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2026-07-01 - 07:42
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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 rackcslot4.osadl.org (updated Wed Jul 01, 2026 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15674622295260,19sleep10-21swapper/119:05:201
15688042259186,59sleep00-21swapper/019:08:130
173227221530,4sleep1251rcuc/123:48:351
179699630,5rtkit-daemon1795-21rtkit-daemon21:40:211
179699530,4rtkit-daemon1795-21rtkit-daemon23:21:071
179699520,4rtkit-daemon1795-21rtkit-daemon19:49:091
179699500,3rtkit-daemon0-21swapper/021:05:220
179699480,4rtkit-daemon1795-21rtkit-daemon19:32:031
179699480,3rtkit-daemon0-21swapper/021:25:190
179699480,3rtkit-daemon0-21swapper/020:25:150
17415532480,4sleep01741556-21timerwakeupswit00:00:260
179699470,3rtkit-daemon0-21swapper/023:43:200
179699470,3rtkit-daemon0-21swapper/021:20:150
16854422460,4sleep10-21swapper/122:44:201
179699450,3rtkit-daemon0-21swapper/021:11:500
179699450,3rtkit-daemon0-21swapper/019:13:310
179699440,3rtkit-daemon0-21swapper/020:30:540
179699440,3rtkit-daemon0-21swapper/019:26:560
179699430,3rtkit-daemon0-21swapper/020:59:430
179699430,3rtkit-daemon0-21swapper/020:02:310
179699420,3rtkit-daemon0-21swapper/020:23:430
179699420,3rtkit-daemon0-21swapper/000:27:180
179699410,3rtkit-daemon0-21swapper/021:59:430
179699410,3rtkit-daemon0-21swapper/020:17:160
179699400,3rtkit-daemon0-21swapper/019:24:580
179699370,2rtkit-daemon0-21swapper/021:52:580
179699360,4rtkit-daemon1795-21rtkit-daemon22:35:211
179699350,4rtkit-daemon1795-21rtkit-daemon23:12:581
179699330,4rtkit-daemon1795-21rtkit-daemon23:18:451
1569116993329,2cyclictest1646456-21munin-run21:50:001
156911699330,11cyclictest1740043-21idleruntime-cro00:00:011
179699320,4rtkit-daemon1795-21rtkit-daemon22:57:471
179699320,4rtkit-daemon1795-21rtkit-daemon00:08:291
1569116993229,2cyclictest66950irq/132-enp2s021:21:351
1569116993210,4cyclictest26-21ksoftirqd/100:02:191
1569109993217,9cyclictest1603466-21apt-get20:35:140
179699310,4rtkit-daemon1616951-21diskmemload22:51:261
179699310,1rtkit-daemon1795-21rtkit-daemon00:36:000
179699300,1rtkit-daemon1795-21rtkit-daemon21:18:080
16670072300,4sleep10-21swapper/122:18:081
156910999308,6cyclictest1693771-21kernelversion22:55:190
179699290,4rtkit-daemon1795-21rtkit-daemon22:14:011
179699290,4rtkit-daemon1795-21rtkit-daemon19:46:080
179699290,3rtkit-daemon0-21swapper/022:11:370
179699290,1rtkit-daemon1795-21rtkit-daemon20:14:200
1569116992926,2cyclictest66950irq/132-enp2s023:54:431
179699280,4rtkit-daemon1795-21rtkit-daemon22:38:380
17010192280,24sleep11701057-21ntpq23:05:211
1569116992824,2cyclictest18150irq/39-mmc021:25:031
1569116992818,6cyclictest1671768-21apt-get22:25:141
156910999287,5cyclictest1714475-21cat23:25:010
156910999281,8cyclictest1616951-21diskmemload23:10:120
1569109992812,10cyclictest1639410-21apt-get21:40:140
1569116992724,2cyclictest66950irq/132-enp2s023:01:331
1569116992715,11cyclictest850-21runrttasks21:14:551
1569116992713,8cyclictest66950irq/132-enp2s021:35:111
1569116992712,10cyclictest1571771-21apt-get19:15:141
1569116992712,10cyclictest1571771-21apt-get19:15:131
156911699270,7cyclictest1581784-21sendmail19:40:001
156910999277,7cyclictest1689428-21grep22:50:010
156910999272,5cyclictest1616951-21diskmemload23:27:060
156910999271,8cyclictest1616951-21diskmemload23:03:590
156910999271,13cyclictest1616951-21diskmemload23:54:030
179699260,5rtkit-daemon1729677-21ssh23:45:150
156911699268,10cyclictest261ksoftirqd/121:00:231
156911699262,17cyclictest1757437-21apt-get00:30:141
1569116992613,7cyclictest66950irq/132-enp2s021:15:131
156911699261,20cyclictest1581978-21apt-get19:40:141
156911699260,8cyclictest1719973-21ssh23:30:411
156910999268,8cyclictest13-21ksoftirqd/021:01:020
156910999268,3cyclictest13-21ksoftirqd/022:05:010
179699250,2rtkit-daemon1795-21rtkit-daemon00:08:070
179699250,1rtkit-daemon1795-21rtkit-daemon00:15:531
156911699252,15cyclictest1675212-21apt-get22:30:131
1569116992513,7cyclictest66950irq/132-enp2s000:20:151
156910999255,7cyclictest1609266-21cat20:50:000
156910999255,5cyclictest1708713-21tail23:15:270
156910999254,9cyclictest13-21ksoftirqd/022:26:130
156910999254,3cyclictest141rcu_preempt22:05:110
156910999253,3cyclictest141rcu_preempt23:31:100
156911699242,14cyclictest1576102-21apt-get19:25:121
1569116992413,6cyclictest1714579-21apt-get23:25:141
156911699241,15cyclictest1760886-21apt-get00:35:141
156911699241,10cyclictest1640867-21kworker/u8:122:00:121
156911699240,12cyclictest66950irq/132-enp2s000:26:281
156910999247,7cyclictest13-21ksoftirqd/019:31:090
156910999243,14cyclictest1664417-21apt-get22:15:120
156910999241,6cyclictest1616951-21diskmemload22:43:380
1569109992410,3cyclictest1616951-21diskmemload23:06:420
179699230,4rtkit-daemon1795-21rtkit-daemon20:11:001
179699230,3rtkit-daemon0-21swapper/020:44:410
1569116992310,7cyclictest66950irq/132-enp2s022:45:141
156910999239,3cyclictest1616951-21diskmemload00:10:170
156910999239,3cyclictest1616951-21diskmemload00:10:170
156910999236,2cyclictest798-21thermald21:35:210
156910999236,10cyclictest1689568-21apt-get22:50:150
156910999234,5cyclictest1757730-21tune2fs00:30:170
156910999233,4cyclictest13-21ksoftirqd/023:56:560
156910999232,15cyclictest1675212-21apt-get22:30:120
156910999232,14cyclictest1632155-21apt-get21:30:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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