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2026-04-20 - 06:44
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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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackeslot8.osadl.org (updated Mon Apr 20, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3231729993734,1cyclictest0-21swapper/321:15:003
3231729993330,1cyclictest0-21swapper/319:18:223
3231729993128,1cyclictest0-21swapper/320:20:013
3231729993027,1cyclictest0-21swapper/323:40:003
3231729992724,1cyclictest0-21swapper/321:20:003
3231729992624,1cyclictest0-21swapper/322:25:173
323172999236,7cyclictest3497620-21turbostat22:20:003
323172999231,17cyclictest3488325-21taskset22:10:383
3231729992220,1cyclictest0-21swapper/300:10:003
3231729992219,1cyclictest0-21swapper/320:00:033
6881210,9low-memory-moni3690477-40updatedb.plocat00:20:551
323172999212,15cyclictest3285236-21taskset19:47:173
3231729992119,1cyclictest0-21swapper/323:00:003
3231729992118,1cyclictest0-21swapper/323:25:003
3231729992017,1cyclictest0-21swapper/322:50:173
323172999201,15cyclictest3452529-21taskset21:50:173
323172999201,15cyclictest3356972-21taskset20:45:143
323172999201,15cyclictest3356972-21taskset20:45:143
323172999201,15cyclictest3330374-21taskset20:21:093
323172999201,14cyclictest3692045-21taskset00:25:003
35770022190,8sleep13578580-21cut23:10:181
323172999192,13cyclictest3526672-21taskset22:35:233
3231729991916,1cyclictest0-21swapper/323:20:013
3231729991916,1cyclictest0-21swapper/321:35:163
3231729991916,1cyclictest0-21swapper/319:35:003
323172999191,14cyclictest3266744-21taskset19:35:153
323172999190,14cyclictest3279073-21taskset19:45:013
34729412184,2sleep20-21swapper/222:00:592
323172999182,12cyclictest3343562-21chrt20:34:563
3231729991816,1cyclictest0-21swapper/323:50:193
3231729991816,1cyclictest0-21swapper/322:20:193
3231729991815,1cyclictest0-21swapper/300:30:223
323172999181,14cyclictest3604310-21taskset23:25:233
323172999181,14cyclictest3569488-21taskset23:05:183
323172999181,13cyclictest3699571-21turbostat00:30:003
323172999181,13cyclictest3418502-21taskset21:25:593
323172999181,13cyclictest3410765-21taskset21:21:063
323172999181,13cyclictest3375693-21taskset20:58:333
323172999181,13cyclictest3311745-21taskset20:10:143
323172999181,13cyclictest3298268-21taskset19:58:443
323172999181,12cyclictest3606766-21chrt23:30:123
323172999177,7cyclictest33692882sleep320:54:023
323172999173,11cyclictest3451004-21turbostat21:50:013
3231729991714,1cyclictest0-21swapper/322:00:153
3231729991714,1cyclictest0-21swapper/320:45:013
323172999171,13cyclictest3683939-21taskset00:19:353
323172999171,13cyclictest3652881-21taskset23:59:433
323172999171,13cyclictest3636422-21taskset23:46:483
323172999171,13cyclictest3628759-21taskset23:42:153
323172999171,13cyclictest3566769-21taskset23:02:503
323172999171,13cyclictest3442202-21taskset21:42:033
323172999171,13cyclictest3382063-21taskset21:01:423
323172999171,12cyclictest3674823-21taskset00:10:333
323172999171,12cyclictest3674823-21taskset00:10:333
323172999171,12cyclictest3536728-21taskset22:45:023
323172999171,12cyclictest3520901-21taskset22:34:553
323172999171,12cyclictest3520901-21taskset22:34:553
323172999171,12cyclictest3382586-21taskset21:05:073
323172999171,12cyclictest3330941-21taskset20:25:103
323172999171,12cyclictest3246944-21taskset19:20:073
32308582171,11sleep03231078-21/usr/sbin/munin19:05:260
36607342161,11sleep23660781-21awk00:05:002
34721412161,12sleep03472195-21ntpq22:00:210
323172999167,6cyclictest33498542sleep320:38:013
323172999167,6cyclictest33498542sleep320:38:013
3231729991614,1cyclictest0-21swapper/300:00:013
3231729991613,1cyclictest0-21swapper/323:11:023
3231729991613,1cyclictest0-21swapper/320:05:173
323172999161,12cyclictest3707615-21taskset00:35:033
323172999161,12cyclictest3481237-21taskset22:07:333
323172999161,12cyclictest3465437-21taskset21:56:463
323172999161,12cyclictest3426600-21taskset21:32:053
323172999161,12cyclictest3237956-21taskset19:13:393
323172999161,11cyclictest3534953-21taskset22:40:323
323172999160,13cyclictest3291596-21taskset19:51:023
323172999151,11cyclictest3253802-21taskset19:25:163
129998150,1rtkit-daemon0-21swapper/023:41:120
34587652140,7sleep11-21systemd21:55:011
129998140,9rtkit-daemon3230913-21sed19:05:251
33965272130,9sleep23396713-21wc21:15:012
33944402131,4sleep13394484-21ntpq21:10:231
323172999131,9cyclictest3231814-21taskset19:10:013
129998130,8rtkit-daemon3387952-21ntpq21:05:260
36332402120,9sleep23635074-21tr23:45:192
34435642121,9sleep03443666-21cpuspeed_turbos21:45:140
34138162120,9sleep23415116-21tr21:25:192
33693652120,8sleep23369416-21systemd-run20:55:002
33363922121,8sleep03336651-21/usr/sbin/munin20:25:280
129998120,8rtkit-daemon3613660-21ssh23:33:270
129998120,8rtkit-daemon3412036-21ssh21:24:562
129998120,3rtkit-daemon3289486-21cut19:50:190
36674542110,8sleep13667458-21ssh00:06:471
36509072111,8sleep03650951-21ntpq23:55:240
36236622111,7sleep23625201-21cut23:40:182
35614952110,8sleep03562855-21cut23:00:190
35033052110,8sleep23503350-21ld22:20:242
34115802110,4sleep03411584-21ssh21:23:330
33448032110,8sleep13345768-21cut20:35:201
33448032110,8sleep13345768-21cut20:35:191
33129562110,8sleep23313870-21cut20:10:182
32742612110,7sleep03275367-21cat19:40:180
32378302110,2sleep0222-21plymouthd19:11:590
129998110,7rtkit-daemon3497610-21latency_hist22:20:001
129998110,7rtkit-daemon3441350-21sensors21:40:272
129998110,6rtkit-daemon3520998-21wc22:35:001
129998110,6rtkit-daemon3520998-21wc22:35:001
129998110,4rtkit-daemon3707138-21ssh00:34:261
129998110,4rtkit-daemon1000-21snmpd23:18:410
129998110,2rtkit-daemon222-21plymouthd22:36:071
36966582100,7sleep03697395-21missed_timers00:25:230
36671072100,1sleep00-21swapper/000:05:420
36605962100,2sleep1222-21plymouthd00:04:351
36441042100,2sleep0222-21plymouthd23:51:390
36145132101,5sleep2222-21plymouthd23:35:132
35897322100,3sleep1222-21plymouthd23:16:401
35680372100,7sleep03568241-21sh23:05:160
35285362100,2sleep0222-21plymouthd22:39:340
35198812100,2sleep0222-21plymouthd22:31:480
35198812100,2sleep0222-21plymouthd22:31:480
35116782100,7sleep13511684-21ssh22:25:361
34972282100,1sleep00-21swapper/022:18:530
34598602101,6sleep23460581-21kthreadcore21:55:182
34577242100,7sleep23457728-21ssh21:51:532
34449852101,6sleep13446009-21ssh21:45:191
34270672100,7sleep13427073-21ssh21:33:281
34211252100,7sleep03422064-21cut21:30:180
33970602100,7sleep03397216-21head21:15:150
33305842100,3sleep1222-21plymouthd20:23:521
32725142100,1sleep10-21swapper/119:39:181
32673222101,6sleep03268355-21kthreadcore19:35:170
32656822100,1sleep00-21swapper/019:30:310
32254242101,4sleep20-21swapper/219:05:122
129998100,6rtkit-daemon3388803-21diskmemload22:10:411
129998100,6rtkit-daemon2195379-21ntpd22:10:140
129998100,5rtkit-daemon3425469-21ntpq21:30:232
129998100,5rtkit-daemon3323364-21ntpq20:15:250
129998100,5rtkit-daemon222-21plymouthd20:53:200
129998100,2rtkit-daemon222-21plymouthd20:23:130
786190,4gdbus3388803-21diskmemload00:20:550
3699206290,1sleep10-21swapper/100:28:481
3613521290,1sleep20-21swapper/223:33:042
3560066291,5sleep2222-21plymouthd23:00:132
3545988290,1sleep23547302-21cut22:50:192
3543222290,1sleep10-21swapper/122:47:011
3434691290,3sleep23434697-21ssh21:38:032
3382629292,4sleep13382626-21apt-get21:05:141
3376135290,2sleep0222-21plymouthd21:00:150
3356184290,2sleep1222-21plymouthd20:40:481
3343260290,2sleep1222-21plymouthd20:31:141
3324694293,3sleep23324771-21fschecks_time20:20:172
3305576290,6sleep23306510-21kernelversion20:05:172
3305447291,5sleep13305098-21/usr/sbin/munin20:05:161
3304705291,2sleep10-21swapper/120:03:281
3284682290,2sleep2222-21plymouthd19:45:252
3277217291,2sleep20-21swapper/219:40:202
3265726290,2sleep2222-21plymouthd19:31:062
3259840291,4sleep13259873-21apt-get19:30:121
3233161290,6sleep23234169-21kthreadcore19:10:172
12999890,5rtkit-daemon703-21mta-sts-daemon20:13:010
12999890,5rtkit-daemon3298665-21acpi20:00:120
12999890,5rtkit-daemon3238314-21munin-node20:41:260
12999890,5rtkit-daemon222-21plymouthd23:49:401
12999890,4rtkit-daemon3241890-21irqstats19:15:171
12999890,4rtkit-daemon222-21plymouthd23:58:421
12999890,4rtkit-daemon222-21plymouthd21:10:460
12999890,4rtkit-daemon222-21plymouthd20:09:590
12999890,3rtkit-daemon3404258-21ssh21:19:532
3708155281,4sleep23708973-21cut00:35:192
3683435281,3sleep0222-21plymouthd00:18:130
3674203281,4sleep03674258-21ntpq00:10:230
3674203281,4sleep03674258-21ntpq00:10:230
3661095282,3sleep2222-21plymouthd00:05:122
3660652281,4sleep03660658-21ssh00:04:460
3627437281,4sleep13627531-21ntpq23:40:211
3619796281,4sleep13619842-21ntpq23:35:241
3598457280,1sleep10-21swapper/123:24:301
3598195280,1sleep20-21swapper/223:23:462
3580810281,3sleep03580903-21ntpq23:10:220
3575498280,5sleep2222-21plymouthd23:10:032
3573969280,1sleep10-21swapper/123:06:131
3573830280,2sleep23573836-21ssh23:05:422
3505732281,3sleep23505766-21apt-get22:25:132
3481277280,6sleep1222-21plymouthd22:07:401
3474595280,2sleep23474601-21ssh22:05:082
3467063280,5sleep13467099-21fschecks_count22:00:141
3466228280,1sleep10-21swapper/121:59:101
3450981281,4sleep21-21systemd21:50:012
3402249281,4sleep13402283-21ssh21:15:241
3381401281,4sleep23381445-21ntpq21:00:252
3369719281,4sleep13369831-21diskstats20:55:151
3368402281,4sleep13368443-21collect220:50:221
3336719281,4sleep2222-21plymouthd20:25:342
3311592280,4sleep1222-21plymouthd20:10:131
3297508281,4sleep13297537-21ntpq19:55:261
3292214280,3sleep20-21swapper/219:55:162
3286685281,4sleep23287755-21cut19:50:182
12999880,5rtkit-daemon703-21mta-sts-daemon21:55:360
12999880,4rtkit-daemon979-21lldpd19:58:210
12999880,4rtkit-daemon979-21lldpd19:13:051
12999880,4rtkit-daemon703-21mta-sts-daemon23:37:180
12999880,4rtkit-daemon703-21mta-sts-daemon22:46:382
12999880,4rtkit-daemon703-21mta-sts-daemon22:09:130
12999880,4rtkit-daemon703-21mta-sts-daemon00:37:281
12999880,4rtkit-daemon703-21mta-sts-daemon00:17:521
12999880,4rtkit-daemon703-21mta-sts-daemon00:13:521
12999880,4rtkit-daemon703-21mta-sts-daemon00:13:521
12999880,4rtkit-daemon3595685-21kthreadcore23:20:200
12999880,4rtkit-daemon3536258-21ssh22:44:262
12999880,4rtkit-daemon3362086-21ntp_states20:45:240
12999880,4rtkit-daemon3362086-21ntp_states20:45:240
12999880,4rtkit-daemon3324287-21kworker/1:2+events22:40:191
12999880,4rtkit-daemon222-21plymouthd19:26:561
12999880,4rtkit-daemon2195379-21ntpd22:21:381
12999880,4rtkit-daemon1000-21snmpd23:45:190
12999880,3rtkit-daemon3598959-21ssh23:25:130
12999880,3rtkit-daemon3337650-21/usr/sbin/munin20:30:160
12999880,3rtkit-daemon222-21plymouthd21:52:540
12999880,3rtkit-daemon222-21plymouthd20:37:430
12999880,3rtkit-daemon222-21plymouthd20:37:430
12999880,3rtkit-daemon222-21plymouthd19:48:270
12999880,1rtkit-daemon0-21swapper/020:56:170
3714801270,1sleep00-21swapper/000:39:100
3707017270,1sleep20-21swapper/200:34:082
3690504271,2sleep20-21swapper/200:20:562
3676649271,3sleep23676653-21ssh00:15:102
3638203270,4sleep23638539-21sed23:50:162
3600609271,4sleep23601773-21ssh23:25:192
3551057270,1sleep13551061-21ssh22:52:101
3536758271,3sleep0222-21plymouthd22:45:110
3535197271,3sleep0222-21plymouthd22:41:150
3527901270,1sleep20-21swapper/222:37:362
3518710271,3sleep2222-21plymouthd22:30:222
3518710271,3sleep2222-21plymouthd22:30:222
3505673270,1sleep0222-21plymouthd22:25:030
3504045270,1sleep00-21swapper/022:20:540
3487598271,3sleep23487639-21ntpq22:10:212
3442799270,1sleep10-21swapper/121:43:541
3434333271,3sleep13434337-21ssh21:36:571
3428103271,3sleep03428258-21grep21:35:150
3419655271,3sleep1222-21plymouthd21:29:311
3418533270,4sleep0222-21plymouthd21:26:050
3382281270,4sleep1222-21plymouthd21:04:291
3362914270,4sleep2222-21plymouthd20:49:522
3362914270,4sleep2222-21plymouthd20:49:512
3356819271,3sleep13356816-21apt-get20:45:131
3356819271,3sleep13356816-21apt-get20:45:131
3345769270,4sleep23347536-21cut20:35:202
3345769270,4sleep23347536-21cut20:35:202
3334914270,4sleep13335964-21memory20:25:211
3298657270,4sleep23298663-21cat20:00:122
3279333271,2sleep10-21swapper/119:45:131
3273049271,3sleep13273164-21perl19:40:151
3271681271,3sleep23271718-21ntpq19:35:232
3254224270,4sleep014-21ksoftirqd/019:25:180
3240491271,3sleep03240523-21apt-get19:15:120
3238333270,5sleep23238467-21kthreadcore19:15:022
12999870,3rtkit-daemon703-21mta-sts-daemon19:20:071
12999870,3rtkit-daemon3388803-21diskmemload22:56:482
12999870,3rtkit-daemon1-21systemd23:50:071
3706221260,1sleep00-21swapper/000:31:480
3698194260,1sleep20-21swapper/200:25:372
3675974260,3sleep2222-21plymouthd00:13:582
3675974260,3sleep2222-21plymouthd00:13:582
3612478260,3sleep13612669-21users23:30:271
3599884260,3sleep13600608-21kthreadcore23:25:181
3589309260,3sleep2222-21plymouthd23:15:282
3566349260,1sleep10-21swapper/123:01:321
3557902260,3sleep13558114-21grep22:55:271
3552350260,3sleep03552502-21df22:55:140
3550791260,1sleep00-21swapper/022:51:250
3443055260,1sleep00-21swapper/021:44:380
3404643260,3sleep1222-21plymouthd21:20:131
3388611261,2sleep2222-21plymouthd21:07:472
3375604261,2sleep2222-21plymouthd20:57:252
3343404261,2sleep20-21swapper/220:32:552
3324018261,2sleep20-21swapper/220:17:282
3323140260,3sleep13323252-21ntpq20:15:221
3291839260,3sleep1222-21plymouthd19:54:101
3253390260,2sleep2222-21plymouthd19:25:042
3248852261,2sleep2222-21plymouthd19:20:192
3646998250,3sleep2222-21plymouthd23:55:182
3496278250,2sleep2222-21plymouthd22:16:072
3356170250,2sleep2222-21plymouthd20:40:372
3246946250,2sleep0222-21plymouthd19:20:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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