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2026-05-12 - 12:53
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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 rackeslot2.osadl.org (updated Tue May 12, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81199021590,1sleep0191rcu_preempt23:00:250
88265321000,2sleep1882654-21apt23:50:001
6422452470,1sleep1642246-21grep21:10:231
8844332390,2sleep30-21swapper/323:50:183
5646382380,5sleep1564643-21kthreadcore20:10:201
5646382380,5sleep1564643-21kthreadcore20:10:201
484397992825,2cyclictest936609-21dump-pmu-power00:25:000
484398992619,3cyclictest707636-21cstates21:55:141
484398992512,3cyclictest0-21swapper/100:30:131
484397992520,1cyclictest7374071systemd-run22:15:010
484397992514,6cyclictest0-21swapper/022:55:010
484398992421,2cyclictest506632-21grep19:25:181
484398992413,6cyclictest0-21swapper/121:25:021
484397992415,3cyclictest3827634-1atopacctd21:33:510
484398992320,2cyclictest852043-21sh23:30:001
484398992318,1cyclictest191rcu_preempt23:03:371
484397992312,2cyclictest511841-21systemd-run19:30:010
484398992219,2cyclictest775929-21munin-run22:40:011
484398992219,2cyclictest0-21swapper/122:35:011
484398992215,2cyclictest1996-21runrttasks23:13:111
484398992213,3cyclictest0-21swapper/121:55:021
484398992211,6cyclictest0-21swapper/123:45:001
48439799227,10cyclictest684323-21munin-run21:40:020
484397992217,4cyclictest581760-21sort20:25:160
484397992214,7cyclictest0-21swapper/021:10:020
484397992210,5cyclictest823088-21irqrtprio23:10:180
484398992118,2cyclictest558736-21kthreadcore20:05:201
484398992117,3cyclictest927111-21timerandwakeup00:15:251
484398992110,6cyclictest0-21swapper/121:39:581
484397992118,2cyclictest484244-21latency_hist19:10:010
484397992116,4cyclictest910553-21kthreadcore00:05:220
484399992018,1cyclictest0-21swapper/219:15:012
484399992017,1cyclictest0-21swapper/223:05:012
48439899209,6cyclictest0-21swapper/121:47:371
484398992017,2cyclictest892192-21grep23:55:181
484398992017,2cyclictest791192-21munin-plugin-st22:50:011
484398992017,2cyclictest739068-21kthreadcore22:15:181
484398992017,2cyclictest687435-21kthreadcore21:40:211
484398992017,2cyclictest637771-21grep21:10:011
484398992017,2cyclictest0-21swapper/122:05:011
48439799207,6cyclictest687669-21kthreadcore21:40:220
484397992017,2cyclictest484395-21cyclictest19:55:020
484397992012,7cyclictest3851705-21mta-sts-daemon00:18:000
484397992010,6cyclictest638370-21/usr/sbin/munin21:10:290
484397992010,6cyclictest600238-21/usr/sbin/munin20:40:140
484397992010,6cyclictest0-21swapper/023:35:000
484397992010,5cyclictest0-21swapper/022:35:210
484397992010,5cyclictest0-21swapper/000:25:200
484397992010,4cyclictest0-21swapper/023:50:130
2649091204,2phc2sys0-21swapper/322:45:023
484399991917,1cyclictest0-21swapper/219:55:022
484399991916,1cyclictest0-21swapper/223:55:012
484399991916,1cyclictest0-21swapper/223:25:012
484399991916,1cyclictest0-21swapper/222:30:152
484399991916,1cyclictest0-21swapper/200:30:012
484399991913,3cyclictest0-21swapper/222:10:132
48439999190,10cyclictest0-21swapper/223:40:002
48439899199,3cyclictest0-21swapper/100:25:141
48439899197,2cyclictest134050irq/121-eno121:15:211
484398991916,2cyclictest836936-21sh23:20:021
484398991916,2cyclictest490989-21latency_hist19:15:011
484398991915,3cyclictest909401-21kthreadcore00:05:211
484398991911,3cyclictest0-21swapper/122:10:201
484398991911,3cyclictest0-21swapper/100:35:261
484398991910,2cyclictest484395-21cyclictest20:50:011
48439799195,2cyclictest191rcu_preempt23:20:180
484397991916,2cyclictest861540-21kernelversion23:35:170
484397991916,2cyclictest729926-21sh22:10:020
484397991916,2cyclictest568923-21fschecks_count20:15:180
484397991916,2cyclictest568008-21latency_hist20:15:000
484397991916,2cyclictest568008-21latency_hist20:15:000
484397991916,2cyclictest491061-21cut19:15:010
484397991915,2cyclictest0-21swapper/000:05:000
484397991911,7cyclictest955752-21kthreadcore00:35:200
484397991910,5cyclictest0-21swapper/023:45:010
484397991910,4cyclictest814101-21kworker/u16:0-rpciod23:55:140
484397991910,2cyclictest653820-21systemd-run21:20:020
48439799190,5cyclictest881969-21ssh23:48:020
48439799190,15cyclictest0-21swapper/000:35:000
2649091190,2phc2sys0-21swapper/300:37:583
5958752180,3sleep0595880-21kthreadcore20:35:190
484399991815,1cyclictest0-21swapper/222:20:002
484399991814,2cyclictest707092-21taskset21:55:022
48439899187,6cyclictest813939-21kworker/1:1+events_freezable23:40:011
48439899187,6cyclictest0-21swapper/122:50:101
48439899187,3cyclictest827636-21kworker/u16:2-rpciod00:14:381
48439899185,5cyclictest814340-21aten_repower_en23:05:121
484398991816,1cyclictest530541-21cut19:45:011
484398991815,2cyclictest799102-21aten_repower_cu22:55:121
484398991815,2cyclictest799102-21aten_repower_cu22:55:121
484398991815,2cyclictest752995-21aten_repower_fr22:25:151
484398991815,2cyclictest671251-21kthreadcore21:30:201
484398991815,2cyclictest617571-21kthreadcore20:50:211
484398991815,2cyclictest581812-21gltestperf20:25:161
484398991815,2cyclictest524378-21munin-plugin-st19:40:011
484398991815,2cyclictest484395-21cyclictest20:00:201
484398991815,2cyclictest1290-21dbus-daemon20:45:011
484398991815,2cyclictest1290-21dbus-daemon20:25:011
48439799189,7cyclictest0-21swapper/022:45:110
48439799189,4cyclictest0-21swapper/000:10:180
48439799187,7cyclictest776982-21grep22:40:160
48439799186,3cyclictest684317-21kworker/u16:1+xprtiod21:49:500
48439799181,7cyclictest829502-21/usr/sbin/munin23:15:240
484397991815,2cyclictest755848-21kthreadcore22:25:220
484397991815,2cyclictest662309-21gltestperf21:25:160
484397991815,2cyclictest505563-21systemd-run19:25:010
484397991815,2cyclictest0-21swapper/023:30:020
484397991814,3cyclictest743465-21sh22:15:510
484397991811,6cyclictest708387-21irqrtprio21:55:180
484397991811,6cyclictest3851702-21mta-sts-daemon19:15:160
48439799180,9cyclictest718193-21tr22:00:210
2649091180,2phc2sys0-21swapper/322:47:473
2649091180,2phc2sys0-21swapper/300:11:553
48439999172,11cyclictest0-21swapper/200:05:132
484399991714,1cyclictest0-21swapper/223:45:182
484399991714,1cyclictest0-21swapper/222:55:142
484399991714,1cyclictest0-21swapper/222:55:142
484399991714,1cyclictest0-21swapper/222:35:182
484399991714,1cyclictest0-21swapper/221:20:012
484399991714,1cyclictest0-21swapper/200:20:002
484399991714,1cyclictest0-21swapper/200:05:012
484399991713,2cyclictest0-21swapper/221:10:122
484399991713,1cyclictest0-21swapper/222:27:582
48439899179,3cyclictest0-21swapper/119:48:371
48439899178,5cyclictest1996-21runrttasks22:24:401
48439899178,5cyclictest0-21swapper/119:34:361
48439899177,2cyclictest568370-21aten_repower_cu20:15:141
484398991714,2cyclictest783645-21sh22:45:011
484398991714,2cyclictest0-21swapper/119:20:001
484398991713,3cyclictest593736-21latency_hist20:35:011
484398991713,2cyclictest891024-21latency_hist23:55:021
48439799178,3cyclictest3851702-21mta-sts-daemon22:55:390
48439799178,3cyclictest3851702-21mta-sts-daemon22:55:390
48439799176,2cyclictest383433398rtkit-daemon22:20:440
48439799175,4cyclictest0-21swapper/023:10:000
48439799173,3cyclictest16-21ksoftirqd/019:55:150
484397991714,2cyclictest530476-21munin-plugin-st19:45:020
484397991714,2cyclictest521103-21kthreadcore19:35:190
484397991711,5cyclictest530922-21aten2.4-expect19:45:130
484397991711,5cyclictest3851705-21mta-sts-daemon20:50:200
48439799170,8cyclictest768274-21awk22:35:010
48439799170,3cyclictest608069-21grep20:45:190
2649091170,2phc2sys0-21swapper/323:33:593
2649091170,2phc2sys0-21swapper/321:33:193
2649091170,2phc2sys0-21swapper/300:06:353
48439999161,9cyclictest0-21swapper/223:10:132
48439999161,9cyclictest0-21swapper/220:00:002
484399991614,1cyclictest0-21swapper/223:20:012
484399991614,1cyclictest0-21swapper/221:40:012
484399991613,1cyclictest0-21swapper/222:50:182
484399991613,1cyclictest0-21swapper/221:25:122
484399991613,1cyclictest0-21swapper/220:45:192
484399991613,1cyclictest0-21swapper/220:20:002
484399991613,1cyclictest0-21swapper/200:10:202
484399991612,2cyclictest0-21swapper/200:39:262
484399991612,2cyclictest0-21swapper/200:30:262
48439999160,10cyclictest0-21swapper/223:10:002
48439899168,2cyclictest530508-21kworker/1:2+events_freezable20:55:201
48439899161,5cyclictest725635-21kthreadcore22:05:191
484398991613,2cyclictest838460-21irqrtprio23:20:161
484398991613,2cyclictest664534-21kthreadcore21:25:201
484398991613,2cyclictest3851702-21mta-sts-daemon19:50:231
48439799165,10cyclictest16-21ksoftirqd/021:54:110
48439799161,5cyclictest0-21swapper/021:20:120
484397991613,2cyclictest3824500-21cron20:05:000
2649091160,2phc2sys0-21swapper/322:30:463
2649091160,2phc2sys0-21swapper/320:20:133
48439999151,8cyclictest0-21swapper/221:00:002
484399991513,1cyclictest0-21swapper/223:45:012
484399991512,1cyclictest0-21swapper/223:25:272
484399991512,1cyclictest0-21swapper/222:42:322
484399991512,1cyclictest0-21swapper/221:40:252
484399991512,1cyclictest0-21swapper/221:00:162
484399991512,1cyclictest0-21swapper/220:35:002
484399991512,1cyclictest0-21swapper/220:15:002
484399991512,1cyclictest0-21swapper/220:15:002
484399991512,1cyclictest0-21swapper/220:05:002
484399991512,1cyclictest0-21swapper/219:35:022
48439899155,3cyclictest0-21swapper/123:30:381
48439899151,4cyclictest929310-21/usr/sbin/munin00:20:271
484398991512,2cyclictest898820-21/usr/sbin/munin00:00:201
484398991512,2cyclictest543828-21fschecks_count19:55:161
484398991512,2cyclictest3827634-1atopacctd21:00:131
484398991511,3cyclictest596850-21kthreadcore20:35:201
48439799152,4cyclictest555954-21aten_repower_po20:05:130
484397991512,2cyclictest0-21swapper/020:30:140
484397991511,1cyclictest191rcu_preempt20:23:120
2649091150,4phc2sys0-21swapper/322:05:133
2649091150,2phc2sys0-21swapper/321:45:333
2649091150,2phc2sys0-21swapper/300:34:013
2649091150,2phc2sys0-21swapper/300:01:503
2649091150,1phc2sys0-21swapper/319:20:223
48439999149,2cyclictest0-21swapper/220:25:232
484399991412,1cyclictest0-21swapper/222:20:182
484399991412,1cyclictest0-21swapper/222:00:142
484399991412,1cyclictest0-21swapper/222:00:012
484399991412,1cyclictest0-21swapper/219:45:022
484399991411,1cyclictest0-21swapper/222:45:182
484399991411,1cyclictest0-21swapper/221:47:062
484399991411,1cyclictest0-21swapper/221:05:142
484399991411,1cyclictest0-21swapper/220:40:002
484399991411,1cyclictest0-21swapper/219:27:102
484399991411,1cyclictest0-21swapper/219:20:232
484398991411,2cyclictest502392-21kthreadcore19:20:191
48439799143,6cyclictest626093-21df_inode21:00:160
484397991412,1cyclictest620986-21kthreadcore20:55:190
484397991411,2cyclictest484395-21cyclictest19:30:200
2649091140,3phc2sys0-21swapper/322:25:253
2649091140,2phc2sys0-21swapper/322:53:053
2649091140,2phc2sys0-21swapper/321:58:213
2649091140,2phc2sys0-21swapper/321:40:503
2649091140,2phc2sys0-21swapper/319:55:253
2649091140,2phc2sys0-21swapper/300:29:203
2649091140,1phc2sys0-21swapper/320:45:583
2649091140,1phc2sys0-21swapper/320:00:243
48439999139,2cyclictest0-21swapper/223:30:082
484399991311,1cyclictest0-21swapper/221:31:162
484399991311,1cyclictest0-21swapper/220:40:252
484399991310,1cyclictest0-21swapper/222:05:152
484399991310,1cyclictest0-21swapper/221:20:272
484399991310,1cyclictest0-21swapper/220:20:162
484399991310,1cyclictest0-21swapper/220:05:172
484399991310,1cyclictest0-21swapper/219:20:022
484399991310,1cyclictest0-21swapper/200:21:232
48439899131,3cyclictest484244-21latency_hist19:10:021
2649091132,2phc2sys0-21swapper/319:48:263
2649091131,9phc2sys873875-21taskset23:41:333
2649091130,3phc2sys0-21swapper/319:15:243
2649091130,2phc2sys0-21swapper/323:56:293
2649091130,2phc2sys0-21swapper/323:36:243
2649091130,2phc2sys0-21swapper/323:28:153
2649091130,2phc2sys0-21swapper/322:37:533
2649091130,2phc2sys0-21swapper/322:11:003
2649091130,2phc2sys0-21swapper/322:01:053
2649091130,2phc2sys0-21swapper/321:20:323
2649091130,2phc2sys0-21swapper/319:50:233
2649091130,2phc2sys0-21swapper/319:29:563
2649091130,2phc2sys0-21swapper/300:21:433
2649091130,1phc2sys0-21swapper/323:19:413
2649091130,1phc2sys0-21swapper/319:44:383
48439999129,2cyclictest0-21swapper/220:50:232
484399991210,1cyclictest0-21swapper/223:55:212
484399991210,1cyclictest0-21swapper/219:45:202
484399991210,1cyclictest0-21swapper/219:35:202
2649091123,2phc2sys0-21swapper/321:00:123
2649091120,3phc2sys0-21swapper/319:10:123
2649091120,2phc2sys0-21swapper/323:11:523
2649091120,2phc2sys0-21swapper/323:01:503
2649091120,2phc2sys0-21swapper/321:18:163
2649091120,2phc2sys0-21swapper/321:07:093
2649091120,2phc2sys0-21swapper/320:51:073
2649091120,2phc2sys0-21swapper/320:35:123
2649091120,2phc2sys0-21swapper/320:19:013
8062752110,2sleep30-21swapper/323:00:003
8062752110,2sleep30-21swapper/323:00:003
48439999118,2cyclictest0-21swapper/219:10:022
2649091111,4phc2sys0-21swapper/321:25:123
2649091111,2phc2sys0-21swapper/319:40:023
2649091111,2phc2sys0-21swapper/300:15:243
2649091110,2phc2sys0-21swapper/322:22:273
2649091110,2phc2sys0-21swapper/321:55:023
2649091110,2phc2sys0-21swapper/320:55:383
2649091110,2phc2sys0-21swapper/320:40:213
2649091110,2phc2sys0-21swapper/320:33:193
2649091102,2phc2sys0-21swapper/322:16:283
2649091102,2phc2sys0-21swapper/321:35:113
2649091101,2phc2sys0-21swapper/321:10:503
2649091100,2phc2sys0-21swapper/323:46:023
2649091100,2phc2sys0-21swapper/323:20:333
2649091100,2phc2sys0-21swapper/323:05:223
264909191,2phc2sys0-21swapper/319:05:153
264909190,2phc2sys0-21swapper/320:25:273
264909190,2phc2sys0-21swapper/320:10:593
264909190,2phc2sys0-21swapper/320:10:593
264909190,2phc2sys0-21swapper/319:30:203
264909190,1phc2sys0-21swapper/320:05:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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