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2025-12-14 - 08:41
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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 Sun Dec 14, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
158132296242,45sleep00-21swapper/019:08:010
156542296234,50sleep10-21swapper/119:06:051
159342277251,17sleep20-21swapper/219:09:272
156512260232,19sleep30-21swapper/319:06:043
239582680,0sleep20-21swapper/220:35:162
265892550,0sleep20-21swapper/223:05:152
104992180,1sleep30-21swapper/323:40:193
294672140,0sleep00-21swapper/000:25:010
1609499142,8cyclictest23914-21cat20:35:143
1609499140,8cyclictest31324-21grep23:15:153
1609499131,11cyclictest31502-21apt-get22:05:133
1609499131,0cyclictest12423-21apt-get22:35:123
1609499130,9cyclictest32530-21cut00:30:183
1609499130,9cyclictest15101-21sed23:50:193
1609499130,8cyclictest8665-21irqstats22:25:153
1609499130,8cyclictest8501-21gunzip20:00:183
1609499120,8cyclictest28836-21gunzip20:45:213
1609499120,8cyclictest10064-21grep21:15:213
1609499120,7cyclictest13967-21needreboot21:25:173
1609499120,2cyclictest413-21cpuspeed_turbos23:20:113
1609499120,1cyclictest18109-21apt-get21:35:023
1609499120,1cyclictest14050-21apt-get20:15:133
1609499120,1cyclictest14050-21apt-get20:15:133
1609499120,0cyclictest18491-21apt-get00:00:113
1609499112,8cyclictest3296-21cat19:50:173
1609499111,9cyclictest27038-21apt-get21:55:103
1609499110,7cyclictest31725-21find19:40:193
1609499110,7cyclictest2472-21cat22:10:173
1609499110,7cyclictest20689-21/usr/sbin/munin00:05:213
1609499110,7cyclictest19687-21awk20:25:163
1609499110,7cyclictest16564-21if_enp4s023:55:163
1609499110,7cyclictest1573-21which19:45:203
1609499110,6cyclictest1954-21/usr/sbin/munin21:00:163
1609499110,2cyclictest11706-21missed_timers21:20:173
1609499110,1cyclictest29279-21apt-get22:00:123
1609499110,1cyclictest0-21swapper/323:30:153
1609499110,10cyclictest28076-21cron19:35:003
1609499103,6cyclictest3075-21gltestperf23:25:153
1609499102,7cyclictest24122-21sensors_temp00:10:193
1609499101,8cyclictest4177-21cat22:15:153
1609499101,8cyclictest31898-21munin-run20:54:593
1609499100,9cyclictest8971-21cron23:40:003
1609499100,9cyclictest7058-21expr22:20:203
1609499100,9cyclictest6367-21sed19:55:213
1609499100,9cyclictest504-21dbus-daemon22:35:013
1609499100,9cyclictest29352-21turbostat00:25:013
1609499100,9cyclictest24855-21ntp_states19:25:173
1609499100,9cyclictest21158-21gpgv19:20:003
1609499100,9cyclictest15591-21ntpq22:40:203
1609499100,9cyclictest1-21systemd21:06:053
1609499100,9cyclictest0-21swapper/300:35:143
1609499100,8cyclictest30260-21chrt19:39:393
1609499100,8cyclictest275-21systemd-journal23:50:003
1609499100,8cyclictest275-21systemd-journal22:50:003
1609499100,6cyclictest24452-21grep23:00:173
1609499100,3cyclictest25953-21find21:50:193
1609499100,2cyclictest29580-21/usr/sbin/munin00:25:203
1609499100,2cyclictest23092-21sshd22:57:563
1609499100,2cyclictest18080-21chrt20:23:033
1609499100,1cyclictest0-21swapper/323:10:213
1609499100,1cyclictest0-21swapper/320:40:103
1609499100,1cyclictest0-21swapper/320:05:143
1609499100,0cyclictest11831-21apt-get20:10:123
1609499100,0cyclictest0-21swapper/321:45:123
1609499100,0cyclictest0-21swapper/321:40:123
1609499100,0cyclictest0-21swapper/321:30:113
1609499100,0cyclictest0-21swapper/320:55:123
1609499100,0cyclictest0-21swapper/319:10:083
1608899102,1cyclictest0-21swapper/120:35:021
1608399109,1cyclictest12-21ksoftirqd/019:50:000
160949991,7cyclictest20089-21pmu-power22:50:173
160949990,8cyclictest25901-21grep00:15:173
160949990,8cyclictest25849-21apt-config23:05:013
160949990,8cyclictest21332-21hddtemp_smartct20:30:163
160949990,0cyclictest21647-21apt-get19:20:013
160949990,0cyclictest0-21swapper/321:10:113
160889990,6cyclictest25124-21taskset23:00:231
160839997,1cyclictest12-21ksoftirqd/019:40:000
1696280,0sleep01693-21cron20:59:590
160929985,2cyclictest28-21ksoftirqd/222:15:012
160929983,3cyclictest275-21systemd-journal19:21:242
160889985,2cyclictest10877-21apt-get21:20:121
160889983,4cyclictest31896-21idleruntime-cro20:55:001
160889981,5cyclictest27331-21wc23:05:191
160889981,3cyclictest10049-21cat21:15:201
160839986,2cyclictest12-21ksoftirqd/020:00:000
160839983,3cyclictest275-21systemd-journal21:57:310
160929975,2cyclictest28-21ksoftirqd/200:00:012
160929973,3cyclictest3579-21ntpq19:50:192
160929970,1cyclictest13680-21apt-get23:50:112
160889974,2cyclictest4839-21apt-get19:55:111
160889974,2cyclictest22-21ksoftirqd/100:25:121
160889974,2cyclictest21126-21perf19:20:011
160889974,2cyclictest11198-21apt23:45:011
160889973,3cyclictest504-21dbus-daemon23:35:141
160889973,3cyclictest495-21cat20:55:161
160889973,3cyclictest275-21systemd-journal20:05:001
160889973,3cyclictest17879-21latency_hist00:00:011
160889973,3cyclictest0-21swapper/122:15:131
160889973,3cyclictest0-21swapper/121:45:121
160889973,2cyclictest0-21swapper/120:05:131
160889972,4cyclictest21273-21gltestperf00:05:141
160889972,4cyclictest0-21swapper/122:35:131
160889972,3cyclictest0-21swapper/121:05:131
160889971,2cyclictest3912-21wc19:50:201
160889971,2cyclictest24590-21awk19:25:161
160889971,2cyclictest11612-21date22:30:211
160889970,5cyclictest2988-21taskset22:11:551
160889970,5cyclictest26737-21seq21:54:391
160889970,4cyclictest661-21taskset22:05:391
160839973,3cyclictest275-21systemd-journal20:03:560
160929963,2cyclictest658-21snmpd20:08:142
160929963,2cyclictest275-21systemd-journal19:48:182
160929963,2cyclictest21288-21tr20:30:172
160929963,2cyclictest20867-21taskset22:52:532
160929963,2cyclictest1834-21wc00:35:132
160929962,3cyclictest9519-21expr23:40:132
160929962,3cyclictest658-21snmpd23:47:392
160929962,3cyclictest658-21snmpd23:13:012
160929962,3cyclictest658-21snmpd22:46:342
160929962,3cyclictest658-21snmpd22:33:432
160929962,3cyclictest658-21snmpd21:43:132
160929962,3cyclictest658-21snmpd21:06:512
160929962,3cyclictest658-21snmpd20:54:422
160929962,3cyclictest658-21snmpd20:20:372
160929962,3cyclictest658-21snmpd20:12:282
160929962,3cyclictest658-21snmpd20:01:582
160929962,3cyclictest658-21snmpd19:43:102
160929962,3cyclictest658-21snmpd19:14:022
160929962,3cyclictest658-21snmpd00:24:242
160929962,3cyclictest658-21snmpd00:01:422
160929962,3cyclictest31349-21wc23:15:142
160929962,3cyclictest27670-21basename21:55:132
160929962,3cyclictest26019-21sensors21:50:192
160929962,3cyclictest19819-21cat19:15:192
160929962,3cyclictest13343-21ntpq22:35:172
160929962,3cyclictest12286-21cat21:20:192
160889965,0cyclictest16297-21apt-get20:20:121
160889965,0cyclictest16294-21apt-get19:10:091
160889964,2cyclictest0-21swapper/100:00:011
160889964,0cyclictest1627-21apt-get00:35:141
160889963,2cyclictest658-21snmpd00:16:571
160889963,2cyclictest22557-21sshd20:33:291
160889963,2cyclictest21500-21ps21:40:181
160889962,3cyclictest8171-21cat22:25:131
160889962,3cyclictest7964-21/usr/sbin/munin21:10:191
160889962,3cyclictest658-21snmpd23:15:101
160889962,3cyclictest658-21snmpd21:57:151
160889962,3cyclictest6291-21grep22:20:161
160889962,3cyclictest32401-21sed00:30:151
160889962,3cyclictest30587-21apt-get19:40:121
160889962,3cyclictest29757-21grep22:00:151
160889962,3cyclictest29366-21awk00:25:001
160889962,3cyclictest28385-21/usr/sbin/munin23:10:131
160889962,3cyclictest27800-21anacron19:31:491
160889962,3cyclictest2720-21tr23:25:141
160889962,3cyclictest24403-21tail00:10:201
160889962,3cyclictest22276-21sed19:20:151
160889962,3cyclictest21324-21apt-get22:55:121
160889962,3cyclictest19104-21apt22:50:111
160889962,3cyclictest18628-21sort20:25:111
160889962,3cyclictest17409-21head22:45:141
160889962,3cyclictest16054-21fschecks_count21:30:121
160889962,3cyclictest15173-21grep22:40:181
160889962,3cyclictest1474-21grep23:20:181
160889962,3cyclictest14348-21cat23:50:141
160889962,3cyclictest13196-21grep21:25:121
160889962,3cyclictest12388-21cut20:10:131
160889962,3cyclictest0-21swapper/121:00:111
160889961,1cyclictest6403-21runrttasks23:31:031
160889961,1cyclictest22-21ksoftirqd/121:35:011
160889961,1cyclictest0-21swapper/120:50:001
160889960,3cyclictest25779-21cat20:40:121
160889960,2cyclictest22-21ksoftirqd/119:45:161
160889960,2cyclictest14710-21if_err_enp4s020:15:151
160889960,2cyclictest14710-21if_err_enp4s020:15:151
160889960,2cyclictest11464-21apt-get23:45:121
160839964,1cyclictest21882-21tail22:55:140
160839963,2cyclictest992-21if_enp4s023:20:150
160839963,2cyclictest9792-21chrt22:28:260
160839963,2cyclictest658-21snmpd20:05:110
160839963,2cyclictest658-21snmpd19:52:000
160839963,2cyclictest560-21gdbus23:20:010
160839963,2cyclictest504-21dbus-daemon23:55:000
160839962,3cyclictest658-21snmpd23:46:110
160839962,3cyclictest658-21snmpd23:41:150
160839962,3cyclictest658-21snmpd23:32:140
160839962,3cyclictest658-21snmpd23:28:410
160839962,3cyclictest658-21snmpd23:14:080
160839962,3cyclictest658-21snmpd23:01:000
160839962,3cyclictest658-21snmpd22:42:120
160839962,3cyclictest658-21snmpd22:37:570
160839962,3cyclictest658-21snmpd22:15:420
160839962,3cyclictest658-21snmpd22:06:540
160839962,3cyclictest658-21snmpd21:35:580
160839962,3cyclictest658-21snmpd21:33:040
160839962,3cyclictest658-21snmpd21:19:390
160839962,3cyclictest658-21snmpd21:11:500
160839962,3cyclictest658-21snmpd20:40:110
160839962,3cyclictest658-21snmpd20:15:530
160839962,3cyclictest658-21snmpd20:15:530
160839962,3cyclictest658-21snmpd19:40:480
160839962,3cyclictest658-21snmpd19:33:270
160839962,3cyclictest658-21snmpd00:11:080
160839962,3cyclictest658-21snmpd00:09:350
160839962,3cyclictest560-21gdbus19:25:060
160839962,3cyclictest504-21dbus-daemon20:40:010
160839962,3cyclictest275-21systemd-journal21:22:030
160839962,3cyclictest2294-21cat00:35:170
160839962,1cyclictest12175-21basename22:35:010
160839961,4cyclictest504-11dbus-daemon20:30:160
160929953,1cyclictest28079-21idleruntime-cro19:35:012
160929953,1cyclictest23481-21cut00:10:152
160929952,2cyclictest8913-21grep22:25:172
160929952,2cyclictest879-21tail23:20:132
160929952,2cyclictest7363-21ls23:35:142
160929952,2cyclictest658-21snmpd21:45:102
160929952,2cyclictest6492-21cpuspeed21:10:122
160929952,2cyclictest6433-21cat22:20:172
160929952,2cyclictest5766-21open_inodes23:30:152
160929952,2cyclictest5090-21cat19:55:132
160929952,2cyclictest4188-21cat22:15:152
160929952,2cyclictest3529-21ntpq23:25:182
160929952,2cyclictest32172-21cat00:30:142
160929952,2cyclictest31487-21acpi22:05:132
160929952,2cyclictest30235-21uname22:00:172
160929952,2cyclictest28568-21cat19:35:152
160929952,2cyclictest26977-21chrt00:18:382
160929952,2cyclictest25757-21expr20:40:122
160929952,2cyclictest24083-21tr19:25:132
160929952,2cyclictest23754-21expr23:00:142
160929952,2cyclictest2331-21expr21:00:132
160929952,2cyclictest22448-21find22:55:192
160929952,2cyclictest20718-21cpu00:05:132
160929952,2cyclictest18018-21apt-config21:35:012
160929952,2cyclictest15575-21gdbus21:30:022
160929952,2cyclictest15002-21cat22:40:162
160929952,2cyclictest13100-21awk21:25:122
160929951,3cyclictest658-21snmpd21:15:212
160929951,3cyclictest658-21snmpd20:55:272
160929951,3cyclictest658-21snmpd20:45:452
160929951,3cyclictest30334-21ls00:25:152
160929950,3cyclictest275-21systemd-journal20:15:592
160929950,3cyclictest275-21systemd-journal20:15:592
160929950,1cyclictest18490-21/usr/sbin/munin20:25:102
160889951,3cyclictest28760-21grep19:35:161
160839955,0cyclictest0-21swapper/021:50:210
160839955,0cyclictest0-21swapper/021:41:120
160839953,1cyclictest663-21runrttasks00:00:010
160839953,1cyclictest30407-21fschecks_time20:50:140
160839953,1cyclictest25354-21wc00:15:140
160839953,1cyclictest16836-21grep20:20:150
160839953,1cyclictest16104-21cat23:55:130
160839952,3cyclictest16887-21apt-get22:45:110
160839952,2cyclictest658-21snmpd21:25:130
160839952,2cyclictest658-21snmpd21:00:110
160839952,2cyclictest658-21snmpd00:25:370
160839952,2cyclictest32025-21cat00:30:150
160839952,2cyclictest31047-21taskset22:02:500
160839952,2cyclictest26149-21cat23:05:130
160839952,2cyclictest23560-21sh21:45:170
160839952,2cyclictest22359-21cat19:20:150
160839952,2cyclictest19759-21sed19:15:180
160839952,2cyclictest1432-21cut22:10:120
160839952,2cyclictest12446-21idleruntime20:10:150
160839951,3cyclictest658-21snmpd22:50:120
160839951,3cyclictest658-21snmpd21:08:350
160839951,3cyclictest658-21snmpd20:45:350
160839951,3cyclictest19467-21uname20:25:160
160839951,3cyclictest17248-21/usr/sbin/munin19:10:150
160839950,4cyclictest6985-21/usr/sbin/munin23:35:150
160839940,3cyclictest5748-21/usr/sbin/munin22:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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