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2026-08-14 - 01:00
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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 Thu Aug 13, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3276799280,23cyclictest0-21swapper/108:33:311
3276799264,4cyclictest0-21swapper/108:13:531
32767992624,2cyclictest0-21swapper/108:20:151
30699241,5cyclictest0-21swapper/209:23:382
3276799230,22cyclictest4099-21H222:10:211
3276799230,22cyclictest32548-21dpkg11:51:151
3276799230,16cyclictest6010-21taskset12:00:311
32767992216,5cyclictest0-21swapper/109:24:021
32767992214,7cyclictest0-21swapper/109:40:181
3276799221,20cyclictest27372-21nfsd410:45:171
3276799220,2cyclictest23642-21sed08:45:161
3276799220,2cyclictest21635-21switchtime08:40:211
3276799220,2cyclictest19300-21sort12:25:161
3276799220,2cyclictest17976-21sed11:25:211
3276799220,2cyclictest15972-21cut11:25:011
3276799220,21cyclictest9861-21ls10:15:141
3276799220,21cyclictest9175-21strings11:10:171
3276799220,21cyclictest20298-21munin-run10:35:011
3276799220,21cyclictest1918-21kernelversion11:55:161
3276799220,21cyclictest15651-21wc07:35:161
3276799220,1cyclictest0-21swapper/112:05:131
3276799220,1cyclictest0-21swapper/111:45:111
3276799220,1cyclictest0-21swapper/111:05:121
3276799220,1cyclictest0-21swapper/109:00:161
3276799220,1cyclictest0-21swapper/108:55:181
3276799220,16cyclictest5125-21date08:15:011
3276799220,16cyclictest22656-21chrt10:37:421
3276799220,15cyclictest0-21swapper/109:55:131
32767992114,6cyclictest16777-21switchtime10:25:211
32767992114,6cyclictest16777-21switchtime10:25:201
32767992113,7cyclictest14281-21munin-run07:35:011
32767992113,7cyclictest13611-21nfsd412:15:191
3276799211,2cyclictest31661-21expr08:05:121
3276799211,1cyclictest0-21swapper/110:55:141
3276799210,3cyclictest25947-21ntpq11:40:191
3276799210,3cyclictest19351-21cat09:35:141
3276799210,2cyclictest25134-21sed10:40:221
3276799210,2cyclictest25130-21ntp_offset12:35:191
3276799210,2cyclictest23574-21munin-run12:35:001
3276799210,2cyclictest18434-21if_enp1s007:40:171
3276799210,2cyclictest1642-21missed_timers10:00:181
3276799210,2cyclictest1642-21missed_timers10:00:181
3276799210,2cyclictest12886-21expr10:20:141
3276799210,20cyclictest0-21swapper/112:20:021
3276799210,20cyclictest0-21swapper/108:50:451
3276799210,20cyclictest0-21swapper/108:36:531
3276799210,1cyclictest40812chrt09:06:431
3276799210,1cyclictest3450-21gsd-color12:10:181
3276799210,1cyclictest0-21swapper/111:30:211
3276799210,1cyclictest0-21swapper/111:15:171
3276799210,1cyclictest0-21swapper/110:10:141
3276799210,1cyclictest0-21swapper/109:30:001
3276799210,1cyclictest0-21swapper/107:50:141
3276799210,16cyclictest7729-21awk07:20:181
3276799210,16cyclictest18523-21apt-config09:35:011
306992115,5cyclictest0-21swapper/211:20:182
306992114,6cyclictest24991-21latency_hist08:50:002
32767992014,5cyclictest0-21swapper/107:20:001
32767992013,6cyclictest0-21swapper/108:25:181
32767992011,5cyclictest0-21swapper/110:50:201
3276799200,2cyclictest4464-21awk10:05:171
3276799200,2cyclictest30224-21ls08:00:221
3276799200,2cyclictest25204-21df09:45:131
3276799200,1cyclictest0-21swapper/111:35:121
3276799200,1cyclictest0-21swapper/111:00:181
3276799200,1cyclictest0-21swapper/109:50:211
3276799200,1cyclictest0-21swapper/109:15:141
3276799200,1cyclictest0-21swapper/107:55:141
3276799200,19cyclictest0-21swapper/109:10:101
3276799200,18cyclictest0-21swapper/107:45:201
3276799200,18cyclictest0-21swapper/107:25:181
32763992018,1cyclictest1706-21date08:10:020
32763992017,2cyclictest23849-21tr12:35:130
32763992016,3cyclictest0-21swapper/011:55:180
3276399200,15cyclictest0-21swapper/012:02:260
3276399200,15cyclictest0-21swapper/011:00:160
30699200,19cyclictest19190-21cpuspeed_turbos09:35:132
3276399193,9cyclictest8902-21sleep10:15:010
3276399192,2cyclictest16940-21apt-config08:35:010
32763991917,1cyclictest9-21ksoftirqd/012:30:350
32763991914,3cyclictest1829-21systemd-journal11:48:140
3276399190,18cyclictest3989-21H222:10:210
3276399190,18cyclictest0-21swapper/011:51:160
306991917,1cyclictest0-21swapper/211:40:432
306991917,1cyclictest0-21swapper/207:51:112
30699190,18cyclictest455-21plymouthd12:35:162
3276399183,14cyclictest0-21swapper/012:16:020
3276399182,15cyclictest3987-21H222:10:210
3276399182,15cyclictest0-21swapper/012:11:160
3276399182,15cyclictest0-21swapper/007:33:320
32763991816,2cyclictest9-21ksoftirqd/008:25:010
32763991816,1cyclictest23579-21cat09:40:230
32763991816,1cyclictest144742chrt10:22:430
32763991816,1cyclictest0-21swapper/012:25:130
3276399181,2cyclictest15688-21grep12:20:130
3276399181,16cyclictest101rcuc/011:00:010
32763991811,0cyclictest0-21swapper/007:44:390
3276399180,1cyclictest0-21swapper/008:55:150
3276399180,17cyclictest3979-21H222:10:210
30699182,15cyclictest32691-21grep09:00:192
30699182,15cyclictest25972-21cpuspeed_turbos07:55:132
30699182,15cyclictest14910-21cat09:25:222
306991816,1cyclictest29631-21missed_timers08:55:172
306991816,1cyclictest0-21swapper/211:50:222
306991815,2cyclictest9596-21cut12:10:002
306991815,2cyclictest3991-21H222:10:212
306991815,2cyclictest3979-21H222:10:212
306991815,2cyclictest3040-21nfsd409:05:162
306991815,2cyclictest22701-21cat09:40:162
306991814,3cyclictest3983-21H222:10:212
306991814,3cyclictest3983-21H222:10:212
30699181,2cyclictest17978-21chrt09:32:322
30699180,2cyclictest3991-21H222:10:212
30699180,2cyclictest3983-21H222:10:212
30699180,2cyclictest3981-21H222:10:212
30699180,2cyclictest17168-21sendmail_mailtr12:20:202
30699180,17cyclictest7455-21phpquery11:09:012
30699180,17cyclictest3983-21H222:10:212
30699180,16cyclictest6644-21tr10:10:142
30699180,16cyclictest4035-21H222:10:212
3276399172,1cyclictest9-21ksoftirqd/008:14:580
3276399172,1cyclictest101rcuc/009:05:150
32763991715,1cyclictest9-21ksoftirqd/010:25:180
32763991715,1cyclictest9-21ksoftirqd/010:25:180
32763991715,1cyclictest9-21ksoftirqd/007:45:130
32763991715,1cyclictest101rcuc/011:32:390
32763991715,1cyclictest101rcuc/009:25:020
32763991715,1cyclictest101rcuc/007:35:150
32763991715,1cyclictest0-21swapper/008:30:220
32763991715,1cyclictest0-21swapper/008:26:420
32763991714,2cyclictest7995-21nfsd412:05:180
32763991714,2cyclictest455-21plymouthd09:45:150
32763991714,2cyclictest3981-21H222:10:210
32763991714,2cyclictest3976-21H222:10:210
32763991714,2cyclictest18187-21perf09:35:000
32763991714,2cyclictest17912-21wc10:30:130
32763991714,2cyclictest11268-21expr11:15:130
32763991713,3cyclictest26113-21postgres08:50:120
3276399171,15cyclictest9-21ksoftirqd/008:40:210
3276399171,15cyclictest10116-21cut09:20:000
3276399171,15cyclictest0-21swapper/009:05:010
3276399170,2cyclictest934-21cat07:10:130
3276399170,2cyclictest3981-21H222:10:210
3276399170,2cyclictest28715-21expr08:00:140
3276399170,16cyclictest9916-21fschecks_time07:25:140
3276399170,16cyclictest7891-21awk07:20:180
3276399170,16cyclictest6354-21latency08:15:160
3276399170,16cyclictest4099-21H222:10:210
3276399170,16cyclictest3987-21H222:10:210
3276399170,16cyclictest3983-21H222:10:210
3276399170,16cyclictest20594-21systemctl09:35:210
3276399170,16cyclictest15290-21sed11:20:200
3276399170,16cyclictest1035-21thermald09:50:190
3276399170,15cyclictest0-21swapper/011:35:170
306991715,1cyclictest0-21swapper/210:15:202
306991714,2cyclictest891-21apache_processe11:55:112
306991714,2cyclictest27327-21/usr/sbin/munin09:50:142
306991714,2cyclictest27227-21cat10:45:172
306991714,2cyclictest20878-21expr07:45:132
306991714,2cyclictest17892-21sed11:25:212
306991714,1cyclictest0-21swapper/207:15:172
30699171,15cyclictest0-21swapper/208:40:172
306991711,5cyclictest0-21swapper/208:22:042
30699170,3cyclictest23132-21proc_pri11:35:192
30699170,2cyclictest4623-21python308:15:012
30699170,2cyclictest30951-21if_lxdbr009:55:152
30699170,2cyclictest20887-21vmstat11:30:202
30699170,2cyclictest19124-21grep10:30:192
30699170,2cyclictest18815-21expr12:25:132
30699170,2cyclictest13641-21/usr/sbin/munin07:30:212
30699170,1cyclictest3985-21H222:10:212
30699170,16cyclictest8433-21iwlist09:15:162
30699170,16cyclictest826-21apt-get08:05:302
30699170,16cyclictest455-21plymouthd08:50:122
30699170,16cyclictest4035-21H222:10:212
30699170,16cyclictest4035-21H222:10:212
30699170,16cyclictest3991-21H222:10:212
30699170,16cyclictest3981-21H222:10:212
30699170,16cyclictest3149-21latency11:00:172
30699170,16cyclictest22064-21memory12:30:162
30699170,16cyclictest18309-21awk08:35:172
30699170,16cyclictest14505-21snapd10:42:572
30699170,16cyclictest1351-21lxd07:36:482
30699170,16cyclictest1338-21grep07:10:132
30699170,15cyclictest3976-21H222:10:212
32763991615,1cyclictest9-21ksoftirqd/009:55:130
32763991615,0cyclictest101rcuc/009:10:110
32763991614,1cyclictest9-21ksoftirqd/009:26:180
32763991614,1cyclictest25796-21apache_volume07:55:110
32763991614,1cyclictest0-21swapper/011:05:100
32763991614,1cyclictest0-21swapper/010:05:060
32763991614,1cyclictest0-21swapper/007:50:220
3276399160,15cyclictest101rcuc/010:00:140
3276399160,15cyclictest101rcuc/010:00:130
3276399160,15cyclictest0-21swapper/007:15:120
306991614,1cyclictest0-21swapper/212:10:132
306991614,1cyclictest0-21swapper/208:00:172
306991613,2cyclictest6285-21ntp_kernel_pll_09:10:182
306991613,2cyclictest4035-21H222:10:212
306991613,2cyclictest3358-21/usr/sbin/munin10:05:132
30699160,15cyclictest5371-21apache_accesses08:15:112
30699160,15cyclictest0-21swapper/210:55:142
30699160,15cyclictest0-21swapper/207:40:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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