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2026-07-17 - 08:10
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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 Fri Jul 17, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
318582298275,15sleep20-21swapper/219:05:542
319022282256,17sleep10-21swapper/119:06:291
321962259227,22sleep00-21swapper/019:09:590
320762253220,22sleep30-21swapper/319:08:283
304922640,0sleep30-21swapper/323:50:383
230542620,1sleep30-21swapper/300:05:473
23302600,0sleep30-21swapper/321:36:143
118712600,0sleep00-21swapper/019:35:120
215872590,0sleep30-21swapper/323:45:203
290912570,1sleep129070-21ssh23:30:221
135342570,0sleep00-21swapper/022:22:460
23622180,0sleep20-21swapper/223:53:572
288922170,0sleep30-21swapper/323:10:503
250292150,0sleep10-21swapper/123:28:281
42212140,0sleep20-21swapper/222:36:322
301702140,0sleep10-21swapper/122:52:221
3231399129,2cyclictest28-21ksoftirqd/219:20:022
127192120,0sleep30-21swapper/323:01:053
3231799119,1cyclictest34-21ksoftirqd/300:00:013
3231399119,2cyclictest28-21ksoftirqd/219:45:002
3231399118,2cyclictest28-21ksoftirqd/219:55:012
3231399118,2cyclictest28-21ksoftirqd/200:00:002
3231399109,1cyclictest28-21ksoftirqd/200:00:012
3231399108,1cyclictest28-21ksoftirqd/220:00:012
3231399108,1cyclictest28-21ksoftirqd/219:15:022
306392100,0sleep20-21swapper/221:15:032
9566290,0sleep30-21swapper/300:36:533
5574290,0sleep30-21swapper/323:35:433
3324290,3sleep012-21ksoftirqd/000:33:270
323139998,1cyclictest28-21ksoftirqd/220:30:002
323139998,1cyclictest28-21ksoftirqd/200:20:002
323139997,2cyclictest28-21ksoftirqd/200:40:012
323139997,1cyclictest28-21ksoftirqd/223:40:002
323139997,1cyclictest28-21ksoftirqd/221:05:012
323139997,1cyclictest28-21ksoftirqd/221:05:002
323139997,1cyclictest28-21ksoftirqd/221:00:012
24767290,0sleep20-21swapper/222:49:342
17907290,0sleep20-21swapper/221:26:162
5586280,0sleep20-21swapper/219:20:122
323139987,1cyclictest28-21ksoftirqd/223:50:012
323139987,1cyclictest28-21ksoftirqd/223:20:012
323139987,1cyclictest28-21ksoftirqd/222:55:022
323139987,1cyclictest28-21ksoftirqd/222:35:002
323139983,3cyclictest275-21systemd-journal23:30:112
323089984,3cyclictest504-21dbus-daemon19:45:011
323059987,1cyclictest12-21ksoftirqd/000:00:000
323059980,5cyclictest27492-21awk20:10:000
5853270,0sleep00-21swapper/023:35:570
5601270,0sleep00-21swapper/022:57:000
323179974,2cyclictest31341-21dump-pmu-power21:34:593
323179974,2cyclictest275-21systemd-journal21:44:553
323179974,2cyclictest275-21systemd-journal21:03:123
323179974,2cyclictest275-21systemd-journal21:03:123
323179974,2cyclictest275-21systemd-journal00:22:373
323179973,3cyclictest658-21snmpd22:42:253
323179973,3cyclictest658-21snmpd22:04:253
323179973,3cyclictest658-21snmpd20:37:423
323179973,3cyclictest2954-21ntpq20:25:173
323179973,3cyclictest275-21systemd-journal22:05:503
323179973,3cyclictest11316-21diskstats20:45:133
323179973,2cyclictest275-21systemd-journal19:20:023
323179973,1cyclictest0-21swapper/322:24:313
323179971,5cyclictest10143-21apt-get23:20:023
323139976,1cyclictest671-21ntpd00:29:402
323139976,1cyclictest28-21ksoftirqd/221:55:012
323139976,1cyclictest28-21ksoftirqd/221:50:012
323139976,1cyclictest28-21ksoftirqd/219:35:002
323139976,1cyclictest28-21ksoftirqd/219:30:002
323139976,1cyclictest271rcuc/223:00:142
323139973,3cyclictest275-21systemd-journal21:56:402
323139973,3cyclictest275-21systemd-journal20:52:422
323139973,3cyclictest275-21systemd-journal20:45:002
323139972,5cyclictest141rcu_preempt22:44:032
323139972,1cyclictest141rcu_preempt20:35:112
323139971,4cyclictest141rcu_preempt21:33:022
323139971,3cyclictest5355-21cron00:35:002
323139971,2cyclictest28-21ksoftirqd/219:45:012
323139970,7cyclictest0-21swapper/200:12:422
323139970,6cyclictest0-21swapper/223:10:172
323089974,2cyclictest501-21in:imuxsock22:17:291
323089973,3cyclictest658-21snmpd22:37:261
323089973,3cyclictest275-21systemd-journal19:16:481
323089973,1cyclictest0-21swapper/123:47:281
323089972,3cyclictest20934-21apt-get00:25:001
323089971,3cyclictest25263-21apt20:05:001
323059976,1cyclictest12-21ksoftirqd/022:30:010
323059976,1cyclictest12-21ksoftirqd/021:15:010
323059976,1cyclictest12-21ksoftirqd/020:20:010
323059975,1cyclictest12-21ksoftirqd/020:00:000
323059973,3cyclictest658-21snmpd21:58:540
323059973,3cyclictest658-21snmpd21:16:020
323059973,3cyclictest275-21systemd-journal21:36:590
323059972,2cyclictest29117-21rm00:29:430
323179966,0cyclictest0-21swapper/320:32:223
323179965,1cyclictest34-21ksoftirqd/321:29:593
323179964,1cyclictest30531-21sed20:15:163
323179963,2cyclictest7748-21ssh23:56:453
323179963,2cyclictest6576-21head00:15:223
323179963,2cyclictest4099-21ssh22:16:493
323179963,2cyclictest28889-21ssh21:52:463
323179963,2cyclictest28387-21ssh22:31:333
323179963,2cyclictest28298-21ssh22:50:543
323179963,2cyclictest275-21systemd-journal20:42:203
323179963,2cyclictest25668-21chrt21:11:243
323179963,2cyclictest23558-21rm22:48:363
323179963,2cyclictest23515-21ssh22:29:083
323179963,2cyclictest23432-21ssh23:08:003
323179963,2cyclictest16137-21date19:45:003
323179963,2cyclictest0-21swapper/323:30:583
323179963,1cyclictest0-21swapper/323:40:303
323179962,3cyclictest658-21snmpd23:15:023
323179962,3cyclictest658-21snmpd22:10:493
323179962,3cyclictest658-21snmpd21:24:013
323179962,3cyclictest658-21snmpd21:08:113
323179962,3cyclictest658-21snmpd19:56:393
323179962,3cyclictest658-21snmpd19:48:203
323179962,3cyclictest504-21dbus-daemon19:40:003
323179962,3cyclictest29745-21cat00:10:163
323179962,3cyclictest2342-21cat22:35:203
323179962,2cyclictest275-21systemd-journal22:57:153
323179960,6cyclictest0-21swapper/300:32:063
323179960,5cyclictest7543-21expr19:25:113
323179960,5cyclictest15848-21/usr/sbin/munin21:45:163
323179960,2cyclictest22779-21ntp_states00:25:173
323179960,0cyclictest0-21swapper/323:27:523
323179960,0cyclictest0-21swapper/319:10:203
323139966,0cyclictest0-21swapper/222:16:522
323139964,2cyclictest271rcuc/222:05:142
323139964,1cyclictest28-21ksoftirqd/220:50:012
323139963,2cyclictest658-21snmpd21:44:532
323139963,2cyclictest504-21dbus-daemon22:25:042
323139963,2cyclictest31513-21users20:15:222
323139963,2cyclictest27221-21sh22:11:012
323139963,2cyclictest26204-21ssh00:08:122
323139963,2cyclictest22624-21sh23:07:232
323139963,2cyclictest14243-21ssh00:20:182
323139963,0cyclictest28-21ksoftirqd/221:10:342
323139962,3cyclictest658-21snmpd23:40:122
323139962,3cyclictest658-21snmpd23:25:172
323139962,3cyclictest658-21snmpd21:38:582
323139962,3cyclictest658-21snmpd20:20:272
323139962,1cyclictest0-21swapper/222:55:192
323139961,3cyclictest275-21systemd-journal22:21:442
323089964,1cyclictest501-21in:imuxsock22:00:001
323089963,2cyclictest8948-21ssh21:40:181
323089963,2cyclictest8171-21cat22:00:121
323089963,2cyclictest658-21snmpd23:13:281
323089963,2cyclictest658-21snmpd21:00:091
323089963,2cyclictest658-21snmpd21:00:091
323089963,2cyclictest658-21snmpd20:51:581
323089963,2cyclictest658-21snmpd00:30:221
323089963,2cyclictest6245-21diskstats00:35:131
323089963,2cyclictest3937-21tail23:35:151
323089963,2cyclictest275-21systemd-journal21:11:571
323089963,2cyclictest275-21systemd-journal20:38:021
323089963,2cyclictest275-21systemd-journal20:20:571
323089963,2cyclictest275-21systemd-journal19:30:241
323089963,2cyclictest2476-21cut20:25:141
323089963,2cyclictest20453-21ssh23:05:401
323089963,2cyclictest18311-21cat22:45:181
323089963,2cyclictest16678-21sh22:44:461
323089963,2cyclictest13061-21sensors_temp19:35:191
323089963,1cyclictest0-21swapper/123:21:091
323089962,3cyclictest7397-21sed21:20:141
323089962,3cyclictest658-21snmpd23:42:301
323089962,3cyclictest658-21snmpd22:22:181
323089962,3cyclictest658-21snmpd21:48:241
323089962,3cyclictest658-21snmpd21:05:281
323089962,3cyclictest658-21snmpd20:40:401
323089962,3cyclictest658-21snmpd19:45:091
323089962,3cyclictest658-21snmpd19:24:431
323089962,3cyclictest658-21snmpd00:13:451
323089962,3cyclictest658-21snmpd00:06:241
323089962,3cyclictest32568-21cat21:35:151
323089962,3cyclictest29498-21pluginstate23:50:181
323089962,3cyclictest275-21systemd-journal21:27:471
323089962,3cyclictest25613-21cut22:30:141
323089962,3cyclictest22445-21cat00:25:151
323089962,3cyclictest17597-21processes22:05:191
323089962,3cyclictest0-21swapper/121:31:291
323089962,1cyclictest0-21swapper/123:00:421
323089962,1cyclictest0-21swapper/121:19:241
323089960,6cyclictest0-21swapper/122:13:061
323089960,3cyclictest2075-21grep19:15:021
323089960,3cyclictest12896-21grep20:50:011
323089960,0cyclictest0-21swapper/123:58:061
323059963,2cyclictest32162-21ssh23:51:550
323059963,2cyclictest21864-21sshd21:07:210
323059963,2cyclictest19286-21timerwakeupswit21:00:190
323059963,2cyclictest19286-21timerwakeupswit21:00:190
323059963,2cyclictest1423-21chrt20:21:080
323059963,1cyclictest0-21swapper/021:54:590
323059963,1cyclictest0-21swapper/021:31:100
323059962,3cyclictest658-21snmpd23:57:560
323059962,3cyclictest658-21snmpd23:45:260
323059962,3cyclictest658-21snmpd23:05:490
323059962,3cyclictest658-21snmpd22:51:370
323059962,3cyclictest658-21snmpd22:06:480
323059962,3cyclictest658-21snmpd21:47:080
323059962,3cyclictest658-21snmpd21:25:590
323059962,3cyclictest658-21snmpd21:20:020
323059962,3cyclictest658-21snmpd20:55:090
323059962,3cyclictest658-21snmpd20:31:550
323059962,3cyclictest658-21snmpd19:50:470
323059962,3cyclictest658-21snmpd19:28:110
323059962,3cyclictest658-21snmpd19:21:340
323059962,3cyclictest658-21snmpd19:12:430
323059962,3cyclictest658-21snmpd00:07:000
323059962,3cyclictest560-21gdbus20:55:000
323059962,3cyclictest29154-21sed23:30:220
323059962,3cyclictest275-21systemd-journal23:20:020
323059962,3cyclictest275-21systemd-journal20:10:300
323059962,3cyclictest25242-21sed22:10:140
323059962,3cyclictest2518-21sed19:15:010
323059962,3cyclictest1971-21cat22:15:220
323059961,3cyclictest275-21systemd-journal23:40:120
323059961,3cyclictest1941-21basename23:15:010
323059960,6cyclictest0-21swapper/023:25:120
323059960,6cyclictest0-21swapper/023:00:020
323059960,6cyclictest0-21swapper/020:47:140
323059960,4cyclictest275-21systemd-journal22:02:080
323059960,1cyclictest0-21swapper/000:20:480
323059960,0cyclictest0-21swapper/000:15:140
323179953,1cyclictest0-21swapper/321:15:103
323179952,2cyclictest658-21snmpd21:55:043
323179952,2cyclictest5566-21df19:20:123
323179952,2cyclictest32510-21expr20:20:133
323179952,2cyclictest28087-21expr20:10:133
323179952,2cyclictest25675-21tr20:05:143
323179952,2cyclictest23511-21cstates20:00:133
323179952,2cyclictest10287-21if_enp4s019:30:143
323179951,3cyclictest19169-21expr19:50:123
323179951,3cyclictest16461-21memory20:55:153
323179950,1cyclictest0-21swapper/320:50:113
323139955,0cyclictest0-21swapper/220:02:312
323139952,2cyclictest7883-21ssh22:00:042
323139952,2cyclictest5973-21sshd20:32:202
323139952,2cyclictest20627-21tune2fs21:05:142
323139951,3cyclictest658-21snmpd20:07:202
323139951,3cyclictest658-21snmpd19:36:492
323139951,1cyclictest141rcu_preempt21:20:192
323139950,4cyclictest10955-21ssh23:20:102
323139950,3cyclictest275-21systemd-journal20:13:302
323089953,1cyclictest663-21runrttasks20:05:171
323089953,1cyclictest5431-21grep00:15:141
323089953,1cyclictest18814-21chrt19:50:101
323089952,3cyclictest30942-21kworker/1:219:55:301
323089952,2cyclictest658-21snmpd20:10:111
323089952,2cyclictest504-21dbus-daemon00:00:001
323089952,2cyclictest3134-21cat23:15:151
323089952,2cyclictest16734-21ssh22:25:051
323089951,3cyclictest658-21snmpd22:55:041
323089951,3cyclictest658-21snmpd19:25:071
323089951,3cyclictest4230-21find20:30:131
323089951,3cyclictest30025-21cpuspeed20:15:141
323089951,3cyclictest16054-21/usr/sbin/munin20:55:121
323059952,2cyclictest8033-21cat21:40:120
323059952,2cyclictest658-21snmpd19:40:030
323059952,2cyclictest30947-21ssh00:10:310
323059952,2cyclictest2973-21ssh22:35:330
323059952,2cyclictest2598-21tail20:25:150
323059952,2cyclictest25076-21cat22:30:120
323059952,2cyclictest23957-21if_enp4s020:00:140
323059952,2cyclictest18122-21ssh22:45:160
323059952,2cyclictest17132-21tr19:45:160
323059952,1cyclictest0-21swapper/022:40:050
323059951,3cyclictest6742-21cat20:35:140
323059951,3cyclictest658-21snmpd23:15:310
323059950,3cyclictest6833-21ssh00:35:160
323059950,3cyclictest275-21systemd-journal20:40:060
323059950,3cyclictest275-21systemd-journal19:31:150
24687250,0sleep10-21swapper/121:50:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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