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2026-08-08 - 07:47
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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 Sat Aug 08, 2026 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313962286255,20sleep20-21swapper/219:09:532
310322280253,18sleep10-21swapper/119:05:251
294392275246,19sleep00-21swapper/019:05:080
311782265234,21sleep30-21swapper/319:07:043
191142700,0sleep20-21swapper/223:05:162
173962650,0sleep10-21swapper/100:22:351
48422640,0sleep10-21swapper/122:37:111
315652600,0sleep00-21swapper/000:11:170
62642580,1sleep06265-21pmu-power00:35:190
298162580,0sleep00-21swapper/021:15:020
292132580,0sleep10-21swapper/100:10:141
242572570,3sleep012-21ksoftirqd/000:26:290
215462540,0sleep10-21swapper/122:08:211
317862480,0sleep10-21swapper/123:51:561
237292180,0sleep30-21swapper/300:06:343
213852180,1sleep30-21swapper/321:29:343
228572170,0sleep10-21swapper/121:30:111
111472160,0sleep20-21swapper/222:40:412
212642150,0sleep00-21swapper/023:45:220
3150899107,2cyclictest15032-21latency21:25:152
315089997,1cyclictest0-21swapper/221:50:172
315089993,4cyclictest27517-21dump-pmu-power23:50:002
315119984,3cyclictest275-21systemd-journal22:05:123
315119981,1cyclictest141rcu_preempt20:30:123
315089986,1cyclictest28-21ksoftirqd/223:15:012
315039980,5cyclictest12294-21systemctl00:20:001
314999985,2cyclictest12-21ksoftirqd/020:10:010
24065280,0sleep30-21swapper/322:49:033
1934280,0sleep20-21swapper/200:32:572
315119976,1cyclictest34-21ksoftirqd/322:55:013
315119976,1cyclictest34-21ksoftirqd/300:20:003
315119973,3cyclictest504-21dbus-daemon21:00:193
315119973,3cyclictest3960-21cat23:35:153
315119973,3cyclictest275-21systemd-journal21:09:123
315119972,3cyclictest275-21systemd-journal19:44:563
315119972,3cyclictest275-21systemd-journal19:20:003
315089976,1cyclictest13096-21ssh23:20:442
315089973,3cyclictest658-21snmpd00:22:442
315039976,1cyclictest18406-21runrttasks22:25:221
315039974,2cyclictest658-21snmpd23:17:371
315039973,4cyclictest8217-21kworker/1:122:45:111
315039973,4cyclictest8217-21kworker/1:122:44:021
315039971,4cyclictest501-21in:imuxsock00:05:001
315039970,6cyclictest13076-21grep19:40:011
315039970,4cyclictest17700-21basename23:05:011
314999976,1cyclictest12-21ksoftirqd/019:30:000
26167270,0sleep00-21swapper/022:10:320
23687270,0sleep20-21swapper/200:26:042
23107270,0sleep00-21swapper/022:29:020
13015270,0sleep20-21swapper/222:22:362
315119966,0cyclictest0-21swapper/322:36:523
315119966,0cyclictest0-21swapper/300:30:403
315119964,1cyclictest21949-21cron20:00:013
315119963,2cyclictest658-21snmpd22:00:463
315119963,2cyclictest6351-21ssh23:55:573
315119963,2cyclictest6193-21ntp_states00:35:193
315119963,2cyclictest3485-21sh00:14:373
315119963,2cyclictest29585-21diskstats20:15:153
315119963,2cyclictest275-21systemd-journal21:46:503
315119963,2cyclictest21272-21cat00:25:113
315119963,2cyclictest19434-21sh22:26:113
315119963,2cyclictest16607-21rm00:02:283
315119963,2cyclictest11847-21cat20:45:193
315119963,1cyclictest0-21swapper/323:05:243
315119962,3cyclictest8604-21cat20:40:143
315119962,3cyclictest7805-21tr19:25:193
315119962,3cyclictest6679-21cat21:20:153
315119962,3cyclictest6606-21apt-get21:40:113
315119962,3cyclictest658-21snmpd23:53:203
315119962,3cyclictest658-21snmpd23:01:393
315119962,3cyclictest658-21snmpd22:50:333
315119962,3cyclictest658-21snmpd22:50:333
315119962,3cyclictest658-21snmpd21:55:553
315119962,3cyclictest658-21snmpd21:54:583
315119962,3cyclictest658-21snmpd21:15:353
315119962,3cyclictest658-21snmpd20:52:193
315119962,3cyclictest658-21snmpd20:21:403
315119962,3cyclictest658-21snmpd19:23:183
315119962,3cyclictest6029-21expr20:35:133
315119962,3cyclictest32439-21find22:15:133
315119962,3cyclictest25921-21sshd21:12:113
315119962,3cyclictest2120-21uname20:25:173
315119962,3cyclictest19785-21cat23:25:133
315119962,1cyclictest0-21swapper/323:40:273
315119961,4cyclictest20821-21ntpq23:45:203
315119960,6cyclictest0-21swapper/323:12:363
315119960,6cyclictest0-21swapper/320:00:223
315119960,6cyclictest0-21swapper/300:22:073
315119960,5cyclictest30757-21/usr/sbin/munin21:35:123
315119960,5cyclictest275-21systemd-journal19:40:003
315119960,5cyclictest24838-21diskstats20:05:143
315119960,2cyclictest275-21systemd-journal19:31:293
315119960,0cyclictest0-21swapper/323:17:453
315089966,0cyclictest0-21swapper/221:20:412
315089966,0cyclictest0-21swapper/221:15:022
315089963,2cyclictest6671-21timerwakeupswit00:35:212
315089963,2cyclictest658-21snmpd23:18:192
315089963,2cyclictest658-21snmpd22:00:412
315089963,2cyclictest6074-21ssh22:57:272
315089963,2cyclictest26929-21ssh21:32:262
315089963,2cyclictest21210-21ssh22:27:332
315089963,2cyclictest19902-21cron00:05:002
315089962,3cyclictest7660-21idleruntime-cro20:40:012
315089962,3cyclictest658-21snmpd22:17:142
315089962,3cyclictest658-21snmpd22:14:412
315089962,3cyclictest658-21snmpd22:07:322
315089962,3cyclictest658-21snmpd21:48:252
315089962,3cyclictest658-21snmpd20:16:372
315089962,3cyclictest658-21snmpd19:59:162
315089962,3cyclictest658-21snmpd19:49:032
315089962,3cyclictest658-21snmpd19:25:532
315089962,3cyclictest658-21snmpd00:19:292
315089962,3cyclictest29078-21sed23:50:162
315089962,3cyclictest28826-11brltty21:05:572
315089962,3cyclictest275-21systemd-journal23:01:152
315089962,3cyclictest275-21systemd-journal20:03:112
315089962,3cyclictest21110-21cat00:05:142
315089962,3cyclictest15164-21expr20:55:132
315089962,3cyclictest15164-21expr20:55:132
315089962,3cyclictest14618-21cat19:40:172
315089962,2cyclictest275-21systemd-journal20:25:112
315089962,1cyclictest0-21swapper/223:42:262
315089962,1cyclictest0-21swapper/222:52:512
315089962,1cyclictest0-21swapper/222:52:512
315089962,1cyclictest0-21swapper/221:40:112
315089960,6cyclictest0-21swapper/223:29:382
315089960,6cyclictest0-21swapper/221:56:402
315089960,5cyclictest5352-21ntpq19:20:162
315089960,3cyclictest663-21runrttasks23:36:152
315039966,0cyclictest0-21swapper/123:46:041
315039966,0cyclictest0-21swapper/122:55:411
315039966,0cyclictest0-21swapper/122:20:401
315039966,0cyclictest0-21swapper/122:17:331
315039963,3cyclictest8217-21kworker/1:123:35:231
315039963,3cyclictest8217-21kworker/1:123:05:191
315039963,3cyclictest8217-21kworker/1:121:46:201
315039963,3cyclictest8217-21kworker/1:120:00:111
315039963,3cyclictest8217-21kworker/1:119:30:111
315039963,3cyclictest8217-21kworker/1:100:35:151
315039963,3cyclictest8217-21kworker/1:100:05:551
315039963,2cyclictest9046-21ssh21:40:531
315039963,2cyclictest7558-21awk19:25:171
315039963,2cyclictest658-21snmpd23:55:081
315039963,2cyclictest504-21dbus-daemon20:06:151
315039963,2cyclictest32241-21sh21:15:411
315039963,2cyclictest25597-21ssh22:50:041
315039963,2cyclictest25597-21ssh22:50:041
315039963,2cyclictest1906-21sh00:32:561
315039963,2cyclictest13213-21vmstat23:40:221
315039962,3cyclictest674-21lldpd19:45:111
315039962,3cyclictest658-21snmpd23:31:551
315039962,3cyclictest658-21snmpd22:13:291
315039962,3cyclictest658-21snmpd20:58:411
315039962,3cyclictest658-21snmpd20:58:411
315039962,3cyclictest658-21snmpd20:51:081
315039962,3cyclictest658-21snmpd20:10:311
315039962,3cyclictest658-21snmpd19:20:421
315039962,3cyclictest658-21snmpd19:10:131
315039962,3cyclictest504-21dbus-daemon20:35:551
315039962,3cyclictest30757-21/usr/sbin/munin21:35:191
315039962,3cyclictest2669-21fw_packets19:15:161
315039962,3cyclictest20473-21ls23:25:181
315039962,3cyclictest18145-21df19:50:131
315039962,1cyclictest0-21swapper/122:00:081
315039961,4cyclictest23782-21hddtemp_smartct21:50:151
315039960,6cyclictest0-21swapper/121:11:011
315039960,6cyclictest0-21swapper/120:30:071
315039960,5cyclictest7908-21/usr/sbin/munin20:40:131
315039960,5cyclictest0-21swapper/100:25:111
314999966,0cyclictest0-21swapper/021:10:150
314999966,0cyclictest0-21swapper/019:20:120
314999964,2cyclictest12-21ksoftirqd/021:55:010
314999963,2cyclictest8851-21apt-get19:30:110
314999963,2cyclictest658-21snmpd23:05:250
314999963,2cyclictest658-21snmpd20:50:020
314999963,2cyclictest4954-21ssh23:15:520
314999963,2cyclictest4268-21awk23:35:170
314999963,2cyclictest31335-21ssh23:51:350
314999963,2cyclictest29191-21sh00:30:090
314999963,2cyclictest275-21systemd-journal23:12:060
314999963,2cyclictest275-21systemd-journal20:33:000
314999963,2cyclictest27200-21awk22:50:190
314999963,2cyclictest27200-21awk22:50:190
314999963,2cyclictest22822-21expr21:30:120
314999963,2cyclictest17113-11brltty19:51:390
314999963,2cyclictest16661-21cat22:05:160
314999963,2cyclictest15809-21seq23:03:340
314999963,2cyclictest14415-21sort21:45:010
314999963,2cyclictest14366-21sh00:00:440
314999963,2cyclictest12408-21ssh22:41:410
314999963,1cyclictest0-21swapper/023:56:100
314999963,1cyclictest0-21swapper/021:55:090
314999962,3cyclictest658-21snmpd23:22:010
314999962,3cyclictest658-21snmpd22:45:480
314999962,3cyclictest658-21snmpd22:30:120
314999962,3cyclictest658-21snmpd21:46:520
314999962,3cyclictest658-21snmpd21:29:270
314999962,3cyclictest658-21snmpd21:22:030
314999962,3cyclictest658-21snmpd21:05:400
314999962,3cyclictest658-21snmpd20:40:020
314999962,3cyclictest658-21snmpd20:35:020
314999962,3cyclictest658-21snmpd20:21:310
314999962,3cyclictest658-21snmpd19:48:270
314999962,3cyclictest658-21snmpd00:15:470
314999962,3cyclictest658-21snmpd00:08:500
314999962,3cyclictest31189-21diskstats21:35:140
314999962,3cyclictest29767-21tail20:15:160
314999962,3cyclictest25121-21cat20:05:150
314999962,3cyclictest1671-21uname19:15:020
314999962,3cyclictest15601-21cut20:55:160
314999962,3cyclictest15601-21cut20:55:160
314999962,3cyclictest14327-21cat00:20:180
314999962,3cyclictest1410-21cat22:35:140
314999962,3cyclictest13990-21cat19:40:130
314999962,3cyclictest1380-21sensors_temp22:15:200
314999962,1cyclictest0-21swapper/022:55:220
314999961,2cyclictest1348-21cut19:15:020
314999960,3cyclictest8714-21cstates22:20:130
315119953,2cyclictest17774-21apt-get19:50:123
315119952,2cyclictest8749-21sh22:40:033
315119952,2cyclictest27135-21cut20:10:133
315119952,2cyclictest27133-21ssh23:30:023
315119952,2cyclictest25495-21hwlatdetect22:30:143
315119952,2cyclictest16687-21sendmail_mailst19:45:203
315119952,2cyclictest14876-21cat20:55:123
315119952,2cyclictest14876-21cat20:55:123
315119952,2cyclictest10830-21ssh23:20:113
315119952,1cyclictest0-21swapper/322:20:043
315119952,1cyclictest0-21swapper/321:30:013
315119951,3cyclictest24929-21cat22:10:153
315119950,4cyclictest31707-21/usr/sbin/munin19:10:183
315089953,1cyclictest36702sleep223:55:052
315089952,2cyclictest9336-21fschecks_time19:30:142
315089952,2cyclictest658-21snmpd23:30:012
315089952,2cyclictest658-21snmpd22:35:062
315089952,2cyclictest658-21snmpd19:50:032
315089952,2cyclictest504-21dbus-daemon19:40:012
315089952,2cyclictest4543-21processes20:30:182
315089952,2cyclictest27482-21gltestperf20:10:142
315089952,2cyclictest1864-21cstates19:15:022
315089952,2cyclictest17632-21ssh22:45:122
315089952,2cyclictest17128-21cat21:00:122
315089952,1cyclictest0-21swapper/200:10:062
315089951,3cyclictest8603-21/usr/sbin/munin20:40:152
315089951,3cyclictest658-21snmpd21:35:112
315089951,3cyclictest658-21snmpd20:46:502
315089951,3cyclictest658-21snmpd20:05:132
315089951,3cyclictest32389-21cat19:10:142
315089951,3cyclictest31414-21/usr/sbin/munin20:20:212
315089951,3cyclictest25733-21cat22:30:162
315089951,3cyclictest21734-21/usr/sbin/munin21:10:142
315039955,0cyclictest0-21swapper/122:30:021
315039953,1cyclictest6160-21cstates21:20:111
315039952,3cyclictest20648-21cat19:55:151
315039952,2cyclictest658-21snmpd21:00:111
315039952,2cyclictest658-21snmpd19:40:061
315039952,2cyclictest504-21dbus-daemon20:45:011
315039952,2cyclictest32120-21cat20:20:151
315039952,2cyclictest31284-21ssh21:55:071
315039952,2cyclictest21031-21sshd21:06:461
315039952,1cyclictest0-21swapper/121:25:251
315039951,3cyclictest29873-21cat20:15:161
315039951,3cyclictest27123-21cat23:10:141
315039951,3cyclictest1757-21fw_packets20:25:151
315039951,2cyclictest275-21systemd-journal23:20:121
314999952,2cyclictest8158-21fschecks_time22:00:150
314999952,2cyclictest658-21snmpd20:45:020
314999952,2cyclictest31839-1kworker/u9:223:25:100
314999952,2cyclictest17135-21apt-get21:00:120
314999952,1cyclictest0-21swapper/023:40:040
314999951,3cyclictest658-21snmpd20:25:070
314999951,3cyclictest658-21snmpd19:35:090
314999951,3cyclictest20784-21memory19:55:150
314999951,1cyclictest663-21runrttasks20:00:000
314999950,4cyclictest27201-21ssh23:30:040
315089940,3cyclictest12633-21chrt20:50:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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