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2025-12-22 - 20:26
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Mon Dec 22, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
385299299221,10cyclictest3879489-21latency_hist07:30:010
3852992992118,2cyclictest49305-21idleruntime-cro12:35:010
3852992992118,2cyclictest4108952-21munin-plugin-st10:40:000
3852992992118,2cyclictest3993893-21apt09:05:000
3852994992018,1cyclictest0-21swapper/207:40:012
3852992992017,2cyclictest1329-21rs:main0
2649091200,2phc2sys0-21swapper/307:23:253
3852994991917,1cyclictest0-21swapper/211:30:022
3852994991916,1cyclictest0-21swapper/210:00:002
3852993991916,2cyclictest4072721-21gpgconf10:10:011
3852993991916,2cyclictest3963932-21latency_hist08:40:011
3852993991916,2cyclictest3867272-21systemd-run07:20:001
3852994991815,1cyclictest0-21swapper/211:15:002
3852994991810,5cyclictest0-21swapper/211:10:012
3852992991815,2cyclictest1-21systemd09:25:010
385299299181,1cyclictest4170239-21apt-get11:33:240
3852994991714,1cyclictest0-21swapper/212:25:012
3852994991714,1cyclictest0-21swapper/209:50:002
3852993991714,2cyclictest4102925-21cron10:35:001
3852993991714,2cyclictest37016-21/usr/sbin/munin12:25:011
3852993991714,2cyclictest1326-21systemd-logind08:25:021
3852992991715,1cyclictest0-21swapper/010:20:010
3852992991714,2cyclictest1286-21avahi-daemon08:25:010
3852992991714,2cyclictest0-21swapper/007:40:010
3852992991713,2cyclictest4169837-21latency_hist11:30:020
3852992991713,2cyclictest0-21swapper/007:20:020
3852994991614,1cyclictest0-21swapper/208:05:022
3852994991613,1cyclictest0-21swapper/210:18:312
3852994991613,1cyclictest0-21swapper/208:55:002
3852994991613,1cyclictest0-21swapper/208:20:012
3852994991613,1cyclictest0-21swapper/208:00:012
385299499161,11cyclictest0-21swapper/212:30:012
385299399169,2cyclictest0-21swapper/112:38:271
385299399165,6cyclictest3853110-21systemd-run07:10:021
3852993991614,1cyclictest0-21swapper/111:00:011
3852993991613,2cyclictest4054541-21dump-pmu-power09:55:001
3852993991613,2cyclictest4024318-21apt-key09:30:011
3852993991613,2cyclictest3914967-21phc2sys-jitter07:58:341
3852993991613,2cyclictest28938-21cron10:40:001
3852993991613,2cyclictest1326-21systemd-logind11:15:001
3852993991612,3cyclictest1327-21in:imuxsock08:55:011
3852993991612,3cyclictest1313-21gmain11:35:011
3852992991613,2cyclictest4096918-21perf10:30:000
3852992991613,2cyclictest4072861-21sh10:10:010
3852992991613,2cyclictest1286-21avahi-daemon10:50:010
3852992991613,2cyclictest0-21swapper/011:10:010
3852992991612,2cyclictest3909831-21systemd-run07:55:020
385299299160,14cyclictest3963797-21ls08:40:010
385299299160,13cyclictest51170-21kthreadcore12:38:320
2649091160,5phc2sys0-21swapper/311:13:323
3852994991512,1cyclictest0-21swapper/211:58:302
3852994991512,1cyclictest0-21swapper/210:48:362
3852994991512,1cyclictest0-21swapper/209:30:012
3852994991512,1cyclictest0-21swapper/209:13:362
3852994991512,1cyclictest0-21swapper/207:13:372
385299399155,5cyclictest1290-21dbus-daemon09:40:021
385299399153,5cyclictest0-21swapper/112:18:261
3852993991512,2cyclictest3921318-21timerandwakeup08:03:381
3852993991512,2cyclictest17456-21mailstats12:03:371
3852993991512,2cyclictest1313-21gmain09:20:021
3852993991512,2cyclictest1290-21dbus-daemon11:20:001
3852993991512,2cyclictest0-21swapper/111:40:011
3852993991511,3cyclictest4182385-21aten_repower_en11:43:251
3852993991511,3cyclictest3990813-21kthreadcore09:03:321
385299299155,6cyclictest0-21swapper/011:44:150
3852992991512,2cyclictest43427-21systemd-run12:30:010
3852992991512,2cyclictest4127033-21sh10:55:000
3852992991512,2cyclictest3983136-21gltestperf08:58:290
3852992991512,2cyclictest3852989-21cyclictest10:43:340
3852992991512,2cyclictest3852989-21cyclictest08:18:300
385299299151,13cyclictest4133056-21idleruntime-cro11:00:010
3852992991511,3cyclictest4060629-21systemd10:00:010
3852992991511,3cyclictest30762-21apt-config12:20:000
3852992991511,2cyclictest4090937-21perf10:25:000
3852992991510,4cyclictest1288-1atopacctd09:48:250
2902298150,2rtkit-daemon0-21swapper/109:55:201
3852994991412,1cyclictest0-21swapper/209:45:012
3852994991411,1cyclictest0-21swapper/211:48:342
3852994991411,1cyclictest0-21swapper/209:33:322
3852994991411,1cyclictest0-21swapper/208:28:352
3852994991411,1cyclictest0-21swapper/207:48:282
3852994991411,1cyclictest0-21swapper/207:28:322
3852994991410,1cyclictest0-21swapper/208:43:322
385299499140,7cyclictest0-21swapper/210:43:262
385299399147,5cyclictest257-21systemd-journal12:35:011
3852993991412,1cyclictest3982788-21cstates08:58:271
3852993991412,1cyclictest3852989-21cyclictest07:45:011
3852993991412,1cyclictest29021-21rtkit-daemon08:49:421
3852993991411,2cyclictest4168624-21needreboot11:28:331
3852993991411,2cyclictest4142978-21kthreadcore11:08:331
3852993991411,2cyclictest4137454-21kthreadcore11:03:321
3852993991411,2cyclictest4117492-21kthreadcore10:48:321
3852993991411,2cyclictest4074075-21fschecks_time10:13:271
3852993991411,2cyclictest4047050-21kthreadcore09:48:331
3852993991411,2cyclictest4037826-21gltestperf09:43:291
3852993991411,2cyclictest4027467-21kthreadcore09:33:331
3852993991411,2cyclictest3935098-21if_enp1s008:18:301
3852993991411,2cyclictest3852989-21cyclictest08:33:311
3852993991411,2cyclictest20305-21tr12:13:301
3852993991410,3cyclictest4192716-21kthreadcore11:48:341
3852993991410,3cyclictest1288-1atopacctd07:33:331
385299299147,1cyclictest0-21swapper/008:03:260
385299299145,5cyclictest0-21swapper/011:20:200
385299299145,3cyclictest3873609-21munin-run07:25:010
385299299144,5cyclictest3898318-21aten_repower_po07:48:270
385299299141,7cyclictest1-21systemd09:15:010
3852992991411,2cyclictest4146585-21gltestperf11:13:300
3852992991411,2cyclictest4134637-21gltestperf11:03:280
3852992991411,2cyclictest4078551-21timerwakeupswit10:13:360
3852992991411,2cyclictest4066109-21switchtime10:03:370
3852992991411,2cyclictest3952851-21cstates08:33:270
3852992991411,2cyclictest3911165-21tr07:58:300
3852992991411,2cyclictest12189-21latency_hist12:00:020
3852992991411,2cyclictest0-21swapper/007:10:020
3852992991411,1cyclictest0-21swapper/009:35:010
3852992991410,3cyclictest4329-21kthreadcore11:53:320
3852992991410,3cyclictest4191197-21kthreadcore11:48:340
3852992991410,3cyclictest3997192-21kthreadcore09:08:310
3852992991410,3cyclictest3977680-21kernelversion08:53:330
3852992991410,3cyclictest3949108-21kthreadcore08:28:310
3852994991311,1cyclictest0-21swapper/212:35:012
3852994991311,1cyclictest0-21swapper/211:33:242
3852994991311,1cyclictest0-21swapper/211:18:292
3852994991311,1cyclictest0-21swapper/210:25:012
3852994991311,1cyclictest0-21swapper/208:10:012
3852994991311,1cyclictest0-21swapper/207:33:342
3852994991310,1cyclictest0-21swapper/212:18:332
3852994991310,1cyclictest0-21swapper/212:13:252
3852994991310,1cyclictest0-21swapper/212:03:302
3852994991310,1cyclictest0-21swapper/211:53:252
3852994991310,1cyclictest0-21swapper/211:43:302
3852994991310,1cyclictest0-21swapper/211:38:302
3852994991310,1cyclictest0-21swapper/211:00:012
3852994991310,1cyclictest0-21swapper/210:53:272
3852994991310,1cyclictest0-21swapper/210:38:252
3852994991310,1cyclictest0-21swapper/210:13:302
3852994991310,1cyclictest0-21swapper/210:04:222
3852994991310,1cyclictest0-21swapper/209:38:222
3852994991310,1cyclictest0-21swapper/209:23:252
3852994991310,1cyclictest0-21swapper/209:03:322
3852994991310,1cyclictest0-21swapper/209:00:012
3852994991310,1cyclictest0-21swapper/207:53:372
3852994991310,1cyclictest0-21swapper/207:43:312
3852994991310,1cyclictest0-21swapper/207:18:352
385299399139,3cyclictest3995592-21irqrtprio09:08:301
385299399139,3cyclictest3931032-21kthreadcore08:13:331
385299399139,3cyclictest3899281-21irqcore07:48:321
385299399139,3cyclictest3875049-21irqcore07:28:311
385299399136,5cyclictest257-21systemd-journal09:13:211
385299399136,3cyclictest0-21swapper/111:50:221
3852993991311,1cyclictest4162890-21mailstats11:23:351
3852993991310,2cyclictest4122156-21fschecks_count10:53:271
3852993991310,2cyclictest4114135-21latency10:43:341
3852993991310,2cyclictest4079686-21cpuspeed_turbos10:18:261
3852993991310,2cyclictest4061885-21gltestperf10:03:291
3852993991310,2cyclictest4016997-21kthreadcore09:23:331
3852993991310,2cyclictest3967141-21kthreadcore08:43:331
3852993991310,2cyclictest3946459-21aten_repower_po08:28:251
3852993991310,2cyclictest3923918-21kthreadcore08:08:321
3852993991310,2cyclictest3906355-21kthreadcore07:53:321
3852993991310,2cyclictest3886698-21fschecks_time07:38:261
3852993991310,2cyclictest3869265-21irqrtprio07:23:311
3852993991310,2cyclictest3857510-21kthreadcore07:13:341
3852993991310,2cyclictest341rcuc/110:28:271
3852993991310,2cyclictest10384-21kthreadcore11:58:331
385299299134,5cyclictest3853834-21expr07:13:280
385299299133,4cyclictest3964356-21sshd08:43:220
385299299131,7cyclictest3970389-21/usr/sbin/munin08:48:290
3852992991310,2cyclictest4097467-21acpi10:33:240
3852992991310,2cyclictest4051998-21kthreadcore09:53:310
3852992991310,2cyclictest4038388-21kthreadcore09:43:330
3852992991310,2cyclictest4022789-21kthreadcore09:28:340
3852992991310,2cyclictest3922344-21aten_repower_fr08:08:250
3852992991310,2cyclictest3897084-21sendmail_mailqu07:43:360
3852992991310,2cyclictest3881438-21kthreadcore07:33:320
3852992991310,2cyclictest32857-21sed12:23:290
3852992991310,2cyclictest29021-21rtkit-daemon11:17:550
3852992991310,2cyclictest29021-21rtkit-daemon09:36:340
3852992991310,2cyclictest13908-21kthreadcore12:03:320
385299499129,1cyclictest0-21swapper/211:03:322
385299499129,1cyclictest0-21swapper/210:08:132
385299499129,1cyclictest0-21swapper/209:53:252
385299499129,1cyclictest0-21swapper/209:16:002
385299499129,1cyclictest0-21swapper/209:06:362
385299499129,1cyclictest0-21swapper/208:32:592
3852994991210,1cyclictest0-21swapper/211:23:252
3852994991210,1cyclictest0-21swapper/208:38:282
3852994991210,1cyclictest0-21swapper/208:23:322
3852994991210,1cyclictest0-21swapper/208:15:022
3852994991210,1cyclictest0-21swapper/207:23:332
385299399129,2cyclictest4085552-21aten_repower_fr10:23:271
385299399125,5cyclictest39048-21sed12:28:301
385299399121,5cyclictest18915-21cat12:10:021
385299299129,2cyclictest29021-21rtkit-daemon12:07:450
385299299125,5cyclictest4177639-21kthreadcore11:38:330
385299299122,5cyclictest4006548-21head09:18:250
385299299121,7cyclictest0-21swapper/008:13:260
2649091128,1phc2sys0-21swapper/311:04:323
2649091120,2phc2sys0-21swapper/310:33:243
2649091120,1phc2sys0-21swapper/311:23:393
385299499119,1cyclictest0-21swapper/212:09:032
385299499119,1cyclictest0-21swapper/210:31:462
385299499119,1cyclictest0-21swapper/210:28:282
385299499119,1cyclictest0-21swapper/208:46:182
385299499118,1cyclictest0-21swapper/212:36:422
2649091112,7phc2sys0-21swapper/307:17:543
2649091111,2phc2sys0-21swapper/311:43:253
2649091111,1phc2sys0-21swapper/308:18:323
2649091110,3phc2sys0-21swapper/310:30:013
2649091110,2phc2sys0-21swapper/312:39:263
2649091110,2phc2sys0-21swapper/309:38:223
2649091110,1phc2sys0-21swapper/310:03:103
2649091110,1phc2sys0-21swapper/308:33:503
2649091110,1phc2sys0-21swapper/308:06:133
40852882100,2sleep30-21swapper/310:21:213
2649091104,2phc2sys0-21swapper/308:00:013
2649091103,2phc2sys0-21swapper/308:13:383
2649091101,3phc2sys0-21swapper/307:38:223
2649091101,2phc2sys0-21swapper/307:13:393
2649091100,4phc2sys0-21swapper/309:53:243
2649091100,2phc2sys0-21swapper/312:05:013
2649091100,2phc2sys0-21swapper/309:48:243
2649091100,2phc2sys0-21swapper/307:08:583
2649091100,1phc2sys0-21swapper/312:13:153
2649091100,1phc2sys0-21swapper/312:00:003
2649091100,1phc2sys0-21swapper/311:32:393
2649091100,1phc2sys0-21swapper/310:46:503
2649091100,1phc2sys0-21swapper/310:42:413
2649091100,1phc2sys0-21swapper/310:08:153
2649091100,1phc2sys0-21swapper/309:56:093
2649091100,1phc2sys0-21swapper/308:46:133
2649091100,1phc2sys0-21swapper/308:02:333
2649091100,1phc2sys0-21swapper/307:41:203
2649091100,1phc2sys0-21swapper/307:26:373
38529949997,1cyclictest0-21swapper/207:10:022
264909192,1phc2sys0-21swapper/310:53:153
264909191,3phc2sys0-21swapper/308:28:243
264909191,2phc2sys0-21swapper/312:33:303
264909191,2phc2sys0-21swapper/312:23:283
264909191,2phc2sys0-21swapper/307:53:273
264909191,1phc2sys0-21swapper/309:23:273
264909190,3phc2sys0-21swapper/310:18:243
264909190,2phc2sys0-21swapper/312:18:313
264909190,2phc2sys0-21swapper/311:48:263
264909190,2phc2sys0-21swapper/311:28:353
264909190,2phc2sys0-21swapper/311:08:263
264909190,2phc2sys0-21swapper/310:40:013
264909190,2phc2sys0-21swapper/309:44:553
264909190,2phc2sys0-21swapper/309:33:293
264909190,2phc2sys0-21swapper/309:28:323
264909190,2phc2sys0-21swapper/309:03:283
264909190,2phc2sys0-21swapper/308:44:563
264909190,2phc2sys0-21swapper/307:33:313
264909190,1phc2sys0-21swapper/312:30:023
264909181,2phc2sys0-21swapper/310:58:273
264909181,2phc2sys0-21swapper/310:12:323
264909181,2phc2sys0-21swapper/309:18:143
264909181,2phc2sys0-21swapper/309:11:573
264909180,3phc2sys0-21swapper/311:38:273
264909180,3phc2sys0-21swapper/309:08:243
264909180,2phc2sys0-21swapper/312:10:023
264909180,2phc2sys0-21swapper/311:53:273
264909180,2phc2sys0-21swapper/311:18:373
264909180,2phc2sys0-21swapper/308:55:023
264909180,2phc2sys0-21swapper/308:53:303
264909180,1phc2sys0-21swapper/308:38:313
264909180,1phc2sys0-21swapper/308:21:243
264909180,1phc2sys0-21swapper/307:45:403
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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