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2026-06-10 - 10:42
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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 100 highest latencies:
System rackeslot8.osadl.org (updated Wed Jun 10, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11047712530,2sleep2421rcuc/222:00:122
871048992522,1cyclictest0-21swapper/319:20:003
871048992421,1cyclictest0-21swapper/322:50:153
871048992421,1cyclictest0-21swapper/320:50:023
871048992421,1cyclictest0-21swapper/300:30:263
871048992421,1cyclictest0-21swapper/300:30:003
871048992319,1cyclictest0-21swapper/321:25:193
871048992310,7cyclictest12445452sleep323:30:153
13109302220,5sleep2431ktimers/200:10:182
871048992118,1cyclictest0-21swapper/322:55:193
871048992118,1cyclictest0-21swapper/322:30:043
87104899211,15cyclictest1306141-21chrt00:10:113
87104899211,15cyclictest1211837-21taskset23:06:573
87104899202,14cyclictest1138049-21taskset22:20:183
871048992017,1cyclictest0-21swapper/323:00:103
871048992017,1cyclictest0-21swapper/323:00:103
871048992017,1cyclictest0-21swapper/320:15:003
87104899201,14cyclictest1135342-21sleep22:20:003
87104899201,14cyclictest1034882-21chrt21:15:153
87104899192,13cyclictest1288994-21taskset23:56:173
871048991916,1cyclictest0-21swapper/323:40:013
871048991916,1cyclictest0-21swapper/322:40:013
871048991916,1cyclictest0-21swapper/321:30:183
871048991916,1cyclictest0-21swapper/319:40:013
871048991916,1cyclictest0-21swapper/319:40:003
871048991916,1cyclictest0-21swapper/319:25:003
871048991916,1cyclictest0-21swapper/300:00:083
87104899191,15cyclictest1241681-21taskset23:25:223
87104899191,14cyclictest956581-21chrt20:15:093
87104899191,14cyclictest1351382-21taskset00:37:193
87104899191,14cyclictest1351382-21taskset00:37:183
87104899191,14cyclictest1020664-21taskset21:05:133
87104899191,13cyclictest975617-21taskset20:30:013
87104899191,13cyclictest930978-21taskset19:55:013
87104899189,7cyclictest11035662sleep321:57:583
87104899187,7cyclictest11667012sleep322:40:123
871048991815,1cyclictest0-21swapper/323:25:003
871048991815,1cyclictest0-21swapper/323:20:003
871048991815,1cyclictest0-21swapper/321:40:283
871048991814,1cyclictest0-21swapper/321:40:003
87104899181,14cyclictest922710-21taskset19:45:203
87104899181,14cyclictest922710-21taskset19:45:193
87104899181,13cyclictest924617-21taskset19:50:133
87104899181,13cyclictest899035-21taskset19:30:073
87104899181,13cyclictest1327736-21taskset00:21:063
87104899181,13cyclictest1320570-21taskset00:17:573
87104899181,13cyclictest1281661-21taskset23:52:233
87104899181,13cyclictest1220504-21taskset23:14:513
87104899181,13cyclictest1110513-21taskset22:00:293
87104899181,13cyclictest1049303-21taskset21:22:413
87104899181,13cyclictest1013924-21taskset20:59:403
87104899181,12cyclictest1272702-21taskset23:45:233
871048991714,1cyclictest0-21swapper/323:40:013
871048991714,1cyclictest0-21swapper/321:50:123
871048991713,1cyclictest0-21swapper/319:40:023
87104899171,13cyclictest982220-21taskset20:35:153
87104899171,13cyclictest949835-21taskset20:09:403
87104899171,13cyclictest892668-21taskset19:25:103
87104899171,13cyclictest1180894-21taskset22:47:133
87104899171,13cyclictest1087956-21taskset21:47:223
87104899171,13cyclictest1019521-21taskset21:00:233
87104899171,12cyclictest980918-21taskset20:30:213
87104899171,12cyclictest871273-21chrt19:10:113
87104899171,12cyclictest1304734-21chrt00:06:593
87104899171,12cyclictest1149304-21taskset22:25:323
87104899171,12cyclictest1125950-21taskset22:10:283
87104899171,12cyclictest1112337-21taskset22:05:073
87104899171,12cyclictest1027025-21taskset21:10:063
87104899171,12cyclictest1006851-21taskset20:50:253
12822402171,9sleep01282246-21ssh23:54:070
871048991613,1cyclictest0-21swapper/320:20:083
87104899161,12cyclictest994538-21taskset20:41:553
87104899161,12cyclictest943222-21taskset20:01:303
11031462163,6sleep00-21swapper/021:56:440
11032842151,10sleep21103288-21ssh21:57:052
8648852142,5sleep1864888-21apt-get19:05:131
12852712141,2sleep20-21swapper/223:55:202
11717772141,10sleep01166706-21/usr/sbin/munin22:40:210
11200372141,4sleep21120071-21apt-get22:10:122
11181842140,11sleep11118199-21sshd-auth22:05:311
9753002131,2sleep00-21swapper/020:26:500
9489672132,8sleep1949009-21ntpq20:05:231
12051392130,10sleep21205144-21cron23:05:002
11123672132,8sleep01112401-21apt-get22:05:140
10893442131,9sleep01089365-21/usr/sbin/munin21:50:130
10487652130,10sleep11048769-21ssh21:21:081
9374272122,5sleep0937430-21apt-get20:00:120
13456872120,9sleep01346405-21grep00:35:150
13456872120,9sleep01346405-21grep00:35:150
13269752120,9sleep01321591-21/usr/sbin/munin00:20:240
13268332122,6sleep11326876-21ntpq00:20:221
12471082120,9sleep21248852-21cut23:30:182
12262392120,9sleep01226266-21ntpq23:15:250
11435972120,9sleep11143714-21perl22:25:151
11192862120,5sleep21119292-21ssh22:08:432
9901552111,7sleep1991865-21grep20:40:181
9208592111,3sleep20-21swapper/219:45:202
9208592111,3sleep20-21swapper/219:45:192
9169322111,7sleep2916969-21ntpq19:40:212
9114992110,8sleep1911678-21cut19:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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