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2026-01-12 - 07:04
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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 highest latencies:
System rackeslot8.osadl.org (updated Mon Jan 12, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
564179992623,1cyclictest0-21swapper/319:50:163
564179992318,2cyclictest7079982sleep320:55:253
56417999231,15cyclictest701996-21taskset20:55:013
564179992219,1cyclictest0-21swapper/320:25:003
564179991916,1cyclictest0-21swapper/319:25:013
56417999191,14cyclictest888322-21taskset23:20:123
9387812180,8sleep014-21ksoftirqd/023:55:190
564179991815,1cyclictest0-21swapper/322:10:003
564179991815,1cyclictest0-21swapper/321:00:143
564179991815,1cyclictest0-21swapper/319:10:163
56417999181,13cyclictest870627-21taskset23:05:173
56417999181,13cyclictest727712-21taskset21:15:003
56417999181,13cyclictest676435-21taskset20:35:133
56417999181,12cyclictest939752-21taskset23:59:553
56417999181,12cyclictest727987-21chrt21:15:133
564179991714,1cyclictest0-21swapper/322:55:143
564179991714,1cyclictest0-21swapper/322:25:003
564179991714,1cyclictest0-21swapper/319:55:143
564179991714,1cyclictest0-21swapper/300:20:193
564179991713,2cyclictest0-21swapper/321:35:013
56417999171,13cyclictest952349-21chrt00:06:523
56417999171,12cyclictest913616-21turbostat23:40:013
56417999171,12cyclictest894703-21taskset23:25:133
56417999171,12cyclictest830407-21chrt22:35:073
56417999171,12cyclictest830407-21chrt22:35:073
56417999170,13cyclictest920011-21chrt23:44:563
56417999170,12cyclictest804574-21taskset22:14:563
56417999168,5cyclictest759786-21sleep21:44:553
564179991613,1cyclictest0-21swapper/321:45:193
56417999161,12cyclictest977201-21chrt00:25:203
56417999161,12cyclictest945091-21chrt00:00:193
56417999161,12cyclictest855472-21chrt22:51:553
56417999161,12cyclictest787015-21taskset22:00:173
56417999161,12cyclictest720886-21chrt21:05:473
56417999161,12cyclictest682783-21taskset20:40:023
56417999161,12cyclictest676108-21taskset20:34:383
56417999161,12cyclictest676108-21taskset20:34:373
56417999161,12cyclictest656242-21chrt20:15:253
56417999161,12cyclictest644531-21taskset20:10:163
56417999161,12cyclictest643607-21chrt20:07:163
56417999161,12cyclictest635918-21taskset20:00:183
56417999161,11cyclictest990637-21taskset00:35:343
56417999161,11cyclictest839036-21taskset22:40:163
56417999160,13cyclictest618075-21chrt19:48:483
56417999160,12cyclictest778977-21taskset21:55:003
56417999160,12cyclictest605147-21sleep19:40:003
564179991512,1cyclictest0-21swapper/323:30:243
564179991512,1cyclictest0-21swapper/323:00:143
564179991512,1cyclictest0-21swapper/322:30:173
564179991512,1cyclictest0-21swapper/321:55:173
564179991512,1cyclictest0-21swapper/300:15:173
56417999151,11cyclictest933057-21taskset23:51:333
56417999151,11cyclictest926330-21taskset23:45:253
56417999151,11cyclictest881284-21taskset23:10:383
56417999151,11cyclictest843200-21taskset22:45:013
56417999151,11cyclictest746564-21chrt21:25:433
56417999151,11cyclictest694941-21taskset20:45:273
56417999151,11cyclictest669161-21chrt20:25:593
56417999151,11cyclictest611613-21taskset19:43:043
56417999151,11cyclictest598379-21taskset19:31:133
56417999151,11cyclictest592071-21chrt19:27:043
56417999151,10cyclictest952841-21taskset00:10:053
56417999150,12cyclictest978449-21chrt00:30:023
56417999150,12cyclictest887692-21taskset23:15:593
56417999150,12cyclictest819204-21taskset22:25:173
56417999150,12cyclictest810684-21chrt22:16:403
56417999150,12cyclictest578800-21chrt19:15:423
56417999150,11cyclictest734351-21taskset21:20:093
56417999141,10cyclictest754986-21chrt21:35:163
307598140,2rtkit-daemon217-21plymouthd19:30:161
307598140,2rtkit-daemon0-21swapper/121:42:321
9256482130,5sleep1925787-21netstat23:45:191
7937422130,2sleep1321rcuc/122:05:161
6502202130,9sleep1650273-21cat20:15:001
9589972125,4sleep0959042-21systemd-run00:15:000
7476002121,8sleep2748317-21sed21:30:152
6851592121,2sleep00-21swapper/020:40:200
5637272120,1sleep30-21swapper/319:06:133
307598120,7rtkit-daemon3256-21sendmail-mta19:56:091
8690352112,5sleep1869068-21apt-get23:05:121
8173722111,7sleep1817388-21latency_hist22:25:001
7343542111,3sleep1734387-21apt-get21:20:121
6914182110,8sleep00-21swapper/020:45:180
6647102111,8sleep1666145-21grep20:25:181
307598110,5rtkit-daemon475-21wpa_supplicant00:33:110
307598110,4rtkit-daemon475-21wpa_supplicant23:11:471
307598110,1rtkit-daemon0-21swapper/123:56:311
9397562101,6sleep2939759-40updatedb.mlocat23:59:592
9271922100,2sleep20-21swapper/223:50:012
9007882100,6sleep11-21systemd23:30:011
8572552101,6sleep2858279-21cut22:55:152
8164742100,3sleep2816530-21ntp_states22:20:202
6945682100,7sleep1694679-21awk20:45:221
5629212103,1sleep1171rcu_preempt19:05:191
307598100,6rtkit-daemon716-21ntpd21:05:041
307598100,6rtkit-daemon3256-21sendmail-mta00:27:590
307598100,1rtkit-daemon0-21swapper/121:00:141
946642291,5sleep0946824-21cut00:05:140
895071291,5sleep2895622-21ps23:25:182
894409290,6sleep2894455-21munin-run23:25:002
862642291,4sleep1862664-21apt-get23:00:111
836833291,4sleep1836866-21apt-get22:40:111
727693291,5sleep2299-21systemd-journal21:15:002
708387290,6sleep1708476-21sed21:00:021
689151291,4sleep2689184-21apt-get20:45:112
658504290,6sleep0660443-21kthreadcore20:20:160
650489291,3sleep0650511-21apt-get20:15:110
30759890,5rtkit-daemon965690-21apt-get00:20:110
30759890,5rtkit-daemon3333005-21packagekitd20:21:541
30759890,5rtkit-daemon217-21plymouthd22:27:011
30759890,4rtkit-daemon810102-21ntp_states22:15:211
30759890,4rtkit-daemon772727-21wc21:50:001
30759890,4rtkit-daemon678006-21tr20:35:181
30759890,4rtkit-daemon610877-21ntpq19:40:181
30759890,4rtkit-daemon475-21wpa_supplicant19:46:181
30759890,1rtkit-daemon0-21swapper/119:36:371
990895280,1sleep00-21swapper/000:38:520
972072281,4sleep20-21swapper/200:25:122
946190280,5sleep2946317-21latency_hist00:05:002
907484281,4sleep0907568-21grep23:35:120
849212280,1sleep00-21swapper/022:48:440
831798281,4sleep2832823-21grep22:35:192
831798281,4sleep2832823-21grep22:35:192
830869281,4sleep1831796-21cut22:35:191
830869281,4sleep1831796-21cut22:35:181
740753282,1sleep1171rcu_preempt21:25:091
716491280,6sleep0718089-21cut21:05:170
682797280,2sleep20-21swapper/220:40:142
656879281,4sleep2656912-21apt-get20:20:102
604909280,1sleep20-21swapper/219:37:302
580818283,2sleep1582068-21cat19:20:191
30759880,4rtkit-daemon716-21ntpd00:15:310
30759880,4rtkit-daemon714-21snmpd21:37:541
30759880,4rtkit-daemon570682-21munin-node23:37:301
30759880,4rtkit-daemon570682-21munin-node23:18:221
30759880,4rtkit-daemon570682-21munin-node22:10:271
30759880,4rtkit-daemon570682-21munin-node22:02:571
30759880,4rtkit-daemon570682-21munin-node21:18:151
30759880,4rtkit-daemon570682-21munin-node19:50:551
30759880,4rtkit-daemon570682-21munin-node00:00:031
30759880,4rtkit-daemon217-21plymouthd21:13:051
30759880,4rtkit-daemon217-21plymouthd20:00:081
30759880,4rtkit-daemon1-21systemd23:50:171
30759880,4rtkit-daemon1-21systemd21:32:421
30759880,4rtkit-daemon1-21systemd00:08:541
30759880,3rtkit-daemon217-21plymouthd23:30:111
30759880,3rtkit-daemon217-21plymouthd22:56:551
30759880,1rtkit-daemon0-21swapper/121:57:341
30759880,1rtkit-daemon0-21swapper/120:41:091
978466271,3sleep1978499-21apt-get00:30:121
933235270,1sleep00-21swapper/023:53:490
919877270,1sleep00-21swapper/023:43:140
907191271,3sleep0907226-21basename23:35:000
875052270,1sleep00-21swapper/023:08:040
855357270,1sleep00-21swapper/022:50:280
843214271,3sleep2843247-21apt-get22:45:132
822945271,4sleep0823062-21python322:25:240
804329270,5sleep20-21swapper/222:11:472
778242271,3sleep0778448-21unixbench-2d21:50:210
759438270,1sleep00-21swapper/021:35:580
753606271,2sleep2753619-21apt-get21:35:122
676399270,2sleep20-21swapper/220:35:132
633863270,4sleep2635917-21grep20:00:182
626713271,3sleep20-21swapper/219:55:182
592298270,4sleep2592343-21munin-run19:30:012
585804270,4sleep0585632-21apt-get19:25:020
30759870,4rtkit-daemon570682-21munin-node20:05:561
30759870,4rtkit-daemon493-21gmain21:50:181
30759870,3rtkit-daemon716-21ntpd23:40:171
30759870,3rtkit-daemon716-21ntpd22:46:251
30759870,3rtkit-daemon217-21plymouthd22:50:071
30759870,3rtkit-daemon217-21plymouthd22:31:011
30759870,3rtkit-daemon217-21plymouthd19:15:031
30759870,3rtkit-daemon1-21systemd23:20:151
30759870,3rtkit-daemon1-21systemd19:25:071
30759870,3rtkit-daemon1-21systemd19:11:211
30759870,3rtkit-daemon1-21systemd00:10:591
30759870,2rtkit-daemon217-21plymouthd20:50:271
30759870,2rtkit-daemon217-21plymouthd20:30:111
30759870,2rtkit-daemon217-21plymouthd20:30:111
30759870,2rtkit-daemon217-21plymouthd20:15:241
990663260,1sleep20-21swapper/200:35:542
978207262,2sleep2431ktimers/200:30:012
972365260,3sleep10-21swapper/100:25:151
965350260,1sleep20-21swapper/200:19:392
946479260,4sleep2946487-21grep00:05:122
940084261,2sleep0940165-21cpuspeed_turbos00:00:140
919747260,1sleep20-21swapper/223:41:362
913324260,1sleep20-21swapper/223:36:362
894138260,1sleep00-21swapper/023:21:340
881627261,2sleep00-21swapper/023:15:010
875054260,1sleep20-21swapper/223:08:052
854915260,3sleep2855021-21python322:50:222
842719260,1sleep00-21swapper/022:41:580
842647260,1sleep20-21swapper/222:41:052
829892260,1sleep00-21swapper/022:31:410
818583262,2sleep2819063-21kthreadcore22:25:172
810849260,1sleep20-21swapper/222:18:442
810621260,1sleep00-21swapper/022:15:500
785609260,1sleep00-21swapper/022:00:110
785606260,4sleep20-21swapper/222:00:102
779586260,3sleep0779770-21cut21:55:140
778805260,1sleep20-21swapper/221:53:232
766466260,3sleep0766493-21grep21:45:120
766154260,1sleep00-21swapper/021:44:450
760028260,1sleep20-21swapper/221:40:092
746782260,1sleep00-21swapper/021:28:290
739603260,3sleep2739658-21ntp_states21:20:212
728350261,3sleep2728704-21irqcore21:15:172
727503260,1sleep00-21swapper/021:12:340
715088261,2sleep20-21swapper/221:05:122
714493260,1sleep20-21swapper/221:00:422
708198260,1sleep00-21swapper/020:57:350
708041263,1sleep2663000-21kworker/u16:3+events_power_efficient20:55:372
698053260,3sleep0700080-21cut20:50:180
695552261,2sleep20-21swapper/220:50:122
682247260,1sleep00-21swapper/020:36:310
676084260,1sleep00-21swapper/020:34:190
676084260,1sleep00-21swapper/020:34:190
675789260,1sleep20-21swapper/220:30:322
675789260,1sleep20-21swapper/220:30:322
663299260,1sleep00-21swapper/020:25:050
624225260,1sleep00-21swapper/019:50:390
619375260,3sleep2619855-21kthreadcore19:50:172
617267260,3sleep2617325-21ntp_states19:45:202
605160260,3sleep0605117-21apt-get19:40:010
604749260,1sleep00-21swapper/019:35:280
598566260,1sleep00-21swapper/019:33:350
585319260,1sleep00-21swapper/019:21:170
579132260,1sleep20-21swapper/219:19:552
569884260,3sleep0570120-21sed19:10:240
564019260,3sleep272-21kcompactd019:09:572
990814250,1sleep10-21swapper/100:37:491
971639250,3sleep20-21swapper/200:22:562
971536250,3sleep10-21swapper/100:21:381
961359251,2sleep1963359-21kthreadcore00:15:171
958925250,3sleep20-21swapper/200:14:062
926516250,3sleep20-21swapper/223:47:492
920736250,3sleep0920931-21hddtemp_smartct23:45:140
899950250,2sleep0217-21plymouthd23:25:230
887706250,3sleep20-21swapper/223:16:112
887657250,3sleep00-21swapper/023:15:330
881560250,3sleep20-21swapper/223:14:102
868429250,3sleep00-21swapper/023:00:340
861994250,3sleep00-21swapper/022:58:460
817177250,3sleep00-21swapper/022:22:310
792903250,3sleep0217-21plymouthd22:05:160
780631250,2sleep2782524-21kthreadcore21:55:162
766628250,3sleep2766794-21grep21:45:142
747344250,3sleep0747424-21fschecks_time21:30:140
746174250,2sleep20-21swapper/221:25:222
740194250,2sleep00-21swapper/021:21:070
729541250,3sleep0731473-21tr21:15:180
666146250,3sleep2668215-21kthreadcore20:25:202
656422250,3sleep20-21swapper/220:17:422
643771250,3sleep20-21swapper/220:09:242
638852250,3sleep0639935-21tr20:05:180
624825250,2sleep00-21swapper/019:55:120
597828250,2sleep2597872-21ps19:30:222
585289250,3sleep20-21swapper/219:20:552
579001250,3sleep00-21swapper/019:18:130
902447240,2sleep2217-21plymouthd23:30:172
864028240,2sleep2865211-21grep23:00:162
799834240,2sleep00-21swapper/022:10:170
798109240,2sleep2217-21plymouthd22:09:062
710061240,2sleep00-21swapper/021:00:160
644356240,1sleep20-21swapper/220:10:162
618030240,3sleep00-21swapper/019:48:140
611689240,2sleep2217-21plymouthd19:44:042
566644240,2sleep2568673-21cut19:10:172
558154240,1sleep00-21swapper/019:05:140
830202230,1sleep00-21swapper/022:35:010
830202230,1sleep00-21swapper/022:35:010
824002230,1sleep20-21swapper/222:30:062
644074230,1sleep00-21swapper/020:10:100
630994230,1sleep00-21swapper/020:00:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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