,1sleep13012887-21apt-get21:45:131
2990428230,1sleep02990454-21apt-get20:50:130
2965931230,0sleep2441rcuc/219:45:142
2961665230,2sleep02961693-21apt-get19:35:110
2949285231,1sleep00-21swapper/019:05:140
2949130230,1sleep22949156-21apt-get19:05:112
3063430220,0sleep00-21swapper/000:34:190
3060632220,0sleep00-21swapper/000:25:010
3058867220,0sleep00-21swapper/000:20:140
3058530220,1sleep02049791-21systemd-journal00:20:020
3054978220,0sleep00-21swapper/000:06:240
3054595220,1sleep13054705-21sed00:05:011
3052758220,1sleep20-21swapper/200:00:102
3048806220,1sleep23048813-21latency_hist23:45:022
3044991220,1sleep13045202-21ls23:30:201
3043812220,1sleep20-21swapper/223:29:572
3039849220,0sleep00-21swapper/023:14:490
3035354220,1sleep20-21swapper/223:00:152
3035210220,1sleep10-21swapper/123:00:141
3033662220,0sleep00-21swapper/022:51:080
3024241220,1sleep03024391-21ntp_states22:20:170
3019668220,0sleep00-21swapper/022:05:000
3018311220,1sleep03018464-21memory22:00:170
3013484220,1sleep23013640-21ntp_states21:45:172
3008695220,1sleep13008721-21apt-get21:35:111
3003271220,1sleep23003425-21ntp_states21:20:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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