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2026-04-09 - 08:25
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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 Thu Apr 09, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
207642289258,20sleep20-21swapper/219:07:142
207892284252,21sleep10-21swapper/119:07:321
190332265234,20sleep00-21swapper/019:05:110
207652262230,21sleep30-21swapper/319:07:153
45652630,1sleep20-21swapper/223:02:422
315432620,0sleep10-21swapper/122:40:111
19472620,0sleep10-21swapper/119:35:201
75582590,0sleep00-21swapper/023:05:010
133912590,0sleep10-21swapper/122:29:061
44222570,0sleep20-21swapper/220:55:002
37342570,0sleep00-21swapper/023:40:480
37342570,0sleep00-21swapper/023:40:480
243712570,0sleep20-21swapper/223:34:422
21672560,0sleep10-21swapper/100:00:111
24482550,0sleep20-21swapper/222:22:022
138182540,0sleep30-21swapper/323:08:283
150142530,0sleep00-21swapper/000:07:390
23352200,0sleep10-21swapper/123:20:271
272652180,0sleep20-21swapper/223:16:042
43442170,0sleep20-21swapper/223:22:002
219632150,0sleep00-21swapper/023:13:210
58122130,0sleep20-21swapper/222:05:042
286602130,0sleep00-21swapper/021:20:120
196122130,0sleep10-21swapper/100:30:141
169912130,0sleep20-21swapper/221:52:032
174872110,0sleep00-21swapper/021:13:400
211179992,4cyclictest18501-21dump-pmu-power20:15:011
211259983,3cyclictest275-21systemd-journal21:45:093
211259980,7cyclictest27315-21ssh21:39:063
211209984,3cyclictest8651-21cron21:05:002
211129981,6cyclictest26228-21idleruntime-cro00:15:000
19187280,0sleep20-21swapper/200:10:132
22138270,1sleep122133-21perf22:15:001
211259974,2cyclictest504-21dbus-daemon21:30:333
211259974,2cyclictest504-21dbus-daemon20:20:223
211259973,3cyclictest658-21snmpd23:21:133
211259973,3cyclictest504-21dbus-daemon21:17:093
211259973,3cyclictest2216-21cut00:19:593
211259973,1cyclictest0-21swapper/321:21:113
211259972,2cyclictest26473-21expr23:55:123
211259970,0cyclictest0-21swapper/323:17:523
211209975,2cyclictest28-21ksoftirqd/219:50:012
211209973,3cyclictest658-21snmpd21:25:512
211209973,3cyclictest560-21gdbus19:20:012
211209973,2cyclictest275-21systemd-journal21:55:112
211179973,3cyclictest658-21snmpd21:36:061
211179973,2cyclictest658-21snmpd22:07:141
211179972,3cyclictest275-21systemd-journal21:58:531
211129973,3cyclictest8454-21df_inode23:05:130
211129973,3cyclictest658-21snmpd00:15:180
211129973,3cyclictest504-21dbus-daemon19:27:490
211129973,3cyclictest3993-21memory19:40:150
211129973,1cyclictest0-21swapper/022:03:310
211129970,1cyclictest0-21swapper/022:33:160
4617260,0sleep20-21swapper/220:55:122
21471260,0sleep10-21swapper/123:51:501
211259966,0cyclictest0-21swapper/323:52:163
211259966,0cyclictest0-21swapper/322:17:153
211259965,1cyclictest15794-1kworker/u9:122:05:023
211259964,1cyclictest27097-21irqstats19:20:153
211259964,1cyclictest10883-21diskmemload00:35:123
211259963,2cyclictest9605-21apt23:45:123
211259963,2cyclictest9455-21head21:05:113
211259963,2cyclictest850-21ntpq23:00:183
211259963,2cyclictest7342-21basename21:00:143
211259963,2cyclictest658-21snmpd22:23:453
211259963,2cyclictest658-21snmpd20:17:013
211259963,2cyclictest6537-21awk19:45:183
211259963,2cyclictest504-21dbus-daemon20:15:013
211259963,2cyclictest4607-21cat21:25:123
211259963,2cyclictest361-21ssh22:40:183
211259963,2cyclictest3176-21awk00:00:163
211259963,2cyclictest29700-21processes19:25:183
211259963,2cyclictest29096-21cpuspeed_turbos21:40:113
211259963,2cyclictest275-21systemd-journal20:50:013
211259963,2cyclictest26334-21uname23:35:153
211259963,2cyclictest24432-21ls22:55:213
211259963,2cyclictest23234-21sshd19:14:403
211259963,2cyclictest1939-21date20:50:003
211259963,2cyclictest19358-21ls00:30:133
211259963,2cyclictest17902-21grep23:30:153
211259963,2cyclictest16174-21awk22:30:183
211259963,2cyclictest15861-21users20:05:203
211259963,2cyclictest13453-21wc20:00:183
211259963,1cyclictest0-21swapper/300:21:593
211259962,3cyclictest658-21snmpd23:41:293
211259962,3cyclictest658-21snmpd23:41:293
211259962,3cyclictest658-21snmpd22:36:453
211259962,3cyclictest658-21snmpd22:01:293
211259962,3cyclictest658-21snmpd21:51:413
211259962,3cyclictest658-21snmpd19:52:073
211259962,3cyclictest658-21snmpd19:16:153
211259962,3cyclictest658-21snmpd00:05:513
211259962,3cyclictest426-21cat19:35:013
211259962,3cyclictest23913-21cat20:25:163
211259962,3cyclictest18774-21expr00:10:113
211259962,3cyclictest11507-21ls00:25:153
211259962,1cyclictest0-21swapper/322:25:193
211259960,6cyclictest0-21swapper/323:13:033
211259960,6cyclictest0-21swapper/322:50:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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