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2025-12-18 - 13:16
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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 Thu Dec 18, 2025 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3499202254187,53sleep00-21swapper/019:09:230
3497482254212,28sleep10-21swapper/119:07:301
4604752760,5chrt0-21swapper/123:45:171
3841222540,4sleep10-21swapper/120:35:021
179699520,4rtkit-daemon1795-21rtkit-daemon20:44:211
4517032510,4sleep10-21swapper/123:25:011
179699510,4rtkit-daemon1795-21rtkit-daemon23:58:461
179699500,4rtkit-daemon1795-21rtkit-daemon22:21:401
179699500,4rtkit-daemon1795-21rtkit-daemon22:02:390
179699500,4rtkit-daemon1795-21rtkit-daemon20:59:271
179699500,3rtkit-daemon1795-21rtkit-daemon21:30:360
179699490,4rtkit-daemon1795-21rtkit-daemon22:31:260
179699480,4rtkit-daemon1795-21rtkit-daemon20:28:380
179699470,3rtkit-daemon1795-21rtkit-daemon20:31:080
179699440,4rtkit-daemon1795-21rtkit-daemon23:30:410
179699440,3rtkit-daemon1795-21rtkit-daemon21:52:510
179699420,3rtkit-daemon1795-21rtkit-daemon20:51:021
179699410,6rtkit-daemon442775-21ntp_states23:00:220
179699410,3rtkit-daemon0-21swapper/019:45:430
179699390,3rtkit-daemon0-21swapper/019:10:240
179699380,5rtkit-daemon478826-21users00:30:261
35008299373,26cyclictest461902-21apt-get23:50:131
179699370,3rtkit-daemon0-21swapper/019:42:070
179699370,3rtkit-daemon0-21swapper/000:37:010
179699360,4rtkit-daemon1795-21rtkit-daemon23:50:150
179699350,4rtkit-daemon1795-21rtkit-daemon19:32:501
179699350,3rtkit-daemon0-21swapper/022:53:571
35008299341,2cyclictest141rcu_preempt19:10:131
179699340,4rtkit-daemon1795-21rtkit-daemon21:03:291
179699340,3rtkit-daemon0-21swapper/021:08:380
179699330,4rtkit-daemon1795-21rtkit-daemon00:23:250
179699330,4rtkit-daemon0-21swapper/120:45:020
179699330,3rtkit-daemon0-21swapper/121:27:251
179699330,3rtkit-daemon0-21swapper/121:04:320
179699330,3rtkit-daemon0-21swapper/120:20:130
179699330,3rtkit-daemon0-21swapper/120:11:051
179699330,3rtkit-daemon0-21swapper/021:55:231
179699330,3rtkit-daemon0-21swapper/020:01:241
4299572320,29sleep1430085-21df_inode22:30:141
179699320,4rtkit-daemon1795-21rtkit-daemon21:39:510
179699320,4rtkit-daemon1795-21rtkit-daemon20:50:490
179699320,3rtkit-daemon1795-21rtkit-daemon22:25:180
179699320,3rtkit-daemon0-21swapper/123:59:510
179699320,3rtkit-daemon0-21swapper/122:19:120
179699320,3rtkit-daemon0-21swapper/119:28:250
179699320,3rtkit-daemon0-21swapper/021:52:381
179699320,3rtkit-daemon0-21swapper/019:16:421
179699320,3rtkit-daemon0-21swapper/000:27:211
350082993128,2cyclictest18150irq/39-mmc023:00:221
350078993114,11cyclictest455648-21apt-get23:35:150
179699310,4rtkit-daemon1795-21rtkit-daemon23:19:280
179699310,4rtkit-daemon1795-21rtkit-daemon20:46:041
179699310,4rtkit-daemon1795-21rtkit-daemon20:37:530
179699310,3rtkit-daemon1795-21rtkit-daemon22:24:220
179699310,3rtkit-daemon1795-21rtkit-daemon22:08:541
179699310,3rtkit-daemon0-21swapper/022:40:251
179699310,3rtkit-daemon0-21swapper/022:25:261
179699310,2rtkit-daemon0-21swapper/022:02:321
350078993014,10cyclictest386486-21apt-get20:40:140
179699300,3rtkit-daemon0-21swapper/121:21:260
179699300,3rtkit-daemon0-21swapper/120:06:160
179699300,3rtkit-daemon0-21swapper/119:24:480
179699300,3rtkit-daemon0-21swapper/023:30:481
179699300,3rtkit-daemon0-21swapper/021:45:311
179699290,4rtkit-daemon1795-21rtkit-daemon19:28:011
179699290,4rtkit-daemon0-21swapper/119:35:260
179699290,3rtkit-daemon0-21swapper/023:17:281
179699290,3rtkit-daemon0-21swapper/021:12:181
179699290,3rtkit-daemon0-21swapper/020:30:401
35007899283,17cyclictest443954-21apt-get23:05:110
179699280,4rtkit-daemon1795-21rtkit-daemon19:49:311
179699280,3rtkit-daemon1795-21rtkit-daemon21:18:191
179699280,3rtkit-daemon0-21swapper/122:07:140
179699280,3rtkit-daemon0-21swapper/121:17:590
179699280,3rtkit-daemon0-21swapper/023:42:061
179699280,3rtkit-daemon0-21swapper/021:34:171
179699280,3rtkit-daemon0-21swapper/020:29:201
35007899270,7cyclictest352967-21diskstats19:15:150
179699270,4rtkit-daemon1795-21rtkit-daemon22:58:330
179699270,3rtkit-daemon0-21swapper/000:38:311
35008299262,6cyclictest379921-21perf20:25:001
35008299262,16cyclictest440043-21apt-get22:55:111
350082992612,9cyclictest467786-21apt-get00:05:161
179699250,1rtkit-daemon1795-21rtkit-daemon00:33:210
179699250,1rtkit-daemon1795-21rtkit-daemon00:26:550
35008299243,15cyclictest431824-21apt-get22:35:141
35008299240,19cyclictest436056-40apt-check22:45:131
35007899242,16cyclictest416217-21apt-get21:55:120
35007899242,15cyclictest445894-21apt-get23:10:090
179699240,1rtkit-daemon1795-21rtkit-daemon23:46:270
179699240,1rtkit-daemon1795-21rtkit-daemon22:39:570
179699240,1rtkit-daemon1795-21rtkit-daemon21:46:550
179699240,1rtkit-daemon1795-21rtkit-daemon21:40:180
179699240,1rtkit-daemon1795-21rtkit-daemon19:59:460
179699240,16rtkit-daemon0-21swapper/100:00:191
35007899233,12cyclictest433790-21apt-get22:40:120
35007899232,15cyclictest449816-21apt-get23:20:160
35007899232,14cyclictest370326-21apt-get20:00:130
179699230,1rtkit-daemon1795-21rtkit-daemon23:28:420
179699230,1rtkit-daemon1795-21rtkit-daemon22:46:260
179699230,1rtkit-daemon1795-21rtkit-daemon22:20:001
179699230,1rtkit-daemon1795-21rtkit-daemon00:18:150
179699230,1rtkit-daemon1795-21rtkit-daemon00:08:190
179699230,18rtkit-daemon0-21swapper/021:25:260
35008299222,15cyclictest469729-21apt-get00:10:141
35008299220,4cyclictest473954-21fschecks_time00:20:151
35008299220,20cyclictest412231-21latency_hist21:45:001
350078992213,7cyclictest471194-21sshd00:12:100
179699220,1rtkit-daemon1795-21rtkit-daemon21:13:270
179699220,17rtkit-daemon1795-21rtkit-daemon23:39:061
179699220,17rtkit-daemon1795-21rtkit-daemon23:28:261
35008299213,16cyclictest356546-21cat19:25:011
35008299212,13cyclictest407715-21apt-get21:35:121
35008299211,3cyclictest445707-21munin-run23:09:591
35007899217,9cyclictest358617-21apt-get19:30:140
35007899213,11cyclictest422079-21apt-get22:10:130
35007899213,10cyclictest465842-21apt-get00:00:130
35007899213,10cyclictest366413-21apt-get19:50:120
35007899212,14cyclictest376200-21apt-get20:15:140
35007899212,13cyclictest438101-21apt-get22:50:140
179699210,1rtkit-daemon1795-21rtkit-daemon19:37:081
35008299203,10cyclictest372266-21apt-get20:05:141
35008299202,17cyclictest26-21ksoftirqd/123:10:141
35008299202,16cyclictest368135-21cat19:54:551
350082992011,7cyclictest422679-21memory22:10:191
350082992010,7cyclictest471852-21ls00:15:151
35008299200,18cyclictest376508-21fschecks_time20:15:181
179699200,12rtkit-daemon0-21swapper/023:42:290
35008299197,10cyclictest362830-21fschecks_time19:40:171
350078991910,7cyclictest393451-21sed20:55:240
350082991813,3cyclictest402775-21head21:20:201
350082991810,6cyclictest397709-21seq21:07:211
35007899189,7cyclictest374988-21ntpq20:10:180
35008299170,8cyclictest893-21snmpd19:59:241
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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