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2026-04-15 - 11:44
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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 Wed Apr 15, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38807022310,2sleep1321rcuc/121:00:001
3737131992623,1cyclictest0-21swapper/320:50:023
373713199222,15cyclictest4109293-21taskset23:26:323
373713199222,14cyclictest3880695-21turbostat21:00:003
3737131992219,1cyclictest0-21swapper/320:25:003
373713199221,15cyclictest3916903-21taskset21:25:003
40231542210,10sleep24023201-21ld22:30:232
373713199212,14cyclictest24547-21taskset00:38:203
3737131992119,1cyclictest0-21swapper/321:00:013
3737131992118,1cyclictest0-21swapper/322:45:213
3737131992118,1cyclictest0-21swapper/319:35:013
373713199211,15cyclictest4002220-21taskset22:20:013
373713199211,15cyclictest3784112-21taskset19:42:183
373713199209,7cyclictest4179764-21taskset00:13:193
373713199209,7cyclictest38680552sleep320:50:053
373713199201,8cyclictest3803611-21turbostat20:04:553
3737131992018,1cyclictest0-21swapper/322:00:003
3737131992017,1cyclictest0-21swapper/322:40:023
3737131992017,1cyclictest0-21swapper/322:30:133
373713199201,15cyclictest3828110-21taskset20:15:203
373713199201,15cyclictest3797465-21taskset19:55:123
41326222191,6sleep04132628-21sh23:41:590
41326222191,6sleep04132628-21sh23:41:580
3737131991917,1cyclictest0-21swapper/323:00:013
3737131991916,1cyclictest0-21swapper/323:40:263
3737131991916,1cyclictest0-21swapper/323:40:253
3737131991916,1cyclictest0-21swapper/323:20:153
3737131991916,1cyclictest0-21swapper/322:50:233
3737131991916,1cyclictest0-21swapper/300:30:163
3737131991915,1cyclictest0-21swapper/322:20:003
373713199191,14cyclictest4172393-21taskset00:09:303
373713199191,14cyclictest3899247-21taskset21:10:253
373713199191,13cyclictest4094039-21taskset23:17:223
373713199191,13cyclictest3979257-21taskset22:05:133
3737131991816,1cyclictest0-21swapper/323:00:143
3737131991816,1cyclictest0-21swapper/322:00:243
3737131991815,1cyclictest0-21swapper/322:10:163
3737131991815,1cyclictest0-21swapper/321:45:173
3737131991815,1cyclictest0-21swapper/321:40:003
3737131991815,1cyclictest0-21swapper/300:25:133
373713199181,14cyclictest1870-21taskset00:24:503
373713199181,13cyclictest4180672-21taskset00:15:113
373713199181,13cyclictest4148116-21taskset23:52:023
373713199181,13cyclictest4141405-21turbostat23:50:013
373713199181,13cyclictest4124790-21taskset23:36:463
373713199181,13cyclictest4072445-21taskset23:05:153
373713199181,13cyclictest3946855-21taskset21:42:373
373713199181,13cyclictest3930910-21taskset21:31:143
373713199181,13cyclictest3907565-21taskset21:15:423
373713199181,13cyclictest3790467-21taskset19:46:223
41111702171,9sleep14111405-21irqcore23:30:161
373713199172,12cyclictest4163497-21taskset00:01:123
3737131991714,1cyclictest0-21swapper/319:15:033
373713199171,13cyclictest3822443-21taskset20:10:313
373713199171,13cyclictest3775846-21taskset19:35:193
373713199171,12cyclictest4080937-21taskset23:10:163
373713199171,12cyclictest4039385-21taskset22:40:543
373713199171,12cyclictest4013833-21taskset22:25:193
373713199171,12cyclictest3961731-21taskset21:50:423
373713199171,12cyclictest3854606-21taskset20:35:463
373713199171,12cyclictest3848170-21taskset20:30:403
373713199171,12cyclictest3791049-21chrt19:50:123
373713199171,11cyclictest3890778-21chrt21:05:203
3737131991613,1cyclictest0-21swapper/323:55:203
373713199161,12cyclictest4110730-21taskset23:30:063
373713199161,12cyclictest3922942-21taskset21:25:283
373713199161,12cyclictest3860422-21taskset20:40:223
373713199161,12cyclictest3841484-21taskset20:25:283
373713199161,12cyclictest3816062-21taskset20:05:383
373713199161,12cyclictest3764741-21taskset19:26:173
373713199161,12cyclictest3758236-21taskset19:20:283
373713199160,12cyclictest3743181-21taskset19:10:503
41547002156,2sleep2171rcu_preempt23:55:232
40415592150,12sleep14042086-21cut22:45:181
40178692151,2sleep00-21swapper/022:30:130
40153442140,10sleep14015398-21ntpq22:25:211
38928072140,11sleep23892991-21sed21:05:282
129998140,9rtkit-daemon3985466-21ssh22:07:020
129998140,10rtkit-daemon4093988-21ssh23:17:140
6192130,2sleep00-21swapper/000:21:270
39918142130,3sleep134-21ksoftirqd/122:10:161
39030382131,9sleep03904574-21grep21:15:200
37308942131,6sleep23730917-21apt-get19:05:122
129998130,8rtkit-daemon3745703-21ntpq19:15:031
129998130,5rtkit-daemon4170152-21cut00:05:210
129998130,3rtkit-daemon222-21plymouthd23:58:030
41888262121,8sleep24189061-21irqcore00:20:172
41872752121,7sleep2222-21plymouthd00:17:402
41336402120,8sleep24133840-21latency_hist23:45:002
41336402120,8sleep24133840-21latency_hist23:45:002
41255212121,4sleep14125525-21ssh23:38:581
129998120,8rtkit-daemon24063-21ssh00:36:540
129998120,4rtkit-daemon3743774-21munin-node23:32:260
6881110,2low-memory-moni0-21swapper/200:13:202
41685032110,1sleep2421rcuc/200:05:202
40877142110,7sleep14087519-21/usr/sbin/munin23:15:161
39689362111,7sleep03969043-21sendmail_mailtr21:55:260
39462572110,2sleep00-21swapper/021:40:500
38359262111,6sleep03835959-21apt-get20:25:120
129998110,7rtkit-daemon4140013-21ssh23:45:530
129998110,7rtkit-daemon4066962-21kthreadcore23:00:190
129998110,4rtkit-daemon703-21mta-sts-daemon20:13:151
41572772100,4sleep14157283-21ssh00:00:121
41104372101,6sleep14110496-21systemd-run23:30:001
41049062100,7sleep04106552-21kthreadcore23:25:180
40779862100,7sleep04077992-21ssh23:05:330
40635832100,7sleep14063587-21ssh22:58:491
40595532102,5sleep04061467-21cut22:55:190
40087112100,2sleep14008713-21ssh22:22:001
39921122101,6sleep0222-21plymouthd22:10:200
39712062100,1sleep20-21swapper/222:00:042
39708802100,8sleep13970884-21ssh21:59:561
39396832100,7sleep13939689-21ssh21:39:181
39325332102,4sleep03932527-21apt-get21:35:120
38541892100,7sleep03854318-21cat20:35:270
38487822101,5sleep23848815-21apt-get20:35:142
38484862101,2sleep0222-21plymouthd20:34:430
38042632101,6sleep13804494-21irqcore20:00:161
37846042102,4sleep13784637-21apt-get19:45:121
37839792100,3sleep2222-21plymouthd19:40:362
37778372101,5sleep23778041-21cat19:40:002
37707352106,2sleep20-21swapper/219:30:272
37373522101,5sleep03737348-21apt-get19:10:120
250882100,7sleep225350-21date00:40:012
129998100,6rtkit-daemon3893511-21diskmemload22:41:030
129998100,4rtkit-daemon3783389-21ntpq19:40:221
129998100,3rtkit-daemon3923693-21ssh21:27:441
129998100,3rtkit-daemon222-21plymouthd20:05:381
129998100,3rtkit-daemon1-21systemd22:29:370
129998100,2rtkit-daemon222-21plymouthd19:32:221
4180674290,6sleep04180829-21df_inode00:15:130
4179023290,3sleep14179027-21ssh00:11:101
4158265291,2sleep00-21swapper/000:00:190
4132702291,5sleep14132706-21ssh23:42:111
4132702291,5sleep14132706-21ssh23:42:111
4095701290,6sleep04096255-21cut23:20:170
4032645290,1sleep00-21swapper/022:38:550
4015669290,6sleep24010080-21/usr/sbin/munin22:25:272
4004724291,5sleep04006568-21kthreadcore22:20:190
4000992291,5sleep04000998-21ssh22:17:140
3999822290,2sleep2222-21plymouthd22:15:252
3962004293,1sleep1171rcu_preempt21:51:291
3955385290,2sleep13955391-21ssh21:49:491
3949897290,6sleep03951567-21kthreadcore21:45:200
3908100290,2sleep2222-21plymouthd21:17:182
3896503291,5sleep13898215-21cut21:10:211
3880993290,6sleep23881149-21diskstats21:00:142
3877846290,6sleep03879497-21latency20:55:190
3861682290,6sleep23861827-21sh20:45:152
3842361291,4sleep13842395-21apt-get20:30:111
3818069290,6sleep03819175-21kthreadcore20:10:170
3810315291,4sleep03810312-21apt-get20:05:130
3783373290,6sleep03783414-21ntpq19:40:220
3744007290,2sleep2171rcu_preempt19:15:032
24940290,7sleep124946-21ssh00:39:361
12999890,5rtkit-daemon739-21wpa_supplicant21:09:321
12999890,5rtkit-daemon739-21wpa_supplicant20:43:111
12999890,5rtkit-daemon703-21mta-sts-daemon22:46:560
12999890,4rtkit-daemon3737057-21appstreamcli19:10:041
12999890,1rtkit-daemon0-21swapper/119:07:251
12999890,1rtkit-daemon0-21swapper/000:26:530
7463281,4sleep27495-21ssh00:25:222
4133952281,3sleep24133989-21apt-get23:45:122
4103006281,3sleep24103009-21apt-get23:25:122
4054273281,4sleep04054360-21ssh22:50:270
3987516280,5sleep23988362-21cut22:10:142
3985290280,5sleep13985297-21ssh22:06:301
3971501280,5sleep13971700-21cat22:00:151
3945618281,4sleep23945669-21ps21:40:242
3900660282,3sleep0222-21plymouthd21:13:150
3841828281,4sleep2222-21plymouthd20:26:362
3834785281,4sleep03834815-21ntpq20:20:230
3810464281,4sleep23810529-21tune2fs20:05:142
3809825280,6sleep20-21swapper/220:02:372
3803464280,1sleep00-21swapper/019:58:350
3803254280,2sleep10-21swapper/119:55:561
3791051281,4sleep03791207-21diskstats19:50:130
3790414280,1sleep0222-21plymouthd19:45:450
3771729281,3sleep00-21swapper/019:35:130
3759349281,4sleep23760281-21cut19:25:172
3752420281,3sleep23752453-21apt-get19:20:132
1930281,4sleep11977-21ssh00:25:001
12999880,5rtkit-daemon222-21plymouthd19:52:201
12999880,4rtkit-daemon739-21wpa_supplicant19:20:081
12999880,4rtkit-daemon703-21mta-sts-daemon22:01:270
12999880,4rtkit-daemon703-21mta-sts-daemon21:33:440
12999880,4rtkit-daemon703-21mta-sts-daemon21:04:471
12999880,4rtkit-daemon3915596-21ssh21:21:361
12999880,4rtkit-daemon3908292-21ssh21:17:501
12999880,4rtkit-daemon3848937-21cpuspeed_turbos20:35:141
12999880,4rtkit-daemon3743774-21munin-node23:13:350
12999880,4rtkit-daemon3743774-21munin-node20:52:571
12999880,4rtkit-daemon3743774-21munin-node19:25:401
12999880,4rtkit-daemon1-21systemd23:54:170
12999880,4rtkit-daemon1-21systemd21:51:070
12999880,4rtkit-daemon1-21systemd00:30:470
12999880,4rtkit-daemon1-21systemd00:11:050
12999880,3rtkit-daemon4124763-21ssh23:36:420
12999880,3rtkit-daemon2195379-21ntpd20:25:251
12999880,1rtkit-daemon0-21swapper/120:23:421
12999880,1rtkit-daemon0-21swapper/119:35:591
8476270,4sleep1222-21plymouthd00:26:371
4187366270,5sleep14187372-21ssh00:17:551
4170438271,3sleep14170480-21ntpq00:05:241
4149465270,3sleep14149471-21ssh23:55:141
4148542271,3sleep14148546-21ssh23:53:211
4139268270,1sleep1222-21plymouthd23:45:231
4117431270,1sleep20-21swapper/223:32:582
4102018270,1sleep14102024-21ssh23:23:071
4100546271,3sleep24100584-21ntpq23:20:242
4093517270,4sleep24093523-21ssh23:15:502
4080234270,4sleep24080935-21cut23:10:172
4063492271,3sleep20-21swapper/222:58:342
4054156271,3sleep24054188-21ntpq22:50:242
4047870270,1sleep20-21swapper/222:48:112
4040319270,5sleep1222-21plymouthd22:43:371
4025580270,1sleep10-21swapper/122:35:111
4008677270,4sleep20-21swapper/222:21:492
3994621271,3sleep1222-21plymouthd22:15:161
3957242270,5sleep23958880-21kthreadcore21:50:182
3931486270,4sleep23931492-21ssh21:32:592
3924956270,4sleep13925055-21sort21:30:161
3922334271,3sleep03922380-21ntpq21:25:220
3917074271,3sleep23917077-21apt-get21:25:122
3916153271,4sleep20-21swapper/221:23:172
3893294270,1sleep00-21swapper/021:07:260
3880466271,3sleep2222-21plymouthd20:57:262
3868051270,4sleep03867844-21appstreamcli20:50:030
3848498270,3sleep2222-21plymouthd20:34:532
3830677270,4sleep23831702-21cut20:20:172
3828881270,2sleep20-21swapper/220:15:452
3824050270,4sleep03825012-21tr20:15:180
3822494270,3sleep2222-21plymouthd20:11:112
3795823270,4sleep23796156-21grep19:50:192
3789728270,4sleep23789803-21ntpq19:45:212
3757625270,3sleep03757669-21ntpq19:20:220
3739951271,4sleep23741728-21kthreadcore19:10:192
3736632270,3sleep0222-21plymouthd19:05:510
12999870,4rtkit-daemon703-21mta-sts-daemon20:45:041
12999870,3rtkit-daemon1000-21snmpd20:15:061
4162672260,3sleep24162711-21ntpq00:00:242
4141642260,4sleep2222-21plymouthd23:50:012
4079767260,3sleep14079804-21apt-get23:10:121
4078992260,1sleep20-21swapper/223:08:362
4077342260,3sleep1222-21plymouthd23:05:221
4069596261,2sleep24069636-21ntpq23:00:222
4033361260,4sleep2222-21plymouthd22:40:092
4032657260,3sleep2222-21plymouthd22:38:572
4023095260,3sleep14023153-21ssh22:30:221
3985082261,2sleep20-21swapper/222:05:542
3969786261,3sleep23969790-21ssh21:56:352
3947994260,2sleep20-21swapper/221:45:132
3943926260,2sleep13945303-21ssh21:40:191
3887015260,1sleep00-21swapper/021:03:380
3861166260,3sleep0222-21plymouthd20:42:200
3855265260,2sleep20-21swapper/220:40:142
3804062260,3sleep03804262-21hddtemp_smartct20:00:150
3797430261,2sleep20-21swapper/219:55:122
3765695261,2sleep00-21swapper/019:30:160
3764898260,1sleep00-21swapper/019:28:200
3745937260,2sleep00-21swapper/019:15:130
3730655260,2sleep30-21swapper/319:05:013
17365260,3sleep217371-21ssh00:35:012
4124391250,3sleep2222-21plymouthd23:35:342
4070604250,3sleep11000-21snmpd23:01:421
4054708250,2sleep1222-21plymouthd22:50:311
3938620250,2sleep2222-21plymouthd21:36:112
3915295250,2sleep0222-21plymouthd21:20:450
3899938250,2sleep2222-21plymouthd21:11:062
3868067250,2sleep2222-21plymouthd20:50:122
3861633250,2sleep0222-21plymouthd20:45:050
16023250,2sleep1222-21plymouthd00:31:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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