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2026-04-14 - 09:24
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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 Tue Apr 14, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
170642288264,14sleep20-21swapper/219:06:582
170732283257,17sleep10-21swapper/119:07:051
171852269210,49sleep00-21swapper/019:08:330
171942259227,22sleep30-21swapper/319:08:403
215602680,0sleep10-21swapper/121:56:511
7522580,0sleep30-21swapper/322:24:083
249702580,0sleep30-21swapper/320:35:163
148272580,0sleep10-21swapper/122:32:191
88652540,0sleep20-21swapper/221:30:002
100352480,0sleep00-21swapper/000:26:570
240472370,0sleep30-21swapper/322:38:013
225682200,0sleep20-21swapper/222:17:142
22732190,0sleep20-21swapper/222:44:412
170822190,0sleep30-21swapper/322:14:233
14262190,0sleep228-21ksoftirqd/221:45:072
101252190,0sleep20-21swapper/223:47:552
166622180,0sleep00-21swapper/021:15:010
115772180,0sleep30-21swapper/321:11:153
74672170,0sleep10-21swapper/122:47:201
297392170,0sleep10-21swapper/122:21:251
171382130,0sleep00-21swapper/023:12:500
17412991210,2cyclictest22-21ksoftirqd/119:15:011
1741499119,2cyclictest28-21ksoftirqd/221:55:012
17412991110,1cyclictest22-21ksoftirqd/123:50:001
17412991110,1cyclictest22-21ksoftirqd/100:25:011
1741299108,2cyclictest22-21ksoftirqd/123:40:001
1741299108,2cyclictest211rcuc/100:00:001
1741299108,1cyclictest22-21ksoftirqd/122:20:011
1741299108,1cyclictest22-21ksoftirqd/119:40:011
1741299107,2cyclictest22-21ksoftirqd/120:00:011
164712100,1sleep10-21swapper/100:30:351
30176290,0sleep20-21swapper/222:21:462
23461290,0sleep20-21swapper/223:35:502
174129998,1cyclictest22-21ksoftirqd/123:20:001
174129998,1cyclictest22-21ksoftirqd/121:55:011
174129998,1cyclictest22-21ksoftirqd/100:20:011
174129997,2cyclictest22-21ksoftirqd/121:00:001
174129997,2cyclictest22-21ksoftirqd/119:15:011
174129997,1cyclictest211rcuc/120:30:011
174129996,3cyclictest22-21ksoftirqd/100:00:011
174129991,5cyclictest22-21ksoftirqd/121:25:191
8710280,0chrt0-21swapper/200:06:292
31037280,0sleep20-21swapper/221:43:052
174179983,3cyclictest275-21systemd-journal21:02:043
174149982,1cyclictest141rcu_preempt19:45:012
174149980,2cyclictest18165-21ssh23:52:472
174129987,1cyclictest22-21ksoftirqd/123:45:001
174129987,1cyclictest22-21ksoftirqd/123:35:001
174129987,1cyclictest22-21ksoftirqd/120:50:001
174129987,1cyclictest22-21ksoftirqd/120:05:011
174129987,1cyclictest22-21ksoftirqd/119:55:011
174129986,1cyclictest22-21ksoftirqd/120:20:011
174129985,2cyclictest22-21ksoftirqd/100:10:011
174129983,3cyclictest22-21ksoftirqd/121:47:341
174129982,4cyclictest12359-21cron23:30:001
174129982,3cyclictest22-21ksoftirqd/119:45:201
174129981,5cyclictest22-21ksoftirqd/122:35:151
174129981,2cyclictest22-21ksoftirqd/121:30:011
23204270,0sleep30-21swapper/322:17:433
174179976,1cyclictest34-21ksoftirqd/323:20:003
174179973,3cyclictest658-21snmpd23:59:423
174179973,3cyclictest5680-21awk23:05:213
174179973,1cyclictest0-21swapper/300:07:253
174179972,3cyclictest275-21systemd-journal19:21:503
174149976,1cyclictest28-21ksoftirqd/222:50:002
174149976,1cyclictest28-21ksoftirqd/221:10:002
174149976,1cyclictest28-21ksoftirqd/220:55:002
174149974,2cyclictest28-21ksoftirqd/221:15:132
174149971,3cyclictest560-21gdbus20:40:012
174129976,1cyclictest22-21ksoftirqd/123:00:001
174129976,1cyclictest22-21ksoftirqd/122:30:011
174129976,1cyclictest22-21ksoftirqd/120:55:001
174129976,1cyclictest22-21ksoftirqd/119:30:011
174129974,1cyclictest22-21ksoftirqd/100:10:011
174129973,3cyclictest27807-21diskstats22:40:131
174129973,1cyclictest141rcu_preempt22:00:131
174129972,1cyclictest141rcu_preempt22:10:271
174129972,1cyclictest141rcu_preempt21:15:201
174129971,4cyclictest22-21ksoftirqd/123:09:561
174129971,4cyclictest22-21ksoftirqd/122:53:381
174129971,4cyclictest22-21ksoftirqd/122:05:561
174129970,5cyclictest25415-21ps20:35:191
174129970,4cyclictest26733-21grep21:20:201
174129970,3cyclictest116742rm21:11:201
174079975,1cyclictest12-21ksoftirqd/022:35:010
174079974,2cyclictest504-21dbus-daemon19:16:020
174079973,3cyclictest658-21snmpd21:36:070
174079973,3cyclictest12355-21cron23:30:000
174079973,2cyclictest19137-21latency_hist22:55:000
174079972,4cyclictest658-21snmpd21:12:330
174079972,4cyclictest504-21dbus-daemon21:59:440
174079972,2cyclictest26173-21plymouth22:20:010
8520260,0sleep30-21swapper/322:09:063
26982260,1sleep027190-21hddtemp_smartct20:40:140
174179966,0cyclictest17373-21ssh00:11:363
174179965,1cyclictest34-21ksoftirqd/321:00:003
174179965,1cyclictest0-21swapper/300:03:033
174179963,3cyclictest16949-21apt-get21:15:133
174179963,2cyclictest9060-21hwlatdetect20:00:153
174179963,2cyclictest7846-21ssh23:46:093
174179963,2cyclictest658-21snmpd20:32:083
174179963,2cyclictest5787-21ssh21:47:163
174179963,2cyclictest5540-21ssh00:24:513
174179963,2cyclictest31718-21sshd22:42:223
174179963,2cyclictest275-21systemd-journal19:25:013
174179963,2cyclictest20647-21sh21:56:073
174179963,2cyclictest18811-21systemctl21:35:173
174179963,2cyclictest18367-21ssh23:33:153
174179963,2cyclictest18105-21wc20:20:163
174179963,2cyclictest18105-21wc20:20:163
174179963,2cyclictest14991-21head23:50:213
174179963,2cyclictest13987-21ssh21:32:373
174179963,1cyclictest0-21swapper/323:04:203
174179962,3cyclictest658-21snmpd23:12:373
174179962,3cyclictest658-21snmpd22:50:283
174179962,3cyclictest658-21snmpd22:25:153
174179962,3cyclictest658-21snmpd22:03:123
174179962,3cyclictest658-21snmpd20:46:233
174179962,3cyclictest658-21snmpd20:40:383
174179962,3cyclictest658-21snmpd19:51:283
174179962,3cyclictest23003-21expr00:35:133
174179962,3cyclictest2172-21smart_sda21:25:193
174179962,3cyclictest13726-21grep20:10:143
174179962,2cyclictest30568-21gzip23:40:183
174179962,1cyclictest0-21swapper/323:26:513
174179962,1cyclictest0-21swapper/323:21:003
174179961,4cyclictest10802-21sh21:50:173
174179960,6cyclictest0-21swapper/322:58:503
174179960,6cyclictest0-21swapper/322:45:073
174179960,6cyclictest0-21swapper/322:32:293
174179960,6cyclictest0-21swapper/321:24:383
174179960,6cyclictest0-21swapper/319:18:353
174179960,5cyclictest8318-21latency_hist20:00:013
174179960,0cyclictest0-21swapper/323:36:003
174179960,0cyclictest0-21swapper/300:32:463
174149966,0cyclictest0-21swapper/222:39:252
174149966,0cyclictest0-21swapper/222:27:462
174149963,2cyclictest6229-21ssh23:05:432
174149963,2cyclictest504-21dbus-daemon23:12:462
174149963,2cyclictest504-21dbus-daemon21:00:002
174149963,2cyclictest32452-21ssh23:02:182
174149963,2cyclictest275-21systemd-journal19:37:562
174149963,2cyclictest16553-21ssh22:33:382
174149962,3cyclictest658-21snmpd23:42:532
174149962,3cyclictest658-21snmpd20:11:432
174149962,3cyclictest658-21snmpd19:48:282
174149962,3cyclictest658-21snmpd19:15:062
174149962,3cyclictest658-21snmpd00:31:032
174149962,3cyclictest658-21snmpd00:27:092
174149962,3cyclictest15479-21ls20:15:142
174149962,3cyclictest1-21systemd21:25:012
174149962,3cyclictest1-21systemd00:00:012
174149962,3cyclictest10911-21cat22:10:162
174149961,3cyclictest491-21systemd-logind23:19:262
174149961,3cyclictest275-21systemd-journal23:31:572
174149961,3cyclictest141rcu_preempt00:04:392
174149961,1cyclictest141rcu_preempt22:07:312
174149961,1cyclictest141rcu_preempt00:22:382
174149960,1cyclictest141rcu_preempt00:10:012
174149960,0cyclictest0-21swapper/223:26:492
174129963,2cyclictest6456-21grep21:05:141
174129963,2cyclictest28640-21df23:00:141
174129963,1cyclictest22-21ksoftirqd/119:30:211
174129962,3cyclictest658-21snmpd19:40:071
174129962,3cyclictest275-21systemd-journal21:02:001
174129962,3cyclictest22-21ksoftirqd/121:40:341
174129962,3cyclictest211rcuc/121:35:111
174129961,3cyclictest275-21systemd-journal00:37:441
174129961,1cyclictest141rcu_preempt23:12:371
174129961,1cyclictest141rcu_preempt20:20:121
174129961,1cyclictest141rcu_preempt20:20:121
174129960,6cyclictest0-21swapper/123:50:331
174129960,4cyclictest6762-21fschecks_time00:25:141
174129960,4cyclictest22-21ksoftirqd/123:20:121
174129960,4cyclictest22-21ksoftirqd/120:05:191
174129960,4cyclictest22-21ksoftirqd/119:20:141
174079963,2cyclictest7414-21sh22:47:180
174079963,2cyclictest658-21snmpd23:22:020
174079963,2cyclictest560-21gdbus00:40:000
174079963,2cyclictest504-21dbus-daemon21:40:270
174079963,2cyclictest4248-21ssh00:23:500
174079963,2cyclictest3985-21acpi23:05:120
174079963,2cyclictest28601-21ssh22:20:320
174079963,2cyclictest275-21systemd-journal20:45:470
174079963,2cyclictest275-21systemd-journal20:37:080
174079963,2cyclictest24874-21ssh22:57:490
174079963,2cyclictest20516-21awk23:15:130
174079963,2cyclictest14964-21sed23:50:210
174079963,2cyclictest0-21swapper/022:25:180
174079962,3cyclictest658-21snmpd22:35:420
174079962,3cyclictest658-21snmpd21:51:530
174079962,3cyclictest658-21snmpd21:30:250
174079962,3cyclictest658-21snmpd21:29:420
174079962,3cyclictest658-21snmpd20:34:590
174079962,3cyclictest658-21snmpd20:01:010
174079962,3cyclictest658-21snmpd19:35:430
174079962,3cyclictest658-21snmpd19:33:160
174079962,3cyclictest658-21snmpd19:11:300
174079962,3cyclictest658-21snmpd00:33:310
174079962,3cyclictest658-21snmpd00:16:120
174079962,3cyclictest658-21snmpd00:01:330
174079962,3cyclictest275-21systemd-journal20:24:300
174079962,3cyclictest275-21systemd-journal20:24:300
174079962,3cyclictest21783-21ls23:55:110
174079962,3cyclictest1-21systemd20:00:010
174079962,3cyclictest11747-21date22:10:200
174079962,1cyclictest0-21swapper/021:46:010
174079962,1cyclictest0-21swapper/000:05:160
174079961,4cyclictest504-11dbus-daemon20:58:160
174079961,3cyclictest275-21systemd-journal23:41:560
174179953,1cyclictest17598-21/usr/sbin/munin19:10:173
174179952,2cyclictest658-21snmpd20:15:173
174179952,2cyclictest6574-21cat21:05:153
174179952,2cyclictest6247-21ssh00:25:113
174179952,2cyclictest31903-21cat19:40:133
174179952,2cyclictest29540-21cut19:35:133
174179952,2cyclictest27629-21cut19:30:153
174179952,2cyclictest25860-21tr21:40:133
174179952,2cyclictest21984-21ssh00:15:013
174179951,3cyclictest1433-21/usr/sbin/munin19:45:123
174179950,4cyclictest31309-21/usr/sbin/munin20:50:143
174179950,4cyclictest19875-21chrt20:25:033
174179950,3cyclictest275-21systemd-journal20:05:143
174149954,1cyclictest28-21ksoftirqd/221:00:002
174149953,1cyclictest8991-21head20:00:142
174149953,1cyclictest658-21snmpd21:55:592
174149953,1cyclictest11058-21df_inode20:05:132
174149952,2cyclictest8415-21ssh21:10:012
174149952,2cyclictest7541-21cat19:55:192
174149952,2cyclictest658-21snmpd20:30:022
174149952,2cyclictest658-21snmpd20:20:022
174149952,2cyclictest658-21snmpd20:20:022
174149952,2cyclictest658-21snmpd19:50:102
174149952,2cyclictest658-21snmpd19:30:032
174149952,2cyclictest29645-21cut23:20:162
174149952,2cyclictest26851-21expr20:40:132
174149952,2cyclictest26437-21expr22:00:142
174149952,2cyclictest24044-21wc19:20:182
174149952,2cyclictest22011-21ssh00:15:022
174149952,2cyclictest20016-21cat20:25:132
174149952,2cyclictest19430-21apt-key22:55:002
174149952,2cyclictest17496-21ssh21:35:102
174149952,2cyclictest11789-21df_inode22:50:132
174149951,3cyclictest25328-21df19:25:132
174149951,3cyclictest22892-21cat00:35:132
174149951,3cyclictest19233-21sshd19:10:572
174149950,4cyclictest961-21cpuspeed_turbos21:25:132
174149950,4cyclictest29697-21cut20:45:172
174129952,1cyclictest22-21ksoftirqd/120:40:191
174129952,1cyclictest22-21ksoftirqd/120:30:061
174129952,1cyclictest141rcu_preempt20:10:181
174079953,1cyclictest7866-21diskmemload23:00:050
174079953,1cyclictest244402chrt19:22:020
174079952,2cyclictest658-21snmpd22:40:070
174079952,2cyclictest658-21snmpd22:00:140
174079952,2cyclictest658-21snmpd21:20:090
174079952,2cyclictest658-21snmpd21:05:030
174079952,2cyclictest658-21snmpd19:25:030
174079952,2cyclictest504-21dbus-daemon20:50:010
174079952,2cyclictest5022-21ssh23:45:090
174079952,2cyclictest3879-21cat21:00:130
174079952,2cyclictest31737-21wc19:40:130
174079952,2cyclictest20126-21expr20:25:130
174079952,2cyclictest1692-21cat19:45:130
174079952,2cyclictest14978-21expr00:10:160
174079952,2cyclictest12735-21ssh23:30:070
174079952,2cyclictest12-21ksoftirqd/023:35:120
174079951,3cyclictest3654-21/usr/sbin/munin19:50:170
174079951,3cyclictest2422-21/usr/sbin/munin22:05:140
174079951,3cyclictest15393-21expr20:15:130
174079951,3cyclictest13566-21cat20:10:130
174079950,3cyclictest275-21systemd-journal20:06:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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