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2026-09-22 - 09:05
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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 Tue Sep 22, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39473742830,1sleep0241rcuc/020:44:200
1379212390,2sleep1137914-21apt-get00:28:581
38877132310,2sleep30-21swapper/320:00:023
39010772290,1sleep00-21swapper/020:09:250
3816092992515,1cyclictest0-21swapper/220:59:552
3816090992313,6cyclictest4190393-21cstates23:09:130
381609199220,3cyclictest55704-21grep23:39:241
2447398220,3rtkit-daemon798-21mta-sts-daemon22:50:550
2447398220,2rtkit-daemon75488-21ssh23:53:020
3816090992112,5cyclictest4077542-21kthreadcore22:04:180
2447398210,4rtkit-daemon24610-21gmain22:34:250
2447398210,3rtkit-daemon3823227-21munin-node00:00:350
40189702200,1sleep00-21swapper/021:29:290
381609099208,7cyclictest0-21swapper/021:53:570
2447398200,3rtkit-daemon3908288-21packagekitd20:16:560
3816092991916,1cyclictest0-21swapper/223:40:022
3816091991913,2cyclictest82050irq/121-eno123:09:191
381609199190,17cyclictest3977296-21grep21:05:001
381609099199,6cyclictest0-21swapper/022:41:130
381609099199,6cyclictest0-21swapper/000:09:200
381609099197,7cyclictest0-21swapper/023:13:560
3816090991916,2cyclictest144623-21900:30:010
3816090991912,5cyclictest4090776-21systemd22:10:020
3816090991911,7cyclictest0-21swapper/000:25:010
2447398190,2rtkit-daemon0-21swapper/020:12:020
2447398190,2rtkit-daemon0-21swapper/019:55:240
2213291190,2phc2sys0-21swapper/321:35:353
3816092991815,1cyclictest0-21swapper/200:04:172
3816092991814,2cyclictest0-21swapper/222:49:222
3816092991812,3cyclictest0-21swapper/200:08:582
3816091991814,3cyclictest3925758-21kthreadcore20:29:201
381609099186,7cyclictest0-21swapper/021:48:560
381609099186,7cyclictest0-21swapper/021:43:560
3816090991815,2cyclictest24616-21JS14:54:060
3816090991813,4cyclictest677780-21systemd-journal20:00:030
2447398180,2rtkit-daemon3985943-21ssh21:13:020
2213291180,2phc2sys0-21swapper/323:45:083
2213291180,2phc2sys0-21swapper/322:34:173
2213291180,2phc2sys0-21swapper/321:26:253
2213291180,2phc2sys0-21swapper/321:16:033
3816092991715,1cyclictest0-21swapper/223:10:042
3816092991714,1cyclictest0-21swapper/223:54:152
3816092991714,1cyclictest0-21swapper/221:54:182
3816092991714,1cyclictest0-21swapper/219:16:092
3816092991714,1cyclictest0-21swapper/200:19:212
3816091991714,2cyclictest932-1atopacctd00:17:341
3816091991714,2cyclictest778-21dbus-daemon00:15:011
3816091991714,2cyclictest70-21kcompactd019:34:141
3816091991710,5cyclictest813-21systemd-logind21:08:281
381609099179,6cyclictest0-21swapper/022:00:030
3816090991714,2cyclictest24813-21gsd-housekeepin23:55:200
3816090991714,2cyclictest24472-21rtkit-daemon21:21:440
3816090991713,3cyclictest4032132-21kthreadcore21:39:190
3816090991710,3cyclictest3935853-21unix_chkpwd20:35:010
2213291170,3phc2sys0-21swapper/300:18:513
2213291170,2phc2sys0-21swapper/322:54:043
3816092991614,1cyclictest0-21swapper/220:49:192
3816092991614,1cyclictest0-21swapper/220:04:192
3816092991614,1cyclictest0-21swapper/219:59:242
3816092991614,1cyclictest0-21swapper/219:54:192
381609299161,3cyclictest0-21swapper/221:33:552
3816092991613,1cyclictest0-21swapper/223:29:172
3816092991613,1cyclictest0-21swapper/222:19:182
3816092991613,1cyclictest0-21swapper/220:52:092
3816092991613,1cyclictest0-21swapper/220:24:202
381609299160,10cyclictest0-21swapper/222:23:562
381609199169,3cyclictest8018-21kthreadcore23:14:201
381609199169,3cyclictest3816088-21cyclictest22:55:291
381609199168,4cyclictest4039117-21runrttasks21:43:061
381609199163,8cyclictest100376-21awk00:05:011
381609199161,8cyclictest47184-21awk23:35:001
3816091991613,2cyclictest3816088-21cyclictest22:20:021
3816091991613,2cyclictest37260-21latency23:29:211
3816091991612,3cyclictest91767-21latency_hist00:00:031
3816091991612,3cyclictest4152496-21latency_hist22:45:021
3816091991612,3cyclictest4119785-21fschecks_count22:29:181
3816091991612,3cyclictest4111402-21grep22:24:171
3816091991612,3cyclictest3901036-21timerandwakeup20:09:251
3816091991610,2cyclictest82050irq/121-eno100:09:221
381609099168,4cyclictest3995210-21/usr/sbin/munin21:19:240
381609099166,6cyclictest0-21swapper/020:52:130
381609099166,4cyclictest0-21swapper/023:38:550
381609099161,7cyclictest4182991-21kthreadcore23:04:210
381609099161,7cyclictest4103917-21kthreadcore22:19:170
3816090991613,2cyclictest4116521-21unixbench-2d22:24:250
3816090991613,2cyclictest3846230-21systemd-run19:30:010
3816090991612,3cyclictest58434-21aten_repower_po23:44:060
3816090991612,3cyclictest4120203-21irqcore22:29:210
3816090991612,3cyclictest20480-21kworker/u16:3+nfsiod23:34:070
3816090991610,5cyclictest3863532-21kthreadcore19:44:190
2213291160,4phc2sys0-21swapper/319:18:553
2213291160,2phc2sys0-21swapper/322:56:003
2213291160,2phc2sys0-21swapper/322:38:263
2213291160,1phc2sys0-21swapper/323:00:143
3816092991513,1cyclictest0-21swapper/223:34:192
3816092991513,1cyclictest0-21swapper/221:49:202
3816092991513,1cyclictest0-21swapper/221:13:592
3816092991513,1cyclictest0-21swapper/219:39:202
3816092991512,1cyclictest0-21swapper/223:49:152
3816092991512,1cyclictest0-21swapper/223:25:002
3816092991512,1cyclictest0-21swapper/223:19:192
3816092991512,1cyclictest0-21swapper/222:30:052
3816092991512,1cyclictest0-21swapper/222:15:002
3816092991512,1cyclictest0-21swapper/222:04:222
3816092991512,1cyclictest0-21swapper/221:04:192
3816092991512,1cyclictest0-21swapper/220:14:212
3816092991512,1cyclictest0-21swapper/219:34:202
3816092991512,1cyclictest0-21swapper/200:36:402
381609199156,4cyclictest4183294-21kthreadcore23:04:211
381609199153,4cyclictest0-21swapper/100:23:571
381609199152,8cyclictest3942740-21awk20:40:011
3816091991513,2cyclictest351ktimers/121:28:511
3816091991512,2cyclictest778-21dbus-daemon22:10:001
3816091991512,2cyclictest778-21dbus-daemon20:45:021
3816091991512,2cyclictest3877395-21kthreadcore19:54:171
3816091991512,2cyclictest24472-21rtkit-daemon19:47:061
3816091991512,2cyclictest1188-21runrttasks23:16:281
3816091991511,3cyclictest61882-21kthreadcore23:44:191
3816091991511,3cyclictest4140666-21kthreadcore22:39:191
3816091991511,3cyclictest4131223-21kthreadcore22:34:191
3816091991511,3cyclictest4099518-21sh22:15:011
3816091991511,3cyclictest4023178-21irqrtprio21:34:161
3816091991511,3cyclictest4012194-21kworker/u16:3+nfsiod21:35:311
3816091991511,3cyclictest3963192-21timerandwakeup20:54:251
3816091991511,3cyclictest3952848-21kthreadcore20:49:181
3816091991511,3cyclictest3935220-21phc2sys20:34:221
3816091991511,3cyclictest3912733-21kthreadcore20:19:191
3816091991511,3cyclictest3904608-21kthreadcore20:14:191
3816091991511,3cyclictest3825630-21switchtime19:15:051
3816091991510,4cyclictest3916813-21tr20:24:171
381609199150,9cyclictest4072991-21922:00:031
381609099159,5cyclictest24615-21JS14:54:060
381609099158,3cyclictest118079-21kworker/0:2+mm_percpu_wq00:19:160
381609099157,2cyclictest0-21swapper/022:58:240
381609099157,2cyclictest0-21swapper/000:35:030
381609099156,2cyclictest0-21swapper/022:10:040
3816090991512,2cyclictest24615-21JS14:54:060
3816090991512,2cyclictest1206-21snmpd23:48:140
3816090991511,3cyclictest4024424-21kthreadcore21:34:180
3816090991511,3cyclictest3981642-21kthreadcore21:09:200
3816090991511,3cyclictest3868435-21irqcore19:49:160
3816090991511,3cyclictest3856630-21kthreadcore19:39:200
3816090991511,3cyclictest3837674-21kthreadcore19:24:210
3816090991511,3cyclictest3821443-21kthreadcore19:14:200
3816090991511,3cyclictest15342-21kthreadcore23:19:190
3816090991511,3cyclictest115048-21kthreadcore00:14:200
2213291151,7phc2sys0-21swapper/323:18:573
2213291150,3phc2sys0-21swapper/323:08:563
2213291150,2phc2sys0-21swapper/323:52:573
2213291150,2phc2sys0-21swapper/322:03:113
381609299146,4cyclictest0-21swapper/222:58:552
381609299145,4cyclictest0-21swapper/221:18:572
381609299145,4cyclictest0-21swapper/219:28:582
381609299141,5cyclictest0-21swapper/222:53:572
3816092991412,1cyclictest0-21swapper/223:59:212
3816092991412,1cyclictest0-21swapper/223:44:182
3816092991412,1cyclictest0-21swapper/222:44:182
3816092991412,1cyclictest0-21swapper/221:40:022
3816092991412,1cyclictest0-21swapper/221:29:252
3816092991412,1cyclictest0-21swapper/220:35:032
3816092991412,1cyclictest0-21swapper/220:09:172
3816092991412,1cyclictest0-21swapper/219:49:172
3816092991412,1cyclictest0-21swapper/200:14:202
3816092991411,1cyclictest0-21swapper/222:09:082
3816092991411,1cyclictest0-21swapper/221:59:192
3816092991411,1cyclictest0-21swapper/221:43:552
3816092991411,1cyclictest0-21swapper/221:09:162
3816092991411,1cyclictest0-21swapper/220:29:192
3816092991411,1cyclictest0-21swapper/220:19:142
3816092991411,1cyclictest0-21swapper/219:44:182
3816092991411,1cyclictest0-21swapper/219:14:182
3816092991411,1cyclictest0-21swapper/200:29:202
3816092991410,2cyclictest0-21swapper/222:29:172
3816092991410,2cyclictest0-21swapper/220:43:222
381609199148,2cyclictest82050irq/121-eno123:49:051
3816091991411,2cyclictest3816266-21/usr/sbin/munin19:10:031
3816091991410,3cyclictest4160509-21mailstats22:49:231
3816091991410,3cyclictest4012194-21kworker/u16:3+nfsiod22:04:581
3816091991410,3cyclictest3995319-21aten_repower_en21:19:001
3816091991410,3cyclictest3970612-21kworker/u16:0+nfsiod21:22:381
3816091991410,3cyclictest3966007-21kthreadcore20:59:191
3816091991410,3cyclictest3908422-21kworker/u16:1+nfsiod21:47:031
3816091991410,3cyclictest3854696-21irqcore19:39:171
3816091991410,3cyclictest3815853-21cron19:10:041
3816091991410,3cyclictest20480-21kworker/u16:3+nfsiod23:52:501
3816091991410,3cyclictest157041-21kernelversion00:39:191
381609199140,5cyclictest146814-21ssh00:33:571
381609099147,1cyclictest191rcu_preempt21:03:560
381609099145,8cyclictest4139933-21kthreadcore22:39:200
381609099145,4cyclictest3964105-21/usr/sbin/munin20:59:260
3816090991411,2cyclictest3951116-21gltestperf20:49:150
3816090991411,2cyclictest3916398-21sh20:24:140
3816090991411,2cyclictest3849130-21kthreadcore19:34:190
3816090991411,2cyclictest24619-21llvmpipe-120:39:590
3816090991411,2cyclictest22603-21aten_repower_fr23:24:040
3816090991410,3cyclictest4012194-21kworker/u16:3+nfsiod22:48:050
3816090991410,3cyclictest3830131-21kthreadcore19:19:190
381609099140,4cyclictest3874354-21apt-get19:53:550
2213291140,2phc2sys0-21swapper/323:55:033
2213291140,2phc2sys0-21swapper/321:31:013
2213291140,2phc2sys0-21swapper/321:22:003
381609299139,2cyclictest0-21swapper/223:04:022
3816092991311,1cyclictest0-21swapper/223:14:202
3816092991311,1cyclictest0-21swapper/220:34:192
3816092991310,1cyclictest0-21swapper/222:39:182
3816092991310,1cyclictest0-21swapper/221:24:162
3816092991310,1cyclictest0-21swapper/219:24:182
3816092991310,1cyclictest0-21swapper/200:34:172
3816092991310,1cyclictest0-21swapper/200:24:042
381609199139,3cyclictest3890388-21kthreadcore20:04:201
381609199139,3cyclictest3834084-21irqrtprio19:24:181
381609199135,3cyclictest41621752ssh22:51:271
3816091991310,2cyclictest677780-21systemd-journal20:00:031
3816091991310,2cyclictest3993217-21sh21:15:021
3816091991310,2cyclictest3845699-21switchtime19:29:261
2213291135,3phc2sys0-21swapper/322:23:213
2213291133,2phc2sys0-21swapper/300:32:543
2213291131,4phc2sys0-21swapper/300:13:573
2213291131,2phc2sys0-21swapper/322:27:073
2213291130,4phc2sys0-21swapper/300:07:063
2213291130,3phc2sys0-21swapper/321:47:093
2213291130,3phc2sys0-21swapper/319:26:293
2213291130,2phc2sys0-21swapper/323:43:563
2213291130,2phc2sys0-21swapper/323:27:433
2213291130,2phc2sys0-21swapper/323:11:043
2213291130,2phc2sys0-21swapper/321:44:003
41011672120,3sleep30-21swapper/322:18:243
381609199129,2cyclictest932-1atopacctd19:44:001
381609199126,2cyclictest82050irq/121-eno123:20:171
381609199123,4cyclictest0-21swapper/121:50:521
381609099120,6cyclictest3816155-21919:10:030
2213291123,2phc2sys0-21swapper/319:39:203
2213291121,4phc2sys0-21swapper/323:24:293
2213291120,3phc2sys0-21swapper/322:10:323
2213291120,3phc2sys0-21swapper/320:03:583
2213291120,2phc2sys0-21swapper/300:29:013
2213291120,1phc2sys0-21swapper/321:02:003
2213291120,1phc2sys0-21swapper/320:42:443
2213291112,2phc2sys0-21swapper/321:10:123
2213291110,3phc2sys0-21swapper/320:38:573
2213291110,2phc2sys0-21swapper/323:37:233
2213291110,2phc2sys0-21swapper/322:48:563
2213291110,1phc2sys0-21swapper/322:41:423
2213291110,1phc2sys0-21swapper/320:11:303
2213291110,1phc2sys0-21swapper/320:09:023
2213291110,1phc2sys0-21swapper/319:54:563
2213291102,2phc2sys0-21swapper/322:09:383
2213291101,3phc2sys0-21swapper/320:48:563
2213291101,3phc2sys0-21swapper/320:26:293
2213291101,2phc2sys0-21swapper/323:34:133
2213291101,2phc2sys0-21swapper/319:14:183
2213291100,2phc2sys0-21swapper/321:57:003
2213291100,2phc2sys0-21swapper/319:45:053
2213291100,2phc2sys0-21swapper/300:37:073
2213291100,2phc2sys0-21swapper/300:02:483
2213291100,1phc2sys0-21swapper/321:07:133
2213291100,1phc2sys0-21swapper/320:50:343
38160929991,4cyclictest0-21swapper/219:10:032
221329191,2phc2sys0-21swapper/320:56:033
221329191,2phc2sys0-21swapper/319:22:593
221329190,6phc2sys4056108-21taskset21:51:373
221329190,2phc2sys0-21swapper/320:35:033
221329190,2phc2sys0-21swapper/320:23:563
221329190,2phc2sys0-21swapper/319:33:583
221329190,2phc2sys0-21swapper/319:08:573
221329190,2phc2sys0-21swapper/300:20:193
221329181,2phc2sys0-21swapper/319:42:523
221329180,2phc2sys0-21swapper/320:15:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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