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2026-05-16 - 19:44
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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 16, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137652308282,17sleep20-21swapper/207:09:422
136592264234,20sleep00-21swapper/007:08:190
136372264233,21sleep30-21swapper/307:08:023
135572262231,20sleep10-21swapper/107:06:591
188722600,0sleep10-21swapper/110:55:351
36702570,0sleep00-21swapper/011:45:160
172312570,0sleep20-21swapper/209:17:332
163922570,0sleep30-21swapper/309:16:543
166202560,0sleep10-21swapper/109:55:531
90042550,0sleep00-21swapper/010:50:140
302702550,0sleep10-21swapper/112:00:581
48492220,0sleep10-21swapper/109:30:021
15502200,0sleep20-21swapper/210:06:272
64212190,0sleep30-21swapper/311:27:213
92222170,0sleep30-21swapper/312:08:213
183052120,0sleep30-21swapper/307:15:193
13939991210,1cyclictest34-21ksoftirqd/308:15:003
13933991211,1cyclictest28-21ksoftirqd/211:40:002
139399997,2cyclictest34-21ksoftirqd/308:20:003
139399997,1cyclictest34-21ksoftirqd/307:15:013
139339998,1cyclictest28-21ksoftirqd/212:40:002
139339998,1cyclictest28-21ksoftirqd/210:30:012
139339992,5cyclictest141rcu_preempt12:24:162
139339991,1cyclictest141rcu_preempt09:10:122
139299992,4cyclictest20351-21dump-pmu-power12:34:591
28706280,0sleep20-21swapper/209:44:252
25464280,1sleep025446-21apt-get11:20:010
139399987,1cyclictest34-21ksoftirqd/311:20:013
139399987,1cyclictest34-21ksoftirqd/310:10:013
139399987,1cyclictest34-21ksoftirqd/309:00:013
139399987,1cyclictest34-21ksoftirqd/308:55:013
139399986,2cyclictest34-21ksoftirqd/312:40:003
139399986,2cyclictest34-21ksoftirqd/312:00:003
139399986,2cyclictest34-21ksoftirqd/310:15:013
139399986,1cyclictest34-21ksoftirqd/310:45:013
139399984,3cyclictest7190-21sshd08:05:103
139399984,1cyclictest34-21ksoftirqd/312:00:183
139399984,0cyclictest34-21ksoftirqd/312:15:163
139399982,1cyclictest141rcu_preempt10:30:133
139399981,6cyclictest24412-21tr10:20:183
139339987,1cyclictest28-21ksoftirqd/212:00:002
139339986,1cyclictest28-21ksoftirqd/212:30:002
139339986,1cyclictest28-21ksoftirqd/208:00:002
139299980,7cyclictest7383-21/usr/sbin/munin10:10:151
139229980,2cyclictest6798-21ssh11:08:270
5619270,0sleep20-21swapper/211:46:102
139399976,1cyclictest34-21ksoftirqd/311:00:013
139399976,1cyclictest34-21ksoftirqd/310:00:013
139399976,1cyclictest34-21ksoftirqd/308:00:003
139399975,1cyclictest34-21ksoftirqd/312:30:003
139399973,3cyclictest504-21dbus-daemon11:00:303
139399973,3cyclictest504-21dbus-daemon11:00:303
139399972,3cyclictest34-21ksoftirqd/311:20:243
139399972,1cyclictest141rcu_preempt11:05:123
139399971,4cyclictest30099-21kworker/3:109:41:013
139399970,5cyclictest141rcu_preempt10:19:413
139399970,1cyclictest0-21swapper/311:54:203
139339976,1cyclictest28-21ksoftirqd/211:50:122
139339975,1cyclictest28-21ksoftirqd/211:00:012
139339973,3cyclictest658-21snmpd08:46:302
139339973,3cyclictest658-21snmpd07:10:522
139339973,3cyclictest275-21systemd-journal12:15:422
139339973,3cyclictest21433-21tail08:35:152
139339973,0cyclictest28-21ksoftirqd/210:45:132
139339973,0cyclictest28-21ksoftirqd/207:50:002
139339972,4cyclictest28-21ksoftirqd/210:18:132
139339972,1cyclictest28-21ksoftirqd/211:30:112
139339972,1cyclictest28-21ksoftirqd/211:25:122
139339971,1cyclictest28-21ksoftirqd/210:40:122
139339971,1cyclictest141rcu_preempt10:35:012
139339970,3cyclictest325912sh09:46:002
139339970,2cyclictest3790-21diskmemload11:10:132
139299975,1cyclictest17468-21ssh09:37:091
139299974,2cyclictest658-21snmpd10:54:041
139299973,3cyclictest658-21snmpd12:16:581
139299973,3cyclictest504-21dbus-daemon07:40:001
139299972,4cyclictest12050-21wc12:30:001
139299970,7cyclictest0-21swapper/109:24:311
139299970,5cyclictest275-21systemd-journal08:35:011
139229976,1cyclictest12-21ksoftirqd/012:19:590
139229974,2cyclictest27953-21ntp_kernel_err11:40:170
139229973,3cyclictest31137-21diskstats07:45:150
139229973,3cyclictest30775-21awk09:45:170
139229973,3cyclictest30227-21ntpq09:25:160
139229973,3cyclictest275-21systemd-journal07:20:010
139229972,3cyclictest12024-21turbostat12:30:000
139229971,3cyclictest1621-21turbostat11:25:010
139229970,1cyclictest21362-21ssh09:59:320
12101270,0sleep20-21swapper/210:51:442
18707260,0sleep10-21swapper/111:15:171
139399965,1cyclictest9043-21ssh09:32:033
139399965,1cyclictest34-21ksoftirqd/307:30:013
139399965,1cyclictest331rcuc/312:30:123
139399963,2cyclictest32037-21ssh09:26:113
139399963,2cyclictest31976-21taskset09:00:043
139399963,2cyclictest29194-21cat07:40:143
139399963,2cyclictest275-21systemd-journal07:53:193
139399963,2cyclictest2603-21chrt09:05:173
139399963,2cyclictest2603-21chrt09:05:173
139399963,2cyclictest22793-21sshd08:39:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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