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2026-08-26 - 10:26
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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 Wed Aug 26, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
58273521880,2sleep30-21swapper/320:09:383
8757122510,2sleep30-21swapper/323:08:123
8397772360,2sleep30-21swapper/322:46:393
504205993111,13cyclictest0-21swapper/000:39:370
504205993111,13cyclictest0-21swapper/000:39:370
5276302290,2sleep30-21swapper/319:25:573
504205992616,6cyclictest953131-21/usr/sbin/munin23:50:030
2213291261,5phc2sys0-21swapper/321:34:363
50420599258,10cyclictest0-21swapper/022:39:350
504205992510,9cyclictest0-21swapper/000:19:360
9970132240,2sleep0778-21dbus-daemon00:15:030
504212992414,4cyclictest838514-21systemd-run22:45:031
504212992317,2cyclictest82050irq/121-eno100:20:011
5832112220,1sleep0583101-21cstates20:09:550
504212992215,3cyclictest376-21systemd-journal22:45:031
504205992215,5cyclictest24648-21gmain22:55:310
504205992210,8cyclictest0-21swapper/022:20:030
504212992118,2cyclictest913120-21kthreadcore23:30:011
50420599219,8cyclictest759034-21ptp4l-jitter22:00:050
504205992110,7cyclictest922028-21kthreadcore23:34:570
50420599209,6cyclictest0-21swapper/021:25:070
50420599208,8cyclictest0-21swapper/022:53:130
504205992014,5cyclictest1206-21snmpd22:09:550
504205992013,5cyclictest24604-21gnome-shell23:57:090
504205992012,3cyclictest0-21swapper/020:19:360
504205992010,9cyclictest376-21systemd-journal19:35:090
50420599200,6cyclictest832370-21ssh22:44:360
504212991912,6cyclictest24617-21JS14:54:061
504212991912,6cyclictest24615-21JS14:54:061
50420599198,6cyclictest0-21swapper/021:49:590
50420599197,8cyclictest0-21swapper/000:24:190
50420599197,7cyclictest0-21swapper/023:09:360
50420599195,8cyclictest0-21swapper/023:45:020
504205991915,3cyclictest659993-21kthreadcore21:05:070
504205991915,3cyclictest659993-21kthreadcore21:05:070
504205991911,7cyclictest799950-21kworker/u16:3+nfsiod23:02:190
504205991911,6cyclictest754156-21irqrtprio21:59:580
504205991910,7cyclictest24615-21JS14:54:060
2213291191,6phc2sys0-21swapper/322:14:373
10243692190,2sleep30-21swapper/300:30:093
50421299188,4cyclictest778-21dbus-daemon00:25:011
504212991815,2cyclictest24617-21JS14:54:061
504212991815,2cyclictest1011-21gdbus21:50:031
504212991814,3cyclictest714632-21921:35:021
504212991814,3cyclictest510603-21kthreadcore19:15:011
504212991810,3cyclictest677932-21latency_hist21:15:031
50420599189,8cyclictest885690-21cstates23:14:530
50420599189,8cyclictest778-21dbus-daemon00:30:020
50420599187,7cyclictest1011-21gdbus23:40:030
50420599187,7cyclictest0-21swapper/021:53:190
50420599187,7cyclictest0-21swapper/021:25:010
50420599187,7cyclictest0-21swapper/021:12:350
50420599187,6cyclictest0-21swapper/022:22:230
50420599186,8cyclictest816131-21kthreadcore22:34:570
50420599186,8cyclictest0-21swapper/021:43:160
504205991815,2cyclictest552804-21grep19:45:000
504205991813,1cyclictest0-21swapper/000:34:580
504205991812,5cyclictest975-21in:imuxsock21:00:000
504205991812,5cyclictest778-21dbus-daemon23:30:020
504205991812,5cyclictest24472-21rtkit-daemon19:24:250
504205991811,6cyclictest504201-21cyclictest20:02:590
504205991811,5cyclictest767586-21kworker/u16:1+nfsiod23:17:110
504205991810,7cyclictest286275-21kworker/u16:2+nfsiod22:12:190
504205991810,6cyclictest953353-21mailstats23:50:050
50420599180,12cyclictest811006-21munin-plugin-st22:30:020
2213291180,2phc2sys0-21swapper/322:09:483
504216991715,1cyclictest0-21swapper/221:21:452
50421299177,4cyclictest0-21swapper/122:05:031
50421299176,6cyclictest977-21rs:main1
504212991714,2cyclictest862-21gmain00:25:041
504212991714,2cyclictest574898-21tr20:00:021
504212991710,5cyclictest376-21systemd-journal21:26:231
504212991710,3cyclictest858755-21/usr/sbin/munin22:59:531
50420599178,8cyclictest0-21swapper/021:15:100
50420599177,4cyclictest623707-21apt-get20:39:360
50420599176,7cyclictest0-21swapper/000:03:160
504205991714,2cyclictest24616-21JS14:54:060
504205991711,5cyclictest844362-21kthreadcore22:50:010
504205991711,5cyclictest504201-21cyclictest20:25:140
504205991710,6cyclictest977-21rs:main0
504205991710,6cyclictest563311-21irqcore19:54:570
504205991710,5cyclictest904341-21kthreadcore23:24:580
2213291171,4phc2sys0-21swapper/321:44:433
2213291171,1phc2sys0-21swapper/321:13:283
50421699169,4cyclictest0-21swapper/200:39:372
50421699169,4cyclictest0-21swapper/200:39:372
504216991614,1cyclictest0-21swapper/222:55:312
50421299168,4cyclictest0-21swapper/100:34:361
504212991613,2cyclictest932-1atopacctd22:20:351
504212991613,2cyclictest522077-21sort19:24:571
504212991612,3cyclictest504201-21cyclictest21:54:581
504212991610,4cyclictest827920-21kthreadcore22:39:591
50420599166,6cyclictest0-21swapper/021:32:300
50420599162,13cyclictest637352-21apt-get20:49:370
504205991612,3cyclictest590824-21kthreadcore20:14:590
504205991610,5cyclictest714731-21kworker/u16:1+nfsiod21:38:100
504205991610,5cyclictest657974-21aten_repower_en21:04:490
504205991610,5cyclictest602598-21timerwakeupswit20:20:050
504205991610,5cyclictest533102-21kthreadcore19:30:030
504205991610,5cyclictest506774-21kthreadcore19:14:580
504205991610,5cyclictest504201-21cyclictest20:34:590
50420599160,15cyclictest932-1atopacctd19:59:370
2213291160,2phc2sys0-21swapper/321:53:093
2213291160,2phc2sys0-21swapper/321:36:253
504216991512,1cyclictest0-21swapper/223:57:092
504216991512,1cyclictest0-21swapper/223:03:092
504216991512,1cyclictest0-21swapper/222:09:552
50421299159,2cyclictest82050irq/121-eno122:54:281
50421299159,2cyclictest82050irq/121-eno121:44:131
50421299158,2cyclictest82050irq/121-eno100:39:361
50421299158,2cyclictest82050irq/121-eno100:39:361
50421299154,3cyclictest0-21swapper/123:34:361
50421299152,8cyclictest560876-21awk19:50:001
50421299151,2cyclictest820966-21munin-run22:35:031
504212991512,2cyclictest868286-21fschecks_count23:04:531
504212991512,2cyclictest778-21dbus-daemon19:30:021
504212991512,2cyclictest640720-21kthreadcore20:50:071
504212991512,2cyclictest3889-21cron20:40:011
504212991512,2cyclictest286275-21kworker/u16:2-events_unbound22:18:531
504212991511,3cyclictest908457-21kworker/u16:2+nfsiod23:48:021
504212991511,3cyclictest767586-21kworker/u16:1+nfsiod23:06:061
504212991511,3cyclictest651098-21aten_repower_en20:59:401
504212991511,3cyclictest606060-21kthreadcore20:25:131
504212991511,3cyclictest591578-21kthreadcore20:14:591
504212991511,3cyclictest534486-21unixbench_multi19:30:091
504212991511,2cyclictest778-21dbus-daemon00:05:031
504212991510,4cyclictest992526-21kernelversion00:14:591
504212991510,1cyclictest82050irq/121-eno122:27:331
50420599158,5cyclictest376-21systemd-journal19:20:010
504205991510,4cyclictest531245-21kthreadcore19:30:020
2213291151,5phc2sys0-21swapper/319:54:363
2213291151,3phc2sys0-21swapper/322:19:343
2213291150,7phc2sys0-21swapper/320:24:373
2213291150,6phc2sys0-21swapper/320:59:363
2213291150,2phc2sys0-21swapper/323:21:203
2213291150,2phc2sys0-21swapper/322:56:393
2213291150,2phc2sys0-21swapper/319:14:573
2213291150,2phc2sys0-21swapper/300:28:383
2213291150,2phc2sys0-21swapper/300:24:073
2213291150,1phc2sys0-21swapper/321:15:363
50421699149,2cyclictest0-21swapper/221:44:362
504216991411,1cyclictest0-21swapper/223:30:052
504216991411,1cyclictest0-21swapper/221:00:002
504216991411,1cyclictest0-21swapper/220:19:362
50421699141,10cyclictest8141202sleep222:33:282
50421699140,11cyclictest946846-21chrt23:49:152
50421699140,11cyclictest623663-21chrt20:39:262
50421699140,11cyclictest527984-21chrt19:29:412
50421699140,11cyclictest1007699-21chrt00:22:272
50421299148,5cyclictest615998-21wc20:30:041
50421299147,5cyclictest779162-21sh22:14:141
50421299146,3cyclictest0-21swapper/122:09:481
50421299145,8cyclictest716438-1ssh21:37:171
504212991411,2cyclictest961760-21nfs4_client23:55:021
504212991411,2cyclictest778-21dbus-daemon23:40:031
504212991411,2cyclictest670356-21missed_timers21:10:011
504212991411,2cyclictest670356-21missed_timers21:10:011
504212991411,2cyclictest633542-21kthreadcore20:45:021
504212991411,2cyclictest576549-21fschecks_time20:04:561
504212991411,2cyclictest547774-21processes19:40:031
504212991410,3cyclictest820816-21kworker/u16:0+nfsiod23:40:101
504212991410,3cyclictest685773-21kthreadcore21:20:001
50421299140,5cyclictest504451-21processes19:10:031
504205991410,3cyclictest554929-21timerwakeupswit19:45:060
2213291147,2phc2sys0-21swapper/323:28:373
2213291140,4phc2sys0-21swapper/321:04:383
2213291140,2phc2sys0-21swapper/323:11:263
2213291140,2phc2sys0-21swapper/323:01:203
2213291140,2phc2sys0-21swapper/322:44:363
66566321310,1sleep20-21swapper/221:09:582
66566321310,1sleep20-21swapper/221:09:582
50421699135,4cyclictest0-21swapper/223:44:362
50421699135,3cyclictest0-21swapper/222:49:372
50421699134,4cyclictest0-21swapper/200:29:382
50421699131,7cyclictest0-21swapper/221:14:382
504216991310,1cyclictest0-21swapper/223:17:112
504216991310,1cyclictest0-21swapper/221:59:582
504216991310,1cyclictest0-21swapper/221:46:042
504216991310,1cyclictest0-21swapper/220:54:572
504216991310,1cyclictest0-21swapper/219:24:252
504216991310,1cyclictest0-21swapper/200:10:062
50421699130,4cyclictest0-21swapper/220:34:362
50421699130,10cyclictest582650-21chrt20:09:002
50421299139,3cyclictest544451-21kthreadcore19:39:591
50421299139,3cyclictest514367-21aten_repower_po19:19:471
50421299131,7cyclictest758437-21cat22:00:021
504212991310,2cyclictest885655-21cstates23:14:531
504212991310,2cyclictest597381-21irqcore20:19:571
504212991310,2cyclictest1-21systemd21:02:181
50421299130,6cyclictest694268-21kthreadcore21:25:001
50420599138,4cyclictest778-21dbus-daemon19:10:020
2213291131,5phc2sys0-21swapper/319:44:373
2213291131,5phc2sys0-21swapper/300:39:363
2213291131,5phc2sys0-21swapper/300:39:363
2213291131,3phc2sys0-21swapper/319:34:363
2213291130,6phc2sys0-21swapper/323:49:373
2213291130,3phc2sys0-21swapper/323:38:213
2213291130,3phc2sys0-21swapper/321:20:223
2213291130,3phc2sys0-21swapper/300:19:563
2213291130,1phc2sys0-21swapper/320:54:563
2213291130,1phc2sys0-21swapper/320:28:263
5690932122,6sleep30-21swapper/319:59:373
50421699129,1cyclictest0-21swapper/223:24:582
50421699129,1cyclictest0-21swapper/222:54:552
50421699129,1cyclictest0-21swapper/222:23:412
50421699129,1cyclictest0-21swapper/222:19:572
50421699129,1cyclictest0-21swapper/222:12:192
50421699129,1cyclictest0-21swapper/221:38:102
50421699129,1cyclictest0-21swapper/221:04:492
50421699129,1cyclictest0-21swapper/220:20:052
50421699129,1cyclictest0-21swapper/219:54:572
50421699129,1cyclictest0-21swapper/219:35:092
50421699129,1cyclictest0-21swapper/219:14:582
50421699129,1cyclictest0-21swapper/200:18:382
50421699129,1cyclictest0-21swapper/200:07:092
50421699126,3cyclictest0-21swapper/223:09:352
50421699125,2cyclictest0-21swapper/221:19:372
50421699124,3cyclictest0-21swapper/223:54:372
50421699124,3cyclictest0-21swapper/221:34:372
50421699123,6cyclictest1024229-21chrt00:30:082
50421699123,4cyclictest0-21swapper/223:14:362
50421699122,6cyclictest0-21swapper/222:39:362
50421699121,1cyclictest0-21swapper/221:30:012
504216991210,1cyclictest0-21swapper/223:30:022
504216991210,1cyclictest0-21swapper/220:25:142
50421699120,9cyclictest7647582chrt22:05:012
50421699120,6cyclictest0-21swapper/219:59:362
50421699120,2cyclictest0-21swapper/223:39:362
50421299125,5cyclictest966049-21cut23:59:581
50421299125,5cyclictest895513-21tr23:19:581
50421299125,5cyclictest1011-21gdbus20:50:011
50421299125,2cyclictest82050irq/121-eno123:20:241
2213291120,7phc2sys757805-21sleep22:00:013
2213291120,2phc2sys0-21swapper/320:04:573
2213291120,2phc2sys0-21swapper/300:08:223
2213291120,1phc2sys0-21swapper/320:33:123
50421699119,1cyclictest0-21swapper/222:42:132
50421699119,1cyclictest0-21swapper/220:05:032
50421699119,1cyclictest0-21swapper/219:30:032
50421699118,1cyclictest0-21swapper/221:54:132
50421699118,1cyclictest0-21swapper/220:42:332
50421699118,1cyclictest0-21swapper/219:44:512
50421699110,8cyclictest9735492sleep200:04:402
50421699110,8cyclictest8041362sleep222:25:582
2213291110,3phc2sys0-21swapper/319:23:093
2213291110,2phc2sys0-21swapper/321:49:363
2213291110,1phc2sys0-21swapper/320:17:403
50421699108,1cyclictest0-21swapper/220:45:372
50421699107,1cyclictest0-21swapper/219:16:322
50421699101,6cyclictest554608-21taskset19:45:042
50421699100,6cyclictest588707-21chrt20:10:052
2213291102,2phc2sys0-21swapper/322:30:043
2213291101,4phc2sys0-21swapper/319:49:363
2213291101,3phc2sys0-21swapper/320:40:053
2213291101,2phc2sys0-21swapper/323:53:033
2213291101,2phc2sys0-21swapper/322:51:103
2213291101,2phc2sys0-21swapper/322:35:053
2213291100,3phc2sys0-21swapper/321:09:563
2213291100,3phc2sys0-21swapper/321:09:563
2213291100,2phc2sys0-21swapper/323:58:423
2213291100,2phc2sys0-21swapper/323:44:133
2213291100,2phc2sys0-21swapper/323:30:543
2213291100,2phc2sys0-21swapper/323:15:153
2213291100,2phc2sys0-21swapper/322:27:283
2213291100,2phc2sys0-21swapper/322:21:023
2213291100,2phc2sys0-21swapper/322:03:073
2213291100,2phc2sys0-21swapper/321:29:563
2213291100,2phc2sys0-21swapper/320:10:243
2213291100,2phc2sys0-21swapper/319:19:563
2213291100,2phc2sys0-21swapper/300:15:003
2213291100,2phc2sys0-21swapper/300:04:373
221329191,2phc2sys0-21swapper/319:09:593
221329190,3phc2sys0-21swapper/319:39:363
221329190,2phc2sys0-21swapper/320:45:063
221329190,2phc2sys0-21swapper/320:35:453
5042169986,1cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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