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2025-12-07 - 09:54
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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 Sun Dec 07, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147598270,11rtkit-daemon651313-21ssh00:33:331
172411992320,1cyclictest0-21swapper/323:10:243
17241199231,16cyclictest371400-21taskset21:40:013
2564562212,7sleep0258301-21cut20:15:190
172411992117,1cyclictest0-21swapper/320:50:003
17241199211,15cyclictest539454-21taskset23:24:013
172411992017,1cyclictest0-21swapper/323:55:173
172411992017,1cyclictest0-21swapper/319:50:173
172411991916,1cyclictest0-21swapper/321:45:163
172411991916,1cyclictest0-21swapper/321:10:013
17241199191,15cyclictest547849-21sleep23:30:003
17241199191,14cyclictest223959-21turbostat19:49:593
17241199187,7cyclictest1932702sleep319:25:123
172411991816,1cyclictest0-21swapper/322:55:013
172411991815,1cyclictest0-21swapper/322:45:193
172411991815,1cyclictest0-21swapper/300:00:183
17241199181,13cyclictest395570-21turbostat21:55:003
17241199181,13cyclictest378143-21taskset21:42:213
17241199181,13cyclictest276833-21taskset20:30:203
17241199181,13cyclictest276833-21taskset20:30:193
17241199181,13cyclictest230421-21taskset19:55:133
17241199181,12cyclictest193006-21taskset19:24:563
17241199180,13cyclictest531559-21taskset23:19:553
17241199180,13cyclictest499652-21taskset22:59:553
17241199180,13cyclictest427789-21chrt22:14:563
17241199178,6cyclictest5870882sleep323:53:223
172411991714,1cyclictest0-21swapper/323:05:133
172411991714,1cyclictest0-21swapper/320:55:183
172411991714,1cyclictest0-21swapper/320:50:193
172411991714,1cyclictest0-21swapper/300:20:013
17241199171,13cyclictest466896-21chrt22:38:033
17241199171,13cyclictest466896-21chrt22:38:033
17241199171,13cyclictest360647-21taskset21:30:233
17241199171,13cyclictest281370-21taskset20:35:163
17241199171,12cyclictest565097-21taskset23:40:153
17241199171,12cyclictest551908-21taskset23:30:173
17241199171,12cyclictest475770-21turbostat22:45:013
17241199171,12cyclictest434679-21chrt22:17:233
17241199171,12cyclictest332244-21taskset21:15:173
17241199171,12cyclictest331105-21taskset21:14:563
17241199171,12cyclictest310920-21taskset21:00:133
17241199171,12cyclictest242523-21turbostat20:05:003
17241199170,13cyclictest458888-21chrt22:32:583
172411991613,1cyclictest0-21swapper/321:58:113
172411991613,1cyclictest0-21swapper/319:37:003
172411991613,1cyclictest0-21swapper/319:15:033
17241199161,12cyclictest659100-21taskset00:38:023
17241199161,12cyclictest634091-21taskset00:20:313
17241199161,12cyclictest562046-21taskset23:35:503
17241199161,12cyclictest449965-21taskset22:25:413
17241199161,12cyclictest419602-21chrt22:09:383
17241199161,12cyclictest347588-21taskset21:25:153
17241199161,12cyclictest291995-21taskset20:44:553
17241199161,12cyclictest273328-21chrt20:28:483
17241199161,12cyclictest213521-21taskset19:40:193
17241199161,12cyclictest205397-21turbostat19:35:003
17241199161,12cyclictest178509-21chrt19:14:383
17241199161,11cyclictest604377-21chrt00:05:093
17241199161,11cyclictest500878-21taskset23:00:163
17241199160,12cyclictest649989-21taskset00:30:243
17241199160,12cyclictest403830-21taskset22:00:013
17241199160,11cyclictest255086-21taskset20:15:023
147598160,7rtkit-daemon387578-21cron21:49:592
5801002152,4sleep2580122-21apt-get23:50:132
172411991512,1cyclictest0-21swapper/323:50:003
172411991512,1cyclictest0-21swapper/320:05:183
172411991512,1cyclictest0-21swapper/300:25:203
17241199151,11cyclictest618102-21taskset00:10:333
17241199151,11cyclictest436581-21taskset22:20:173
17241199150,12cyclictest339507-21chrt21:20:133
17241199150,12cyclictest266937-21chrt20:21:103
17241199150,12cyclictest250258-21taskset20:10:203
17241199140,12cyclictest172458-21taskset19:10:013
4584022131,9sleep1458409-21ssh22:31:571
147598130,9rtkit-daemon744-21runrttasks22:13:182
5170222121,8sleep2518060-21grep23:10:182
2862672121,7sleep2286357-21/usr/sbin/munin20:40:172
1822052120,2sleep10-21swapper/119:15:171
147598120,8rtkit-daemon22110-21packagekitd20:42:521
147598120,1rtkit-daemon0-21swapper/020:08:270
6260512110,7sleep1626059-21ssh00:15:291
5774962111,7sleep2577754-21sed23:45:252
4358022110,8sleep2435962-21latency_hist22:20:002
3469872110,8sleep2346995-21ssh21:24:462
147598110,7rtkit-daemon729-21lldpd23:26:481
147598110,7rtkit-daemon515-21gmain19:20:160
147598110,7rtkit-daemon214-21plymouthd23:58:000
147598110,6rtkit-daemon539883-21munin-run23:25:001
147598110,4rtkit-daemon1540-21sendmail-mta22:23:390
147598110,3rtkit-daemon515-21gmain20:23:320
6587582102,6sleep2619072-21kworker/u16:4+xprtiod00:37:102
6112852102,4sleep2562076-21kworker/u16:1+xprtiod00:08:212
5940922100,7sleep1594098-21ssh23:56:061
5702542100,2sleep1570262-21ssh23:41:141
5531792100,1sleep0553317-21/usr/sbin/munin23:30:190
5240012101,2sleep00-21swapper/023:15:170
4102302100,3sleep1410236-21ssh22:02:011
3932872100,7sleep1393491-21unixbench-2d21:50:261
2984822100,2sleep10-21swapper/120:50:141
2127012100,2sleep2213520-21kthreadcore19:40:192
2056432101,5sleep1205676-21apt-get19:35:121
147598100,6rtkit-daemon643549-21ssh00:29:001
147598100,6rtkit-daemon1540-21sendmail-mta20:59:401
147598100,6rtkit-daemon1540-21sendmail-mta00:03:400
147598100,6rtkit-daemon1-21systemd19:28:060
147598100,5rtkit-daemon761-21gmain21:17:591
147598100,4rtkit-daemon476-21wpa_supplicant22:48:451
147598100,2rtkit-daemon214-21plymouthd23:51:470
147598100,1rtkit-daemon0-21swapper/123:46:301
611589291,2sleep00-21swapper/000:08:580
538000290,1sleep20-21swapper/223:20:392
529247290,6sleep2529359-21sed23:15:262
525414290,6sleep1527311-21kthreadcore23:15:221
492903290,6sleep0493915-21kthreadcore22:55:170
465391290,6sleep1465539-21timerwakeupswit22:35:231
465391290,6sleep1465539-21timerwakeupswit22:35:221
459131290,6sleep2459137-21ssh22:33:382
452473290,6sleep0453333-21cut22:30:160
446714290,6sleep1448790-21kthreadcore22:25:211
435690290,7sleep0435697-21sh22:19:470
410210290,6sleep2410218-21ssh22:01:582
401960291,6sleep0401968-21ssh21:56:210
292264291,4sleep2292297-21apt-get20:45:152
254156291,5sleep1254375-21sed20:10:271
14759890,6rtkit-daemon313-21systemd-udevd21:09:431
14759890,5rtkit-daemon515-21gmain23:31:362
14759890,5rtkit-daemon435096-21ssh22:18:251
14759890,5rtkit-daemon22110-21packagekitd23:05:321
14759890,5rtkit-daemon214-21plymouthd22:45:322
14759890,5rtkit-daemon214-21plymouthd21:42:172
14759890,4rtkit-daemon516043-21apt-get23:10:121
14759890,4rtkit-daemon329587-21ssh21:11:231
14759890,4rtkit-daemon214-21plymouthd19:07:130
14759890,1rtkit-daemon0-21swapper/100:39:421
14759890,1rtkit-daemon0-21swapper/019:33:120
580413280,5sleep1580514-21irqcore23:50:161
498906280,5sleep2498912-21sh22:58:112
483995282,4sleep0484030-21apt-get22:50:120
474066281,1sleep10-21swapper/122:41:041
469409281,4sleep0470572-21kthreadcore22:40:190
402467284,2sleep1321rcuc/121:57:271
401031280,1sleep20-21swapper/221:55:192
339770280,6sleep10-21swapper/121:20:161
286079281,4sleep0286112-21apt-get20:40:150
201991280,5sleep1204099-21kthreadcore19:30:201
14759880,5rtkit-daemon720-21snmpd20:25:160
14759880,4rtkit-daemon720-21snmpd22:52:111
14759880,4rtkit-daemon474-21systemd-logind23:41:422
14759880,4rtkit-daemon285437-21vmstat20:35:260
14759880,4rtkit-daemon214-21plymouthd19:12:260
14759880,4rtkit-daemon178726-21munin-node23:49:450
14759880,4rtkit-daemon178726-21munin-node23:29:242
14759880,4rtkit-daemon178726-21munin-node19:42:010
14759880,4rtkit-daemon178726-21munin-node00:16:500
14759880,4rtkit-daemon1-21systemd21:30:402
14759880,3rtkit-daemon730-21ntpd00:22:241
14759880,3rtkit-daemon214-21plymouthd23:00:150
14759880,3rtkit-daemon186660-21runrttasks19:18:080
14759880,1rtkit-daemon0-21swapper/221:29:222
14759880,1rtkit-daemon0-21swapper/120:45:231
14759880,1rtkit-daemon0-21swapper/019:55:380
14759880,1rtkit-daemon0-21swapper/000:11:340
643655270,1sleep00-21swapper/000:29:220
641459270,1sleep20-21swapper/200:25:232
634508271,3sleep2634514-21ssh00:21:322
628284270,1sleep00-21swapper/000:20:050
626188270,5sleep20-21swapper/200:15:462
596633270,4sleep2596755-21hddtemp_smartct00:00:152
556199270,3sleep10-21swapper/123:35:141
539340270,5sleep0214-21plymouthd23:23:460
515674273,2sleep2431ktimers/223:09:532
466821270,4sleep2466827-21ssh22:37:562
466821270,4sleep2466827-21ssh22:37:552
450890270,1sleep00-21swapper/022:28:000
412116271,3sleep2412153-21apt-get22:05:132
403946271,3sleep0403968-21apt-get22:00:140
379849270,1sleep00-21swapper/021:45:070
377951270,1sleep10-21swapper/121:41:491
377569270,2sleep0214-21plymouthd21:41:000
368874271,3sleep0369005-21python321:35:220
362649273,2sleep0236065-21kworker/u16:3+events_power_efficient21:33:580
304419271,3sleep2304437-21munin-run20:55:002
298782270,4sleep0298980-21sed20:50:170
280204270,5sleep1280441-21irqcore20:35:161
275038270,5sleep2276832-21kthreadcore20:30:202
275038270,5sleep2276832-21kthreadcore20:30:192
262095270,4sleep1262828-21kthreadcore20:20:171
251434271,3sleep0253509-21cut20:10:220
236127270,1sleep20-21swapper/219:57:222
14759870,4rtkit-daemon720-21snmpd22:36:040
14759870,4rtkit-daemon720-21snmpd22:36:030
14759870,4rtkit-daemon1-21systemd21:19:402
14759870,3rtkit-daemon730-21ntpd22:10:400
14759870,3rtkit-daemon729-21lldpd20:30:300
14759870,3rtkit-daemon729-21lldpd20:30:290
14759870,3rtkit-daemon506018-21ssh23:01:041
14759870,3rtkit-daemon363160-21apt-get21:35:022
14759870,3rtkit-daemon214-21plymouthd23:38:292
14759870,3rtkit-daemon214-21plymouthd22:40:092
14759870,3rtkit-daemon214-21plymouthd21:50:082
14759870,3rtkit-daemon214-21plymouthd19:46:510
14759870,3rtkit-daemon178726-21munin-node19:52:540
14759870,1rtkit-daemon0-21swapper/121:00:031
14759870,1rtkit-daemon0-21swapper/020:02:170
644272260,1sleep00-21swapper/000:30:110
618188260,4sleep20-21swapper/200:10:452
606103261,3sleep1214-21plymouthd00:05:191
595701260,4sleep20-21swapper/223:59:522
571200260,1sleep00-21swapper/023:43:340
563094260,1sleep00-21swapper/023:38:180
549047263,1sleep10-21swapper/123:30:161
523267261,3sleep0523273-21ssh23:14:080
513959260,1sleep00-21swapper/023:06:000
489193261,3sleep2489316-21python322:50:232
476072261,2sleep00-21swapper/022:45:110
450179260,1sleep20-21swapper/222:26:212
425937260,1sleep10-21swapper/122:10:411
380796260,4sleep10-21swapper/121:45:161
347397261,2sleep1323228-21diskmemload21:25:131
345314260,1sleep00-21swapper/021:21:000
331376260,1sleep00-21swapper/021:15:060
323471260,1sleep20-21swapper/221:10:032
323033260,1sleep20-21swapper/221:07:432
322870260,1sleep00-21swapper/021:05:360
310516260,4sleep0211373-21kworker/0:2+kacpid20:58:520
292257260,1sleep00-21swapper/020:45:090
284880261,3sleep2284951-21ntp_states20:35:202
262830260,3sleep2264794-21kthreadcore20:20:182
260867260,1sleep10-21swapper/120:17:571
260746260,1sleep20-21swapper/220:16:262
248488260,1sleep10-21swapper/120:07:351
242443260,1sleep10-21swapper/120:04:221
236613261,2sleep2236646-21apt-get20:00:142
236330260,1sleep10-21swapper/119:59:581
230124261,2sleep10-21swapper/119:55:001
218202261,3sleep2218015-21/usr/sbin/munin19:45:152
211826260,3sleep1211857-21apt19:40:131
173652260,3sleep2174773-21cut19:10:182
172890262,2sleep1173440-21irqrtprio19:10:171
171441260,2sleep1171558-21python319:05:231
14759860,3rtkit-daemon730-21ntpd19:36:580
14759860,3rtkit-daemon214-21plymouthd22:08:540
644630250,3sleep2644816-21cut00:30:172
619593250,3sleep1619601-21ssh00:14:051
596333250,3sleep10-21swapper/100:00:021
540561250,2sleep00-21swapper/023:25:150
507562250,3sleep2507568-21ssh23:04:452
498837250,3sleep1498845-21ssh22:58:021
442045250,3sleep20-21swapper/222:20:562
417950250,3sleep10-21swapper/122:05:441
394693252,1sleep00-21swapper/021:52:580
371325250,3sleep1371333-21ssh21:39:591
355414250,2sleep10-21swapper/121:30:151
329434250,3sleep00-21swapper/021:11:050
315978250,2sleep0316099-21python321:00:230
310884250,2sleep20-21swapper/221:00:132
309852250,3sleep20-21swapper/220:55:252
273106250,1sleep10-21swapper/120:25:581
248939250,2sleep2248972-21apt-get20:10:162
224190250,3sleep20-21swapper/219:50:082
223599250,3sleep1214-21plymouthd19:45:391
211364250,3sleep20-21swapper/219:37:422
205086250,1sleep20-21swapper/219:31:142
197224251,2sleep20-21swapper/219:25:192
192184250,3sleep1192293-21plymouth19:20:231
187277250,3sleep2187403-21hddtemp_smartct19:20:162
172248251,2sleep2172406-21cyclictest19:10:012
652637240,2sleep0653287-21ssh00:35:150
442446240,2sleep1442454-21ssh22:21:471
273689240,2sleep10-21swapper/120:30:141
273689240,2sleep10-21swapper/120:30:141
248334240,3sleep20-21swapper/220:05:362
193263240,3sleep10-21swapper/119:25:061
347370230,1sleep00-21swapper/021:25:040
267487230,1sleep20-21swapper/220:25:072
178638230,1sleep20-21swapper/219:15:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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