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2026-03-18 - 08:22
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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 Wed Mar 18, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
321782304279,16sleep20-21swapper/219:06:572
322702284252,21sleep10-21swapper/119:08:091
324032258229,19sleep30-21swapper/319:09:533
320822252222,20sleep00-21swapper/019:05:430
295742590,0sleep30-21swapper/300:09:553
261142590,0sleep30-21swapper/320:05:133
216952590,0sleep00-21swapper/021:05:190
161202580,0sleep00-21swapper/021:25:130
96832570,0sleep30-21swapper/321:40:303
121532560,0sleep20-21swapper/219:35:012
247202550,0sleep20-21swapper/223:46:502
171112550,0sleep00-21swapper/023:42:210
107682550,0sleep00-21swapper/000:37:100
124462190,0sleep10-21swapper/122:40:311
154622180,0sleep00-21swapper/023:02:130
216602160,0sleep30-21swapper/321:48:203
193452150,0sleep00-21swapper/019:50:130
103692140,0sleep30-21swapper/321:21:363
216602120,0sleep30-21swapper/322:07:293
192322110,1sleep10-21swapper/122:25:171
221032100,0sleep30-21swapper/319:55:153
325289986,2cyclictest19550-21ssh23:24:572
325249981,4cyclictest32172-21dump-pmu-power21:55:021
325209980,7cyclictest5083-21ssh00:34:110
325319973,3cyclictest275-21systemd-journal20:33:343
325289976,1cyclictest28-21ksoftirqd/223:15:012
325289976,1cyclictest28-21ksoftirqd/221:15:002
325289974,2cyclictest658-21snmpd22:07:362
325289973,3cyclictest275-21systemd-journal23:16:172
325289972,3cyclictest275-21systemd-journal22:15:042
325249976,1cyclictest22-21ksoftirqd/123:20:011
325249976,1cyclictest0-21swapper/123:55:111
325249974,2cyclictest9891-21cron19:30:001
325249974,2cyclictest8743-21tr22:00:151
325249973,3cyclictest6023-21sshd20:30:331
325249973,3cyclictest560-21gdbus23:40:011
325249972,3cyclictest30361-21munin-run00:30:001
325209975,1cyclictest0-21swapper/000:07:350
325209973,3cyclictest275-21systemd-journal21:30:220
325209973,3cyclictest275-21systemd-journal00:28:340
20667270,0sleep10-21swapper/122:06:441
18837270,0sleep30-21swapper/321:26:453
325319966,0cyclictest0-21swapper/322:39:343
325319966,0cyclictest0-21swapper/321:36:103
325319963,2cyclictest9968-21ssh22:59:223
325319963,2cyclictest9921-21cat22:20:113
325319963,2cyclictest7140-21rm23:36:163
325319963,2cyclictest6616-21sh23:16:193
325319963,2cyclictest658-21snmpd20:46:233
325319963,2cyclictest658-21snmpd00:30:053
325319963,2cyclictest6505-21ssh00:35:053
325319963,2cyclictest504-21dbus-daemon19:21:233
325319963,2cyclictest29857-21sshd22:51:133
325319963,2cyclictest28347-21grep23:10:133
325319963,2cyclictest28139-21expr20:10:133
325319963,2cyclictest275-21systemd-journal19:45:013
325319963,2cyclictest26496-21chrt21:11:513
325319963,2cyclictest25743-21expr22:10:153
325319963,2cyclictest24289-21/usr/sbin/munin21:50:183
325319963,2cyclictest23079-21ssh23:45:353
325319963,2cyclictest1918-21sshd20:24:343
325319963,2cyclictest10201-21ssh23:57:563
325319963,1cyclictest0-21swapper/323:50:113
325319962,3cyclictest8148-21expr19:25:133
325319962,3cyclictest658-21snmpd23:23:503
325319962,3cyclictest658-21snmpd23:06:393
325319962,3cyclictest658-21snmpd23:01:273
325319962,3cyclictest658-21snmpd22:00:263
325319962,3cyclictest658-21snmpd21:18:073
325319962,3cyclictest658-21snmpd20:41:503
325319962,3cyclictest658-21snmpd20:17:473
325319962,3cyclictest658-21snmpd20:04:223
325319962,3cyclictest658-21snmpd19:32:013
325319962,3cyclictest658-21snmpd00:29:573
325319962,3cyclictest658-21snmpd00:13:093
325319962,3cyclictest6116-21sort00:15:123
325319962,3cyclictest275-21systemd-journal21:00:493
325319962,3cyclictest15058-21cat00:20:163
325319962,3cyclictest13488-21cat23:40:133
325319962,1cyclictest0-21swapper/322:45:513
325319961,3cyclictest275-21systemd-journal22:33:543
325319961,3cyclictest275-21systemd-journal20:35:153
325319960,6cyclictest0-21swapper/323:30:413
325319960,3cyclictest15061-21smart_sda00:00:183
325289966,0cyclictest0-21swapper/223:30:492
325289966,0cyclictest0-21swapper/222:10:152
325289965,1cyclictest28-21ksoftirqd/223:00:002
325289963,2cyclictest9578-21ssh21:21:002
325289963,2cyclictest8135-21ssh21:40:112
325289963,2cyclictest536-21chrt23:51:522
325289963,2cyclictest504-21dbus-daemon21:00:212
325289963,2cyclictest32235-21sh00:10:362
325289963,2cyclictest275-21systemd-journal19:10:282
325289963,2cyclictest26565-21sh00:07:342
325289963,2cyclictest24626-21ssh22:29:042
325289963,2cyclictest23967-21sh22:48:032
325289963,2cyclictest19113-21ssh00:22:422
325289963,2cyclictest16594-21rm22:43:432
325289962,3cyclictest6663-21cat19:20:172
325289962,3cyclictest658-21snmpd23:37:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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