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2026-09-28 - 02:28
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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 Sep 27, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3008399273,19cyclictest26356-21latency_hist09:55:010
3008999230,5cyclictest0-21swapper/209:23:102
3008999220,5cyclictest0-21swapper/210:33:182
3008399225,2cyclictest3981-21H222:10:210
3008399223,18cyclictest0-21swapper/007:38:560
3008399220,21cyclictest870-21systemd-logind11:48:520
3008499214,2cyclictest3985-21H222:10:211
3008399210,19cyclictest3983-21H222:10:210
30089992017,2cyclictest4035-21H222:10:212
30089992014,5cyclictest0-21swapper/207:48:262
3008999200,19cyclictest843-21systemd-network08:07:102
3008499203,2cyclictest3976-21H222:10:211
3008499200,16cyclictest4099-21H222:10:211
3008399200,17cyclictest3983-21H222:10:210
3008399200,16cyclictest3991-21H222:10:210
30089991916,2cyclictest8802-21cat10:20:012
30089991916,2cyclictest7245-21idleruntime12:05:162
30089991916,2cyclictest24683-21wc07:55:362
30089991914,3cyclictest0-21swapper/209:36:312
3008999191,2cyclictest0-21swapper/209:35:002
3008999190,18cyclictest0-21swapper/212:23:552
3008999190,16cyclictest4099-21H222:10:212
3008999190,16cyclictest3979-21H222:10:212
30084991917,1cyclictest0-21swapper/110:09:251
30084991916,2cyclictest3991-21H222:10:211
30084991915,3cyclictest0-21swapper/109:30:111
30084991914,3cyclictest0-21swapper/109:04:271
3008499190,1cyclictest0-21swapper/110:30:121
3008499190,16cyclictest3991-21H222:10:211
3008499190,16cyclictest3987-21H222:10:211
3008499190,16cyclictest3987-21H222:10:211
3008499190,16cyclictest3979-21H222:10:211
3008499190,16cyclictest3979-21H222:10:211
30083991918,0cyclictest0-21swapper/012:25:050
30083991915,3cyclictest0-21swapper/009:45:170
3008399190,18cyclictest4035-21H222:10:210
3008399190,16cyclictest4099-21H222:10:210
3008399190,16cyclictest3985-21H222:10:210
3008399190,16cyclictest10878-21ls08:30:010
30089991816,1cyclictest3976-21H222:10:212
30089991815,2cyclictest3991-21H222:10:212
30089991815,2cyclictest3983-21H222:10:212
30089991815,2cyclictest24079-21nfsd410:45:182
30089991815,2cyclictest1611-21kernelversion11:55:172
30089991814,3cyclictest3987-21H222:10:212
30089991814,3cyclictest3983-21H222:10:212
30089991814,3cyclictest1375-21munin-node08:31:142
3008999181,16cyclictest993-21dbus-daemon11:37:102
3008999181,16cyclictest1624-21cpuspeed_turbos11:05:152
3008999180,3cyclictest3976-21H222:10:212
3008999180,3cyclictest3976-21H222:10:212
3008999180,2cyclictest4099-21H222:10:212
3008999180,2cyclictest4099-21H222:10:212
3008999180,2cyclictest3991-21H222:10:212
3008999180,2cyclictest3989-21H222:10:212
3008999180,2cyclictest3979-21H222:10:212
3008999180,2cyclictest3976-21H222:10:212
3008999180,2cyclictest3976-21H222:10:212
3008999180,17cyclictest4035-21H222:10:212
3008999180,17cyclictest3979-21H222:10:212
3008999180,17cyclictest1516-21lxd12:38:432
3008999180,17cyclictest10995-21awk10:20:202
3008999180,16cyclictest4035-21H222:10:212
3008999180,15cyclictest3981-21H222:10:212
3008499182,2cyclictest2850-21gmain07:29:011
3008499182,2cyclictest2850-21gmain07:29:011
30084991816,1cyclictest3985-21H222:10:211
30084991816,1cyclictest11120-21timerandwakeup12:10:251
30084991815,2cyclictest19814-21nfsd409:40:191
30084991815,2cyclictest15256-21nfsd408:35:171
30084991814,3cyclictest3989-21H222:10:211
30084991814,3cyclictest3987-21H222:10:211
30084991814,3cyclictest21383-21grep10:40:161
30084991814,3cyclictest0-21swapper/112:35:381
30084991813,2cyclictest3989-21H222:10:211
3008499181,2cyclictest3983-21H222:10:211
3008499180,17cyclictest3983-21H222:10:211
3008499180,17cyclictest3979-21H222:10:211
3008499180,17cyclictest3976-21H222:10:211
3008499180,17cyclictest3976-21H222:10:211
3008499180,17cyclictest0-21swapper/112:25:141
3008499180,16cyclictest3976-21H222:10:211
3008499180,16cyclictest3976-21H222:10:211
3008499180,15cyclictest3989-21H222:10:211
30083991816,1cyclictest9-21ksoftirqd/007:10:080
30083991816,1cyclictest120012chrt09:28:240
30083991815,2cyclictest3985-21H222:10:210
30083991813,2cyclictest4099-21H222:10:210
30083991813,2cyclictest3985-21H222:10:210
3008399181,16cyclictest399-20systemd-journal11:37:360
3008399181,16cyclictest24105-21nfsd410:45:180
3008399180,3cyclictest3985-21H222:10:210
3008399180,2cyclictest3985-21H222:10:210
3008399180,1cyclictest3979-21H222:10:210
3008399180,17cyclictest3979-21H222:10:210
3008399180,17cyclictest0-21swapper/011:02:540
3008399180,16cyclictest9015-21python307:30:010
3008399180,16cyclictest9015-21python307:30:010
3008399180,15cyclictest3976-21H222:10:210
3008399180,15cyclictest111rcu_preempt11:50:210
30089991715,1cyclictest28-21ksoftirqd/208:20:072
30089991715,1cyclictest0-21swapper/209:46:132
30089991715,1cyclictest0-21swapper/208:35:172
30089991715,1cyclictest0-21swapper/207:25:122
30089991715,1cyclictest0-21swapper/207:25:122
30089991714,2cyclictest7426-21apache_processe11:15:112
30089991714,2cyclictest4035-21H222:10:212
30089991714,2cyclictest3987-21H222:10:212
30089991714,2cyclictest3985-21H222:10:212
30089991714,2cyclictest3985-21H222:10:212
30089991714,2cyclictest3981-21H222:10:212
30089991713,3cyclictest15892-21snapd10:35:592
3008999171,15cyclictest0-21swapper/210:50:182
3008999170,2cyclictest9498-21cpuspeed_turbos12:10:182
3008999170,2cyclictest4099-21H222:10:212
3008999170,2cyclictest3989-21H222:10:212
3008999170,2cyclictest28616-21fschecks_count09:00:152
3008999170,2cyclictest21052-21kernelversion10:40:152
3008999170,1cyclictest0-21swapper/207:20:582
3008999170,16cyclictest3991-21H222:10:212
3008999170,16cyclictest3987-21H222:10:212
3008999170,16cyclictest3981-21H222:10:212
3008999170,16cyclictest3981-21H222:10:212
3008999170,16cyclictest3976-21H222:10:212
3008999170,16cyclictest30601-21sed10:00:172
3008999170,16cyclictest25579-21pzem_power09:50:192
3008999170,16cyclictest11392-21wc07:30:212
30084991716,1cyclictest0-21swapper/110:58:301
30084991715,1cyclictest3981-21H222:10:211
30084991715,1cyclictest0-21swapper/110:10:161
30084991715,1cyclictest0-21swapper/109:50:201
30084991715,1cyclictest0-21swapper/109:15:181
30084991714,2cyclictest7277-21ls08:20:221
30084991714,2cyclictest4099-21H222:10:211
30084991714,2cyclictest4035-21H222:10:211
30084991714,2cyclictest4035-21H222:10:211
30084991714,2cyclictest3991-21H222:10:211
30084991714,2cyclictest3989-21H222:10:211
30084991714,2cyclictest3976-21H222:10:211
30084991714,2cyclictest28004-21lxd11:52:431
30084991714,2cyclictest2771-21expr08:15:141
30084991714,2cyclictest18631-21seq11:35:141
30084991714,2cyclictest14263-21grep11:25:171
30084991714,2cyclictest1359-21ls08:10:211
3008499171,15cyclictest0-21swapper/112:05:171
3008499170,2cyclictest8555-21chrt10:19:271
3008499170,2cyclictest3981-21H222:10:211
3008499170,2cyclictest3981-21H222:10:211
3008499170,2cyclictest3976-21H222:10:211
3008499170,2cyclictest2967-21sh07:17:011
3008499170,2cyclictest1332-21fschecks_time11:55:141
3008499170,2cyclictest12968-21fschecks_time12:15:131
3008499170,16cyclictest4099-21H222:10:211
3008499170,16cyclictest3987-21H222:10:211
3008499170,16cyclictest3987-21H222:10:211
3008499170,16cyclictest3985-21H222:10:211
3008499170,16cyclictest31500-21if_eno109:05:161
3008499170,16cyclictest2234-21grep09:10:181
3008499170,16cyclictest11366-21perf10:25:001
30083991716,1cyclictest8139-21memory09:20:170
30083991715,1cyclictest0-21swapper/008:55:210
30083991715,1cyclictest0-21swapper/008:35:160
30083991714,2cyclictest7591-21cut11:15:130
30083991714,2cyclictest7006-21pzem_current08:20:200
30083991714,2cyclictest25744-21pzem_energy12:35:210
30083991714,2cyclictest17001-21awk09:35:180
30083991714,2cyclictest14733-21cpuspeed_turbos10:30:120
30083991713,3cyclictest4035-21H222:10:210
3008399170,2cyclictest4099-21H222:10:210
3008399170,2cyclictest2872-21systemd-logind10:18:510
3008399170,2cyclictest14724-21python312:20:000
3008399170,2cyclictest10452-21perl07:30:150
3008399170,2cyclictest1035-21thermald12:13:490
3008399170,16cyclictest4099-21H222:10:210
3008399170,16cyclictest3991-21H222:10:210
3008399170,16cyclictest3991-21H222:10:210
3008399170,16cyclictest3987-21H222:10:210
3008399170,16cyclictest3976-21H222:10:210
3008399170,16cyclictest3416-21qmgr07:59:480
3008399170,16cyclictest27422-21fschecks_time09:55:140
3008399170,16cyclictest2069-21systemd-udevd08:10:520
3008399170,16cyclictest11395-21netstat11:20:190
3008399170,16cyclictest0-21swapper/009:41:000
3008399170,16cyclictest0-21swapper/008:15:150
3008399170,15cyclictest4099-21H222:10:210
3008399170,15cyclictest0-21swapper/008:32:300
30089991614,1cyclictest3044-21expr10:10:132
3008999160,1cyclictest0-21swapper/210:25:112
3008999160,15cyclictest974-21ntp_kernel_pll_08:10:192
3008499160,1cyclictest0-21swapper/108:00:121
3008499160,15cyclictest0-21swapper/107:30:021
30083991614,1cyclictest1304-21ntpq10:05:200
30083991614,1cyclictest0-21swapper/010:35:100
30083991614,1cyclictest0-21swapper/008:05:110
30083991614,1cyclictest0-21swapper/007:50:130
30083991613,2cyclictest18690-21expr07:45:130
3008399160,2cyclictest2166-21/usr/sbin/munin11:55:200
3008399160,1cyclictest3979-21H222:10:210
3008399160,15cyclictest1829-21systemd-journal11:05:040
3008399160,15cyclictest0-21swapper/010:20:340
3008399150,1cyclictest3450-21gsd-color08:00:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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