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2026-04-23 - 06:46
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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 23, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3851193991413,0cyclictest0-21swapper/300:10:193
3851193991313,0cyclictest0-21swapper/319:25:193
3851193991312,0cyclictest0-21swapper/323:40:023
3851193991312,0cyclictest0-21swapper/320:40:013
385119399131,11cyclictest0-21swapper/323:05:123
385119399130,12cyclictest0-21swapper/319:40:123
385119399130,11cyclictest0-21swapper/320:15:113
385119399128,1cyclictest0-21swapper/320:55:133
3851193991212,0cyclictest0-21swapper/321:00:133
3851193991212,0cyclictest0-21swapper/300:35:013
3851193991211,0cyclictest0-21swapper/323:25:123
385119399121,10cyclictest0-21swapper/322:40:183
3851193991211,0cyclictest0-21swapper/321:58:393
385119399120,11cyclictest0-21swapper/321:54:563
385119399120,11cyclictest0-21swapper/320:20:123
385119399120,11cyclictest0-21swapper/320:00:013
385119399120,11cyclictest0-21swapper/319:45:163
385119399111,9cyclictest0-21swapper/321:25:173
3851193991111,0cyclictest0-21swapper/320:00:133
3851193991110,1cyclictest3898840-21chrt21:10:183
3851193991110,0cyclictest0-21swapper/322:15:123
385119399110,9cyclictest0-21swapper/320:50:113
385119399110,10cyclictest0-21swapper/323:55:023
385119399110,10cyclictest0-21swapper/322:20:013
385119399110,10cyclictest0-21swapper/319:15:203
385119399110,0cyclictest0-21swapper/321:40:123
385119399110,0cyclictest0-21swapper/300:00:203
385119399109,0cyclictest0-21swapper/323:15:023
385119399109,0cyclictest0-21swapper/323:00:133
385119399109,0cyclictest0-21swapper/322:50:123
385119399109,0cyclictest0-21swapper/321:05:123
385119399108,1cyclictest0-21swapper/323:45:123
3851193991010,0cyclictest0-21swapper/322:49:563
3851193991010,0cyclictest0-21swapper/322:10:123
3851193991010,0cyclictest0-21swapper/322:00:123
3851193991010,0cyclictest0-21swapper/319:35:013
3851193991010,0cyclictest0-21swapper/300:15:123
385119399100,9cyclictest0-21swapper/322:55:133
385119399100,10cyclictest0-21swapper/300:05:173
385119399100,0cyclictest0-21swapper/322:40:013
385119399100,0cyclictest0-21swapper/321:20:143
385119399100,0cyclictest0-21swapper/300:35:173
38511939999,0cyclictest0-21swapper/320:40:123
38511939999,0cyclictest0-21swapper/320:10:133
38511939999,0cyclictest0-21swapper/319:35:113
38511939998,0cyclictest0-21swapper/322:25:183
38511939998,0cyclictest0-21swapper/321:45:113
38511939990,1cyclictest0-21swapper/319:25:013
38511939990,0cyclictest0-21swapper/322:05:173
38511939988,0cyclictest0-21swapper/323:15:173
38511939988,0cyclictest0-21swapper/319:50:133
38511939988,0cyclictest0-21swapper/300:25:183
38511939977,0cyclictest0-21swapper/323:42:043
38511939977,0cyclictest0-21swapper/319:10:113
38511939970,7cyclictest0-21swapper/320:30:193
3850415271,4sleep30-21swapper/319:05:183
38511939966,0cyclictest0-21swapper/322:30:203
38511939966,0cyclictest0-21swapper/321:37:153
38511939966,0cyclictest0-21swapper/321:15:053
38511939965,0cyclictest0-21swapper/323:55:143
38511939965,0cyclictest0-21swapper/323:20:163
38511939964,1cyclictest0-21swapper/323:30:133
38511939960,5cyclictest3889866-21chrt20:46:193
38511939950,4cyclictest3880811-21chrt20:25:023
38511939950,4cyclictest26450irq/132-ahci[0000:00:17.0]20:05:173
3850997250,1sleep10-21swapper/119:09:281
3850689250,1sleep20-21swapper/219:05:292
3953977240,2sleep03954152-21/usr/sbin/munin23:20:190
3924398240,3sleep13924627-21/usr/sbin/munin22:10:191
3872918240,0sleep2441rcuc/220:05:142
38511939943,0cyclictest0-21swapper/300:20:053
38511939940,3cyclictest3906214-21chrt21:30:023
3849405240,3sleep016-21ksoftirqd/019:05:110
3982398230,1sleep13982424-21apt-get00:30:121
3976127230,1sleep13976153-21apt-get00:15:111
3916900230,1sleep23916926-21apt-get21:55:112
3875105230,2sleep23875241-21aten_r1power_vo20:10:132
3851338230,1sleep23851364-21apt-get19:10:092
3976156220,1sleep20-21swapper/200:15:122
3974842220,1sleep13975014-21sensors_temp00:10:191
3958778220,1sleep00-21swapper/023:31:310
3936050220,0sleep00-21swapper/022:38:360
3933869220,1sleep10-21swapper/122:35:011
3927338220,1sleep23927353-21apt-get22:20:012
3925252220,1sleep20-21swapper/222:15:012
3921961220,1sleep23922111-21ntp_states22:05:172
3917687220,1sleep03917800-21/usr/sbin/munin21:55:170
3905442220,1sleep00-21swapper/021:25:190
3900287220,1sleep03900534-21diskstats21:15:150
3898439220,1sleep03898526-21grep21:10:150
3895582220,0sleep00-21swapper/021:00:510
3893231220,1sleep23893356-21grep20:55:202
3893164220,1sleep13893228-21mailstats20:55:191
3885932220,0sleep00-21swapper/020:35:200
3856543220,1sleep13856691-21find19:20:171
3985222210,0sleep20-21swapper/200:35:172
3984921210,0sleep00-21swapper/000:35:150
3983081210,0sleep20-21swapper/200:30:182
3982388210,0sleep00-21swapper/000:30:070
3981221210,0sleep00-21swapper/000:25:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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