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2026-06-01 - 08:42
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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 376 highest latencies:
System rackdslot0.osadl.org (updated Mon Jun 01, 2026 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
574599360,35cyclictest0-21swapper/019:50:150
574799303,15cyclictest0-21swapper/200:00:182
5745992414,5cyclictest0-21swapper/021:50:140
574699230,0cyclictest0-21swapper/120:37:581
5745992314,8cyclictest31223-21taskset21:45:490
5745992314,8cyclictest31223-21taskset21:45:480
5745992312,8cyclictest0-21swapper/021:58:180
5745992215,6cyclictest23125-21taskset00:27:510
5745992214,7cyclictest7218-21sh23:00:130
5745992213,8cyclictest13702-21memory23:10:160
5745992213,3cyclictest21285-21if_enp1s021:30:140
574599221,1cyclictest99732sleep021:10:170
574599220,21cyclictest19216-21expr20:30:130
574599220,21cyclictest12370-21perf00:10:010
574599220,16cyclictest27636-21irqstats23:35:170
574699217,13cyclictest0-21swapper/121:10:131
574699210,0cyclictest0-21swapper/121:21:071
5745992115,5cyclictest0-21swapper/021:15:560
5745992114,6cyclictest32340-21perf20:55:010
5745992114,6cyclictest13540-21ls22:15:010
5745992114,6cyclictest10811-21ls22:10:000
5745992114,6cyclictest0-21swapper/022:40:150
5745992114,0cyclictest0-21swapper/023:29:450
5745992114,0cyclictest0-21swapper/020:16:250
5745992113,2cyclictest31866-21cat19:55:130
5745992113,2cyclictest30422-21dpkg22:45:130
574599211,1cyclictest0-21swapper/022:25:220
574599210,2cyclictest22995-21/usr/sbin/munin22:30:180
574599210,20cyclictest17273-21ps23:15:190
574599210,20cyclictest0-21swapper/020:45:050
574599210,1cyclictest0-21swapper/022:55:130
574599210,1cyclictest0-21swapper/022:35:150
574599210,1cyclictest0-21swapper/021:00:010
574599210,1cyclictest0-21swapper/019:15:160
574599210,19cyclictest0-21swapper/023:55:150
574599210,19cyclictest0-21swapper/023:23:240
574599210,16cyclictest25393-21seq19:40:380
574599210,16cyclictest16959-21cat22:20:130
574599210,15cyclictest22478-21chrt19:35:340
574599210,15cyclictest22478-21chrt19:35:330
574599210,15cyclictest13727-21ntpq19:20:200
574599210,15cyclictest0-21swapper/000:15:150
574599210,14cyclictest0-21swapper/023:50:170
574799204,15cyclictest9944-21mii-tool21:10:152
574799204,15cyclictest0-21swapper/221:22:072
5747992017,2cyclictest27385-21cpuspeed_turbos20:45:152
5747992016,3cyclictest0-21swapper/223:26:302
5747992016,3cyclictest0-21swapper/223:02:192
5747992016,3cyclictest0-21swapper/219:12:172
574799200,19cyclictest843-21systemd-network21:44:182
574699202,17cyclictest0-21swapper/119:54:281
574699200,19cyclictest870-21systemd-logind22:43:521
574599204,15cyclictest0-21swapper/022:04:500
5745992014,5cyclictest12222-21latency_hist23:10:000
5745992014,5cyclictest0-21swapper/023:40:170
5745992014,5cyclictest0-21swapper/020:35:140
5745992014,5cyclictest0-21swapper/020:00:150
5745992014,5cyclictest0-21swapper/019:32:450
5745992014,5cyclictest0-21swapper/019:25:190
5745992014,0cyclictest0-21swapper/020:05:170
5745992013,6cyclictest0-21swapper/022:20:010
5745992013,1cyclictest0-21swapper/020:40:140
5745992013,1cyclictest0-21swapper/020:25:140
574599201,1cyclictest0-21swapper/000:10:070
574599200,1cyclictest0-21swapper/023:45:170
574599200,1cyclictest0-21swapper/022:50:150
574599200,1cyclictest0-21swapper/021:25:150
574599200,1cyclictest0-21swapper/021:05:200
574599200,19cyclictest0-21swapper/023:30:120
574599200,19cyclictest0-21swapper/000:35:170
574599200,19cyclictest0-21swapper/000:31:590
574599200,18cyclictest0-21swapper/019:10:150
574599200,15cyclictest28715-21cut19:50:020
574599200,14cyclictest0-21swapper/021:20:190
574599200,14cyclictest0-21swapper/020:20:140
574599200,0cyclictest0-21swapper/020:11:160
574799192,1cyclictest0-21swapper/222:04:292
5747991917,1cyclictest1588-21basename22:50:172
574799190,17cyclictest0-21swapper/200:15:202
574699192,16cyclictest26106-21sendmail21:40:001
574699192,16cyclictest17972-21latency_hist00:19:591
5745991914,4cyclictest0-21swapper/021:00:130
5745991914,0cyclictest0-21swapper/000:02:230
5745991913,2cyclictest27319-21iwlist21:40:160
5745991913,1cyclictest0-21swapper/000:23:290
5747991815,2cyclictest31631-21date21:50:012
5747991815,2cyclictest31631-21date21:50:012
574799181,3cyclictest31940-21/usr/sbin/munin21:50:122
574799180,3cyclictest399-20systemd-journal00:38:592
574799180,17cyclictest3985-21H222:10:212
574799180,17cyclictest10076-21http_loadtime23:05:152
574699183,1cyclictest21-21ksoftirqd/121:45:261
574699183,1cyclictest21-21ksoftirqd/121:45:251
574699183,1cyclictest201rcuc/119:39:381
574699183,1cyclictest201rcuc/119:39:381
574699182,15cyclictest324292chrt22:46:131
574699182,15cyclictest21-21ksoftirqd/121:05:361
5746991816,1cyclictest21-21ksoftirqd/121:55:011
5746991816,1cyclictest21-21ksoftirqd/121:20:001
5746991816,1cyclictest21-21ksoftirqd/120:15:151
5746991815,2cyclictest4035-21H222:10:211
5746991815,2cyclictest24036-21fschecks_count19:40:151
5746991814,3cyclictest6062-21cpuspeed_turbos23:55:131
5746991814,2cyclictest15945-21lxd00:12:351
574699180,17cyclictest870-21systemd-logind19:21:511
574699180,17cyclictest843-21systemd-network20:12:031
574699180,17cyclictest10534-21needreboot23:05:181
5747991716,1cyclictest28-21ksoftirqd/222:42:582
5747991715,1cyclictest5081-21/usr/sbin/munin20:05:152
5747991715,1cyclictest0-21swapper/200:25:132
5747991714,2cyclictest8356-21munin-run00:00:012
5747991714,2cyclictest4204-21cat22:55:142
5747991714,2cyclictest32343-21/usr/sbin/munin23:45:112
5747991714,2cyclictest29975-21cat19:50:192
5747991714,2cyclictest25605-21runrttasks21:36:072
5747991714,2cyclictest24886-21expr20:40:152
5747991714,2cyclictest21800-21grep19:35:182
5747991714,2cyclictest21800-21grep19:35:172
5747991714,2cyclictest17708-21dpkg21:25:012
5747991714,2cyclictest15075-21http23:15:002
5747991714,2cyclictest14391-21ls22:15:142
574799171,15cyclictest187752chrt22:23:152
574799170,2cyclictest8420-21cut22:05:152
574799170,2cyclictest4837-21threads23:50:212
574799170,2cyclictest27703-21sendmail_mailst19:45:212
574799170,2cyclictest23994-21acpi23:30:102
574799170,2cyclictest19647-21http_loadtime20:30:162
574799170,2cyclictest11122-21apache_processe22:10:122
574799170,2cyclictest0-21swapper/219:55:182
574799170,16cyclictest4101-21ntp_states21:55:182
574799170,16cyclictest32203-21chrt20:53:362
574799170,16cyclictest2945-21if_enp1s020:00:172
574799170,16cyclictest25580-21sed00:30:212
574799170,16cyclictest19866-21awk00:20:222
574799170,16cyclictest19315-21/usr/sbin/munin22:25:152
574799170,16cyclictest18875-21missed_timers19:30:172
574799170,16cyclictest1526-21lxd23:22:362
574799170,16cyclictest14632-21chrt19:24:552
574799170,16cyclictest10883-21cpuspeed_turbos20:15:132
574699172,1cyclictest21-21ksoftirqd/123:10:131
574699172,1cyclictest21-21ksoftirqd/100:00:251
5746991715,1cyclictest25518-21date22:35:151
5746991715,1cyclictest21553-21latency_hist20:35:011
5746991715,1cyclictest21-21ksoftirqd/123:40:001
5746991714,2cyclictest7273-21sed22:00:241
5746991714,2cyclictest19478-21tr22:25:141
5746991714,2cyclictest13674-21latency_hist22:15:011
5746991714,1cyclictest21-21ksoftirqd/120:50:011
574699171,15cyclictest26276-21cpuspeed_turbos19:45:151
574699171,15cyclictest0-21swapper/123:45:181
574699170,2cyclictest3812-21apache_accesses22:55:111
574699170,2cyclictest31235-21grep20:50:191
574699170,2cyclictest22272-21grep23:25:181
574699170,1cyclictest21-21ksoftirqd/123:15:131
574699170,16cyclictest7779-21sed20:10:001
574699170,16cyclictest7313-21grep23:00:151
574699170,16cyclictest3987-21H222:10:211
574699170,16cyclictest30442-21if_enp1s023:40:161
574699170,16cyclictest18147-21pzem_power22:20:211
574699170,16cyclictest17557-21apt-config21:25:011
574699170,16cyclictest17437-21cut20:25:181
574699170,16cyclictest14994-21/usr/sbin/munin20:20:211
574699170,16cyclictest14545-21snapd19:55:281
574699170,16cyclictest10322-21needreboot19:15:201
574699170,15cyclictest3983-21H222:10:211
5747991614,1cyclictest15556-21expr19:25:162
5747991613,2cyclictest4099-21H222:10:212
5747991612,3cyclictest22899-21nfsd420:35:172
574799160,2cyclictest3342-21cpu21:00:142
574799160,1cyclictest16187-21/usr/sbin/munin20:25:182
574799160,15cyclictest8189-21tr20:10:162
574799160,15cyclictest62142sleep221:05:052
574799160,15cyclictest3985-21H222:10:212
574799160,15cyclictest31559-21sed22:45:172
574799160,15cyclictest30306-21grep23:40:162
574799160,15cyclictest25248-21expr22:35:152
574799160,15cyclictest22040-21acpi22:30:112
574799160,15cyclictest21221-21idleruntime21:30:152
574799160,15cyclictest0-21swapper/223:35:162
574799160,15cyclictest0-21swapper/221:15:142
574799160,15cyclictest0-21swapper/220:55:212
574799160,15cyclictest0-21swapper/220:20:172
574799160,15cyclictest0-21swapper/219:43:012
574799160,15cyclictest0-21swapper/200:05:432
5746991614,1cyclictest48352chrt21:57:101
5746991614,1cyclictest0-21swapper/122:05:201
5746991614,1cyclictest0-21swapper/121:30:131
5746991614,1cyclictest0-21swapper/120:40:141
5746991614,1cyclictest0-21swapper/119:30:151
5746991614,1cyclictest0-21swapper/119:25:171
5746991614,1cyclictest0-21swapper/100:25:131
5746991614,1cyclictest0-21swapper/100:20:161
5746991613,2cyclictest4430-21kernelversion21:00:171
574699161,1cyclictest21-21ksoftirqd/120:55:121
574699160,1cyclictest261952chrt23:33:381
574699160,1cyclictest15945-21lxd23:52:351
574699160,15cyclictest7132chrt22:50:121
574699160,15cyclictest21-21ksoftirqd/122:30:111
574699160,15cyclictest14257-21expr22:15:131
574699160,15cyclictest0-21swapper/123:20:151
574699160,15cyclictest0-21swapper/120:00:231
574699160,15cyclictest0-21swapper/119:10:111
574699150,14cyclictest0-21swapper/121:40:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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