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2026-01-05 - 06:52
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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 Mon Jan 05, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139532309245,21sleep20-21swapper/219:05:442
141652278247,21sleep10-21swapper/119:08:131
139882260230,18sleep30-21swapper/319:05:583
142422257225,21sleep00-21swapper/019:09:120
78182620,0sleep20-21swapper/223:03:262
311552580,0sleep10-21swapper/122:58:081
270362580,0sleep10-21swapper/123:14:391
170372580,0sleep10-21swapper/100:04:551
47192560,0sleep10-21swapper/100:35:141
295862560,0sleep20-21swapper/219:40:172
7092200,0sleep30-21swapper/322:03:173
107902200,0sleep10-21swapper/120:10:181
297362190,0sleep00-21swapper/023:15:220
295982190,0sleep30-21swapper/322:38:283
58322160,0sleep15751-21apt-key22:25:011
90452140,0sleep30-21swapper/322:26:073
14408991410,3cyclictest22-21ksoftirqd/121:20:001
137212130,0sleep10-21swapper/121:33:391
14408991211,1cyclictest22-21ksoftirqd/100:00:001
118172120,0sleep10-21swapper/123:43:131
35152110,0sleep20-21swapper/219:55:152
269222110,1sleep326921-21ssh00:10:143
1440899119,1cyclictest22-21ksoftirqd/123:05:001
14408991110,1cyclictest22-21ksoftirqd/122:20:011
1440899110,2cyclictest22-21ksoftirqd/121:45:001
1440899109,1cyclictest22-21ksoftirqd/123:50:001
1440899109,1cyclictest22-21ksoftirqd/121:10:001
1440499109,1cyclictest12-21ksoftirqd/022:20:010
144139994,3cyclictest275-21systemd-journal20:40:192
144089998,1cyclictest22-21ksoftirqd/120:45:011
144089998,1cyclictest22-21ksoftirqd/100:15:021
144089997,2cyclictest22-21ksoftirqd/122:00:021
144089997,1cyclictest22-21ksoftirqd/122:40:021
144089993,4cyclictest22-21ksoftirqd/100:34:431
144089992,4cyclictest22-21ksoftirqd/121:10:131
144049998,1cyclictest12-21ksoftirqd/021:39:590
912280,0sleep20-21swapper/223:17:552
3672280,0sleep00-21swapper/021:45:530
30301280,0sleep30-21swapper/322:20:153
144159984,3cyclictest275-21systemd-journal23:21:293
144089987,1cyclictest22-21ksoftirqd/120:59:591
144089987,1cyclictest22-21ksoftirqd/119:45:001
144089987,1cyclictest22-21ksoftirqd/119:15:011
144089987,1cyclictest211rcuc/119:25:001
144089986,2cyclictest22-21ksoftirqd/122:10:021
144089985,2cyclictest22-21ksoftirqd/120:20:001
144089985,2cyclictest22-21ksoftirqd/119:55:011
144089985,1cyclictest211rcuc/123:22:141
144089983,3cyclictest22-21ksoftirqd/122:44:151
144089983,3cyclictest22-21ksoftirqd/100:05:531
144089982,4cyclictest22-21ksoftirqd/123:29:541
144089982,4cyclictest211rcuc/122:03:591
144089981,5cyclictest22-21ksoftirqd/122:49:141
144089981,4cyclictest22-21ksoftirqd/122:14:251
144089981,4cyclictest0-21swapper/123:32:581
144089980,2cyclictest22-21ksoftirqd/123:05:131
144049988,0cyclictest121ksoftirqd/023:10:010
144049987,1cyclictest12-21ksoftirqd/021:29:590
144049986,1cyclictest121ksoftirqd/019:45:010
144049985,1cyclictest24306-21ssh21:20:280
144049984,1cyclictest12-21ksoftirqd/000:35:000
144049982,4cyclictest22809-21turbostat23:50:000
144049981,5cyclictest141rcu_preempt00:17:060
144159973,3cyclictest658-21snmpd21:29:263
144159973,3cyclictest658-21snmpd20:27:383
144159973,3cyclictest2208-21cstates23:00:143
144159972,3cyclictest275-21systemd-journal20:36:293
144139975,1cyclictest19515-21ssh00:25:022
144139975,1cyclictest19515-21ssh00:25:022
144139975,1cyclictest0-21swapper/221:10:022
144139974,2cyclictest9664-21grep00:00:162
144139973,3cyclictest658-21snmpd19:54:482
144139973,3cyclictest658-21snmpd00:24:382
144139973,3cyclictest275-21systemd-journal23:14:292
144089976,1cyclictest22-21ksoftirqd/121:40:001
144089976,1cyclictest22-21ksoftirqd/119:40:001
144089976,1cyclictest22-21ksoftirqd/119:35:001
144089973,3cyclictest22-21ksoftirqd/121:20:481
144089972,3cyclictest22-21ksoftirqd/123:15:401
144089972,3cyclictest22-21ksoftirqd/122:50:131
144089972,3cyclictest22-21ksoftirqd/121:25:331
144089972,3cyclictest22-21ksoftirqd/100:25:261
144089972,3cyclictest22-21ksoftirqd/100:25:251
144089972,3cyclictest211rcuc/100:11:241
144089972,1cyclictest141rcu_preempt21:00:151
144089971,4cyclictest22-21ksoftirqd/123:46:571
144089971,4cyclictest22-21ksoftirqd/122:30:211
144089971,4cyclictest22-21ksoftirqd/122:30:211
144089971,4cyclictest22-21ksoftirqd/121:45:421
144089971,4cyclictest22-21ksoftirqd/120:50:181
144089971,4cyclictest22-21ksoftirqd/100:21:341
144089971,4cyclictest211rcuc/123:35:151
144089970,5cyclictest27118-21vmstat20:45:191
144089970,5cyclictest22-21ksoftirqd/122:23:081
144089970,5cyclictest22-21ksoftirqd/121:50:421
144049976,1cyclictest12-21ksoftirqd/023:55:010
144049975,1cyclictest12-21ksoftirqd/019:20:000
144049973,3cyclictest658-21snmpd21:43:030
144049973,3cyclictest31553-21users20:55:210
144049973,3cyclictest1-21systemd00:00:220
144049973,3cyclictest0-21swapper/023:28:060
144049973,1cyclictest141rcu_preempt21:10:180
144049972,3cyclictest12-21ksoftirqd/023:40:280
144049972,1cyclictest141rcu_preempt23:36:470
460260,0sleep20-21swapper/222:59:262
144159966,0cyclictest0-21swapper/321:11:053
144159965,1cyclictest28997-21ssh22:19:553
144159964,1cyclictest21284-21users19:20:243
144159963,2cyclictest8325-21ssh22:45:103
144159963,2cyclictest5739-21ssh22:43:253
144159963,2cyclictest504-21dbus-daemon20:34:023
144159963,2cyclictest504-21dbus-daemon20:34:023
144159963,2cyclictest4248-21sh21:46:173
144159963,2cyclictest27996-21ssh23:15:103
144159963,2cyclictest22804-21sshd23:11:313
144159963,2cyclictest1840-21ssh23:55:253
144159963,2cyclictest16805-21ssh23:45:353
144159963,2cyclictest14714-21ssh23:25:253
144159962,3cyclictest658-21snmpd23:06:063
144159962,3cyclictest658-21snmpd22:10:233
144159962,3cyclictest658-21snmpd21:41:303
144159962,3cyclictest658-21snmpd21:34:303
144159962,3cyclictest658-21snmpd19:49:273
144159962,3cyclictest658-21snmpd00:39:543
144159962,3cyclictest658-21snmpd00:28:203
144159962,3cyclictest658-21snmpd00:28:193
144159962,3cyclictest658-21snmpd00:15:163
144159962,3cyclictest29888-21expr00:30:233
144159962,3cyclictest23860-21sshd19:25:513
144159962,3cyclictest22482-21ntpq23:30:163
144159962,3cyclictest18896-21cat19:15:223
144159962,3cyclictest0-21swapper/300:21:333
144159962,2cyclictest13976-1kworker/u9:122:54:123
144159962,1cyclictest13976-1kworker/u9:122:00:003
144159962,1cyclictest0-21swapper/322:09:483
144159960,6cyclictest0-21swapper/323:36:033
144159960,6cyclictest0-21swapper/322:55:243
144159960,6cyclictest0-21swapper/322:31:053
144159960,6cyclictest0-21swapper/322:31:053
144159960,6cyclictest0-21swapper/321:20:203
144159960,5cyclictest23564-21/usr/sbin/munin23:50:213
144159960,3cyclictest275-21systemd-journal20:41:063
144159960,0cyclictest0-21swapper/321:36:283
144139966,0cyclictest0-21swapper/222:11:102
144139963,2cyclictest7253-21ntp_states23:40:192
144139963,2cyclictest658-21snmpd21:55:582
144139963,2cyclictest658-21snmpd21:45:572
144139963,2cyclictest658-21snmpd19:26:572
144139963,2cyclictest3964-21cat22:05:132
144139963,2cyclictest29396-21pmu-power00:30:202
144139963,2cyclictest27118-21ssh22:00:052
144139963,2cyclictest25532-21acpi20:45:102
144139963,2cyclictest23285-21ssh00:08:132
144139963,2cyclictest19460-21ssh22:32:232
144139963,2cyclictest19460-21ssh22:32:232
144139963,2cyclictest17699-21ssh23:27:372
144139963,2cyclictest17511-21sh23:46:072
144139963,2cyclictest14862-21rm21:15:182
144139963,2cyclictest13979-21sh22:48:102
144139962,3cyclictest9803-21cut20:10:012
144139962,3cyclictest658-21snmpd23:54:192
144139962,3cyclictest658-21snmpd23:35:432
144139962,3cyclictest658-21snmpd22:26:372
144139962,3cyclictest658-21snmpd22:20:252
144139962,3cyclictest658-21snmpd21:36:212
144139962,3cyclictest658-21snmpd20:51:202
144139962,3cyclictest658-21snmpd20:38:012
144139962,3cyclictest658-21snmpd20:03:162
144139962,3cyclictest658-21snmpd00:36:002
144139962,3cyclictest658-21snmpd00:18:372
144139962,3cyclictest504-21dbus-daemon21:25:002
144139962,3cyclictest23866-21cat22:35:132
144139962,3cyclictest17927-21wc22:50:162
144139962,3cyclictest15670-21awk19:10:172
144139962,3cyclictest10661-21cat21:50:162
144139962,1cyclictest0-21swapper/223:57:142
144139962,1cyclictest0-21swapper/223:24:372
144139962,1cyclictest0-21swapper/221:42:322
144139962,1cyclictest0-21swapper/221:26:052
144139960,6cyclictest0-21swapper/223:30:122
144139960,6cyclictest0-21swapper/220:55:142
144139960,0cyclictest0-21swapper/200:10:432
144089965,1cyclictest22-21ksoftirqd/119:15:011
144089964,0cyclictest141rcu_preempt20:00:161
144089963,2cyclictest275-21systemd-journal20:29:231
144089962,3cyclictest504-21dbus-daemon19:45:121
144089962,3cyclictest19529-21cat20:30:171
144089962,3cyclictest19529-21cat20:30:161
144089961,3cyclictest23073-21perf20:40:011
144089960,4cyclictest22-21ksoftirqd/120:20:181
144089960,2cyclictest22-21ksoftirqd/119:20:131
144089960,1cyclictest0-21swapper/119:55:181
144049966,0cyclictest121ksoftirqd/019:35:000
144049966,0cyclictest0-21swapper/023:00:470
144049966,0cyclictest0-21swapper/000:35:270
144049965,1cyclictest12-21ksoftirqd/022:00:120
144049964,1cyclictest12-21ksoftirqd/022:40:140
144049963,2cyclictest8293-21ssh22:45:080
144049963,2cyclictest658-21snmpd23:10:030
144049963,2cyclictest314-21sshd19:45:540
144049963,2cyclictest22519-21sh22:34:380
144049963,2cyclictest22519-21sh22:34:380
144049963,2cyclictest21287-21ssh23:30:060
144049963,2cyclictest14075-21awk22:10:240
144049963,1cyclictest141rcu_preempt21:00:130
144049962,3cyclictest658-21snmpd22:55:230
144049962,3cyclictest658-21snmpd22:50:200
144049962,3cyclictest658-21snmpd21:30:020
144049962,3cyclictest658-21snmpd21:05:350
144049962,3cyclictest658-21snmpd20:10:030
144049962,3cyclictest658-21snmpd20:09:360
144049962,3cyclictest658-21snmpd20:00:450
144049962,3cyclictest658-21snmpd19:50:280
144049962,3cyclictest658-21snmpd19:37:030
144049962,3cyclictest658-21snmpd19:21:590
144049962,3cyclictest658-21snmpd00:05:440
144049962,3cyclictest6460-21cat22:25:150
144049962,3cyclictest504-21dbus-daemon20:19:470
144049962,3cyclictest24005-21cat20:40:160
144049962,3cyclictest19899-21sort00:25:120
144049962,3cyclictest19899-21sort00:25:120
144049962,3cyclictest16234-21sshd19:10:480
144049962,3cyclictest1-21systemd19:25:000
144049962,2cyclictest275-21systemd-journal22:05:470
144049962,1cyclictest141rcu_preempt23:55:130
144049962,1cyclictest141rcu_preempt00:20:190
144049962,1cyclictest0-21swapper/023:20:540
144049962,1cyclictest0-21swapper/022:22:080
144049962,1cyclictest0-21swapper/021:19:090
144049961,3cyclictest275-21systemd-journal00:10:410
144049961,3cyclictest16371-21turbostat20:25:010
144049960,6cyclictest0-21swapper/022:37:130
144049960,1cyclictest141rcu_preempt21:50:140
144159953,1cyclictest29404-21grep19:40:163
144159952,2cyclictest658-21snmpd21:00:013
144159952,2cyclictest658-21snmpd20:00:213
144159952,2cyclictest658-21snmpd19:35:033
144159952,2cyclictest4032-21diskmemload23:40:013
144159952,2cyclictest2461-21forks21:05:183
144159952,2cyclictest21280-21kworker/u8:100:00:003
144159952,2cyclictest15517-21rt-features20:20:213
144159952,2cyclictest14829-21cstates19:10:123
144159952,2cyclictest14254-21hwlatdetect21:15:143
144159952,2cyclictest12399-21cat20:15:173
144159952,2cyclictest10963-21sh21:50:183
144159952,2cyclictest0-21swapper/300:05:003
144159951,3cyclictest658-21snmpd20:05:043
144159951,3cyclictest504-21dbus-daemon19:30:073
144159951,3cyclictest3436-21expr19:55:143
144159951,3cyclictest30793-21load20:55:173
144159951,3cyclictest25785-21expr20:45:113
144159951,3cyclictest1593-21/usr/sbin/munin19:50:203
144159951,3cyclictest10279-21df20:10:163
144159950,1cyclictest28574-21memory20:50:173
144139953,1cyclictest9752-11brltty20:31:032
144139953,1cyclictest9752-11brltty20:31:032
144139952,2cyclictest7784-21sh21:30:132
144139952,2cyclictest658-21snmpd21:02:012
144139952,2cyclictest658-21snmpd19:30:292
144139952,2cyclictest32085-21ssh22:40:082
144139952,2cyclictest31172-21dpkg19:45:092
144139952,2cyclictest21139-21cat19:20:232
144139952,2cyclictest20798-21ssh22:15:062
144139952,2cyclictest16747-21expr20:25:122
144139952,2cyclictest14954-21head20:20:162
144139952,2cyclictest13326-21cut20:15:222
144139952,2cyclictest10572-21cat20:10:182
144139951,3cyclictest2652-21/usr/sbin/munin21:05:192
144139951,3cyclictest17132-21cat19:15:012
144139950,4cyclictest10611-21ssh23:05:052
144089950,4cyclictest0-21swapper/120:05:141
144049952,2cyclictest658-21snmpd20:30:260
144049952,2cyclictest658-21snmpd20:30:260
144049952,2cyclictest3309-21cat19:55:140
144049952,2cyclictest25288-21cron20:45:000
144049952,2cyclictest21101-21cpu20:35:120
144049952,2cyclictest17859-21cat20:25:210
144049951,3cyclictest20256-21/usr/sbin/munin21:55:220
144049951,1cyclictest141rcu_preempt20:50:140
144139940,3cyclictest275-21systemd-journal19:35:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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