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2026-03-20 - 19:45
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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 Mar 20, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72502282253,18sleep20-21swapper/207:07:232
72172280223,47sleep00-21swapper/007:06:580
74062270239,20sleep10-21swapper/107:09:111
73442266214,21sleep30-21swapper/307:08:373
52952640,0sleep00-21swapper/012:30:110
177002630,0sleep30-21swapper/312:37:193
117682630,0sleep10-21swapper/111:15:161
222992600,0sleep10-21swapper/111:01:511
121422580,0sleep00-21swapper/010:16:540
249212560,0sleep20-21swapper/207:45:152
316992540,0sleep10-21swapper/111:46:401
191622540,0sleep30-21swapper/311:39:523
53712520,0sleep00-21swapper/009:53:310
53182220,0sleep00-21swapper/010:13:010
53182220,0sleep00-21swapper/010:13:000
43512190,0sleep00-21swapper/010:31:310
25082150,0sleep00-21swapper/010:50:130
148202140,0sleep10-21swapper/109:39:541
75849998,1cyclictest34-21ksoftirqd/310:45:003
12901290,0sleep20-21swapper/209:57:582
75849987,1cyclictest34-21ksoftirqd/308:39:593
75849980,7cyclictest6354-21ssh10:52:183
75799987,1cyclictest28-21ksoftirqd/210:40:002
75799987,1cyclictest28-21ksoftirqd/207:15:012
75799981,4cyclictest20158-21apt12:00:012
75739985,2cyclictest658-21snmpd10:46:271
75719984,3cyclictest275-21systemd-journal11:05:000
75719983,3cyclictest275-21systemd-journal09:35:000
17931280,0sleep20-21swapper/211:38:552
12239280,0sleep30-21swapper/312:14:533
75849974,2cyclictest14077-21needreboot07:20:153
75849973,3cyclictest275-21systemd-journal09:53:003
75849973,3cyclictest275-21systemd-journal07:19:283
75849972,3cyclictest275-21systemd-journal08:25:473
75849971,1cyclictest141rcu_preempt09:40:113
75849970,2cyclictest275-21systemd-journal08:00:003
75799975,1cyclictest28-21ksoftirqd/211:45:002
75799975,1cyclictest28-21ksoftirqd/208:55:002
75799973,3cyclictest275-21systemd-journal11:02:182
75799973,3cyclictest275-21systemd-journal09:37:092
75739974,2cyclictest30922-21cron09:30:001
75739974,2cyclictest27077-21grep11:05:121
75739973,3cyclictest658-21snmpd08:11:461
75739973,3cyclictest658-21snmpd08:11:451
75739973,3cyclictest275-21systemd-journal12:17:291
75739973,3cyclictest275-21systemd-journal10:17:441
75739972,3cyclictest275-21systemd-journal08:43:171
75719976,1cyclictest12-21ksoftirqd/007:15:010
75719973,3cyclictest658-21snmpd09:59:240
75719973,3cyclictest658-21snmpd08:26:550
75719973,3cyclictest658-21snmpd08:21:310
75719973,3cyclictest275-21systemd-journal08:49:580
75719973,3cyclictest275-21systemd-journal08:20:010
75719972,3cyclictest275-21systemd-journal12:15:050
75719970,6cyclictest20097-21ssh10:21:400
75719970,3cyclictest12004-21/usr/sbin/munin08:30:200
4421270,0sleep10-21swapper/109:13:581
17198270,0sleep20-21swapper/209:20:482
75849966,0cyclictest0-21swapper/311:15:533
75849966,0cyclictest0-21swapper/307:40:193
75849965,1cyclictest34-21ksoftirqd/308:25:013
75849964,1cyclictest16702-21grep10:00:153
75849963,2cyclictest8087-21cat07:10:113
75849963,2cyclictest658-21snmpd10:31:053
75849963,2cyclictest6574-21ssh11:50:543
75849963,2cyclictest3523-21wc11:10:153
75849963,2cyclictest31735-21rm12:25:503
75849963,2cyclictest28056-21tune2fs11:25:143
75849963,2cyclictest27211-21cut10:45:153
75849963,2cyclictest26123-21ssh12:22:513
75849963,2cyclictest2429-21ssh10:10:453
75849963,2cyclictest2429-21ssh10:10:453
75849963,2cyclictest22032-21ssh11:40:403
75849963,2cyclictest11603-21sh09:18:083
75849962,3cyclictest658-21snmpd12:33:363
75849962,3cyclictest658-21snmpd12:08:383
75849962,3cyclictest658-21snmpd11:45:513
75849962,3cyclictest658-21snmpd10:58:003
75849962,3cyclictest658-21snmpd10:21:083
75849962,3cyclictest658-21snmpd09:56:153
75849962,3cyclictest658-21snmpd09:07:563
75849962,3cyclictest658-21snmpd09:03:383
75849962,3cyclictest658-21snmpd08:50:363
75849962,3cyclictest658-21snmpd08:41:273
75849962,3cyclictest658-21snmpd08:30:433
75849962,3cyclictest658-21snmpd08:18:253
75849962,3cyclictest658-21snmpd08:09:133
75849962,3cyclictest658-21snmpd08:02:593
75849962,3cyclictest658-21snmpd07:50:143
75849962,3cyclictest32717-21which09:30:183
75849962,3cyclictest275-21systemd-journal10:39:373
75849962,3cyclictest25902-21cut10:25:153
75849962,3cyclictest24680-21expr10:05:163
75849962,1cyclictest0-21swapper/312:01:463
75849962,1cyclictest0-21swapper/311:56:033
75849962,1cyclictest0-21swapper/311:02:233
75849962,1cyclictest0-21swapper/309:36:443
75849962,1cyclictest0-21swapper/309:25:353
75849961,4cyclictest28470-21sed11:05:193
75849960,6cyclictest0-21swapper/310:17:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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