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2026-05-02 - 11:20
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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 Sat May 02, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
326512297271,17sleep20-21swapper/219:05:102
19882283253,20sleep10-21swapper/119:07:061
19532274215,48sleep30-21swapper/319:06:393
19422273243,19sleep00-21swapper/019:06:330
161642600,0sleep00-21swapper/021:43:240
108452580,0sleep10-21swapper/122:38:001
229652560,0sleep00-21swapper/021:28:150
73862540,0sleep00-21swapper/022:16:130
16462530,0sleep10-21swapper/123:30:171
63682180,0sleep20-21swapper/223:33:352
261492150,0sleep20-21swapper/221:49:292
109202140,0sleep30-21swapper/321:59:393
23309993,5cyclictest1-21systemd23:07:271
12540290,0sleep10-21swapper/121:40:411
4275280,0sleep20-21swapper/221:35:582
28588280,0sleep00-21swapper/023:27:080
28453280,0sleep00-21swapper/000:05:290
23379983,3cyclictest275-21systemd-journal21:04:473
23349987,1cyclictest28-21ksoftirqd/200:00:002
23349983,3cyclictest275-21systemd-journal22:30:022
23349980,5cyclictest16912-21sleep21:24:592
23309984,2cyclictest275-21systemd-journal00:02:031
23309983,3cyclictest275-21systemd-journal21:03:071
23309982,3cyclictest30130-21munin-run22:50:001
23309980,5cyclictest25285-21awk21:30:001
23269985,2cyclictest12-21ksoftirqd/020:45:010
23269983,4cyclictest25266-21sshd22:26:530
23269983,4cyclictest25266-21sshd22:26:530
23379973,3cyclictest658-21snmpd21:13:103
23379973,3cyclictest658-21snmpd19:22:413
23379973,3cyclictest275-21systemd-journal20:05:003
23379973,3cyclictest17407-21lockfile-create00:00:013
23379973,2cyclictest275-21systemd-journal22:45:023
23379973,1cyclictest0-21swapper/321:22:233
23349974,2cyclictest12633-21cat22:00:142
23349972,4cyclictest0-21swapper/222:40:122
23349972,3cyclictest275-21systemd-journal23:08:582
23349970,5cyclictest24198-21diskmemload23:17:132
23269973,3cyclictest658-21snmpd23:30:190
23269973,3cyclictest658-21snmpd23:10:470
23269973,3cyclictest275-21systemd-journal22:52:010
23269973,3cyclictest12066-21apt-get19:30:110
23269973,2cyclictest275-21systemd-journal23:16:280
23269973,2cyclictest275-21systemd-journal22:01:140
23269973,1cyclictest0-21swapper/000:28:350
23269970,3cyclictest22200-21/usr/sbin/munin22:45:120
22330270,0sleep30-21swapper/321:05:123
17366270,0sleep20-21swapper/219:40:142
23379966,0cyclictest0-21swapper/323:12:413
23379966,0cyclictest0-21swapper/300:17:023
23379966,0cyclictest0-21swapper/300:05:513
23379965,1cyclictest34-21ksoftirqd/323:35:013
23379965,1cyclictest34-21ksoftirqd/319:20:003
23379963,2cyclictest8869-21ssh23:15:163
23379963,2cyclictest6882-21ssh00:31:423
23379963,2cyclictest658-21snmpd19:50:343
23379963,2cyclictest6066-21cat22:15:183
23379963,2cyclictest31580-21ssh22:30:243
23379963,2cyclictest28210-11brltty23:07:513
23379963,2cyclictest26475-21cat21:30:133
23379963,2cyclictest23469-21sh22:06:273
23379963,2cyclictest23107-21ssh00:02:453
23379963,2cyclictest22049-21ssh22:45:033
23379963,2cyclictest21645-21tr22:25:133
23379963,2cyclictest21645-21tr22:25:123
23379963,2cyclictest17808-21entropy21:25:123
23379963,2cyclictest15902-21ssh23:20:023
23379963,2cyclictest14029-21sshd21:41:493
23379963,2cyclictest13084-21taskset22:58:433
23379963,2cyclictest10821-21sshd20:39:573
23379963,1cyclictest0-21swapper/321:17:063
23379962,3cyclictest8199-21sed20:30:193
23379962,3cyclictest658-21snmpd23:48:453
23379962,3cyclictest658-21snmpd23:25:323
23379962,3cyclictest658-21snmpd22:50:323
23379962,3cyclictest658-21snmpd22:35:103
23379962,3cyclictest658-21snmpd22:21:213
23379962,3cyclictest658-21snmpd21:50:453
23379962,3cyclictest658-21snmpd20:50:183
23379962,3cyclictest658-21snmpd20:46:183
23379962,3cyclictest658-21snmpd20:20:543
23379962,3cyclictest504-21dbus-daemon20:55:113
23379962,3cyclictest275-21systemd-journal23:50:483
23379962,3cyclictest275-21systemd-journal00:35:303
23379962,3cyclictest275-21systemd-journal00:20:533
23379962,3cyclictest17001-21/usr/sbin/munin23:40:143
23379962,1cyclictest141rcu_preempt00:25:133
23379962,1cyclictest0-21swapper/322:14:023
23379962,1cyclictest0-21swapper/322:01:003
23379961,3cyclictest275-21systemd-journal19:26:433
23379960,6cyclictest0-21swapper/321:49:203
23379960,3cyclictest21474-21ssh23:03:423
23349965,1cyclictest13927-21ssh00:16:262
23349963,2cyclictest663-21runrttasks21:16:252
23349963,2cyclictest658-21snmpd21:53:292
23349963,2cyclictest4694-21ls21:55:172
23349963,2cyclictest4235-21sort00:30:152
23349963,2cyclictest31973-21ssh22:11:382
23349963,2cyclictest2827-21df00:10:112
23349963,2cyclictest275-21systemd-journal22:50:582
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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