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2026-04-29 - 07:57
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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 Apr 29, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304582499140,12cyclictest0-21swapper/322:55:123
3045824991311,1cyclictest0-21swapper/320:10:123
304582499130,12cyclictest0-21swapper/322:00:183
304582499130,11cyclictest0-21swapper/322:30:133
304582499120,11cyclictest0-21swapper/321:40:193
304582499120,11cyclictest0-21swapper/321:10:183
3045824991111,0cyclictest0-21swapper/321:25:193
304582499110,10cyclictest0-21swapper/322:35:183
304582499110,10cyclictest0-21swapper/319:55:173
304582499110,10cyclictest0-21swapper/300:05:173
304582499110,10cyclictest0-21swapper/300:00:133
304582499110,0cyclictest0-21swapper/323:30:023
304582499110,0cyclictest0-21swapper/323:10:143
304582499110,0cyclictest0-21swapper/322:20:123
304582499110,0cyclictest0-21swapper/321:30:173
304582499110,0cyclictest0-21swapper/320:50:183
304582499110,0cyclictest0-21swapper/319:40:193
304582499110,0cyclictest0-21swapper/319:20:123
304582499110,0cyclictest0-21swapper/300:35:183
304582499110,0cyclictest0-21swapper/300:25:133
304582499109,0cyclictest0-21swapper/321:50:133
304582499109,0cyclictest0-21swapper/320:15:153
3045824991010,0cyclictest0-21swapper/322:52:593
3045824991010,0cyclictest0-21swapper/322:10:193
3045824991010,0cyclictest0-21swapper/320:35:113
3045824991010,0cyclictest0-21swapper/320:05:153
304582499100,9cyclictest0-21swapper/320:05:013
304582499100,9cyclictest0-21swapper/319:15:463
304582499100,8cyclictest0-21swapper/320:45:123
304582499100,0cyclictest0-21swapper/323:30:123
304582499100,0cyclictest0-21swapper/323:00:123
304582499100,0cyclictest0-21swapper/320:25:153
304582499100,0cyclictest0-21swapper/319:35:003
30458249999,0cyclictest0-21swapper/323:59:593
30458249999,0cyclictest0-21swapper/323:15:183
30458249999,0cyclictest0-21swapper/322:20:013
30458249999,0cyclictest0-21swapper/322:00:013
30458249999,0cyclictest0-21swapper/321:45:533
30458249999,0cyclictest0-21swapper/321:15:193
30458249999,0cyclictest0-21swapper/300:20:193
30458249999,0cyclictest0-21swapper/300:10:163
30458249998,0cyclictest0-21swapper/321:40:013
30458249998,0cyclictest0-21swapper/319:45:103
30458249990,8cyclictest0-21swapper/320:25:003
3107596280,5sleep23107622-21apt-get21:45:112
30458249988,0cyclictest0-21swapper/323:43:553
30458249988,0cyclictest0-21swapper/323:20:113
30458249988,0cyclictest0-21swapper/319:50:143
30458249988,0cyclictest0-21swapper/319:25:193
30458249980,7cyclictest0-21swapper/321:20:023
30458249980,0cyclictest0-21swapper/300:35:013
30458249977,0cyclictest0-21swapper/323:45:123
30458249977,0cyclictest0-21swapper/300:15:133
30458249976,0cyclictest0-21swapper/323:50:123
3044812271,4sleep30-21swapper/319:05:183
30458249966,0cyclictest0-21swapper/322:05:133
30458249966,0cyclictest0-21swapper/320:40:253
30458249966,0cyclictest0-21swapper/320:30:183
30458249966,0cyclictest0-21swapper/319:35:133
30458249965,0cyclictest0-21swapper/319:10:143
30458249960,6cyclictest0-21swapper/321:02:553
30458249954,0cyclictest0-21swapper/322:46:113
30458249954,0cyclictest0-21swapper/322:27:523
30458249954,0cyclictest0-21swapper/321:05:143
3045575250,1sleep10-21swapper/119:08:401
3093934240,3sleep13094105-21python321:10:201
30458249943,0cyclictest0-21swapper/322:40:093
30458249943,0cyclictest0-21swapper/322:40:093
30458249940,3cyclictest3154849-21chrt23:35:183
30458249940,3cyclictest3141542-21taskset23:05:123
30458249940,3cyclictest3088951-21chrt20:58:523
3044730241,1sleep20-21swapper/219:05:172
3167196230,1sleep03167345-21ntp_states00:05:180
3148420230,2sleep03148562-21ntpq23:20:150
3109678230,1sleep03109708-21apt-get21:50:140
3057064230,2sleep03057315-21who19:35:210
3044452231,1sleep00-21swapper/019:05:150
3179639220,1sleep10-21swapper/100:35:181
3178552220,0sleep00-21swapper/000:32:310
3172570220,1sleep23172585-21/usr/sbin/munin00:20:012
3165694220,0sleep00-21swapper/000:00:210
3158401220,1sleep23158647-21diskstats23:45:142
3157465220,0sleep20-21swapper/223:40:392
3134634220,1sleep00-21swapper/022:49:090
3117867220,0sleep00-21swapper/022:08:300
3107082220,1sleep03107378-21latency_hist21:45:010
3097175220,1sleep13097200-21apt21:20:121
3085619220,1sleep03085887-21df20:50:130
3079090220,0sleep00-21swapper/020:30:210
3075979220,1sleep23076201-21tr20:25:142
3071795220,1sleep13071863-21cat20:15:001
3067620220,0sleep00-21swapper/020:00:540
3054287220,1sleep13054541-21diskstats19:30:141
3048589220,1sleep20-21swapper/219:15:142
3180497210,0sleep00-21swapper/000:36:210
3178406210,0sleep20-21swapper/200:31:132
3177865210,0sleep10-21swapper/100:30:201
3175358210,0sleep10-21swapper/100:25:161
3175111210,0sleep00-21swapper/000:25:150
3174925210,0sleep20-21swapper/200:25:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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