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2026-06-21 - 17:08
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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 792 highest latencies:
System rackdslot0.osadl.org (updated Sun Jun 21, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
739999230,5cyclictest0-21swapper/107:11:581
739999230,20cyclictest0-21swapper/110:02:331
739899230,3cyclictest0-21swapper/011:45:470
7399992217,2cyclictest29881-21kernelversion08:45:171
739999214,2cyclictest25581-21ldconfig.real08:40:001
7399992114,3cyclictest0-21swapper/109:28:131
739899214,3cyclictest0-21swapper/008:08:190
740499204,15cyclictest0-21swapper/208:35:172
740499203,2cyclictest15749-21nvmesmart_nvme008:20:212
739999200,5cyclictest399-20systemd-journal12:20:081
739999200,5cyclictest399-20systemd-journal12:20:071
739999200,1cyclictest0-21swapper/111:26:341
739899202,17cyclictest0-21swapper/011:44:200
7398992018,1cyclictest9-21ksoftirqd/009:25:110
7398992018,1cyclictest9-21ksoftirqd/007:29:040
739899201,4cyclictest10167-21grep08:10:180
7398992012,4cyclictest0-21swapper/011:12:080
739899201,16cyclictest7799-21sort09:00:230
739899200,5cyclictest0-21swapper/008:35:190
739899200,18cyclictest0-21swapper/011:18:330
740499193,15cyclictest28-21ksoftirqd/209:21:092
7404991917,1cyclictest0-21swapper/211:43:492
7404991914,2cyclictest3976-21H222:10:212
7404991914,2cyclictest3976-21H222:10:212
740499190,2cyclictest3989-21H222:10:212
740499190,2cyclictest3985-21H222:10:212
740499190,16cyclictest4099-21H222:10:212
739999192,16cyclictest15896-21ntp_offset09:15:171
7399991914,3cyclictest0-21swapper/110:47:021
739999190,2cyclictest3989-21H222:10:211
739999190,18cyclictest3976-21H222:10:211
739999190,16cyclictest3976-21H222:10:211
739999190,16cyclictest1027-21wpa_supplicant09:36:551
7398991917,1cyclictest0-21swapper/010:51:570
7398991917,1cyclictest0-21swapper/008:41:100
7398991916,2cyclictest3991-21H222:10:210
739899190,16cyclictest4099-21H222:10:210
739899190,16cyclictest3989-21H222:10:210
7404991816,1cyclictest0-21swapper/210:09:222
7404991814,3cyclictest3991-21H222:10:212
7404991814,3cyclictest3976-21H222:10:212
7404991814,2cyclictest3989-21H222:10:212
7404991814,2cyclictest3979-21H222:10:212
740499180,2cyclictest4099-21H222:10:212
740499180,2cyclictest3989-21H222:10:212
740499180,2cyclictest3983-21H222:10:212
740499180,17cyclictest5953-21cpuspeed_turbos10:55:142
740499180,17cyclictest3983-21H222:10:212
740499180,17cyclictest3983-21H222:10:212
740499180,16cyclictest3989-21H222:10:212
740499180,16cyclictest3983-21H222:10:212
740499180,16cyclictest3979-21H222:10:212
740499180,15cyclictest3985-21H222:10:212
739999186,11cyclictest0-21swapper/109:40:041
739999182,15cyclictest5369-21if_enp1s009:55:141
739999182,15cyclictest28806-21smartctl12:30:191
7399991816,1cyclictest3983-21H222:10:211
7399991816,1cyclictest21-21ksoftirqd/110:36:581
7399991816,1cyclictest0-21swapper/112:05:151
7399991814,3cyclictest961-21cron11:45:001
7399991814,3cyclictest886-21systemctl08:50:201
7399991814,3cyclictest3983-21H222:10:211
7399991814,3cyclictest0-21swapper/111:56:541
7399991814,3cyclictest0-21swapper/111:56:541
739999181,2cyclictest28148-21cat07:45:151
739999180,3cyclictest3985-21H222:10:211
739999180,2cyclictest4099-21H222:10:211
739999180,2cyclictest4099-21H222:10:211
739999180,2cyclictest3985-21H222:10:211
739999180,2cyclictest3985-21H222:10:211
739999180,17cyclictest0-21swapper/108:21:151
739999180,15cyclictest3976-21H222:10:211
739999180,15cyclictest3976-21H222:10:211
7398991816,1cyclictest9-21ksoftirqd/009:31:220
7398991816,1cyclictest0-21swapper/008:58:320
7398991816,1cyclictest0-21swapper/008:58:320
7398991815,2cyclictest26970-21cut09:35:190
7398991815,2cyclictest0-21swapper/007:40:140
7398991814,3cyclictest3985-21H222:10:210
7398991814,3cyclictest0-21swapper/012:25:010
7398991814,3cyclictest0-21swapper/012:25:010
7398991813,2cyclictest3989-21H222:10:210
739899181,2cyclictest11356-21grep10:05:200
739899181,16cyclictest13678-21seq08:17:290
739899180,2cyclictest3991-21H222:10:210
739899180,2cyclictest3987-21H222:10:210
739899180,2cyclictest22834-21switchtime10:25:200
739899180,17cyclictest3989-21H222:10:210
739899180,17cyclictest3983-21H222:10:210
739899180,17cyclictest3976-21H222:10:210
739899180,15cyclictest3985-21H222:10:210
739899180,15cyclictest3979-21H222:10:210
7404991715,1cyclictest28-21ksoftirqd/211:15:182
7404991715,1cyclictest0-21swapper/212:27:112
7404991715,1cyclictest0-21swapper/211:10:132
7404991714,2cyclictest4035-21H222:10:212
7404991714,2cyclictest3979-21H222:10:212
7404991714,2cyclictest3976-21H222:10:212
7404991714,2cyclictest26964-21sed11:30:192
7404991714,2cyclictest22000-21timerwakeupswit08:30:222
7404991714,2cyclictest20473-21expr09:25:142
7404991714,2cyclictest18777-21/usr/sbin/munin12:15:192
7404991714,2cyclictest12074-21sed12:00:212
740499171,15cyclictest28-21ksoftirqd/210:33:072
740499171,15cyclictest0-21swapper/211:58:192
740499171,15cyclictest0-21swapper/211:58:182
740499170,2cyclictest914-21sendmail_mailtr08:50:202
740499170,2cyclictest4099-21H222:10:212
740499170,2cyclictest4099-21H222:10:212
740499170,2cyclictest3983-21H222:10:212
740499170,2cyclictest3976-21H222:10:212
740499170,2cyclictest31302-21idleruntime-cro08:50:002
740499170,2cyclictest30510-21wc10:40:172
740499170,2cyclictest27000-21expr10:35:142
740499170,2cyclictest16900-21latency07:25:162
740499170,2cyclictest1622-21date11:45:022
740499170,2cyclictest16099-21systemctl09:15:192
740499170,2cyclictest1079-21cups-browsed10:20:202
740499170,16cyclictest6449-21timerwakeupswit09:55:192
740499170,16cyclictest4784-21timerandwakeup10:50:212
740499170,16cyclictest4099-21H222:10:212
740499170,16cyclictest4035-21H222:10:212
740499170,16cyclictest3989-21H222:10:212
740499170,16cyclictest28764-21ntpq12:30:192
740499170,16cyclictest16777-21http_loadtime12:10:152
740499170,16cyclictest1092-21nfsd410:45:182
740499170,16cyclictest10095-21nfsd409:05:192
740499170,15cyclictest3989-21H222:10:212
740499170,15cyclictest3981-21H222:10:212
739999172,1cyclictest22035-21if_err_lxdbr010:25:141
7399991715,1cyclictest0-21swapper/108:40:141
7399991714,2cyclictest9344-21expr09:05:141
7399991714,2cyclictest7059-21chrt11:52:421
7399991714,2cyclictest6662-21ls09:00:141
7399991714,2cyclictest4099-21H222:10:211
7399991714,2cyclictest21851-21expr07:35:141
7399991714,2cyclictest19754-21grep09:25:001
7399991714,2cyclictest19688-21grep10:20:181
7399991714,2cyclictest18766-21ntp_kernel_pll_08:25:191
7399991714,2cyclictest1523-21lxd11:00:441
7399991713,3cyclictest3976-21H222:10:211
739999170,2cyclictest6428-21hddtemp_smartct10:55:161
739999170,2cyclictest20983-21perf07:35:011
739999170,2cyclictest2007-21systemd-journal07:18:151
739999170,2cyclictest17291-21grep11:15:131
739999170,16cyclictest8855-21apache_volume08:10:121
739999170,16cyclictest3991-21H222:10:211
739999170,16cyclictest3991-21H222:10:211
739999170,16cyclictest3985-21H222:10:211
739999170,16cyclictest3976-21H222:10:211
739999170,16cyclictest3912-21ls08:00:161
739999170,16cyclictest31654-21expr09:45:151
739999170,16cyclictest30939-21netstat07:50:201
739999170,16cyclictest30075-21expr10:40:151
739999170,16cyclictest20271-21cut08:30:131
739999170,16cyclictest15620-21/usr/sbin/munin10:15:121
739999170,16cyclictest13634-21expr07:20:131
739999170,16cyclictest11741-21grep08:15:141
739999170,15cyclictest3989-21H222:10:211
739999170,15cyclictest3979-21H222:10:211
7398991715,1cyclictest0-21swapper/007:21:090
7398991714,2cyclictest9869-21ntp_states11:00:200
7398991714,2cyclictest4973-21expr09:55:130
7398991714,2cyclictest3991-21H222:10:210
7398991714,2cyclictest3987-21H222:10:210
7398991714,2cyclictest31163-21memory12:35:170
7398991714,2cyclictest28944-21apache_accesses08:45:110
7398991714,2cyclictest17938-21expr08:25:130
7398991713,3cyclictest3991-21H222:10:210
7398991713,3cyclictest3991-21H222:10:210
739899170,2cyclictest4130-21interrupts08:00:180
739899170,2cyclictest4099-21H222:10:210
739899170,2cyclictest4035-21H222:10:210
739899170,2cyclictest3991-21H222:10:210
739899170,2cyclictest3985-21H222:10:210
739899170,2cyclictest1377-21lxd11:20:440
739899170,2cyclictest0-21swapper/012:00:170
739899170,16cyclictest993-21dbus-daemon07:50:220
739899170,16cyclictest948-21/usr/sbin/munin10:45:190
739899170,16cyclictest4099-21H222:10:210
739899170,16cyclictest4099-21H222:10:210
739899170,16cyclictest4035-21H222:10:210
739899170,16cyclictest32628-21irqstats08:50:170
739899170,16cyclictest31069-21apache_accesses09:45:110
739899170,16cyclictest27852-21nfsd410:35:170
739899170,16cyclictest23197-21timerandwakeup07:35:230
739899170,16cyclictest16200-21cat10:15:140
739899170,16cyclictest15947-21munin-run12:10:010
739899170,16cyclictest11105-21fschecks_time07:15:160
739899170,16cyclictest1079-21cups-browsed11:50:210
739899170,16cyclictest10280-21ntp_states09:05:190
739899170,15cyclictest4035-21H222:10:210
7404991615,1cyclictest0-21swapper/207:30:182
7404991614,1cyclictest0-21swapper/211:50:112
7404991613,2cyclictest271rcuc/212:05:132
740499160,15cyclictest32517-21cpu07:55:112
740499160,15cyclictest2725-21gnome-shell11:00:092
740499160,15cyclictest11582-21/usr/sbin/munin11:05:132
740499160,15cyclictest0-21swapper/211:20:112
740499160,15cyclictest0-21swapper/208:00:052
739999160,1cyclictest0-21swapper/107:25:151
739999160,15cyclictest839-21if_eno107:55:151
7398991614,1cyclictest0-21swapper/007:55:120
7398991613,2cyclictest28662-21ls11:35:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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