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2026-07-15 - 01:31
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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 highest latencies:
System rackdslot0.osadl.org (updated Tue Jul 14, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2157992927,1cyclictest0-21swapper/008:30:180
215899258,2cyclictest3981-21H222:10:211
215899250,24cyclictest0-21swapper/111:54:101
215899250,24cyclictest0-21swapper/109:30:061
215899240,0cyclictest0-21swapper/112:13:451
215799240,22cyclictest0-21swapper/010:41:500
215899230,8cyclictest0-21swapper/109:15:151
215899230,5cyclictest0-21swapper/112:26:431
215899230,5cyclictest0-21swapper/109:05:011
215899230,22cyclictest0-21swapper/107:57:411
215899220,20cyclictest870-21systemd-logind09:48:511
215799220,4cyclictest0-21swapper/012:05:000
215799220,21cyclictest0-21swapper/012:34:200
215799220,18cyclictest0-21swapper/010:31:560
2162992118,2cyclictest17946-21sh10:30:012
215899214,3cyclictest0-21swapper/110:37:591
215899214,2cyclictest3976-21H222:10:211
215899211,17cyclictest4023-21PluginScanner10:07:061
215899210,3cyclictest0-21swapper/112:34:211
2157992121,0cyclictest0-21swapper/012:05:360
2157992121,0cyclictest0-21swapper/009:30:070
215799210,3cyclictest0-21swapper/011:08:260
2162992011,5cyclictest0-21swapper/207:26:172
216299200,19cyclictest399-20systemd-journal07:57:142
215899203,16cyclictest31303-21cstates09:55:151
215899202,3cyclictest0-21swapper/108:46:501
215899202,1cyclictest0-21swapper/111:35:101
2158992010,10cyclictest0-21swapper/112:20:541
215899200,19cyclictest15639-21chrt09:25:231
2157992016,3cyclictest0-21swapper/011:34:280
2157992014,4cyclictest14190-21grep08:25:190
2162991919,0cyclictest0-21swapper/208:45:162
2162991917,1cyclictest0-21swapper/211:31:262
2162991916,2cyclictest28-21ksoftirqd/211:40:552
216299190,2cyclictest4035-21H222:10:212
216299190,16cyclictest3991-21H222:10:212
215899192,2cyclictest14750-21cut11:20:161
215899192,16cyclictest0-21swapper/107:24:561
2158991916,2cyclictest32542-21expr10:55:161
215899190,18cyclictest3981-21H222:10:211
215899190,18cyclictest3981-21H222:10:211
215899190,18cyclictest0-21swapper/107:50:151
215899190,16cyclictest3987-21H222:10:211
215899190,16cyclictest3976-21H222:10:211
215799192,2cyclictest22563-21processes10:35:200
215799192,2cyclictest13205-21chrt07:28:430
215799192,16cyclictest3398-21timerandwakeup10:00:220
215799192,16cyclictest0-21swapper/011:59:180
215799192,16cyclictest0-21swapper/009:46:400
2157991917,1cyclictest4913-21df08:10:130
2157991917,1cyclictest0-21swapper/007:35:150
2157991916,2cyclictest0-21swapper/010:54:090
2157991914,4cyclictest1927-21if_enp1s008:05:160
215799191,16cyclictest4158-21grep11:00:180
215799190,4cyclictest22151-21python309:40:000
215799190,4cyclictest22151-21python309:40:000
215799190,1cyclictest0-21swapper/012:24:420
215799190,16cyclictest3987-21H222:10:210
215799190,16cyclictest3987-21H222:10:210
216299182,15cyclictest0-21swapper/208:15:152
2162991816,1cyclictest0-21swapper/209:30:132
2162991816,1cyclictest0-21swapper/207:39:212
2162991815,2cyclictest20971-21nvmesmart_nvme009:35:202
2162991815,2cyclictest20971-21nvmesmart_nvme009:35:192
216299181,1cyclictest0-21swapper/208:40:192
216299181,16cyclictest17440-21cut11:25:142
216299180,3cyclictest12759-21run-parts08:25:022
216299180,2cyclictest3985-21H222:10:212
216299180,2cyclictest3983-21H222:10:212
216299180,1cyclictest0-21swapper/208:05:022
216299180,17cyclictest843-21systemd-network09:02:432
216299180,17cyclictest25654-21cpuspeed_turbos09:45:122
216299180,17cyclictest0-21swapper/210:20:132
216299180,16cyclictest4099-21H222:10:212
216299180,16cyclictest4099-21H222:10:212
216299180,16cyclictest3979-21H222:10:212
216299180,15cyclictest3991-21H222:10:212
215899182,1cyclictest30392-21latency10:50:181
215899182,1cyclictest0-21swapper/111:15:541
215899182,1cyclictest0-21swapper/108:09:251
215899182,15cyclictest0-21swapper/110:41:181
215899182,15cyclictest0-21swapper/110:34:071
2158991813,2cyclictest3979-21H222:10:211
215899181,2cyclictest29641-21expr08:55:131
215899180,3cyclictest5492-21ls12:00:181
215899180,3cyclictest23559-21munin-run08:45:001
215899180,17cyclictest843-21systemd-network08:13:141
215899180,17cyclictest3981-21H222:10:211
215899180,17cyclictest23647-21find07:45:211
215899180,16cyclictest843-21systemd-network11:30:091
215899180,16cyclictest4035-21H222:10:211
215899180,16cyclictest4035-21H222:10:211
215899180,15cyclictest4099-21H222:10:211
215799183,1cyclictest0-21swapper/012:27:460
215799182,15cyclictest8538-21cstates07:20:140
215799182,15cyclictest31056-21cat08:00:150
215799182,15cyclictest23629-21sed07:45:220
215799182,15cyclictest0-21swapper/007:14:070
2157991817,1cyclictest0-21swapper/011:10:180
2157991816,1cyclictest0-21swapper/011:17:380
2157991816,1cyclictest0-21swapper/009:50:120
2157991816,1cyclictest0-21swapper/008:40:220
2157991815,2cyclictest31496-21cat11:50:140
2157991815,2cyclictest18149-21nfsd411:25:190
2157991814,3cyclictest3991-21H222:10:210
215799181,2cyclictest19369-21basename07:40:110
215799181,16cyclictest28102-21readlink11:45:020
215799181,16cyclictest25416-21mailstats12:35:210
215799181,16cyclictest25416-21mailstats12:35:210
215799181,16cyclictest11620-21cstates09:20:130
215799181,16cyclictest0-21swapper/009:25:230
215799180,3cyclictest8418-21cat09:15:010
215799180,3cyclictest0-21swapper/011:40:140
215799180,2cyclictest3987-21H222:10:210
215799180,17cyclictest4553-21/usr/sbin/munin10:05:120
215799180,17cyclictest27142-21perf07:55:000
215799180,17cyclictest16070-21perf07:35:010
215799180,17cyclictest16070-21perf07:35:000
215799180,17cyclictest12388-21sshd12:14:240
215799180,15cyclictest3976-21H222:10:210
215799180,15cyclictest0-21swapper/009:15:130
2162991714,2cyclictest9818-21nfsd409:15:182
2162991714,2cyclictest9077-21if_enp1s007:20:172
2162991714,2cyclictest452-21/usr/sbin/munin08:05:012
2162991714,2cyclictest4315-21/usr/sbin/munin08:10:162
2162991714,2cyclictest3981-21H222:10:212
2162991714,2cyclictest31734-21fschecks_time09:55:152
2162991714,2cyclictest3080-21ls09:05:142
2162991714,2cyclictest30268-21cat08:55:172
2162991714,2cyclictest28520-21cpuspeed_turbos09:50:132
2162991714,2cyclictest27214-21expr08:50:142
2162991714,2cyclictest14803-21sed11:20:162
2162991714,2cyclictest11569-21timerandwakeup08:20:222
2162991714,2cyclictest11569-21timerandwakeup08:20:212
2162991714,2cyclictest10145-21apache_accesses12:10:122
2162991713,3cyclictest3983-21H222:10:212
216299170,2cyclictest5974-21ls11:05:132
216299170,2cyclictest5250-21hddtemp_smartct10:05:152
216299170,2cyclictest4541-21apache_volume12:00:122
216299170,2cyclictest24392-21cstates10:40:152
216299170,2cyclictest20073-21sed08:35:202
216299170,2cyclictest18367-21apache_accesses10:30:122
216299170,2cyclictest16162-21expr08:30:142
216299170,2cyclictest1079-21cups-browsed07:30:212
216299170,2cyclictest1079-21cups-browsed07:30:202
216299170,1cyclictest3985-21H222:10:212
216299170,1cyclictest0-21swapper/210:35:122
216299170,16cyclictest7908-21chrt09:11:212
216299170,16cyclictest5632-21cut07:15:132
216299170,16cyclictest4099-21H222:10:212
216299170,16cyclictest3981-21H222:10:212
216299170,16cyclictest31045-21apache_accesses11:50:122
216299170,16cyclictest27150-21cstates10:45:132
216299170,16cyclictest25378-21expr07:50:162
216299170,16cyclictest24406-21df_inode12:35:132
216299170,16cyclictest24406-21df_inode12:35:132
216299170,16cyclictest24058-21sed11:35:242
216299170,16cyclictest23329-21cstates09:40:132
216299170,16cyclictest21516-21chrt07:43:032
216299170,16cyclictest12063-21/usr/sbin/munin09:20:162
216299170,16cyclictest10324-21cpuspeed_turbos10:15:142
215899172,15cyclictest21-21ksoftirqd/109:42:291
2158991714,2cyclictest8562-21apt11:10:131
2158991714,2cyclictest30433-21cpuspeed_turbos08:00:131
2158991714,2cyclictest1761-21systemd08:50:521
2158991714,2cyclictest14236-21ls07:30:131
2158991714,2cyclictest14236-21ls07:30:131
2158991714,2cyclictest10835-21fschecks_time10:15:161
2158991714,2cyclictest1079-21cups-browsed09:05:231
2158991713,3cyclictest0-21swapper/110:48:001
215899170,2cyclictest8210-21perf09:15:001
215899170,2cyclictest7427-21/usr/sbin/munin10:10:121
215899170,2cyclictest5764-21wc07:15:131
215899170,2cyclictest3046-21wc10:00:191
215899170,2cyclictest21830-21date07:45:021
215899170,2cyclictest16804-21seq11:25:021
215899170,2cyclictest15649-21apache_processe10:25:111
215899170,2cyclictest10154-21cstates08:20:121
215899170,2cyclictest10154-21cstates08:20:121
215899170,16cyclictest7831-21expr12:05:121
215899170,16cyclictest2883-21tr11:00:141
215899170,16cyclictest19557-21nfsd408:35:161
215899170,16cyclictest17277-21/usr/sbin/munin07:35:181
215899170,16cyclictest15703-21/usr/sbin/munin08:30:151
215899170,16cyclictest13316-21/usr/sbin/munin07:30:011
215899170,16cyclictest11534-21tr09:20:141
215899170,16cyclictest0-21swapper/112:15:041
215899170,16cyclictest0-21swapper/108:25:201
215899170,15cyclictest0-21swapper/108:15:131
2157991714,2cyclictest25946-21sshd08:45:370
215799170,2cyclictest5573-21cpuspeed_turbos07:15:140
215799170,2cyclictest32387-21cpuspeed_turbos09:00:130
215799170,2cyclictest31335-21cat09:55:150
215799170,2cyclictest3011-21cstates09:05:150
215799170,2cyclictest29572-21chrt07:56:230
215799170,2cyclictest27726-21cat08:50:180
215799170,2cyclictest18922-21expr08:35:130
215799170,2cyclictest15551-21open_inodes11:20:200
215799170,2cyclictest10411-21cstates10:15:150
215799170,1cyclictest0-21swapper/008:55:140
215799170,16cyclictest9819-21apache_processe08:20:110
215799170,16cyclictest9819-21apache_processe08:20:100
215799170,16cyclictest7048-21/usr/sbin/munin08:15:120
215799170,16cyclictest22411-21grep11:35:140
215799170,16cyclictest13450-21cstates12:15:150
215799170,16cyclictest13435-21expr10:20:140
2162991614,1cyclictest0-21swapper/212:30:152
2162991614,1cyclictest0-21swapper/207:10:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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