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2026-06-20 - 03:54
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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
Characteristics of the highest latencies:
System rackdslot0.osadl.org (updated Sat Jun 20, 2026 00:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24025993129,1cyclictest0-21swapper/020:40:150
24027992115,5cyclictest0-21swapper/221:12:512
24027992115,5cyclictest0-21swapper/221:12:512
2402799201,16cyclictest16811-21perf00:40:002
24026992018,1cyclictest0-21swapper/123:05:121
2402699201,18cyclictest30097-21if_lxdbr000:05:171
2402799193,1cyclictest0-21swapper/200:30:172
24027991917,1cyclictest0-21swapper/223:34:432
24027991917,1cyclictest0-21swapper/223:16:252
24027991917,1cyclictest0-21swapper/222:59:192
24027991916,2cyclictest20368-21expr20:55:192
2402799190,1cyclictest0-21swapper/220:34:382
2402799190,18cyclictest6976-21nfsd422:25:182
2402799190,18cyclictest399-20systemd-journal21:57:252
2402799190,18cyclictest0-21swapper/219:23:022
2402699192,16cyclictest5119-21date20:30:011
2402699192,16cyclictest1829-21systemd-journal19:31:491
2402699192,16cyclictest1829-21systemd-journal19:31:491
24026991917,1cyclictest0-21swapper/122:45:171
24026991917,1cyclictest0-21swapper/120:08:021
2402699191,3cyclictest3978-21H222:10:211
2402699191,2cyclictest16048-21grep19:50:171
2402699190,1cyclictest0-21swapper/123:21:531
2402599192,2cyclictest11950-21date19:45:010
24025991915,2cyclictest0-21swapper/020:10:140
24025991913,5cyclictest0-21swapper/000:40:000
2402799182,15cyclictest0-21swapper/221:20:122
2402799182,15cyclictest0-21swapper/219:55:182
2402799182,15cyclictest0-21swapper/219:55:172
24027991816,1cyclictest0-21swapper/222:00:132
24027991813,4cyclictest0-21swapper/221:44:152
2402799181,16cyclictest402-21sed21:20:022
2402799180,3cyclictest22560-21munin-run20:05:012
2402799180,17cyclictest399-20systemd-journal23:49:552
2402799180,17cyclictest1351-21lxd19:14:492
2402799180,17cyclictest0-21swapper/219:25:112
2402699183,1cyclictest0-21swapper/120:51:121
2402699183,14cyclictest0-21swapper/122:40:151
2402699182,1cyclictest21-21ksoftirqd/119:35:201
24026991815,2cyclictest32099-21expr22:15:121
24026991815,2cyclictest12544-21ls22:35:151
24026991814,2cyclictest0-21swapper/120:00:131
24026991813,3cyclictest9246-21nfsd420:35:171
2402699181,2cyclictest21-21ksoftirqd/122:31:041
2402699181,16cyclictest775-21expr21:20:131
2402699180,16cyclictest12199-21cpuspeed_turbos19:45:131
2402699180,14cyclictest0-21swapper/122:08:411
24025991816,1cyclictest9-21ksoftirqd/019:15:430
24025991815,2cyclictest3981-21H222:10:210
24025991815,2cyclictest2111-21http_loadtime23:15:140
24025991815,2cyclictest0-21swapper/021:40:170
24025991814,3cyclictest14551-21cat19:50:000
24025991814,3cyclictest1351-21lxd19:12:490
24025991814,3cyclictest0-21swapper/022:40:120
2402599181,16cyclictest0-21swapper/000:00:190
2402599180,2cyclictest0-21swapper/023:05:170
2402599180,16cyclictest9230-21nfsd420:35:180
24027991715,1cyclictest9048-21date21:35:012
24027991715,1cyclictest9048-21date21:35:012
24027991715,1cyclictest0-21swapper/223:43:002
24027991715,1cyclictest0-21swapper/222:20:202
24027991714,2cyclictest993-21dbus-daemon23:26:252
24027991714,2cyclictest7944-21apache_accesses20:35:112
24027991714,2cyclictest6956-21expr19:35:122
24027991714,2cyclictest26900-21grep22:05:182
24027991714,2cyclictest2173-21apache_processe20:25:112
24027991714,2cyclictest15556-21needreboot22:40:162
24027991714,2cyclictest12272-21if_eno122:35:152
24027991713,3cyclictest26881-21pzem_voltage23:00:192
24027991713,3cyclictest1035-21thermald23:10:192
24027991712,4cyclictest0-21swapper/220:46:092
2402799171,1cyclictest0-21swapper/222:30:162
2402799171,15cyclictest26481-21taskset21:05:342
2402799171,15cyclictest0-21swapper/220:15:132
2402799170,2cyclictest9541-21cpuspeed_turbos19:40:132
2402799170,2cyclictest7565-21nfsd421:30:162
2402799170,2cyclictest28931-21sed22:10:022
2402799170,2cyclictest21245-21ntp_kernel_pll_22:50:172
2402799170,2cyclictest19544-21seq21:52:172
2402799170,2cyclictest17119-21/usr/sbin/munin22:45:142
2402799170,2cyclictest14506-21snapd00:00:022
2402799170,16cyclictest9481-21fschecks_count00:25:142
2402799170,16cyclictest5534-21latency_hist00:20:012
2402799170,16cyclictest31709-21/usr/sbin/munin22:15:152
2402799170,16cyclictest30599-21ntp_offset00:05:192
2402799170,16cyclictest30103-21latency_hist19:20:022
2402799170,16cyclictest28152-21cat23:05:132
2402799170,16cyclictest24282-21munin-run21:05:002
2402799170,16cyclictest23925-21grep23:55:132
2402799170,16cyclictest15036-21cstates19:50:122
2402799170,16cyclictest12950-21expr23:35:132
2402799170,16cyclictest12012-21/usr/sbin/munin19:45:132
2402799170,16cyclictest11494-21fschecks_count20:40:142
2402799170,16cyclictest0-21swapper/219:31:112
2402799170,16cyclictest0-21swapper/219:31:112
24026991715,1cyclictest23675-21idleruntime22:00:141
24026991714,2cyclictest863-21avahi-daemon21:35:191
24026991714,2cyclictest863-21avahi-daemon21:35:191
24026991714,2cyclictest8626-21pluginstate23:25:201
24026991714,2cyclictest4099-21H222:10:211
24026991714,2cyclictest3987-21H222:10:211
24026991714,2cyclictest28707-21chrt00:04:021
24026991714,2cyclictest1348-21lxd21:58:491
2402699171,15cyclictest27835-21mailstats20:10:201
2402699171,15cyclictest0-21swapper/120:48:311
2402699170,2cyclictest817-21chrt23:14:451
2402699170,2cyclictest4099-21H222:10:211
2402699170,2cyclictest3971-21latency_hist23:20:001
2402699170,2cyclictest3351-21lxd00:38:361
2402699170,2cyclictest30392-21ntpq22:10:181
2402699170,2cyclictest2666-21apache_volume00:15:111
2402699170,2cyclictest23165-21anvil23:56:291
2402699170,2cyclictest19813-21munin-run20:00:001
2402699170,2cyclictest19813-21munin-run20:00:001
2402699170,16cyclictest993-21dbus-daemon22:50:201
2402699170,16cyclictest7034-21fschecks_time21:30:131
2402699170,16cyclictest526-21nfsd420:20:181
2402699170,16cyclictest426-21systemd-udevd19:11:521
2402699170,16cyclictest29532-21expr20:15:161
2402699170,16cyclictest20382-21nfsd420:55:191
2402699170,16cyclictest17430-21/usr/sbin/munin21:50:131
2402699170,16cyclictest1300-21lxd19:22:501
2402699170,16cyclictest11172-21cat00:30:011
24025991715,1cyclictest0-21swapper/021:35:000
24025991715,1cyclictest0-21swapper/019:35:160
24025991714,2cyclictest9989-21nfsd422:30:160
24025991714,2cyclictest7164-21/usr/sbin/munin23:25:150
24025991714,2cyclictest6627-21irqstats00:20:160
24025991714,2cyclictest6293-21/usr/sbin/munin22:25:150
24025991714,2cyclictest563-21cpuspeed_turbos19:25:150
24025991714,2cyclictest4987-21expr21:25:170
24025991714,2cyclictest3991-21H222:10:210
24025991714,2cyclictest31745-21cupsd00:15:550
24025991714,2cyclictest30322-21cpuspeed_turbos21:15:130
24025991714,2cyclictest28873-21gpgv22:10:030
24025991714,2cyclictest22475-21cron22:04:550
24025991714,2cyclictest2218-21cron00:15:000
24025991714,2cyclictest20407-21ntp_kernel_err20:55:200
24025991714,2cyclictest1843-21python322:20:000
24025991714,2cyclictest18156-21smartctl21:50:150
24025991714,2cyclictest15562-21apt23:40:110
24025991714,2cyclictest14799-21cpu19:50:120
24025991714,2cyclictest12943-21proc_pri22:35:180
24025991714,2cyclictest0-21swapper/020:04:060
24025991714,1cyclictest0-21swapper/021:00:140
24025991713,3cyclictest1079-21cups-browsed20:20:220
2402599171,2cyclictest3988-21H222:10:210
2402599171,15cyclictest9-21ksoftirqd/023:13:470
2402599171,15cyclictest0-21swapper/021:10:130
2402599171,15cyclictest0-21swapper/021:10:130
2402599170,2cyclictest31703-21logrotate00:09:530
2402599170,2cyclictest25855-21munin-run20:10:010
2402599170,2cyclictest25175-21munin-plugin-st23:00:010
2402599170,2cyclictest14997-21sed23:39:010
2402599170,2cyclictest10366-21sed00:25:190
2402599170,16cyclictest2920-21sshd21:24:360
2402599170,16cyclictest28992-21apache_processe20:15:120
2402599170,16cyclictest21364-21expr23:50:120
2402599170,16cyclictest20186-21apache_volume21:55:120
2402599170,16cyclictest18705-21systemctl22:45:200
2402599170,16cyclictest16891-21df20:50:120
2402599170,16cyclictest15609-21taskset20:46:260
2402599170,16cyclictest11576-21systemctl21:40:000
2402599170,16cyclictest11576-21systemctl21:40:000
2402599170,16cyclictest1100-21snmpd20:32:340
2402599170,16cyclictest10952-21memory23:30:160
2402599170,16cyclictest1085-21gdbus21:45:200
2402599170,15cyclictest0-21swapper/023:57:060
24027991614,1cyclictest6888-21needreboot00:20:182
24027991614,1cyclictest0-21swapper/220:23:342
24027991614,1cyclictest0-21swapper/220:05:132
2402799160,2cyclictest4213-21df21:25:122
2402799160,2cyclictest32225-21apache_accesses00:10:112
2402799160,2cyclictest26263-21awk20:10:112
2402799160,1cyclictest14785-21awk21:45:142
2402799160,15cyclictest3450-21gsd-color23:52:182
2402799160,15cyclictest0-21swapper/223:20:112
24026991614,1cyclictest21019-21apt-get23:50:111
24026991614,1cyclictest0-21swapper/123:45:131
24026991614,1cyclictest0-21swapper/123:35:111
24026991614,1cyclictest0-21swapper/121:25:121
24026991614,1cyclictest0-21swapper/121:10:181
24026991614,1cyclictest0-21swapper/121:10:181
24026991614,1cyclictest0-21swapper/119:15:151
24026991613,2cyclictest5229-21apt20:30:131
2402699160,2cyclictest9314-21apt19:40:121
2402699160,2cyclictest15418-21fschecks_time21:45:141
2402699160,1cyclictest21791-21apt21:00:121
2402699160,1cyclictest0-21swapper/123:40:131
2402699160,1cyclictest0-21swapper/122:55:141
2402699160,1cyclictest0-21swapper/121:40:131
2402699160,1cyclictest0-21swapper/121:15:141
2402699160,1cyclictest0-21swapper/100:30:121
2402699160,15cyclictest0-21swapper/123:00:141
2402699160,15cyclictest0-21swapper/122:20:091
2402699160,15cyclictest0-21swapper/121:05:141
2402699160,15cyclictest0-21swapper/120:40:131
2402699160,15cyclictest0-21swapper/119:25:181
24025991614,1cyclictest0-21swapper/023:45:120
24025991614,1cyclictest0-21swapper/023:20:120
24025991614,1cyclictest0-21swapper/022:50:160
24025991614,1cyclictest0-21swapper/019:30:130
24025991614,1cyclictest0-21swapper/019:30:130
2402599160,15cyclictest2437-21cstates20:25:130
2402599160,15cyclictest0-21swapper/023:00:170
2402599160,15cyclictest0-21swapper/019:55:140
2402599160,15cyclictest0-21swapper/019:55:140
2402599160,15cyclictest0-21swapper/000:30:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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