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2026-06-25 - 16:31
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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 Thu Jun 25, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
572799280,0cyclictest0-21swapper/008:15:140
5732992615,11cyclictest0-21swapper/111:43:361
5732992313,0cyclictest0-21swapper/110:42:071
5727992314,0cyclictest0-21swapper/011:11:450
5727992313,10cyclictest0-21swapper/012:33:060
572799230,22cyclictest0-21swapper/008:05:140
573299220,18cyclictest0-21swapper/112:16:261
573299215,2cyclictest4099-21H222:10:211
5727992113,4cyclictest0-21swapper/008:53:390
573699202,2cyclictest3989-21H222:10:212
5736992017,2cyclictest19624-21proc_pri12:15:212
573699200,5cyclictest0-21swapper/208:54:292
573299204,15cyclictest0-21swapper/107:36:111
5732992017,2cyclictest10093-21fschecks_time12:00:141
572799207,7cyclictest9-21ksoftirqd/012:15:000
572799203,16cyclictest26616-21tlsmgr09:12:060
572799201,1cyclictest0-21swapper/011:50:220
573699192,2cyclictest2761-21chrt09:54:242
5736991916,2cyclictest29013-21cat12:35:012
5736991916,2cyclictest22610-21perf07:40:012
5736991916,2cyclictest0-21swapper/211:29:252
5736991914,4cyclictest3985-21H222:10:212
573699191,12cyclictest0-21swapper/210:05:212
573699190,2cyclictest3983-21H222:10:212
573699190,16cyclictest3981-21H222:10:212
573699190,16cyclictest3976-21H222:10:212
573299193,15cyclictest0-21swapper/107:55:411
5732991917,1cyclictest0-21swapper/110:23:261
573299190,2cyclictest3981-21H222:10:211
573299190,16cyclictest3979-21H222:10:211
572799193,15cyclictest20698-21cat08:30:160
572799193,15cyclictest0-21swapper/011:39:420
572799192,16cyclictest21512-21cut09:30:010
5727991917,1cyclictest0-21swapper/012:28:520
5727991916,2cyclictest0-21swapper/009:16:300
5727991914,4cyclictest0-21swapper/011:59:200
572799190,3cyclictest0-21swapper/010:56:450
572799190,18cyclictest0-21swapper/007:55:000
572799190,16cyclictest3981-21H222:10:210
573699182,15cyclictest26189-21cat12:30:002
5736991815,2cyclictest3976-21H222:10:212
5736991815,2cyclictest3840-21cat09:55:142
5736991815,2cyclictest26582-21fschecks_count10:35:132
5736991814,3cyclictest0-21swapper/208:04:062
573699181,16cyclictest21992-21expr09:30:132
573699180,3cyclictest15785-21munin-run09:20:002
573699180,2cyclictest4035-21H222:10:212
573699180,1cyclictest3979-21H222:10:212
573699180,17cyclictest3983-21H222:10:212
573699180,17cyclictest3981-21H222:10:212
573699180,17cyclictest15355-21hddtemp_smartct10:15:152
573699180,15cyclictest3979-21H222:10:212
573699180,15cyclictest3979-21H222:10:212
5732991816,1cyclictest21-21ksoftirqd/112:35:551
5732991815,2cyclictest4099-21H222:10:211
5732991815,2cyclictest2907-21cat10:50:151
5732991814,3cyclictest3983-21H222:10:211
5732991814,3cyclictest3979-21H222:10:211
573299181,15cyclictest3985-21H222:10:211
573299180,2cyclictest3991-21H222:10:211
573299180,2cyclictest3989-21H222:10:211
573299180,2cyclictest3983-21H222:10:211
573299180,17cyclictest3981-21H222:10:211
573299180,17cyclictest18647-21debian-sa109:25:011
573299180,15cyclictest3979-21H222:10:211
572799182,15cyclictest1274-21runrttasks11:31:130
5727991818,0cyclictest0-21swapper/011:00:140
5727991816,1cyclictest9-21ksoftirqd/010:38:040
5727991816,1cyclictest0-21swapper/010:15:070
5727991815,2cyclictest4035-21H222:10:210
572799180,2cyclictest5296-21grep09:00:130
572799180,2cyclictest3991-21H222:10:210
572799180,2cyclictest3991-21H222:10:210
572799180,16cyclictest4099-21H222:10:210
572799180,16cyclictest3985-21H222:10:210
572799180,15cyclictest3985-21H222:10:210
572799180,15cyclictest3983-21H222:10:210
5736991715,1cyclictest0-21swapper/208:15:432
5736991714,2cyclictest9970-21df12:00:132
5736991714,2cyclictest9575-21nfsd411:00:182
5736991714,2cyclictest8740-21/usr/sbin/munin07:15:202
5736991714,2cyclictest8229-21expr08:10:142
5736991714,2cyclictest30661-21/usr/sbin/munin09:45:142
5736991714,2cyclictest29503-21fschecks_count07:50:152
5736991714,2cyclictest26245-21cpuspeed_turbos07:45:132
5736991714,2cyclictest18802-21ntp_states10:20:192
5736991714,2cyclictest1761-21systemd08:25:012
5736991714,2cyclictest16607-21which12:10:202
5736991714,2cyclictest1516-21lxd07:32:412
5736991714,2cyclictest13853-21apache_accesses11:10:112
5736991713,3cyclictest3983-21H222:10:212
573699170,2cyclictest5377-21cstates08:05:142
573699170,2cyclictest32322-21hddtemp_smartct10:45:162
573699170,2cyclictest29343-21cstates12:35:132
573699170,2cyclictest23432-21memory08:35:162
573699170,2cyclictest16635-21python307:30:002
573699170,2cyclictest1109-21expr11:45:122
573699170,16cyclictest7250-21nfsd407:10:202
573699170,16cyclictest4315-21taskset10:50:352
573699170,16cyclictest3985-21H222:10:212
573699170,16cyclictest3983-21H222:10:212
573699170,16cyclictest3981-21H222:10:212
573699170,16cyclictest29955-21users08:45:222
573699170,16cyclictest28889-21apache_volume10:40:112
573699170,16cyclictest24879-21expr09:35:132
573699170,16cyclictest21459-21sshd11:22:362
573699170,16cyclictest20652-21expr10:25:132
573699170,16cyclictest12813-21irqstats10:10:172
573699170,16cyclictest12803-21nfsd407:20:182
573699170,16cyclictest11320-21cat11:05:122
573699170,16cyclictest0-21swapper/209:25:182
573699170,16cyclictest0-21swapper/208:41:082
5732991716,1cyclictest24000-21sensors08:35:211
5732991714,2cyclictest7342-21load10:00:171
5732991714,2cyclictest5473-21expr09:00:131
5732991714,2cyclictest4099-21H222:10:211
5732991714,2cyclictest3991-21H222:10:211
5732991714,2cyclictest3979-21H222:10:211
5732991714,2cyclictest3979-21H222:10:211
5732991714,2cyclictest32455-21cat10:45:161
5732991714,2cyclictest15133-21awk11:10:171
5732991714,2cyclictest13857-21/usr/sbin/munin08:20:131
5732991714,1cyclictest0-21swapper/109:50:581
573299171,15cyclictest3983-21H222:10:211
573299170,2cyclictest5851-21http_loadtime08:05:141
573299170,2cyclictest4035-21H222:10:211
573299170,2cyclictest4035-21H222:10:211
573299170,2cyclictest3983-21H222:10:211
573299170,2cyclictest3976-21H222:10:211
573299170,2cyclictest28861-21/usr/sbin/munin08:45:161
573299170,2cyclictest27047-21cat10:35:161
573299170,2cyclictest25305-21apt-get08:40:121
573299170,2cyclictest25126-21sed07:40:221
573299170,2cyclictest20135-21/usr/sbin/munin10:25:111
573299170,2cyclictest18976-21latency_hist11:20:001
573299170,16cyclictest9976-21grep07:15:171
573299170,16cyclictest5227-21cp10:55:021
573299170,16cyclictest4099-21H222:10:211
573299170,16cyclictest3989-21H222:10:211
573299170,16cyclictest3981-21H222:10:211
573299170,16cyclictest3976-21H222:10:211
573299170,16cyclictest2880-21basename08:00:161
573299170,16cyclictest27990-21fschecks_count09:40:151
573299170,16cyclictest13885-21cat09:15:121
573299170,16cyclictest1375-21munin-node10:30:111
573299170,16cyclictest13068-21grep10:10:171
573299170,16cyclictest12138-21smartctl09:10:181
573299170,15cyclictest455-21plymouthd08:55:141
5727991717,0cyclictest0-21swapper/010:30:140
5727991715,2cyclictest1320-21nsca08:03:360
5727991715,1cyclictest9-21ksoftirqd/009:53:270
5727991715,1cyclictest9-21ksoftirqd/007:50:010
5727991715,1cyclictest0-21swapper/010:25:140
5727991714,2cyclictest4927-21ntpq09:55:180
5727991714,2cyclictest3983-21H222:10:210
5727991714,2cyclictest28424-21expr08:45:120
5727991714,2cyclictest25813-21awk09:35:180
5727991714,2cyclictest19494-21tr11:20:110
5727991714,2cyclictest11235-21chrt10:08:550
572799171,15cyclictest12171-21/usr/sbin/munin10:10:140
572799171,15cyclictest0-21swapper/008:20:100
572799170,2cyclictest705-21pzem_power07:55:200
572799170,2cyclictest3981-21H222:10:210
572799170,2cyclictest3976-21H222:10:210
572799170,2cyclictest22993-21dpkg07:40:010
572799170,2cyclictest16223-21apache_processe09:20:110
572799170,16cyclictest8974-21cut07:15:120
572799170,16cyclictest8005-21tr09:05:130
572799170,16cyclictest6794-21idleruntime07:10:170
572799170,16cyclictest3983-21H222:10:210
572799170,16cyclictest3976-21H222:10:210
572799170,16cyclictest30479-21awk10:40:200
572799170,16cyclictest27716-21cat09:40:130
572799170,16cyclictest1829-21systemd-journal07:25:380
572799170,16cyclictest12652-21expr12:05:140
572799170,16cyclictest10117-21sed12:00:140
572799170,15cyclictest3979-21H222:10:210
5736991614,1cyclictest0-21swapper/210:55:022
5736991614,1cyclictest0-21swapper/207:40:112
5736991613,2cyclictest4828-21/usr/sbin/munin11:50:162
573699160,2cyclictest16314-21/usr/sbin/munin09:20:132
5732991614,1cyclictest11711-21expr07:20:131
5732991614,1cyclictest0-21swapper/111:00:131
5732991614,1cyclictest0-21swapper/108:10:221
5732991614,1cyclictest0-21swapper/107:10:141
573299160,1cyclictest0-21swapper/109:05:141
573299160,15cyclictest4628-21sed09:55:181
573299160,15cyclictest14362-21expr07:25:141
573299160,15cyclictest0-21swapper/107:50:121
5727991614,1cyclictest0-21swapper/012:15:140
5727991614,1cyclictest0-21swapper/011:46:280
572799160,2cyclictest11526-21egrep07:20:130
572799160,15cyclictest23942-21expr07:40:150
572799160,15cyclictest0-21swapper/008:40:150
572799160,15cyclictest0-21swapper/008:35:140
572799160,14cyclictest0-21swapper/008:55:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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