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2026-07-11 - 15:28
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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 highest latencies:
System rackdslot0.osadl.org (updated Sat Jul 11, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30604992826,0cyclictest0-21swapper/109:30:221
30602992415,9cyclictest0-21swapper/011:27:160
30604992312,10cyclictest0-21swapper/111:40:161
3060299220,4cyclictest0-21swapper/011:22:250
3061099210,3cyclictest0-21swapper/210:30:192
30604992112,0cyclictest0-21swapper/111:27:161
3060499210,20cyclictest0-21swapper/112:25:181
30610992015,4cyclictest8044-21tr12:10:132
3061099200,3cyclictest0-21swapper/211:51:112
3060499203,16cyclictest2872-21systemd-logind09:20:521
30604992015,4cyclictest0-21swapper/110:30:141
3060299200,19cyclictest843-21systemd-network11:44:280
3061099190,8cyclictest0-21swapper/208:15:492
30604991916,2cyclictest17063-21plymouth07:40:211
3060499190,16cyclictest0-21swapper/112:15:161
30602991916,2cyclictest12978-21dump-pmu-power12:20:000
30602991914,3cyclictest0-21swapper/010:40:000
3060299190,18cyclictest0-21swapper/007:15:170
3060299190,0cyclictest0-21swapper/008:20:010
3061099183,1cyclictest10101-21cat09:20:212
3061099183,1cyclictest0-21swapper/210:52:402
3061099182,1cyclictest30407-21gpgv10:00:022
30610991817,1cyclictest28-21ksoftirqd/212:34:032
30610991814,3cyclictest3987-21H222:10:212
3061099181,16cyclictest0-21swapper/211:05:232
3061099180,16cyclictest12725-21nfsd411:20:182
3061099180,15cyclictest0-21swapper/209:35:142
3060499182,15cyclictest4772-21switchtime11:05:221
3060499182,15cyclictest192962chrt11:30:391
30604991815,2cyclictest9007-21missed_timers12:10:171
30604991815,2cyclictest24693-21/usr/sbin/munin08:50:171
30604991815,2cyclictest2069-21systemd-udevd08:20:521
3060499180,3cyclictest0-21swapper/107:25:271
3060299189,5cyclictest0-21swapper/009:25:220
30602991816,1cyclictest464-21acpi08:10:120
3060299181,16cyclictest20452-21expr11:35:130
3060299180,2cyclictest3991-21H222:10:210
3060299180,2cyclictest16654-21nfsd410:30:190
3060299180,16cyclictest5044-21sshd12:05:140
3060299180,15cyclictest3981-21H222:10:210
30610991714,2cyclictest8294-21wc08:20:202
30610991714,2cyclictest3991-21H222:10:212
30610991714,2cyclictest3981-21H222:10:212
30610991714,2cyclictest29801-21fschecks_count09:00:152
30610991714,2cyclictest2472-21/usr/sbin/munin09:10:122
30610991714,2cyclictest22457-21processes08:45:222
30610991714,2cyclictest18146-21apt-config07:45:012
30610991713,3cyclictest1085-21gdbus08:25:212
3061099171,16cyclictest0-21swapper/210:15:162
3061099171,15cyclictest28-21ksoftirqd/209:17:252
3061099171,15cyclictest1142-21sendmail_mailtr09:05:212
3061099170,3cyclictest0-21swapper/209:50:412
3061099170,3cyclictest0-21swapper/209:40:152
3061099170,3cyclictest0-21swapper/209:25:222
3061099170,2cyclictest9591-21if_lxdbr011:15:172
3061099170,2cyclictest3981-21H222:10:212
3061099170,2cyclictest32498-21cut11:00:132
3061099170,2cyclictest31366-21ntp_states08:05:202
3061099170,2cyclictest2989-21sed12:00:172
3061099170,2cyclictest26248-21grep11:45:142
3061099170,2cyclictest25255-21wc08:50:202
3061099170,2cyclictest20115-21sed08:40:212
3061099170,2cyclictest18538-21nfsd411:30:192
3061099170,1cyclictest0-21swapper/211:43:422
3061099170,16cyclictest8516-21ntp_states07:25:182
3061099170,16cyclictest677-21cut08:10:142
3061099170,16cyclictest5956-21/usr/sbin/munin11:10:122
3061099170,16cyclictest5693-21nfsd407:20:182
3061099170,16cyclictest3985-21H222:10:212
3061099170,16cyclictest32407-21/usr/sbin/munin07:10:212
3061099170,16cyclictest31100-21timerwakeupswit10:55:232
3061099170,16cyclictest28905-21nfsd409:55:182
3061099170,16cyclictest28401-21head08:00:172
3061099170,16cyclictest27014-21/usr/sbin/munin08:55:162
3061099170,16cyclictest27014-21/usr/sbin/munin08:55:162
3061099170,16cyclictest24785-21tune2fs07:55:162
3061099170,16cyclictest22428-21expr12:35:132
3061099170,16cyclictest17353-21nfsd412:25:182
3061099170,16cyclictest14777-21cut11:25:132
3061099170,16cyclictest13892-21cstates12:20:142
3061099170,16cyclictest13668-21missed_timers07:35:192
3061099170,16cyclictest13328-21fschecks_time10:25:162
3061099170,16cyclictest12423-21sed07:35:012
3061099170,16cyclictest1035-21thermald11:35:212
3060499172,1cyclictest208942sleep112:31:341
30604991716,1cyclictest21-21ksoftirqd/110:15:151
30604991716,1cyclictest21-21ksoftirqd/107:55:151
30604991714,2cyclictest870-21systemd-logind08:04:521
30604991714,2cyclictest3981-21H222:10:211
30604991714,2cyclictest32028-21missed_timers07:10:191
30604991714,2cyclictest30857-21if_lxdbr008:05:161
30604991714,2cyclictest29871-21tune2fs09:00:151
30604991714,2cyclictest24788-21memory10:45:181
30604991714,2cyclictest24431-21latency_hist09:50:001
30604991714,2cyclictest18672-21cstates10:35:141
30604991714,2cyclictest14505-21snapd09:40:281
30604991714,2cyclictest13400-21apache_accesses12:20:111
30604991714,2cyclictest12843-21grep08:30:131
30604991714,2cyclictest12843-21grep08:30:131
30604991713,3cyclictest3981-21H222:10:211
30604991713,3cyclictest0-21swapper/111:19:221
30604991713,3cyclictest0-21swapper/109:35:201
3060499170,2cyclictest4099-21H222:10:211
3060499170,2cyclictest399-20systemd-journal08:45:011
3060499170,2cyclictest31989-21munin-run11:00:001
3060499170,2cyclictest27642-21nfsd408:55:201
3060499170,2cyclictest27642-21nfsd408:55:201
3060499170,2cyclictest11438-21sendmail_mailtr07:30:231
3060499170,2cyclictest0-21swapper/111:20:201
3060499170,2cyclictest0-21swapper/107:15:171
3060499170,1cyclictest0-21swapper/109:11:261
3060499170,1cyclictest0-21swapper/107:38:221
3060499170,16cyclictest870-21systemd-logind10:26:521
3060499170,16cyclictest6882-21irqstats11:10:161
3060499170,16cyclictest5645-21grep07:20:181
3060499170,16cyclictest4200-21munin-run10:10:001
3060499170,16cyclictest3991-21H222:10:211
3060499170,16cyclictest3053-21systemd-logind09:28:521
3060499170,16cyclictest28594-21cat11:50:001
3060499170,16cyclictest2464-21munin-run11:05:001
3060499170,16cyclictest22382-21expr12:35:131
3060499170,16cyclictest2158-21cut12:00:141
3060499170,16cyclictest1516-21lxd08:12:421
3060499170,16cyclictest12438-21wc08:30:011
30602991714,2cyclictest9218-21nfsd412:10:180
30602991714,2cyclictest8047-21cut08:20:180
30602991714,2cyclictest7211-21switchtime09:15:220
30602991714,2cyclictest689-21nfsd409:05:190
30602991714,2cyclictest3983-21H222:10:210
30602991714,2cyclictest3981-21H222:10:210
30602991714,2cyclictest32747-21expr11:00:130
30602991714,2cyclictest23834-21cpuspeed_turbos10:45:140
30602991714,2cyclictest23465-21taskset07:52:250
30602991714,2cyclictest19409-21runrttasks11:32:150
30602991714,2cyclictest18880-21wc12:30:140
30602991714,2cyclictest18626-21find07:45:140
30602991714,2cyclictest15287-21/usr/sbin/munin09:30:210
30602991714,2cyclictest12226-21latency_hist10:25:010
30602991714,2cyclictest1-21systemd12:00:510
3060299170,2cyclictest3985-21H222:10:210
3060299170,2cyclictest3981-21H222:10:210
3060299170,2cyclictest3450-21gsd-color09:10:230
3060299170,2cyclictest27918-21ps10:50:200
3060299170,2cyclictest2485-21nfsd410:05:190
3060299170,2cyclictest19659-21cat09:40:150
3060299170,2cyclictest15176-21cat12:20:210
3060299170,2cyclictest10103-21ntp_states11:15:200
3060299170,1cyclictest0-21swapper/010:18:260
3060299170,1cyclictest0-21swapper/007:15:010
3060299170,16cyclictest9257-21sh08:25:010
3060299170,16cyclictest5975-21apache_accesses11:10:110
3060299170,16cyclictest501-21ntp_states11:55:190
3060299170,16cyclictest3991-21H222:10:210
3060299170,16cyclictest3981-21H222:10:210
3060299170,16cyclictest3643-21grep11:05:160
3060299170,16cyclictest30226-21/usr/sbin/munin08:05:140
3060299170,16cyclictest28807-21apache_accesses11:50:110
3060299170,16cyclictest22534-21expr12:35:130
3060299170,16cyclictest15190-21latency_hist08:35:010
3060299170,16cyclictest15190-21latency_hist08:35:010
3060299170,16cyclictest0-21swapper/010:27:240
3060299170,16cyclictest0-21swapper/007:35:190
3060299170,15cyclictest3987-21H222:10:210
30610991614,1cyclictest0-21swapper/207:50:222
30610991614,1cyclictest0-21swapper/207:15:122
30610991613,2cyclictest3450-21gsd-color12:15:132
30610991613,2cyclictest31537-21apache_accesses11:55:132
3061099160,1cyclictest0-21swapper/207:45:162
3061099160,15cyclictest1293-21cpuspeed_turbos10:05:152
3061099160,15cyclictest12620-21/usr/sbin/munin08:30:132
3061099160,15cyclictest12620-21/usr/sbin/munin08:30:132
3061099160,15cyclictest1079-21cups-browsed12:05:222
3061099160,15cyclictest0-21swapper/209:45:152
3061099160,15cyclictest0-21swapper/209:30:152
30604991614,1cyclictest3034-21apt-get08:15:031
30604991614,1cyclictest0-21swapper/111:50:111
30604991614,1cyclictest0-21swapper/111:35:141
30604991614,1cyclictest0-21swapper/110:50:171
30604991614,1cyclictest0-21swapper/110:40:191
30604991614,1cyclictest0-21swapper/110:20:131
30604991614,1cyclictest0-21swapper/107:50:211
30604991613,2cyclictest0-21swapper/109:50:201
3060499160,2cyclictest4809-21cat10:10:161
3060499160,15cyclictest0-21swapper/112:05:121
3060499160,15cyclictest0-21swapper/111:55:221
3060499160,15cyclictest0-21swapper/109:15:121
3060499160,15cyclictest0-21swapper/108:40:121
30602991614,1cyclictest22765-21fschecks_count09:45:170
30602991614,1cyclictest0-21swapper/008:00:010
3060299160,2cyclictest24104-21wc07:55:150
3060299160,1cyclictest15695-21tr07:40:140
3060299160,1cyclictest0-21swapper/011:45:130
3060299160,1cyclictest0-21swapper/009:50:140
3060299160,1cyclictest0-21swapper/008:45:150
3060299160,1cyclictest0-21swapper/008:35:160
3060299160,15cyclictest9195-21irqstats09:20:160
3060299160,15cyclictest23697-21awk08:50:110
3060299160,15cyclictest10357-21expr07:30:160
3060299160,15cyclictest0-21swapper/008:55:130
3060299160,15cyclictest0-21swapper/008:55:130
3060299160,15cyclictest0-21swapper/008:40:130
3060299160,14cyclictest0-21swapper/010:55:130
30610991513,1cyclictest0-21swapper/210:45:092
3060499150,1cyclictest0-21swapper/107:45:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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