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2026-09-17 - 00:11
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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 Wed Sep 16, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145372307278,18sleep20-21swapper/207:07:252
145012277247,19sleep10-21swapper/107:06:541
146132264209,17sleep00-21swapper/007:08:060
147102261228,22sleep30-21swapper/307:09:233
139242620,0sleep20-21swapper/209:15:132
31632610,0sleep30-21swapper/312:21:543
302822590,0sleep00-21swapper/007:40:180
250912540,0sleep20-21swapper/211:56:272
176852540,0sleep20-21swapper/211:52:092
114882210,0sleep20-21swapper/212:07:442
168032200,0sleep116797-21fschecks_count10:15:151
308472190,1sleep20-21swapper/212:19:412
134572190,0sleep30-21swapper/309:34:403
220062170,0sleep30-21swapper/310:18:203
32032140,0sleep20-21swapper/211:05:132
289612140,0sleep00-21swapper/010:41:130
14877991413,1cyclictest34-21ksoftirqd/311:30:013
14877991310,2cyclictest34-21ksoftirqd/312:30:003
14877991210,2cyclictest34-21ksoftirqd/311:40:013
14877991210,2cyclictest34-21ksoftirqd/311:40:013
1487799119,1cyclictest34-21ksoftirqd/307:55:013
1487799119,1cyclictest34-21ksoftirqd/307:15:013
14877991110,1cyclictest34-21ksoftirqd/310:40:013
1487799109,1cyclictest34-21ksoftirqd/309:00:013
148779998,1cyclictest34-21ksoftirqd/312:40:003
148779998,1cyclictest34-21ksoftirqd/311:20:013
148779998,1cyclictest34-21ksoftirqd/309:30:013
148779997,1cyclictest34-21ksoftirqd/307:50:013
148729996,1cyclictest28-21ksoftirqd/209:00:002
148729992,4cyclictest19931-21idleruntime-cro07:20:002
13835290,0sleep10-21swapper/110:13:311
148779987,1cyclictest34-21ksoftirqd/310:45:013
148779987,1cyclictest34-21ksoftirqd/307:45:013
148779987,1cyclictest331rcuc/307:35:133
148779985,2cyclictest34-21ksoftirqd/311:15:003
148779982,4cyclictest141rcu_preempt11:33:233
148779981,4cyclictest34-21ksoftirqd/311:00:173
148729984,3cyclictest7446-21cron10:10:002
148729980,7cyclictest3009-21ssh09:27:582
148699987,1cyclictest22-21ksoftirqd/110:00:011
148699980,2cyclictest19481-21sh11:34:181
148659983,3cyclictest275-21systemd-journal11:15:010
148659982,3cyclictest3622-21awk11:25:000
148659980,2cyclictest14415-21snmpd11:52:330
12249280,0sleep00-21swapper/011:49:240
4070270,0sleep10-21swapper/112:22:351
26955270,0sleep10-21swapper/111:38:391
26955270,0sleep10-21swapper/111:38:391
24479270,0sleep30-21swapper/312:15:173
148779976,1cyclictest34-21ksoftirqd/312:35:003
148779976,1cyclictest34-21ksoftirqd/311:45:013
148779976,1cyclictest34-21ksoftirqd/309:25:013
148779976,1cyclictest34-21ksoftirqd/308:00:013
148779975,2cyclictest34-21ksoftirqd/307:15:003
148779975,2cyclictest331rcuc/308:20:133
148779974,2cyclictest34-21ksoftirqd/307:30:003
148779973,1cyclictest141rcu_preempt09:40:163
148779972,5cyclictest141rcu_preempt09:58:403
148779971,3cyclictest141rcu_preempt11:45:203
148779970,3cyclictest7929-21taskset10:10:113
148779970,1cyclictest4573-21ssh10:27:003
148729974,2cyclictest31393-21df_inode09:45:152
148729973,3cyclictest31583-21sensors_temp12:00:172
148729971,3cyclictest13075-21awk11:50:002
148699976,1cyclictest22-21ksoftirqd/107:25:011
148699973,3cyclictest275-21systemd-journal09:31:341
148699973,3cyclictest275-21systemd-journal08:55:001
148699972,3cyclictest674-21lldpd07:17:221
148659974,2cyclictest9911-21cron08:10:000
148659972,4cyclictest27550-21sshd11:58:200
148659972,3cyclictest275-21systemd-journal10:12:590
148659972,3cyclictest10903-21ssh11:10:010
148659971,4cyclictest7446-21cron10:10:010
148779966,0cyclictest0-21swapper/312:01:253
148779966,0cyclictest0-21swapper/311:07:253
148779964,2cyclictest34-21ksoftirqd/310:45:133
148779964,1cyclictest13664-21ntp_states08:15:183
148779963,2cyclictest21824-21sh10:56:213
148779963,2cyclictest19490-21ssh09:18:293
148779963,2cyclictest17225-21basename10:35:013
148779963,2cyclictest10949-21ssh09:52:063
148779963,1cyclictest0-21swapper/311:51:283
148779963,1cyclictest0-21swapper/310:05:083
148779962,3cyclictest8259-21expr08:05:133
148779962,3cyclictest25445-21cat10:20:153
148779962,3cyclictest20187-21awk07:20:103
148779962,3cyclictest14415-21snmpd12:06:423
148779962,3cyclictest14415-21snmpd11:59:353
148779962,3cyclictest14415-21snmpd10:04:573
148779962,3cyclictest14415-21snmpd08:47:423
148779962,3cyclictest14415-21snmpd08:41:303
148779962,3cyclictest14415-21snmpd08:25:023
148779962,1cyclictest141rcu_preempt09:36:443
148779962,1cyclictest0-21swapper/311:20:073
148779961,1cyclictest141rcu_preempt12:10:093
148779960,5cyclictest28588-21/usr/sbin/munin08:50:143
148779960,4cyclictest28102-11brltty09:08:353
148779960,0cyclictest0-21swapper/309:46:073
148729966,0cyclictest0-21swapper/211:28:232
148729966,0cyclictest0-21swapper/210:21:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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