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2026-05-30 - 21:48
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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 30, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143332312285,18sleep20-21swapper/207:05:062
162532286225,19sleep30-21swapper/307:09:253
161622278251,18sleep10-21swapper/107:08:151
160052260229,21sleep00-21swapper/007:06:130
258222670,0sleep20-21swapper/210:00:182
94962610,0sleep30-21swapper/309:11:043
167592600,1sleep316760-21unixbench_multi09:15:213
9842560,0sleep00-21swapper/010:44:440
226172560,0sleep20-21swapper/209:19:482
199842560,0sleep00-21swapper/010:35:480
199842560,0sleep00-21swapper/010:35:470
74692530,0sleep20-21swapper/212:05:502
13162530,0sleep00-21swapper/010:05:160
120622140,0sleep20-21swapper/209:13:042
99372130,0sleep00-21swapper/011:48:110
324092130,0sleep20-21swapper/211:22:262
16418991310,2cyclictest22-21ksoftirqd/107:15:011
1641499107,2cyclictest658-21snmpd09:19:370
19366290,0sleep20-21swapper/212:13:352
164189998,1cyclictest22-21ksoftirqd/107:20:011
5671280,0sleep30-21swapper/310:08:033
30419280,0sleep20-21swapper/212:20:122
164279985,2cyclictest658-21snmpd11:13:063
164239986,1cyclictest12026-21diskstats08:10:132
164189987,1cyclictest22-21ksoftirqd/112:40:001
164189987,1cyclictest22-21ksoftirqd/112:20:001
164189982,1cyclictest22-21ksoftirqd/112:11:451
164149986,1cyclictest12-21ksoftirqd/012:15:000
164149985,2cyclictest9969-21hddtemp_smartct10:30:120
164149985,2cyclictest658-21snmpd12:05:210
164149984,3cyclictest275-21systemd-journal09:48:570
3087270,0sleep10-21swapper/112:03:491
164279973,3cyclictest275-21systemd-journal09:46:263
164279973,3cyclictest25678-21expr10:20:163
164279973,3cyclictest10062-21cat10:30:123
164279973,1cyclictest0-21swapper/310:11:303
164239976,1cyclictest28-21ksoftirqd/210:20:012
164239973,3cyclictest8899-21cron10:30:012
164239972,3cyclictest275-21systemd-journal12:30:102
164239970,1cyclictest141rcu_preempt12:35:102
164189977,0cyclictest16504-21idleruntime-cro10:15:011
164189976,1cyclictest22-21ksoftirqd/112:30:011
164189976,1cyclictest22-21ksoftirqd/111:20:011
164189976,1cyclictest22-21ksoftirqd/108:20:011
164189975,2cyclictest22-21ksoftirqd/111:40:011
164189972,1cyclictest141rcu_preempt11:00:011
164189972,1cyclictest141rcu_preempt09:20:131
164189971,1cyclictest22-21ksoftirqd/109:59:151
164189970,1cyclictest0-21swapper/109:17:581
164149973,3cyclictest658-21snmpd10:23:160
164149973,3cyclictest658-21snmpd08:57:070
164149973,3cyclictest658-21snmpd08:10:440
164149973,3cyclictest560-21gdbus10:20:010
164149973,3cyclictest275-21systemd-journal11:00:010
164149972,3cyclictest275-21systemd-journal12:38:560
164149972,3cyclictest23683-21dump-pmu-power07:25:000
10512270,0sleep20-21swapper/211:29:112
29433260,1sleep329432-21cat12:00:123
164279964,1cyclictest8864-21basename09:50:153
164279963,2cyclictest658-21snmpd07:46:203
164279963,2cyclictest6219-21ssh09:29:273
164279963,2cyclictest2865-21cat10:45:163
164279963,2cyclictest28020-21ssh09:22:353
164279963,2cyclictest275-21systemd-journal11:16:133
164279963,2cyclictest275-21systemd-journal10:25:543
164279963,2cyclictest26622-21ssh10:00:323
164279963,2cyclictest26310-21expr10:40:123
164279963,2cyclictest20512-21ssh12:33:403
164279963,2cyclictest20284-21ssh11:54:513
164279963,2cyclictest10554-21ssh12:08:123
164279963,1cyclictest0-21swapper/309:36:193
164279962,3cyclictest7434-21munin-node09:30:123
164279962,3cyclictest658-21snmpd12:11:303
164279962,3cyclictest658-21snmpd11:40:113
164279962,3cyclictest658-21snmpd11:36:083
164279962,3cyclictest658-21snmpd10:55:223
164279962,3cyclictest658-21snmpd10:19:503
164279962,3cyclictest658-21snmpd09:43:053
164279962,3cyclictest658-21snmpd07:50:113
164279962,3cyclictest658-21snmpd07:35:053
164279962,3cyclictest504-21dbus-daemon07:30:003
164279962,3cyclictest275-21systemd-journal08:42:093
164279962,3cyclictest275-21systemd-journal08:42:083
164279962,3cyclictest26832-21cat07:30:153
164279962,3cyclictest19930-21sshd08:25:363
164279962,3cyclictest17320-21cat07:10:173
164279962,3cyclictest16824-21df09:55:133
164279962,1cyclictest0-21swapper/312:21:293
164279962,1cyclictest0-21swapper/311:28:243
164279962,1cyclictest0-21swapper/311:04:053
164279962,1cyclictest0-21swapper/310:50:143
164279960,6cyclictest0-21swapper/312:17:293
164279960,5cyclictest23165-21sort12:35:123
164279960,3cyclictest4961-21apt-get07:55:123
164279960,2cyclictest19046-21sensors10:35:203
164279960,2cyclictest19046-21sensors10:35:203
164279960,0cyclictest0-21swapper/309:05:223
164239966,0cyclictest0-21swapper/211:57:352
164239966,0cyclictest0-21swapper/210:47:412
164239965,1cyclictest28-21ksoftirqd/207:30:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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