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2026-09-20 - 20:48
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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 Sun Sep 20, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
82849322410,2sleep30-21swapper/309:49:213
79194022410,2sleep30-21swapper/309:29:203
10596672830,0sleep01059669-21latency_hist12:00:020
7821712710,1sleep0782174-21sort09:24:200
593464992819,8cyclictest940384-21kthreadcore10:54:210
593464992417,6cyclictest886200-21/usr/sbin/munin10:24:210
593466992319,2cyclictest0-21swapper/208:55:092
593464992314,8cyclictest836022-21kthreadcore09:54:200
593464992311,6cyclictest0-21swapper/009:10:020
593464992217,4cyclictest733736-21unixbench_multi08:49:280
593464992216,5cyclictest1017714-21/usr/sbin/munin11:39:230
593464992216,5cyclictest1017714-21/usr/sbin/munin11:39:230
593464992213,6cyclictest778-21dbus-daemon11:30:030
593464992211,6cyclictest0-21swapper/009:19:200
59346599219,3cyclictest836866-21kthreadcore09:54:211
593465992118,2cyclictest778-21dbus-daemon08:05:021
593465992118,2cyclictest778-21dbus-daemon08:05:021
593465992117,3cyclictest787193-21mailstats09:24:281
593465992112,3cyclictest1004351-21kthreadcore11:29:221
593464992114,6cyclictest871850-21kthreadcore10:14:230
593464992114,6cyclictest1124419-21kernelversion12:39:180
593464992113,7cyclictest764494-21gltestperf09:14:180
593464992113,7cyclictest764494-21gltestperf09:14:180
59346599209,3cyclictest797-21polkitd11:45:011
593465992015,4cyclictest24617-21JS14:54:061
593465992011,3cyclictest1073441-21kthreadcore12:09:241
593464992017,2cyclictest912949-21cstates10:39:160
593464992017,2cyclictest761476-21diskmemload10:44:210
593464992016,3cyclictest905453-21kthreadcore10:34:210
593464992016,3cyclictest1188-21runrttasks11:24:220
593464992016,3cyclictest1031598-21kthreadcore11:44:220
593464992011,5cyclictest1075633-21kthreadcore12:09:250
593464992010,5cyclictest0-21swapper/010:59:180
59346599197,7cyclictest1129616-21idleruntime-cro12:40:001
59346599196,3cyclictest82050irq/121-eno111:09:231
593465991916,2cyclictest778-21dbus-daemon08:35:021
593465991916,2cyclictest630516-21systemd-run07:35:011
59346599191,4cyclictest910400-21awk10:35:011
593465991911,3cyclictest0-21swapper/111:48:591
59346499199,7cyclictest808493-21if_err_eno109:39:190
59346499196,6cyclictest11042372sleep012:26:130
593464991916,2cyclictest987313-21kthreadcore11:19:200
593464991916,2cyclictest881113-21kthreadcore10:19:220
593464991916,2cyclictest855426-21kthreadcore10:04:210
593464991916,2cyclictest719530-21processes08:39:260
593464991916,2cyclictest682173-21kthreadcore08:14:220
593464991916,2cyclictest656938-21kthreadcore07:54:230
593464991916,2cyclictest604917-21kthreadcore07:19:200
593464991916,2cyclictest598188-21kthreadcore07:14:220
593464991915,3cyclictest897471-21kthreadcore10:29:210
593464991915,3cyclictest817576-21irqrtprio09:44:210
593464991915,3cyclictest668303-21kthreadcore08:04:210
593464991915,3cyclictest668303-21kthreadcore08:04:210
593464991915,3cyclictest661347-21kthreadcore07:59:210
593464991913,5cyclictest593462-21cyclictest11:13:220
593464991910,8cyclictest843085-21df09:59:160
593464991910,4cyclictest0-21swapper/009:49:320
8390402180,2sleep30-21swapper/309:54:223
593466991815,1cyclictest0-21swapper/210:46:472
593466991814,2cyclictest0-21swapper/208:17:092
59346599187,3cyclictest600597-21munin-run07:15:021
593465991815,2cyclictest637425-21systemd-run07:40:011
593465991814,3cyclictest862-21gmain07:25:051
593465991813,3cyclictest842405-21acpi09:58:571
59346499189,8cyclictest968240-21kthreadcore11:09:220
59346499185,8cyclictest748325-21/usr/sbin/munin09:04:160
593464991815,2cyclictest866703-21systemd-run10:10:010
593464991815,2cyclictest813-21systemd-logind08:10:020
593464991815,2cyclictest709394-21kthreadcore08:34:210
593464991815,2cyclictest1097937-21irqrtprio12:24:200
593464991814,3cyclictest932080-21kthreadcore10:49:210
593464991814,3cyclictest801013-21kthreadcore09:34:230
593464991814,3cyclictest721038-21cpuspeed_turbos08:44:150
593464991814,3cyclictest701191-21irqcore08:29:220
593464991814,3cyclictest621586-21kthreadcore07:29:220
593464991812,5cyclictest956838-21cstates11:04:170
593464991811,6cyclictest0-21swapper/012:33:570
59346499181,11cyclictest0-21swapper/012:13:580
593464991810,5cyclictest1010750-21ssh11:34:200
2213291180,2phc2sys0-21swapper/310:39:213
2213291180,2phc2sys0-21swapper/309:31:313
59346699171,8cyclictest0-21swapper/208:24:002
593466991715,1cyclictest0-21swapper/209:39:232
59346599178,3cyclictest826996-21kthreadcore09:49:201
59346599177,3cyclictest0-21swapper/112:33:031
59346599176,6cyclictest0-21swapper/110:11:091
59346599176,3cyclictest0-21swapper/112:11:351
59346599176,3cyclictest0-21swapper/111:59:271
59346599176,1cyclictest678752-21grep08:10:011
59346599174,4cyclictest677780-21systemd-journal09:00:011
59346599174,2cyclictest983012-21cpuspeed_turbos11:19:141
59346599173,5cyclictest1099020-21cut12:24:211
593465991714,2cyclictest770269-21cron09:15:011
593465991714,2cyclictest770269-21cron09:15:011
593465991714,2cyclictest727989-21cpuspeed_turbos08:49:161
593465991714,2cyclictest720256-21systemd-run08:40:011
593465991714,2cyclictest672434-21in:imuxsock10:43:351
593465991714,2cyclictest24610-21gmain09:17:171
593465991713,3cyclictest940521-21kthreadcore10:54:211
593465991713,3cyclictest896434-21kthreadcore10:29:211
593465991713,3cyclictest704555-21kthreadcore08:29:241
593465991713,3cyclictest1012135-21kthreadcore11:34:211
59346499179,7cyclictest866708-21kworker/u16:1-ext4-rsv-conversion12:05:020
59346499174,3cyclictest1070662-21kworker/u16:3+xprtiod12:16:020
593464991714,2cyclictest697303-21kthreadcore08:24:230
593464991714,2cyclictest640764-21kthreadcore07:44:210
593464991714,2cyclictest1036662-21irqrtprio11:49:210
593464991713,3cyclictest624804-21cut07:34:190
2447398170,2rtkit-daemon0-21swapper/107:46:131
2213291170,2phc2sys0-21swapper/312:29:463
593466991614,1cyclictest0-21swapper/210:40:022
593466991614,1cyclictest0-21swapper/207:44:172
593466991613,1cyclictest0-21swapper/209:35:012
593466991612,2cyclictest0-21swapper/212:15:592
59346599165,7cyclictest82050irq/121-eno110:06:071
59346599165,3cyclictest0-21swapper/109:36:021
59346599164,2cyclictest761476-21diskmemload10:04:131
59346599164,2cyclictest593290-21latency_hist07:10:011
59346599164,1cyclictest82050irq/121-eno108:18:581
59346599163,5cyclictest0-21swapper/112:15:181
593465991612,3cyclictest997360-21pmu-power11:24:251
593465991612,3cyclictest963183-21latency_hist11:05:021
593465991612,3cyclictest882590-21kthreadcore10:19:231
593465991612,3cyclictest821726-21kthreadcore09:44:241
593465991612,3cyclictest750188-21kthreadcore09:04:201
593465991612,3cyclictest722077-21kthreadcore08:44:201
593465991612,3cyclictest653462-21kthreadcore07:54:211
593465991612,3cyclictest606459-21kthreadcore07:19:221
593465991611,4cyclictest778-21dbus-daemon12:30:011
59346599160,7cyclictest1017714-21/usr/sbin/munin11:39:191
59346599160,7cyclictest1017714-21/usr/sbin/munin11:39:191
59346599160,3cyclictest788905-21ssh09:26:361
593464991613,2cyclictest742739-21kthreadcore08:59:220
59346499161,2cyclictest0-21swapper/009:28:580
59346499160,4cyclictest761476-21diskmemload11:52:120
59346499160,4cyclictest761476-21diskmemload11:52:120
2213291160,7phc2sys0-21swapper/308:18:583
2213291160,5phc2sys0-21swapper/308:33:583
2213291160,2phc2sys0-21swapper/311:37:333
2213291160,2phc2sys0-21swapper/311:37:333
59346699151,9cyclictest0-21swapper/211:33:582
59346699151,9cyclictest0-21swapper/211:13:572
593466991513,1cyclictest0-21swapper/211:40:032
593466991513,1cyclictest0-21swapper/211:40:032
593466991512,1cyclictest0-21swapper/212:31:182
593466991512,1cyclictest0-21swapper/212:24:562
593466991512,1cyclictest0-21swapper/212:04:162
593466991512,1cyclictest0-21swapper/210:15:012
593466991512,1cyclictest0-21swapper/210:03:402
593466991512,1cyclictest0-21swapper/209:54:202
593466991512,1cyclictest0-21swapper/207:54:202
593466991512,1cyclictest0-21swapper/207:39:052
593466991511,2cyclictest0-21swapper/207:14:212
59346599152,5cyclictest0-21swapper/110:22:041
593465991512,2cyclictest980710-21systemctl11:15:011
593465991512,2cyclictest949723-21kthreadcore10:59:211
593465991512,2cyclictest805608-21systemd-run09:35:021
593465991512,2cyclictest755318-21aten_repower_en09:09:011
593465991512,2cyclictest616595-21latency_hist07:25:021
593465991512,2cyclictest1-21systemd10:50:031
593465991511,3cyclictest736731-21kthreadcore08:54:211
593465991511,3cyclictest679537-21aten_repower_vo08:14:131
593465991511,3cyclictest659984-21kernelversion07:59:201
593465991511,3cyclictest1067051-21kthreadcore12:04:221
593465991510,3cyclictest915806-21kthreadcore10:39:221
59346499157,4cyclictest739329-21cut08:54:230
593464991512,2cyclictest61901-21gmain07:35:300
593464991511,3cyclictest615108-21kthreadcore07:24:220
2213291150,3phc2sys0-21swapper/311:53:103
2213291150,3phc2sys0-21swapper/311:53:103
2213291150,2phc2sys0-21swapper/310:03:333
2213291150,2phc2sys0-21swapper/309:13:193
2213291150,2phc2sys0-21swapper/309:13:193
2213291150,2phc2sys0-21swapper/308:37:013
2213291150,2phc2sys0-21swapper/307:18:093
59346699145,4cyclictest0-21swapper/208:33:592
59346699141,9cyclictest0-21swapper/210:18:582
593466991412,1cyclictest0-21swapper/209:29:212
593466991412,1cyclictest0-21swapper/209:20:032
593466991411,2cyclictest0-21swapper/211:09:222
593466991411,2cyclictest0-21swapper/209:24:242
593466991411,1cyclictest0-21swapper/212:25:532
593466991411,1cyclictest0-21swapper/212:06:412
593466991411,1cyclictest0-21swapper/211:49:032
593466991411,1cyclictest0-21swapper/210:59:182
593466991411,1cyclictest0-21swapper/210:44:122
593466991411,1cyclictest0-21swapper/210:30:012
593466991411,1cyclictest0-21swapper/209:46:432
593466991411,1cyclictest0-21swapper/209:41:092
593466991411,1cyclictest0-21swapper/208:04:222
593466991411,1cyclictest0-21swapper/208:04:222
593466991411,1cyclictest0-21swapper/207:48:042
593466991411,1cyclictest0-21swapper/207:32:052
593466991410,2cyclictest0-21swapper/211:26:332
593466991410,2cyclictest0-21swapper/209:59:212
593466991410,2cyclictest0-21swapper/208:09:282
59346699140,12cyclictest0-21swapper/212:11:562
59346599142,2cyclictest82050irq/121-eno111:53:581
59346599142,2cyclictest82050irq/121-eno111:53:581
593465991412,2cyclictest351ktimers/108:23:591
59346499144,5cyclictest644865-21/usr/sbin/munin07:49:190
593464991411,2cyclictest778-21dbus-daemon07:10:020
593464991410,3cyclictest686892-21fschecks_count08:19:170
2213291140,6phc2sys0-21swapper/307:23:593
2213291140,4phc2sys0-21swapper/310:14:003
2213291140,3phc2sys0-21swapper/312:24:093
2213291140,3phc2sys0-21swapper/311:41:463
2213291140,2phc2sys0-21swapper/311:57:113
2213291140,2phc2sys0-21swapper/311:03:183
2213291140,2phc2sys0-21swapper/310:20:223
2213291140,2phc2sys0-21swapper/309:40:123
2213291140,1phc2sys0-21swapper/312:10:473
59346699139,2cyclictest0-21swapper/211:24:222
59346699139,2cyclictest0-21swapper/208:38:092
59346699131,7cyclictest0-21swapper/211:53:582
59346699131,7cyclictest0-21swapper/211:53:582
593466991311,1cyclictest0-21swapper/212:39:192
593466991311,1cyclictest0-21swapper/211:44:162
593466991311,1cyclictest0-21swapper/211:15:332
593466991311,1cyclictest0-21swapper/210:54:212
593466991311,1cyclictest0-21swapper/208:49:252
593466991311,1cyclictest0-21swapper/208:29:252
593466991311,1cyclictest0-21swapper/207:59:222
593466991311,1cyclictest0-21swapper/207:20:032
593466991311,1cyclictest0-21swapper/207:20:022
593466991310,1cyclictest0-21swapper/211:57:092
593466991310,1cyclictest0-21swapper/209:04:202
593466991310,1cyclictest0-21swapper/208:54:212
593466991310,1cyclictest0-21swapper/208:14:202
593466991310,1cyclictest0-21swapper/207:29:212
2213291131,5phc2sys0-21swapper/311:18:573
2213291130,3phc2sys0-21swapper/308:59:003
2213291130,2phc2sys0-21swapper/311:13:443
2213291130,2phc2sys0-21swapper/309:57:083
2213291130,2phc2sys0-21swapper/309:35:383
2213291130,2phc2sys0-21swapper/307:58:593
2213291130,1phc2sys0-21swapper/308:03:093
2213291130,1phc2sys0-21swapper/308:03:093
59346699129,2cyclictest0-21swapper/210:24:202
59346699129,1cyclictest0-21swapper/211:01:342
59346699129,1cyclictest0-21swapper/208:44:222
593466991210,1cyclictest0-21swapper/210:34:232
593466991210,1cyclictest0-21swapper/210:09:222
593466991210,1cyclictest0-21swapper/209:12:372
593466991210,1cyclictest0-21swapper/209:12:372
593466991210,1cyclictest0-21swapper/209:09:212
2213291124,3phc2sys0-21swapper/312:03:113
2213291122,2phc2sys0-21swapper/310:50:353
2213291121,4phc2sys0-21swapper/312:18:583
2213291120,3phc2sys0-21swapper/309:00:513
2213291120,2phc2sys0-21swapper/311:31:173
2213291120,2phc2sys0-21swapper/311:23:593
2213291120,2phc2sys0-21swapper/310:48:233
2213291120,2phc2sys0-21swapper/310:30:153
2213291120,2phc2sys0-21swapper/310:26:303
2213291120,2phc2sys0-21swapper/309:24:013
2213291120,2phc2sys0-21swapper/308:22:003
2213291120,2phc2sys0-21swapper/307:48:593
2213291120,1phc2sys0-21swapper/310:41:173
2213291120,1phc2sys0-21swapper/309:08:103
2213291112,2phc2sys0-21swapper/312:38:273
2213291111,5phc2sys0-21swapper/307:53:593
2213291111,4phc2sys0-21swapper/307:08:593
2213291110,5phc2sys0-21swapper/307:34:003
2213291110,2phc2sys0-21swapper/312:30:583
2213291110,2phc2sys0-21swapper/310:05:143
2213291110,2phc2sys0-21swapper/308:43:293
6791302100,1sleep30-21swapper/308:11:053
2213291102,3phc2sys0-21swapper/309:18:513
2213291100,2phc2sys0-21swapper/312:05:363
2213291100,2phc2sys0-21swapper/311:48:213
2213291100,2phc2sys0-21swapper/310:17:283
2213291100,1phc2sys0-21swapper/308:50:303
2213291100,1phc2sys0-21swapper/308:07:493
221329192,2phc2sys0-21swapper/310:57:573
221329191,3phc2sys0-21swapper/311:06:423
221329191,3phc2sys0-21swapper/307:39:183
221329191,2phc2sys0-21swapper/307:27:093
221329190,3phc2sys0-21swapper/308:49:223
221329190,2phc2sys0-21swapper/311:25:163
221329190,2phc2sys0-21swapper/308:29:093
221329190,2phc2sys0-21swapper/307:43:243
221329180,2phc2sys0-21swapper/307:10:063
5934669975,1cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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