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2026-05-26 - 03:23
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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 376 highest latencies:
System rackdslot0.osadl.org (updated Tue May 26, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2448999290,0cyclictest0-21swapper/200:15:142
24484992715,11cyclictest4672-21nfsd400:15:181
24489992414,5cyclictest0-21swapper/222:25:132
24484992219,2cyclictest28971-21latency_hist00:05:011
24484992112,0cyclictest0-21swapper/121:50:151
2448499210,3cyclictest0-21swapper/100:25:011
24489992015,4cyclictest399-20systemd-journal19:50:012
24483992017,2cyclictest441-21sshd21:19:060
2448999194,1cyclictest0-21swapper/200:33:472
2448999193,1cyclictest28-21ksoftirqd/220:09:152
2448999193,1cyclictest17551-21http_loadtime22:45:162
2448999192,1cyclictest0-21swapper/223:20:182
24489991917,1cyclictest29291-21pzem_power23:05:192
24489991916,2cyclictest32410-21cut00:10:012
2448999190,18cyclictest843-21systemd-network22:38:292
2448999190,18cyclictest843-21systemd-network22:38:282
2448999190,17cyclictest3987-21H222:10:212
2448999190,17cyclictest3979-21H222:10:212
2448999190,16cyclictest4035-21H222:10:212
2448999190,16cyclictest3981-21H222:10:212
2448499193,15cyclictest21-21ksoftirqd/100:27:341
2448499190,2cyclictest3991-21H222:10:211
2448499190,2cyclictest3976-21H222:10:211
2448499190,18cyclictest0-21swapper/121:30:121
2448499190,16cyclictest4099-21H222:10:211
2448399192,16cyclictest26462-21cut00:00:000
2448399190,2cyclictest4099-21H222:10:210
2448399190,2cyclictest4035-21H222:10:210
2448399190,16cyclictest3987-21H222:10:210
24489991816,1cyclictest0-21swapper/222:56:322
24489991815,2cyclictest27156-21ls20:10:142
24489991815,2cyclictest26096-21chrt22:03:502
24489991814,3cyclictest3985-21H222:10:212
24489991814,3cyclictest3976-21H222:10:212
24489991814,2cyclictest3991-21H222:10:212
2448999180,2cyclictest3989-21H222:10:212
2448999180,2cyclictest3983-21H222:10:212
2448999180,1cyclictest3976-21H222:10:212
2448999180,17cyclictest843-21systemd-network00:37:542
2448999180,17cyclictest3991-21H222:10:212
2448999180,17cyclictest10151-21lxd19:32:492
2448999180,17cyclictest0-21swapper/220:00:152
2448999180,16cyclictest4035-21H222:10:212
2448999180,16cyclictest3983-21H222:10:212
24484991815,2cyclictest5277-21taskset20:29:381
24484991815,2cyclictest5277-21taskset20:29:371
24484991815,2cyclictest3991-21H222:10:211
24484991814,3cyclictest3979-21H222:10:211
24484991814,3cyclictest10151-21lxd20:10:491
24484991814,2cyclictest3989-21H222:10:211
2448499180,2cyclictest4035-21H222:10:211
2448499180,17cyclictest4099-21H222:10:211
2448499180,17cyclictest3991-21H222:10:211
2448499180,17cyclictest3983-21H222:10:211
2448499180,17cyclictest3983-21H222:10:211
2448499180,15cyclictest3991-21H222:10:211
2448499180,15cyclictest3989-21H222:10:211
2448499180,15cyclictest3985-21H222:10:211
2448399182,15cyclictest14312-21systemctl23:35:190
24483991816,1cyclictest9-21ksoftirqd/019:59:140
24483991816,1cyclictest5116-21ntp_kernel_pll_19:30:180
24483991815,2cyclictest21651-21smtp22:52:230
24483991815,2cyclictest18058-21grep22:45:180
24483991814,3cyclictest3983-21H222:10:210
2448399181,2cyclictest10676-21sort20:39:000
2448399180,3cyclictest3981-21H222:10:210
2448399180,2cyclictest4099-21H222:10:210
2448399180,16cyclictest3976-21H222:10:210
2448399180,15cyclictest3989-21H222:10:210
2448399180,15cyclictest0-21swapper/021:50:140
2448999172,1cyclictest28-21ksoftirqd/223:55:562
24489991716,1cyclictest28-21ksoftirqd/200:10:522
24489991715,1cyclictest0-21swapper/220:55:172
24489991715,1cyclictest0-21swapper/219:50:212
24489991714,2cyclictest8707-21cstates20:35:132
24489991714,2cyclictest6975-21cpuspeed_turbos21:30:122
24489991714,2cyclictest5644-21ls20:30:012
24489991714,2cyclictest5644-21ls20:30:002
24489991714,2cyclictest5370-21grep21:25:192
24489991714,2cyclictest3991-21H222:10:212
24489991714,2cyclictest3983-21H222:10:212
24489991714,2cyclictest3981-21H222:10:212
24489991714,2cyclictest3604-21latency_hist19:30:012
24489991714,2cyclictest19728-21nfsd419:55:182
24489991714,2cyclictest14505-21snapd22:23:092
24489991714,2cyclictest1351-21lxd23:38:352
24489991714,2cyclictest11394-21ntp_states23:30:182
24489991714,1cyclictest0-21swapper/223:15:142
24489991714,1cyclictest0-21swapper/221:55:072
2448999170,2cyclictest9860-21nvmesmart_nvme022:30:192
2448999170,2cyclictest6944-21nfsd420:30:192
2448999170,2cyclictest6745-21apt-config19:35:022
2448999170,2cyclictest31223-21expr21:15:152
2448999170,2cyclictest25034-21taskset23:00:112
2448999170,2cyclictest19290-21kernelversion23:45:162
2448999170,2cyclictest16181-21interrupts21:45:162
2448999170,16cyclictest988-21irqbalance19:19:002
2448999170,16cyclictest3991-21H222:10:212
2448999170,16cyclictest3987-21H222:10:212
2448999170,16cyclictest3985-21H222:10:212
2448999170,16cyclictest3979-21H222:10:212
2448999170,16cyclictest26839-21cstates00:00:132
2448999170,16cyclictest23838-21pzem_voltage21:00:212
2448999170,16cyclictest17972-21munin-run23:45:002
2448999170,16cyclictest15887-21timerandwakeup20:45:222
2448999170,16cyclictest14038-21latency_hist20:45:012
2448499172,1cyclictest21-21ksoftirqd/119:51:271
24484991715,1cyclictest0-21swapper/123:25:141
24484991714,2cyclictest6517-21if_eno120:30:161
24484991714,2cyclictest4197-21apache_processe21:25:131
24484991714,2cyclictest3991-21H222:10:211
24484991714,2cyclictest3987-21H222:10:211
24484991714,2cyclictest3985-21H222:10:211
24484991714,2cyclictest32712-21apache_processe00:10:101
24484991714,2cyclictest30718-21smartctl00:05:181
24484991714,2cyclictest26424-21ntp_states23:00:191
24484991714,2cyclictest21069-21pzem_current22:50:201
24484991714,2cyclictest15864-21df_inode21:45:151
24484991714,2cyclictest14347-21cstates20:45:151
24484991714,2cyclictest10010-21cat21:35:131
2448499171,1cyclictest11942-21taskset23:30:211
2448499171,15cyclictest19564-21apt-get20:55:131
2448499170,2cyclictest4688-21switchtime22:20:221
2448499170,2cyclictest3991-21H222:10:211
2448499170,2cyclictest3989-21H222:10:211
2448499170,2cyclictest3979-21H222:10:211
2448499170,2cyclictest28070-21tr21:10:131
2448499170,2cyclictest26350-21cat00:00:011
2448499170,2cyclictest21441-21expr20:00:151
2448499170,2cyclictest13160-21fschecks_count21:40:151
2448499170,1cyclictest0-21swapper/121:55:231
2448499170,16cyclictest4099-21H222:10:211
2448499170,16cyclictest4099-21H222:10:211
2448499170,16cyclictest402-21df20:20:141
2448499170,16cyclictest3991-21H222:10:211
2448499170,16cyclictest3991-21H222:10:211
2448499170,16cyclictest3989-21H222:10:211
2448499170,16cyclictest3981-21H222:10:211
2448499170,16cyclictest3976-21H222:10:211
2448499170,16cyclictest3976-21H222:10:211
2448499170,16cyclictest30222-21hddtemp_smartct22:10:141
2448499170,16cyclictest26009-21taskset20:08:141
2448499170,16cyclictest23175-21chrt23:52:081
2448499170,16cyclictest18717-21expr19:55:131
2448499170,16cyclictest15383-21nfsd422:40:181
2448499170,16cyclictest14057-21plymouth19:45:201
2448499170,16cyclictest12721-21apache_processe23:35:111
24483991714,2cyclictest4283-21awk22:20:190
24483991714,2cyclictest4035-21H222:10:210
24483991714,2cyclictest3989-21H222:10:210
24483991714,2cyclictest3989-21H222:10:210
24483991714,2cyclictest3985-21H222:10:210
24483991714,2cyclictest3985-21H222:10:210
24483991714,2cyclictest3983-21H222:10:210
24483991714,2cyclictest3983-21H222:10:210
24483991714,2cyclictest3983-21H222:10:210
24483991714,2cyclictest3976-21H222:10:210
24483991714,2cyclictest3414-21master19:11:020
24483991714,2cyclictest29694-21users23:05:220
24483991714,2cyclictest26825-21tr22:05:130
24483991714,2cyclictest26573-21apache_volume00:00:120
24483991714,2cyclictest25033-21apache_volume23:00:120
24483991714,2cyclictest14504-21snapd23:10:590
24483991714,2cyclictest13967-21apt-get00:35:020
2448399170,2cyclictest8237-21awk21:30:180
2448399170,2cyclictest6823-21sed19:35:020
2448399170,2cyclictest3991-21H222:10:210
2448399170,2cyclictest3991-21H222:10:210
2448399170,2cyclictest26810-21/usr/sbin/munin21:05:210
2448399170,2cyclictest16439-21nfsd419:50:190
2448399170,2cyclictest15867-21df_inode21:45:150
2448399170,2cyclictest1525-21lxd20:22:500
2448399170,2cyclictest12632-21grep20:40:160
2448399170,1cyclictest4099-21H222:10:210
2448399170,16cyclictest9034-21df22:30:140
2448399170,16cyclictest4856-21ntp_states00:15:190
2448399170,16cyclictest3987-21H222:10:210
2448399170,16cyclictest3985-21H222:10:210
2448399170,16cyclictest3311-21chrt21:22:140
2448399170,16cyclictest24300-21ls22:00:120
2448399170,16cyclictest20959-21sh20:55:190
2448399170,16cyclictest1498-21mailstats22:15:190
2448399170,16cyclictest0-21swapper/022:25:200
2448399170,15cyclictest3987-21H222:10:210
2448399170,15cyclictest3981-21H222:10:210
2448399170,15cyclictest0-21swapper/019:17:360
24489991614,1cyclictest0-21swapper/219:10:132
2448999160,15cyclictest0-21swapper/219:40:132
24484991614,1cyclictest22306-21apt-get21:00:121
24484991613,2cyclictest30645-21apache_processe23:10:101
2448499160,15cyclictest18379-21apache_volume23:45:121
2448499160,15cyclictest0-21swapper/123:40:111
24483991614,1cyclictest24787-21kernelversion20:05:180
24483991614,1cyclictest0-21swapper/020:00:220
24483991614,1cyclictest0-21swapper/019:20:150
2448399160,2cyclictest4196-21apache_accesses21:25:130
2448399160,15cyclictest3985-21H222:10:210
2448399160,15cyclictest32554-21apt-config00:10:010
2448399160,15cyclictest19354-21latency23:45:170
2448399160,15cyclictest177882chrt23:42:550
2448399160,15cyclictest0-21swapper/021:40:100
2448399160,15cyclictest0-21swapper/000:30:170
2448399160,15cyclictest0-21swapper/000:25:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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