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2026-01-11 - 20:03
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackeslot6.osadl.org (updated Sun Jan 11, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
78143399110102,5cyclictest827986-21kworker/u8:0+flush-179:009:45:000
781437999586,7cyclictest266-21systemd-journal10:35:001
781433999487,4cyclictest795694-21true07:55:000
781433999487,4cyclictest795694-21true07:55:000
781433998979,7cyclictest818210-21latency_hist09:05:010
781437998877,8cyclictest886601-21latency_hist12:40:011
781437998780,4cyclictest781351-21kworker/u8:0+flush-179:007:15:001
781437998574,8cyclictest266-21systemd-journal07:55:011
781437998574,8cyclictest266-21systemd-journal07:55:001
781433998273,7cyclictest852885-21/usr/sbin/munin10:50:240
781437997463,8cyclictest808697-21kworker/u8:2+flush-179:009:25:181
781433997462,10cyclictest882078-21apt-get12:25:130
781433997364,7cyclictest836212-21latency_hist10:00:010
781433997364,7cyclictest836212-21latency_hist10:00:010
781433997362,9cyclictest839898-21/usr/sbin/munin10:10:230
781437997262,8cyclictest828132-21gpgv09:35:011
781437997262,8cyclictest828132-21gpgv09:35:011
781433997060,7cyclictest852645-21latency_hist10:50:020
781437996962,5cyclictest846264-21kworker/u8:4+flush-179:011:00:011
781437996559,4cyclictest857674-21kworker/u8:0+flush-179:011:05:251
781439996461,2cyclictest0-21swapper/211:18:592
781439996461,2cyclictest0-21swapper/211:18:582
781439996460,2cyclictest0-21swapper/212:17:592
781437996442,20cyclictest869088-21apt-get11:40:111
781433996459,4cyclictest846264-21kworker/u8:4+flush-179:010:40:260
781433996455,7cyclictest875432-21/usr/sbin/munin12:00:230
781433996453,9cyclictest826672-21apt-get09:30:110
781433996453,9cyclictest826672-21apt-get09:30:110
781437996357,5cyclictest781351-21kworker/u8:0+events_unbound07:35:001
781437996156,3cyclictest714-21Xorg08:45:591
781433996151,8cyclictest870449-21kworker/u8:1+flush-179:012:10:200
781433996151,8cyclictest870449-21kworker/u8:1+flush-179:012:10:190
781437996049,8cyclictest266-21systemd-journal07:40:001
781433996054,4cyclictest854075-21kworker/u8:2+events_unbound11:20:230
781433996054,4cyclictest803589-21kworker/u8:0+events_unbound08:25:000
781433995946,10cyclictest789513-21/usr/sbin/munin07:35:280
781433995851,5cyclictest846264-21kworker/u8:4+events_unbound11:00:020
781437995648,6cyclictest880489-21apt-get12:20:081
781437995648,6cyclictest829903-21kworker/u8:1+flush-179:010:20:011
78143799560,1cyclictest0-21swapper/107:25:001
781433995651,4cyclictest796696-21kworker/u8:0+flush-179:008:00:260
781433995548,5cyclictest870449-21kworker/u8:1+events_unbound12:25:010
781433995547,4cyclictest829903-21kworker/u8:1+flush-179:010:00:150
781433995547,4cyclictest829903-21kworker/u8:1+flush-179:010:00:140
781441995452,1cyclictest0-21swapper/310:22:593
781437995447,5cyclictest803589-21kworker/u8:0+flush-179:008:20:011
781437995432,5cyclictest792492-21latency_hist07:45:021
781433995447,6cyclictest813687-21kworker/u8:0+flush-179:009:10:170
781433995345,6cyclictest854075-21kworker/u8:2+flush-179:011:40:150
781437995246,4cyclictest829903-21kworker/u8:1+flush-179:009:40:201
781433995248,3cyclictest813687-21kworker/u8:0+flush-179:008:55:260
781433995244,6cyclictest854075-21kworker/u8:2+events_unbound11:15:240
781433995244,6cyclictest854075-21kworker/u8:2+events_unbound11:15:240
781433995243,7cyclictest824585-21apt-get09:25:000
781437995144,6cyclictest854075-21kworker/u8:2+flush-179:012:00:001
781437995046,3cyclictest803589-21kworker/u8:0+flush-179:008:30:271
781433995043,5cyclictest846264-21kworker/u8:4+flush-179:010:35:210
781433995043,5cyclictest797305-21kworker/u8:2+events_unbound08:05:250
4577091500,14ptp4l441ktimers/307:10:003
781437994939,8cyclictest828519-21apt-get09:35:111
781437994939,8cyclictest824573-21latency_hist09:25:011
781433994945,3cyclictest847652-21systemd-run10:34:590
781437994843,4cyclictest842510-21kworker/u8:0+flush-179:010:25:251
781433994842,4cyclictest810244-21latency_hist08:40:020
781433994840,7cyclictest784554-21kworker/u8:3+flush-179:008:15:210
781437994742,4cyclictest827986-21kworker/u8:0+flush-179:009:50:231
781437994740,5cyclictest864084-21kworker/u8:3+flush-179:011:40:001
781433994741,5cyclictest870449-21kworker/u8:1+events_unbound11:45:210
781433994741,5cyclictest784554-21kworker/u8:3+events_unbound07:40:250
781433994739,7cyclictest854075-21kworker/u8:2+flush-179:012:05:210
781433994738,7cyclictest776531-21kworker/u8:2+flush-179:007:25:220
781437994639,6cyclictest829903-21kworker/u8:1+events_unbound10:35:251
781437994626,19cyclictest808697-21kworker/u8:2+flush-179:008:50:161
781437994539,5cyclictest854075-21kworker/u8:2+events_unbound12:05:241
781433994539,5cyclictest829903-21kworker/u8:1+flush-179:010:55:240
781433994539,5cyclictest827986-21kworker/u8:0+flush-179:009:55:010
781433994539,4cyclictest854075-21kworker/u8:2+flush-179:011:05:220
781433994539,4cyclictest803589-21kworker/u8:0+flush-179:008:35:000
781437994433,9cyclictest849694-21cp10:40:011
781433994440,3cyclictest868841-21awk11:40:010
781433994439,4cyclictest838060-21kworker/u8:2+events_unbound10:15:240
231999440,4rtkit-daemon2318-21rtkit-daemon08:42:191
781437994338,3cyclictest810256-21perf08:40:001
781437994336,5cyclictest829903-21kworker/u8:1+events_unbound10:10:251
781433994336,5cyclictest829903-21kworker/u8:1+events_unbound10:10:010
78143399431,10cyclictest824585-21apt-get09:25:030
78143999420,40cyclictest0-21swapper/211:08:002
781437994237,4cyclictest859509-21kworker/u8:1+flush-179:011:20:161
781437994236,4cyclictest864032-21kworker/u8:0+events_unbound11:25:251
781437994236,4cyclictest0-21swapper/112:29:581
781433994235,5cyclictest874945-21kworker/u8:0+flush-179:012:20:000
781441994136,4cyclictest872011-21turbostat11:49:593
781439994137,2cyclictest0-21swapper/209:50:592
781437994135,5cyclictest813687-21kworker/u8:0+flush-179:008:55:141
781437994133,6cyclictest796696-21kworker/u8:0+flush-179:007:55:231
781437994133,6cyclictest266-21systemd-journal11:11:571
781437994132,8cyclictest817280-21fschecks_time09:00:171
781433994137,3cyclictest829857-21cron09:40:000
781433994136,4cyclictest781351-21kworker/u8:0+flush-179:007:50:010
781433994134,5cyclictest810666-21tr08:40:130
781433994134,5cyclictest781351-21kworker/u8:0+flush-179:007:10:260
78143399411,38cyclictest714-21Xorg07:24:590
781441994038,1cyclictest0-21swapper/311:18:593
781441994038,1cyclictest0-21swapper/311:18:593
781441994037,2cyclictest0-21swapper/312:17:593
781441994035,4cyclictest816607-21turbostat09:00:003
78144199400,5cyclictest784509-21turbostat07:20:003
78144199400,38cyclictest819804-21turbostat09:10:013
781439994037,2cyclictest0-21swapper/212:24:542
78143799400,38cyclictest852656-21apt10:50:001
781433994036,3cyclictest884991-21cron12:35:000
781433994033,5cyclictest784554-21kworker/u8:3+events_unbound08:00:000
781439993936,2cyclictest0-21swapper/210:09:552
78143999390,36cyclictest0-21swapper/211:22:002
78143999390,36cyclictest0-21swapper/209:05:592
781437993936,2cyclictest714-21Xorg12:15:591
781437993935,2cyclictest714-21Xorg10:25:001
781437993933,5cyclictest776531-21kworker/u8:2+flush-179:007:29:551
781437993933,4cyclictest829903-21kworker/u8:1+events_unbound09:45:251
781437993929,8cyclictest838315-21/usr/sbin/munin10:05:251
781433993929,8cyclictest800696-21apt-get08:10:110
78143399391,37cyclictest789291-21dump-pmu-power07:35:000
78143399390,37cyclictest714-21Xorg11:55:000
231999390,4rtkit-daemon2318-21rtkit-daemon09:12:441
231999390,4rtkit-daemon2318-21rtkit-daemon08:06:401
781441993836,1cyclictest0-21swapper/312:14:563
781441993836,1cyclictest0-21swapper/312:14:553
781441993833,4cyclictest800445-21turbostat08:10:003
781441993832,5cyclictest829860-21turbostat09:40:003
78144199380,4cyclictest795678-21turbostat07:54:593
78144199380,4cyclictest795678-21turbostat07:54:593
78144199380,37cyclictest828019-21turbostat09:35:013
78144199380,37cyclictest828019-21turbostat09:35:013
781437993825,12cyclictest784505-21ls07:20:001
781433993831,4cyclictest0-21swapper/011:26:590
78144199370,36cyclictest0-21swapper/310:54:553
781439993734,2cyclictest0-21swapper/211:45:012
781439993734,2cyclictest0-21swapper/210:12:002
781439993734,2cyclictest0-21swapper/208:33:592
781439993734,2cyclictest0-21swapper/207:29:552
78143999370,35cyclictest0-21swapper/212:28:582
78143999370,35cyclictest0-21swapper/208:37:592
78143999370,1cyclictest0-21swapper/209:49:552
781437993734,2cyclictest846264-21kworker/u8:4+events_unbound10:50:261
781437993729,4cyclictest836214-21apt-get10:00:011
781437993729,4cyclictest836214-21apt-get10:00:001
781437993728,8cyclictest798717-21unixbench-2d08:00:261
781433993734,2cyclictest714-21Xorg11:14:580
781433993733,2cyclictest714-21Xorg08:48:590
78143399373,31cyclictest885248-21apt-get12:35:130
78143399372,31cyclictest821635-21apt-get09:15:130
781441993634,1cyclictest0-21swapper/310:39:543
781441993634,1cyclictest0-21swapper/307:49:563
78144199360,35cyclictest792502-21turbostat07:45:003
78144199360,35cyclictest0-21swapper/311:56:003
78144199360,35cyclictest0-21swapper/311:53:003
78144199360,35cyclictest0-21swapper/308:46:593
78144199360,35cyclictest0-21swapper/307:56:593
78144199360,1cyclictest0-21swapper/311:11:593
78144199360,1cyclictest0-21swapper/307:34:543
781439993634,1cyclictest0-21swapper/207:39:592
781439993633,2cyclictest0-21swapper/210:22:582
781439993633,2cyclictest0-21swapper/210:03:592
781439993633,2cyclictest0-21swapper/210:03:592
781437993630,5cyclictest855840-21turbostat11:04:541
781437993628,7cyclictest878940-21fschecks_count12:10:131
781437993628,7cyclictest878940-21fschecks_count12:10:131
781437993628,7cyclictest861525-21gltestperf11:15:171
781437993628,7cyclictest861525-21gltestperf11:15:161
781437993628,6cyclictest870449-21kworker/u8:1+flush-179:012:00:231
781437993627,7cyclictest871048-21fschecks_time11:45:151
781433993632,3cyclictest844443-21/usr/sbin/munin10:25:010
781441993533,1cyclictest0-21swapper/311:29:543
781441993533,1cyclictest0-21swapper/308:20:593
781441993530,4cyclictest847625-21turbostat10:35:003
78144199350,34cyclictest0-21swapper/310:07:593
78144199350,34cyclictest0-21swapper/307:38:593
781439993533,1cyclictest0-21swapper/212:10:002
781439993532,2cyclictest0-21swapper/208:59:552
781437993530,4cyclictest873632-21latency_hist11:55:001
781437993529,4cyclictest836214-21apt-get10:00:031
781437993529,4cyclictest836214-21apt-get10:00:031
781433993530,4cyclictest776531-21kworker/u8:2+flush-179:007:15:290
781433993529,5cyclictest813687-21kworker/u8:0+flush-179:009:09:560
781433993529,4cyclictest813684-21apt-get08:50:130
781433993528,4cyclictest0-21swapper/011:57:580
781441993432,1cyclictest0-21swapper/310:17:583
781441993432,1cyclictest0-21swapper/309:45:593
781441993429,4cyclictest838081-21turbostat10:05:003
781441993429,4cyclictest838081-21turbostat10:04:593
781439993431,2cyclictest0-21swapper/207:21:582
781437993429,4cyclictest801876-21unixbench-2d08:10:241
781437993428,4cyclictest813687-21kworker/u8:0+events_unbound09:20:011
781437993426,7cyclictest884039-21fschecks_time12:30:151
781437993426,7cyclictest818904-21hwlatdetect09:05:171
78143799341,29cyclictest803648-21apt-get08:20:021
781441993331,1cyclictest0-21swapper/312:30:593
781439993331,1cyclictest0-21swapper/209:05:002
781439993330,2cyclictest0-21swapper/211:02:582
781439993330,2cyclictest0-21swapper/210:15:592
781439993330,2cyclictest0-21swapper/208:23:592
781437993324,7cyclictest806079-21fschecks_count08:25:181
78143799331,30cyclictest0-21swapper/107:45:131
781433993322,9cyclictest805736-21apt-get08:25:130
78143399331,29cyclictest0-21swapper/009:45:130
781441993230,1cyclictest0-21swapper/309:59:593
781441993230,1cyclictest0-21swapper/309:59:593
781441993230,1cyclictest0-21swapper/309:17:593
781441993227,4cyclictest831462-21turbostat09:45:003
781439993230,1cyclictest0-21swapper/208:44:592
781439993229,2cyclictest0-21swapper/208:11:592
781441993129,1cyclictest0-21swapper/311:01:593
781441993128,2cyclictest0-21swapper/311:31:593
781441993125,5cyclictest876785-21turbostat12:05:003
78144199310,29cyclictest0-21swapper/311:20:593
781439993129,1cyclictest0-21swapper/210:45:002
78143999310,29cyclictest0-21swapper/211:46:582
781441993028,1cyclictest0-21swapper/310:46:593
781441993028,1cyclictest0-21swapper/308:10:593
781441993026,3cyclictest824577-21turbostat09:29:553
781441993025,4cyclictest839667-21turbostat10:14:553
781441993025,4cyclictest811851-21turbostat08:45:003
78144199300,28cyclictest0-21swapper/308:35:143
781439993027,2cyclictest0-21swapper/211:30:112
781439993027,2cyclictest0-21swapper/209:30:132
781439993027,2cyclictest0-21swapper/209:30:132
78143999300,2cyclictest0-21swapper/209:25:012
78143999300,28cyclictest0-21swapper/207:30:142
781437993024,5cyclictest864032-21kworker/u8:0+events_unbound11:30:131
781433993027,2cyclictest0-21swapper/011:32:590
781441992928,1cyclictest0-21swapper/309:23:593
781441992927,1cyclictest0-21swapper/312:09:553
78144199290,28cyclictest0-21swapper/310:40:023
781439992926,2cyclictest0-21swapper/212:39:552
781439992926,2cyclictest0-21swapper/212:04:002
781439992926,2cyclictest0-21swapper/211:57:592
781439992926,2cyclictest0-21swapper/210:31:592
781439992926,2cyclictest0-21swapper/209:10:592
781439992926,2cyclictest0-21swapper/207:10:172
78143999290,28cyclictest0-21swapper/209:40:132
78143999290,27cyclictest0-21swapper/212:10:112
78143999290,27cyclictest0-21swapper/212:10:102
78143999290,27cyclictest0-21swapper/211:35:132
78143999290,27cyclictest0-21swapper/209:35:132
78143999290,27cyclictest0-21swapper/207:55:132
4577091290,7ptp4l61490irq/134-eno1-TxRx-011:45:003
4577091290,6ptp4l441ktimers/308:55:003
4577091290,6ptp4l441ktimers/308:30:003
4577091290,6ptp4l441ktimers/307:30:013
781441992826,1cyclictest0-21swapper/311:08:003
781441992826,1cyclictest0-21swapper/309:00:143
78144199280,27cyclictest0-21swapper/308:30:133
781439992825,2cyclictest0-21swapper/211:50:122
781439992825,2cyclictest0-21swapper/210:56:592
781439992825,2cyclictest0-21swapper/209:55:152
781439992825,2cyclictest0-21swapper/209:55:152
781439992825,2cyclictest0-21swapper/207:54:002
781439992825,2cyclictest0-21swapper/207:53:592
78143999280,26cyclictest0-21swapper/212:30:132
78143999280,26cyclictest0-21swapper/211:10:132
4577091280,6ptp4l441ktimers/312:24:553
4577091280,5ptp4l441ktimers/310:30:013
4577091280,5ptp4l441ktimers/307:25:013
781441992722,4cyclictest803647-21turbostat08:20:003
4577091270,7ptp4l441ktimers/311:00:003
4577091270,4ptp4l441ktimers/311:35:023
4577091270,4ptp4l441ktimers/309:55:013
4577091270,4ptp4l441ktimers/309:14:563
781439992623,2cyclictest0-21swapper/211:27:582
781439992623,2cyclictest0-21swapper/210:36:592
78143999260,24cyclictest0-21swapper/207:49:582
78143999260,24cyclictest0-21swapper/207:43:592
78143999260,24cyclictest0-21swapper/207:18:562
4577091260,4ptp4l61490irq/134-eno1-TxRx-008:05:023
4577091260,4ptp4l441ktimers/312:40:003
4577091260,4ptp4l441ktimers/307:14:553
78143999250,2cyclictest0-21swapper/208:47:592
781433992520,4cyclictest845538-21phc2sys-jitter10:25:240
4577091250,4ptp4l441ktimers/312:29:563
781439992422,1cyclictest0-21swapper/208:19:592
781439992421,2cyclictest0-21swapper/210:26:002
781439992420,2cyclictest0-21swapper/210:49:562
231999230,19rtkit-daemon2318-21rtkit-daemon07:05:460
781439992219,2cyclictest0-21swapper/210:53:002
781439992219,2cyclictest0-21swapper/208:06:002
781439992118,2cyclictest0-21swapper/209:22:582
781437992116,3cyclictest0-21swapper/107:10:011
781439992018,1cyclictest0-21swapper/208:04:592
781439991916,2cyclictest0-21swapper/208:53:592
781439991613,2cyclictest0-21swapper/208:26:592
781439991411,2cyclictest0-21swapper/209:18:592
7814399930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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