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2026-05-14 - 17:40
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Thu May 14, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
126720321640,2sleep20-21swapper/209:15:162
13302102850,1sleep00-21swapper/009:58:150
12735062720,1sleep01273507-21grep09:20:160
14522832690,1sleep11452282-21ssh11:18:331
12851382350,2sleep21285128-21turbostat09:30:002
15210242310,1sleep10-21swapper/112:03:261
1100472992516,5cyclictest1364374-21kthreadcore10:20:170
1100473992418,2cyclictest134050irq/121-eno109:05:091
1100472992419,3cyclictest3851875-21systemd-journal07:25:000
1100473992320,2cyclictest1326-21systemd-logind07:15:021
1100473992314,5cyclictest1996-21runrttasks11:02:371
1100473992314,5cyclictest1996-21runrttasks11:02:371
1100472992314,5cyclictest0-21swapper/012:11:020
383433398220,8rtkit-daemon3851704-21mta-sts-daemon11:25:180
26490912211,3phc2sys0-21swapper/312:20:013
14910332220,2sleep30-21swapper/311:45:003
110047399224,12cyclictest1547917-21cut12:20:161
110047399224,12cyclictest1547917-21cut12:20:161
1100473992216,2cyclictest17350irq/127-ahci[0000:00:17.0]08:25:011
1100473992210,3cyclictest3834328-21sendmail-mta11:08:311
1100472992219,2cyclictest1191292-21/usr/sbin/munin08:20:000
1100472992213,5cyclictest1134873-21tail07:35:080
1100472992210,6cyclictest0-21swapper/009:25:160
2649191210,2ptp4l0-21swapper/311:50:173
1100474992118,1cyclictest0-21swapper/209:35:002
1100474992118,1cyclictest0-21swapper/209:35:002
1100474992118,1cyclictest0-21swapper/208:50:012
110047399218,3cyclictest0-21swapper/112:35:091
1100473992112,3cyclictest1401156-21irqrtprio10:45:151
1100473992110,6cyclictest0-21swapper/112:00:021
1100473992110,3cyclictest1479937-21kthreadcore11:35:151
110047299219,4cyclictest1236272-21tail08:55:100
110047299218,4cyclictest1308748-21cstates09:45:110
110047299217,7cyclictest0-21swapper/011:40:080
1100472992111,6cyclictest0-21swapper/011:05:200
1100472992111,6cyclictest0-21swapper/009:36:550
1100472992111,5cyclictest0-21swapper/012:35:100
110047399208,4cyclictest0-21swapper/110:25:171
110047399204,11cyclictest1122413-21aten2.4-expect07:25:091
1100473992017,2cyclictest3827634-1atopacctd10:02:531
1100473992017,2cyclictest1290-21dbus-daemon09:45:001
1100473992017,2cyclictest1121911-21cron07:25:001
1100473992017,2cyclictest0-21swapper/111:45:021
1100473992016,3cyclictest1226194-21kthreadcore08:45:161
1100473992016,3cyclictest1163078-21kthreadcore07:55:161
1100473992011,3cyclictest1996-21runrttasks09:11:221
1100473992010,3cyclictest1441229-21kthreadcore11:10:141
1100473992010,3cyclictest1348243-21kthreadcore10:10:151
1100473992010,2cyclictest1312569-21kthreadcore09:45:171
110047299209,6cyclictest1519324-21grep12:00:190
110047299209,6cyclictest0-21swapper/010:45:140
110047299207,4cyclictest0-21swapper/011:15:160
110047299206,5cyclictest0-21swapper/012:20:120
110047299206,5cyclictest0-21swapper/012:20:120
110047299205,5cyclictest0-21swapper/010:55:110
1100472992017,2cyclictest1270155-21systemd09:20:030
1100472992016,3cyclictest1473781-21cat11:30:200
110047299201,4cyclictest1235830-21wc08:55:000
2649091190,2phc2sys0-21swapper/311:38:293
1100474991917,1cyclictest0-21swapper/207:20:022
110047399198,6cyclictest0-21swapper/111:35:011
110047399195,6cyclictest1420601-21cat10:55:221
110047399194,3cyclictest1996-21runrttasks11:50:311
110047399193,10cyclictest1299587-21sshd09:37:501
1100473991916,2cyclictest1562812-21kthreadcore12:30:141
1100473991916,2cyclictest1522066-21tail12:05:091
1100473991916,2cyclictest1262892-21cpuspeed_turbos09:15:101
1100473991915,3cyclictest1241672-21unixbench_singl08:55:241
1100473991915,1cyclictest14605731systemd-run11:25:011
1100473991914,4cyclictest1100471-21cyclictest08:25:171
1100473991911,3cyclictest0-21swapper/110:45:021
1100473991911,2cyclictest1996-21runrttasks11:48:211
110047299198,5cyclictest1557804-21unixbench-2d12:25:210
110047299197,5cyclictest0-21swapper/010:30:100
110047299192,7cyclictest1524402-21kthreadcore12:05:140
110047299191,8cyclictest1353877-21sh10:15:000
110047299191,8cyclictest1301427-21grep09:40:120
1100472991916,2cyclictest1361603-21/usr/sbin/munin10:20:010
1100472991915,2cyclictest0-21swapper/009:10:020
1100472991910,3cyclictest0-21swapper/010:44:050
2649091180,2phc2sys0-21swapper/309:40:083
1100474991815,1cyclictest0-21swapper/209:50:002
1100474991815,1cyclictest0-21swapper/208:25:012
110047399183,4cyclictest1210569-1cat08:35:011
110047399183,4cyclictest0-21swapper/112:26:101
1100473991816,1cyclictest1178870-21systemctl08:10:011
1100473991815,2cyclictest1213892-21kthreadcore08:35:161
1100473991815,2cyclictest1169348-21kthreadcore08:00:151
1100473991815,2cyclictest1114921-21unixbench_multi07:15:221
110047399181,4cyclictest1179001-21apt-get08:10:071
1100473991814,3cyclictest1232743-21kthreadcore08:50:161
1100473991814,3cyclictest1221963-21needreboot08:40:181
1100473991814,3cyclictest1144010-21kthreadcore07:40:161
1100473991810,3cyclictest0-21swapper/111:25:551
1100473991810,3cyclictest0-21swapper/110:50:081
1100473991810,2cyclictest1996-21runrttasks10:20:441
110047299183,3cyclictest1399693-21kworker/u16:1+events_unbound12:30:070
110047299181,7cyclictest1148220-21if_enp1s0.807:45:110
110047299181,7cyclictest0-21swapper/010:50:110
1100472991815,2cyclictest1259339-21kthreadcore09:10:210
1100472991815,2cyclictest1223212-21munin-plugin-st08:45:020
1100472991815,2cyclictest1197856-21/usr/sbin/munin08:25:000
1100472991815,2cyclictest0-21swapper/012:00:010
1100472991814,2cyclictest1292755-21latency_hist09:35:000
1100472991814,2cyclictest1292755-21latency_hist09:35:000
1100472991810,4cyclictest1179128-21aten2.4-expect08:10:090
13706312170,2sleep20-21swapper/210:25:152
1100474991714,1cyclictest0-21swapper/211:25:062
1100474991714,1cyclictest0-21swapper/211:15:182
1100474991714,1cyclictest0-21swapper/208:35:142
1100474991714,1cyclictest0-21swapper/207:55:002
110047499170,3cyclictest11664412sleep208:00:072
110047399176,6cyclictest3851705-21mta-sts-daemon10:39:371
1100473991714,2cyclictest1341838-21kthreadcore10:05:131
1100473991714,2cyclictest1290-21dbus-daemon07:50:001
1100473991714,2cyclictest1285635-21aten_repower_vo09:30:091
1100473991714,2cyclictest1285635-21aten_repower_vo09:30:081
1100473991714,2cyclictest1278959-21irqcore09:25:151
1100473991713,3cyclictest1186593-21kthreadcore08:15:131
1100473991713,3cyclictest1158666-21kthreadcore07:50:161
1100473991712,4cyclictest1318441-21kthreadcore09:50:141
110047299177,4cyclictest1996-21runrttasks10:07:310
110047299176,6cyclictest0-21swapper/011:35:080
110047299176,2cyclictest0-21swapper/011:50:020
110047299174,6cyclictest1385573-21if_enp1s0.810:35:130
110047299171,8cyclictest1458966-21rm11:20:450
110047299171,8cyclictest1321803-21taskset09:50:570
1100472991714,2cyclictest3827634-1atopacctd08:50:010
1100472991714,2cyclictest1160075-21systemd07:55:010
1100472991713,3cyclictest1107035-21sort07:15:010
110047299170,7cyclictest1537871-21hddtemp_smartct12:15:110
110047299170,7cyclictest1331199-21ssh10:00:070
2649091161,4phc2sys0-21swapper/309:25:093
2649091160,2phc2sys0-21swapper/310:35:313
2649091160,1phc2sys0-21swapper/310:32:233
1100474991614,1cyclictest0-21swapper/210:50:022
1100474991614,1cyclictest0-21swapper/210:05:132
1100474991613,1cyclictest0-21swapper/207:25:012
1100473991613,2cyclictest1538136-21irqcore12:15:131
1100473991613,2cyclictest1532052-21kthreadcore12:10:151
1100473991613,2cyclictest1379002-21kthreadcore10:30:151
1100473991613,2cyclictest1358800-21kthreadcore10:15:161
1100473991613,2cyclictest1323764-21cpu09:55:101
1100473991613,2cyclictest1242588-21aten_repower_vo09:00:111
1100473991613,2cyclictest1134894-21aten_repower_fr07:35:081
1100473991613,2cyclictest1131419-21kthreadcore07:30:151
110047299168,2cyclictest0-21swapper/011:10:100
110047299166,2cyclictest0-21swapper/011:00:080
110047299166,2cyclictest0-21swapper/011:00:080
110047299165,2cyclictest1499053-21/usr/sbin/munin11:50:180
110047299165,2cyclictest1176880-21kthreadcore08:05:160
110047299164,7cyclictest0-21swapper/008:25:220
110047299164,11cyclictest1248150-21sshd09:02:500
110047299162,5cyclictest1128688-21aten2.4-expect07:30:090
110047299161,8cyclictest1204417-21/usr/sbin/munin08:30:110
110047299161,8cyclictest1167290-21/usr/sbin/munin08:00:120
110047299161,8cyclictest1141094-21/usr/sbin/munin07:40:110
1100472991613,2cyclictest0-21swapper/007:20:010
110047299161,2cyclictest241rcuc/007:25:150
2649091151,2phc2sys0-21swapper/312:28:393
2649091151,2phc2sys0-21swapper/311:55:083
2649091150,3phc2sys0-21swapper/312:08:573
2649091150,2phc2sys0-21swapper/309:57:113
2649091150,1phc2sys0-21swapper/311:47:583
2649091150,1phc2sys0-21swapper/308:10:173
1100474991512,1cyclictest0-21swapper/212:15:152
1100474991512,1cyclictest0-21swapper/212:00:192
1100474991512,1cyclictest0-21swapper/211:50:172
1100474991512,1cyclictest0-21swapper/210:40:092
1100474991512,1cyclictest0-21swapper/209:10:182
1100474991512,1cyclictest0-21swapper/209:05:012
1100474991511,2cyclictest0-21swapper/210:20:152
110047499150,4cyclictest13601432sleep210:16:062
110047299151,7cyclictest1370276-21smartctl10:25:140
110047299151,7cyclictest1161017-21/usr/sbin/munin07:55:130
110047299150,7cyclictest1211263-21diskstats08:35:110
2649091141,2phc2sys0-21swapper/312:04:503
2649091141,2phc2sys0-21swapper/310:05:543
2649091140,3phc2sys0-21swapper/311:00:253
2649091140,3phc2sys0-21swapper/311:00:253
2649091140,2phc2sys0-21swapper/310:21:013
2649091140,2phc2sys0-21swapper/309:51:383
1100474991412,1cyclictest0-21swapper/212:35:132
1100474991412,1cyclictest0-21swapper/210:50:202
1100474991412,1cyclictest0-21swapper/210:40:012
1100474991411,1cyclictest0-21swapper/212:10:152
1100474991411,1cyclictest0-21swapper/211:38:562
1100474991411,1cyclictest0-21swapper/211:30:152
1100474991411,1cyclictest0-21swapper/211:20:112
1100474991411,1cyclictest0-21swapper/211:10:182
1100474991411,1cyclictest0-21swapper/211:00:162
1100474991411,1cyclictest0-21swapper/211:00:152
1100474991411,1cyclictest0-21swapper/210:30:142
1100474991411,1cyclictest0-21swapper/210:10:122
1100474991411,1cyclictest0-21swapper/209:52:392
1100474991411,1cyclictest0-21swapper/209:40:092
1100474991411,1cyclictest0-21swapper/209:25:002
1100474991411,1cyclictest0-21swapper/208:55:172
1100474991411,1cyclictest0-21swapper/208:55:012
1100474991411,1cyclictest0-21swapper/208:05:082
1100474991411,1cyclictest0-21swapper/207:55:162
1100474991411,1cyclictest0-21swapper/207:40:502
1100473991411,2cyclictest1275877-21unixbench_singl09:20:221
2649091133,2phc2sys0-21swapper/312:31:593
2649091131,2phc2sys0-21swapper/310:54:003
2649091131,2phc2sys0-21swapper/307:21:143
2649091130,2phc2sys0-21swapper/310:14:163
2649091130,1phc2sys0-21swapper/308:19:243
110047499139,2cyclictest0-21swapper/207:25:162
1100474991311,1cyclictest0-21swapper/212:25:362
1100474991311,1cyclictest0-21swapper/210:58:052
1100474991311,1cyclictest0-21swapper/209:35:142
1100474991311,1cyclictest0-21swapper/208:10:152
1100474991310,2cyclictest0-21swapper/207:35:152
1100474991310,1cyclictest0-21swapper/212:30:102
1100474991310,1cyclictest0-21swapper/212:20:152
1100474991310,1cyclictest0-21swapper/212:20:142
1100474991310,1cyclictest0-21swapper/211:55:122
1100474991310,1cyclictest0-21swapper/211:45:162
1100474991310,1cyclictest0-21swapper/211:42:332
1100474991310,1cyclictest0-21swapper/210:00:192
1100474991310,1cyclictest0-21swapper/209:05:142
110047299133,2cyclictest1100516-21cat07:10:010
2649091127,1phc2sys0-21swapper/309:18:513
2649091123,2phc2sys0-21swapper/310:19:373
2649091122,3phc2sys0-21swapper/307:44:183
2649091121,4phc2sys0-21swapper/310:25:093
2649091121,2phc2sys0-21swapper/312:35:083
2649091121,2phc2sys0-21swapper/311:19:013
2649091121,2phc2sys0-21swapper/308:53:193
2649091120,3phc2sys0-21swapper/308:25:093
2649091120,2phc2sys0-21swapper/310:04:273
2649091120,2phc2sys0-21swapper/309:49:303
2649091120,2phc2sys0-21swapper/308:04:023
110047499129,1cyclictest0-21swapper/212:07:562
110047499129,1cyclictest0-21swapper/208:30:472
110047499129,1cyclictest0-21swapper/208:25:102
110047499129,1cyclictest0-21swapper/208:15:142
1100474991210,1cyclictest0-21swapper/209:55:162
1100474991210,1cyclictest0-21swapper/207:30:142
1100474991210,1cyclictest0-21swapper/207:10:162
2649091111,4phc2sys0-21swapper/311:10:063
2649091111,2phc2sys0-21swapper/310:40:453
2649091110,2phc2sys0-21swapper/311:30:233
2649091110,2phc2sys0-21swapper/311:27:143
2649091110,2phc2sys0-21swapper/310:55:323
2649091110,2phc2sys0-21swapper/309:30:383
2649091110,2phc2sys0-21swapper/309:30:383
2649091110,2phc2sys0-21swapper/308:37:403
2649091110,2phc2sys0-21swapper/307:35:083
2649091110,1phc2sys0-21swapper/307:57:523
2649091110,1phc2sys0-21swapper/307:48:403
2649091110,1phc2sys0-21swapper/307:17:053
110047499119,1cyclictest0-21swapper/211:08:462
110047499118,2cyclictest0-21swapper/208:40:162
110047499111,7cyclictest1100475-21taskset07:10:012
2649091103,2phc2sys0-21swapper/310:49:393
2649091103,2phc2sys0-21swapper/309:35:143
2649091102,2phc2sys0-21swapper/308:58:163
2649091101,2phc2sys0-21swapper/308:40:123
2649091101,2phc2sys0-21swapper/307:31:123
2649091101,2phc2sys0-21swapper/307:05:113
2649091100,2phc2sys0-21swapper/312:10:233
2649091100,2phc2sys0-21swapper/311:21:583
2649091100,2phc2sys0-21swapper/311:06:183
2649091100,2phc2sys0-21swapper/309:11:183
2649091100,2phc2sys0-21swapper/307:25:513
2649091100,1phc2sys0-21swapper/308:32:113
110047499101,7cyclictest1147363-21taskset07:45:032
110047399105,4cyclictest1100483-21systemd-run07:10:021
264909191,2phc2sys0-21swapper/307:10:083
264909190,2phc2sys0-21swapper/312:20:093
264909190,2phc2sys0-21swapper/312:20:093
264909190,2phc2sys0-21swapper/309:20:163
264909190,2phc2sys0-21swapper/309:05:093
264909190,2phc2sys0-21swapper/309:05:023
264909190,2phc2sys0-21swapper/308:45:173
264909190,2phc2sys0-21swapper/308:20:213
264909190,2phc2sys0-21swapper/308:05:103
264909190,2phc2sys0-21swapper/307:50:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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