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2026-08-17 - 08:53
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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 all highest latencies:
System rackeslot2.osadl.org (updated Mon Aug 17, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
83629221550,2sleep30-21swapper/321:54:533
66443821000,2sleep10-21swapper/119:40:181
626638992717,2cyclictest69250irq/121-eno121:35:011
9157832260,1sleep0915786-21head22:45:200
626639992521,1cyclictest0-21swapper/220:20:022
626638992320,2cyclictest757575-21apt-key21:00:011
626637992311,7cyclictest0-21swapper/020:00:230
3240591231,7phc2sys0-21swapper/319:29:543
626637992219,2cyclictest726999-21dump-pmu-power20:35:010
626637992215,6cyclictest0-21swapper/021:55:030
626637992215,6cyclictest0-21swapper/021:25:010
3240591221,4phc2sys0-21swapper/319:59:563
626639992118,1cyclictest0-21swapper/219:40:012
626638992118,2cyclictest888678-21systemd22:30:021
626638992117,3cyclictest664-21dbus-daemon22:35:011
626637992116,3cyclictest0-21swapper/021:00:030
626637992116,2cyclictest739181-21idleruntime-cro20:45:000
626637992116,2cyclictest739181-21idleruntime-cro20:45:000
626637992115,2cyclictest17750irq/127-ahci[0000:00:17.0]23:55:000
626637992111,6cyclictest1044671-21df00:15:110
626637992111,5cyclictest0-21swapper/023:20:010
626637992110,7cyclictest930075-21cut22:55:200
626639992018,1cyclictest0-21swapper/223:35:022
626639992018,1cyclictest0-21swapper/221:15:022
626638992017,2cyclictest1-21systemd21:40:021
626638992016,3cyclictest730914-21kthreadcore20:35:171
626638992015,3cyclictest676-21mta-sts-daemon00:10:081
626637992014,2cyclictest0-21swapper/022:00:020
626637992014,2cyclictest0-21swapper/022:00:020
626637992012,7cyclictest0-21swapper/021:15:110
626637992011,5cyclictest0-21swapper/023:46:100
626637992011,5cyclictest0-21swapper/021:40:020
6348672190,2sleep30-21swapper/319:15:033
626639991916,1cyclictest0-21swapper/223:40:022
626639991916,1cyclictest0-21swapper/223:15:022
626638991916,2cyclictest635898-21systemd19:20:011
626638991916,2cyclictest1051297-21basename00:20:011
62663799198,6cyclictest0-21swapper/000:30:240
626637991916,2cyclictest0-21swapper/023:45:020
626637991916,2cyclictest0-21swapper/023:30:030
626637991912,6cyclictest0-21swapper/022:15:010
626637991910,5cyclictest0-21swapper/021:40:160
3240591190,2phc2sys0-21swapper/322:01:563
626639991816,1cyclictest0-21swapper/222:00:022
626639991816,1cyclictest0-21swapper/222:00:022
626639991815,2cyclictest0-21swapper/221:30:032
626639991815,1cyclictest0-21swapper/222:05:012
626639991815,1cyclictest0-21swapper/220:55:002
626639991815,1cyclictest0-21swapper/200:20:012
626639991815,1cyclictest0-21swapper/200:10:172
626639991815,1cyclictest0-21swapper/200:05:012
626638991815,2cyclictest957068-21kthreadcore23:15:171
626638991815,2cyclictest866388-21sh22:15:011
626638991815,2cyclictest664-21dbus-daemon23:00:021
626638991815,2cyclictest626776-21aten2.4-expect19:10:021
626638991815,2cyclictest0-21swapper/122:00:021
626638991815,2cyclictest0-21swapper/122:00:021
626638991813,3cyclictest981179-21kthreadcore23:30:191
62663799189,2cyclictest0-21swapper/023:31:510
62663799188,5cyclictest880608-21runrttasks22:24:040
62663799187,6cyclictest0-21swapper/000:05:050
62663799187,1cyclictest191rcu_preempt23:22:270
62663799185,4cyclictest0-21swapper/019:58:480
626637991812,3cyclictest171ktimers/022:09:530
626637991811,6cyclictest0-21swapper/000:14:540
1157598180,2rtkit-daemon0-21swapper/119:35:061
626639991714,1cyclictest0-21swapper/220:35:012
62663899175,5cyclictest491rcuog/223:44:001
626638991714,2cyclictest989619-21needreboot23:35:201
626638991714,2cyclictest849222-21ssh22:00:191
626638991714,2cyclictest838-21gmain20:55:011
626638991714,2cyclictest792208-21latency_hist21:25:011
626638991714,2cyclictest777293-21latency_hist21:15:011
626638991713,3cyclictest910561-21latency_hist22:45:011
626638991713,3cyclictest633959-21kthreadcore19:15:021
626638991713,3cyclictest1022395-21gltestperf00:00:151
626638991712,2cyclictest1307-21mta-sts-daemon00:36:471
62663799178,5cyclictest0-21swapper/022:55:010
62663799177,5cyclictest774025-21kthreadcore21:10:180
62663799176,6cyclictest0-21swapper/023:56:100
62663799172,5cyclictest491rcuog/200:39:540
626637991714,2cyclictest635845-21systemd19:20:010
626637991714,2cyclictest632979-21cut19:15:010
626637991714,2cyclictest0-21swapper/023:15:020
626637991714,2cyclictest0-21swapper/019:35:030
626637991712,4cyclictest716460-21kthreadcore20:25:160
626637991712,4cyclictest674175-21kthreadcore19:50:160
626637991711,5cyclictest769923-21diskmemload23:01:100
3240591171,4phc2sys0-21swapper/323:12:293
3240591170,2phc2sys0-21swapper/321:39:523
3240591170,2phc2sys0-21swapper/320:05:233
62663999161,9cyclictest0-21swapper/222:20:012
626639991614,1cyclictest0-21swapper/200:25:142
626639991613,1cyclictest0-21swapper/222:50:152
626639991613,1cyclictest0-21swapper/220:15:012
626639991613,1cyclictest0-21swapper/200:05:232
626638991614,1cyclictest0-21swapper/119:50:011
626638991613,2cyclictest969793-21sh23:25:011
626638991613,2cyclictest879041-21mailstats22:20:211
626638991613,2cyclictest851891-21sh22:05:081
626638991613,2cyclictest836365-21aten2.4-expect21:54:561
626638991613,2cyclictest745414-21grep20:50:011
626638991613,2cyclictest739370-21systemd-run20:45:021
626638991613,2cyclictest739370-21systemd-run20:45:021
626638991613,2cyclictest1064401-21head00:25:241
626638991613,2cyclictest1006252-21ssh23:49:181
626638991613,2cyclictest0-21swapper/123:05:021
626638991612,3cyclictest697851-21irqrtprio20:10:151
626638991610,5cyclictest1306-21mta-sts-daemon20:20:241
62663899160,4cyclictest1014037-21munin-run23:55:001
62663799166,5cyclictest0-21swapper/000:05:010
62663799163,11cyclictest884836-21cut22:25:190
62663799161,6cyclictest714821-21idleruntime-cro20:25:010
626637991613,2cyclictest897222-21irqrtprio22:35:150
626637991613,2cyclictest890994-21kthreadcore22:30:170
626637991613,2cyclictest844624-21tr22:00:110
626637991613,2cyclictest0-21swapper/023:10:010
626637991612,2cyclictest0-21swapper/021:30:010
626637991610,5cyclictest1052657-21irqcore00:20:160
62663799160,6cyclictest869511-21kthreadcore22:15:170
62663799160,1cyclictest69250irq/121-eno120:54:550
3240591160,3phc2sys0-21swapper/322:55:233
3240591160,2phc2sys0-21swapper/323:00:083
3240591160,2phc2sys0-21swapper/321:34:133
3240591160,2phc2sys0-21swapper/321:04:553
1157598160,5rtkit-daemon1306-21mta-sts-daemon23:57:551
626639991513,1cyclictest0-21swapper/223:05:022
626639991513,1cyclictest0-21swapper/223:00:032
626639991513,1cyclictest0-21swapper/222:50:012
626639991513,1cyclictest0-21swapper/222:40:122
626639991513,1cyclictest0-21swapper/221:40:202
626639991513,1cyclictest0-21swapper/221:40:032
626639991513,1cyclictest0-21swapper/221:20:202
626639991513,1cyclictest0-21swapper/220:45:002
626639991513,1cyclictest0-21swapper/220:45:002
626639991513,1cyclictest0-21swapper/219:15:022
626639991512,2cyclictest0-21swapper/221:15:172
626639991512,1cyclictest0-21swapper/223:50:392
626639991512,1cyclictest0-21swapper/223:21:432
626639991512,1cyclictest0-21swapper/223:15:132
626639991512,1cyclictest0-21swapper/222:30:242
626639991512,1cyclictest0-21swapper/222:20:232
626639991512,1cyclictest0-21swapper/222:05:232
626639991512,1cyclictest0-21swapper/219:50:162
626639991512,1cyclictest0-21swapper/219:50:012
626639991512,1cyclictest0-21swapper/219:25:002
626639991512,1cyclictest0-21swapper/200:30:242
626639991512,1cyclictest0-21swapper/200:20:212
626639991511,2cyclictest0-21swapper/219:40:152
626638991513,1cyclictest1307-21mta-sts-daemon00:06:301
626638991512,2cyclictest952983-21unixbench_singl23:10:251
626638991512,2cyclictest941368-21tr23:05:131
626638991512,2cyclictest866874-21cstates22:15:111
626638991512,2cyclictest759-1atopacctd19:50:101
626638991512,2cyclictest759-1atopacctd19:20:101
626638991512,2cyclictest681242-21kthreadcore19:55:171
626638991512,2cyclictest626635-21cyclictest20:35:021
626638991512,2cyclictest1307-21mta-sts-daemon19:25:181
626638991511,3cyclictest921587-21kthreadcore22:50:171
626638991511,3cyclictest823170-21irqrtprio21:45:151
626638991511,3cyclictest1309-21mta-sts-daemon21:26:091
626638991510,4cyclictest632786-21munin-node21:09:311
62663899150,4cyclictest1307-21mta-sts-daemon19:33:591
62663799151,9cyclictest708590-21apt-get20:19:550
626637991513,1cyclictest641807-21cron19:25:000
626637991512,2cyclictest989427-21kthreadcore23:35:190
626637991512,2cyclictest823256-21kthreadcore21:45:150
626637991512,2cyclictest763857-21systemd-run21:05:010
626637991512,2cyclictest742182-21kthreadcore20:45:180
626637991512,2cyclictest732198-21mailstats20:35:200
626637991512,2cyclictest667063-21gltestperf19:45:140
626637991512,2cyclictest664739-21kthreadcore19:40:180
626637991512,2cyclictest658944-21phc2sys19:35:170
626637991512,2cyclictest1060095-21irqrtprio00:25:160
626637991511,3cyclictest759-1atopacctd20:10:110
626637991511,3cyclictest693100-21kthreadcore20:05:160
62663799150,6cyclictest905064-21kthreadcore22:40:150
3240591155,2phc2sys0-21swapper/322:09:183
3240591150,4phc2sys0-21swapper/320:04:543
3240591150,3phc2sys0-21swapper/323:42:363
3240591150,2phc2sys0-21swapper/322:32:573
3240591150,2phc2sys0-21swapper/322:28:403
3240591150,2phc2sys0-21swapper/300:22:343
3240591150,1phc2sys0-21swapper/300:35:473
626639991412,1cyclictest0-21swapper/219:55:122
626639991412,1cyclictest0-21swapper/200:40:022
626639991411,2cyclictest0-21swapper/222:35:552
626639991411,1cyclictest0-21swapper/223:25:222
626639991411,1cyclictest0-21swapper/223:05:192
626639991411,1cyclictest0-21swapper/221:35:032
626639991411,1cyclictest0-21swapper/221:05:122
626639991411,1cyclictest0-21swapper/220:55:222
62663999140,9cyclictest997712-21taskset23:40:412
62663999140,12cyclictest0-21swapper/221:04:542
62663899149,4cyclictest690399-21cron20:05:011
62663899149,4cyclictest1052192-21fschecks_time00:20:141
62663899146,7cyclictest911188-21cstates22:45:111
626638991411,2cyclictest971072-21irqcore23:25:191
626638991411,2cyclictest778556-21irqcore21:15:151
626638991411,2cyclictest691586-21grep20:05:151
626638991411,2cyclictest0-21swapper/100:35:021
626638991410,3cyclictest758193-21cpuspeed_turbos21:00:121
626638991410,3cyclictest704112-21kthreadcore20:15:161
626637991411,2cyclictest803729-21kthreadcore21:30:190
626637991411,2cyclictest765826-21kthreadcore21:05:160
626637991411,2cyclictest646116-21kthreadcore19:25:190
3240591141,2phc2sys0-21swapper/323:33:383
3240591140,2phc2sys0-21swapper/323:55:223
3240591140,2phc2sys0-21swapper/323:26:463
3240591140,2phc2sys0-21swapper/323:09:413
3240591140,2phc2sys0-21swapper/322:39:043
3240591140,1phc2sys0-21swapper/322:22:483
1157598140,6rtkit-daemon1306-21mta-sts-daemon21:41:521
62663999139,2cyclictest0-21swapper/220:38:132
626639991311,1cyclictest0-21swapper/223:49:362
626639991311,1cyclictest0-21swapper/221:45:152
626639991311,1cyclictest0-21swapper/219:20:012
626639991310,1cyclictest0-21swapper/222:10:172
626639991310,1cyclictest0-21swapper/221:50:182
626639991310,1cyclictest0-21swapper/220:26:372
626639991310,1cyclictest0-21swapper/220:20:162
626639991310,1cyclictest0-21swapper/220:00:132
62663899139,3cyclictest899284-21kthreadcore22:35:171
626638991311,1cyclictest0-21swapper/120:30:011
3240591131,2phc2sys0-21swapper/321:24:563
3240591130,2phc2sys0-21swapper/323:52:383
3240591130,2phc2sys0-21swapper/322:45:253
3240591130,2phc2sys0-21swapper/320:30:013
62663999129,1cyclictest0-21swapper/219:10:012
62663999121,4cyclictest0-21swapper/222:30:012
626639991210,1cyclictest0-21swapper/223:55:232
626639991210,1cyclictest0-21swapper/220:45:152
626639991210,1cyclictest0-21swapper/220:05:132
626639991210,1cyclictest0-21swapper/219:30:192
626639991210,1cyclictest0-21swapper/219:25:172
62663799121,5cyclictest626481-21latency_hist19:10:020
3240591121,4phc2sys0-21swapper/320:34:543
3240591120,2phc2sys0-21swapper/300:34:033
3240591120,2phc2sys0-21swapper/300:18:363
3240591120,1phc2sys0-21swapper/321:25:403
3240591111,5phc2sys0-21swapper/319:49:543
3240591111,3phc2sys0-21swapper/323:36:353
3240591110,3phc2sys0-21swapper/319:24:563
3240591110,2phc2sys0-21swapper/323:45:043
3240591110,2phc2sys0-21swapper/323:18:273
3240591110,2phc2sys0-21swapper/320:13:503
3240591110,2phc2sys0-21swapper/319:40:133
3240591110,2phc2sys0-21swapper/319:14:533
3240591110,2phc2sys0-21swapper/319:05:193
3240591110,1phc2sys0-21swapper/322:54:423
3240591110,1phc2sys0-21swapper/320:55:143
3240591103,1phc2sys0-21swapper/319:35:203
3240591101,2phc2sys0-21swapper/323:21:243
3240591101,2phc2sys0-21swapper/300:25:133
3240591100,2phc2sys0-21swapper/322:41:003
3240591100,2phc2sys0-21swapper/322:15:153
3240591100,2phc2sys0-21swapper/321:46:253
3240591100,2phc2sys0-21swapper/321:40:163
3240591100,2phc2sys0-21swapper/321:17:553
3240591100,2phc2sys0-21swapper/321:10:173
3240591100,2phc2sys0-21swapper/320:45:173
3240591100,2phc2sys0-21swapper/320:44:243
3240591100,2phc2sys0-21swapper/320:44:243
3240591100,2phc2sys0-21swapper/320:15:153
3240591100,2phc2sys0-21swapper/300:15:033
3240591100,2phc2sys0-21swapper/300:08:133
3240591100,2phc2sys0-21swapper/300:00:273
324059191,2phc2sys0-21swapper/321:56:473
324059191,2phc2sys0-21swapper/321:56:473
324059190,2phc2sys0-21swapper/322:10:063
324059190,2phc2sys0-21swapper/321:05:163
324059190,2phc2sys0-21swapper/320:35:113
324059190,2phc2sys0-21swapper/320:20:163
324059190,2phc2sys0-21swapper/319:50:113
324059180,2phc2sys0-21swapper/320:50:063
324059180,2phc2sys0-21swapper/319:30:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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