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2026-06-26 - 12:58
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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 Fri Jun 26, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16634992726,1cyclictest0-21swapper/123:50:141
16634992523,1cyclictest1100-21snmpd23:08:261
16634992414,5cyclictest0-21swapper/121:14:231
1663499236,16cyclictest0-21swapper/100:12:191
16634992313,0cyclictest0-21swapper/122:25:441
1663499224,10cyclictest0-21swapper/100:32:201
16634992213,0cyclictest0-21swapper/122:20:581
1663399220,18cyclictest0-21swapper/021:42:340
16635992113,6cyclictest30030-21fschecks_count20:30:152
16634992112,0cyclictest0-21swapper/122:46:061
1663399210,20cyclictest843-21systemd-network23:44:270
1663599200,4cyclictest0-21swapper/219:30:012
16634992015,4cyclictest0-21swapper/100:15:111
1663499200,0cyclictest0-21swapper/121:51:501
1663399204,15cyclictest0-21swapper/021:28:250
1663399202,17cyclictest0-21swapper/022:30:140
1663599192,16cyclictest27214-21cpuspeed_turbos22:20:142
16635991917,1cyclictest0-21swapper/223:01:422
1663599190,17cyclictest8805-21fschecks_time23:40:142
1663499192,16cyclictest0-21swapper/121:55:131
16634991917,1cyclictest0-21swapper/122:44:181
16634991915,3cyclictest0-21swapper/121:31:451
16634991910,0cyclictest0-21swapper/120:39:381
1663499190,5cyclictest0-21swapper/121:28:011
1663499190,4cyclictest15609-21expr22:55:151
1663499190,1cyclictest0-21swapper/123:31:431
1663499190,18cyclictest0-21swapper/122:09:501
16633991917,1cyclictest0-21swapper/023:22:460
1663599183,1cyclictest28-21ksoftirqd/221:29:102
16635991818,0cyclictest0-21swapper/223:47:042
16635991816,1cyclictest204452chrt20:10:282
16635991816,1cyclictest0-21swapper/200:31:192
16635991815,2cyclictest902-21if_eno122:30:162
16635991815,2cyclictest3987-21H222:10:212
16635991814,3cyclictest14504-21snapd00:17:282
16635991814,1cyclictest0-21swapper/222:25:222
1663599181,2cyclictest2872-21systemd-logind22:00:512
1663599181,16cyclictest32207-21cpuspeed_turbos20:35:142
1663599181,16cyclictest2069-21systemd-udevd00:20:512
1663599180,2cyclictest4099-21H222:10:212
1663599180,17cyclictest1856-21systemd-udevd23:38:512
1663599180,17cyclictest1789-21iwlist21:35:152
1663599180,16cyclictest9064-21gpgv22:45:022
1663499189,0cyclictest0-21swapper/100:37:141
1663499182,15cyclictest29578-21cpuspeed_turbos20:30:141
1663499182,15cyclictest24778-21awk23:10:181
1663499182,15cyclictest20014-21taskset23:02:241
16634991815,1cyclictest0-21swapper/120:00:191
16634991814,2cyclictest3989-21H222:10:211
16634991814,2cyclictest0-21swapper/119:25:011
16634991812,5cyclictest843-21systemd-network21:22:101
1663499181,16cyclictest14495-21snapd19:52:581
1663499180,17cyclictest16815-21grep20:05:171
1663399182,1cyclictest0-21swapper/000:06:180
1663399182,15cyclictest9-21ksoftirqd/022:40:350
1663399182,15cyclictest14222-21cpuspeed_turbos21:00:130
16633991815,2cyclictest32671-21chrt00:20:560
16633991814,3cyclictest3416-21qmgr00:28:350
1663399181,16cyclictest28004-21lxd20:30:480
1663399180,3cyclictest5413-21sshd22:38:180
1663399180,17cyclictest1829-21systemd-journal20:15:000
1663599172,1cyclictest28-21ksoftirqd/220:46:102
16635991716,1cyclictest28-21ksoftirqd/221:40:462
16635991715,1cyclictest3450-21gsd-color21:00:162
16635991715,1cyclictest208881nfsd419:15:182
16635991715,1cyclictest208881nfsd419:15:182
16635991715,1cyclictest0-21swapper/220:50:122
16635991714,2cyclictest8814-21timerwakeupswit21:45:222
16635991714,2cyclictest3989-21H222:10:212
16635991714,2cyclictest3983-21H222:10:212
16635991714,2cyclictest3976-21H222:10:212
16635991714,2cyclictest32385-21grep23:25:152
16635991714,2cyclictest29818-21cupsd23:20:552
16635991714,2cyclictest24155-21expr20:20:122
16635991714,2cyclictest15595-21/usr/sbin/munin20:05:122
16635991714,2cyclictest13021-21awk22:50:162
16635991714,2cyclictest11523-21cat20:55:132
16635991714,2cyclictest0-21swapper/223:05:032
1663599171,15cyclictest24400-21taskset00:07:052
1663599171,15cyclictest0-21swapper/221:50:192
1663599170,2cyclictest9173-21php7.000:39:002
1663599170,2cyclictest7500-21expr22:40:162
1663599170,2cyclictest14545-21snapd19:55:082
1663599170,2cyclictest1351-21lxd21:58:482
1663599170,2cyclictest1079-21cups-browsed22:10:202
1663599170,16cyclictest4869-21sed20:40:212
1663599170,16cyclictest4386-21cpuspeed_turbos19:45:122
1663599170,16cyclictest4035-21H222:10:212
1663599170,16cyclictest3985-21H222:10:212
1663599170,16cyclictest26308-21nfsd421:20:182
1663599170,16cyclictest26226-21/usr/sbin/munin23:15:222
1663599170,16cyclictest23788-21ntpq19:20:172
1663599170,16cyclictest21295-21switchtime21:10:212
1663599170,16cyclictest1667-21cstates19:40:132
1663599170,16cyclictest14504-21snapd22:05:282
1663499178,0cyclictest0-21swapper/121:18:021
16634991714,2cyclictest30688-21apache_volume00:20:131
16634991714,2cyclictest29266-21ntp_states19:30:171
16634991714,2cyclictest26283-21perf20:25:001
16634991714,2cyclictest26226-21/usr/sbin/munin23:15:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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