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2025-09-17 - 22:20
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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 highest latencies:
System rackcslot4.osadl.org (updated Wed Sep 17, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24233822269193,26sleep00-21swapper/007:07:320
24233582264191,27sleep10-21swapper/107:07:181
24237309913448,70cyclictest2502345-21apt-key09:50:020
2423735991165,93cyclictest2502354-21gpg-connect-age09:50:021
125899970,4rtkit-daemon1257-21rtkit-daemon11:53:241
24692712670,3chrt0-21swapper/009:00:270
25496122630,1sleep12549611-21sleep10:55:001
25843382540,10sleep013-21ksoftirqd/011:40:240
125899530,4rtkit-daemon1257-21rtkit-daemon10:18:071
125899510,4rtkit-daemon1257-21rtkit-daemon11:10:500
125899510,3rtkit-daemon1257-21rtkit-daemon09:33:181
125899490,3rtkit-daemon1257-21rtkit-daemon11:59:171
125899440,4rtkit-daemon2597537-21apt-get12:00:151
125899420,5rtkit-daemon2448401-21apt-get08:10:150
125899420,3rtkit-daemon1257-21rtkit-daemon09:25:221
125899390,3rtkit-daemon0-21swapper/011:07:180
125899380,3rtkit-daemon0-21swapper/008:51:160
125899380,3rtkit-daemon0-21swapper/008:43:280
125899370,3rtkit-daemon1257-21rtkit-daemon11:00:261
125899370,3rtkit-daemon0-21swapper/011:25:230
125899370,3rtkit-daemon0-21swapper/011:25:220
125899370,3rtkit-daemon0-21swapper/008:47:330
125899370,3rtkit-daemon0-21swapper/007:21:530
25813532360,4chrt0-21swapper/011:36:160
242373099366,6cyclictest13-21ksoftirqd/009:35:000
2423730993613,6cyclictest13-21ksoftirqd/011:15:140
125899360,4rtkit-daemon1257-21rtkit-daemon12:17:241
125899360,3rtkit-daemon0-21swapper/008:34:270
2423730993520,5cyclictest2556342-21ssh11:03:280
125899350,5rtkit-daemon2573929-21ssh11:25:481
125899350,5rtkit-daemon2573929-21ssh11:25:471
125899350,4rtkit-daemon1257-21rtkit-daemon11:23:200
125899350,4rtkit-daemon1257-21rtkit-daemon10:49:330
125899350,4rtkit-daemon1257-21rtkit-daemon09:16:010
125899350,4rtkit-daemon0-21swapper/112:25:050
125899350,3rtkit-daemon0-21swapper/012:09:290
125899350,3rtkit-daemon0-21swapper/009:55:540
125899350,3rtkit-daemon0-21swapper/007:29:030
2423730993419,4cyclictest13-21ksoftirqd/009:10:000
125899340,5rtkit-daemon2523097-21ssh10:17:320
125899340,4rtkit-daemon1257-21rtkit-daemon08:37:400
125899340,3rtkit-daemon0-21swapper/111:32:410
125899340,3rtkit-daemon0-21swapper/110:23:290
125899340,3rtkit-daemon0-21swapper/010:47:381
125899340,3rtkit-daemon0-21swapper/008:22:121
125899330,3rtkit-daemon0-21swapper/007:14:331
242373099326,2cyclictest141rcu_preempt09:35:230
242373099325,2cyclictest141rcu_preempt09:50:000
125899320,4rtkit-daemon1257-21rtkit-daemon07:41:001
125899320,4rtkit-daemon0-21swapper/107:41:240
125899320,4rtkit-daemon0-21swapper/009:21:501
125899320,3rtkit-daemon1257-21rtkit-daemon09:42:111
125899320,3rtkit-daemon0-21swapper/110:38:500
125899320,3rtkit-daemon0-21swapper/107:49:200
125899320,3rtkit-daemon0-21swapper/011:42:191
125899320,3rtkit-daemon0-21swapper/011:10:371
125899320,3rtkit-daemon0-21swapper/008:52:101
2423730993118,4cyclictest13-21ksoftirqd/007:55:000
2423730993115,3cyclictest13-21ksoftirqd/009:40:010
2423730993111,3cyclictest13-21ksoftirqd/012:30:180
2423730993110,8cyclictest13-21ksoftirqd/010:35:000
125899310,4rtkit-daemon1257-21rtkit-daemon10:09:371
125899310,4rtkit-daemon0-21swapper/011:23:531
125899310,3rtkit-daemon1257-21rtkit-daemon07:17:170
125899310,3rtkit-daemon0-21swapper/111:56:210
125899310,3rtkit-daemon0-21swapper/009:56:351
25929302300,11sleep013-21ksoftirqd/011:52:520
242373099309,2cyclictest141rcu_preempt09:00:010
2423730993015,4cyclictest13-21ksoftirqd/008:05:010
2423730993013,2cyclictest141rcu_preempt08:15:120
2423730993011,4cyclictest13-21ksoftirqd/010:09:070
2423730993010,4cyclictest13-21ksoftirqd/009:13:220
125899300,3rtkit-daemon0-21swapper/112:12:510
125899300,3rtkit-daemon0-21swapper/012:11:411
125899300,3rtkit-daemon0-21swapper/010:03:551
125899300,3rtkit-daemon0-21swapper/008:07:161
125899300,3rtkit-daemon0-21swapper/008:03:191
242373599295,16cyclictest2456224-21apt-get08:30:121
242373599292,21cyclictest2601003-21apt-get12:05:151
2423735992921,6cyclictest2500161-21ssh09:45:511
2423735992914,4cyclictest2456090-21wc08:30:001
242373099299,4cyclictest13-21ksoftirqd/012:37:160
2423730992911,4cyclictest13-21ksoftirqd/010:03:190
2423730992911,2cyclictest141rcu_preempt10:40:390
2423730992910,2cyclictest141rcu_preempt09:21:530
125899290,3rtkit-daemon1257-21rtkit-daemon10:55:020
125899290,3rtkit-daemon0-21swapper/011:39:131
2423735992814,9cyclictest2587072-21apt-get11:45:131
242373099288,4cyclictest13-21ksoftirqd/012:22:080
242373099287,4cyclictest13-21ksoftirqd/010:52:430
242373099287,4cyclictest13-21ksoftirqd/008:08:400
242373099285,14cyclictest13-21ksoftirqd/008:29:270
242373099285,10cyclictest13-21ksoftirqd/009:25:220
2423730992812,5cyclictest13-21ksoftirqd/012:15:320
125899280,3rtkit-daemon0-21swapper/008:19:041
242373599278,14cyclictest2557348-21apt-get11:05:151
2423735992712,9cyclictest2471960-21apt-get09:10:141
242373099279,3cyclictest13-21ksoftirqd/012:03:470
242373099278,4cyclictest13-21ksoftirqd/010:27:230
242373099278,4cyclictest13-21ksoftirqd/010:12:260
242373099276,4cyclictest13-21ksoftirqd/011:47:570
125899270,4rtkit-daemon0-21swapper/107:59:570
26133632260,3sleep12613370-21ssh12:22:361
242373599263,16cyclictest2539022-21apt-get10:40:141
242373099263,16cyclictest2452325-21apt-get08:20:150
242373599253,16cyclictest2466004-21apt-get08:55:141
2423730992511,2cyclictest141rcu_preempt07:11:140
125899250,21rtkit-daemon2423725-21cyclictest08:13:541
125899250,1rtkit-daemon1257-21rtkit-daemon07:45:421
242373599245,17cyclictest0-21swapper/107:37:001
242373599242,17cyclictest2575965-21apt-get11:30:141
242373099248,3cyclictest141rcu_preempt07:35:050
242373099241,6cyclictest0-21swapper/007:30:140
125899240,21rtkit-daemon1263-21sendmail-mta08:44:011
24431512230,9sleep10-21swapper/107:55:231
242373599239,3cyclictest24792622rm09:19:401
242373599233,14cyclictest2621264-21apt-get12:35:141
125899230,4rtkit-daemon1257-21rtkit-daemon09:09:441
125899230,1rtkit-daemon1257-21rtkit-daemon07:50:051
125899230,19rtkit-daemon2423725-21cyclictest08:36:211
242373599228,5cyclictest0-21swapper/110:55:281
242373599224,12cyclictest2617950-21apt-get12:30:151
242373599223,12cyclictest2614640-21apt-get12:25:141
242373599221,16cyclictest2535311-21apt-get10:35:141
125899220,18rtkit-daemon0-21swapper/110:28:581
125899220,14rtkit-daemon0-21swapper/110:21:301
242373599219,9cyclictest2462184-21ls08:45:141
242373599219,9cyclictest2432481-21df07:30:161
242373599212,13cyclictest2531830-21apt-get10:30:161
2423735992110,9cyclictest2427051-21/usr/sbin/munin07:15:211
242373599210,4cyclictest26-21ksoftirqd/110:15:001
125899210,17rtkit-daemon1257-21rtkit-daemon09:04:531
242373599208,10cyclictest2430843-21irqstats07:25:211
242373599208,10cyclictest2428978-21memory07:20:201
2423735991911,4cyclictest2471676-21diskmemload09:38:231
242373599190,17cyclictest2564951-21tune2fs11:15:191
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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