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2026-04-05 - 13:19
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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 all highest latencies:
System rackaslot8.osadl.org (updated Sun Apr 05, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270312287260,18sleep10-21swapper/119:08:141
268512284254,19sleep20-21swapper/219:06:102
270002267236,21sleep00-21swapper/019:07:490
268312262230,19sleep30-21swapper/319:05:553
211192880,0sleep10-21swapper/122:29:191
229972610,0sleep20-21swapper/223:09:082
156422570,0sleep10-21swapper/121:05:131
139502570,0sleep20-21swapper/223:42:072
162722560,0sleep00-21swapper/022:25:330
138732560,0sleep00-21swapper/022:25:010
35272550,0sleep00-21swapper/022:37:550
321982550,0sleep00-21swapper/023:14:460
155692370,0sleep20-21swapper/221:27:282
53912180,0sleep00-21swapper/000:35:150
301922160,0sleep00-21swapper/021:55:170
67682150,1sleep30-21swapper/322:20:163
89692120,0sleep00-21swapper/000:18:210
37392120,0sleep00-21swapper/019:25:180
27269991211,1cyclictest28-21ksoftirqd/200:00:002
27269991210,1cyclictest28-21ksoftirqd/222:40:012
2726999119,2cyclictest28-21ksoftirqd/223:40:002
2726999109,1cyclictest28-21ksoftirqd/221:10:002
2726999109,1cyclictest28-21ksoftirqd/220:30:012
2726999109,1cyclictest28-21ksoftirqd/219:15:012
2726999108,2cyclictest28-21ksoftirqd/221:55:012
2726999108,1cyclictest28-21ksoftirqd/220:45:012
2726999108,1cyclictest28-21ksoftirqd/200:00:012
8087290,1sleep1211rcuc/123:39:021
272699997,2cyclictest28-21ksoftirqd/223:00:012
272699997,1cyclictest28-21ksoftirqd/220:20:012
272699996,2cyclictest28-21ksoftirqd/222:45:132
24354290,0sleep30-21swapper/323:48:453
10745290,0sleep10-21swapper/123:20:241
5138280,0sleep10-21swapper/123:56:081
32547280,0sleep00-21swapper/023:34:200
272699987,1cyclictest28-21ksoftirqd/223:25:002
272699987,1cyclictest28-21ksoftirqd/222:55:012
272699987,1cyclictest28-21ksoftirqd/222:45:012
272699987,1cyclictest28-21ksoftirqd/222:30:012
272699987,1cyclictest28-21ksoftirqd/221:20:002
272699987,1cyclictest28-21ksoftirqd/219:35:012
272699987,1cyclictest28-21ksoftirqd/200:40:012
272699987,1cyclictest28-21ksoftirqd/200:10:002
272699987,1cyclictest271rcuc/223:50:132
272609983,4cyclictest275-21systemd-journal23:26:330
13467280,0chrt34-21ksoftirqd/300:00:543
272739975,2cyclictest34-21ksoftirqd/319:20:013
272739974,2cyclictest658-21snmpd22:48:193
272739974,2cyclictest504-21dbus-daemon23:50:443
272739973,3cyclictest658-21snmpd23:21:533
272739973,3cyclictest275-21systemd-journal22:42:453
272739973,3cyclictest275-21systemd-journal22:35:013
272739973,3cyclictest275-21systemd-journal22:12:133
272739973,3cyclictest14186-21ntpq21:00:183
272739973,2cyclictest275-21systemd-journal23:11:533
272739972,3cyclictest275-21systemd-journal00:10:003
272699976,1cyclictest28-21ksoftirqd/223:35:002
272699976,1cyclictest28-21ksoftirqd/223:15:002
272699976,1cyclictest28-21ksoftirqd/223:05:002
272699976,1cyclictest28-21ksoftirqd/222:20:012
272699976,1cyclictest28-21ksoftirqd/221:05:002
272699976,1cyclictest28-21ksoftirqd/221:00:012
272699976,1cyclictest28-21ksoftirqd/220:50:012
272699976,1cyclictest28-21ksoftirqd/220:40:012
272699976,1cyclictest28-21ksoftirqd/220:40:002
272699976,1cyclictest28-21ksoftirqd/220:05:012
272699976,1cyclictest28-21ksoftirqd/220:00:012
272699976,1cyclictest28-21ksoftirqd/219:40:012
272699976,1cyclictest28-21ksoftirqd/200:20:012
272699976,1cyclictest28-21ksoftirqd/200:20:002
272699975,2cyclictest28-21ksoftirqd/221:35:002
272699975,2cyclictest28-21ksoftirqd/219:15:012
272699973,3cyclictest658-21snmpd22:31:392
272699973,1cyclictest11160-21awk00:20:012
272699972,1cyclictest28-21ksoftirqd/223:47:492
272699972,1cyclictest28-21ksoftirqd/221:56:232
272699971,4cyclictest10279-21idleruntime-cro21:25:002
272699970,1cyclictest141rcu_preempt19:30:002
272659976,1cyclictest0-21swapper/123:40:131
272659973,3cyclictest658-21snmpd19:47:401
272659973,3cyclictest504-21dbus-daemon21:19:331
272659973,3cyclictest4029-21perf00:35:011
272659973,3cyclictest275-21systemd-journal23:29:531
272659973,3cyclictest275-21systemd-journal20:17:251
272659973,2cyclictest4410-21systemctl22:00:011
272659973,1cyclictest18893-21perf21:30:001
272659972,3cyclictest275-21systemd-journal21:30:241
272659972,2cyclictest27931-21idleruntime-cro00:30:011
272659971,5cyclictest0-21swapper/100:15:121
272659970,1cyclictest6419-21perl22:20:141
272659970,1cyclictest0-21swapper/122:59:331
272609974,2cyclictest658-21snmpd22:45:580
272609974,2cyclictest491-21systemd-logind00:30:010
272609973,3cyclictest658-21snmpd00:05:250
272609973,3cyclictest275-21systemd-journal20:29:560
14876270,0sleep10-21swapper/100:21:181
14876270,0sleep10-21swapper/100:21:181
272739966,0cyclictest0-21swapper/323:42:443
272739966,0cyclictest0-21swapper/321:32:133
272739963,2cyclictest9502-21sh22:02:323
272739963,2cyclictest8877-21sshd19:37:233
272739963,2cyclictest5815-21ssh00:15:563
272739963,2cyclictest26497-21cat23:30:163
272739963,2cyclictest21797-21grep00:25:203
272739963,2cyclictest21517-21ssh23:27:173
272739963,2cyclictest18985-21cat21:10:173
272739963,2cyclictest1575-21ssh22:17:073
272739962,3cyclictest8681-21cat23:00:163
272739962,3cyclictest658-21snmpd23:06:323
272739962,3cyclictest658-21snmpd22:55:223
272739962,3cyclictest658-21snmpd21:55:123
272739962,3cyclictest658-21snmpd21:05:093
272739962,3cyclictest658-21snmpd20:50:333
272739962,3cyclictest658-21snmpd20:48:563
272739962,3cyclictest658-21snmpd20:34:203
272739962,3cyclictest658-21snmpd19:53:463
272739962,3cyclictest658-21snmpd00:35:573
272739962,3cyclictest658-21snmpd00:23:523
272739962,3cyclictest658-21snmpd00:23:523
272739962,3cyclictest29765-21cat00:30:183
272739962,3cyclictest27623-21expr00:10:123
272739962,3cyclictest275-21systemd-journal19:21:553
272739962,3cyclictest2606-21sed20:35:143
272739962,3cyclictest2606-21sed20:35:143
272739962,3cyclictest24644-21seq20:11:193
272739962,3cyclictest16739-21fschecks_count19:55:143
272739962,2cyclictest34-21ksoftirqd/322:37:303
272739962,1cyclictest0-21swapper/323:16:433
272739962,1cyclictest0-21swapper/322:51:293
272739962,1cyclictest0-21swapper/321:17:213
272739961,2cyclictest34-21ksoftirqd/321:45:183
272739960,6cyclictest0-21swapper/321:40:243
272739960,0cyclictest0-21swapper/322:05:263
272739960,0cyclictest0-21swapper/321:39:543
272699965,1cyclictest28-21ksoftirqd/223:20:002
272699965,1cyclictest28-21ksoftirqd/222:05:012
272699965,1cyclictest28-21ksoftirqd/220:10:012
272699965,1cyclictest28-21ksoftirqd/219:25:012
272699965,1cyclictest271rcuc/222:15:012
272699964,2cyclictest28-21ksoftirqd/222:20:102
272699963,2cyclictest658-21snmpd21:36:072
272699963,2cyclictest504-21dbus-daemon20:10:122
272699963,2cyclictest25006-21sh21:14:242
272699963,2cyclictest20396-21cat00:25:122
272699962,3cyclictest658-21snmpd22:05:242
272699962,3cyclictest658-21snmpd19:54:552
272699962,3cyclictest3703-21basename21:40:102
272699962,3cyclictest30270-21grep00:30:212
272699962,3cyclictest275-21systemd-journal19:42:242
272699962,3cyclictest12448-21expr21:45:132
272699962,1cyclictest141rcu_preempt23:25:532
272699962,1cyclictest141rcu_preempt20:21:582
272699960,6cyclictest0-21swapper/200:10:462
272659966,0cyclictest0-21swapper/122:19:161
272659964,2cyclictest501-21in:imuxsock23:35:001
272659963,2cyclictest658-21snmpd22:08:481
272659963,2cyclictest4174-21sh22:38:251
272659963,2cyclictest32749-21sh21:37:491
272659963,2cyclictest29324-21ssh23:51:101
272659963,2cyclictest25034-21ssh00:08:281
272659963,2cyclictest24807-21rm22:30:451
272659963,2cyclictest21441-21ssh22:10:071
272659963,2cyclictest20187-21ssh23:45:331
272659963,1cyclictest0-21swapper/100:36:321
272659963,1cyclictest0-21swapper/100:02:581
272659962,3cyclictest658-21snmpd23:19:161
272659962,3cyclictest658-21snmpd23:03:531
272659962,3cyclictest658-21snmpd22:49:161
272659962,3cyclictest658-21snmpd22:40:521
272659962,3cyclictest658-21snmpd22:01:361
272659962,3cyclictest658-21snmpd21:22:461
272659962,3cyclictest658-21snmpd21:10:081
272659962,3cyclictest658-21snmpd20:25:561
272659962,3cyclictest658-21snmpd20:06:351
272659962,3cyclictest658-21snmpd19:54:251
272659962,3cyclictest658-21snmpd19:40:521
272659962,3cyclictest658-21snmpd19:39:431
272659962,3cyclictest658-21snmpd19:31:251
272659962,3cyclictest658-21snmpd19:26:581
272659962,3cyclictest31363-21sed19:15:181
272659962,3cyclictest27741-21expr20:20:131
272659962,3cyclictest16908-21sed19:55:141
272659962,2cyclictest658-21snmpd22:54:161
272659961,4cyclictest8459-21cron20:50:011
272659961,4cyclictest25486-21latency23:10:151
272659960,0cyclictest0-21swapper/100:11:281
272609966,0cyclictest0-21swapper/022:05:090
272609966,0cyclictest0-21swapper/000:21:260
272609966,0cyclictest0-21swapper/000:21:260
272609964,1cyclictest5416-21grep21:40:180
272609963,2cyclictest658-21snmpd21:06:530
272609963,2cyclictest4169-21ssh23:55:210
272609963,2cyclictest28295-21fschecks_time21:35:140
272609963,2cyclictest275-21systemd-journal21:32:060
272609963,2cyclictest275-21systemd-journal00:10:490
272609963,2cyclictest10980-21apt-get00:00:110
272609963,2cyclictest0-21swapper/022:58:360
272609963,1cyclictest0-21swapper/022:50:030
272609962,3cyclictest7377-21expr22:40:120
272609962,3cyclictest658-21snmpd23:41:060
272609962,3cyclictest658-21snmpd23:07:170
272609962,3cyclictest658-21snmpd22:10:240
272609962,3cyclictest658-21snmpd22:04:050
272609962,3cyclictest658-21snmpd21:25:130
272609962,3cyclictest658-21snmpd19:35:310
272609962,3cyclictest658-21snmpd19:17:090
272609962,3cyclictest658-21snmpd00:25:130
272609962,3cyclictest5208-21ntpq20:40:150
272609962,3cyclictest504-21dbus-daemon19:50:010
272609962,3cyclictest3016-21awk20:35:170
272609962,3cyclictest3016-21awk20:35:170
272609962,3cyclictest28219-21awk23:50:220
272609962,3cyclictest26966-21hddtemp_smartct21:15:150
272609962,3cyclictest24974-21munin-run20:15:010
272609962,3cyclictest19319-21cut23:45:180
272609962,3cyclictest17288-21ntpq19:55:170
272609962,3cyclictest1-21systemd23:21:030
272609962,3cyclictest1024-21cut23:15:130
272609961,3cyclictest7777-21rm23:00:060
272609961,3cyclictest1943-21rm22:17:240
272609960,6cyclictest0-21swapper/021:13:030
272739953,1cyclictest27904-21fschecks_count20:20:143
272739952,2cyclictest658-21snmpd19:10:273
272739952,2cyclictest5089-21fschecks_time19:30:153
272739952,2cyclictest3448-21ntpq23:55:173
272739952,2cyclictest2698-21expr19:25:123
272739952,2cyclictest26182-21uname20:15:163
272739952,2cyclictest2582-21wc21:20:123
272739952,2cyclictest20992-21cat20:05:143
272739952,2cyclictest18939-21cat20:00:143
272739952,2cyclictest1678-21ssh23:35:113
272739952,2cyclictest14096-21taskset22:25:053
272739952,2cyclictest12128-21basename20:55:193
272739952,2cyclictest11583-21acpi19:45:113
272739952,2cyclictest10579-21sensors19:40:183
272739951,3cyclictest11392-21cat21:25:133
272739951,2cyclictest275-21systemd-journal20:25:013
272739950,4cyclictest20389-21ssh21:50:063
272739950,3cyclictest275-21systemd-journal20:42:003
272699952,2cyclictest9017-21expr20:50:132
272699952,2cyclictest32572-21expr20:30:142
272699951,3cyclictest12254-21cat19:45:142
272659952,2cyclictest9592-21grep20:50:171
272659952,2cyclictest658-21snmpd19:20:051
272659952,2cyclictest5204-21ssh21:40:181
272659952,2cyclictest32071-21sed20:30:011
272659952,2cyclictest23026-21cpu20:10:121
272659952,2cyclictest20516-21ssh21:50:111
272659952,2cyclictest16094-21ssh23:05:021
272659952,2cyclictest14356-21sendmail_mailqu21:00:201
272659952,1cyclictest0-21swapper/121:45:101
272659951,3cyclictest4925-21cat20:40:131
272659951,3cyclictest2392-21cat20:35:121
272659951,3cyclictest2392-21cat20:35:121
272659951,3cyclictest19449-21expr20:00:171
272659951,3cyclictest11298-21cat20:55:131
272609953,1cyclictest969-21mailstats20:30:190
272609953,1cyclictest663-21runrttasks23:35:040
272609953,1cyclictest663-21runrttasks21:45:050
272609953,1cyclictest13454-21cat21:00:130
272609952,2cyclictest9116-21entropy20:50:140
272609952,2cyclictest21936-21cat20:05:200
272609952,2cyclictest21221-21cat21:50:150
272609952,2cyclictest1192-21awk19:20:170
272609952,2cyclictest11611-21cat20:55:150
272609951,3cyclictest4668-21cat19:30:140
272609951,3cyclictest2924-21sh21:20:130
272609951,3cyclictest27867-21/usr/sbin/munin20:20:130
272609951,3cyclictest27720-21cat19:10:120
272609951,3cyclictest26764-21grep20:15:200
272609951,3cyclictest14030-21cat19:50:120
272609950,4cyclictest9520-21expr19:40:130
272609950,4cyclictest19121-21gltestperf20:00:140
272609950,2cyclictest6578-21cpuspeed20:45:130
272609950,1cyclictest22502-21/usr/sbin/munin22:30:190
272659940,3cyclictest27466-21munin-node19:10:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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