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2026-05-25 - 18:15
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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 the 376 highest latencies:
System rackeslot8.osadl.org (updated Mon May 25, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3654728992926,1cyclictest0-21swapper/311:00:003
3654728992825,1cyclictest0-21swapper/312:20:023
3654728992825,1cyclictest0-21swapper/310:00:023
3654728992623,1cyclictest0-21swapper/309:05:213
3654728992522,1cyclictest0-21swapper/311:35:173
3654728992422,1cyclictest0-21swapper/311:35:013
3654728992421,1cyclictest0-21swapper/309:25:143
365472899236,6cyclictest4062852-21turbostat11:49:593
3654728992320,1cyclictest0-21swapper/311:20:023
3654728992219,1cyclictest0-21swapper/308:10:013
365472899212,15cyclictest3904735-21taskset10:08:363
3654728992118,1cyclictest0-21swapper/310:55:013
3654728992118,1cyclictest0-21swapper/307:20:163
365472899202,14cyclictest4132919-21taskset12:32:573
365472899202,14cyclictest3771759-21taskset08:36:143
3654728992017,1cyclictest0-21swapper/311:25:113
3654728992017,1cyclictest0-21swapper/309:43:013
3654728992017,1cyclictest0-21swapper/309:35:153
40926912190,1sleep10-21swapper/112:05:381
40507702190,1sleep00-21swapper/011:40:180
365472899192,13cyclictest3921198-21taskset10:20:023
3654728991917,1cyclictest0-21swapper/309:15:133
365472899191,14cyclictest3752599-21taskset08:21:223
365472899182,12cyclictest3816849-21taskset09:10:543
3654728991815,1cyclictest0-21swapper/311:15:133
3654728991815,1cyclictest0-21swapper/310:43:013
3654728991815,1cyclictest0-21swapper/307:20:003
365472899181,13cyclictest4124200-21taskset12:25:453
365472899181,13cyclictest4102576-21taskset12:15:143
365472899181,13cyclictest3998570-21taskset11:07:013
365472899181,13cyclictest3967569-21taskset10:48:173
365472899181,13cyclictest3944901-21taskset10:35:063
365472899181,13cyclictest3944627-21turbostat10:35:003
365472899181,13cyclictest3935170-21taskset10:25:513
365472899181,13cyclictest3919606-21taskset10:16:263
365472899181,13cyclictest3880715-21taskset09:53:003
365472899181,13cyclictest3871487-21taskset09:45:273
365472899181,13cyclictest3803007-21taskset09:00:203
365472899181,13cyclictest3721500-21taskset08:00:143
365472899181,13cyclictest3720700-21taskset07:57:263
365472899181,13cyclictest3682330-21taskset07:28:073
39134622171,10sleep03810510-21diskmemload10:15:110
37403322170,7sleep244-21ksoftirqd/208:15:122
365472899172,12cyclictest3660817-21taskset07:11:023
3654728991716,0cyclictest0-21swapper/308:50:003
3654728991714,1cyclictest0-21swapper/308:10:173
3654728991714,1cyclictest0-21swapper/307:45:173
365472899171,13cyclictest4139955-21taskset12:35:393
365472899171,13cyclictest4085279-21taskset12:01:583
365472899171,13cyclictest4077856-21taskset11:58:173
365472899171,13cyclictest4054385-21taskset11:43:223
365472899171,13cyclictest4006419-21taskset11:11:553
365472899171,13cyclictest3990586-21taskset11:01:413
365472899171,13cyclictest3897373-21turbostat10:05:003
365472899171,13cyclictest3842303-21taskset09:30:023
365472899171,13cyclictest3832731-21taskset09:21:083
365472899171,13cyclictest3797510-21taskset08:57:433
365472899171,13cyclictest3791322-21turbostat08:55:013
365472899171,13cyclictest3746360-21taskset08:18:543
365472899171,13cyclictest3701510-21taskset07:43:143
365472899171,13cyclictest3688814-21taskset07:34:403
365472899171,12cyclictest4100491-21taskset12:10:283
365472899171,12cyclictest4063194-21chrt11:50:113
365472899171,12cyclictest3911652-21taskset10:10:563
365472899171,12cyclictest3753138-21taskset08:25:033
365472899170,13cyclictest3778123-21taskset08:41:003
365472899161,12cyclictest4092705-21taskset12:05:403
365472899161,12cyclictest3714168-21taskset07:50:313
365472899161,11cyclictest3689149-21chrt07:35:133
391118421510,2sleep10-21swapper/110:10:271
3654728991513,1cyclictest0-21swapper/308:30:183
412544221411,1sleep04070377-21kworker/0:0+kacpid12:29:100
39851342131,9sleep03985863-21tr11:00:170
39423042130,5sleep03942353-21ssh10:30:240
39293622131,9sleep23929556-21basename10:25:152
37331252130,9sleep23733310-21users08:05:272
36543642130,1sleep30-21swapper/307:07:033
40019242120,8sleep24003660-21cut11:10:192
39816452120,9sleep13981696-21ntp_states10:55:211
36489652120,8sleep03649516-21ps07:05:160
40686092111,7sleep04068689-21smartctl11:50:250
40621332110,8sleep24062139-21ssh11:48:082
40221532110,4sleep14022159-21ssh11:21:391
40153392110,8sleep24015345-21ssh11:19:402
39748922110,7sleep23974898-21ssh10:51:552
39606052110,6sleep188-21kswapd010:45:031
39044062111,7sleep03904412-21ssh10:07:450
38060082110,7sleep03807685-21kthreadcore09:05:190
37851452111,5sleep23785178-21apt-get08:50:142
37777882111,7sleep13778039-21unixbench_singl08:40:261
37494032111,7sleep03751199-21tr08:20:160
41095842100,7sleep24109586-21ssh12:18:472
41024752101,5sleep14102505-21ssh12:15:121
39915392100,3sleep23991545-21ssh11:04:212
39544072101,6sleep10-21swapper/110:40:191
39272212100,2sleep20-21swapper/210:20:422
39110542101,6sleep03911182-21cat10:10:270
38745532100,4sleep13875345-21kthreadcore09:50:181
37912992101,6sleep03791371-21latency_hist08:55:000
37769252100,1sleep20-21swapper/208:40:202
36965092101,6sleep23697477-21kthreadcore07:40:172
4125134290,6sleep14125139-21sh12:28:151
4118474290,6sleep24118679-21idleruntime12:25:152
4094646291,4sleep24094652-21ssh12:10:122
4040389290,6sleep24041218-21kthreadcore11:35:162
4007215290,1sleep10-21swapper/111:14:101
4000040291,4sleep0222-21plymouthd11:10:120
3993561290,6sleep03995221-21kthreadcore11:05:190
3983316290,7sleep03983312-21sh10:58:210
3975473290,6sleep13975479-21ssh10:53:301
3960864290,6sleep03960985-21fw_packets10:45:140
3952819291,5sleep03952887-21cpuspeed_turbos10:40:130
3944935291,3sleep03944969-21apt-get10:35:120
3921100292,5sleep13920978-21sendmail-msp10:20:011
3915338290,6sleep23916902-21cut10:15:172
3873899291,4sleep03873932-21apt-get09:50:130
3872340290,3sleep23872346-21ssh09:46:392
3868851290,6sleep03870632-21kthreadcore09:45:200
3865750290,6sleep13865770-21latency_hist09:45:011
3851694291,5sleep03853173-21kthreadcore09:35:170
3850237291,4sleep23850272-21apt-get09:35:122
3849352290,7sleep23849358-21ssh09:33:272
3845570290,2sleep13847117-21ssh09:30:171
3828702290,6sleep23829728-21kthreadcore09:20:202
3825392292,4sleep0222-21plymouthd09:17:380
3818774291,4sleep13818776-21apt-get09:15:151
3813759291,5sleep03815544-21cut09:10:200
3803189291,4sleep13803225-21ntpq09:00:221
3771788290,1sleep00-21swapper/008:36:360
3765935291,4sleep13765968-21apt-get08:35:131
3722130290,6sleep13722719-21kthreadcore08:00:171
3714483290,2sleep0222-21plymouthd07:54:390
3703363290,6sleep13704661-21kthreadcore07:45:171
3676401290,1sleep23676398-21apt-get07:25:152
3669942291,5sleep13669725-21sendmail-msp07:20:041
4134032280,4sleep1222-21plymouthd12:35:131
4129706280,1sleep00-21swapper/012:30:200
4116889281,1sleep20-21swapper/212:22:112
4101920282,3sleep0222-21plymouthd12:14:270
4086776281,4sleep04086934-21df_inode12:05:130
4077404281,4sleep20-21swapper/211:57:062
4071011281,4sleep14071006-21apt-get11:55:121
4061533284,2sleep0221rcuc/011:46:290
4054348280,2sleep10-21swapper/111:43:171
4039507281,4sleep14039539-21apt-get11:35:121
4034145281,3sleep10-21swapper/111:30:181
3997454281,5sleep23997493-21open_files11:05:252
3989506281,4sleep13989551-21ntpq11:00:231
3958098281,4sleep23958144-21ntpq10:40:242
3943793281,5sleep13943797-21ssh10:32:491
3935230282,3sleep0222-21plymouthd10:26:010
3905232281,4sleep23905290-21munin-run10:10:002
3882063281,5sleep13882236-21ssh09:55:151
3881804280,2sleep23881810-21ssh09:55:092
3810872281,4sleep23811020-21cpuspeed_turbos09:10:142
3810862281,3sleep13810865-21apt-get09:10:131
3783743280,2sleep2222-21plymouthd08:45:202
3765662281,4sleep03765668-21cron08:35:000
3758124280,6sleep03758284-21tail08:25:210
3727616280,5sleep03727720-21grep08:05:130
3727172280,1sleep00-21swapper/008:03:170
3726372280,5sleep23726416-21ntpq08:00:222
3720902281,4sleep13720975-21munin-run08:00:011
3720032281,4sleep23720058-21ntpq07:55:202
3687804281,4sleep03687892-21ntpq07:30:210
3682394281,3sleep0222-21plymouthd07:28:570
3663529280,4sleep23663562-21apt-get07:15:122
3649523280,5sleep13650415-21kthreadcore07:05:171
4139334270,4sleep04139379-21ntp_states12:35:240
4133099270,4sleep24133105-21ssh12:33:252
4110786270,5sleep04111109-21irqcore12:20:160
4107804270,4sleep04107852-21ntpq12:15:230
4092610270,2sleep2222-21plymouthd12:05:282
4085150270,4sleep14085156-21ssh12:01:371
4078785270,5sleep23984220-21kworker/u16:2+ext4-rsv-conversion12:00:012
4078502271,4sleep04078509-21cron11:59:590
4069751270,4sleep24007277-21kworker/u16:0+rpciod11:52:282
4038717270,5sleep24038723-21ssh11:33:552
4031616270,4sleep04031776-21df_inode11:30:120
4030540270,4sleep0222-21plymouthd11:28:010
4025428271,3sleep14027032-21cut11:25:161
4022525270,1sleep20-21swapper/211:22:412
4014079270,4sleep14014085-21ssh11:16:141
3974693271,3sleep03974699-21ssh10:51:150
3950159271,3sleep23950200-21ntpq10:35:222
3936228271,3sleep13936232-21ssh10:28:471
3928333270,1sleep00-21swapper/010:23:460
3912831272,3sleep23889486-21kworker/u16:5+xprtiod10:14:132
3903145270,4sleep13903271-21sensors_temp10:05:261
3897046270,4sleep2222-21plymouthd10:04:142
3872651271,4sleep11000-21snmpd09:47:341
3865172271,3sleep0222-21plymouthd09:43:310
3859115270,4sleep23859898-21tr09:40:172
3855600271,4sleep13855647-21ssh09:35:241
3840637271,3sleep13840645-21ssh09:26:131
3826560270,4sleep13826335-21sendmail-msp09:20:031
3804778271,2sleep20-21swapper/209:05:162
3803939271,3sleep2222-21plymouthd09:02:522
3797465271,3sleep0222-21plymouthd08:57:100
3778099271,3sleep0222-21plymouthd08:40:410
3771017271,3sleep23771110-21ntpq08:35:222
3758349270,4sleep23758391-21ntpq08:25:232
3746275271,3sleep0222-21plymouthd08:17:480
3746138271,3sleep11000-21snmpd08:16:041
3739927270,1sleep10-21swapper/108:13:411
3739749270,4sleep2222-21plymouthd08:11:202
3714427270,1sleep10-21swapper/107:53:551
3713579271,3sleep23713608-21ntpq07:50:232
3704662271,3sleep23706499-21kthreadcore07:45:192
3701164270,1sleep0222-21plymouthd07:40:270
3694342270,4sleep13694383-21ntpq07:35:231
3688776270,1sleep20-21swapper/207:34:122
3666288270,4sleep13668004-21tr07:15:191
3661079270,1sleep10-21swapper/107:14:261
4140862260,4sleep20-21swapper/212:38:102
4126075261,2sleep14125795-21apt-get12:30:041
4094610261,2sleep14094643-21apt-get12:10:111
4084164260,4sleep04084198-21ntpq12:00:240
4065806260,4sleep14067516-21cut11:50:181
4057372261,2sleep10-21swapper/111:45:181
4048396261,2sleep20-21swapper/211:40:172
4039469261,2sleep0222-21plymouthd11:35:070
4031087260,3sleep24031093-21ssh11:29:262
4017266260,4sleep04018479-21tr11:20:180
4007952260,3sleep00-21swapper/011:15:140
3997402260,3sleep13997451-21ntp_states11:05:241
3981701260,4sleep23976345-21/usr/sbin/munin10:55:222
3960608260,3sleep23960323-21apt-get10:45:042
3937065260,2sleep20-21swapper/210:30:122
3913468260,4sleep10-21swapper/110:15:121
3897244260,3sleep0222-21plymouthd10:04:440
3889801260,3sleep1222-21plymouthd10:00:121
3888102260,1sleep00-21swapper/009:56:260
3879386260,1sleep20-21swapper/209:50:272
3848462261,2sleep00-21swapper/009:30:560
3840905261,3sleep23840911-21ssh09:26:552
3834472260,2sleep00-21swapper/009:25:120
3825351260,3sleep2222-21plymouthd09:17:272
3810173260,1sleep10-21swapper/109:05:521
3799158261,3sleep03800176-21kthreadcore09:00:170
3793986260,3sleep2222-21plymouthd08:55:182
3792977261,2sleep10-21swapper/108:55:171
3790969260,1sleep10-21swapper/108:50:441
3784620261,2sleep1222-21plymouthd08:47:071
3759587260,2sleep10-21swapper/108:30:121
3753832260,3sleep13754646-21kthreadcore08:25:181
3752549260,1sleep10-21swapper/108:20:461
3746772260,2sleep20-21swapper/208:20:112
3720557260,3sleep00-21swapper/007:55:350
3701993260,2sleep00-21swapper/007:45:120
3701468260,4sleep10-21swapper/107:42:411
3689528261,2sleep20-21swapper/207:35:172
3682365260,4sleep10-21swapper/107:28:341
3675813260,1sleep00-21swapper/007:21:230
3663567260,3sleep03663724-21diskstats07:15:130
3660898260,1sleep20-21swapper/207:12:072
3654929261,3sleep03654616-21apt-get07:10:040
3650417260,3sleep2222-21plymouthd07:05:172
4116397250,3sleep10-21swapper/112:20:491
3951208250,3sleep10-21swapper/110:36:371
3826576250,3sleep03826335-21sendmail-msp09:20:060
3778692251,2sleep0222-21plymouthd08:45:020
3759553250,2sleep2222-21plymouthd08:30:092
3739097251,2sleep014-21ksoftirqd/008:10:230
3733441250,2sleep1222-21plymouthd08:07:021
3694299250,3sleep03694339-21ntpq07:35:220
3684155250,3sleep10-21swapper/107:30:181
3669990250,2sleep2222-21plymouthd07:20:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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