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2026-06-29 - 11:32
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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 Jun 29, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1186999250,20cyclictest15614-21fschecks_time21:10:150
1187999247,15cyclictest0-21swapper/223:50:162
11874992321,1cyclictest1100-21snmpd23:12:161
1187499230,5cyclictest0-21swapper/122:47:111
11874992222,0cyclictest0-21swapper/100:28:311
1187499220,18cyclictest0-21swapper/123:09:141
1186999220,21cyclictest843-21systemd-network00:13:030
1186999220,18cyclictest0-21swapper/019:32:400
11879992117,3cyclictest19953-21php7.000:09:012
1186999211,2cyclictest1114-21lldpd23:34:550
1187999202,3cyclictest0-21swapper/221:38:322
1187999202,15cyclictest0-21swapper/220:26:082
11879992018,1cyclictest0-21swapper/222:15:042
1187999200,3cyclictest23766-21nvmesmart_nvme022:20:192
1187999200,20cyclictest0-21swapper/223:10:112
11874992018,1cyclictest0-21swapper/121:20:281
11874992018,1cyclictest0-21swapper/121:20:281
1187999192,16cyclictest3979-21H222:10:212
11879991917,1cyclictest0-21swapper/223:38:512
11879991917,1cyclictest0-21swapper/221:01:402
11879991916,2cyclictest25742-21cut00:20:002
11879991916,2cyclictest25742-21cut00:19:592
11879991916,2cyclictest0-21swapper/221:14:502
11879991914,4cyclictest0-21swapper/222:44:322
11879991914,1cyclictest0-21swapper/221:32:562
1187999190,2cyclictest3991-21H222:10:212
1187999190,2cyclictest3981-21H222:10:212
1187999190,18cyclictest4035-21H222:10:212
1187999190,18cyclictest0-21swapper/223:22:292
1187999190,18cyclictest0-21swapper/220:20:072
1187999190,16cyclictest3989-21H222:10:212
1187999190,16cyclictest3989-21H222:10:212
1187499194,1cyclictest21-21ksoftirqd/100:10:181
1187499192,2cyclictest24867-21timerandwakeup21:25:231
11874991917,1cyclictest21-21ksoftirqd/121:50:481
11874991916,2cyclictest3979-21H222:10:211
1187499190,18cyclictest4099-21H222:10:211
1187499190,16cyclictest4099-21H222:10:211
1187499190,16cyclictest4035-21H222:10:211
11869991917,1cyclictest0-21swapper/020:56:060
11869991917,1cyclictest0-21swapper/020:56:060
11869991915,2cyclictest13516-21nfsd419:10:180
1186999191,17cyclictest0-21swapper/023:24:030
1186999190,2cyclictest3991-21H222:10:210
1186999190,2cyclictest3985-21H222:10:210
1186999190,16cyclictest4099-21H222:10:210
11879991817,1cyclictest28-21ksoftirqd/221:27:242
11879991815,2cyclictest3991-21H222:10:212
11879991815,2cyclictest0-21swapper/223:05:062
11879991814,3cyclictest4099-21H222:10:212
11879991814,3cyclictest4099-21H222:10:212
11879991814,3cyclictest3983-21H222:10:212
1187999181,16cyclictest8487-21smtpd20:55:302
1187999181,16cyclictest8487-21smtpd20:55:292
1187999180,3cyclictest3989-21H222:10:212
1187999180,2cyclictest3991-21H222:10:212
1187999180,2cyclictest3991-21H222:10:212
1187999180,17cyclictest28145-21sshd00:23:382
1187499185,11cyclictest0-21swapper/122:15:151
11874991816,1cyclictest21-21ksoftirqd/121:37:231
11874991815,2cyclictest1100-21snmpd22:41:021
11874991814,3cyclictest4035-21H222:10:211
11874991814,3cyclictest3976-21H222:10:211
11874991814,3cyclictest0-21swapper/122:13:171
1187499181,2cyclictest7771-21cut20:55:191
1187499181,2cyclictest7771-21cut20:55:191
1187499181,2cyclictest21609-21nfsd419:25:181
1187499181,2cyclictest14365-21needreboot23:00:191
1187499181,2cyclictest14365-21needreboot23:00:191
1187499181,16cyclictest26199-21smtpd20:30:301
1187499180,17cyclictest3976-21H222:10:211
1186999182,2cyclictest1515-21lxd23:25:150
1186999182,2cyclictest1515-21lxd23:25:150
1186999182,1cyclictest3979-21H222:10:210
1186999182,1cyclictest0-21swapper/020:45:200
1186999182,15cyclictest12828-21if_eno121:05:160
11869991816,1cyclictest9-21ksoftirqd/023:40:150
11869991816,1cyclictest0-21swapper/021:00:140
11869991814,3cyclictest4099-21H222:10:210
11869991814,3cyclictest3985-21H222:10:210
11869991813,4cyclictest7226-21sort23:45:170
1186999181,2cyclictest3987-21H222:10:210
1186999180,2cyclictest3989-21H222:10:210
1186999180,2cyclictest3979-21H222:10:210
1186999180,17cyclictest3983-21H222:10:210
1186999180,17cyclictest3979-21H222:10:210
1186999180,17cyclictest17057-21df_inode22:10:140
1186999180,17cyclictest14504-21snapd21:25:280
1186999180,16cyclictest3605-21pzem00:35:210
1186999180,15cyclictest4099-21H222:10:210
1186999180,15cyclictest3989-21H222:10:210
11879991714,2cyclictest5847-21irqstats19:55:162
11879991714,2cyclictest3979-21H222:10:212
11879991714,2cyclictest3979-21H222:10:212
11879991714,2cyclictest3211-21JS22:10:212
11879991714,2cyclictest31429-21cat19:45:012
11879991714,2cyclictest27691-21cut22:30:002
11879991714,2cyclictest17108-21cat20:15:182
11879991714,2cyclictest0-21swapper/223:00:192
11879991714,2cyclictest0-21swapper/223:00:192
1187999171,1cyclictest3450-21gsd-color23:45:052
1187999171,15cyclictest3978-21H222:10:212
1187999171,15cyclictest0-21swapper/220:05:142
1187999171,15cyclictest0-21swapper/220:05:132
1187999170,2cyclictest4099-21H222:10:212
1187999170,2cyclictest3989-21H222:10:212
1187999170,2cyclictest32078-21fschecks_count19:45:152
1187999170,2cyclictest31385-21missed_timers20:40:152
1187999170,2cyclictest17874-21ntpq22:10:192
1187999170,1cyclictest0-21swapper/200:10:192
1187999170,17cyclictest0-21swapper/222:57:302
1187999170,16cyclictest8970-21nfsd420:00:182
1187999170,16cyclictest3991-21H222:10:212
1187999170,16cyclictest3989-21H222:10:212
1187999170,16cyclictest3985-21H222:10:212
1187999170,16cyclictest3177-21strings19:50:182
1187999170,16cyclictest2483-21grep00:35:172
1187999170,16cyclictest23625-21expr19:30:152
1187999170,16cyclictest23011-21sed21:25:012
1187999170,16cyclictest23011-21sed21:25:012
1187999170,16cyclictest22801-21nfsd423:15:192
1187999170,16cyclictest18787-21sed21:15:182
1187999170,16cyclictest13899-21df20:10:162
1187999170,16cyclictest12506-21expr19:10:142
11874991715,1cyclictest21-21ksoftirqd/120:45:051
11874991715,1cyclictest0-21swapper/122:05:451
11874991714,2cyclictest4099-21H222:10:211
11874991714,2cyclictest27366-21smartctl00:20:181
11874991714,2cyclictest22182-21tune2fs20:25:151
11874991714,2cyclictest13938-21timerandwakeup19:10:221
1187499170,2cyclictest5049-21cpuspeed_turbos19:55:131
1187499170,2cyclictest4099-21H222:10:211
1187499170,2cyclictest3987-21H222:10:211
1187499170,2cyclictest3985-21H222:10:211
1187499170,2cyclictest3985-21H222:10:211
1187499170,2cyclictest3983-21H222:10:211
1187499170,2cyclictest3979-21H222:10:211
1187499170,2cyclictest3979-21H222:10:211
1187499170,2cyclictest3897-21/usr/sbin/munin23:40:151
1187499170,2cyclictest32495-21plymouth22:35:231
1187499170,2cyclictest32495-21plymouth22:35:231
1187499170,2cyclictest31207-21processes23:30:201
1187499170,2cyclictest30127-21perf22:35:001
1187499170,2cyclictest28190-21php7.019:39:011
1187499170,2cyclictest2531-21fschecks_count19:50:161
1187499170,2cyclictest15880-21find00:00:201
1187499170,2cyclictest12837-21sshd20:09:271
1187499170,2cyclictest12837-21sshd20:09:271
1187499170,2cyclictest11284-21expr22:00:151
1187499170,1cyclictest0-21swapper/122:27:111
1187499170,16cyclictest9847-21taskset20:03:091
1187499170,16cyclictest4035-21H222:10:211
1187499170,16cyclictest4022-21cut20:50:141
1187499170,16cyclictest3989-21H222:10:211
1187499170,16cyclictest3981-21H222:10:211
1187499170,16cyclictest3981-21H222:10:211
1187499170,16cyclictest31452-21/usr/sbin/munin19:45:151
1187499170,16cyclictest26404-21expr21:30:131
1187499170,16cyclictest2521-21sessionclean23:39:011
1187499170,16cyclictest19534-21timerwakeupswit21:15:231
1187499170,16cyclictest17265-21nfsd420:15:191
1187499170,16cyclictest1347-21lxd23:21:031
11869991714,2cyclictest5534-21/usr/sbin/munin19:55:140
11869991714,2cyclictest3987-21H222:10:210
11869991714,2cyclictest31708-21cpuspeed_turbos19:45:130
11869991714,2cyclictest29451-21perl19:40:150
11869991714,2cyclictest29451-21perl19:40:150
11869991714,2cyclictest27238-21ntp_states19:35:200
11869991714,2cyclictest19014-21cut19:20:190
11869991714,2cyclictest17907-21proxymap23:05:420
11869991712,4cyclictest3981-21H222:10:210
1186999171,1cyclictest0-21swapper/020:51:540
1186999171,15cyclictest22927-21ntpq23:15:190
11869991710,2cyclictest19818-21cpuspeed_turbos22:15:140
1186999170,2cyclictest9927-21missed_timers23:50:180
1186999170,2cyclictest9425-21timerandwakeup20:00:220
1186999170,2cyclictest3991-21H222:10:210
1186999170,2cyclictest3981-21H222:10:210
1186999170,2cyclictest20203-21ntpq20:20:190
1186999170,2cyclictest16890-21/usr/sbin/munin20:15:150
1186999170,1cyclictest3991-21H222:10:210
1186999170,1cyclictest3991-21H222:10:210
1186999170,16cyclictest8866-21netstat21:55:170
1186999170,16cyclictest4035-21H222:10:210
1186999170,16cyclictest3991-21H222:10:210
1186999170,16cyclictest3991-21H222:10:210
1186999170,16cyclictest3980-21H222:10:210
1186999170,16cyclictest3683-21timerwakeupswit22:40:210
1186999170,16cyclictest32292-21grep22:35:200
1186999170,16cyclictest32292-21grep22:35:200
1186999170,16cyclictest28906-21/usr/sbin/munin20:35:210
1186999170,16cyclictest24210-21sed22:20:220
1186999170,16cyclictest22606-21sed20:25:180
1186999170,16cyclictest19537-21http_loadtime23:10:150
1186999170,16cyclictest13604-21expr20:10:150
1186999170,16cyclictest10737-21cat20:05:140
1186999170,16cyclictest10737-21cat20:05:140
1186999170,16cyclictest0-21swapper/020:33:090
11879991614,1cyclictest4787-21sed22:45:012
11879991614,1cyclictest0-21swapper/221:05:152
11879991614,1cyclictest0-21swapper/219:25:222
11879991614,1cyclictest0-21swapper/219:20:132
1187999160,1cyclictest0-21swapper/222:50:132
1187999160,15cyclictest0-21swapper/219:40:122
1187999160,15cyclictest0-21swapper/219:35:142
11874991615,1cyclictest21-21ksoftirqd/121:55:111
11874991614,1cyclictest9827-21expr21:00:141
11874991614,1cyclictest0-21swapper/123:55:151
11874991613,2cyclictest15830-21kernelversion19:15:171
1187499160,15cyclictest29335-21df_inode19:40:141
1187499160,15cyclictest29335-21df_inode19:40:131
1187499160,15cyclictest24849-21sed19:30:221
1187499160,15cyclictest0-21swapper/119:20:221
11869991614,1cyclictest0-21swapper/022:25:160
11869991614,1cyclictest0-21swapper/021:15:140
11869991614,1cyclictest0-21swapper/019:50:120
1186999160,15cyclictest0-21swapper/019:25:150
1186999160,14cyclictest0-21swapper/019:15:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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