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2026-04-15 - 23:14
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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 highest latencies:
System rackaslot8.osadl.org (updated Wed Apr 15, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
57012315285,20sleep20-21swapper/207:09:402
54812299269,20sleep10-21swapper/107:07:061
57262278248,20sleep00-21swapper/007:09:580
55612273239,22sleep30-21swapper/307:07:523
18542620,1sleep10-21swapper/111:51:231
148592580,0sleep10-21swapper/112:19:581
101552570,0sleep20-21swapper/211:36:392
58102550,0sleep00-21swapper/010:35:080
162762550,0sleep10-21swapper/110:01:001
160102530,0sleep00-21swapper/012:00:150
58382200,0sleep30-21swapper/312:14:163
290322200,0sleep10-21swapper/111:28:491
128092200,0chrt22-21ksoftirqd/107:21:281
299492190,0sleep10-21swapper/111:09:431
291392180,0sleep229103-21munin-run08:00:002
289032180,0sleep30-21swapper/309:10:123
225992180,0sleep00-21swapper/009:45:180
264762140,0sleep10-21swapper/111:46:391
71042120,0sleep10-21swapper/110:15:181
584099115,2cyclictest12-21ksoftirqd/008:30:000
5840991110,1cyclictest12-21ksoftirqd/010:00:010
251892110,0sleep30-21swapper/310:46:193
585299108,2cyclictest34-21ksoftirqd/311:20:013
585299108,2cyclictest34-21ksoftirqd/309:55:013
58529998,1cyclictest34-21ksoftirqd/307:40:013
58529997,2cyclictest34-21ksoftirqd/308:10:003
58529997,2cyclictest34-21ksoftirqd/307:15:013
58529992,1cyclictest141rcu_preempt12:15:113
58449996,2cyclictest22-21ksoftirqd/108:00:001
58449990,2cyclictest14555-21/usr/sbin/munin11:00:161
58409998,1cyclictest12-21ksoftirqd/007:15:010
58409997,1cyclictest12-21ksoftirqd/009:00:000
58409995,4cyclictest12-21ksoftirqd/010:30:010
58409994,3cyclictest275-21systemd-journal09:16:110
9703280,0sleep10-21swapper/107:15:151
58529987,1cyclictest34-21ksoftirqd/312:10:013
58529987,1cyclictest34-21ksoftirqd/311:50:003
58529987,1cyclictest34-21ksoftirqd/310:40:013
58529987,1cyclictest34-21ksoftirqd/307:15:023
58529986,1cyclictest34-21ksoftirqd/311:00:013
58529985,2cyclictest34-21ksoftirqd/310:20:023
58529984,3cyclictest275-21systemd-journal11:08:063
58529984,2cyclictest275-21systemd-journal09:02:503
58529983,1cyclictest141rcu_preempt10:50:113
58529983,1cyclictest141rcu_preempt09:30:123
58489983,3cyclictest19316-21awk08:50:002
58489982,3cyclictest12760-21munin-run09:39:592
58449984,3cyclictest275-21systemd-journal09:27:351
58409987,1cyclictest12-21ksoftirqd/012:40:000
58409987,1cyclictest12-21ksoftirqd/012:20:000
58409987,1cyclictest12-21ksoftirqd/012:00:000
58409987,1cyclictest12-21ksoftirqd/011:00:010
58409987,1cyclictest12-21ksoftirqd/009:55:010
58409987,1cyclictest12-21ksoftirqd/009:40:000
58409986,1cyclictest12-21ksoftirqd/008:00:000
58409984,0cyclictest12-21ksoftirqd/011:25:120
58409983,3cyclictest141rcu_preempt09:29:520
58409983,1cyclictest131rcuc/008:10:110
32307280,0sleep10-21swapper/108:05:171
58529976,1cyclictest34-21ksoftirqd/312:30:003
58529976,1cyclictest34-21ksoftirqd/311:05:013
58529976,1cyclictest34-21ksoftirqd/310:15:013
58529976,1cyclictest34-21ksoftirqd/309:50:003
58529976,1cyclictest34-21ksoftirqd/308:55:003
58529974,0cyclictest141rcu_preempt07:25:123
58529973,3cyclictest504-21dbus-daemon10:25:083
58529973,3cyclictest2200-21perl08:10:133
58529973,3cyclictest21548-21tail09:25:133
58529973,3cyclictest21111-21sshd12:23:303
58529973,2cyclictest275-21systemd-journal07:22:343
58529973,0cyclictest34-21ksoftirqd/311:20:163
58529972,1cyclictest141rcu_preempt11:55:113
58529971,5cyclictest7386-21grep11:35:143
58529971,1cyclictest141rcu_preempt08:25:133
58529971,1cyclictest141rcu_preempt07:45:133
58529970,5cyclictest2362-21ssh11:12:083
58489974,2cyclictest5956-21cron10:55:012
58489974,2cyclictest275-21systemd-journal09:54:172
58489973,3cyclictest658-21snmpd09:15:372
58489973,3cyclictest275-21systemd-journal08:52:112
58489973,3cyclictest275-21systemd-journal07:25:012
58449976,1cyclictest28235-21diskmemload09:43:311
58449973,3cyclictest658-21snmpd10:08:521
58449973,3cyclictest504-21dbus-daemon10:53:541
58449973,3cyclictest504-21dbus-daemon10:00:011
58449973,3cyclictest15739-21ntpq11:20:161
58449970,6cyclictest0-21swapper/110:32:001
58409976,1cyclictest12-21ksoftirqd/012:15:000
58409976,1cyclictest12-21ksoftirqd/011:35:000
58409976,1cyclictest12-21ksoftirqd/010:50:010
58409975,2cyclictest12-21ksoftirqd/008:50:000
58409975,1cyclictest26339-21sh11:06:520
58409975,1cyclictest12-21ksoftirqd/007:15:010
58409974,2cyclictest504-21dbus-daemon12:35:000
58409973,3cyclictest7756-21awk11:15:160
58409973,3cyclictest275-21systemd-journal11:13:150
58409973,3cyclictest275-21systemd-journal09:24:150
58409973,3cyclictest17864-11brltty08:21:130
58409973,1cyclictest12-21ksoftirqd/010:15:120
58409973,1cyclictest0-21swapper/009:10:070
58409972,1cyclictest141rcu_preempt11:45:100
58409972,1cyclictest12-21ksoftirqd/009:30:170
58409971,1cyclictest141rcu_preempt08:50:140
58529965,1cyclictest34-21ksoftirqd/309:10:003
58529965,1cyclictest34-21ksoftirqd/308:50:003
58529964,1cyclictest25515-21hddtemp_smartct07:50:143
58529963,2cyclictest6833-21grep09:55:183
58529963,2cyclictest4314-21ssh09:15:023
58529963,2cyclictest3896-21/usr/sbin/munin08:15:193
58529963,2cyclictest17874-21cron07:35:013
58529963,2cyclictest15398-21systemctl10:40:193
58529963,0cyclictest34-21ksoftirqd/311:40:193
58529962,3cyclictest658-21snmpd12:30:053
58529962,3cyclictest658-21snmpd08:40:123
58529962,3cyclictest658-21snmpd08:00:203
58529962,3cyclictest658-21snmpd07:56:143
58529962,3cyclictest5122-21cat09:35:113
58529962,1cyclictest331rcuc/312:00:133
58529962,1cyclictest0-21swapper/309:44:483
58529962,0cyclictest34-21ksoftirqd/311:30:153
58529962,0cyclictest34-21ksoftirqd/311:25:033
58529962,0cyclictest34-21ksoftirqd/310:32:493
58529961,2cyclictest34-21ksoftirqd/310:06:113
58529961,1cyclictest141rcu_preempt11:50:113
58529960,5cyclictest8035-21cat12:35:153
58529960,5cyclictest11457-21memory08:30:163
58529960,1cyclictest34-21ksoftirqd/308:35:113
58529960,1cyclictest141rcu_preempt10:20:113
58529960,1cyclictest141rcu_preempt09:20:113
58489966,0cyclictest8280-21ntpq12:15:162
58489966,0cyclictest0-21swapper/211:13:482
58489966,0cyclictest0-21swapper/211:05:162
58489963,3cyclictest0-21swapper/210:16:502
58489963,2cyclictest845-21ssh12:30:222
58489963,2cyclictest7791-21ssh10:35:252
58489963,2cyclictest663-21runrttasks11:46:012
58489963,2cyclictest658-21snmpd11:25:092
58489963,2cyclictest5660-21ssh12:14:072
58489963,2cyclictest5063-21systemctl08:15:192
58489963,2cyclictest491-21systemd-logind08:40:242
58489963,2cyclictest3913-21sh11:33:102
58489963,2cyclictest275-21systemd-journal09:48:022
58489963,2cyclictest26373-21ssh10:47:142
58489963,2cyclictest23623-21sh12:05:132
58489963,2cyclictest18347-21sh09:23:182
58489963,2cyclictest17821-21ssh12:01:112
58489963,2cyclictest16765-21sh11:20:352
58489963,2cyclictest15229-21ssh09:40:312
58489963,2cyclictest13758-21sshd12:39:102
58489963,1cyclictest0-21swapper/210:58:002
58489962,3cyclictest658-21snmpd11:56:192
58489962,3cyclictest658-21snmpd11:40:422
58489962,3cyclictest658-21snmpd10:26:402
58489962,3cyclictest658-21snmpd10:21:432
58489962,3cyclictest658-21snmpd09:29:342
58489962,3cyclictest658-21snmpd08:36:332
58489962,3cyclictest658-21snmpd08:31:122
58489962,3cyclictest658-21snmpd08:10:592
58489962,3cyclictest658-21snmpd07:50:522
58489962,3cyclictest658-21snmpd07:43:402
58489962,3cyclictest30730-21cat10:10:152
58489962,3cyclictest30253-21ntpq09:30:162
58489962,3cyclictest275-21systemd-journal09:00:002
58489962,3cyclictest15632-21ntpq11:00:182
58489962,1cyclictest0-21swapper/210:30:392
58489962,1cyclictest0-21swapper/210:06:352
58489962,1cyclictest0-21swapper/209:57:192
58489961,4cyclictest0-21swapper/210:00:122
58489960,3cyclictest275-21systemd-journal10:43:102
58449966,0cyclictest0-21swapper/112:14:581
58449964,1cyclictest0-21swapper/108:20:001
58449963,2cyclictest932-21ssh09:51:461
58449963,2cyclictest658-21snmpd12:05:071
58449963,2cyclictest658-21snmpd09:03:211
58449963,2cyclictest658-21snmpd07:45:071
58449963,2cyclictest275-21systemd-journal11:31:111
58449963,2cyclictest275-21systemd-journal11:10:011
58449963,2cyclictest26953-21kernelversion09:05:151
58449963,2cyclictest23675-21ssh09:45:481
58449963,2cyclictest23634-21cat10:25:201
58449963,2cyclictest22726-21awk08:55:171
58449963,2cyclictest21518-21cron08:55:011
58449963,2cyclictest19752-21ssh10:23:331
58449963,2cyclictest14524-21sh10:40:141
58449963,2cyclictest13486-21cat09:20:131
58449963,2cyclictest12998-21sh11:19:031
58449963,2cyclictest11615-21ssh11:37:491
58449962,3cyclictest7500-21expr12:35:131
58449962,3cyclictest7152-21cat10:55:141
58449962,3cyclictest658-21snmpd10:11:371
58449962,3cyclictest658-21snmpd08:35:181
58449962,3cyclictest658-21snmpd07:50:221
58449962,3cyclictest658-21snmpd07:39:521
58449962,3cyclictest6399-21diskstats10:35:141
58449962,3cyclictest24534-21ntpq12:25:171
58449961,4cyclictest32507-21ntp_states12:30:151
58449960,6cyclictest0-21swapper/112:02:421
58449960,6cyclictest0-21swapper/109:35:421
58449960,5cyclictest22682-21sh10:45:161
58409965,1cyclictest12-21ksoftirqd/012:20:110
58409964,2cyclictest12-21ksoftirqd/008:10:000
58409964,1cyclictest12-21ksoftirqd/007:25:010
58409963,2cyclictest5155-21ssh10:34:470
58409963,2cyclictest27378-21awk09:05:180
58409963,2cyclictest24760-21sh10:06:160
58409963,2cyclictest12-21ksoftirqd/011:38:270
58409962,3cyclictest658-21snmpd09:00:210
58409962,3cyclictest658-21snmpd07:36:410
58409962,3cyclictest658-21snmpd07:21:360
58409962,3cyclictest30548-21grep10:10:140
58409962,3cyclictest15038-21grep11:00:150
58409962,3cyclictest1-21systemd07:30:060
58409962,1cyclictest50950irq/137-enp4s0-10:00:230
58409962,1cyclictest141rcu_preempt11:40:520
58409962,0cyclictest12-21ksoftirqd/010:41:140
58409962,0cyclictest12-21ksoftirqd/007:45:160
58409962,0cyclictest12-21ksoftirqd/007:40:110
58409961,1cyclictest141rcu_preempt11:50:130
58409961,1cyclictest141rcu_preempt09:40:100
58409960,6cyclictest0-21swapper/010:51:500
58409960,4cyclictest14654-21sshd08:37:470
58409960,2cyclictest12-21ksoftirqd/010:20:430
58409960,1cyclictest141rcu_preempt12:25:130
58409960,1cyclictest141rcu_preempt11:20:040
58529952,2cyclictest20750-21expr07:40:123
58529952,0cyclictest34-21ksoftirqd/308:20:133
58529951,1cyclictest141rcu_preempt10:00:113
58529950,3cyclictest275-21systemd-journal08:55:113
58489953,1cyclictest9530-21idleruntime07:15:142
58489952,2cyclictest8539-21sort08:25:132
58489952,2cyclictest6980-21ntp_kernel_pll_07:10:182
58489952,2cyclictest658-21snmpd09:05:082
58489952,2cyclictest658-21snmpd07:35:042
58489952,2cyclictest6318-21grep08:20:122
58489952,2cyclictest31722-21expr08:05:132
58489952,2cyclictest31194-21sh11:50:122
58489952,2cyclictest30047-21cat08:00:162
58489952,2cyclictest29087-21sh09:10:122
58489952,2cyclictest24707-21cat09:00:142
58489952,2cyclictest11333-21cpuspeed_turbos07:20:122
58489951,3cyclictest658-21snmpd12:25:042
58489951,3cyclictest658-21snmpd12:20:072
58489951,3cyclictest24665-21/usr/sbin/munin07:50:002
58489951,3cyclictest15978-21cat07:30:112
58489950,3cyclictest275-21systemd-journal11:15:102
58449952,2cyclictest7151-21open_inodes08:20:171
58449952,2cyclictest658-21snmpd11:40:041
58449952,2cyclictest658-21snmpd09:30:101
58449952,2cyclictest658-21snmpd09:15:071
58449952,2cyclictest658-21snmpd09:11:041
58449952,2cyclictest30015-21cat08:00:161
58449951,3cyclictest6921-21ssh11:55:111
58449951,3cyclictest658-21snmpd08:45:481
58449951,3cyclictest658-21snmpd08:25:171
58449951,3cyclictest658-21snmpd07:40:101
58449951,3cyclictest658-21snmpd07:25:071
58449951,3cyclictest6279-21ls07:10:131
58449951,3cyclictest1650-21packagekitd08:10:011
58449951,3cyclictest16049-21grep07:30:111
58449951,3cyclictest15511-21diskstats08:40:141
58449951,3cyclictest15295-21sh12:20:071
58449950,4cyclictest10639-21/usr/sbin/munin08:30:131
58409953,1cyclictest3922-21apt08:15:120
58409952,2cyclictest674-21lldpd08:40:170
58409952,0cyclictest12-21ksoftirqd/012:05:080
58409952,0cyclictest12-21ksoftirqd/008:30:130
58409951,3cyclictest658-21snmpd08:00:080
58409951,3cyclictest658-21snmpd07:50:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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