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2026-06-16 - 07:14
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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 Tue Jun 16, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28126992626,0cyclictest0-21swapper/222:15:182
2812699230,5cyclictest0-21swapper/223:25:202
28124992322,1cyclictest13358-21mii-tool00:25:140
2812599220,22cyclictest0-21swapper/123:35:101
2812499220,21cyclictest0-21swapper/022:47:150
28126992112,5cyclictest0-21swapper/220:05:012
2812599214,16cyclictest21-21ksoftirqd/122:15:191
2812599210,20cyclictest843-21systemd-network23:49:501
2812499210,3cyclictest0-21swapper/020:21:300
2812599200,18cyclictest18664-21latency_hist21:45:011
2812599200,18cyclictest18664-21latency_hist21:45:011
28124992017,2cyclictest30740-21latency_hist19:15:010
2812499200,17cyclictest0-21swapper/021:48:360
2812499200,16cyclictest0-21swapper/021:42:430
2812499200,16cyclictest0-21swapper/021:42:430
2812699194,1cyclictest0-21swapper/222:43:322
2812699192,2cyclictest3979-21H222:10:212
2812699192,1cyclictest0-21swapper/219:19:482
2812699191,16cyclictest0-21swapper/223:55:002
2812699190,16cyclictest3987-21H222:10:212
2812699190,15cyclictest0-21swapper/222:45:242
28125991917,1cyclictest21-21ksoftirqd/120:35:221
2812599190,16cyclictest3981-21H222:10:211
2812599190,16cyclictest3976-21H222:10:211
2812499193,15cyclictest4849-21cstates21:20:130
28124991917,1cyclictest3989-21H222:10:210
28124991917,1cyclictest3989-21H222:10:210
28124991917,1cyclictest32392-21awk21:10:180
28124991917,1cyclictest0-21swapper/021:18:000
28124991916,2cyclictest5275-21ls22:15:200
28124991916,2cyclictest1981-21ntpq00:05:180
28124991916,2cyclictest10563-21idleruntime00:20:150
28124991915,2cyclictest0-21swapper/022:25:140
28124991914,3cyclictest0-21swapper/021:35:140
2812499190,2cyclictest3979-21H222:10:210
2812499190,18cyclictest0-21swapper/022:55:230
2812499190,16cyclictest3985-21H222:10:210
2812499190,16cyclictest3981-21H222:10:210
2812699182,15cyclictest0-21swapper/220:05:142
28126991816,1cyclictest0-21swapper/222:57:342
28126991816,1cyclictest0-21swapper/220:35:192
28126991815,2cyclictest3985-21H222:10:212
28126991815,2cyclictest3981-21H222:10:212
28126991814,3cyclictest3987-21H222:10:212
28126991814,3cyclictest1079-21cups-browsed21:25:212
2812699181,2cyclictest8347-21chrt22:23:422
2812699181,2cyclictest4099-21H222:10:212
2812699181,1cyclictest32517-21nfsd423:05:192
2812699180,2cyclictest3985-21H222:10:212
2812699180,2cyclictest3981-21H222:10:212
2812699180,2cyclictest3979-21H222:10:212
2812699180,2cyclictest3979-21H222:10:212
2812699180,17cyclictest3979-21H222:10:212
2812699180,16cyclictest3983-21H222:10:212
2812599182,15cyclictest21-21ksoftirqd/122:00:141
2812599182,15cyclictest21-21ksoftirqd/121:30:151
28125991817,0cyclictest0-21swapper/121:08:321
28125991816,1cyclictest21-21ksoftirqd/120:10:021
28125991813,2cyclictest3981-21H222:10:211
28125991813,2cyclictest3979-21H222:10:211
2812599181,1cyclictest111rcu_preempt19:52:481
2812599181,16cyclictest8558-21nfsd421:25:181
2812599181,16cyclictest17368-21nfsd419:45:171
2812599180,1cyclictest0-21swapper/120:14:341
2812599180,0cyclictest0-21swapper/122:20:171
2812499182,2cyclictest25174-21mii-tool21:55:150
2812499182,15cyclictest0-21swapper/023:35:150
28124991816,1cyclictest9-21ksoftirqd/023:56:460
28124991816,1cyclictest0-21swapper/022:15:010
28124991816,1cyclictest0-21swapper/021:30:010
28124991815,2cyclictest779-21chrt19:16:390
28124991815,2cyclictest20029-21cat23:40:140
28124991814,3cyclictest4035-21H222:10:210
28124991814,3cyclictest25332-21anvil22:54:190
28124991814,3cyclictest11871-21nvmesmart_nvme021:30:190
28124991814,3cyclictest0-21swapper/019:58:470
28124991814,3cyclictest0-21swapper/019:50:060
28124991814,3cyclictest0-21swapper/019:40:140
2812499181,2cyclictest32228-21kernelversion23:05:180
28124991812,1cyclictest0-21swapper/022:40:150
2812499181,16cyclictest5358-21hddtemp_smartct19:25:160
2812499181,16cyclictest25775-21expr21:00:130
2812499181,16cyclictest0-21swapper/023:15:010
2812499180,2cyclictest3989-21H222:10:210
2812499180,2cyclictest3976-21H222:10:210
2812499180,17cyclictest0-21swapper/019:22:510
28126991715,1cyclictest86962chrt00:16:432
28126991715,1cyclictest3989-21H222:10:212
28126991715,1cyclictest16087-21nfsd422:35:182
28126991715,1cyclictest0-21swapper/221:30:132
28126991714,2cyclictest4099-21H222:10:212
28126991714,2cyclictest3669-21pzem_power23:10:202
28126991714,2cyclictest10563-21sort22:25:212
2812699171,15cyclictest0-21swapper/219:22:212
2812699170,2cyclictest3987-21H222:10:212
2812699170,2cyclictest3981-21H222:10:212
2812699170,2cyclictest29165-21/usr/sbin/munin23:00:132
2812699170,2cyclictest29165-21/usr/sbin/munin23:00:132
2812699170,2cyclictest27711-21grep22:00:132
2812699170,2cyclictest26800-21cut22:00:002
2812699170,2cyclictest2007-21systemd-journal00:03:032
2812699170,1cyclictest0-21swapper/220:19:002
2812699170,16cyclictest4099-21H222:10:212
2812699170,16cyclictest4099-21H222:10:212
2812699170,16cyclictest3983-21H222:10:212
2812699170,16cyclictest3983-21H222:10:212
2812699170,16cyclictest3981-21H222:10:212
2812699170,16cyclictest3450-21gsd-color20:45:122
2812699170,16cyclictest30704-21perf21:10:002
2812699170,16cyclictest29349-21kernelversion19:10:172
2812699170,16cyclictest20840-21systemctl23:40:192
2812699170,16cyclictest1100-21snmpd19:39:352
2812699170,16cyclictest1002-21/usr/sbin/munin22:10:162
2812699170,15cyclictest4035-21H222:10:212
2812699170,15cyclictest4035-21H222:10:212
28125991716,1cyclictest21-21ksoftirqd/122:42:351
28125991715,1cyclictest21-21ksoftirqd/123:25:181
28125991715,1cyclictest21-21ksoftirqd/121:20:131
28125991715,1cyclictest21-21ksoftirqd/100:31:541
28125991715,1cyclictest0-21swapper/119:20:271
28125991714,2cyclictest9119-21ls19:30:201
28125991714,2cyclictest4099-21H222:10:211
28125991714,2cyclictest3983-21H222:10:211
28125991714,2cyclictest3979-21H222:10:211
28125991714,2cyclictest31929-21sed00:00:241
28125991714,2cyclictest23114-21uname19:55:201
28125991714,2cyclictest21-21ksoftirqd/120:26:411
28125991714,2cyclictest21-21ksoftirqd/119:35:191
28125991714,2cyclictest2007-21systemd-journal21:57:561
28125991714,2cyclictest19564-21expr23:40:121
28125991714,2cyclictest1377-21lxd23:30:361
28125991713,3cyclictest4099-21H222:10:211
28125991713,3cyclictest3983-21H222:10:211
28125991713,3cyclictest0-21swapper/100:25:051
2812599171,15cyclictest21-21ksoftirqd/123:55:131
2812599171,15cyclictest21-21ksoftirqd/100:10:131
2812599170,2cyclictest4099-21H222:10:211
2812599170,2cyclictest4035-21H222:10:211
2812599170,2cyclictest3987-21H222:10:211
2812599170,2cyclictest3979-21H222:10:211
2812599170,2cyclictest378-21pzem_current23:05:221
2812599170,2cyclictest3053-21systemd-logind19:40:521
2812599170,2cyclictest16056-21nfsd422:35:181
2812599170,2cyclictest1035-21thermald23:20:191
2812599170,16cyclictest993-21dbus-daemon22:05:211
2812599170,16cyclictest7330-21fschecks_time00:15:141
2812599170,16cyclictest6235-21awk23:15:171
2812599170,16cyclictest3987-21H222:10:211
2812599170,16cyclictest3976-21H222:10:211
2812599170,16cyclictest31083-21/usr/sbin/munin21:10:181
2812599170,16cyclictest2430-21ls00:05:211
28124991715,1cyclictest27606-21df22:00:120
28124991715,1cyclictest13396-21wc23:30:160
28124991714,2cyclictest8920-21/usr/sbin/munin20:30:110
28124991714,2cyclictest7751-21expr19:30:130
28124991714,2cyclictest3847-21apache_accesses00:10:110
28124991714,2cyclictest30026-21grep20:10:160
28124991714,2cyclictest17989-21find00:35:110
28124991714,2cyclictest17274-21acpi20:45:100
2812499171,15cyclictest0-21swapper/022:35:140
2812499170,2cyclictest28405-21expr20:05:200
2812499170,2cyclictest25968-21grep23:50:160
2812499170,2cyclictest20527-21ls20:50:130
2812499170,2cyclictest15566-21cstates00:30:120
2812499170,16cyclictest8425-21wget23:20:140
2812499170,16cyclictest7921-21sed20:25:210
2812499170,16cyclictest6855-21grep22:20:150
2812499170,16cyclictest4035-21H222:10:210
2812499170,16cyclictest30113-21cstates22:05:140
2812499170,16cyclictest28773-21cstates21:05:140
2812499170,16cyclictest22449-21cat23:45:130
2812499170,16cyclictest22013-21expr21:50:140
2812499170,16cyclictest15880-21apt-key19:45:020
2812499170,16cyclictest12613-21latency22:30:170
2812499170,16cyclictest10961-21cat19:35:160
2812499170,16cyclictest0-21swapper/000:15:120
2812499170,16cyclictest0-21swapper/000:00:140
28126991614,1cyclictest0-21swapper/223:36:052
28126991614,1cyclictest0-21swapper/219:55:182
28126991614,1cyclictest0-21swapper/219:50:182
28126991614,1cyclictest0-21swapper/200:30:142
28126991613,2cyclictest23015-21proc_pri21:50:202
28126991613,2cyclictest13414-21cut21:35:142
2812699160,1cyclictest0-21swapper/221:45:142
2812699160,1cyclictest0-21swapper/219:30:122
2812699160,15cyclictest22982-21grep20:55:142
2812699160,15cyclictest0-21swapper/223:45:102
2812699160,15cyclictest0-21swapper/221:00:152
2812699160,15cyclictest0-21swapper/200:35:142
28125991615,0cyclictest0-21swapper/123:01:101
28125991615,0cyclictest0-21swapper/123:01:101
28125991614,1cyclictest21-21ksoftirqd/123:10:151
28125991614,1cyclictest0-21swapper/122:31:041
28125991614,1cyclictest0-21swapper/121:50:141
28125991614,1cyclictest0-21swapper/120:50:191
28125991613,2cyclictest27183-21grep22:55:191
28125991613,2cyclictest18299-21latency20:45:161
2812599161,1cyclictest18992-21cpuspeed_turbos21:45:131
2812599160,1cyclictest0-21swapper/120:15:471
2812599160,15cyclictest21-21ksoftirqd/122:10:181
2812599160,15cyclictest13678-21cat21:35:141
2812599160,15cyclictest0-21swapper/123:50:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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