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2026-03-30 - 06:54
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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 Mar 30, 2026 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2082499237,15cyclictest0-21swapper/121:15:191
2082499230,2cyclictest31352-21/usr/sbin/munin22:20:161
2082499230,17cyclictest23680-21latency_hist19:15:001
2082599226,1cyclictest0-21swapper/221:25:012
20825992212,5cyclictest0-21swapper/223:20:182
20824992214,7cyclictest0-21swapper/123:45:161
2082499220,2cyclictest5331-21expr22:30:191
2082499220,21cyclictest843-21systemd-network23:59:001
2082499220,21cyclictest30895-21cut00:15:011
2082499220,15cyclictest1407-21cat22:25:141
2082599213,17cyclictest4036-21H222:10:212
2082599213,17cyclictest4036-21H222:10:212
20825992117,3cyclictest0-21swapper/223:02:002
2082499212,1cyclictest21-21ksoftirqd/122:42:071
20824992115,5cyclictest0-21swapper/120:00:161
20824992114,6cyclictest24446-21df_inode19:15:151
20824992114,6cyclictest22502-21apt-get00:00:111
20824992114,6cyclictest0-21swapper/123:30:201
2082499211,19cyclictest0-21swapper/100:05:131
2082499210,2cyclictest5708-21latency_hist23:30:011
2082499210,2cyclictest19276-21latency_hist22:00:011
2082499210,2cyclictest14455-21df19:55:131
2082499210,20cyclictest29727-21cat19:25:141
2082499210,20cyclictest0-21swapper/122:45:121
2082499210,1cyclictest0-21swapper/122:50:121
2082499210,1cyclictest0-21swapper/122:50:121
2082499210,1cyclictest0-21swapper/120:30:141
2082499210,19cyclictest0-21swapper/122:15:141
2082499210,16cyclictest32434-21chrt20:25:381
2082499210,16cyclictest21354-21chrt20:05:431
2082499210,16cyclictest19886-21grep21:00:211
2082499210,15cyclictest5465-21latency00:25:151
2082499210,15cyclictest12538-21grep19:50:181
20824992014,5cyclictest32625-21/usr/sbin/munin00:15:231
20824992014,5cyclictest0-21swapper/122:00:131
20824992014,5cyclictest0-21swapper/122:00:131
20824992014,5cyclictest0-21swapper/120:45:121
20824992014,5cyclictest0-21swapper/120:35:181
20824992014,5cyclictest0-21swapper/100:37:041
20824992014,5cyclictest0-21swapper/100:20:191
20824992013,6cyclictest291312chrt23:13:081
20824992013,6cyclictest0-21swapper/123:15:161
20824992013,6cyclictest0-21swapper/119:40:231
20824992013,6cyclictest0-21swapper/119:20:141
20824992012,2cyclictest6006-21cat21:35:131
2082499200,1cyclictest9566-21missed_timers21:40:171
2082499200,1cyclictest0-21swapper/119:35:171
2082499200,19cyclictest8567-21ps22:35:191
2082499200,19cyclictest0-21swapper/123:54:451
2082499200,19cyclictest0-21swapper/123:42:041
2082499200,19cyclictest0-21swapper/123:35:141
2082499200,19cyclictest0-21swapper/121:50:221
2082499200,19cyclictest0-21swapper/120:40:191
2082499200,19cyclictest0-21swapper/120:40:181
2082499200,16cyclictest22640-21expr20:10:151
2082499200,15cyclictest32518-21cpuspeed_turbos23:20:141
2082499200,15cyclictest20354-21timerandwakeup22:55:201
2082499200,15cyclictest13836-21cut21:50:011
2082499200,15cyclictest0-21swapper/122:15:021
2082499200,14cyclictest0-21swapper/120:55:131
20823992016,3cyclictest0-21swapper/023:40:170
20823992016,3cyclictest0-21swapper/020:31:250
2082599193,15cyclictest28-21ksoftirqd/219:16:422
2082599192,16cyclictest12602-21nvmesmart_nvme021:45:192
20825991916,2cyclictest17272-21expr23:50:132
20825991916,2cyclictest0-21swapper/222:45:202
20825991914,2cyclictest3987-21H222:10:212
20824991914,4cyclictest3450-21gsd-color19:30:181
20824991914,4cyclictest0-21swapper/123:05:151
20824991913,5cyclictest32390-21expr21:25:181
2082499190,1cyclictest0-21swapper/121:10:161
2082499190,1cyclictest0-21swapper/100:30:161
2082499190,18cyclictest0-21swapper/122:05:211
2082499190,18cyclictest0-21swapper/121:30:151
2082499190,18cyclictest0-21swapper/121:07:111
2082499190,18cyclictest0-21swapper/120:20:171
2082499190,18cyclictest0-21swapper/119:45:141
2082499190,15cyclictest0-21swapper/120:15:231
2082499190,15cyclictest0-21swapper/120:15:221
2082499190,14cyclictest0-21swapper/121:20:141
2082599182,2cyclictest29442-21cpuspeed_turbos19:25:142
20825991815,2cyclictest7606-21chrt21:36:352
20825991815,2cyclictest4099-21H222:10:212
20825991815,1cyclictest3991-21H222:10:212
20825991815,1cyclictest0-21swapper/219:59:472
20825991813,4cyclictest24790-21cat20:15:002
2082599181,16cyclictest31235-21pzem23:15:202
2082599181,16cyclictest19819-21nfsd422:55:152
2082599180,2cyclictest4099-21H222:10:212
2082599180,2cyclictest3991-21H222:10:212
2082599180,17cyclictest5395-21sshd23:28:362
2082599180,17cyclictest455-21plymouthd22:05:132
2082599180,17cyclictest1522-21lxd21:50:482
20824991814,3cyclictest0-21swapper/120:51:231
20824991811,1cyclictest0-21swapper/123:00:141
2082399182,15cyclictest3381-21http_loadtime21:30:150
20823991816,1cyclictest0-21swapper/019:25:100
20823991810,4cyclictest0-21swapper/019:39:590
2082399180,3cyclictest24521-21fschecks_count21:10:150
2082399180,17cyclictest4035-21H222:10:210
2082399180,16cyclictest17865-21python322:55:010
2082399180,16cyclictest17865-21python322:55:010
20825991715,1cyclictest16628-21/usr/sbin/munin21:55:132
20825991715,1cyclictest0-21swapper/223:55:152
20825991715,1cyclictest0-21swapper/222:20:172
20825991715,1cyclictest0-21swapper/221:05:142
20825991714,2cyclictest9783-21date20:45:002
20825991714,2cyclictest9783-21date20:45:002
20825991714,2cyclictest5778-21cpuspeed_turbos19:40:152
20825991714,2cyclictest3991-21H222:10:212
20825991714,2cyclictest3871-21chrt20:34:282
20825991714,2cyclictest26873-21sed22:10:202
20825991714,2cyclictest2472-21pzem_power22:25:202
20825991714,2cyclictest17002-21pzem_energy22:50:172
20825991714,2cyclictest17002-21pzem_energy22:50:172
20825991714,2cyclictest1351-21lxd22:40:482
20825991714,2cyclictest12921-21ntp_kernel_pll_23:40:182
20825991713,2cyclictest9875-21nfsd423:35:182
2082599171,15cyclictest30005-21timerandwakeup00:10:222
2082599171,15cyclictest0-21swapper/219:50:172
2082599170,2cyclictest7809-21perl22:35:152
2082599170,2cyclictest6490-21munin-run22:35:002
2082599170,2cyclictest3991-21H222:10:212
2082599170,2cyclictest32569-21chrt20:27:222
2082599170,2cyclictest28830-21missed_timers22:15:182
2082599170,2cyclictest15987-21cat20:55:132
2082599170,1cyclictest4035-21H222:10:212
2082599170,16cyclictest9868-21cut00:35:012
2082599170,16cyclictest9379-21irqstats21:40:152
2082599170,16cyclictest6492-21expr23:30:132
2082599170,16cyclictest5137-21http_loadtime20:35:162
2082599170,16cyclictest4469-21cpu00:25:132
2082599170,16cyclictest28146-21expr20:20:142
2082599170,16cyclictest25280-21ntp_offset21:10:182
2082599170,16cyclictest23863-21ntp_kernel_pll_00:00:162
2082599170,16cyclictest17863-21nfsd420:00:202
2082599170,16cyclictest1035-21thermald23:05:202
20823991715,1cyclictest0-21swapper/021:45:010
20823991714,2cyclictest7260-21sendmail_mailqu19:40:230
20823991714,2cyclictest4035-21H222:10:210
20823991714,2cyclictest4035-21H222:10:210
20823991714,2cyclictest31862-21ntp_states20:25:180
20823991714,2cyclictest25229-21ntpq19:15:180
20823991714,2cyclictest1856-21systemd-udevd20:56:520
20823991714,2cyclictest17021-21apache_accesses23:50:110
20823991714,2cyclictest16440-21latency_hist21:55:000
20823991714,1cyclictest0-21swapper/023:10:160
20823991713,3cyclictest843-21systemd-network22:40:030
2082399171,15cyclictest0-21swapper/021:45:170
2082399170,3cyclictest4035-21H222:10:210
2082399170,2cyclictest9506-21/usr/sbin/munin23:35:150
2082399170,2cyclictest3976-21H222:10:210
2082399170,2cyclictest28750-21expr00:10:130
2082399170,2cyclictest28040-21expr22:15:150
2082399170,1cyclictest0-21swapper/019:47:460
2082399170,16cyclictest9766-21cat22:40:010
2082399170,16cyclictest9350-21seq20:41:300
2082399170,16cyclictest9350-21seq20:41:300
2082399170,16cyclictest4035-21H222:10:210
2082399170,16cyclictest3053-21systemd-logind22:56:520
2082399170,16cyclictest26849-21grep19:20:130
2082399170,16cyclictest21296-21grep19:10:140
2082399170,16cyclictest15412-21cut20:55:010
2082399170,16cyclictest12716-21/usr/sbin/munin22:45:160
2082399170,16cyclictest1143-21ntpq21:25:230
20825991614,1cyclictest0-21swapper/200:05:192
20825991612,3cyclictest18292-21taskset21:00:142
2082599160,2cyclictest27190-21expr21:15:162
2082599160,15cyclictest471-21cat21:25:192
2082599160,15cyclictest3856-21chrt00:23:482
2082599160,15cyclictest31063-21cpuspeed_turbos00:15:142
2082599160,15cyclictest27913-21latency23:10:152
2082599160,15cyclictest14528-21expr23:45:132
2082599160,15cyclictest10486-21df00:35:142
2082599160,15cyclictest0-21swapper/222:00:172
2082599160,15cyclictest0-21swapper/222:00:162
2082599160,15cyclictest0-21swapper/220:50:142
20823991614,1cyclictest0-21swapper/023:15:140
20823991614,1cyclictest0-21swapper/023:00:100
20823991614,1cyclictest0-21swapper/021:55:190
20823991614,1cyclictest0-21swapper/021:00:150
20823991614,1cyclictest0-21swapper/020:45:160
20823991614,1cyclictest0-21swapper/020:15:100
20823991614,1cyclictest0-21swapper/020:15:090
20823991614,1cyclictest0-21swapper/000:30:170
20823991614,1cyclictest0-21swapper/000:25:120
20823991614,1cyclictest0-21swapper/000:20:180
20823991613,2cyclictest1856-21systemd-udevd23:56:510
2082399161,15cyclictest0-21swapper/022:05:120
2082399160,1cyclictest7043-21missed_timers23:30:170
2082399160,1cyclictest32379-21open_files00:15:210
2082399160,1cyclictest15423-21pzem_voltage19:55:190
2082399160,1cyclictest10582-21fschecks_time00:35:150
2082399160,1cyclictest0-21swapper/023:25:150
2082399160,15cyclictest7289-21switchtime21:35:190
2082399160,15cyclictest3987-21H222:10:210
2082399160,15cyclictest30764-21ntp_states21:20:170
2082399160,15cyclictest24090-21apache_processe23:05:100
2082399160,15cyclictest0-21swapper/023:46:340
2082399160,15cyclictest0-21swapper/023:20:140
2082399160,15cyclictest0-21swapper/022:25:140
2082399160,15cyclictest0-21swapper/022:20:180
2082399160,15cyclictest0-21swapper/022:00:130
2082399160,15cyclictest0-21swapper/022:00:120
2082399160,15cyclictest0-21swapper/021:08:590
2082399160,15cyclictest0-21swapper/020:05:010
2082399160,15cyclictest0-21swapper/019:50:150
20823991514,1cyclictest0-21swapper/000:05:170
2082399150,15cyclictest0-21swapper/022:10:140
2082399150,14cyclictest0-21swapper/000:00:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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