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2026-07-09 - 04:18
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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 Jul 09, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
169636021020,1sleep11696361-21latency_hist19:10:011
19228762370,2sleep00-21swapper/022:04:450
1696312993020,9cyclictest0-21swapper/122:30:001
1696312992818,2cyclictest67250irq/126-eno123:10:421
1696313992314,4cyclictest0-21swapper/223:00:012
3153791221,3phc2sys0-21swapper/322:29:393
169631199229,5cyclictest660-21dbus-daemon23:30:020
169631199229,5cyclictest660-21dbus-daemon23:30:020
1696311992219,2cyclictest698-21in:imuxsock21:30:010
492398210,2rtkit-daemon4922-21rtkit-daemon23:07:400
1696313992118,1cyclictest0-21swapper/222:05:022
1696312992118,2cyclictest0-21swapper/121:40:011
1696313992017,1cyclictest0-21swapper/200:10:012
169631399201,12cyclictest0-21swapper/219:20:012
1696312992017,2cyclictest0-21swapper/100:20:011
169631199201,7cyclictest1-21systemd20:10:020
1696311992017,2cyclictest1-21systemd20:00:010
1696311992011,5cyclictest1247-21mta-sts-daemon21:57:110
169631199200,7cyclictest1980709-21ssh22:44:370
3153791190,2phc2sys0-21swapper/322:34:363
3153791190,2phc2sys0-21swapper/322:05:333
1696313991916,1cyclictest0-21swapper/200:15:012
1696312991916,2cyclictest492398rtkit-daemon21:59:391
1696312991916,2cyclictest2004192-21kthreadcore22:59:441
1696312991916,2cyclictest1020-21runrttasks23:44:401
1696312991911,3cyclictest2137478-21gltestperf00:29:421
169631199199,5cyclictest0-21swapper/021:20:030
169631199195,2cyclictest17750irq/132-ahci[0000:00:17.0]23:20:010
1696311991916,2cyclictest3937-21cron21:35:010
1696311991916,2cyclictest1838560-21cron21:05:000
1696311991916,2cyclictest1020-21runrttasks22:38:070
1696311991916,2cyclictest0-21swapper/000:05:010
1696311991913,5cyclictest2075508-21/usr/sbin/munin23:45:010
1696313991816,1cyclictest0-21swapper/219:35:022
1696313991815,1cyclictest0-21swapper/223:49:452
1696313991815,1cyclictest0-21swapper/222:55:012
1696313991815,1cyclictest0-21swapper/222:45:012
1696313991815,1cyclictest0-21swapper/222:00:012
1696313991815,1cyclictest0-21swapper/221:39:482
1696313991815,1cyclictest0-21swapper/219:15:022
1696313991814,2cyclictest0-21swapper/220:40:002
1696313991814,2cyclictest0-21swapper/200:36:152
169631299189,2cyclictest191rcu_preempt22:19:371
169631299188,4cyclictest0-21swapper/100:14:361
1696312991815,2cyclictest2082808-21latency_hist23:50:011
1696312991815,2cyclictest1702923-21tr19:15:021
1696312991815,2cyclictest0-21swapper/123:05:031
1696312991815,2cyclictest0-21swapper/120:40:021
1696312991814,3cyclictest1712631-21kthreadcore19:24:441
1696312991812,2cyclictest67250irq/126-eno100:39:481
169631199189,4cyclictest0-21swapper/023:40:020
169631199187,6cyclictest0-21swapper/000:24:520
1696311991816,1cyclictest1897253-21apt-key21:45:010
1696311991815,2cyclictest765-1atopacctd20:45:010
1696311991815,2cyclictest2119708-21grep00:14:500
1696311991815,2cyclictest2107651-21sed00:09:410
1696311991815,2cyclictest2060627-21systemd23:35:020
1696311991815,2cyclictest1964137-21systemd22:30:010
1696311991811,6cyclictest0-21swapper/022:25:010
3153791171,4phc2sys0-21swapper/323:45:013
3153791170,3phc2sys0-21swapper/300:19:473
3153791170,2phc2sys0-21swapper/322:43:373
3153791170,2phc2sys0-21swapper/321:12:393
3153791170,2phc2sys0-21swapper/300:02:333
169631399174,6cyclictest0-21swapper/220:59:382
1696313991715,1cyclictest0-21swapper/223:40:022
1696313991714,1cyclictest0-21swapper/222:50:012
1696313991714,1cyclictest0-21swapper/221:19:422
1696313991714,1cyclictest0-21swapper/221:05:012
1696313991714,1cyclictest0-21swapper/219:59:522
1696313991714,1cyclictest0-21swapper/200:34:432
1696313991714,1cyclictest0-21swapper/200:20:002
1696313991714,1cyclictest0-21swapper/200:04:452
1696313991713,2cyclictest0-21swapper/222:25:082
169631399171,11cyclictest0-21swapper/223:29:382
169631399171,11cyclictest0-21swapper/223:29:382
169631299179,3cyclictest0-21swapper/121:15:331
1696312991714,2cyclictest698-21in:imuxsock19:35:011
1696312991714,2cyclictest658-21avahi-daemon20:20:021
1696312991714,2cyclictest1974028-21gltestperf22:39:421
1696312991714,2cyclictest1242-21mta-sts-daemon23:26:551
1696312991714,2cyclictest1242-21mta-sts-daemon23:26:551
1696312991714,2cyclictest0-21swapper/121:44:511
1696312991714,2cyclictest0-21swapper/121:05:011
169631199179,2cyclictest0-21swapper/023:54:430
169631199177,5cyclictest0-21swapper/023:03:190
169631199177,5cyclictest0-21swapper/022:59:460
169631199177,5cyclictest0-21swapper/021:10:010
169631199177,2cyclictest492398rtkit-daemon20:15:070
169631199175,5cyclictest0-21swapper/022:14:390
169631199174,6cyclictest1745678-21cut19:49:460
1696311991714,2cyclictest1931291-21kthreadcore22:09:450
1696311991714,2cyclictest1716063-21needreboot19:24:460
1696311991714,2cyclictest1710754-21systemd19:20:010
1696311991714,2cyclictest1696309-21cyclictest00:19:540
1696311991714,2cyclictest1247-21mta-sts-daemon21:20:480
3153791160,3phc2sys0-21swapper/323:58:113
3153791160,2phc2sys0-21swapper/322:51:343
3153791160,2phc2sys0-21swapper/322:17:113
3153791160,2phc2sys0-21swapper/321:41:433
3153791160,1phc2sys0-21swapper/323:35:313
1696313991614,1cyclictest0-21swapper/219:10:012
1696313991613,1cyclictest0-21swapper/223:52:022
1696313991613,1cyclictest0-21swapper/222:14:502
1696313991613,1cyclictest0-21swapper/221:54:382
1696313991613,1cyclictest0-21swapper/221:49:372
1696313991613,1cyclictest0-21swapper/221:24:402
1696313991613,1cyclictest0-21swapper/220:25:022
169631299168,3cyclictest0-21swapper/123:40:021
169631299168,3cyclictest0-21swapper/119:19:421
169631299165,6cyclictest1971479-21awk22:35:001
169631299164,7cyclictest2055747-21cat23:34:421
1696312991613,2cyclictest1987887-21diskmemload22:49:041
1696312991613,2cyclictest1981245-21sh22:44:401
1696312991613,2cyclictest1785090-21gltestperf20:24:411
1696312991613,2cyclictest1771754-21latency_hist20:10:031
1696312991613,2cyclictest1764597-21phc2sys20:04:481
1696312991612,3cyclictest765-1atopacctd00:09:441
1696312991612,3cyclictest660-21dbus-daemon21:00:011
1696312991612,3cyclictest1815612-21fschecks_time20:49:411
1696312991612,3cyclictest1814442-21kworker/u16:1+nfsiod21:30:061
1696312991610,3cyclictest1997921-21kthreadcore22:54:461
169631199167,8cyclictest0-21swapper/021:39:370
169631199165,6cyclictest0-21swapper/023:59:410
169631199164,7cyclictest0-21swapper/020:50:010
1696311991613,2cyclictest2149725-21systemd-run00:35:010
1696311991613,2cyclictest2082699-21cron23:50:000
1696311991613,2cyclictest1701655-21grep19:14:480
1696311991613,2cyclictest0-21swapper/022:35:010
1696311991613,2cyclictest0-21swapper/021:55:020
1696311991613,2cyclictest0-21swapper/000:30:010
1696311991612,3cyclictest70-21kcompactd023:14:410
1696311991612,3cyclictest1934563-21kworker/u16:0+nfsiod22:52:160
1696311991612,3cyclictest1814442-21kworker/u16:1+nfsiod21:47:160
1696311991611,4cyclictest1629686-21kworker/u16:2+nfsiod21:11:040
3153791150,4phc2sys0-21swapper/322:24:383
3153791150,2phc2sys0-21swapper/323:50:423
169631399151,7cyclictest0-21swapper/223:34:372
1696313991512,2cyclictest0-21swapper/219:39:482
1696313991512,1cyclictest0-21swapper/223:20:012
1696313991512,1cyclictest0-21swapper/223:02:522
1696313991512,1cyclictest0-21swapper/222:24:452
1696313991512,1cyclictest0-21swapper/222:19:382
1696313991512,1cyclictest0-21swapper/221:45:012
1696313991512,1cyclictest0-21swapper/221:15:022
1696313991512,1cyclictest0-21swapper/220:44:412
1696313991512,1cyclictest0-21swapper/219:30:012
1696313991512,1cyclictest0-21swapper/219:24:452
1696313991511,2cyclictest0-21swapper/223:56:402
1696313991511,2cyclictest0-21swapper/220:12:172
169631299158,2cyclictest1237-21mta-sts-daemon19:54:481
169631299154,3cyclictest501rcuop/222:08:121
1696312991513,1cyclictest1696309-21cyclictest21:13:591
1696312991513,1cyclictest1242-21mta-sts-daemon22:23:211
1696312991512,2cyclictest2145023-21if_enp1s000:34:421
1696312991512,2cyclictest2034092-21kthreadcore23:19:441
1696312991512,2cyclictest2018580-21grep23:09:401
1696312991512,2cyclictest1937658-21kthreadcore22:14:441
1696312991512,2cyclictest1905086-21kworker/u16:3-events_unbound22:01:421
1696312991512,2cyclictest1864715-21kthreadcore21:24:451
1696312991512,2cyclictest1843628-21kthreadcore21:09:461
1696312991512,2cyclictest1696309-21cyclictest20:14:491
1696312991512,2cyclictest1247-21mta-sts-daemon23:50:311
1696312991512,2cyclictest0-21swapper/121:30:011
1696312991511,3cyclictest1897377-21kworker/u16:0+nfsiod21:51:531
1696312991511,3cyclictest1237-21mta-sts-daemon00:02:201
1696312991510,4cyclictest4915-21sendmail-mta19:47:551
1696312991510,2cyclictest1741027-21unin-run19:45:011
1696312991510,1cyclictest2038326-21kworker/1:0+events_freezable23:56:321
169631299150,2cyclictest0-21swapper/120:33:421
169631199159,5cyclictest1247-21mta-sts-daemon20:37:470
169631199158,5cyclictest2040141-21apt-get23:24:360
1696311991512,2cyclictest1734774-21unixbench-2d19:39:510
1696311991512,2cyclictest1242-21mta-sts-daemon19:32:510
1696311991511,3cyclictest1246-21mta-sts-daemon22:16:380
3153791140,4phc2sys0-21swapper/300:13:063
3153791140,2phc2sys0-21swapper/323:04:483
3153791140,2phc2sys0-21swapper/321:21:363
1696313991412,1cyclictest0-21swapper/223:44:532
1696313991412,1cyclictest0-21swapper/223:07:512
169631399141,11cyclictest0-21swapper/223:14:472
1696313991411,1cyclictest0-21swapper/222:30:162
1696313991411,1cyclictest0-21swapper/221:34:442
1696313991411,1cyclictest0-21swapper/220:50:002
1696313991411,1cyclictest0-21swapper/220:33:412
1696313991411,1cyclictest0-21swapper/220:19:272
1696313991411,1cyclictest0-21swapper/219:47:062
1696313991411,1cyclictest0-21swapper/200:29:442
169631299148,2cyclictest67250irq/126-eno100:24:301
169631299142,4cyclictest491rcuog/223:20:241
1696312991411,2cyclictest1791526-21cut20:29:451
1696312991411,2cyclictest1791526-21cut20:29:451
1696312991410,3cyclictest1755069-21kthreadcore19:59:471
1696312991410,3cyclictest1629686-21kworker/u16:2+nfsiod21:45:591
169631299140,2cyclictest1722788-21apt19:30:001
169631199148,5cyclictest1242-21mta-sts-daemon20:11:330
169631199145,3cyclictest1735510-21sshd19:43:410
169631199144,4cyclictest1796592-21tail20:34:380
169631199141,4cyclictest1247-21mta-sts-daemon19:10:020
1696311991411,2cyclictest1749011-21kthreadcore19:54:440
1696311991411,2cyclictest1247-21mta-sts-daemon20:23:350
1696311991411,2cyclictest1242-21mta-sts-daemon20:29:430
1696311991411,2cyclictest1242-21mta-sts-daemon20:29:430
1696311991411,2cyclictest1242-21mta-sts-daemon00:38:100
1696311991411,2cyclictest0-21swapper/022:49:400
1696311991410,3cyclictest1824345-21kthreadcore20:54:460
492398130,4rtkit-daemon1237-21mta-sts-daemon20:50:451
3153791131,5phc2sys0-21swapper/319:34:363
3153791130,4phc2sys0-21swapper/323:25:593
3153791130,4phc2sys0-21swapper/323:25:593
3153791130,3phc2sys0-21swapper/319:50:233
3153791130,2phc2sys0-21swapper/323:33:563
3153791130,2phc2sys0-21swapper/323:15:243
3153791130,2phc2sys0-21swapper/322:55:323
3153791130,2phc2sys0-21swapper/321:56:583
3153791130,2phc2sys0-21swapper/320:34:323
3153791130,1phc2sys0-21swapper/320:51:193
1696313991311,1cyclictest0-21swapper/200:22:312
1696313991310,2cyclictest0-21swapper/220:53:372
1696313991310,1cyclictest0-21swapper/223:20:052
1696313991310,1cyclictest0-21swapper/222:39:452
1696313991310,1cyclictest0-21swapper/221:27:222
1696313991310,1cyclictest0-21swapper/221:09:452
1696313991310,1cyclictest0-21swapper/220:04:412
1696313991310,1cyclictest0-21swapper/219:53:002
1696313991310,1cyclictest0-21swapper/219:44:432
169631299138,1cyclictest36-21ksoftirqd/120:44:411
1696312991310,2cyclictest1732317-21kthreadcore19:39:461
169631199138,3cyclictest274-21systemd-journal20:00:030
1696311991310,2cyclictest1827724-21fschecks_time20:59:410
1696311991310,2cyclictest1242-21mta-sts-daemon19:26:570
3153791121,4phc2sys0-21swapper/323:09:373
3153791121,4phc2sys0-21swapper/320:49:383
3153791120,3phc2sys0-21swapper/319:57:453
3153791120,2phc2sys0-21swapper/321:54:033
3153791120,2phc2sys0-21swapper/320:20:013
3153791120,2phc2sys0-21swapper/300:37:073
3153791120,1phc2sys0-21swapper/321:47:053
3153791120,1phc2sys0-21swapper/319:20:433
3153791120,1phc2sys0-21swapper/300:06:213
169631399129,1cyclictest0-21swapper/220:26:422
169631399129,1cyclictest0-21swapper/220:26:422
1696313991210,1cyclictest0-21swapper/222:05:292
1696313991210,1cyclictest0-21swapper/220:09:442
3153791110,2phc2sys0-21swapper/321:27:343
3153791110,2phc2sys0-21swapper/320:59:443
3153791110,2phc2sys0-21swapper/320:44:383
3153791110,1phc2sys0-21swapper/319:29:003
3153791101,2phc2sys0-21swapper/322:13:283
3153791101,2phc2sys0-21swapper/321:15:553
3153791101,2phc2sys0-21swapper/319:15:013
3153791101,2phc2sys0-21swapper/300:25:013
3153791100,3phc2sys0-21swapper/319:44:433
3153791100,3phc2sys0-21swapper/319:38:363
3153791100,2phc2sys0-21swapper/323:45:253
3153791100,2phc2sys0-21swapper/323:22:053
3153791100,2phc2sys0-21swapper/322:47:183
3153791100,2phc2sys0-21swapper/322:04:293
3153791100,2phc2sys0-21swapper/321:35:433
3153791100,2phc2sys0-21swapper/321:30:583
3153791100,2phc2sys0-21swapper/320:39:453
3153791100,2phc2sys0-21swapper/320:25:023
3153791100,2phc2sys0-21swapper/320:04:513
3153791100,1phc2sys0-21swapper/322:37:163
3153791100,1phc2sys0-21swapper/321:00:163
3153791100,1phc2sys0-21swapper/319:47:363
3153791100,1phc2sys0-21swapper/300:27:463
21440942100,2sleep30-21swapper/300:34:273
315379192,2phc2sys0-21swapper/323:10:423
315379190,6phc2sys1839215-21chrt21:06:083
315379190,2phc2sys0-21swapper/320:29:393
315379190,2phc2sys0-21swapper/320:29:393
315379190,2phc2sys0-21swapper/320:10:043
315379190,2phc2sys0-21swapper/320:09:403
315379190,2phc2sys0-21swapper/319:09:483
315379181,2phc2sys0-21swapper/319:15:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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