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2026-01-07 - 10:30
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Wed Jan 07, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
132426221020,1sleep00-21swapper/023:31:500
137453321010,2sleep30-21swapper/323:58:143
9856782350,1sleep00-21swapper/019:58:170
11612522310,2sleep20-21swapper/221:59:022
922779992920,4cyclictest0-21swapper/121:48:051
922776992522,2cyclictest1340616-21idleruntime-cro23:40:000
10608412230,2sleep30-21swapper/321:03:123
922779992220,1cyclictest0-21swapper/122:40:001
922779992219,2cyclictest1322985-21systemd-run23:30:011
922776992210,4cyclictest1308951-21kthreadcore23:23:110
2902298220,5rtkit-daemon1170433-21ssh22:04:300
922779992118,2cyclictest1429807-21latency_hist00:30:001
922776992118,2cyclictest1047078-21/usr/sbin/munin20:50:000
922776992112,5cyclictest1406784-21kthreadcore00:18:120
2902298210,6rtkit-daemon929174-21munin-node23:16:310
2902298210,5rtkit-daemon0-21swapper/000:07:480
2902298210,3rtkit-daemon1091438-21gmain21:50:300
922790992018,1cyclictest0-21swapper/223:45:002
922790992018,1cyclictest0-21swapper/221:20:022
922790992017,1cyclictest0-21swapper/222:38:092
922790992017,1cyclictest0-21swapper/221:30:012
922790992017,1cyclictest0-21swapper/221:08:132
922779992011,4cyclictest0-21swapper/122:53:121
92277699209,6cyclictest0-21swapper/000:38:120
92277699205,5cyclictest1184864-21kthreadcore22:13:120
922776992017,2cyclictest1260607-21latency_hist22:55:010
922776992013,6cyclictest1280483-21/usr/sbin/munin23:08:060
922776992013,6cyclictest1202937-21kthreadcore22:23:120
922776992012,7cyclictest3532119-1atop23:50:010
922776992010,5cyclictest0-21swapper/023:45:020
2902298200,4rtkit-daemon0-21swapper/023:14:490
2902298200,1rtkit-daemon0-21swapper/020:52:430
2649091200,2phc2sys0-21swapper/322:38:323
922790991916,1cyclictest0-21swapper/223:48:122
922790991916,1cyclictest0-21swapper/223:28:122
922790991916,1cyclictest0-21swapper/222:23:122
922790991916,1cyclictest0-21swapper/221:55:012
922790991916,1cyclictest0-21swapper/219:40:012
922790991916,1cyclictest0-21swapper/219:23:122
922790991916,1cyclictest0-21swapper/219:20:012
922790991916,1cyclictest0-21swapper/200:38:052
922790991916,1cyclictest0-21swapper/200:18:122
922790991916,1cyclictest0-21swapper/200:13:112
922779991912,2cyclictest0-21swapper/121:25:001
922779991911,3cyclictest1211663-21kthreadcore22:28:121
92277699199,5cyclictest0-21swapper/021:18:200
92277699198,6cyclictest0-21swapper/021:48:020
922776991916,2cyclictest1290-21dbus-daemon21:15:000
2649091190,2phc2sys0-21swapper/323:05:543
2649091190,2phc2sys0-21swapper/321:34:073
92279099189,4cyclictest0-21swapper/223:58:112
922790991816,1cyclictest0-21swapper/223:25:012
922790991815,1cyclictest0-21swapper/223:18:112
922790991815,1cyclictest0-21swapper/223:13:122
922790991815,1cyclictest0-21swapper/222:58:112
922790991815,1cyclictest0-21swapper/222:08:172
922790991815,1cyclictest0-21swapper/222:03:072
922790991815,1cyclictest0-21swapper/221:45:022
922790991815,1cyclictest0-21swapper/221:33:102
922790991815,1cyclictest0-21swapper/221:05:022
922790991815,1cyclictest0-21swapper/221:00:012
922790991815,1cyclictest0-21swapper/220:48:102
922790991815,1cyclictest0-21swapper/219:50:022
922790991815,1cyclictest0-21swapper/219:45:012
922790991815,1cyclictest0-21swapper/219:10:022
922790991815,1cyclictest0-21swapper/200:03:082
92279099180,15cyclictest1210573-21chrt22:28:112
922779991815,2cyclictest1436389-21kthreadcore00:33:131
922779991815,2cyclictest1410766-21unixbench-2d00:18:181
922779991815,2cyclictest1016588-21grep20:25:011
922779991813,3cyclictest257-21systemd-journal20:29:561
92277699185,7cyclictest1068243-21tr21:08:110
922776991816,1cyclictest1247658-21ssh22:48:120
922776991815,2cyclictest992644-21latency_hist20:05:020
922776991815,2cyclictest1326-21systemd-logind23:55:010
922776991815,2cyclictest1269323-21latency_hist23:00:000
922776991815,2cyclictest1241132-21timerandwakeup22:43:160
92277699181,4cyclictest0-21swapper/021:30:290
922776991810,4cyclictest1436287-21kthreadcore00:33:130
2649091180,2phc2sys0-21swapper/322:18:033
922790991715,1cyclictest0-21swapper/222:53:112
922790991715,1cyclictest0-21swapper/222:50:002
922790991715,1cyclictest0-21swapper/221:25:012
922790991715,1cyclictest0-21swapper/200:35:012
922790991714,1cyclictest0-21swapper/223:08:102
922790991714,1cyclictest0-21swapper/223:03:062
922790991714,1cyclictest0-21swapper/222:45:002
922790991714,1cyclictest0-21swapper/222:33:052
922790991714,1cyclictest0-21swapper/222:13:112
922790991714,1cyclictest0-21swapper/221:48:042
922790991714,1cyclictest0-21swapper/221:13:122
922790991714,1cyclictest0-21swapper/220:08:132
922790991714,1cyclictest0-21swapper/200:28:112
922790991714,1cyclictest0-21swapper/200:23:132
922790991713,2cyclictest0-21swapper/220:33:062
92277999178,4cyclictest0-21swapper/100:40:021
922779991714,2cyclictest28938-21cron19:20:001
922779991714,2cyclictest1299043-21cut23:18:081
922779991714,2cyclictest1-21systemd22:10:001
922779991714,2cyclictest1197896-21cut22:20:021
922779991714,2cyclictest1079114-21wc21:13:161
922779991714,2cyclictest0-21swapper/123:00:011
922779991714,2cyclictest0-21swapper/120:00:011
922779991711,5cyclictest1170643-21sshd22:04:501
92277699178,5cyclictest0-21swapper/022:08:160
922776991715,1cyclictest1065775-21/usr/sbin/munin21:05:010
922776991714,2cyclictest949572-21cut19:30:010
922776991714,2cyclictest937488-21cat19:20:000
922776991714,2cyclictest1126335-21latency_hist21:40:020
922776991714,2cyclictest1017025-21sh20:25:020
922776991714,2cyclictest0-21swapper/022:40:000
922776991711,5cyclictest1192075-21irqrtprio22:18:100
922776991711,5cyclictest1156599-21kthreadcore21:58:120
2649091178,2phc2sys0-21swapper/322:43:093
2649091170,3phc2sys0-21swapper/321:28:093
2649091170,3phc2sys0-21swapper/300:02:153
2649091170,2phc2sys0-21swapper/322:25:093
2649091170,2phc2sys0-21swapper/300:27:203
92279099161,6cyclictest0-21swapper/222:20:012
922790991614,1cyclictest0-21swapper/220:13:122
922790991614,1cyclictest0-21swapper/219:53:062
922790991613,1cyclictest0-21swapper/223:40:002
922790991613,1cyclictest0-21swapper/223:33:102
922790991613,1cyclictest0-21swapper/221:38:052
922790991613,1cyclictest0-21swapper/220:43:102
92277999167,3cyclictest0-21swapper/121:10:011
922779991614,1cyclictest1218983-21irqrtprio22:33:101
922779991613,2cyclictest949366-21unixbench_singl19:28:221
922779991613,2cyclictest922767-21cyclictest20:53:101
922779991613,2cyclictest1338879-21grep23:38:141
922779991613,2cyclictest1290-21dbus-daemon21:05:011
922779991613,2cyclictest1290-21dbus-daemon20:40:001
922779991613,2cyclictest1278310-21wc23:05:001
922779991613,2cyclictest1183173-21grep22:13:101
922779991613,2cyclictest1129385-21sort21:43:101
922779991613,2cyclictest1090108-21cut21:20:021
922779991612,3cyclictest1347748-21latency23:43:131
92277699168,4cyclictest0-21swapper/000:05:020
92277699168,2cyclictest0-21swapper/023:58:110
92277699166,5cyclictest0-21swapper/021:43:050
922776991614,1cyclictest1004486-21perf20:15:010
922776991613,2cyclictest979905-21apt-key19:55:000
922776991613,2cyclictest922870-21apt-key19:10:010
922776991613,2cyclictest922767-21cyclictest20:28:110
922776991613,2cyclictest1317008-21head23:28:080
922776991613,2cyclictest1098982-21apt-key21:25:010
92277699161,2cyclictest191rcu_preempt21:30:020
922776991612,3cyclictest1007449-21kthreadcore20:18:110
92277699161,14cyclictest0-21swapper/000:10:390
2649091160,2phc2sys0-21swapper/323:53:453
2649091160,2phc2sys0-21swapper/321:15:513
2649091160,1phc2sys0-21swapper/322:06:483
922790991512,1cyclictest0-21swapper/220:40:012
922790991512,1cyclictest0-21swapper/220:03:122
92277999155,3cyclictest1010786-21kworker/u16:1+events_unbound20:33:051
92277999151,4cyclictest134050irq/121-eno121:28:411
922779991512,2cyclictest967802-21systemd-run19:45:001
922779991512,2cyclictest956862-21gltestperf19:38:081
922779991512,2cyclictest929457-21kthreadcore19:15:031
922779991512,2cyclictest1426-21gdbus22:00:011
922779991512,2cyclictest1354733-21sort23:48:111
922779991512,2cyclictest1313957-21systemd-run23:25:001
922779991512,2cyclictest1288-1atopacctd00:12:361
922779991512,2cyclictest1-21systemd00:06:581
922779991512,2cyclictest1146200-21/usr/sbin/munin21:53:171
922779991512,2cyclictest1121820-21kthreadcore21:38:111
922779991512,2cyclictest1111231-21gltestperf21:33:081
922779991512,2cyclictest1041845-21cpuspeed_turbos20:48:051
922779991512,2cyclictest0-21swapper/120:15:021
922779991512,2cyclictest0-21swapper/100:00:021
922779991511,3cyclictest1379999-21kthreadcore00:03:091
922779991511,3cyclictest1055165-21kthreadcore20:58:111
922779991511,3cyclictest0-21swapper/122:25:011
922779991510,4cyclictest1288-1atopacctd19:53:111
922776991512,2cyclictest922767-21cyclictest19:43:220
922776991512,2cyclictest29021-21rtkit-daemon19:12:330
922776991512,2cyclictest1276759-21mailstats23:03:160
922776991512,2cyclictest1034966-21cut20:40:000
92277699150,14cyclictest0-21swapper/022:27:360
2649091150,3phc2sys0-21swapper/321:10:283
2649091150,3phc2sys0-21swapper/320:13:103
2649091150,1phc2sys0-21swapper/322:12:103
2649091150,1phc2sys0-21swapper/319:56:533
922790991412,1cyclictest0-21swapper/223:53:062
922790991411,1cyclictest0-21swapper/220:28:192
922790991411,1cyclictest0-21swapper/219:35:012
922790991411,1cyclictest0-21swapper/219:30:012
92279099140,11cyclictest1385887-21chrt00:05:232
92277999143,5cyclictest1361228-21cat23:53:041
922779991412,1cyclictest1035867-21cstates20:43:051
922779991411,2cyclictest1005582-21fschecks_count20:18:081
922779991410,3cyclictest0-21swapper/122:50:021
92277699145,5cyclictest0-21swapper/020:33:430
92277699144,5cyclictest1224539-21cut22:35:010
92277699143,6cyclictest1424866-21cut00:28:100
92277699142,7cyclictest0-21swapper/020:43:040
922776991411,2cyclictest971128-21kthreadcore19:48:110
922776991411,2cyclictest957456-21kthreadcore19:38:100
922776991411,2cyclictest951357-21irqrtprio19:33:100
922776991410,3cyclictest939529-21kthreadcore19:23:120
922776991410,3cyclictest1071890-21kworker/u16:1+nfsiod00:21:140
2649091140,3phc2sys0-21swapper/321:39:293
2649091140,2phc2sys0-21swapper/321:46:573
2649091140,1phc2sys0-21swapper/322:33:393
9547792130,2sleep10-21swapper/119:33:131
922790991311,1cyclictest0-21swapper/219:13:062
922790991310,1cyclictest0-21swapper/220:23:102
922790991310,1cyclictest0-21swapper/220:18:112
922790991310,1cyclictest0-21swapper/219:58:062
92277999137,5cyclictest134050irq/121-eno123:32:401
92277999134,4cyclictest1414353-21tail00:23:051
922779991310,2cyclictest997966-21switchtime20:08:171
922779991310,2cyclictest987046-21head20:03:061
922779991310,2cyclictest971099-21kthreadcore19:48:111
922779991310,2cyclictest938575-21sh19:23:081
922779991310,2cyclictest1293236-21sh23:13:121
922779991310,2cyclictest1282990-21kthreadcore23:08:101
922779991310,2cyclictest1238549-21kthreadcore22:43:101
92277999130,3cyclictest922510-21apt-get19:10:021
92277699131,7cyclictest997234-21cut20:08:130
922776991310,2cyclictest1053970-21aten_repower_po20:58:060
2649091136,2phc2sys0-21swapper/323:41:353
2649091132,2phc2sys0-21swapper/300:38:193
2649091131,2phc2sys0-21swapper/322:05:013
2649091130,4phc2sys0-21swapper/323:18:503
2649091130,2phc2sys0-21swapper/322:58:323
2649091130,2phc2sys0-21swapper/319:39:593
922790991210,1cyclictest0-21swapper/220:53:102
2649091124,3phc2sys0-21swapper/319:53:123
2649091124,3phc2sys0-21swapper/300:25:013
2649091123,2phc2sys0-21swapper/323:02:453
2649091121,2phc2sys0-21swapper/321:23:093
2649091120,2phc2sys0-21swapper/323:38:283
2649091120,2phc2sys0-21swapper/323:32:173
2649091120,1phc2sys0-21swapper/320:05:473
2649091112,2phc2sys0-21swapper/323:20:283
2649091111,2phc2sys0-21swapper/300:32:183
2649091110,2phc2sys0-21swapper/323:49:263
2649091110,2phc2sys0-21swapper/323:12:393
2649091110,2phc2sys0-21swapper/320:53:033
2649091110,2phc2sys0-21swapper/320:40:013
2649091110,2phc2sys0-21swapper/300:13:063
2649091110,1phc2sys0-21swapper/320:15:493
2649091110,1phc2sys0-21swapper/319:21:023
2649091101,2phc2sys0-21swapper/322:48:063
2649091101,2phc2sys0-21swapper/320:58:123
2649091101,2phc2sys0-21swapper/300:05:453
2649091100,3phc2sys0-21swapper/321:55:353
2649091100,2phc2sys0-21swapper/323:26:463
2649091100,2phc2sys0-21swapper/322:50:193
2649091100,2phc2sys0-21swapper/322:22:523
2649091100,2phc2sys0-21swapper/321:41:293
2649091100,2phc2sys0-21swapper/320:43:063
2649091100,2phc2sys0-21swapper/320:22:423
2649091100,2phc2sys0-21swapper/320:04:593
2649091100,2phc2sys0-21swapper/319:48:203
2649091100,2phc2sys0-21swapper/300:17:193
2649091100,1phc2sys0-21swapper/319:29:443
264909191,2phc2sys0-21swapper/319:40:593
264909191,2phc2sys0-21swapper/319:20:013
264909191,2phc2sys0-21swapper/319:08:043
264909190,2phc2sys0-21swapper/321:50:143
264909190,2phc2sys0-21swapper/320:33:003
264909190,2phc2sys0-21swapper/320:26:023
264909190,2phc2sys0-21swapper/319:33:173
264909190,2phc2sys0-21swapper/319:13:093
264909190,1phc2sys0-21swapper/321:09:063
264909190,1phc2sys0-21swapper/320:48:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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