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2026-05-14 - 09:27
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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 Thu May 14, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27923121220,2sleep20-21swapper/221:00:232
5456202740,1sleep0545618-21ssh00:00:060
133046992720,6cyclictest558505-21rt-features00:05:190
133046992514,7cyclictest3851875-21systemd-journal21:40:000
133047992415,5cyclictest0-21swapper/121:30:011
133046992416,7cyclictest0-21swapper/020:20:000
2649091221,2phc2sys0-21swapper/322:25:153
133048992219,1cyclictest0-21swapper/222:00:002
13304899213,8cyclictest0-21swapper/223:50:022
133048992118,1cyclictest0-21swapper/200:20:002
13304699219,4cyclictest3851875-21systemd-journal19:55:000
13304699213,5cyclictest493044-21cut23:25:130
133046992115,1cyclictest383433398rtkit-daemon21:53:030
133046992114,2cyclictest17350irq/127-ahci[0000:00:17.0]22:35:000
133046992114,2cyclictest17350irq/127-ahci[0000:00:17.0]22:35:000
133046992113,7cyclictest339809-21/usr/sbin/munin21:45:200
133046992112,5cyclictest0-21swapper/023:30:160
2649091201,2phc2sys0-21swapper/322:00:023
133048992018,1cyclictest0-21swapper/221:25:002
133048992017,1cyclictest0-21swapper/223:30:012
13304799209,3cyclictest0-21swapper/121:59:401
13304799209,3cyclictest0-21swapper/121:13:401
13304799209,2cyclictest383433398rtkit-daemon20:02:551
133047992017,2cyclictest530232-21latency_hist23:50:031
133047992017,2cyclictest421167-21mailstats22:35:211
133047992017,2cyclictest324297-21systemd-run21:35:001
133047992011,1cyclictest134050irq/121-eno122:40:221
133046992013,6cyclictest3851702-21mta-sts-daemon22:00:170
133046992013,2cyclictest437664-21ssh22:48:090
133046992012,7cyclictest0-21swapper/021:20:010
133046992012,1cyclictest383433398rtkit-daemon23:55:080
2649091190,2phc2sys0-21swapper/300:12:413
133047991916,2cyclictest413369-21head22:30:191
133047991916,2cyclictest413369-21head22:30:191
133047991916,2cyclictest385257-21/usr/sbin/munin22:15:011
133047991916,2cyclictest377511-21idleruntime-cro22:10:001
133047991916,2cyclictest133044-21cyclictest21:45:011
133047991914,3cyclictest548377-21kthreadcore00:00:151
13304699195,9cyclictest229671-21aten2.4-expect20:25:100
133046991916,2cyclictest462242-21gltestperf23:05:130
133046991916,2cyclictest461167-21basename23:05:000
133046991916,2cyclictest287468-21tr21:10:160
133046991916,2cyclictest0-21swapper/000:35:010
133046991914,1cyclictest191rcu_preempt00:27:520
133046991914,1cyclictest134050irq/121-eno119:55:100
133046991912,6cyclictest0-21swapper/022:55:160
133046991910,5cyclictest0-21swapper/021:35:000
13304699190,5cyclictest520892-21ssh23:41:220
2649091180,2phc2sys0-21swapper/323:47:483
2649091180,2phc2sys0-21swapper/323:33:573
2649091180,2phc2sys0-21swapper/300:22:513
133048991816,1cyclictest0-21swapper/219:15:012
133048991816,1cyclictest0-21swapper/219:15:012
133048991815,1cyclictest0-21swapper/200:40:002
133048991814,2cyclictest0-21swapper/223:30:212
133048991813,1cyclictest0-21swapper/219:50:002
13304799181,8cyclictest0-21swapper/100:26:011
133047991815,2cyclictest3827634-1atopacctd22:15:131
133047991815,2cyclictest3827634-1atopacctd22:15:121
133047991815,2cyclictest139359-21if_err_enp1s0.819:15:011
133047991815,2cyclictest139359-21if_err_enp1s0.819:15:011
133047991810,1cyclictest134050irq/121-eno122:20:491
13304699189,2cyclictest1326-21systemd-logind19:35:000
13304699189,2cyclictest1326-21systemd-logind19:35:000
13304699188,5cyclictest0-21swapper/000:20:080
13304699187,7cyclictest3851702-21mta-sts-daemon00:19:100
13304699187,7cyclictest3834332-21rtkit-daemon21:05:000
13304699187,7cyclictest180822-21kthreadcore19:45:160
13304699186,6cyclictest479876-21grep23:15:170
13304699182,3cyclictest310728-21kthreadcore21:25:150
133046991815,2cyclictest140201-21kthreadcore19:15:030
133046991815,2cyclictest0-21swapper/022:20:010
133046991815,2cyclictest0-21swapper/022:20:010
133046991815,2cyclictest0-21swapper/021:10:010
133046991814,3cyclictest169877-21kthreadcore19:35:170
133046991812,5cyclictest3851703-21mta-sts-daemon23:45:380
133046991810,2cyclictest1996-21runrttasks21:23:000
13304699180,2cyclictest430069-21ssh22:43:010
2649091170,2phc2sys0-21swapper/323:29:403
133048991715,1cyclictest0-21swapper/221:40:152
133048991715,1cyclictest0-21swapper/219:40:152
133048991714,1cyclictest0-21swapper/223:55:012
133048991714,1cyclictest0-21swapper/223:40:122
133048991714,1cyclictest0-21swapper/222:50:002
133048991714,1cyclictest0-21swapper/222:40:002
133048991714,1cyclictest0-21swapper/221:15:232
133048991713,2cyclictest0-21swapper/222:28:452
13304799177,2cyclictest134050irq/121-eno122:45:411
133047991715,1cyclictest0-21swapper/120:55:021
133047991715,1cyclictest0-21swapper/120:55:021
133047991714,2cyclictest504830-21wc23:30:191
133047991714,2cyclictest476515-21latency_hist23:15:021
133047991714,2cyclictest454588-21gltestperf23:00:131
133047991714,2cyclictest348552-21irqrtprio21:50:141
133047991714,2cyclictest325459-21if_enp1s021:35:121
133047991714,2cyclictest154270-21systemd-run19:25:001
133047991714,2cyclictest0-21swapper/123:55:011
133047991712,3cyclictest563817-21kthreadcore00:10:161
13304699179,7cyclictest0-21swapper/023:35:110
13304699178,5cyclictest0-21swapper/023:51:580
13304699176,7cyclictest335368-21kthreadcore21:40:160
13304699176,7cyclictest241779-21dump-pmu-power20:35:000
13304699175,7cyclictest3834332-21rtkit-daemon20:47:150
13304699174,6cyclictest4149531-21kworker/u16:0+xprtiod23:20:070
133046991714,2cyclictest472000-21kthreadcore23:10:170
133046991714,2cyclictest394362-21kthreadcore22:20:150
133046991714,2cyclictest251217-21kthreadcore20:40:180
133046991714,2cyclictest155806-21kthreadcore19:25:160
133046991714,2cyclictest149499-21kthreadcore19:20:170
133046991714,2cyclictest134589-21kthreadcore19:10:170
133046991714,2cyclictest134589-21kthreadcore19:10:160
133046991710,6cyclictest260974-21aten2.4-expect20:50:090
133046991710,6cyclictest260974-21aten2.4-expect20:50:090
133046991710,6cyclictest0-21swapper/022:50:210
133046991710,4cyclictest378372-21ssh22:10:100
13304699170,5cyclictest376525-21ssh22:07:130
2649091160,4phc2sys0-21swapper/322:49:113
2649091160,2phc2sys0-21swapper/323:05:353
2649091160,2phc2sys0-21swapper/322:04:553
2649091160,2phc2sys0-21swapper/300:38:223
13304899161,7cyclictest0-21swapper/221:40:012
13304899161,5cyclictest0-21swapper/223:10:012
133048991614,1cyclictest0-21swapper/200:35:012
133048991613,1cyclictest0-21swapper/223:37:022
133048991613,1cyclictest0-21swapper/223:05:002
133048991613,1cyclictest0-21swapper/221:48:242
133048991613,1cyclictest0-21swapper/220:20:212
133048991613,1cyclictest0-21swapper/220:05:172
133048991613,1cyclictest0-21swapper/200:28:482
13304799168,1cyclictest1109-21hwrng22:54:161
13304799167,2cyclictest134050irq/121-eno122:25:081
13304799166,2cyclictest0-21swapper/119:38:401
13304799161,9cyclictest1290-21dbus-daemon19:35:001
13304799161,9cyclictest1290-21dbus-daemon19:35:001
133047991614,1cyclictest286048-21/usr/sbin/munin21:10:001
133047991614,1cyclictest235509-21apt20:30:001
133047991613,2cyclictest581135-21grep00:20:181
133047991613,2cyclictest569298-21if_enp1s000:15:121
133047991613,2cyclictest507592-21tr23:35:111
133047991613,2cyclictest492770-21sed23:25:141
133047991613,2cyclictest489771-21grep23:20:231
133047991613,2cyclictest451923-21grep22:55:241
133047991613,2cyclictest295048-21irqrtprio21:15:161
133047991613,2cyclictest279785-21sh21:05:001
133047991613,2cyclictest215701-21head20:10:181
133047991613,2cyclictest210433-21latency_hist20:10:001
133047991611,3cyclictest468788-21latency_hist23:10:001
133047991611,2cyclictest3851704-21mta-sts-daemon21:24:171
13304699169,5cyclictest3851875-21systemd-journal20:08:400
13304699168,4cyclictest225763-21kthreadcore20:20:150
13304699168,4cyclictest134050irq/121-eno120:35:100
13304699167,5cyclictest0-21swapper/022:25:150
13304699165,7cyclictest0-21swapper/000:10:070
133046991613,2cyclictest418810-21kthreadcore22:35:170
133046991613,2cyclictest355311-21cpuspeed_turbos21:55:100
133046991613,2cyclictest267679-21cpuspeed_turbos20:55:100
133046991613,2cyclictest0-21swapper/000:35:110
2649091151,4phc2sys0-21swapper/323:15:093
2649091150,2phc2sys0-21swapper/300:10:003
2649091150,1phc2sys0-21swapper/321:28:023
133048991513,1cyclictest0-21swapper/221:25:212
13304899151,2cyclictest0-21swapper/219:35:092
133048991512,1cyclictest0-21swapper/223:10:162
133048991512,1cyclictest0-21swapper/222:45:002
133048991512,1cyclictest0-21swapper/221:05:122
133048991512,1cyclictest0-21swapper/220:00:022
133048991512,1cyclictest0-21swapper/219:30:002
133048991512,1cyclictest0-21swapper/200:10:152
133048991511,2cyclictest0-21swapper/223:15:152
133048991511,2cyclictest0-21swapper/222:16:582
133048991511,2cyclictest0-21swapper/222:16:582
133048991511,2cyclictest0-21swapper/221:32:132
133048991511,2cyclictest0-21swapper/220:55:162
133048991511,2cyclictest0-21swapper/220:00:182
133048991511,2cyclictest0-21swapper/200:05:092
13304799157,3cyclictest134050irq/121-eno121:50:011
13304799151,5cyclictest3840882-21snmpd19:46:411
133047991512,2cyclictest592639-21kthreadcore00:30:151
133047991512,2cyclictest538620-21fschecks_time23:55:121
133047991512,2cyclictest515023-21aten_repower_po23:40:091
133047991512,2cyclictest477576-21irqcore23:15:151
133047991512,2cyclictest363961-21kthreadcore22:00:151
133047991512,2cyclictest0-21swapper/120:50:001
133047991511,3cyclictest250668-21kthreadcore20:40:171
133047991511,3cyclictest188965-21kthreadcore19:50:151
133047991511,3cyclictest155806-21kthreadcore19:25:161
133047991510,4cyclictest139348-21munin-node19:19:021
13304799150,14cyclictest179207-21basename19:45:001
13304699159,5cyclictest211400-21fschecks_time20:10:120
13304699158,1cyclictest134050irq/121-eno120:00:100
133046991512,2cyclictest176146-21kthreadcore19:40:160
5986302140,2sleep30-21swapper/300:35:013
2649091140,2phc2sys0-21swapper/322:08:003
2649091140,2phc2sys0-21swapper/319:38:173
2649091140,2phc2sys0-21swapper/319:25:183
2649091140,1phc2sys0-21swapper/321:32:553
2649091140,1phc2sys0-21swapper/319:57:013
133048991412,1cyclictest0-21swapper/223:25:012
133048991412,1cyclictest0-21swapper/219:15:032
133048991412,1cyclictest0-21swapper/200:00:142
133048991411,1cyclictest0-21swapper/222:55:172
133048991411,1cyclictest0-21swapper/222:35:012
133048991411,1cyclictest0-21swapper/222:35:002
133048991411,1cyclictest0-21swapper/222:21:242
133048991411,1cyclictest0-21swapper/222:05:082
133048991411,1cyclictest0-21swapper/221:50:152
133048991411,1cyclictest0-21swapper/220:40:162
133048991411,1cyclictest0-21swapper/220:35:142
133048991411,1cyclictest0-21swapper/220:10:162
133048991411,1cyclictest0-21swapper/219:20:152
133048991411,1cyclictest0-21swapper/219:10:022
133048991410,2cyclictest0-21swapper/219:30:132
133048991410,2cyclictest0-21swapper/219:30:132
13304799148,4cyclictest235993-21tail20:30:091
133047991411,2cyclictest599604-21grep00:35:121
133047991411,2cyclictest3851705-21mta-sts-daemon00:08:021
133047991411,2cyclictest3841051-21wpa_supplicant20:55:101
133047991411,2cyclictest1296-21polkitd20:25:001
133047991410,3cyclictest246195-21kthreadcore20:35:171
2649091131,3phc2sys0-21swapper/323:35:093
2649091131,2phc2sys0-21swapper/300:28:403
2649091130,2phc2sys0-21swapper/322:55:093
2649091130,2phc2sys0-21swapper/322:44:203
2649091130,2phc2sys0-21swapper/321:22:153
13304899139,2cyclictest0-21swapper/219:50:092
13304899131,7cyclictest0-21swapper/222:50:082
133048991311,1cyclictest0-21swapper/223:55:032
133048991311,1cyclictest0-21swapper/220:30:152
133048991311,1cyclictest0-21swapper/220:25:102
133048991310,1cyclictest0-21swapper/222:10:222
133048991310,1cyclictest0-21swapper/221:10:172
13304799131,4cyclictest192167-21aten2.4-expect19:55:101
133047991310,2cyclictest218678-21kthreadcore20:15:171
5753522120,3sleep30-21swapper/300:18:553
3305802120,4sleep30-21swapper/321:36:093
2649091124,2phc2sys0-21swapper/322:50:163
2649091121,3phc2sys0-21swapper/323:55:083
2649091120,3phc2sys0-21swapper/321:40:083
2649091120,3phc2sys0-21swapper/320:15:123
2649091120,2phc2sys0-21swapper/320:45:103
2649091120,2phc2sys0-21swapper/320:11:483
2649091120,1phc2sys0-21swapper/319:50:043
2649091120,1phc2sys0-21swapper/319:30:363
2649091120,1phc2sys0-21swapper/319:30:363
13304899129,2cyclictest0-21swapper/220:15:142
13304899129,1cyclictest0-21swapper/220:45:142
133048991210,1cyclictest0-21swapper/220:50:162
133048991210,1cyclictest0-21swapper/220:50:162
133048991210,1cyclictest0-21swapper/200:20:152
383433398110,3rtkit-daemon3851703-21mta-sts-daemon19:06:410
2649091113,2phc2sys0-21swapper/319:20:103
2649091111,4phc2sys0-21swapper/323:00:093
2649091110,3phc2sys0-21swapper/321:00:093
2649091110,2phc2sys0-21swapper/321:10:233
2649091110,2phc2sys0-21swapper/320:40:093
2649091110,2phc2sys0-21swapper/319:49:233
2649091110,1phc2sys0-21swapper/321:52:313
2649091110,1phc2sys0-21swapper/321:07:103
2649091110,1phc2sys0-21swapper/320:28:483
2649091110,1phc2sys0-21swapper/320:24:303
2649091110,1phc2sys0-21swapper/320:05:513
2649091110,1phc2sys0-21swapper/319:11:213
2649091110,1phc2sys0-21swapper/319:11:213
13304899119,1cyclictest0-21swapper/222:00:152
13304799115,5cyclictest3851875-21systemd-journal19:10:011
2649091101,2phc2sys0-21swapper/322:10:083
2649091101,2phc2sys0-21swapper/320:40:013
2649091101,2phc2sys0-21swapper/319:15:183
2649091101,2phc2sys0-21swapper/319:05:123
2649091100,2phc2sys0-21swapper/323:50:253
2649091100,2phc2sys0-21swapper/323:43:553
2649091100,2phc2sys0-21swapper/323:10:043
2649091100,2phc2sys0-21swapper/322:30:083
2649091100,2phc2sys0-21swapper/322:30:083
2649091100,2phc2sys0-21swapper/322:20:183
2649091100,2phc2sys0-21swapper/322:15:093
2649091100,2phc2sys0-21swapper/322:15:093
2649091100,2phc2sys0-21swapper/321:45:583
2649091100,2phc2sys0-21swapper/320:55:083
2649091100,2phc2sys0-21swapper/320:30:073
2649091100,2phc2sys0-21swapper/300:02:023
264909191,3phc2sys0-21swapper/319:40:093
264909190,2phc2sys0-21swapper/323:20:183
264909190,2phc2sys0-21swapper/322:35:293
264909190,2phc2sys0-21swapper/321:15:083
264909190,1phc2sys0-21swapper/320:50:073
264909190,1phc2sys0-21swapper/320:50:073
203765290,2sleep30-21swapper/320:00:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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