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2026-07-20 - 23:27
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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 Mon Jul 20, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
203992292262,19sleep20-21swapper/207:06:332
205712268237,21sleep10-21swapper/107:08:451
205302263229,23sleep30-21swapper/307:08:143
205322260228,19sleep00-21swapper/007:08:160
111152580,0sleep00-21swapper/012:24:510
192332560,0sleep20-21swapper/210:31:572
201502540,0sleep20-21swapper/209:54:072
327592220,0chrt0-21swapper/207:35:112
193722210,0sleep30-21swapper/312:29:513
220562200,3sleep228-21ksoftirqd/212:30:312
85982180,0sleep20-21swapper/207:50:212
27492180,0sleep20-21swapper/209:24:012
171712180,0sleep20-21swapper/211:10:132
171712180,0sleep20-21swapper/211:10:132
323732160,0sleep30-21swapper/311:39:023
20807991614,1cyclictest28-21ksoftirqd/211:30:022
178452150,0sleep00-21swapper/012:28:390
164672140,0sleep00-21swapper/009:51:150
35902120,0chrt0-21swapper/211:21:002
223702110,0sleep20-21swapper/212:11:322
208039990,8cyclictest275-21systemd-journal11:35:431
19897290,0sleep10-21swapper/110:13:071
208129987,1cyclictest34-21ksoftirqd/310:30:003
208039980,5cyclictest7998-21idleruntime-cro11:05:011
207999984,3cyclictest504-21dbus-daemon11:00:190
6589270,0sleep30-21swapper/309:25:353
25190270,0sleep20-21swapper/209:17:572
208129973,3cyclictest504-21dbus-daemon07:20:023
208129973,3cyclictest4730-21basename09:45:003
208129973,3cyclictest275-21systemd-journal09:53:113
208129973,3cyclictest12271-11brltty10:31:573
208129973,2cyclictest275-21systemd-journal11:19:043
208129973,1cyclictest0-21swapper/310:02:183
208129972,4cyclictest658-21snmpd11:26:543
208129970,6cyclictest32731-21/usr/sbin/munin07:35:123
208079975,1cyclictest28-21ksoftirqd/207:15:022
208079974,2cyclictest30265-21cron07:30:012
208079973,3cyclictest275-21systemd-journal08:45:002
208079972,1cyclictest20309-21kworker/2:010:15:292
208079972,1cyclictest110521ntpq11:45:182
208079971,4cyclictest23442-21kworker/u8:211:00:032
208079971,1cyclictest141rcu_preempt09:05:122
208079970,5cyclictest141rcu_preempt11:35:182
208039973,3cyclictest275-21systemd-journal09:40:141
208039973,3cyclictest26038-21munin-run11:55:001
208039973,3cyclictest16219-11brltty08:14:071
208039973,2cyclictest275-21systemd-journal12:30:141
208039973,1cyclictest32571-21awk08:45:011
208039972,3cyclictest17754-21dump-pmu-power11:50:001
207999974,2cyclictest275-21systemd-journal08:38:530
207999973,3cyclictest658-21snmpd11:40:420
207999973,3cyclictest275-21systemd-journal11:36:590
207999973,3cyclictest0-21swapper/010:20:120
207999972,3cyclictest275-21systemd-journal11:35:010
208129966,0cyclictest0-21swapper/310:46:143
208129966,0cyclictest0-21swapper/309:11:123
208129963,2cyclictest658-21snmpd08:53:103
208129963,2cyclictest504-21dbus-daemon11:32:003
208129963,2cyclictest504-21dbus-daemon09:05:593
208129963,2cyclictest501-21in:imuxsock08:55:343
208129963,2cyclictest31556-21rm12:36:133
208129963,2cyclictest275-21systemd-journal07:29:563
208129963,2cyclictest25974-21ssh09:57:133
208129963,2cyclictest13570-21seq08:02:013
208129963,2cyclictest11585-21cron08:00:013
208129962,3cyclictest6848-21cron07:50:003
208129962,3cyclictest658-21snmpd12:21:043
208129962,3cyclictest658-21snmpd12:07:223
208129962,3cyclictest658-21snmpd12:01:163
208129962,3cyclictest658-21snmpd11:46:553
208129962,3cyclictest658-21snmpd11:14:413
208129962,3cyclictest658-21snmpd11:14:413
208129962,3cyclictest658-21snmpd11:01:413
208129962,3cyclictest658-21snmpd09:21:143
208129962,3cyclictest658-21snmpd09:18:333
208129962,3cyclictest658-21snmpd08:49:013
208129962,3cyclictest658-21snmpd08:37:253
208129962,3cyclictest658-21snmpd08:26:153
208129962,3cyclictest275-21systemd-journal10:08:113
208129962,3cyclictest25907-21cat08:30:123
208129962,3cyclictest2565-21ls11:40:163
208129962,3cyclictest23556-21cat10:15:133
208129962,3cyclictest21478-21awk09:35:133
208129962,1cyclictest0-21swapper/311:59:043
208129962,1cyclictest0-21swapper/311:50:523
208129962,1cyclictest0-21swapper/311:20:163
208129962,1cyclictest0-21swapper/310:40:413
208129960,6cyclictest0-21swapper/312:12:493
208129960,6cyclictest0-21swapper/310:35:093
208129960,6cyclictest0-21swapper/310:23:443
208129960,3cyclictest25012-21hddtemp_smartct10:55:153
208129960,0cyclictest0-21swapper/309:46:483
208079966,0cyclictest0-21swapper/212:25:522
208079966,0cyclictest0-21swapper/209:25:102
208079963,2cyclictest658-21snmpd09:45:402
208079963,2cyclictest658-21snmpd08:48:202
208079963,2cyclictest560-21gdbus08:40:002
208079963,2cyclictest32294-21ssh12:36:472
208079963,2cyclictest31820-21threads07:30:192
208079963,2cyclictest29273-21ssh11:56:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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