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2026-06-19 - 10:32
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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 rackaslot8.osadl.org (updated Fri Jun 19, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
114492295240,17sleep20-21swapper/219:09:442
112062280249,21sleep00-21swapper/019:06:440
113652279249,20sleep10-21swapper/119:08:381
111172270212,47sleep30-21swapper/319:05:433
100592680,0sleep00-21swapper/022:51:130
256512580,0sleep30-21swapper/321:24:053
195102580,0sleep10-21swapper/123:16:161
171612580,3sleep228-21ksoftirqd/221:19:002
48252540,0sleep10-21swapper/122:10:021
252792540,0sleep20-21swapper/222:02:212
209262540,0sleep10-21swapper/120:40:111
80262190,1sleep0131rcuc/021:51:550
139802190,0sleep30-21swapper/322:34:543
255892160,0sleep30-21swapper/323:40:003
209542160,0sleep30-21swapper/323:17:223
1157499118,2cyclictest12-21ksoftirqd/023:00:020
1157499108,1cyclictest12-21ksoftirqd/000:00:010
115829996,2cyclictest2230-21ssh00:24:122
115749998,1cyclictest12-21ksoftirqd/022:40:010
18183280,0sleep10-21swapper/121:19:481
13170280,0sleep20-21swapper/220:20:192
115829983,3cyclictest275-21systemd-journal00:35:022
115799986,2cyclictest23151-21kworker/1:023:07:401
115799982,3cyclictest25816-21munin-run19:40:001
115799980,7cyclictest27789-21ssh00:20:101
115799980,1cyclictest10512-21ntp_states20:15:171
6819270,0sleep30-21swapper/323:09:173
4518270,0chrt0-21swapper/121:50:111
21348270,0sleep30-21swapper/322:39:113
115859974,2cyclictest851-21apt-get23:25:113
115859973,3cyclictest658-21snmpd21:02:403
115859973,3cyclictest658-21snmpd20:12:363
115859973,3cyclictest275-21systemd-journal21:12:013
115829976,1cyclictest28-21ksoftirqd/222:20:022
115829973,3cyclictest560-21gdbus19:30:002
115829973,3cyclictest275-21systemd-journal22:52:122
115829973,2cyclictest275-21systemd-journal23:07:112
115799973,3cyclictest658-21snmpd23:37:001
115799973,3cyclictest658-21snmpd20:21:001
115799973,3cyclictest275-21systemd-journal22:16:451
115799972,4cyclictest504-21dbus-daemon22:28:111
115799970,4cyclictest4863-21basename20:05:001
115749974,2cyclictest1443-21cron23:45:000
115749973,3cyclictest658-21snmpd21:11:310
115749973,3cyclictest0-21swapper/023:35:120
115749973,2cyclictest14158-21pluginstate22:35:010
115749971,3cyclictest31259-21apt-get22:45:110
26991260,0sleep10-21swapper/123:20:361
16880260,5sleep017068-21cstates19:20:110
115859966,0cyclictest0-21swapper/323:31:523
115859965,1cyclictest1743-21diskmemload22:50:593
115859963,2cyclictest501-21in:imuxsock21:20:003
115859963,2cyclictest3902-21ssh00:25:043
115859963,2cyclictest30797-21sh00:21:163
115859963,2cyclictest2946-21ssh21:49:223
115859963,2cyclictest25684-21taskset19:38:373
115859963,2cyclictest25021-21ssh22:02:103
115859963,2cyclictest20399-21cat00:35:003
115859963,2cyclictest16370-21awk22:55:163
115859963,1cyclictest0-21swapper/323:40:583
115859962,3cyclictest674-21lldpd23:53:073
115859962,3cyclictest658-21snmpd22:22:313
115859962,3cyclictest658-21snmpd22:07:033
115859962,3cyclictest658-21snmpd21:36:183
115859962,3cyclictest658-21snmpd21:27:163
115859962,3cyclictest658-21snmpd21:08:073
115859962,3cyclictest658-21snmpd20:52:113
115859962,3cyclictest658-21snmpd20:47:523
115859962,3cyclictest658-21snmpd20:27:033
115859962,3cyclictest658-21snmpd20:08:333
115859962,3cyclictest658-21snmpd20:00:233
115859962,3cyclictest658-21snmpd19:50:083
115859962,3cyclictest658-21snmpd19:44:203
115859962,3cyclictest658-21snmpd19:26:583
115859962,3cyclictest658-21snmpd19:22:283
115859962,3cyclictest658-21snmpd19:16:013
115859962,3cyclictest658-21snmpd00:00:033
115859962,3cyclictest504-21dbus-daemon22:50:013
115859962,3cyclictest504-21dbus-daemon00:00:003
115859962,3cyclictest3969-21cut00:05:183
115859962,3cyclictest275-21systemd-journal19:59:133
115859962,3cyclictest25804-21memory23:20:163
115859962,3cyclictest20705-21cat21:40:143
115859962,3cyclictest18863-21expr20:35:133
115859962,3cyclictest12880-21expr21:55:133
115859962,1cyclictest0-21swapper/323:01:003
115859962,1cyclictest0-21swapper/321:31:513
115859960,6cyclictest0-21swapper/322:42:273
115859960,6cyclictest0-21swapper/300:15:253
115859960,5cyclictest11086-21find00:10:113
115859960,0cyclictest0-21swapper/323:45:583
115859960,0cyclictest0-21swapper/322:13:563
115829966,0cyclictest0-21swapper/200:26:452
115829965,1cyclictest51250irq/139-enp4s0-23:22:162
115829963,2cyclictest7058-21rm22:10:282
115829963,2cyclictest658-21snmpd20:55:462
115829963,2cyclictest658-21snmpd19:40:022
115829963,2cyclictest3473-21head00:05:142
115829963,2cyclictest3402-21proc_pri21:10:182
115829963,2cyclictest31444-21sh00:02:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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