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2026-08-27 - 03:47
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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 Aug 27, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
198822312281,20sleep20-21swapper/219:07:052
199592310280,19sleep10-21swapper/119:08:061
198292273242,21sleep00-21swapper/019:06:240
199312268238,19sleep30-21swapper/319:07:443
296692620,0sleep10-21swapper/122:59:091
65792590,0sleep00-21swapper/019:50:130
310962580,0sleep10-21swapper/100:37:561
138702580,0sleep00-21swapper/021:11:350
95342540,0sleep30-21swapper/323:05:363
43952530,0sleep20-21swapper/200:21:142
220122180,0sleep10-21swapper/119:10:221
30322170,0sleep00-21swapper/021:25:100
124172160,0sleep20-21swapper/222:48:372
2022599108,1cyclictest28-21ksoftirqd/219:20:012
2022599102,1cyclictest141rcu_preempt23:25:112
202299998,1cyclictest34-21ksoftirqd/320:00:013
202299990,8cyclictest4951-21ssh22:44:123
202189998,1cyclictest12-21ksoftirqd/021:50:010
4211280,0sleep00-21swapper/023:22:190
202299984,2cyclictest275-21systemd-journal23:00:163
202259987,0cyclictest281ksoftirqd/200:20:002
202239985,2cyclictest23435-21memory20:25:151
202189984,3cyclictest275-21systemd-journal23:47:060
202189984,3cyclictest275-21systemd-journal00:01:270
202299977,0cyclictest0-21swapper/323:25:133
202299976,1cyclictest34-21ksoftirqd/323:15:013
202299974,2cyclictest34-21ksoftirqd/320:40:003
202299974,2cyclictest12496-21sshd00:06:273
202299974,2cyclictest12496-21sshd00:06:273
202299973,3cyclictest30727-21snmpd19:24:333
202299973,3cyclictest275-21systemd-journal23:24:163
202299973,3cyclictest275-21systemd-journal22:48:363
202299973,3cyclictest275-21systemd-journal22:20:013
202299973,3cyclictest275-21systemd-journal22:10:013
202299973,3cyclictest275-21systemd-journal21:59:503
202299970,6cyclictest2154-11brltty22:26:313
202259976,1cyclictest28-21ksoftirqd/223:15:002
202259974,2cyclictest6309-21ntp_states22:05:172
202259973,3cyclictest275-21systemd-journal22:57:222
202259973,3cyclictest0-21swapper/222:26:012
202259972,3cyclictest275-21systemd-journal23:24:552
202259971,5cyclictest17259-21cut23:30:152
202259971,2cyclictest141rcu_preempt22:00:122
202239974,2cyclictest275-21systemd-journal23:51:151
202239973,3cyclictest30727-21snmpd21:17:091
202239973,3cyclictest275-21systemd-journal20:32:361
202239972,3cyclictest25234-21sendmail19:20:011
202239970,4cyclictest3973-21munin-run19:45:011
202189976,1cyclictest12-21ksoftirqd/023:40:010
202189975,2cyclictest12-21ksoftirqd/019:50:010
202189973,3cyclictest30727-21snmpd23:59:380
31393260,0sleep10-21swapper/121:22:151
202299966,0cyclictest6506-21ssh21:26:363
202299966,0cyclictest0-21swapper/300:30:463
202299965,1cyclictest34-21ksoftirqd/319:40:013
202299965,1cyclictest34-21ksoftirqd/319:20:013
202299963,2cyclictest504-21dbus-daemon22:20:413
202299963,2cyclictest30727-21snmpd22:30:473
202299963,2cyclictest25705-21sh00:15:103
202299963,2cyclictest17304-21ssh00:10:023
202299963,2cyclictest13655-21ssh21:11:263
202299962,3cyclictest31270-21cron20:45:003
202299962,3cyclictest30727-21snmpd22:56:453
202299962,3cyclictest30727-21snmpd21:48:493
202299962,3cyclictest30727-21snmpd21:39:483
202299962,3cyclictest30727-21snmpd20:47:593
202299962,3cyclictest30727-21snmpd20:29:103
202299962,3cyclictest30727-21snmpd19:45:453
202299962,3cyclictest275-21systemd-journal19:29:173
202299962,3cyclictest26640-21head00:35:123
202299962,3cyclictest22416-21/usr/sbin/munin22:35:183
202299962,3cyclictest16620-21cat20:10:153
202299962,3cyclictest15269-21users20:05:223
202299962,3cyclictest14303-21date21:50:183
202299962,3cyclictest1-21systemd22:00:153
202299962,3cyclictest0-21swapper/323:55:183
202299962,3cyclictest0-21swapper/320:00:263
202299962,1cyclictest0-21swapper/323:40:333
202299962,1cyclictest0-21swapper/323:19:093
202299962,1cyclictest0-21swapper/322:50:393
202299962,1cyclictest0-21swapper/322:10:133
202299962,1cyclictest0-21swapper/321:20:313
202299962,1cyclictest0-21swapper/321:17:463
202299961,4cyclictest11990-21gltestperf21:30:143
202299960,6cyclictest0-21swapper/323:50:363
202299960,6cyclictest0-21swapper/323:35:193
202299960,6cyclictest0-21swapper/300:02:233
202299960,3cyclictest1983-21/usr/sbin/munin00:20:153
202299960,2cyclictest9450-21uniq23:45:143
202299960,2cyclictest29438-21smart_sda21:40:183
202299960,0cyclictest0-21swapper/323:32:483
202259966,0cyclictest0-21swapper/223:04:352
202259966,0cyclictest0-21swapper/221:19:122
202259965,1cyclictest28-21ksoftirqd/221:45:002
202259964,1cyclictest28-21ksoftirqd/200:05:012
202259964,1cyclictest20136-21cron20:20:012
202259963,2cyclictest5371-21sh22:44:322
202259963,2cyclictest504-21dbus-daemon20:55:572
202259963,2cyclictest30727-21snmpd23:06:212
202259963,2cyclictest30727-21snmpd20:37:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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