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2026-03-31 - 09:23
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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 Mar 31, 2026 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1659099260,16cyclictest0-21swapper/120:59:551
1659199247,13cyclictest0-21swapper/220:02:192
1659099220,21cyclictest3573-21latency_hist22:35:021
1659199214,2cyclictest3903-21cpuspeed_turbos22:35:142
16590992117,3cyclictest0-21swapper/120:38:571
1658999215,9cyclictest0-21swapper/019:17:140
1659199202,15cyclictest11526-21ntp_kernel_pll_21:50:182
1659199194,1cyclictest0-21swapper/223:21:072
16591991916,2cyclictest17177-21cut21:05:012
1659199190,17cyclictest6749-21proc_pri23:35:202
1659199190,16cyclictest3981-21H222:10:212
16590991916,1cyclictest0-21swapper/123:49:011
1659099190,18cyclictest29635-21nfsd421:25:171
1659099190,16cyclictest0-21swapper/119:12:461
16589991914,4cyclictest0-21swapper/023:15:000
16589991914,2cyclictest15231-21awk22:00:000
16591991814,3cyclictest0-21swapper/200:27:072
1659199181,16cyclictest30614-21grep19:35:012
1659199180,2cyclictest3989-21H222:10:212
1659199180,17cyclictest28578-21cstates21:25:142
1659199180,16cyclictest31201-21nfsd420:30:182
1659099182,15cyclictest25826-21seq19:25:141
1659099182,15cyclictest1666-21chrt23:28:071
16590991815,2cyclictest10837-21http_loadtime19:55:161
16590991814,3cyclictest19726-21dump-pmu-power21:10:001
16590991814,3cyclictest1525-21lxd23:20:351
16590991814,3cyclictest0-21swapper/119:20:001
1659099181,2cyclictest710-21chrt21:32:191
1659099181,16cyclictest22905-21chrt23:08:281
1659099180,17cyclictest11893-21apt-key22:50:011
1659099180,17cyclictest11893-21apt-key22:50:001
1659099180,15cyclictest3981-21H222:10:211
1658999182,1cyclictest0-21swapper/000:28:560
16589991814,3cyclictest19562-21sh21:09:000
1658999180,1cyclictest0-21swapper/021:16:120
1658999180,17cyclictest3898-21chrt21:38:260
1659199177,9cyclictest0-21swapper/219:12:152
16591991715,1cyclictest3988-21H222:10:212
16591991715,1cyclictest20698-21grep20:10:212
16591991715,1cyclictest0-21swapper/222:10:232
16591991715,1cyclictest0-21swapper/220:09:492
16591991714,2cyclictest9671-21expr22:45:132
16591991714,2cyclictest9671-21expr22:45:132
16591991714,2cyclictest9035-21wc20:50:142
16591991714,2cyclictest7522-21awk20:45:172
16591991714,2cyclictest29062-21pzem_current22:20:182
16591991714,2cyclictest29062-21pzem_current22:20:182
16591991714,2cyclictest19845-21missed_timers22:05:182
16591991714,2cyclictest19730-21perf21:10:012
16591991714,2cyclictest16800-21pzem_voltage22:55:212
16591991714,2cyclictest12213-21ls20:55:142
1659199170,2cyclictest7412-21anvil23:41:062
1659199170,2cyclictest7412-21anvil23:41:052
1659199170,2cyclictest4878-21nfsd420:40:182
1659199170,2cyclictest399-20systemd-journal21:59:562
1659199170,2cyclictest27235-21grep20:25:152
1659199170,2cyclictest2694-21chrt22:30:492
1659199170,2cyclictest24060-21nfsd421:15:192
1659199170,2cyclictest21915-21cpuspeed_turbos20:15:142
1659199170,2cyclictest16344-21cron23:55:012
1659199170,2cyclictest1521-21lxd00:00:352
1659199170,2cyclictest13457-21anvil23:47:472
1659199170,16cyclictest8594-21vmstat22:40:232
1659199170,16cyclictest24582-21sed23:10:192
1659199170,16cyclictest22257-21pickup23:18:172
1659199170,16cyclictest20509-21expr19:15:142
1659199170,16cyclictest16864-21cpuspeed_turbos23:55:172
1659199170,16cyclictest1007-21idleruntime-cro21:35:002
16590991715,1cyclictest0-21swapper/120:50:181
16590991714,2cyclictest8562-21chrt20:49:411
16590991714,2cyclictest8448-21cat19:50:161
16590991714,2cyclictest3707-21master20:43:491
16590991714,2cyclictest25542-21needreboot22:15:181
16590991714,2cyclictest21119-21runrttasks20:13:051
16590991714,2cyclictest14611-21threads21:55:231
16590991713,3cyclictest10945-21latency_hist23:45:011
16590991713,3cyclictest10945-21latency_hist23:45:001
1659099171,2cyclictest27082-21nvmesmart_nvme000:10:191
1659099171,15cyclictest0-21swapper/123:38:581
1659099171,15cyclictest0-21swapper/123:15:171
1659099170,2cyclictest8729-21grep21:45:191
1659099170,2cyclictest4709-21apache_processe21:40:121
1659099170,2cyclictest3293-21systemctl00:25:201
1659099170,2cyclictest20727-21chrt22:05:261
1659099170,2cyclictest1035-21thermald22:10:221
1659099170,1cyclictest3991-21H222:10:211
1659099170,1cyclictest3991-21H222:10:211
1659099170,16cyclictest699-21chrt19:37:411
1659099170,16cyclictest32364-21nfsd400:20:181
1659099170,16cyclictest3104-21pzem_energy21:35:201
1659099170,16cyclictest28512-21grep19:30:141
1659099170,16cyclictest24822-21nfsd423:10:191
1659099170,16cyclictest23882-21sed21:15:181
1659099170,16cyclictest22246-21cat20:15:141
1659099170,16cyclictest16745-21snapd21:12:491
1659099170,16cyclictest1522-21lxd22:22:511
1659099170,16cyclictest1522-21lxd22:22:501
1659099170,16cyclictest10151-21lxd23:52:351
1658999173,10cyclictest11792-21munin-run22:50:010
1658999173,10cyclictest11792-21munin-run22:50:000
1658999172,1cyclictest25371-21latency22:15:170
16589991714,2cyclictest7863-21nfsd422:40:180
16589991714,2cyclictest3986-21H222:10:210
16589991714,2cyclictest32313-21expr23:25:140
16589991714,2cyclictest29846-21cron22:25:000
16589991714,2cyclictest25844-21ntp_states20:20:180
16589991714,2cyclictest24316-21cat20:20:010
16589991714,2cyclictest18513-21nfsd419:10:170
16589991714,2cyclictest1653-21nfsd420:35:180
16589991714,2cyclictest15194-21hddtemp_smartct21:00:160
16589991714,2cyclictest10515-21expr21:50:140
16589991714,1cyclictest0-21swapper/021:42:560
1658999171,1cyclictest0-21swapper/020:50:170
1658999171,15cyclictest0-21swapper/019:55:380
16589991710,6cyclictest0-21swapper/023:45:000
16589991710,6cyclictest0-21swapper/023:45:000
16589991710,6cyclictest0-21swapper/019:40:210
1658999170,2cyclictest6053-21ntp_offset19:45:190
1658999170,2cyclictest6053-21ntp_offset19:45:190
1658999170,2cyclictest5663-21expr23:35:150
1658999170,2cyclictest29258-21proxymap20:27:120
1658999170,2cyclictest26469-21kernelversion19:25:170
1658999170,16cyclictest7474-21cpuspeed_turbos19:50:140
1658999170,16cyclictest6146-21sshd22:39:180
1658999170,16cyclictest3337-21latency_hist22:35:010
1658999170,16cyclictest3053-21systemd-logind23:50:510
1658999170,16cyclictest29700-21tr21:25:180
1658999170,16cyclictest28911-21fschecks_count19:30:150
1658999170,16cyclictest28236-21latency_hist00:15:000
1658999170,16cyclictest22240-21df22:10:160
1658999170,16cyclictest21541-21date22:10:020
1658999170,16cyclictest20670-21ls21:10:140
1658999170,16cyclictest1856-21systemd-udevd00:16:520
1658999170,16cyclictest16766-21snapd20:57:480
1658999170,16cyclictest16744-21snapd00:20:180
1658999170,16cyclictest1503-21latency_hist19:40:010
1658999170,16cyclictest14549-21nfsd420:00:190
1658999170,16cyclictest12684-21ntpq23:45:190
1658999170,16cyclictest12302-21apt-key22:50:000
16591991614,1cyclictest7719-21cstates19:50:132
16591991614,1cyclictest0-21swapper/223:30:212
16591991614,1cyclictest0-21swapper/223:25:152
16591991614,1cyclictest0-21swapper/223:05:142
16591991614,1cyclictest0-21swapper/223:00:122
16591991614,1cyclictest0-21swapper/222:25:162
16591991614,1cyclictest0-21swapper/221:40:162
16591991614,1cyclictest0-21swapper/220:20:132
16591991614,1cyclictest0-21swapper/219:35:142
16591991614,1cyclictest0-21swapper/200:37:592
16591991613,2cyclictest4419-21pluginstate19:45:012
16591991613,2cyclictest28778-21expr00:15:132
16591991613,2cyclictest26945-21nfsd400:10:182
16591991613,2cyclictest15606-21/usr/sbin/munin22:00:162
1659199160,1cyclictest0-21swapper/200:20:152
1659199160,15cyclictest7036-21sed19:50:012
1659199160,15cyclictest7036-21sed19:50:002
1659199160,15cyclictest1724-21cstates21:35:142
1659199160,15cyclictest0-21swapper/221:50:002
1659199160,15cyclictest0-21swapper/221:20:182
1659199160,15cyclictest0-21swapper/220:35:142
1659199160,15cyclictest0-21swapper/200:30:132
1659199160,15cyclictest0-21swapper/200:05:232
16590991614,1cyclictest22687-21mv00:05:071
16590991614,1cyclictest12308-21dpkg22:50:001
16590991614,1cyclictest0-21swapper/123:55:171
16590991614,1cyclictest0-21swapper/123:31:341
16590991614,1cyclictest0-21swapper/122:37:381
16590991614,1cyclictest0-21swapper/122:25:111
16590991614,1cyclictest0-21swapper/121:50:171
16590991614,1cyclictest0-21swapper/120:30:131
16590991614,1cyclictest0-21swapper/120:20:141
16590991614,1cyclictest0-21swapper/119:40:171
16590991614,1cyclictest0-21swapper/100:35:121
16590991612,3cyclictest1526-21lxd22:58:501
1659099160,2cyclictest7093-21expr22:40:141
1659099160,2cyclictest28540-21ntp_kernel_err20:25:191
1659099160,1cyclictest23495-21http_loadtime19:20:151
1659099160,1cyclictest20538-21sed00:00:161
1659099160,15cyclictest26208-21fschecks_count21:20:151
1659099160,15cyclictest17980-21/usr/sbin/munin23:00:111
1659099160,15cyclictest15632-21apache_volume22:00:131
1659099160,15cyclictest0-21swapper/120:10:001
1659099160,15cyclictest0-21swapper/100:30:161
1659099160,15cyclictest0-21swapper/100:15:181
16589991614,1cyclictest21412-21grep23:05:150
16589991614,1cyclictest0-21swapper/022:55:150
16589991614,1cyclictest0-21swapper/022:00:150
16589991614,1cyclictest0-21swapper/021:30:150
16589991614,1cyclictest0-21swapper/020:45:130
16589991614,1cyclictest0-21swapper/019:20:110
16589991614,1cyclictest0-21swapper/000:30:100
16589991613,2cyclictest28156-21fschecks_count22:20:140
16589991613,2cyclictest28156-21fschecks_count22:20:130
16589991613,2cyclictest27653-21awk23:15:170
1658999161,14cyclictest0-21swapper/021:45:150
1658999160,1cyclictest0-21swapper/023:20:090
1658999160,15cyclictest7622-21cat00:35:150
1658999160,15cyclictest399-20systemd-journal23:30:180
1658999160,15cyclictest26811-21nfsd421:20:180
1658999160,15cyclictest19823-21expr00:00:140
1658999160,15cyclictest19506-21expr20:10:130
1658999160,15cyclictest0-21swapper/023:55:180
1658999160,15cyclictest0-21swapper/023:00:110
1658999160,15cyclictest0-21swapper/020:10:010
16591991512,2cyclictest21433-21awk21:10:192
1659199150,15cyclictest455-21plymouthd19:55:182
1659199150,14cyclictest0-21swapper/222:50:132
1659099150,15cyclictest0-21swapper/121:00:151
1658999150,1cyclictest0-21swapper/020:31:170
1658999150,1cyclictest0-21swapper/000:05:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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