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2026-08-26 - 21:51
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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 rackdslot3.osadl.org (updated Wed Aug 26, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491229165,52phc2sys0-21swapper/307:05:403
182162206173,22sleep20-21swapper/207:08:152
180432204171,22sleep10-21swapper/107:06:041
180522203171,22sleep00-21swapper/007:06:120
167221690,21sleep21864799cyclictest09:55:222
788821550,6sleep31864899cyclictest10:10:123
57898930,71rtkit-daemon0-21swapper/007:10:010
1864799661,63cyclictest28655-21kworker/2:211:15:332
1835326535,22sleep30-21swapper/307:10:013
1864599591,22cyclictest4240-21/usr/sbin/munin07:45:190
1864599590,20cyclictest2726-21latency08:50:200
1864599570,19cyclictest20514-21awk11:40:280
309572510,2sleep00-21swapper/010:55:260
1864799490,46cyclictest12993-21tr11:25:242
308712470,2sleep20-21swapper/208:40:262
139391470,1ptp4l0-21swapper/311:05:423
18646994617,27cyclictest0-21swapper/107:11:231
18646994540,3cyclictest25692-21sh11:55:001
18646994214,27cyclictest0-21swapper/110:40:131
1864699418,3cyclictest26487-21seq10:47:401
18648994035,3cyclictest41-21ksoftirqd/311:00:003
18647994031,6cyclictest33-21ksoftirqd/211:55:002
18647994016,22cyclictest0-21swapper/212:07:232
139391400,0ptp4l401ktimersoftd/309:10:203
18648993935,2cyclictest14674-21cron12:40:003
18648993934,3cyclictest41-21ksoftirqd/309:29:593
1864699390,37cyclictest0-21swapper/107:42:541
139391390,1ptp4l401ktimersoftd/307:21:343
18648993834,2cyclictest41-21ksoftirqd/311:50:003
18648993834,2cyclictest41-21ksoftirqd/310:25:003
18648993834,2cyclictest41-21ksoftirqd/309:25:003
1864899383,3cyclictest41-21ksoftirqd/307:59:593
18648993833,3cyclictest41-21ksoftirqd/309:55:003
18648993833,3cyclictest41-21ksoftirqd/309:00:003
18648993827,9cyclictest41-21ksoftirqd/310:15:183
18647993832,4cyclictest33-21ksoftirqd/211:15:012
18647993831,5cyclictest33-21ksoftirqd/210:15:012
18647993818,18cyclictest33-21ksoftirqd/209:23:172
18647993818,18cyclictest31428-21apt-get11:00:042
18647993818,18cyclictest31428-21apt-get11:00:032
1864799381,34cyclictest14523-1kworker/2:2H10:50:002
134491380,6getstats1864899cyclictest11:10:223
18648993733,2cyclictest41-21ksoftirqd/311:40:003
18648993733,2cyclictest41-21ksoftirqd/311:19:593
18648993732,3cyclictest41-21ksoftirqd/309:35:193
18647993731,3cyclictest33-21ksoftirqd/210:18:582
1864599370,19cyclictest0-21swapper/008:20:150
18648993631,3cyclictest41-21ksoftirqd/312:15:013
18648993631,3cyclictest41-21ksoftirqd/307:35:183
18648993630,4cyclictest41-21ksoftirqd/312:02:473
18648993630,4cyclictest41-21ksoftirqd/312:02:473
18648993630,4cyclictest41-21ksoftirqd/308:27:553
18647993630,4cyclictest33-21ksoftirqd/209:14:152
18647993630,4cyclictest33-21ksoftirqd/209:06:122
1864799360,9cyclictest207-21systemd-journal09:42:212
18646993630,4cyclictest25-21ksoftirqd/112:00:301
18646993630,4cyclictest25-21ksoftirqd/112:00:301
18646993614,19cyclictest10555-21df_abs10:15:131
1864699361,31cyclictest21234-21find08:20:231
18645993630,4cyclictest9-21ksoftirqd/010:52:370
18648993531,3cyclictest41-21ksoftirqd/307:40:203
18648993531,2cyclictest41-21ksoftirqd/312:00:003
18648993530,3cyclictest41-21ksoftirqd/310:10:003
18648993530,3cyclictest41-21ksoftirqd/308:40:183
18648993530,3cyclictest41-21ksoftirqd/308:19:593
18647993530,3cyclictest33-21ksoftirqd/209:47:102
18647993529,4cyclictest33-21ksoftirqd/212:36:052
1864799352,30cyclictest7562-21wc09:00:202
18647993512,20cyclictest7393-21seq12:22:522
18647993510,22cyclictest12628-21/usr/sbin/munin10:20:162
1864799350,3cyclictest13670-1kworker/2:0H11:45:012
1864699359,23cyclictest417-21/usr/sbin/munin09:55:231
1864699355,29cyclictest0-21swapper/111:15:431
18646993530,3cyclictest25-21ksoftirqd/110:55:011
18646993530,3cyclictest25-21ksoftirqd/110:30:181
18646993529,4cyclictest25-21ksoftirqd/112:28:421
18646993529,4cyclictest25-21ksoftirqd/112:18:511
18646993529,4cyclictest25-21ksoftirqd/109:27:141
18646993529,4cyclictest25-21ksoftirqd/107:46:051
18646993529,4cyclictest25-21ksoftirqd/107:21:381
18645993529,3cyclictest10013-21sh10:15:010
18648993430,3cyclictest41-21ksoftirqd/309:30:103
18648993430,3cyclictest41-21ksoftirqd/307:45:193
18648993430,2cyclictest41-21ksoftirqd/308:13:583
18648993429,3cyclictest41-21ksoftirqd/310:30:183
18648993429,3cyclictest41-21ksoftirqd/310:01:213
18648993429,3cyclictest41-21ksoftirqd/309:01:333
18648993428,4cyclictest41-21ksoftirqd/311:51:293
18648993428,4cyclictest41-21ksoftirqd/310:35:473
18648993428,4cyclictest41-21ksoftirqd/310:25:133
18648993428,4cyclictest41-21ksoftirqd/308:05:123
18648993423,9cyclictest41-21ksoftirqd/308:20:263
18647993429,3cyclictest33-21ksoftirqd/212:30:582
18647993429,3cyclictest33-21ksoftirqd/212:30:582
18647993428,4cyclictest33-21ksoftirqd/211:22:202
18647993428,4cyclictest33-21ksoftirqd/210:54:122
18647993428,4cyclictest33-21ksoftirqd/208:51:042
18647993428,3cyclictest33-21ksoftirqd/210:06:132
18647993427,5cyclictest33-21ksoftirqd/208:36:042
18647993412,20cyclictest28737-21df_abs07:30:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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