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2026-05-05 - 17:59
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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 Tue May 05, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32197599130,11cyclictest0-21swapper/312:30:123
32197599130,11cyclictest0-21swapper/310:25:123
321975991212,0cyclictest0-21swapper/308:19:223
321975991211,0cyclictest0-21swapper/309:05:123
32197599120,11cyclictest0-21swapper/312:05:013
32197599120,11cyclictest0-21swapper/309:05:013
32197599120,11cyclictest0-21swapper/308:50:013
32197599120,11cyclictest0-21swapper/308:00:173
32197599120,10cyclictest0-21swapper/312:10:113
32197599110,11cyclictest0-21swapper/309:25:213
32197599110,10cyclictest0-21swapper/312:20:013
32197599110,10cyclictest0-21swapper/311:45:173
32197599110,10cyclictest0-21swapper/311:00:013
32197599110,10cyclictest0-21swapper/308:30:123
32197599110,0cyclictest0-21swapper/312:40:013
32197599110,0cyclictest0-21swapper/310:45:013
32197599110,0cyclictest0-21swapper/310:15:143
32197599109,0cyclictest0-21swapper/310:20:103
321975991010,0cyclictest0-21swapper/311:30:163
321975991010,0cyclictest0-21swapper/311:19:563
32197599100,9cyclictest0-21swapper/311:40:173
32197599100,10cyclictest0-21swapper/311:39:563
32197599100,10cyclictest0-21swapper/311:20:133
32197599100,10cyclictest0-21swapper/308:20:173
32197599100,10cyclictest0-21swapper/307:54:553
32197599100,0cyclictest0-21swapper/312:25:143
32197599100,0cyclictest0-21swapper/311:55:143
32197599100,0cyclictest0-21swapper/311:05:013
32197599100,0cyclictest0-21swapper/307:30:123
3219759999,0cyclictest0-21swapper/310:45:023
3219759999,0cyclictest0-21swapper/309:30:123
3219759998,0cyclictest0-21swapper/310:50:113
3219759990,8cyclictest0-21swapper/311:55:013
3219759990,8cyclictest0-21swapper/310:30:113
3219759990,0cyclictest0-21swapper/311:05:193
3219759990,0cyclictest0-21swapper/309:35:133
3219759988,0cyclictest0-21swapper/311:10:193
3219759988,0cyclictest0-21swapper/308:55:133
3219759988,0cyclictest0-21swapper/308:40:563
3219759988,0cyclictest0-21swapper/307:35:183
3219759988,0cyclictest0-21swapper/307:15:143
3219759988,0cyclictest0-21swapper/307:10:133
320362281,4sleep30-21swapper/307:05:133
400404270,4sleep016-21ksoftirqd/010:35:160
3219759977,0cyclictest0-21swapper/309:45:183
3219759977,0cyclictest0-21swapper/308:50:063
3219759977,0cyclictest0-21swapper/308:35:163
3219759977,0cyclictest0-21swapper/307:45:163
3219759977,0cyclictest0-21swapper/307:25:193
3219759970,0cyclictest0-21swapper/309:10:153
3219759970,0cyclictest0-21swapper/307:25:003
3219759966,0cyclictest0-21swapper/310:10:013
3219759965,0cyclictest0-21swapper/309:20:193
3219759965,0cyclictest0-21swapper/307:55:143
3219759960,6cyclictest0-21swapper/311:25:193
3219759955,0cyclictest0-21swapper/310:12:253
3219759955,0cyclictest0-21swapper/309:55:163
3219759955,0cyclictest0-21swapper/309:15:153
3219759955,0cyclictest0-21swapper/308:10:133
3219759955,0cyclictest0-21swapper/308:05:133
3219759953,1cyclictest0-21swapper/312:08:563
3219759951,2cyclictest0-21swapper/308:25:123
3219759950,4cyclictest387965-21chrt10:04:563
3219759940,4cyclictest0-21swapper/309:50:273
3219759940,2cyclictest0-21swapper/307:40:103
321534242,1sleep10-21swapper/107:06:041
320168242,1sleep20-21swapper/207:05:052
444138230,2sleep2444351-21latency_hist12:20:012
393199231,2sleep2766-21snmpd10:19:292
391091230,1sleep1391117-21apt-get10:15:081
376013230,2sleep1375031-21/usr/sbin/munin09:25:211
369000230,1sleep1369026-21apt-get09:10:121
341903230,2sleep10-21swapper/108:00:121
3219759931,1cyclictest0-21swapper/310:35:113
3219759930,2cyclictest381645-21chrt09:40:033
3219759930,2cyclictest0-21swapper/312:20:133
321095231,1sleep00-21swapper/007:05:190
452105221,0sleep00-21swapper/012:36:360
451460220,1sleep2451631-21python312:35:182
450411220,1sleep1450429-21munin-run12:35:011
447540220,1sleep1447790-21users12:25:201
445387220,1sleep1445633-21sed12:20:201
440224220,1sleep20-21swapper/212:10:122
437104220,1sleep2437354-21users12:00:202
428236220,1sleep00-21swapper/011:40:160
422979220,1sleep2422980-21sshd11:29:422
420938220,1sleep2420956-21turbostat11:25:012
406061220,2sleep0406068-21dump-pmu-power10:50:010
403452220,1sleep0403454-21ssh10:42:410
399940220,1sleep1400204-21df10:35:131
398231220,1sleep00-21swapper/010:30:160
391523220,1sleep0391610-21awk10:15:110
385952220,1sleep0386100-21ntp_states09:55:180
382147220,0sleep00-21swapper/009:44:330
359674220,1sleep2359882-21ntpq08:45:152
357400220,1sleep2357670-21df_inode08:40:152
356683221,1sleep0351274-21kworker/0:2+events08:36:170
355307220,1sleep1355333-21apt-get08:35:101
341164220,0sleep00-21swapper/007:55:220
338324220,0sleep00-21swapper/007:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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