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2025-12-25 - 03:43
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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 Thu Dec 25, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21718721630,2sleep30-21swapper/300:03:313
41145042810,2sleep30-21swapper/319:58:303
40829542300,2sleep30-21swapper/319:33:213
4055357992723,2cyclictest4130160-21sh20:10:010
405535799237,2cyclictest214387-40updatedb.mlocat00:00:010
4055359992219,1cyclictest0-21swapper/200:00:012
4055358992219,2cyclictest4075718-21systemd19:25:011
4055357992115,1cyclictest0-21swapper/000:03:240
41364722200,2sleep30-21swapper/320:15:013
41364722200,2sleep30-21swapper/320:15:013
4055359992017,1cyclictest0-21swapper/220:18:272
4055357992017,2cyclictest4075652-21latency_hist19:25:020
4055357992017,2cyclictest1290-21dbus-daemon20:00:010
4055359991917,1cyclictest0-21swapper/219:15:022
4055358991916,2cyclictest4061876-21sh19:15:021
4055358991916,2cyclictest262663-21latency_hist00:40:011
4055358991915,3cyclictest9788-21cstates21:13:231
4055357991917,1cyclictest4136109-21/usr/sbin/munin20:15:000
4055357991917,1cyclictest4136109-21/usr/sbin/munin20:15:000
4055357991916,2cyclictest4061587-21grep19:15:010
405535999182,8cyclictest0-21swapper/221:58:212
4055359991816,1cyclictest0-21swapper/223:25:002
4055359991815,1cyclictest0-21swapper/223:15:012
4055359991815,1cyclictest0-21swapper/221:40:012
4055359991815,1cyclictest0-21swapper/221:05:002
405535899188,4cyclictest1290-21dbus-daemon19:45:001
4055358991815,2cyclictest4055355-21cyclictest00:30:011
405535799187,6cyclictest0-21swapper/022:03:290
4055357991815,2cyclictest160592-21tr23:18:230
4055357991811,4cyclictest227070-21aten_repower_cu00:13:220
4055359991714,1cyclictest0-21swapper/220:00:012
405535899178,3cyclictest501rcuop/221:47:141
405535899177,4cyclictest1290-21dbus-daemon20:20:001
4055358991714,2cyclictest1326-21systemd-logind00:00:021
4055358991714,2cyclictest0-21swapper/119:40:001
405535799174,8cyclictest4136613-21sshd20:15:030
4055357991714,2cyclictest154849-21irqcore23:13:260
4055357991713,3cyclictest148502-21grep23:08:240
4055357991711,3cyclictest4055355-21cyclictest22:33:250
405535999169,4cyclictest0-21swapper/222:13:202
4055359991614,1cyclictest0-21swapper/200:40:022
4055359991613,1cyclictest0-21swapper/223:00:012
4055359991613,1cyclictest0-21swapper/222:48:252
4055359991613,1cyclictest0-21swapper/220:45:012
4055359991613,1cyclictest0-21swapper/220:15:012
4055359991613,1cyclictest0-21swapper/220:15:012
405535899168,3cyclictest0-21swapper/120:13:281
405535899168,3cyclictest0-21swapper/120:13:281
405535899167,3cyclictest501rcuop/223:51:411
405535899167,3cyclictest501rcuop/223:30:371
405535899167,3cyclictest501rcuop/221:56:321
405535899167,3cyclictest501rcuop/221:05:421
405535899167,3cyclictest501rcuop/220:30:281
405535899167,3cyclictest501rcuop/220:20:221
405535899166,3cyclictest501rcuop/219:28:361
4055358991613,2cyclictest4186183-21sed20:58:261
4055358991613,2cyclictest4154118-21timerwakeupswit20:28:351
4055358991613,2cyclictest4106164-21grep19:50:011
4055358991613,2cyclictest21848-21cstates21:23:221
4055358991613,2cyclictest215595-21fschecks_time00:03:281
4055358991613,2cyclictest123331-21systemd-run22:45:001
4055358991613,2cyclictest0-21swapper/120:45:011
4055358991612,3cyclictest35610-21kthreadcore21:33:281
4055358991612,1cyclictest601rcuop/323:10:011
4055357991613,2cyclictest4157730-21kthreadcore20:33:290
4055357991613,2cyclictest4055355-21cyclictest21:03:310
4055357991613,2cyclictest262616-21sh00:40:010
4055357991613,2cyclictest0-21swapper/021:10:000
405535799160,2cyclictest1290-21dbus-daemon21:20:010
2649091160,1phc2sys0-21swapper/322:27:273
4055359991513,1cyclictest0-21swapper/221:10:012
4055359991512,1cyclictest0-21swapper/223:38:292
4055359991512,1cyclictest0-21swapper/222:43:252
4055359991512,1cyclictest0-21swapper/222:38:272
4055359991512,1cyclictest0-21swapper/222:18:262
4055359991512,1cyclictest0-21swapper/221:53:272
4055359991512,1cyclictest0-21swapper/221:28:232
4055359991512,1cyclictest0-21swapper/219:50:012
4055359991512,1cyclictest0-21swapper/219:33:232
4055359991512,1cyclictest0-21swapper/200:23:252
405535899158,3cyclictest501rcuop/220:53:521
405535899157,3cyclictest501rcuop/223:41:511
405535899157,3cyclictest501rcuop/223:25:041
405535899157,3cyclictest501rcuop/223:24:081
405535899157,3cyclictest501rcuop/222:27:491
405535899157,3cyclictest501rcuop/222:12:591
405535899157,3cyclictest501rcuop/222:00:521
405535899157,3cyclictest501rcuop/221:38:361
405535899157,3cyclictest501rcuop/221:26:181
405535899157,3cyclictest501rcuop/220:35:211
405535899157,3cyclictest501rcuop/219:55:291
405535899156,3cyclictest501rcuop/223:49:001
405535899156,3cyclictest501rcuop/223:14:501
405535899156,3cyclictest501rcuop/222:57:311
405535899156,3cyclictest501rcuop/219:33:571
405535899156,3cyclictest501rcuop/219:18:191
405535899156,3cyclictest501rcuop/200:18:381
405535899155,3cyclictest256572-21debian-sa100:35:001
4055358991512,2cyclictest185040-21head23:38:221
4055358991512,2cyclictest130596-21gltestperf22:53:261
4055358991511,3cyclictest1327-21in:imuxsock00:15:011
4055358991511,3cyclictest127469-21kthreadcore22:48:281
4055358991510,1cyclictest4043316-21kworker/1:2+events_freezable19:10:011
405535899150,4cyclictest4124057-21munin-run20:05:011
405535799154,6cyclictest76084-21cstates22:08:220
405535799153,2cyclictest4119939-21kthreadcore20:03:300
4055357991513,1cyclictest4184579-21latency_hist20:55:010
4055357991512,2cyclictest92447-21needreboot22:18:290
4055357991512,2cyclictest45858-21cpuspeed_turbos21:43:230
4055357991512,2cyclictest4168136-21grep20:43:250
4055357991512,2cyclictest4063057-21kthreadcore19:15:030
4055357991512,2cyclictest4055355-21cyclictest19:38:310
4055357991512,2cyclictest33803-21cpuspeed_turbos21:33:230
4055357991512,2cyclictest32978-21perf21:30:010
4055357991512,2cyclictest135331-21perf22:55:000
4055357991512,2cyclictest1288-1atopacctd22:43:280
4055357991512,2cyclictest0-21swapper/022:40:010
4055357991512,2cyclictest0-21swapper/021:25:000
4055359991412,1cyclictest0-21swapper/219:20:012
4055359991411,1cyclictest0-21swapper/223:55:012
4055359991411,1cyclictest0-21swapper/223:18:282
4055359991411,1cyclictest0-21swapper/222:30:012
4055359991411,1cyclictest0-21swapper/222:23:282
4055359991411,1cyclictest0-21swapper/221:33:282
4055359991411,1cyclictest0-21swapper/220:32:492
4055359991411,1cyclictest0-21swapper/220:25:002
4055359991411,1cyclictest0-21swapper/219:55:012
4055359991411,1cyclictest0-21swapper/219:39:522
4055359991411,1cyclictest0-21swapper/219:23:292
405535999140,10cyclictest0-21swapper/220:50:012
405535899147,3cyclictest501rcuop/200:07:081
405535899146,3cyclictest501rcuop/222:35:351
405535899146,3cyclictest501rcuop/222:23:451
405535899146,3cyclictest501rcuop/222:15:231
405535899146,3cyclictest501rcuop/222:09:501
405535899146,3cyclictest501rcuop/221:41:131
405535899146,3cyclictest501rcuop/221:16:561
405535899146,3cyclictest501rcuop/221:02:461
405535899146,3cyclictest501rcuop/220:46:471
405535899146,3cyclictest501rcuop/219:54:371
405535899146,3cyclictest501rcuop/200:23:031
405535899145,3cyclictest501rcuop/223:02:161
4055358991411,2cyclictest160585-21tr23:18:231
4055358991410,3cyclictest4124654-21aten_repower_cu20:08:241
405535799147,3cyclictest171742-21turbostat23:25:000
405535799141,7cyclictest1290-21dbus-daemon19:35:010
4055357991412,1cyclictest203060-21head23:53:230
4055357991411,2cyclictest86270-21latency22:13:280
4055357991411,2cyclictest63082-21idleruntime-cro21:55:000
4055357991411,2cyclictest4177688-21missed_timers20:48:300
4055357991411,2cyclictest4108750-21kthreadcore19:53:270
4055357991411,2cyclictest257-21systemd-journal20:55:070
4055357991411,2cyclictest256035-21sendmail_mailqu00:33:330
4055357991411,2cyclictest142227-21cut23:03:230
4055357991411,2cyclictest127247-21kthreadcore22:48:280
4055357991411,2cyclictest0-21swapper/020:30:010
4055357991410,3cyclictest4104738-21kthreadcore19:48:290
4055357991410,3cyclictest174485-21kthreadcore23:28:300
4055357991410,2cyclictest99413-21latency_hist22:25:020
4055357991410,2cyclictest0-21swapper/000:30:020
2649091149,1phc2sys0-21swapper/322:23:583
2649091141,1phc2sys0-21swapper/323:40:003
2649091140,3phc2sys0-21swapper/320:08:303
405535999131,9cyclictest0-21swapper/200:20:012
405535999131,8cyclictest0-21swapper/219:10:012
405535999131,6cyclictest0-21swapper/220:30:012
4055359991311,1cyclictest0-21swapper/221:15:022
4055359991310,1cyclictest0-21swapper/223:48:212
4055359991310,1cyclictest0-21swapper/223:30:002
4055359991310,1cyclictest0-21swapper/223:03:282
4055359991310,1cyclictest0-21swapper/221:48:212
4055359991310,1cyclictest0-21swapper/220:58:212
4055359991310,1cyclictest0-21swapper/220:53:312
4055359991310,1cyclictest0-21swapper/220:38:252
4055359991310,1cyclictest0-21swapper/220:03:292
4055359991310,1cyclictest0-21swapper/219:28:202
4055359991310,1cyclictest0-21swapper/200:28:242
4055359991310,1cyclictest0-21swapper/200:13:302
4055359991310,1cyclictest0-21swapper/200:03:262
405535899136,3cyclictest501rcuop/222:33:511
405535799139,3cyclictest4055355-21cyclictest22:28:250
405535799139,2cyclictest0-21swapper/023:40:010
405535799135,3cyclictest197668-21hddtemp_smartct23:48:240
405535799133,5cyclictest239244-21aten2.4-expect00:23:210
405535799133,4cyclictest178758-21sshd23:32:290
405535799132,6cyclictest0-21swapper/021:38:280
4055357991311,1cyclictest234132-21irqcore00:18:260
4055357991311,1cyclictest0-21swapper/021:15:000
4055357991310,2cyclictest67514-21kthreadcore21:58:280
4055357991310,2cyclictest55828-21kthreadcore21:48:270
4055357991310,2cyclictest4145701-21kthreadcore20:23:280
4055357991310,2cyclictest4095453-21tr19:43:270
4055357991310,2cyclictest4082211-21systemd-run19:30:020
2649091130,3phc2sys41784582sleep320:49:563
2649091130,2phc2sys0-21swapper/321:07:003
2649091130,2phc2sys0-21swapper/321:03:313
405535999129,1cyclictest0-21swapper/223:43:282
405535999129,1cyclictest0-21swapper/223:33:292
405535999129,1cyclictest0-21swapper/223:08:262
405535999129,1cyclictest0-21swapper/222:33:242
405535999129,1cyclictest0-21swapper/222:00:252
405535999129,1cyclictest0-21swapper/200:33:292
4055359991210,1cyclictest0-21swapper/222:53:222
4055359991210,1cyclictest0-21swapper/222:08:282
4055359991210,1cyclictest0-21swapper/221:40:172
4055359991210,1cyclictest0-21swapper/221:23:332
4055359991210,1cyclictest0-21swapper/221:20:022
4055359991210,1cyclictest0-21swapper/220:08:292
405535899126,2cyclictest134050irq/121-eno121:53:321
405535799129,2cyclictest221181-21aten_repower_vo00:08:220
405535799129,2cyclictest139515-21kthreadcore22:58:300
405535799126,4cyclictest1290-21dbus-daemon19:10:010
405535799125,2cyclictest4161529-21df_inode20:38:240
405535799122,5cyclictest191015-21aten2.4-expect23:43:220
2649091121,5phc2sys0-21swapper/323:53:213
2649091121,2phc2sys0-21swapper/321:13:223
2649091120,1phc2sys0-21swapper/323:19:563
2649091120,1phc2sys0-21swapper/322:34:563
2649091120,1phc2sys0-21swapper/321:15:573
2649091120,1phc2sys0-21swapper/300:28:083
405535999119,1cyclictest0-21swapper/219:41:092
405535999118,1cyclictest0-21swapper/200:08:252
2649091111,3phc2sys0-21swapper/300:08:213
2649091111,2phc2sys0-21swapper/322:40:013
2649091111,2phc2sys0-21swapper/300:33:223
2649091110,4phc2sys0-21swapper/320:38:213
2649091110,2phc2sys0-21swapper/323:27:383
2649091110,2phc2sys0-21swapper/323:11:593
2649091110,2phc2sys0-21swapper/323:03:213
2649091110,2phc2sys0-21swapper/322:46:133
2649091110,2phc2sys0-21swapper/320:29:293
2649091110,2phc2sys0-21swapper/319:23:213
2649091110,1phc2sys0-21swapper/323:23:013
2649091110,1phc2sys0-21swapper/322:53:033
2649091110,1phc2sys0-21swapper/321:29:333
2649091110,1phc2sys0-21swapper/320:52:093
2649091104,1phc2sys0-21swapper/323:56:073
2649091102,2phc2sys0-21swapper/320:23:283
2649091101,2phc2sys0-21swapper/319:53:343
2649091100,2phc2sys0-21swapper/322:20:023
2649091100,2phc2sys0-21swapper/321:48:203
2649091100,2phc2sys0-21swapper/321:38:343
2649091100,2phc2sys0-21swapper/321:33:293
2649091100,2phc2sys0-21swapper/319:45:013
2649091100,1phc2sys0-21swapper/322:42:543
2649091100,1phc2sys0-21swapper/322:14:373
2649091100,1phc2sys0-21swapper/320:59:423
2649091100,1phc2sys0-21swapper/300:21:153
2649091100,1phc2sys0-21swapper/300:19:233
2649091100,1phc2sys0-21swapper/300:12:303
264909192,2phc2sys0-21swapper/323:08:253
264909191,3phc2sys0-21swapper/320:03:233
264909191,2phc2sys0-21swapper/323:48:293
264909191,2phc2sys0-21swapper/321:58:223
264909191,2phc2sys0-21swapper/319:47:293
264909191,1phc2sys0-21swapper/300:38:193
264909190,2phc2sys0-21swapper/323:43:243
264909190,2phc2sys0-21swapper/323:33:233
264909190,2phc2sys0-21swapper/322:08:283
264909190,2phc2sys0-21swapper/322:03:343
264909190,2phc2sys0-21swapper/321:54:353
264909190,2phc2sys0-21swapper/320:18:273
264909190,1phc2sys0-21swapper/320:40:513
264909181,2phc2sys0-21swapper/320:33:213
264909181,2phc2sys0-21swapper/319:26:263
264909180,2phc2sys0-21swapper/322:58:243
264909180,2phc2sys0-21swapper/319:38:243
264909180,2phc2sys0-21swapper/319:18:203
264909180,2phc2sys0-21swapper/319:08:223
264909180,1phc2sys0-21swapper/321:43:113
264909180,1phc2sys0-21swapper/321:21:313
264909180,1phc2sys0-21swapper/319:12:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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