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2026-04-01 - 09:39
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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 all highest latencies:
System rackeslot2.osadl.org (updated Wed Apr 01, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
218799021610,2sleep30-21swapper/300:01:163
190835221080,3sleep30-21swapper/320:51:173
21473472700,1sleep12147346-21ssh23:34:241
20027522500,1sleep00-21swapper/021:56:230
1776319992721,4cyclictest16-21ksoftirqd/023:00:000
1776320992421,2cyclictest2124742-21wc23:20:001
1776320992316,2cyclictest0-21swapper/123:06:221
177631999231,11cyclictest1875609-21tr20:26:190
1776320992214,3cyclictest0-21swapper/119:40:001
177631999223,8cyclictest16-21ksoftirqd/020:56:170
1776319992219,2cyclictest1922749-21gpgconf21:05:000
1776319992214,3cyclictest16-21ksoftirqd/000:20:000
177632199211,9cyclictest0-21swapper/223:20:002
1776321992119,1cyclictest0-21swapper/223:30:012
1776321992118,1cyclictest0-21swapper/220:50:002
1776321992118,1cyclictest0-21swapper/200:20:022
1776321992118,1cyclictest0-21swapper/200:00:002
1776319992114,6cyclictest2138235-21grep23:26:200
1776319992111,5cyclictest1810610-21cat19:36:120
1776319992110,6cyclictest0-21swapper/021:41:160
177631999210,10cyclictest2200515-21mailstats00:11:170
1776321992018,1cyclictest0-21swapper/223:10:022
1776321992017,1cyclictest0-21swapper/220:20:002
1776321992017,1cyclictest0-21swapper/219:30:002
177631999207,3cyclictest191rcu_preempt20:50:000
177631999201,7cyclictest1968761-21ssh21:36:160
1776319992012,4cyclictest1904430-21tail20:51:100
1776319992012,3cyclictest16-21ksoftirqd/019:15:020
1776319992011,8cyclictest1983853-21kthreadcore21:46:170
1776319992011,8cyclictest1983853-21kthreadcore21:46:170
1776319992010,5cyclictest0-21swapper/021:51:220
1776321991916,1cyclictest0-21swapper/221:20:012
177632099197,5cyclictest0-21swapper/121:26:101
177632099192,11cyclictest1290-21dbus-daemon22:20:021
1776320991916,2cyclictest1866245-21apt-key20:20:001
1776320991912,6cyclictest2088362-21if_eno122:56:161
177631999196,2cyclictest2211543-21irqcore00:21:150
1776319991916,2cyclictest2109807-21apt-key23:10:020
1776319991916,2cyclictest1960570-21fschecks_count21:31:130
1776319991912,2cyclictest191rcu_preempt21:15:000
2649091180,2phc2sys0-21swapper/323:28:133
2649091180,2phc2sys0-21swapper/321:10:503
2649091180,1phc2sys0-21swapper/323:45:503
2649091180,13phc2sys0-21swapper/320:18:083
1776321991816,1cyclictest0-21swapper/220:05:022
1776321991816,1cyclictest0-21swapper/200:40:012
1776321991815,1cyclictest0-21swapper/222:16:202
1776321991815,1cyclictest0-21swapper/222:05:002
1776321991814,2cyclictest0-21swapper/222:39:322
1776320991815,2cyclictest1996-21runrttasks22:22:321
1776320991815,2cyclictest1859984-21systemd-run20:15:011
1776320991811,3cyclictest1776317-21cyclictest00:10:021
1776320991810,4cyclictest0-21swapper/122:06:161
177631999189,5cyclictest2233299-21aten2.4-expect00:36:100
177631999189,5cyclictest2081668-21kthreadcore22:51:160
177631999188,5cyclictest0-21swapper/023:41:200
177631999188,5cyclictest0-21swapper/021:16:100
177631999187,2cyclictest1847410-21kworker/0:1+rcu_gp20:10:010
177631999186,2cyclictest191rcu_preempt20:16:100
177631999186,2cyclictest191rcu_preempt00:00:000
177631999182,5cyclictest1807485-21tr19:31:180
1776319991815,2cyclictest3851705-21mta-sts-daemon00:26:250
1776319991814,3cyclictest2163312-21apt23:46:090
1776319991813,1cyclictest191rcu_preempt19:16:160
1776319991812,1cyclictest191rcu_preempt19:26:120
1776319991810,4cyclictest2032044-21kthreadcore22:16:160
1776319991810,4cyclictest1947835-21kthreadcore21:21:170
2649091170,2phc2sys0-21swapper/321:25:493
2649091170,2phc2sys0-21swapper/321:15:113
22284732170,2sleep20-21swapper/200:31:172
21204642170,2sleep0241rcuc/023:16:160
1776321991715,1cyclictest0-21swapper/221:55:012
1776321991714,1cyclictest0-21swapper/223:36:102
1776321991714,1cyclictest0-21swapper/223:15:022
1776321991714,1cyclictest0-21swapper/221:15:012
1776320991714,2cyclictest3824500-21cron23:40:021
1776320991714,2cyclictest2239970-21cron00:40:001
1776320991714,2cyclictest1996-21runrttasks00:17:401
1776320991714,2cyclictest1975510-21sh21:41:111
1776320991714,2cyclictest0-21swapper/100:00:011
1776320991713,3cyclictest1932831-21kthreadcore21:11:181
1776320991713,2cyclictest0-21swapper/123:40:001
1776320991710,3cyclictest1929152-21diskmemload21:17:431
177631999179,2cyclictest0-21swapper/023:25:000
177631999179,1cyclictest501rcuop/220:21:230
177631999178,5cyclictest2095153-21tail23:01:120
1776319991714,2cyclictest2192947-21sh00:05:020
1776319991714,2cyclictest2147624-21systemd-run23:35:010
1776319991714,2cyclictest2026883-21systemd-run22:15:000
1776319991714,2cyclictest1953108-21grep21:26:130
1776319991714,2cyclictest1929185-21awk21:10:000
1776319991713,3cyclictest3834587-17auditd22:38:440
1776319991712,4cyclictest2148920-21tail23:36:130
1776319991711,5cyclictest3851875-21systemd-journal20:40:000
1776319991711,5cyclictest1929152-21diskmemload23:51:400
1776319991711,4cyclictest1-21systemd22:35:010
177631999170,7cyclictest1891851-21apt-get20:41:080
177631999170,7cyclictest1880219-21sed20:31:150
177631999170,6cyclictest2043283-21hddtemp_smartct22:26:150
2649091160,4phc2sys0-21swapper/323:34:393
2649091160,2phc2sys0-21swapper/322:31:593
2649091160,2phc2sys0-21swapper/322:25:293
2649091160,2phc2sys0-21swapper/300:38:543
2649091160,2phc2sys0-21swapper/300:17:293
2649091160,1phc2sys0-21swapper/319:50:033
1776321991614,1cyclictest0-21swapper/222:06:192
1776321991614,1cyclictest0-21swapper/219:15:022
1776321991613,1cyclictest0-21swapper/222:55:012
1776321991613,1cyclictest0-21swapper/222:21:132
1776321991613,1cyclictest0-21swapper/220:11:152
1776321991613,1cyclictest0-21swapper/219:46:162
1776321991613,1cyclictest0-21swapper/200:21:112
177632099169,3cyclictest0-21swapper/100:15:001
1776320991614,1cyclictest1996-21runrttasks21:35:341
1776320991613,2cyclictest3851704-21mta-sts-daemon21:01:201
1776320991613,2cyclictest2079555-21systemd-run22:50:021
1776320991613,2cyclictest2043224-21grep22:26:141
1776320991613,2cyclictest1885195-21kworker/u16:3+events_unbound22:55:021
1776320991613,2cyclictest1785970-21gltestperf19:16:141
1776320991613,2cyclictest1783246-21kthreadcore19:15:011
1776320991613,2cyclictest0-21swapper/121:35:001
1776320991612,3cyclictest2113305-21kthreadcore23:11:171
1776320991612,3cyclictest1889753-21kthreadcore20:36:171
1776320991612,3cyclictest1804353-21cpuspeed_turbos19:31:121
1776320991611,4cyclictest3851705-21mta-sts-daemon23:27:241
1776320991611,4cyclictest3834328-21sendmail-mta00:27:571
1776320991610,5cyclictest1949982-21nfs4_client21:21:201
1776320991610,2cyclictest1929152-21diskmemload21:45:231
1776320991610,2cyclictest1929152-21diskmemload21:45:231
177632099160,3cyclictest0-21swapper/119:55:501
177631999169,6cyclictest3851702-21mta-sts-daemon20:01:140
177631999168,7cyclictest1833323-21tr19:51:170
177631999168,7cyclictest0-21swapper/022:05:010
177631999168,2cyclictest0-21swapper/022:48:270
177631999166,2cyclictest191rcu_preempt23:11:100
177631999164,7cyclictest16-21ksoftirqd/019:56:240
1776319991615,1cyclictest0-21swapper/022:20:260
1776319991613,2cyclictest2065605-21fschecks_count22:41:110
2649091150,3phc2sys0-21swapper/300:11:383
2649091150,1phc2sys0-21swapper/323:18:323
177632199151,5cyclictest0-21swapper/221:50:002
177632199151,5cyclictest0-21swapper/221:50:002
1776321991513,1cyclictest0-21swapper/222:46:182
1776321991512,1cyclictest0-21swapper/223:00:012
1776321991512,1cyclictest0-21swapper/222:31:152
1776321991512,1cyclictest0-21swapper/221:26:132
1776321991512,1cyclictest0-21swapper/221:21:122
1776321991512,1cyclictest0-21swapper/221:10:012
1776321991512,1cyclictest0-21swapper/220:45:002
1776321991512,1cyclictest0-21swapper/219:51:132
1776321991512,1cyclictest0-21swapper/219:45:012
1776321991511,2cyclictest0-21swapper/220:51:202
1776321991511,2cyclictest0-21swapper/220:31:142
177632099157,2cyclictest191rcu_preempt20:26:191
177632099155,5cyclictest0-21swapper/120:56:181
177632099153,7cyclictest2124837-21kworker/u16:0+nfsiod23:49:161
1776320991512,2cyclictest3851705-21mta-sts-daemon22:38:161
1776320991512,2cyclictest3851703-21mta-sts-daemon22:35:011
1776320991512,2cyclictest2228564-21kthreadcore00:31:171
1776320991512,2cyclictest2173605-21kthreadcore23:51:161
1776320991512,2cyclictest1929202-21sh21:10:001
1776320991512,2cyclictest1290-21dbus-daemon22:05:011
1776320991512,2cyclictest0-21swapper/122:45:011
177632099151,10cyclictest1989676-21ssh21:50:211
1776320991510,4cyclictest3851705-21mta-sts-daemon21:58:571
1776320991510,1cyclictest191rcu_preempt20:51:091
177631999159,5cyclictest1776317-21cyclictest00:06:010
177631999153,7cyclictest16-21ksoftirqd/000:31:240
177631999152,6cyclictest1827100-21cut19:46:170
177631999151,6cyclictest1817436-21grep19:41:150
1776319991512,2cyclictest2012621-21aten_repower_fr22:06:110
1776319991512,2cyclictest1776437-21sh19:10:010
177631999150,5cyclictest1791549-21apt-get19:21:110
2649091141,9phc2sys0-21swapper/323:09:183
2649091140,2phc2sys0-21swapper/322:12:063
2649091140,2phc2sys0-21swapper/300:23:503
2649091140,1phc2sys0-21swapper/319:29:593
2649091140,1phc2sys0-21swapper/319:17:293
1776321991412,1cyclictest0-21swapper/223:01:242
1776321991412,1cyclictest0-21swapper/222:45:012
1776321991412,1cyclictest0-21swapper/221:56:302
1776321991412,1cyclictest0-21swapper/220:06:172
1776321991412,1cyclictest0-21swapper/200:26:192
1776321991412,1cyclictest0-21swapper/200:10:022
1776321991411,2cyclictest0-21swapper/200:11:132
1776321991411,1cyclictest0-21swapper/223:46:572
1776321991411,1cyclictest0-21swapper/223:21:122
1776321991411,1cyclictest0-21swapper/222:11:212
1776321991411,1cyclictest0-21swapper/221:41:172
1776321991411,1cyclictest0-21swapper/221:36:232
1776321991411,1cyclictest0-21swapper/221:31:182
1776321991411,1cyclictest0-21swapper/221:01:152
1776321991411,1cyclictest0-21swapper/220:26:162
1776321991411,1cyclictest0-21swapper/220:21:212
1776321991411,1cyclictest0-21swapper/220:00:012
1776321991411,1cyclictest0-21swapper/219:36:142
1776321991411,1cyclictest0-21swapper/200:01:152
1776321991410,2cyclictest0-21swapper/219:23:122
1776320991411,2cyclictest3851705-21mta-sts-daemon20:06:151
1776320991411,2cyclictest3827634-1atopacctd19:21:191
1776320991411,2cyclictest2132845-21latency_hist23:25:021
1776320991411,2cyclictest2095797-21gltestperf23:01:151
1776320991411,2cyclictest1872264-21unixbench-2d20:21:231
1776320991411,2cyclictest1829174-21head19:51:101
1776320991411,2cyclictest1800026-21kthreadcore19:26:171
177632099140,7cyclictest1897311-21unixbench_multi20:41:221
177632099140,4cyclictest0-21swapper/100:20:091
177631999145,2cyclictest16-21ksoftirqd/020:11:170
2649091130,6phc2sys0-21swapper/321:31:093
2649091130,4phc2sys0-21swapper/323:00:463
2649091130,2phc2sys0-21swapper/323:36:443
2649091130,2phc2sys0-21swapper/322:19:413
2649091130,1phc2sys0-21swapper/320:11:353
2649091130,1phc2sys0-21swapper/319:09:523
1776321991311,1cyclictest0-21swapper/222:26:172
1776321991311,1cyclictest0-21swapper/220:56:172
1776321991310,1cyclictest0-21swapper/223:51:192
1776321991310,1cyclictest0-21swapper/223:41:152
1776321991310,1cyclictest0-21swapper/220:36:202
1776321991310,1cyclictest0-21swapper/219:31:152
177632099131,3cyclictest0-21swapper/100:00:531
1776320991310,2cyclictest1898684-21fschecks_time20:46:131
1776320991310,2cyclictest1841647-21aten_repower_po20:01:101
1776320991310,2cyclictest1823094-21cut19:46:111
1776320991310,2cyclictest1820301-21kthreadcore19:41:181
1776320991310,2cyclictest0-21swapper/122:10:191
2649091121,3phc2sys0-21swapper/320:56:153
2649091121,2phc2sys0-21swapper/300:26:113
2649091120,2phc2sys0-21swapper/323:59:013
2649091120,2phc2sys0-21swapper/323:24:503
2649091120,2phc2sys0-21swapper/321:37:403
2649091120,1phc2sys0-21swapper/321:47:393
2649091120,1phc2sys0-21swapper/321:47:393
2649091120,1phc2sys0-21swapper/319:32:363
177632199129,2cyclictest0-21swapper/223:30:282
177632099128,1cyclictest501rcuop/220:34:531
2649091110,2phc2sys0-21swapper/323:51:373
2649091110,2phc2sys0-21swapper/323:41:253
2649091110,2phc2sys0-21swapper/322:00:133
2649091110,2phc2sys0-21swapper/321:23:403
2649091110,2phc2sys0-21swapper/319:55:233
2649091110,2phc2sys0-21swapper/300:05:023
2649091110,1phc2sys0-21swapper/320:38:563
2649091110,1phc2sys0-21swapper/319:37:353
2649091110,1phc2sys0-21swapper/300:32:303
177632199119,1cyclictest0-21swapper/219:18:582
177632199119,1cyclictest0-21swapper/219:10:012
177632099114,5cyclictest1776362-21cut19:10:011
2649091102,2phc2sys0-21swapper/322:47:303
2649091101,4phc2sys0-21swapper/319:41:103
2649091101,3phc2sys0-21swapper/319:11:113
2649091101,2phc2sys0-21swapper/322:56:123
2649091101,2phc2sys0-21swapper/321:40:533
2649091100,4phc2sys0-21swapper/319:46:093
2649091100,3phc2sys0-21swapper/322:24:253
2649091100,2phc2sys0-21swapper/322:42:253
2649091100,2phc2sys0-21swapper/322:37:563
2649091100,2phc2sys0-21swapper/321:51:033
2649091100,2phc2sys0-21swapper/321:09:553
2649091100,2phc2sys0-21swapper/320:41:083
2649091100,2phc2sys0-21swapper/320:01:093
2649091100,2phc2sys0-21swapper/319:22:343
2649091100,1phc2sys0-21swapper/320:46:293
264909191,2phc2sys0-21swapper/320:26:143
264909190,3phc2sys0-21swapper/320:31:093
264909190,2phc2sys0-21swapper/323:10:553
264909190,2phc2sys0-21swapper/322:50:073
264909190,2phc2sys0-21swapper/322:05:063
264909190,2phc2sys0-21swapper/321:55:043
264909190,2phc2sys0-21swapper/321:01:123
264909190,2phc2sys0-21swapper/320:21:133
264909180,2phc2sys0-21swapper/320:05:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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