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2026-05-14 - 14:56
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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 14, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
346007599120,8cyclictest0-21swapper/312:25:113
346007599120,1cyclictest0-21swapper/311:25:113
346007599120,11cyclictest0-21swapper/311:45:123
346007599120,11cyclictest0-21swapper/308:05:013
346007599120,11cyclictest0-21swapper/307:25:003
346007599120,0cyclictest0-21swapper/311:40:123
3460075991111,0cyclictest0-21swapper/309:22:203
346007599110,1cyclictest0-21swapper/309:40:003
346007599110,10cyclictest0-21swapper/312:20:123
346007599110,10cyclictest0-21swapper/310:25:173
346007599110,10cyclictest0-21swapper/308:20:133
346007599110,0cyclictest0-21swapper/312:15:173
346007599110,0cyclictest0-21swapper/311:05:113
346007599110,0cyclictest0-21swapper/308:45:023
346007599109,0cyclictest0-21swapper/311:55:123
346007599109,0cyclictest0-21swapper/311:30:173
346007599109,0cyclictest0-21swapper/311:20:143
346007599109,0cyclictest0-21swapper/310:50:143
346007599109,0cyclictest0-21swapper/309:15:173
3460075991010,0cyclictest0-21swapper/312:00:163
3460075991010,0cyclictest0-21swapper/310:14:173
3460075991010,0cyclictest0-21swapper/308:55:133
3460075991010,0cyclictest0-21swapper/308:10:153
3460075991010,0cyclictest0-21swapper/307:30:113
346007599100,9cyclictest0-21swapper/308:15:103
346007599100,10cyclictest0-21swapper/310:55:183
34600759999,0cyclictest0-21swapper/311:10:543
34600759999,0cyclictest0-21swapper/310:45:013
34600759999,0cyclictest0-21swapper/310:20:123
34600759999,0cyclictest0-21swapper/310:05:123
34600759999,0cyclictest0-21swapper/309:55:183
34600759999,0cyclictest0-21swapper/309:30:113
34600759999,0cyclictest0-21swapper/308:45:113
34600759998,0cyclictest0-21swapper/311:50:153
34600759998,0cyclictest0-21swapper/310:00:113
34600759998,0cyclictest0-21swapper/309:50:103
34600759998,0cyclictest0-21swapper/307:44:353
34600759990,8cyclictest0-21swapper/312:35:193
34600759988,0cyclictest0-21swapper/312:30:133
34600759988,0cyclictest0-21swapper/310:41:463
34600759988,0cyclictest0-21swapper/309:10:203
34600759988,0cyclictest0-21swapper/308:35:143
34600759988,0cyclictest0-21swapper/307:25:133
34600759988,0cyclictest0-21swapper/307:12:083
34600759987,0cyclictest0-21swapper/309:40:133
34600759987,0cyclictest0-21swapper/307:15:193
34600759980,7cyclictest0-21swapper/312:05:113
34600759980,7cyclictest0-21swapper/309:00:133
34600759977,0cyclictest0-21swapper/309:05:183
34600759977,0cyclictest0-21swapper/308:30:103
34600759977,0cyclictest0-21swapper/308:30:103
34600759977,0cyclictest0-21swapper/307:55:023
3459743271,3sleep30-21swapper/307:07:343
3520437260,0sleep1341rcuc/109:40:181
34600759966,0cyclictest0-21swapper/309:26:083
34600759966,0cyclictest0-21swapper/307:35:173
34600759960,6cyclictest0-21swapper/308:05:183
34600759960,5cyclictest0-21swapper/307:50:173
3459647261,1sleep10-21swapper/107:06:201
34600759955,0cyclictest0-21swapper/311:35:053
34600759955,0cyclictest0-21swapper/310:36:073
34600759955,0cyclictest0-21swapper/308:25:123
34600759955,0cyclictest0-21swapper/307:45:113
34600759954,0cyclictest0-21swapper/311:02:023
34600759954,0cyclictest0-21swapper/310:30:123
34600759951,2cyclictest0-21swapper/312:10:123
34600759950,4cyclictest0-21swapper/310:15:163
34600759950,2cyclictest0-21swapper/309:45:123
34600759944,0cyclictest0-21swapper/311:16:413
34600759944,0cyclictest0-21swapper/308:51:483
3458722241,1sleep00-21swapper/007:05:150
3458025242,1sleep20-21swapper/207:05:012
3568942230,2sleep03569096-21ntpq11:35:160
3542757230,1sleep03542783-21apt-get10:35:120
3479276230,2sleep03479466-21cat07:55:190
3592863220,1sleep13592867-21ssh12:32:501
3590508220,0sleep00-21swapper/012:25:230
3585013220,1sleep13585014-21/usr/sbin/munin12:15:111
3582770220,0sleep00-21swapper/012:10:020
3572101220,0sleep00-21swapper/011:43:400
3560330222,0sleep1351ktimers/111:15:161
3546687220,1sleep03547174-21sh10:45:010
3538590220,0sleep13538620-21apt-get10:25:121
3529971220,1sleep03529977-21ssh10:04:540
3517480220,1sleep00-21swapper/009:35:000
3517292220,1sleep00-21swapper/009:33:040
3507651220,1sleep23507681-21apt-get09:10:132
3501023220,1sleep13501273-21/usr/sbin/munin08:50:191
3500875220,0sleep00-21swapper/008:50:180
3499669220,0sleep00-21swapper/008:49:090
3487701220,1sleep13487702-21cron08:20:011
3466209220,1sleep03466222-21munin-run07:25:000
3459936220,1sleep13460220-21latency_hist07:10:001
3595038210,0sleep00-21swapper/012:38:400
3594376210,0sleep10-21swapper/112:35:211
3593113210,0sleep20-21swapper/212:35:022
3592648210,1sleep00-21swapper/012:30:510
3589230210,0sleep10-21swapper/112:25:121
3588906210,0sleep10-21swapper/112:24:401
3587491210,0sleep00-21swapper/012:20:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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