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2026-05-20 - 17:22
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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 Wed May 20, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2572236991411,1cyclictest0-21swapper/307:25:123
257223699140,12cyclictest0-21swapper/312:05:123
2572236991310,1cyclictest0-21swapper/312:30:113
257223699130,12cyclictest0-21swapper/309:50:123
257223699130,11cyclictest0-21swapper/311:10:143
257223699130,11cyclictest0-21swapper/308:40:123
257223699130,10cyclictest0-21swapper/309:15:013
2572236991210,1cyclictest0-21swapper/308:35:093
257223699120,11cyclictest0-21swapper/310:15:013
257223699120,11cyclictest0-21swapper/308:10:203
257223699120,11cyclictest0-21swapper/308:05:113
257223699120,11cyclictest0-21swapper/308:00:113
257223699120,11cyclictest0-21swapper/307:30:123
2572236991110,0cyclictest0-21swapper/311:45:013
2572236991110,0cyclictest0-21swapper/308:30:003
257223699110,11cyclictest0-21swapper/311:55:173
257223699110,10cyclictest0-21swapper/310:35:103
257223699110,10cyclictest0-21swapper/310:00:173
257223699110,10cyclictest0-21swapper/309:25:003
257223699110,0cyclictest0-21swapper/310:50:013
257223699110,0cyclictest0-21swapper/308:55:133
257223699109,0cyclictest0-21swapper/311:35:133
257223699109,0cyclictest0-21swapper/310:40:133
257223699109,0cyclictest0-21swapper/310:30:303
257223699109,0cyclictest0-21swapper/309:55:153
257223699109,0cyclictest0-21swapper/309:45:113
2572236991010,0cyclictest0-21swapper/311:05:133
2572236991010,0cyclictest0-21swapper/308:20:163
2572236991010,0cyclictest0-21swapper/307:40:013
257223699100,0cyclictest0-21swapper/309:05:173
25722369999,0cyclictest0-21swapper/312:26:123
25722369999,0cyclictest0-21swapper/312:10:203
25722369999,0cyclictest0-21swapper/312:04:103
25722369999,0cyclictest0-21swapper/310:20:183
25722369998,0cyclictest0-21swapper/311:50:113
25722369998,0cyclictest0-21swapper/310:25:123
25722369988,0cyclictest0-21swapper/312:35:143
25722369988,0cyclictest0-21swapper/309:45:013
25722369987,0cyclictest0-21swapper/307:10:133
25722369983,4cyclictest0-21swapper/308:15:133
25722369980,7cyclictest0-21swapper/309:34:553
25722369980,0cyclictest0-21swapper/311:00:223
2570866281,4sleep30-21swapper/307:05:153
25722369977,0cyclictest0-21swapper/312:20:183
25722369977,0cyclictest0-21swapper/312:16:323
25722369977,0cyclictest0-21swapper/311:45:183
25722369977,0cyclictest0-21swapper/311:33:373
25722369977,0cyclictest0-21swapper/311:18:373
25722369977,0cyclictest0-21swapper/311:18:373
25722369977,0cyclictest0-21swapper/309:35:183
25722369977,0cyclictest0-21swapper/309:10:113
25722369977,0cyclictest0-21swapper/307:50:123
25722369977,0cyclictest0-21swapper/307:15:123
25722369966,0cyclictest0-21swapper/311:25:193
25722369966,0cyclictest0-21swapper/311:20:193
25722369966,0cyclictest0-21swapper/309:00:573
25722369966,0cyclictest0-21swapper/308:30:183
25722369966,0cyclictest0-21swapper/307:40:163
25722369965,0cyclictest0-21swapper/310:51:403
25722369964,1cyclictest0-21swapper/310:15:123
2668181250,3sleep02668428-21diskstats11:05:150
25722369955,0cyclictest0-21swapper/310:59:033
25722369954,0cyclictest0-21swapper/310:05:273
25722369954,0cyclictest0-21swapper/308:50:153
25722369950,4cyclictest0-21swapper/309:25:103
2570436252,1sleep00-21swapper/007:05:120
2689114243,0sleep20-21swapper/211:55:122
25722369944,0cyclictest0-21swapper/308:46:433
25722369944,0cyclictest0-21swapper/307:56:033
25722369944,0cyclictest0-21swapper/307:46:273
25722369944,0cyclictest0-21swapper/307:20:423
2571780242,1sleep10-21swapper/107:05:571
2570620241,1sleep20-21swapper/207:05:142
2673556230,0sleep00-21swapper/011:16:120
2673556230,0sleep00-21swapper/011:16:120
2602220230,2sleep22602036-21/usr/sbin/munin08:25:152
2596016230,1sleep02596042-21apt-get08:10:120
2707495220,1sleep00-21swapper/012:38:450
2689275220,1sleep00-21swapper/011:55:140
2684690220,1sleep12684715-21apt11:45:101
2676091220,1sleep11-21systemd11:25:021
2669407220,1sleep22669411-21ssh11:06:212
2659651220,1sleep00-21swapper/010:45:150
2651202220,1sleep12651471-21diskstats10:25:131
2647469220,1sleep02647621-21ntp_states10:15:160
2640334220,1sleep20-21swapper/210:00:012
2636158220,1sleep10-21swapper/109:50:111
2634882220,1sleep02635053-21python309:45:180
2627701220,1sleep02627884-21cat09:30:130
2627196220,0sleep00-21swapper/009:28:260
2624401220,1sleep02624574-21smartctl09:20:160
2596200220,1sleep22596447-21diskstats08:10:142
2586901220,1sleep12587053-21memory07:45:151
2582437220,0sleep10-21swapper/107:35:111
2581024220,1sleep22581190-21sed07:30:162
2576292220,2sleep1773-21sshd07:18:101
2707152210,0sleep10-21swapper/112:35:421
2706101210,0sleep20-21swapper/212:35:152
2705113210,0sleep02705115-21ssh12:31:040
2704700210,0sleep20-21swapper/212:30:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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