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2026-07-06 - 09:20
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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 Mon Jul 06, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12941992726,0cyclictest0-21swapper/200:10:162
1293999263,18cyclictest0-21swapper/019:35:010
1294199230,22cyclictest843-21systemd-network23:29:492
1294099230,18cyclictest30055-21sed19:40:001
12941992212,0cyclictest0-21swapper/220:25:162
1294199220,18cyclictest0-21swapper/221:00:152
1293999220,21cyclictest843-21systemd-network22:51:430
12941992119,1cyclictest4844-21perf00:40:002
12941992117,3cyclictest0-21swapper/222:10:562
12940992117,3cyclictest0-21swapper/122:40:011
12941992016,3cyclictest0-21swapper/222:27:222
12941992016,3cyclictest0-21swapper/220:35:332
12941992014,3cyclictest0-21swapper/200:04:372
1294199200,18cyclictest4035-21H222:10:212
12939992020,0cyclictest0-21swapper/021:09:380
12939992017,2cyclictest4099-21H222:10:210
12941991917,1cyclictest16054-21cpuspeed_turbos19:15:122
12941991917,1cyclictest0-21swapper/200:25:172
12941991916,2cyclictest9144-21cut20:55:162
12941991915,3cyclictest0-21swapper/220:06:252
1294199190,2cyclictest21452-21cat21:20:012
1294199190,2cyclictest21452-21cat21:20:002
1294199190,0cyclictest0-21swapper/221:20:172
12940991916,2cyclictest6033-21cut23:44:591
1294099190,17cyclictest0-21swapper/120:00:481
1294099190,16cyclictest3979-21H222:10:211
1293999192,16cyclictest12448-21wc21:00:230
1293999191,15cyclictest3979-21H222:10:210
1293999190,18cyclictest843-21systemd-network21:23:060
1293999190,16cyclictest4099-21H222:10:210
1294199182,1cyclictest0-21swapper/220:34:192
1294199182,1cyclictest0-21swapper/200:00:002
1294199182,15cyclictest31950irq/134-nvme0q322:40:012
1294199182,15cyclictest28-21ksoftirqd/222:42:472
1294199182,15cyclictest239102chrt19:26:412
1294199182,15cyclictest16226-21cpuspeed_turbos23:05:132
1294199182,15cyclictest15550-21chrt19:14:552
1294199182,15cyclictest10611-21latency20:00:182
1294199182,15cyclictest0-21swapper/220:40:532
12941991816,1cyclictest0-21swapper/220:11:142
12941991816,1cyclictest0-21swapper/200:24:152
12941991816,1cyclictest0-21swapper/200:20:002
12941991815,2cyclictest21364-21chrt19:24:012
12941991815,1cyclictest0-21swapper/223:40:092
12941991815,1cyclictest0-21swapper/221:50:062
12941991814,3cyclictest3989-21H222:10:212
12941991814,3cyclictest0-21swapper/223:39:382
12941991813,4cyclictest0-21swapper/219:35:162
1294199181,16cyclictest31823-21grep00:30:122
1294199181,15cyclictest3981-21H222:10:212
1294199180,2cyclictest3991-21H222:10:212
1294199180,2cyclictest30984-21/usr/sbin/munin23:30:182
1294199180,17cyclictest3979-21H222:10:212
1294199180,17cyclictest2324-21cpuspeed_turbos20:45:132
1294199180,17cyclictest0-21swapper/221:35:212
1294199180,17cyclictest0-21swapper/221:10:172
1294099182,1cyclictest3987-21H222:10:211
1294099182,15cyclictest12721-21chrt21:01:141
12940991816,1cyclictest0-21swapper/120:05:171
12940991814,3cyclictest1829-21systemd-journal22:22:071
1294099181,15cyclictest31969-21nfsd419:40:191
1294099180,2cyclictest4035-21H222:10:211
1294099180,2cyclictest3976-21H222:10:211
1294099180,17cyclictest3991-21H222:10:211
1294099180,17cyclictest3976-21H222:10:211
1294099180,17cyclictest23855-21sshd21:21:401
1294099180,16cyclictest3987-21H222:10:211
1294099180,15cyclictest3979-21H222:10:211
12939991816,1cyclictest9-21ksoftirqd/023:14:490
12939991816,1cyclictest0-21swapper/020:04:010
12939991815,2cyclictest3979-21H222:10:210
12939991815,1cyclictest3989-21H222:10:210
12939991814,3cyclictest4099-21H222:10:210
12939991814,3cyclictest3979-21H222:10:210
1293999181,16cyclictest3987-21H222:10:210
1293999180,2cyclictest3989-21H222:10:210
1293999180,2cyclictest3976-21H222:10:210
1293999180,17cyclictest3981-21H222:10:210
1293999180,17cyclictest16503-21nfsd420:10:200
1293999180,16cyclictest20562-21nvmesmart_nvme019:20:200
12941991714,2cyclictest7908-21apache_volume22:50:122
12941991714,2cyclictest6830-21apache_volume19:55:122
12941991714,2cyclictest6340-21cron21:50:002
12941991714,2cyclictest4367-21cstates19:50:142
12941991714,2cyclictest3976-21H222:10:212
12941991714,2cyclictest27795-21cstates21:30:142
12941991714,2cyclictest24858-21cstates23:20:152
12941991714,2cyclictest23918-21cstates22:20:142
12941991714,2cyclictest21803-21cpuspeed_turbos23:15:132
12941991714,2cyclictest15583-21df_inode22:05:172
12941991714,2cyclictest13461-21grep21:05:142
12941991714,2cyclictest12881-21cut22:00:152
1294199170,2cyclictest30337-21pzem_power22:30:212
1294199170,1cyclictest0-21swapper/221:25:132
1294199170,1cyclictest0-21swapper/200:05:152
1294199170,16cyclictest6401-21grep23:45:132
1294199170,16cyclictest5240-21apache_volume20:50:132
1294199170,16cyclictest5240-21apache_volume20:50:132
1294199170,16cyclictest4099-21H222:10:212
1294199170,16cyclictest30630-21awk19:40:142
1294199170,16cyclictest20946-21cat22:15:132
1294199170,16cyclictest19788-21cat23:10:172
1294199170,16cyclictest10237-21wget21:55:152
1294199170,16cyclictest10209-21chrt23:50:152
12940991715,1cyclictest142892chrt23:57:351
12940991714,2cyclictest7277-21expr19:55:131
12940991714,2cyclictest4099-21H222:10:211
12940991714,2cyclictest4099-21H222:10:211
12940991714,2cyclictest3987-21H222:10:211
12940991714,2cyclictest3985-21H222:10:211
12940991714,2cyclictest3985-21H222:10:211
12940991714,2cyclictest27530-21ntp_states20:30:181
12940991714,2cyclictest26979-21if_enp1s000:20:151
12940991714,2cyclictest22150-21ps20:20:221
12940991714,2cyclictest21679-21sed21:20:001
12940991714,2cyclictest21679-21sed21:20:001
12940991714,2cyclictest20177-21latency_hist22:15:011
12940991714,2cyclictest17743-21ntp_states21:10:201
1294099171,15cyclictest0-21swapper/120:15:171
1294099170,2cyclictest8224-21ls20:55:131
1294099170,2cyclictest3991-21H222:10:211
1294099170,2cyclictest3265-21ubuntu-distro-i21:45:011
1294099170,2cyclictest26575-21expr22:25:141
1294099170,2cyclictest21730-21apache_accesses23:15:111
1294099170,2cyclictest19070-21ntp_states00:05:201
1294099170,2cyclictest16406-21ps00:00:181
1294099170,2cyclictest14689-21cut21:05:181
1294099170,2cyclictest10398-21/usr/sbin/munin23:50:171
1294099170,1cyclictest4099-21H222:10:211
1294099170,1cyclictest0-21swapper/123:00:171
1294099170,16cyclictest9124-21nfsd422:50:181
1294099170,16cyclictest5601-21lxd21:46:491
1294099170,16cyclictest3991-21H222:10:211
1294099170,16cyclictest3981-21H222:10:211
1294099170,16cyclictest3979-21H222:10:211
1294099170,16cyclictest3976-21H222:10:211
1294099170,16cyclictest3591-21awk00:35:181
1294099170,16cyclictest29998-21apache_volume21:35:121
1294099170,16cyclictest22761-21mii-tool19:25:161
1294099170,16cyclictest17719-21awk23:05:201
1294099170,16cyclictest10020-21cat21:55:141
12939991715,1cyclictest0-21swapper/021:45:180
12939991715,1cyclictest0-21swapper/019:26:440
12939991715,1cyclictest0-21swapper/000:10:190
12939991714,2cyclictest3991-21H222:10:210
12939991714,2cyclictest3987-21H222:10:210
12939991714,2cyclictest3987-21H222:10:210
12939991714,2cyclictest3985-21H222:10:210
12939991714,2cyclictest3981-21H222:10:210
12939991714,2cyclictest3979-21H222:10:210
12939991714,2cyclictest3053-21systemd-logind21:36:510
12939991714,2cyclictest27167-21sed20:30:170
12939991714,2cyclictest12807-21cat22:00:150
12939991714,2cyclictest0-21swapper/019:50:400
12939991714,1cyclictest0-21swapper/022:30:130
1293999171,1cyclictest0-21swapper/019:45:000
1293999171,15cyclictest18043-21timerwakeupswit23:05:200
1293999170,2cyclictest3981-21H222:10:210
1293999170,2cyclictest3327-21missed_timers22:40:170
1293999170,2cyclictest13105-21kernelversion23:55:160
1293999170,1cyclictest3989-21H222:10:210
1293999170,16cyclictest4099-21H222:10:210
1293999170,16cyclictest4035-21H222:10:210
1293999170,16cyclictest3985-21H222:10:210
1293999170,16cyclictest3981-21H222:10:210
1293999170,16cyclictest3976-21H222:10:210
1293999170,16cyclictest32090-21cstates20:40:150
1293999170,16cyclictest2166-21/usr/sbin/munin20:45:170
1293999170,16cyclictest1990-21ntpq21:40:190
1293999170,16cyclictest18587-21hddtemp_smartct22:10:150
1293999170,16cyclictest16312-21chrt21:10:030
1293999170,16cyclictest15892-21snapd00:05:270
1293999170,16cyclictest10983-21pzem_power23:50:190
1293999170,15cyclictest3976-21H222:10:210
12940991614,1cyclictest0-21swapper/123:20:131
12940991614,1cyclictest0-21swapper/122:05:151
12940991614,1cyclictest0-21swapper/121:50:141
12940991614,1cyclictest0-21swapper/100:30:141
12940991612,2cyclictest0-21swapper/120:45:131
1294099160,2cyclictest28922-21cpu00:25:141
1294099160,2cyclictest23413-21apache_processe20:25:131
1294099160,1cyclictest0-21swapper/120:10:231
1294099160,15cyclictest6318-21apache_accesses23:45:101
1294099160,15cyclictest31448-21processes23:30:191
1294099160,15cyclictest20603-21apache_processe22:15:121
1294099160,15cyclictest16991-21latency19:15:171
1294099160,15cyclictest0-21swapper/122:45:181
1294099160,15cyclictest0-21swapper/121:30:171
12939991614,1cyclictest7421-21/usr/sbin/munin19:55:150
12939991614,1cyclictest0-21swapper/023:45:120
12939991614,1cyclictest0-21swapper/023:35:120
12939991614,1cyclictest0-21swapper/023:15:140
12939991614,1cyclictest0-21swapper/020:55:160
12939991614,1cyclictest0-21swapper/020:20:150
12939991614,1cyclictest0-21swapper/019:16:220
1293999160,1cyclictest6130-21latency22:45:170
1293999160,15cyclictest30849-21kernelversion23:30:160
1293999160,15cyclictest1035-21thermald20:25:220
1293999160,15cyclictest0-21swapper/022:05:240
1293999160,15cyclictest0-21swapper/021:15:220
1293999160,15cyclictest0-21swapper/021:15:210
1293999150,1cyclictest0-21swapper/000:00:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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