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2026-05-16 - 12:59
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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 792 highest latencies:
System rackdslot0.osadl.org (updated Sat May 16, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1221099230,0cyclictest0-21swapper/100:30:141
1220999223,18cyclictest9-21ksoftirqd/023:55:410
12209992113,4cyclictest0-21swapper/022:50:050
1220999204,15cyclictest0-21swapper/000:18:000
1220999201,18cyclictest0-21swapper/023:24:330
1221199190,1cyclictest0-21swapper/221:45:122
1221199190,1cyclictest0-21swapper/200:10:332
1221099192,3cyclictest14496-21snapd00:22:571
1221099192,16cyclictest17403-21sessionclean23:09:011
1221099192,16cyclictest17403-21sessionclean23:09:011
1221099190,3cyclictest0-21swapper/122:52:231
1221099190,1cyclictest0-21swapper/121:45:181
1221099190,18cyclictest0-21swapper/120:11:411
1221099190,18cyclictest0-21swapper/100:36:431
1220999194,14cyclictest0-21swapper/000:35:210
12209991915,1cyclictest0-21swapper/022:58:380
1220999190,18cyclictest0-21swapper/000:27:120
1220999190,18cyclictest0-21swapper/000:27:120
1221199182,15cyclictest28-21ksoftirqd/200:21:062
12211991815,2cyclictest9722-21grep21:55:182
12211991815,2cyclictest4860-21idleruntime22:45:162
12211991814,3cyclictest0-21swapper/223:40:372
12211991814,3cyclictest0-21swapper/221:51:132
1221199181,16cyclictest6975-21grep19:55:192
1221199181,15cyclictest3991-21H222:10:212
1221199180,3cyclictest0-21swapper/223:52:312
1221199180,2cyclictest4035-21H222:10:212
1221199180,16cyclictest0-21swapper/220:05:492
12210991814,3cyclictest0-21swapper/122:20:161
1221099180,2cyclictest2007-21systemd-journal21:05:541
1221099180,17cyclictest843-21systemd-network20:38:001
1221099180,17cyclictest0-21swapper/123:46:101
12209991815,2cyclictest17441-21fschecks_count22:10:140
12209991815,2cyclictest1100-21snmpd19:13:420
12209991814,3cyclictest0-21swapper/020:40:190
1220999180,2cyclictest3976-21H222:10:210
1220999180,16cyclictest0-21swapper/020:00:130
1221199172,1cyclictest0-21swapper/200:15:212
12211991715,1cyclictest88002chrt22:50:372
12211991715,1cyclictest40822chrt00:35:522
12211991715,1cyclictest18174-21gpgv19:20:032
12211991715,1cyclictest0-21swapper/223:15:212
12211991715,1cyclictest0-21swapper/221:40:192
12211991714,2cyclictest993-21dbus-daemon19:15:212
12211991714,2cyclictest3987-21H222:10:212
12211991714,2cyclictest3983-21H222:10:212
12211991714,2cyclictest3414-21master22:24:572
12211991714,2cyclictest31665-21expr00:30:112
12211991714,2cyclictest31102-21nvmesmart_nvme023:30:192
12211991714,2cyclictest29195-21latency_hist21:35:012
12211991714,2cyclictest2584-21cron23:40:012
12211991714,2cyclictest22284-21apache_processe20:25:112
12211991714,2cyclictest18100-21sed23:10:012
12211991714,2cyclictest17195-21cpuspeed_turbos00:05:132
12211991714,2cyclictest16963-21cpuspeed_turbos22:10:132
12211991714,2cyclictest15710-21expr21:10:142
12211991712,2cyclictest3979-21H222:10:212
1221199170,2cyclictest29082-21awk20:35:172
1221199170,2cyclictest27803-21nfsd419:35:162
1221199170,2cyclictest1-21systemd23:26:132
1221199170,2cyclictest10619-21memory22:55:162
1221199170,1cyclictest0-21swapper/220:40:162
1221199170,1cyclictest0-21swapper/219:28:072
1221199170,16cyclictest9910-21ps20:00:192
1221199170,16cyclictest8176-21awk20:55:162
1221199170,16cyclictest7985-21sed23:45:202
1221199170,16cyclictest4099-21H222:10:212
1221199170,16cyclictest3987-21H222:10:212
1221199170,16cyclictest30679-21ntpq21:35:182
1221199170,16cyclictest28710-21cat00:25:142
1221199170,16cyclictest28710-21cat00:25:142
1221199170,16cyclictest19241-21nfsd421:15:182
1221199170,16cyclictest14286-21cpuspeed_turbos20:10:132
1221199170,16cyclictest12780-21readlink22:00:182
1221199170,15cyclictest0-21swapper/219:10:282
12210991715,1cyclictest0-21swapper/120:05:131
12210991715,1cyclictest0-21swapper/100:06:391
12210991714,2cyclictest8540-21cpuspeed_turbos21:55:141
12210991714,2cyclictest5630-21cat23:44:561
12210991714,2cyclictest455-21plymouthd22:05:011
12210991714,2cyclictest3991-21H222:10:211
12210991714,2cyclictest3987-21H222:10:211
12210991714,2cyclictest30624-21python300:30:011
12210991714,2cyclictest30624-21python300:30:001
12210991714,2cyclictest28157-21expr22:30:131
12210991714,2cyclictest26583-21egrep23:25:131
12210991714,2cyclictest22864-21df20:25:141
12210991714,2cyclictest2254-21perf19:50:011
12210991714,2cyclictest14505-21snapd00:15:271
12210991714,2cyclictest14501-21snapd20:00:291
12210991714,2cyclictest12257-21sed23:55:161
12210991713,3cyclictest0-21swapper/121:28:451
1221099170,2cyclictest30713-21awk19:40:171
1221099170,2cyclictest22636-21sendmail_mailst23:15:191
1221099170,2cyclictest2117-21/usr/sbin/munin22:40:181
1221099170,2cyclictest18578-21fschecks_count21:15:151
1221099170,2cyclictest13196-21/usr/sbin/munin19:10:151
1221099170,1cyclictest3976-21H222:10:211
1221099170,1cyclictest0-21swapper/119:52:141
1221099170,1cyclictest0-21swapper/119:30:171
1221099170,16cyclictest6399-21cron20:55:001
1221099170,16cyclictest3987-21H222:10:211
1221099170,16cyclictest3985-21H222:10:211
1221099170,16cyclictest31845-21nfsd420:40:171
1221099170,16cyclictest20650-21fschecks_count00:10:131
1221099170,16cyclictest19838-21nvmesmart_nvme019:20:201
1221099170,16cyclictest15681-21ntp_offset00:00:201
1221099170,16cyclictest14550-21snapd21:20:281
1221099170,16cyclictest10897-21nfsd422:55:181
12209991717,0cyclictest0-21swapper/021:00:200
12209991715,1cyclictest0-21swapper/000:20:560
12209991715,1cyclictest0-21swapper/000:10:310
12209991714,2cyclictest6761-21sed19:55:180
12209991714,2cyclictest399-20systemd-journal19:15:010
12209991714,2cyclictest3985-21H222:10:210
12209991714,2cyclictest2527-21runrttasks23:39:180
12209991714,2cyclictest24585-21cron22:25:000
12209991714,2cyclictest20337-21sed19:20:220
12209991714,2cyclictest15647-21df23:05:120
12209991714,2cyclictest15647-21df23:05:120
12209991714,1cyclictest0-21swapper/021:36:450
12209991713,2cyclictest3987-21H222:10:210
12209991713,2cyclictest3983-21H222:10:210
1220999171,15cyclictest0-21swapper/020:30:220
1220999170,2cyclictest4099-21H222:10:210
1220999170,2cyclictest3991-21H222:10:210
1220999170,2cyclictest3985-21H222:10:210
1220999170,2cyclictest32639-21expr21:40:130
1220999170,2cyclictest1515-21lxd23:32:350
1220999170,1cyclictest0-21swapper/023:48:060
1220999170,1cyclictest0-21swapper/022:30:150
1220999170,1cyclictest0-21swapper/021:06:210
1220999170,16cyclictest7919-21missed_timers20:55:160
1220999170,16cyclictest3111-21find23:40:100
1220999170,16cyclictest30909-21https00:30:010
1220999170,16cyclictest2872-21systemd-logind22:46:510
1220999170,16cyclictest28169-21cat20:35:130
1220999170,16cyclictest17483-21fschecks_time20:15:150
1220999170,16cyclictest1525-21lxd21:50:540
1220999170,16cyclictest0-21swapper/020:46:480
1220999170,15cyclictest3985-21H222:10:210
12211991614,1cyclictest4330-21expr20:50:142
12211991614,1cyclictest14312-21expr22:05:132
12211991614,1cyclictest0-21swapper/223:00:132
12211991614,1cyclictest0-21swapper/222:41:402
12211991614,1cyclictest0-21swapper/222:30:142
12211991614,1cyclictest0-21swapper/221:25:172
12211991613,2cyclictest16011-21cat23:05:152
12211991613,2cyclictest16011-21cat23:05:152
1221199160,1cyclictest30536-21grep22:35:132
1221199160,1cyclictest0-21swapper/220:20:112
1221199160,15cyclictest3987-21H222:10:212
1221199160,15cyclictest24781-21latency23:20:162
1221199160,15cyclictest14676-21expr00:00:132
1221199160,15cyclictest10315-21http_loadtime21:00:152
1221199160,15cyclictest0-21swapper/223:55:142
1221199160,15cyclictest0-21swapper/219:50:162
1221199160,15cyclictest0-21swapper/219:40:172
12210991614,1cyclictest27201-21fschecks_count21:30:131
12210991614,1cyclictest0-21swapper/123:20:141
12210991614,1cyclictest0-21swapper/121:50:131
12210991614,1cyclictest0-21swapper/121:35:131
12210991614,1cyclictest0-21swapper/121:10:141
1221099160,1cyclictest0-21swapper/120:15:171
1221099160,15cyclictest9538-21idleruntime23:50:141
1221099160,15cyclictest6204-21expr19:55:141
1221099160,15cyclictest20244-21perl22:15:161
1221099160,15cyclictest15728-21cat19:15:141
1221099160,15cyclictest1244-21ntpq21:40:181
1221099160,15cyclictest1079-21cups-browsed22:25:211
1221099160,15cyclictest0-21swapper/123:35:121
1221099160,15cyclictest0-21swapper/123:30:201
1221099160,15cyclictest0-21swapper/123:10:011
1221099160,15cyclictest0-21swapper/123:00:141
1221099160,15cyclictest0-21swapper/122:35:141
1221099160,15cyclictest0-21swapper/121:00:141
1221099160,15cyclictest0-21swapper/120:55:101
1221099160,15cyclictest0-21swapper/120:45:121
1221099160,15cyclictest0-21swapper/119:25:181
12209991614,1cyclictest27695-21needreboot21:30:160
12209991614,1cyclictest2491-21open_files22:40:200
12209991614,1cyclictest22290-21apt-get20:25:120
12209991614,1cyclictest21833-21idleruntime23:15:140
12209991614,1cyclictest0-21swapper/023:51:150
12209991614,1cyclictest0-21swapper/023:26:260
12209991614,1cyclictest0-21swapper/021:15:190
12209991614,1cyclictest0-21swapper/019:45:180
12209991613,2cyclictest8384-21apache_volume21:55:120
12209991613,2cyclictest25728-21hddtemp_smartct22:25:150
12209991613,2cyclictest0-21swapper/021:45:170
1220999160,2cyclictest455-21plymouthd19:50:150
1220999160,2cyclictest20892-21grep22:15:190
1220999160,2cyclictest18228-21nfsd400:05:170
1220999160,1cyclictest216922chrt20:22:490
1220999160,1cyclictest0-21swapper/023:10:120
1220999160,1cyclictest0-21swapper/019:25:170
1220999160,15cyclictest0-21swapper/023:00:140
1220999160,15cyclictest0-21swapper/021:25:130
1220999160,15cyclictest0-21swapper/021:10:210
1220999160,15cyclictest0-21swapper/019:30:200
1220999160,15cyclictest0-21swapper/000:00:210
1220999150,14cyclictest0-21swapper/020:12:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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