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2026-04-15 - 05:07
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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 Wed Apr 15, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279022287259,19sleep10-21swapper/119:08:091
279452281256,16sleep20-21swapper/219:08:422
279912272241,20sleep00-21swapper/019:09:170
278482262235,18sleep30-21swapper/319:07:273
265612570,0sleep122-21ksoftirqd/121:54:181
260052560,0sleep00-21swapper/023:12:130
189472560,0sleep30-21swapper/322:48:343
53652550,0sleep10-21swapper/100:18:571
137802550,0sleep00-21swapper/019:45:190
22112190,0sleep30-21swapper/300:36:253
79102180,0sleep00-21swapper/021:42:270
23492180,0sleep30-21swapper/322:57:513
210582180,0sleep20-21swapper/221:50:192
267422160,0sleep30-21swapper/323:12:483
192922160,0sleep019291-21rm21:50:010
146092150,0sleep30-21swapper/300:04:583
139152150,0sleep30-21swapper/322:05:333
28158991211,1cyclictest22-21ksoftirqd/121:25:011
28158991211,1cyclictest22-21ksoftirqd/119:15:011
28158991210,2cyclictest22-21ksoftirqd/123:55:001
28158991210,2cyclictest22-21ksoftirqd/123:00:001
2815899118,2cyclictest22-21ksoftirqd/121:40:001
28158991110,1cyclictest22-21ksoftirqd/123:45:001
28158991110,1cyclictest22-21ksoftirqd/119:25:021
28158991110,1cyclictest22-21ksoftirqd/119:15:011
45942100,0chrt0-21swapper/200:38:202
2815899109,1cyclictest22-21ksoftirqd/121:00:001
2815899109,1cyclictest22-21ksoftirqd/120:40:011
2815899108,2cyclictest22-21ksoftirqd/121:30:011
2815899107,2cyclictest22-21ksoftirqd/122:20:011
2815599107,2cyclictest275-21systemd-journal19:25:570
32069290,0sleep20-21swapper/200:15:142
281589998,1cyclictest22-21ksoftirqd/123:55:011
281589998,1cyclictest22-21ksoftirqd/123:30:011
281589998,1cyclictest22-21ksoftirqd/120:45:011
281589998,1cyclictest22-21ksoftirqd/120:10:011
281589997,2cyclictest22-21ksoftirqd/123:30:121
281589997,2cyclictest22-21ksoftirqd/121:35:011
281589993,3cyclictest21114-21ntpq22:10:151
281669984,3cyclictest275-21systemd-journal00:15:003
281639987,1cyclictest18640-21diskmemload22:36:142
281639986,2cyclictest28-21ksoftirqd/221:00:002
281589987,1cyclictest22-21ksoftirqd/120:00:011
281589987,1cyclictest22-21ksoftirqd/120:00:011
281589987,1cyclictest22-21ksoftirqd/119:50:011
281589987,1cyclictest22-21ksoftirqd/119:30:011
281589986,2cyclictest22-21ksoftirqd/122:00:011
281589986,2cyclictest22-21ksoftirqd/121:20:001
281589986,2cyclictest22-21ksoftirqd/119:55:011
281589985,2cyclictest22-21ksoftirqd/121:05:001
281589984,3cyclictest275-21systemd-journal23:20:011
281589983,3cyclictest141rcu_preempt00:31:001
281589982,4cyclictest22-21ksoftirqd/100:00:061
281589981,5cyclictest22-21ksoftirqd/123:13:111
281589981,4cyclictest275-21systemd-journal00:10:001
281589981,3cyclictest22-21ksoftirqd/122:34:351
281589980,5cyclictest22094-21munin-run23:50:001
281559982,3cyclictest6753-21grep00:40:000
27485280,0sleep00-21swapper/021:35:060
281669974,2cyclictest50850irq/136-enp4s0-21:25:003
281669974,2cyclictest501-21in:imuxsock20:35:443
281669973,3cyclictest658-21snmpd21:27:013
281669973,3cyclictest658-21snmpd20:32:063
281669973,3cyclictest30120-21ntpq22:35:163
281669972,4cyclictest22188-21gltestperf22:50:153
281669972,3cyclictest275-21systemd-journal22:30:563
281669972,3cyclictest275-21systemd-journal22:21:143
281669970,7cyclictest0-21swapper/323:35:593
281669970,1cyclictest7833-21ssh23:00:443
281639975,1cyclictest271rcuc/222:15:012
281639972,4cyclictest24767-21ssh22:51:272
281639972,3cyclictest19633-21awk22:10:012
281639970,4cyclictest2473-21dump-pmu-power20:35:012
281589976,1cyclictest22-21ksoftirqd/120:15:011
281589976,1cyclictest22-21ksoftirqd/119:45:011
281589976,1cyclictest22-21ksoftirqd/100:30:011
281589976,1cyclictest211rcuc/121:45:011
281589974,2cyclictest22-21ksoftirqd/120:50:011
281589974,1cyclictest22-21ksoftirqd/100:35:141
281589973,3cyclictest22-21ksoftirqd/122:25:131
281589973,1cyclictest141rcu_preempt23:20:161
281589973,1cyclictest141rcu_preempt23:00:141
281589972,1cyclictest22-21ksoftirqd/122:38:431
281589972,1cyclictest22-21ksoftirqd/122:20:071
281589971,4cyclictest211rcuc/122:02:311
281589971,3cyclictest5729-21munin-run23:40:001
281589971,3cyclictest22-21ksoftirqd/123:07:121
281589971,3cyclictest22-21ksoftirqd/122:40:131
281589970,4cyclictest22-21ksoftirqd/122:05:141
281589970,4cyclictest13106-21ssh22:45:131
281559973,3cyclictest4676-21ssh00:18:250
281559973,3cyclictest14677-21dump-pmu-power00:05:000
281559973,1cyclictest12307-21munin-run19:45:010
281559970,6cyclictest28752-21df19:10:130
22408270,0sleep30-21swapper/300:29:363
30528260,0sleep00-21swapper/023:35:110
281669966,0cyclictest0-21swapper/300:21:343
281669966,0cyclictest0-21swapper/300:21:343
281669964,1cyclictest1649-21gltestperf19:20:153
281669963,2cyclictest658-21snmpd20:10:033
281669963,2cyclictest5628-21sh22:00:273
281669963,2cyclictest501-21in:imuxsock19:39:103
281669963,2cyclictest31866-21expr00:15:123
281669963,2cyclictest275-21systemd-journal21:45:123
281669963,2cyclictest275-21systemd-journal21:41:083
281669963,2cyclictest275-21systemd-journal19:50:393
281669963,2cyclictest13695-21awk20:55:203
281669963,1cyclictest0-21swapper/323:46:363
281669963,1cyclictest0-21swapper/322:42:363
281669962,3cyclictest658-21snmpd23:44:243
281669962,3cyclictest658-21snmpd23:28:023
281669962,3cyclictest658-21snmpd21:03:193
281669962,3cyclictest658-21snmpd20:28:393
281669962,3cyclictest658-21snmpd20:23:573
281669962,3cyclictest658-21snmpd20:07:363
281669962,3cyclictest658-21snmpd19:42:323
281669962,3cyclictest658-21snmpd19:11:073
281669962,3cyclictest658-21snmpd00:32:553
281669962,3cyclictest31809-21cat23:55:163
281669962,3cyclictest30896-21latency23:15:173
281669962,3cyclictest275-21systemd-journal23:50:123
281669962,3cyclictest275-21systemd-journal23:30:113
281669962,3cyclictest21980-21sh21:11:133
281669962,3cyclictest19961-21df_inode21:30:143
281669962,3cyclictest0-21swapper/321:50:543
281669961,3cyclictest31007-21rm21:56:223
281669961,3cyclictest23777-21rm22:11:513
281669961,3cyclictest12339-21rm23:24:033
281669960,6cyclictest0-21swapper/321:18:003
281669960,6cyclictest0-21swapper/320:40:143
281669960,6cyclictest0-21swapper/300:06:333
281669960,5cyclictest27792-21apt-get22:15:023
281669960,5cyclictest27640-21sshd21:35:113
281639966,0cyclictest0-21swapper/221:25:372
281639966,0cyclictest0-21swapper/200:08:442
281639964,1cyclictest7184-21tr23:40:162
281639964,1cyclictest28605-21sed21:55:152
281639963,2cyclictest504-21dbus-daemon23:57:322
281639963,2cyclictest360-21sshd19:15:352
281639963,2cyclictest3513-21ssh22:00:012
281639963,2cyclictest29862-21sh21:35:432
281639963,2cyclictest28766-21diskstats19:10:132
281639963,2cyclictest28231-21sh23:53:252
281639963,2cyclictest28124-21ssh22:34:382
281639963,2cyclictest27191-21ssh00:11:592
281639963,2cyclictest23970-21sshd20:10:092
281639963,2cyclictest18697-21ssh22:28:432
281639963,2cyclictest1-21systemd21:40:182
281639963,1cyclictest0-21swapper/223:16:292
281639962,3cyclictest658-21snmpd23:32:232
281639962,3cyclictest658-21snmpd23:10:262
281639962,3cyclictest658-21snmpd23:00:282
281639962,3cyclictest658-21snmpd22:15:072
281639962,3cyclictest658-21snmpd20:50:522
281639962,3cyclictest658-21snmpd20:08:302
281639962,3cyclictest658-21snmpd00:32:402
281639962,3cyclictest504-21dbus-daemon20:40:022
281639962,3cyclictest275-21systemd-journal00:01:182
281639962,3cyclictest19411-21cat21:10:132
281639962,3cyclictest18148-21which19:55:182
281639962,3cyclictest10062-21run-parts19:40:012
281639962,1cyclictest0-21swapper/223:25:582
281639962,1cyclictest0-21swapper/222:55:042
281639962,1cyclictest0-21swapper/221:15:282
281639962,1cyclictest0-21swapper/200:20:152
281639962,1cyclictest0-21swapper/200:20:152
281639961,3cyclictest20802-21grep22:50:002
281639960,6cyclictest0-21swapper/223:35:332
281639960,6cyclictest0-21swapper/223:05:422
281639960,0cyclictest0-21swapper/222:20:432
281589963,2cyclictest25576-21sh00:10:441
281589963,1cyclictest22-21ksoftirqd/120:15:151
281589963,0cyclictest141rcu_preempt20:35:011
281589962,3cyclictest7114-21cat19:30:201
281589960,4cyclictest22-21ksoftirqd/100:20:201
281589960,4cyclictest22-21ksoftirqd/100:20:201
281589960,4cyclictest11634-21apt-get21:45:131
281589960,4cyclictest0-21swapper/121:10:121
281589960,4cyclictest0-21swapper/120:20:151
281589960,4cyclictest0-21swapper/119:35:151
281589960,1cyclictest20792-21apt-get22:50:011
281559966,0cyclictest0-21swapper/023:05:370
281559966,0cyclictest0-21swapper/022:30:360
281559964,1cyclictest22731-21ntp_states20:05:170
281559963,2cyclictest674-21lldpd23:03:440
281559963,2cyclictest658-21snmpd23:57:060
281559963,2cyclictest658-21snmpd23:31:200
281559963,2cyclictest658-21snmpd22:22:370
281559963,2cyclictest658-21snmpd20:48:280
281559963,2cyclictest658-21snmpd00:20:360
281559963,2cyclictest658-21snmpd00:20:360
281559963,2cyclictest560-21gdbus00:06:420
281559963,2cyclictest5297-21sshd21:20:410
281559963,2cyclictest504-21dbus-daemon20:27:490
281559963,2cyclictest31789-21sh22:16:290
281559963,2cyclictest27362-21systemctl20:15:190
281559963,2cyclictest25834-21ssh22:13:290
281559963,2cyclictest25325-21sshd23:51:080
281559963,2cyclictest25246-21sh22:51:500
281559963,2cyclictest18455-21ssh22:48:110
281559963,2cyclictest16847-21rm21:28:180
281559962,3cyclictest7808-21cron19:35:010
281559962,3cyclictest658-21snmpd23:41:560
281559962,3cyclictest658-21snmpd23:29:110
281559962,3cyclictest658-21snmpd22:40:520
281559962,3cyclictest658-21snmpd22:37:580
281559962,3cyclictest658-21snmpd22:06:180
281559962,3cyclictest658-21snmpd21:08:070
281559962,3cyclictest658-21snmpd19:57:440
281559962,3cyclictest658-21snmpd19:23:290
281559962,3cyclictest658-21snmpd00:25:390
281559962,3cyclictest6228-21ls23:20:130
281559962,3cyclictest5527-21cat20:40:140
281559962,3cyclictest4379-21expr22:00:150
281559962,3cyclictest30574-21cat22:55:150
281559962,3cyclictest25358-21grep20:10:200
281559962,3cyclictest24098-21cat00:10:150
281559962,3cyclictest21100-21users20:00:200
281559962,3cyclictest13727-21sed22:25:170
281559962,1cyclictest0-21swapper/021:59:140
281559962,1cyclictest0-21swapper/021:50:160
281559962,1cyclictest0-21swapper/021:19:560
281559960,6cyclictest0-21swapper/020:30:400
281559960,5cyclictest786-21ls19:20:000
281559960,5cyclictest19564-21ssh23:48:010
281559960,0cyclictest0-21swapper/021:10:520
17471260,0sleep20-21swapper/223:46:232
281669953,1cyclictest663-21runrttasks20:50:123
281669953,1cyclictest31294-21cpuspeed19:15:143
281669952,2cyclictest6138-21expr19:30:133
281669952,2cyclictest17748-21processes21:05:193
281669952,2cyclictest13434-21needreboot19:45:183
281669951,3cyclictest658-21snmpd23:05:023
281669951,3cyclictest658-21snmpd19:55:293
281669951,3cyclictest26195-21/usr/sbin/munin20:15:133
281669950,4cyclictest0-21swapper/319:25:123
281669950,2cyclictest13234-21/usr/sbin/munin22:25:143
281669950,1cyclictest7215-21apt-get20:45:023
281639955,0cyclictest0-21swapper/221:30:042
281639953,1cyclictest5614-21sh23:20:022
281639953,1cyclictest48872sleep222:40:132
281639953,1cyclictest31847-21basename20:25:192
281639953,1cyclictest0-21swapper/220:00:012
281639952,2cyclictest8340-21expr20:45:162
281639952,2cyclictest658-21snmpd20:40:092
281639952,2cyclictest658-21snmpd19:30:122
281639952,2cyclictest4227-21ntpq19:25:172
281639952,2cyclictest3024-21ssh21:20:082
281639952,2cyclictest26434-21expr20:15:142
281639952,2cyclictest18402-21chrt21:07:172
281639952,2cyclictest15992-21smart_sda19:50:182
281639952,2cyclictest15260-21ssh00:25:102
281639952,2cyclictest14676-21expr21:00:132
281639952,2cyclictest13494-21ntp_kernel_pll_19:45:172
281639952,2cyclictest11765-21sort21:45:132
281639951,3cyclictest658-21snmpd20:20:122
281639951,3cyclictest658-21snmpd19:40:022
281639950,2cyclictest1039-21/usr/sbin/munin19:20:142
281589952,2cyclictest10361-21expr20:50:131
281589952,1cyclictest22-21ksoftirqd/120:25:141
281589951,3cyclictest17179-21grep21:05:151
281559953,1cyclictest3099-21df_inode20:35:140
281559953,1cyclictest18640-21diskmemload21:30:130
281559953,1cyclictest12536-21cstates20:55:130
281559952,2cyclictest9218-21gunzip19:35:190
281559952,2cyclictest658-21snmpd21:00:040
281559952,2cyclictest28875-21fschecks_count20:20:140
281559952,2cyclictest23161-21sh00:30:010
281559952,1cyclictest0-21swapper/023:15:040
281559951,3cyclictest658-21snmpd20:51:280
281559951,3cyclictest658-21snmpd19:50:050
281669940,3cyclictest19408-21apt-config20:00:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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