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2026-07-27 - 14:48
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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 Jul 27, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35339921020,3sleep1321rcuc/120:45:171
227261992724,1cyclictest0-21swapper/319:20:233
227261992421,1cyclictest0-21swapper/323:40:283
227261992421,1cyclictest0-21swapper/300:00:233
227261992320,1cyclictest0-21swapper/322:55:223
227261992320,1cyclictest0-21swapper/321:40:223
227261992320,1cyclictest0-21swapper/321:00:183
227261992320,1cyclictest0-21swapper/320:05:163
227261992320,1cyclictest0-21swapper/320:00:013
227261992220,0cyclictest0-21swapper/323:20:263
227261992219,1cyclictest0-21swapper/323:09:593
227261992219,1cyclictest0-21swapper/323:00:103
227261992219,1cyclictest0-21swapper/322:20:233
227261992118,1cyclictest0-21swapper/322:40:203
227261992118,1cyclictest0-21swapper/322:15:233
58758722016,2sleep0587012-21sendmail-msp23:20:160
227261992018,1cyclictest0-21swapper/321:25:183
227261992018,1cyclictest0-21swapper/321:20:013
227261992017,1cyclictest0-21swapper/323:10:253
227261992017,1cyclictest0-21swapper/322:05:183
227261992017,1cyclictest0-21swapper/321:50:173
227261992017,1cyclictest0-21swapper/321:20:173
227261992017,1cyclictest0-21swapper/320:40:013
227261992017,1cyclictest0-21swapper/320:30:193
227261992017,1cyclictest0-21swapper/300:20:173
227261992017,1cyclictest0-21swapper/300:15:173
22726199201,15cyclictest483072-21taskset22:10:263
227261991917,1cyclictest0-21swapper/319:40:003
227261991917,0cyclictest0-21swapper/321:35:293
227261991916,1cyclictest0-21swapper/322:55:003
22726199191,14cyclictest641681-21taskset23:54:553
22726199191,14cyclictest442876-21taskset21:45:213
22726199191,14cyclictest280323-21taskset19:46:533
22726199191,14cyclictest268012-21taskset19:40:043
22726199191,13cyclictest364231-21taskset20:55:123
22726199188,7cyclictest4219142sleep321:33:263
22726199187,7cyclictest3573912sleep320:48:043
22726199182,12cyclictest351126-21taskset20:44:383
22726199182,12cyclictest312271-21taskset20:11:393
22726199182,12cyclictest312271-21taskset20:11:383
22726199182,12cyclictest293007-21taskset19:55:313
227261991816,1cyclictest0-21swapper/322:30:233
22726199181,14cyclictest501075-21taskset22:25:133
22726199181,13cyclictest710697-21taskset00:35:283
22726199181,13cyclictest695086-21taskset00:25:333
22726199181,13cyclictest672261-21taskset00:12:263
22726199181,13cyclictest648466-21taskset23:56:543
22726199181,13cyclictest616897-21chrt23:36:103
22726199181,13cyclictest603436-21taskset23:30:173
22726199181,13cyclictest603436-21taskset23:30:163
22726199181,13cyclictest461283-21taskset21:59:233
22726199181,13cyclictest358088-21taskset20:50:153
22726199181,13cyclictest254733-21taskset19:26:443
22726199181,13cyclictest232727-21taskset19:10:243
22726199181,12cyclictest516642-21taskset22:35:073
22726199177,7cyclictest2610242sleep319:30:353
227261991714,1cyclictest0-21swapper/319:50:223
22726199171,13cyclictest702998-21taskset00:30:463
22726199171,13cyclictest665082-21taskset00:09:293
22726199171,13cyclictest469279-21taskset22:04:403
22726199171,13cyclictest331539-21taskset20:25:543
22726199171,12cyclictest632499-21taskset23:45:563
22726199171,12cyclictest601213-21taskset23:26:003
22726199171,12cyclictest579383-21taskset23:15:053
22726199171,12cyclictest382984-21taskset21:06:193
22726199171,12cyclictest320187-21taskset20:20:173
5262372160,8sleep1527564-21grep22:40:201
4560852161,3sleep20-21swapper/221:55:182
22726199167,6cyclictest3180002sleep320:15:243
227261991613,1cyclictest0-21swapper/321:10:233
227261991612,1cyclictest0-21swapper/319:15:183
22726199161,12cyclictest532330-21taskset22:45:023
4045482150,11sleep1404601-21ssh21:20:251
6652832141,9sleep1665399-21date00:10:011
4775672141,4sleep1477573-21ssh22:10:141
4532632141,10sleep1453271-21ssh21:53:491
4046022140,10sleep2404646-21ld21:20:262
3966882141,9sleep1396737-21ntpq21:15:251
6582552130,9sleep0659186-21/usr/sbin/munin00:05:190
6019572131,9sleep2601963-21ssh23:28:052
5857782131,2sleep20-21swapper/223:16:422
3567802135,1sleep0171rcu_preempt20:45:250
7052242121,8sleep20-21swapper/200:35:162
6339582120,9sleep2634213-21ssh23:50:012
6327962120,9sleep1632804-21ssh23:46:431
5872392121,8sleep2587012-21sendmail-msp23:20:062
4455872121,4sleep2222-21plymouthd21:49:052
5542562110,1sleep00-21swapper/022:56:310
5244782110,8sleep0524256-21sendmail-msp22:40:020
4618302110,1sleep10-21swapper/122:00:071
3938912111,6sleep2395549-21cut21:15:222
3910852110,8sleep2391145-21munin-run21:15:012
3271192111,7sleep2328641-21kthreadcore20:25:172
3180872110,8sleep1318124-21/usr/sbin/munin20:15:261
2859772111,3sleep2286016-21ntpq19:50:212
2210392111,5sleep30-21swapper/319:05:123
7047462100,7sleep1704754-21ssh00:35:021
6393362101,6sleep1639482-21ntpq23:50:201
6179032100,3sleep1617909-21ssh23:38:531
6096972100,7sleep2609699-21ssh23:32:502
6096972100,7sleep2609699-21ssh23:32:492
5872382100,7sleep1587012-21sendmail-msp23:20:051
5691602102,4sleep1569201-21ntpq23:05:261
5480022101,7sleep21000-21snmpd22:55:082
5394302100,7sleep2539436-21ssh22:48:512
5230532100,2sleep0222-21plymouthd22:36:460
5010632102,5sleep2501066-21apt-get22:25:132
4365552104,4sleep2421523-21kworker/u16:4+nfsiod21:40:312
3381442100,2sleep1222-21plymouthd20:33:261
2936492100,2sleep2222-21plymouthd20:00:082
2680602100,1sleep10-21swapper/119:40:141
2418442100,3sleep2222-21plymouthd19:16:462
2264192101,6sleep2226653-21grep19:05:272
687614290,6sleep00-21swapper/000:21:300
678730291,5sleep2678771-21ntpq00:15:242
649887291,5sleep1649636-21sendmail-msp00:00:061
579455291,3sleep10-21swapper/123:15:131
577195291,5sleep0577452-21sed23:10:260
547690290,3sleep1547696-21ssh22:54:591
524542291,5sleep2524256-21sendmail-msp22:40:142
499531290,2sleep0222-21plymouthd22:21:420
485722290,7sleep0485914-21sed22:15:170
482853291,4sleep0482896-21ntpq22:10:250
467828290,3sleep2467834-21ssh22:00:432
462338290,2sleep00-21swapper/022:00:180
451525290,1sleep00-21swapper/021:50:240
437989290,7sleep00-21swapper/021:44:310
430620290,6sleep1430625-21apt-get21:40:141
370632291,5sleep0370776-21df21:00:110
359207294,3sleep1360189-21kthreadcore20:50:181
331659290,1sleep10-21swapper/120:27:291
325228291,5sleep20-21swapper/220:22:142
324636291,6sleep0324758-21python320:20:260
299643290,2sleep00-21swapper/020:02:500
286717290,2sleep00-21swapper/019:52:040
255254291,4sleep1255287-21apt-get19:30:121
254984291,5sleep2255039-21munin-run19:30:012
232848290,6sleep0233001-21timerwakeupswit19:10:260
221798291,4sleep0222569-21kthreadcore19:05:170
695203281,4sleep0695197-40updatedb.plocat00:25:510
694699280,6sleep2694821-21cat00:25:302
688197280,3sleep10-21swapper/100:23:121
671639281,4sleep0671645-21ssh00:10:440
670969281,4sleep2671018-21ntpq00:10:262
657426281,4sleep0222-21plymouthd00:04:580
625631280,2sleep2222-21plymouthd23:43:352
619048280,5sleep1619461-21cut23:40:181
617103280,2sleep20-21swapper/223:36:422
579642281,4sleep0579847-21hddtemp_smartct23:15:160
578589281,4sleep10-21swapper/123:13:351
578145281,4sleep20-21swapper/223:12:282
571047282,3sleep2222-21plymouthd23:09:232
569108281,4sleep0569153-21ntpq23:05:250
556281280,5sleep1556455-21cut23:00:161
539652281,1sleep1171rcu_preempt22:49:261
507425280,2sleep0222-21plymouthd22:26:550
499489280,6sleep20-21swapper/222:21:372
484241280,1sleep20-21swapper/222:12:472
474926281,4sleep2474965-21ntpq22:05:202
445446280,1sleep00-21swapper/021:48:430
443839281,4sleep1443965-21sensors_temp21:45:271
421958280,6sleep1421964-21ssh21:33:321
414470282,3sleep1222-21plymouthd21:29:311
405693281,1sleep0222-21plymouthd21:21:520
398482280,5sleep0375940-21kworker/u16:4+rpciod21:18:440
356669281,4sleep2356699-21ntpq20:45:222
346368281,4sleep0344705-21sendmail-msp20:40:190
343678281,4sleep1343715-21ntpq20:35:231
338570281,3sleep0338572-21apt-get20:35:150
338020280,2sleep0222-21plymouthd20:31:490
311620281,4sleep1311648-21ntpq20:10:261
311620281,4sleep1311648-21ntpq20:10:251
293693281,4sleep1293846-21df_inode20:00:151
268024281,3sleep0268057-21apt-get19:40:130
242435281,4sleep0242587-21/usr/sbin/munin19:20:130
238774281,4sleep1240670-21cut19:15:201
694410270,1sleep1222-21plymouthd00:25:251
683542271,3sleep20-21swapper/200:20:202
673474271,2sleep0673509-21apt-get00:15:140
651009272,2sleep2249-21jbd2/sda2-800:00:192
649549270,1sleep00-21swapper/023:59:580
649114270,4sleep2649120-21ssh23:58:512
610838270,1sleep0610844-21ssh23:35:160
601122270,1sleep10-21swapper/123:25:471
562236270,1sleep20-21swapper/223:01:382
554125270,1sleep1554131-21ssh22:56:041
546809271,3sleep2546815-21ssh22:52:272
545435271,3sleep0545481-21ntpq22:50:210
538674270,1sleep0222-21plymouthd22:46:330
521938271,3sleep2521990-21ntpq22:35:232
516302270,5sleep20-21swapper/222:34:562
508851271,2sleep1508888-21apt-get22:30:131
477044270,4sleep1477048-21ssh22:09:281
452277270,3sleep2222-21plymouthd21:51:052
429678270,1sleep20-21swapper/221:38:232
415731270,5sleep2416498-21kthreadcore21:30:162
389547270,4sleep1357219-21kworker/u16:0+rpciod21:10:431
384091270,1sleep0384759-21ssh21:10:180
383245271,3sleep1222-21plymouthd21:09:431
382968270,4sleep2222-21plymouthd21:06:082
377094270,3sleep0222-21plymouthd21:05:120
370588270,4sleep1249-21jbd2/sda2-821:00:041
363653271,3sleep0222-21plymouthd20:51:290
360190272,2sleep2362010-21cut20:50:192
344481270,1sleep20-21swapper/220:37:562
338079270,1sleep20-21swapper/220:32:352
322298271,3sleep10-21swapper/120:20:191
318626271,3sleep2222-21plymouthd20:15:552
318041270,4sleep0318084-21ntp_states20:15:250
307844270,5sleep0309230-21cut20:10:200
307844270,5sleep0309230-21cut20:10:200
306157270,4sleep1222-21plymouthd20:09:501
286859270,1sleep10-21swapper/119:53:531
280542270,1sleep10-21swapper/119:49:441
274449271,3sleep2274481-21apt-get19:45:122
273335271,3sleep2222-21plymouthd19:40:272
260475271,3sleep0260519-21ntpq19:30:230
254751270,1sleep10-21swapper/119:26:591
254020270,4sleep0254064-21ntpq19:25:220
248321270,1sleep10-21swapper/119:21:271
226768270,3sleep1222-21plymouthd19:05:461
703699260,2sleep2222-21plymouthd00:32:432
702986260,3sleep1222-21plymouthd00:30:451
696991260,3sleep00-21swapper/000:30:120
671673261,3sleep1671679-21ssh00:10:491
649001260,1sleep1649007-21ssh23:58:271
638437261,3sleep0639335-21memory23:50:190
633040260,1sleep00-21swapper/023:47:270
626470260,2sleep2222-21plymouthd23:45:122
609920260,3sleep1609926-21ssh23:33:281
609920260,3sleep1609926-21ssh23:33:281
608215260,3sleep0222-21plymouthd23:30:220
608215260,3sleep0222-21plymouthd23:30:220
595553260,3sleep0595662-21ps23:25:170
556083261,3sleep0556280-21hddtemp_smartct23:00:150
516711260,2sleep10-21swapper/122:35:141
508823261,3sleep00-21swapper/022:30:080
500997260,3sleep1501003-21ssh22:25:081
499538260,3sleep1222-21plymouthd22:21:441
491454260,1sleep20-21swapper/222:16:152
490461261,3sleep1490553-21ntpq22:15:221
455093261,3sleep1455473-21kthreadcore21:55:171
454040261,3sleep00-21swapper/021:55:120
428929260,1sleep00-21swapper/021:36:120
421399260,1sleep0222-21plymouthd21:31:590
414194260,1sleep20-21swapper/221:28:412
407147260,3sleep00-21swapper/021:25:130
376094261,3sleep2370372-21sendmail-msp21:00:252
370141260,3sleep2222-21plymouthd20:57:492
370073261,2sleep1222-21plymouthd20:56:571
369377260,1sleep00-21swapper/020:55:230
350943260,3sleep2222-21plymouthd20:42:172
344951261,2sleep1344742-21appstreamcli20:40:041
325716260,2sleep0222-21plymouthd20:25:110
306441261,3sleep2306473-21apt-get20:10:152
306441261,3sleep2306473-21apt-get20:10:142
305935260,3sleep0222-21plymouthd20:06:560
293309260,2sleep0222-21plymouthd19:59:260
293280260,2sleep1222-21plymouthd19:59:031
293116260,3sleep2222-21plymouthd19:56:552
279639261,2sleep0279679-21ntpq19:45:230
267665260,3sleep2222-21plymouthd19:39:072
263080261,3sleep0264491-21kthreadcore19:35:210
261644260,3sleep1261648-21find19:35:131
261066260,3sleep2222-21plymouthd19:31:062
247684261,3sleep2247727-21ntpq19:20:242
241876260,3sleep0222-21plymouthd19:17:080
233232260,3sleep2222-21plymouthd19:11:052
230826261,3sleep1232395-21latency19:10:201
706295250,3sleep0707917-21/usr/sbin/munin00:35:170
673514250,2sleep10-21swapper/100:15:151
663782250,2sleep2222-21plymouthd00:05:532
618614250,2sleep0618655-21ssh23:40:130
469695250,2sleep0222-21plymouthd22:05:100
424428250,2sleep10-21swapper/121:35:201
305285250,3sleep2305325-21ntpq20:05:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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