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2026-05-28 - 17:58
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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 May 28, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1376936991311,0cyclictest0-21swapper/312:35:013
137693699130,11cyclictest0-21swapper/310:55:113
1376936991211,0cyclictest0-21swapper/312:00:163
1376936991211,0cyclictest0-21swapper/308:35:133
137693699120,11cyclictest0-21swapper/309:35:103
137693699120,11cyclictest0-21swapper/309:00:003
137693699120,11cyclictest0-21swapper/308:30:013
137693699120,11cyclictest0-21swapper/307:20:183
137693699120,10cyclictest0-21swapper/311:40:123
1376936991111,0cyclictest0-21swapper/307:40:123
1376936991110,0cyclictest0-21swapper/310:50:173
137693699110,8cyclictest0-21swapper/310:35:113
137693699110,11cyclictest0-21swapper/312:05:123
137693699110,11cyclictest0-21swapper/311:25:183
137693699110,10cyclictest0-21swapper/310:40:103
137693699110,0cyclictest0-21swapper/311:20:123
137693699110,0cyclictest0-21swapper/308:10:103
137693699109,1cyclictest0-21swapper/307:25:113
137693699109,0cyclictest0-21swapper/309:45:123
137693699108,2cyclictest0-21swapper/310:27:243
1376936991010,0cyclictest0-21swapper/310:15:173
1376936991010,0cyclictest0-21swapper/309:30:113
1376936991010,0cyclictest0-21swapper/308:20:133
1376936991010,0cyclictest0-21swapper/308:09:573
1376936991010,0cyclictest0-21swapper/308:00:183
1376936991010,0cyclictest0-21swapper/307:30:113
137693699100,9cyclictest0-21swapper/311:45:163
137693699100,0cyclictest0-21swapper/312:10:103
13751402101,6sleep30-21swapper/307:05:103
13769369999,0cyclictest0-21swapper/311:50:123
13769369999,0cyclictest0-21swapper/311:10:183
13769369999,0cyclictest0-21swapper/308:40:173
13769369990,9cyclictest0-21swapper/310:34:563
13769369990,8cyclictest0-21swapper/309:50:183
13769369990,0cyclictest0-21swapper/307:15:173
13769369988,0cyclictest0-21swapper/309:05:193
13769369988,0cyclictest0-21swapper/308:15:163
13769369988,0cyclictest0-21swapper/307:55:173
13769369988,0cyclictest0-21swapper/307:45:163
13769369988,0cyclictest0-21swapper/307:35:153
13769369980,7cyclictest0-21swapper/311:02:283
13769369977,0cyclictest0-21swapper/312:17:323
13769369977,0cyclictest0-21swapper/311:35:173
13769369977,0cyclictest0-21swapper/310:05:173
13769369977,0cyclictest0-21swapper/309:55:363
13769369977,0cyclictest0-21swapper/308:50:133
13769369976,1cyclictest0-21swapper/309:00:123
13769369976,0cyclictest0-21swapper/310:04:413
13769369970,7cyclictest0-21swapper/307:10:183
13769369966,0cyclictest0-21swapper/311:15:133
13769369966,0cyclictest0-21swapper/311:05:163
13769369966,0cyclictest0-21swapper/309:10:113
13769369966,0cyclictest0-21swapper/308:45:143
13769369965,0cyclictest0-21swapper/312:20:123
13769369955,0cyclictest0-21swapper/312:37:353
13769369955,0cyclictest0-21swapper/312:29:223
13769369955,0cyclictest0-21swapper/311:30:163
13769369955,0cyclictest0-21swapper/309:20:173
13769369955,0cyclictest0-21swapper/308:30:173
13769369954,0cyclictest0-21swapper/309:40:143
13769369954,0cyclictest0-21swapper/309:15:173
13769369950,4cyclictest0-21swapper/311:55:023
1467957243,1sleep01451470-21kworker/0:0+events10:53:270
1408989240,2sleep21409015-21apt-get08:30:112
13769369944,0cyclictest0-21swapper/310:45:033
13769369944,0cyclictest0-21swapper/310:10:023
13769369944,0cyclictest0-21swapper/307:51:193
13769369943,0cyclictest0-21swapper/309:25:063
13769369940,2cyclictest0-21swapper/310:20:123
1376107241,2sleep20-21swapper/207:05:172
1499959230,1sleep01499987-21apt-get12:10:110
1488098230,2sleep11487192-21/usr/sbin/munin11:40:191
1472575230,1sleep01472601-21apt-get11:05:110
1453460230,1sleep01453462-21ssh10:19:310
1391484230,1sleep11391510-21apt-get07:45:121
1375936231,1sleep10-21swapper/107:05:161
1375231231,1sleep00-21swapper/007:05:120
1506852220,1sleep21507010-21ntp_states12:25:172
1505453220,1sleep21505454-21sshd12:20:222
1487961220,1sleep00-21swapper/011:40:170
1483068220,1sleep00-21swapper/011:30:130
1472558220,0sleep10-21swapper/111:05:031
1466306220,0sleep10-21swapper/110:50:111
1463943220,0sleep00-21swapper/010:44:450
1432172220,1sleep00-21swapper/009:30:010
1421472220,1sleep01421691-21unixbench_multi09:00:190
1421110220,1sleep11421260-21ntp_states09:00:171
1411025220,1sleep11411320-21df08:35:151
1407117220,0sleep00-21swapper/008:25:130
1400205220,1sleep21400376-21python308:05:182
1399410220,0sleep00-21swapper/008:05:110
1397933220,1sleep01398015-21irqstats08:00:150
1395319220,1sleep21395402-21latency_hist07:55:012
1390153220,1sleep21390321-21sed07:40:172
1387474220,1sleep00-21swapper/007:35:090
1377227220,1sleep11377522-21expr07:10:131
1510914210,0sleep00-21swapper/012:35:170
1510584210,0sleep20-21swapper/212:35:152
1510391210,0sleep10-21swapper/112:35:101
1509248210,0sleep10-21swapper/112:30:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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