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2026-06-29 - 09:54
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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 100 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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