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2026-05-13 - 19:52
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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 13, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
353009399160,13cyclictest0-21swapper/308:05:113
3530093991311,1cyclictest0-21swapper/307:40:123
353009399130,1cyclictest0-21swapper/308:30:123
353009399130,11cyclictest0-21swapper/311:55:123
353009399130,11cyclictest0-21swapper/311:15:123
3530093991211,0cyclictest0-21swapper/312:20:123
3530093991211,0cyclictest0-21swapper/310:35:163
3530093991211,0cyclictest0-21swapper/308:15:123
3530093991210,1cyclictest0-21swapper/310:55:123
353009399120,1cyclictest0-21swapper/310:40:103
353009399120,11cyclictest0-21swapper/309:20:013
3530093991110,0cyclictest0-21swapper/309:05:133
3530093991110,0cyclictest0-21swapper/307:25:123
353009399110,8cyclictest0-21swapper/310:00:013
353009399110,11cyclictest0-21swapper/311:15:023
353009399110,10cyclictest0-21swapper/310:45:193
353009399110,10cyclictest0-21swapper/308:35:163
353009399110,0cyclictest0-21swapper/308:20:133
353009399110,0cyclictest0-21swapper/307:34:593
353009399109,0cyclictest0-21swapper/311:40:123
353009399109,0cyclictest0-21swapper/309:40:123
353009399108,1cyclictest3645705-21chrt11:50:133
3530093991010,0cyclictest0-21swapper/312:10:123
3530093991010,0cyclictest0-21swapper/311:45:113
3530093991010,0cyclictest0-21swapper/311:25:023
3530093991010,0cyclictest0-21swapper/311:00:133
3530093991010,0cyclictest0-21swapper/308:00:183
353009399100,9cyclictest0-21swapper/312:30:163
353009399100,9cyclictest0-21swapper/312:05:213
353009399100,9cyclictest0-21swapper/307:55:433
353009399100,0cyclictest0-21swapper/309:20:013
353009399100,0cyclictest0-21swapper/309:00:013
353009399100,0cyclictest0-21swapper/307:39:543
35300939999,0cyclictest0-21swapper/312:20:013
35300939999,0cyclictest0-21swapper/311:30:133
35300939999,0cyclictest0-21swapper/308:40:113
35300939999,0cyclictest0-21swapper/307:20:193
35300939999,0cyclictest0-21swapper/307:10:133
35300939998,0cyclictest0-21swapper/310:00:123
35300939998,0cyclictest0-21swapper/309:25:113
35300939998,0cyclictest0-21swapper/309:05:013
35300939990,8cyclictest0-21swapper/310:50:443
35300939990,0cyclictest0-21swapper/310:10:113
35300939988,0cyclictest0-21swapper/311:35:473
35300939988,0cyclictest0-21swapper/309:45:113
35300939988,0cyclictest0-21swapper/309:35:203
35300939988,0cyclictest0-21swapper/308:50:143
35300939988,0cyclictest0-21swapper/307:45:093
35300939987,1cyclictest0-21swapper/312:25:113
35300939987,0cyclictest0-21swapper/311:20:143
35300939980,7cyclictest0-21swapper/309:55:013
35300939980,0cyclictest0-21swapper/309:15:013
35300939977,0cyclictest0-21swapper/312:00:163
35300939977,0cyclictest0-21swapper/310:25:163
35300939977,0cyclictest0-21swapper/310:15:183
35300939977,0cyclictest0-21swapper/307:15:163
35300939974,1cyclictest0-21swapper/308:45:123
35300939970,6cyclictest0-21swapper/310:20:163
35300939970,6cyclictest0-21swapper/308:25:173
3529680271,4sleep30-21swapper/307:06:433
35300939966,0cyclictest0-21swapper/311:05:163
35300939966,0cyclictest0-21swapper/310:30:183
35300939966,0cyclictest0-21swapper/310:05:173
35300939966,0cyclictest0-21swapper/309:30:163
3628893240,2sleep23629085-21grep11:10:182
35300939944,0cyclictest0-21swapper/312:35:173
35300939944,0cyclictest0-21swapper/308:10:003
35300939940,3cyclictest3547734-21chrt07:50:503
3529855242,1sleep10-21swapper/107:08:571
3528277241,1sleep00-21swapper/007:05:130
3528269242,1sleep20-21swapper/207:05:062
3649523230,2sleep03649597-21cut12:00:110
3634398230,1sleep13634415-21apt-get11:25:021
3623942230,2sleep23624077-21sed11:00:022
3617954230,1sleep23617980-21apt-get10:45:132
3576189230,1sleep10-21swapper/109:05:091
3548396230,2sleep13548581-21grep07:55:131
3547328230,2sleep03547559-21cat07:50:200
3544717230,2sleep10-21swapper/107:45:131
3539271230,2sleep13539466-21sed07:30:201
3664641220,1sleep23664846-21ntpq12:35:162
3663004220,1sleep13663223-21grep12:30:181
3659704220,1sleep0607-21dbus-daemon12:25:010
3657284220,1sleep00-21swapper/012:17:110
3655950220,1sleep10-21swapper/112:15:121
3640275220,0sleep00-21swapper/011:35:210
3635345220,1sleep23635429-21irqstats11:25:152
3634247220,0sleep00-21swapper/011:23:410
3624655220,1sleep03624737-21irqstats11:00:160
3620029221,0sleep2451ktimers/210:50:092
3615543220,1sleep13615569-21apt-get10:40:101
3610073220,1sleep03610244-21python310:25:170
3609025220,1sleep03609170-21latency_hist10:25:010
3603039220,0sleep00-21swapper/010:10:120
3599958220,1sleep00-21swapper/010:00:200
3595194220,1sleep03595401-21ntpq09:50:150
3592583220,0sleep10-21swapper/109:45:121
3583570220,1sleep00-21swapper/009:20:210
3570180220,0sleep10-21swapper/108:50:121
3563901220,1sleep03563961-21/usr/sbin/munin08:35:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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