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2026-09-04 - 19:22
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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 Fri Sep 04, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
58422289259,19sleep20-21swapper/207:07:322
57952273221,17sleep10-21swapper/107:06:551
59452262238,15sleep00-21swapper/007:08:510
57872256223,19sleep30-21swapper/307:06:483
235472830,0sleep10-21swapper/109:25:491
56912670,0sleep30-21swapper/312:30:223
325812610,0sleep122-21ksoftirqd/108:05:171
275302610,0sleep30-21swapper/310:46:363
99652600,0sleep10-21swapper/112:33:411
300302590,0sleep00-21swapper/012:25:310
297782560,0sleep20-21swapper/210:48:192
26662550,0sleep30-21swapper/310:31:473
161702550,0sleep10-21swapper/109:40:581
43712140,0sleep04375-21fschecks_time12:30:120
184992130,0sleep00-21swapper/011:59:530
229972120,0sleep20-21swapper/210:44:432
6165991110,1cyclictest12-21ksoftirqd/011:45:000
6165991110,1cyclictest12-21ksoftirqd/010:35:010
133292110,0sleep30-21swapper/309:40:003
616599109,1cyclictest12-21ksoftirqd/010:25:010
616599108,1cyclictest12-21ksoftirqd/009:25:000
616599108,1cyclictest12-21ksoftirqd/007:15:010
616599107,2cyclictest12-21ksoftirqd/010:00:010
61739996,2cyclictest15221-21snmpd09:34:242
61659998,1cyclictest12-21ksoftirqd/011:35:000
61659998,1cyclictest12-21ksoftirqd/009:20:000
61659997,1cyclictest12-21ksoftirqd/011:50:000
61659997,1cyclictest12-21ksoftirqd/008:20:010
61659996,2cyclictest12-21ksoftirqd/010:40:010
61659993,4cyclictest13449-21basename07:25:010
61659991,1cyclictest141rcu_preempt08:30:110
61659991,1cyclictest141rcu_preempt08:30:110
2103290,0sleep20-21swapper/210:50:352
18450290,0sleep00-21swapper/011:20:160
7350280,0sleep10-21swapper/109:35:341
61789986,2cyclictest34-21ksoftirqd/312:30:003
61789984,2cyclictest275-21systemd-journal11:36:543
61739980,3cyclictest10350-21apt-get08:30:112
61739980,3cyclictest10350-21apt-get08:30:102
61659987,1cyclictest12-21ksoftirqd/012:40:010
61659987,1cyclictest12-21ksoftirqd/012:10:010
61659987,1cyclictest12-21ksoftirqd/011:15:000
61659987,1cyclictest12-21ksoftirqd/010:30:010
61659984,3cyclictest12704-21sshd12:15:170
61659982,1cyclictest141rcu_preempt09:35:100
61659982,1cyclictest141rcu_preempt09:00:090
61659982,1cyclictest141rcu_preempt07:25:120
61659981,1cyclictest141rcu_preempt10:15:010
61789976,1cyclictest34-21ksoftirqd/311:05:003
61789976,1cyclictest34-21ksoftirqd/310:30:013
61789970,3cyclictest11960-21ntpq11:55:183
61739973,3cyclictest560-21gdbus08:10:012
61739973,3cyclictest560-21gdbus08:05:012
61739973,3cyclictest32521-21ntpq10:30:162
61739973,3cyclictest29120-21ntpq12:25:172
61739973,3cyclictest275-21systemd-journal12:00:442
61739973,3cyclictest15221-21snmpd11:43:082
61739973,2cyclictest275-21systemd-journal11:20:122
61739973,1cyclictest0-21swapper/211:10:192
61739972,3cyclictest2802-21munin-run12:10:012
61739971,1cyclictest141rcu_preempt07:50:112
61739970,4cyclictest22438-21turbostat07:45:012
61709973,3cyclictest275-21systemd-journal10:40:071
61709971,3cyclictest26020-21munin-run09:05:001
61659976,1cyclictest12-21ksoftirqd/011:40:000
61659976,1cyclictest12-21ksoftirqd/011:04:590
61659976,1cyclictest12-21ksoftirqd/009:55:010
61659976,1cyclictest12-21ksoftirqd/009:15:000
61659976,1cyclictest12-21ksoftirqd/007:50:010
61659976,1cyclictest12-21ksoftirqd/007:15:010
61659975,2cyclictest12-21ksoftirqd/010:45:010
61659975,1cyclictest12-21ksoftirqd/008:30:010
61659974,0cyclictest141rcu_preempt12:00:130
61659973,3cyclictest15221-21snmpd10:01:350
61659973,1cyclictest0-21swapper/010:48:590
61789966,0cyclictest0-21swapper/309:56:483
61789964,1cyclictest8342-21dump-pmu-power07:15:013
61789964,1cyclictest29924-21grep08:00:143
61789963,2cyclictest9172-21ssh10:35:233
61789963,2cyclictest7817-21munin-plugin-st10:55:003
61789963,2cyclictest32020-21diskstats08:05:133
61789963,2cyclictest29791-21ssh12:05:493
61789963,2cyclictest275-21systemd-journal07:59:383
61789963,2cyclictest24295-21ssh12:02:563
61789963,2cyclictest16152-21head08:40:173
61789963,2cyclictest15221-21snmpd11:26:233
61789963,2cyclictest12219-21if_enp4s012:15:143
61789963,0cyclictest141rcu_preempt11:20:133
61789962,3cyclictest9226-21apt07:15:123
61789962,3cyclictest9016-21ls11:15:003
61789962,3cyclictest3866-21ls08:15:113
61789962,3cyclictest30593-21df09:50:153
61789962,3cyclictest30478-21ntpq09:30:153
61789962,3cyclictest22886-21cat10:05:113
61789962,3cyclictest22607-21cat09:45:133
61789962,3cyclictest18547-21sensors_temp08:45:183
61789962,3cyclictest15221-21snmpd11:06:013
61789962,3cyclictest15221-21snmpd10:21:423
61789962,3cyclictest15221-21snmpd09:13:163
61789962,3cyclictest15221-21snmpd09:01:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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