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2026-08-11 - 19:17
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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 Tue Aug 11, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284252311281,20sleep20-21swapper/207:06:362
284572287257,19sleep10-21swapper/107:07:001
284542262231,21sleep30-21swapper/307:06:583
286902261229,21sleep00-21swapper/007:09:440
141572590,0sleep20-21swapper/211:20:152
93062580,1sleep09308-21grep10:00:210
239932570,0sleep10-21swapper/109:30:381
208922570,0sleep30-21swapper/309:29:403
208922570,0sleep30-21swapper/309:29:403
128712570,2sleep122-21ksoftirqd/111:39:111
247142560,0sleep00-21swapper/010:48:220
289432550,0sleep20-21swapper/209:34:192
49192520,0sleep10-21swapper/109:20:131
9622180,1sleep10-21swapper/107:15:211
179022180,0sleep10-21swapper/109:27:261
179022180,0sleep10-21swapper/109:27:261
11292170,0sleep00-21swapper/009:36:250
33772150,0sleep219057-21diskmemload10:35:192
50552140,0sleep00-21swapper/010:36:090
160012130,0sleep00-21swapper/011:02:070
107912130,0sleep00-21swapper/010:40:130
2884299101,6cyclictest25112-21sh11:07:373
2883399109,1cyclictest22-21ksoftirqd/109:45:011
2882999108,1cyclictest12-21ksoftirqd/012:19:590
288429993,5cyclictest9840-21perf08:50:003
288429991,5cyclictest31636-21ssh12:28:223
288429991,4cyclictest4952-21sh11:34:343
288429991,3cyclictest27846-21rm11:28:433
288429990,6cyclictest9377-21ssh09:22:383
288429990,6cyclictest8672-21ssh12:15:053
288429990,6cyclictest24119-21ssh10:47:553
288429990,3cyclictest21263-21latency_hist11:25:013
288369998,1cyclictest28-21ksoftirqd/209:15:012
288299994,3cyclictest275-21systemd-journal09:15:010
288429985,2cyclictest10398-21apt-get12:35:013
288429983,4cyclictest13930-21cron11:40:013
288429982,1cyclictest19057-21diskmemload09:41:113
288429981,5cyclictest529-21rm09:36:003
288429981,5cyclictest4018-21sh10:16:103
288429981,5cyclictest25341-21ssh12:24:563
288429981,3cyclictest8482-21cstates10:00:143
288429981,3cyclictest5816-21rm11:54:183
288429981,3cyclictest24351-21ssh09:12:383
288429981,3cyclictest19057-21diskmemload10:58:543
288429981,3cyclictest19057-21diskmemload10:28:473
288429981,3cyclictest14584-21ssh11:01:023
288429981,3cyclictest13132-21rm10:40:563
288429980,6cyclictest3154-21ssh12:11:193
288429980,6cyclictest10577-21ssh11:56:323
288429980,5cyclictest30757-21ssh11:10:293
288429980,5cyclictest28614-21ssh09:34:053
288429980,5cyclictest26812-21ssh09:51:413
288429980,5cyclictest22761-21sh11:45:083
288429980,5cyclictest12559-21ssh10:21:173
288429980,5cyclictest10274-21ssh11:18:073
288429980,3cyclictest3831-21ssh12:30:293
288429980,3cyclictest17837-21/usr/sbin/munin10:05:163
288369986,1cyclictest28-21ksoftirqd/207:15:002
288369983,1cyclictest141rcu_preempt12:13:052
288339985,2cyclictest22-21ksoftirqd/111:55:001
288339984,3cyclictest275-21systemd-journal07:50:011
288299984,3cyclictest275-21systemd-journal11:55:250
288299980,1cyclictest14442-21apt-get11:40:120
28661280,1sleep30-21swapper/310:11:373
288429974,2cyclictest17550-21sh12:00:263
288429973,3cyclictest658-21snmpd09:05:123
288429973,3cyclictest6018-21df_inode08:40:133
288429973,3cyclictest3974-21awk07:25:003
288429973,3cyclictest19944-21latency_hist08:00:003
288429973,3cyclictest10729-21cron07:40:013
288429971,4cyclictest2297-21ssh10:35:133
288429971,2cyclictest7762-21cat07:30:213
288429971,2cyclictest31256-21ssh09:16:163
288429971,2cyclictest16483-21ssh09:45:233
288429970,5cyclictest489-21taskset08:25:473
288429970,5cyclictest30612-21ssh10:32:153
288429970,5cyclictest26048-21ssh12:05:303
288429970,3cyclictest16933-21ssh11:40:553
288429970,3cyclictest1066-21ssh10:53:363
288369976,1cyclictest4562-21ssh12:31:022
288369975,2cyclictest28-21ksoftirqd/207:20:012
288369973,3cyclictest9177-21ntpq10:00:192
288369973,3cyclictest275-21systemd-journal08:44:342
288339976,1cyclictest22-21ksoftirqd/112:34:591
288339973,3cyclictest658-21snmpd10:04:361
288339973,3cyclictest275-21systemd-journal08:20:001
288339973,3cyclictest26772-21diskstats10:30:131
288339971,0cyclictest0-21swapper/108:25:151
288299976,1cyclictest12-21ksoftirqd/010:00:010
288299975,2cyclictest12-21ksoftirqd/011:00:010
288299973,3cyclictest658-21snmpd08:46:390
288299973,3cyclictest28400-11brltty09:08:550
288299973,3cyclictest275-21systemd-journal10:22:230
288299971,1cyclictest141rcu_preempt10:11:580
19849270,0sleep20-21swapper/212:02:112
288429963,2cyclictest29686-21cat07:10:153
288429963,2cyclictest275-21systemd-journal08:30:083
288429963,2cyclictest15952-21perl07:50:153
288429963,2cyclictest14383-21mailstats07:45:203
288429962,3cyclictest4444-21expr07:25:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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