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2025-11-02 - 14:27
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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 Sun Nov 02, 2025 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1917999240,23cyclictest0-21swapper/222:05:582
1917999230,20cyclictest0-21swapper/223:35:062
1917699230,5cyclictest0-21swapper/020:27:290
1917699210,20cyclictest823-21systemd-network20:09:000
1917799204,15cyclictest0-21swapper/121:25:461
19177992020,0cyclictest0-21swapper/120:14:451
1917699204,15cyclictest0-21swapper/021:24:330
19179991917,1cyclictest0-21swapper/223:32:332
19177991917,1cyclictest0-21swapper/100:20:131
19177991917,1cyclictest0-21swapper/100:10:161
1917699192,2cyclictest20986-21which23:00:180
1917699191,16cyclictest7450-21fschecks_count19:45:180
1917699191,12cyclictest32150-21needreboot21:25:180
1917699190,18cyclictest0-21swapper/022:07:580
1917999182,1cyclictest17590-21if_lxdbr021:00:182
1917999182,15cyclictest28-21ksoftirqd/223:41:462
19179991816,1cyclictest4530-21H212:26:332
19179991815,2cyclictest30008-21snapd23:54:152
19179991815,2cyclictest24543-21awk19:20:012
19179991814,2cyclictest24457-21cpuspeed_turbos22:10:132
1917799183,14cyclictest0-21swapper/123:15:201
1917799183,14cyclictest0-21swapper/123:15:191
1917799180,2cyclictest4530-21H212:26:331
1917699182,14cyclictest0-21swapper/023:32:510
19176991816,1cyclictest0-21swapper/023:05:190
19176991816,1cyclictest0-21swapper/021:41:380
19176991814,3cyclictest2049-21systemd-journal22:12:410
1917699180,3cyclictest8972-21python300:35:000
1917699180,17cyclictest0-21swapper/019:20:140
19179991714,2cyclictest4536-21H212:26:332
19179991714,2cyclictest3939-21expr22:30:152
19179991714,2cyclictest3441-21gsd-color22:45:152
19179991714,2cyclictest3286-21JS12:26:332
19179991714,2cyclictest30795-21cat22:20:152
19179991714,2cyclictest30083-21snapd21:56:552
19179991714,2cyclictest14220-21expr20:55:142
19179991714,2cyclictest1140-21tr20:30:222
19179991713,3cyclictest0-21swapper/223:45:462
19179991713,2cyclictest30563-21grep00:15:152
1917999170,2cyclictest28757-21apt-key23:15:012
1917999170,2cyclictest28757-21apt-key23:15:012
1917999170,2cyclictest27049-21apache_volume22:15:132
1917999170,2cyclictest27016-21sed00:09:012
1917999170,2cyclictest25599-21grep19:20:142
1917999170,2cyclictest20694-21nfsd419:10:202
1917999170,2cyclictest12702-21proc_pri20:50:212
1917999170,1cyclictest0-21swapper/223:05:182
1917999170,16cyclictest8940-21systemctl21:40:212
1917999170,16cyclictest8805-21postgres19:45:572
1917999170,16cyclictest5173-21awk00:25:202
1917999170,16cyclictest4530-21H212:26:332
1917999170,16cyclictest4523-21H212:26:332
1917999170,16cyclictest30817-21proc_pri20:25:222
1917999170,16cyclictest30682-21cpuspeed_turbos19:30:152
1917999170,16cyclictest2874-21cat20:35:162
1917999170,16cyclictest28316-21grep19:25:162
1917999170,16cyclictest27547-21cron21:17:002
1917999170,16cyclictest2750-21grep21:30:172
1917999170,16cyclictest2750-21grep21:30:172
1917999170,16cyclictest27413-21cat20:20:192
1917999170,16cyclictest24185-21awk21:10:212
1917999170,16cyclictest22360-21apt-config21:10:022
1917999170,16cyclictest21145-21apt-get20:10:182
1917999170,16cyclictest17691-21cat20:05:002
1917999170,16cyclictest14572-21grep21:50:192
1917999170,16cyclictest12867-21/usr/sbin/munin19:55:172
1917999170,16cyclictest0-21swapper/222:25:202
1917999170,16cyclictest0-21swapper/221:20:162
1917999170,16cyclictest0-21swapper/200:20:162
1917999170,16cyclictest0-21swapper/200:10:332
19177991715,1cyclictest2318-21proc_pri19:35:221
19177991715,1cyclictest0-21swapper/123:55:121
19177991714,2cyclictest8991-21sed22:40:011
19177991714,2cyclictest7193-21fschecks_count00:30:181
19177991714,2cyclictest4538-21H212:26:331
19177991714,2cyclictest4536-21H212:26:331
19177991714,2cyclictest4523-21H212:26:331
19177991714,2cyclictest414-20systemd-journal23:42:581
19177991714,2cyclictest414-20systemd-journal20:22:421
19177991714,2cyclictest414-20systemd-journal19:42:501
19177991714,2cyclictest27490-21tr23:10:211
19177991714,2cyclictest1845-21systemd-journal21:17:011
19177991714,2cyclictest14914-21expr22:50:161
19177991714,2cyclictest12607-21master21:47:331
19177991714,2cyclictest0-21swapper/120:40:211
19177991713,3cyclictest14535-21cat22:50:001
19177991712,1cyclictest0-21swapper/121:10:221
1917799171,15cyclictest0-21swapper/123:39:011
1917799170,2cyclictest4523-21H212:26:331
1917799170,2cyclictest26349-21timerandwakeup00:05:231
1917799170,2cyclictest19789-21expr19:10:141
1917799170,16cyclictest9427-21sed20:45:171
1917799170,16cyclictest4528-21H212:26:331
1917799170,16cyclictest414-20systemd-journal19:47:571
1917799170,16cyclictest31688-21nfsd400:15:211
1917799170,16cyclictest1845-21systemd-journal20:56:371
1917799170,16cyclictest1059-21cups-browsed22:25:211
1917799170,16cyclictest0-21swapper/121:10:011
1917799170,16cyclictest0-21swapper/119:55:191
19176991715,1cyclictest0-21swapper/000:20:270
19176991714,2cyclictest7632-21nfsd422:35:200
19176991714,2cyclictest646-21anvil21:30:490
19176991714,2cyclictest646-21anvil21:30:490
19176991714,2cyclictest3197-21php7.219:38:590
19176991714,2cyclictest29088-21cpuspeed_turbos23:15:130
19176991714,2cyclictest29088-21cpuspeed_turbos23:15:130
19176991714,2cyclictest28085-21cat00:10:150
19176991714,2cyclictest0-21swapper/023:20:120
19176991714,1cyclictest0-21swapper/019:50:190
19176991713,3cyclictest27790-21munin-run21:20:020
19176991713,3cyclictest0-21swapper/019:10:160
1917699171,15cyclictest0-21swapper/000:00:160
1917699170,3cyclictest0-21swapper/022:20:190
1917699170,2cyclictest490-21/usr/sbin/munin20:30:180
1917699170,2cyclictest29470-21python322:20:000
1917699170,2cyclictest24515-21cron19:20:000
1917699170,2cyclictest14851-21nfsd423:45:180
1917699170,2cyclictest13947-21/usr/sbin/munin20:55:220
1917699170,2cyclictest13636-21cut20:55:000
1917699170,2cyclictest1355-21lxd00:28:550
1917699170,16cyclictest959-21expr22:25:150
1917699170,16cyclictest9275-21grep23:35:180
1917699170,16cyclictest7012-21grep20:40:200
1917699170,16cyclictest4534-21H212:26:330
1917699170,16cyclictest30005-21snapd22:54:180
1917699170,16cyclictest25779-21nfsd400:05:200
1917699170,16cyclictest2418-21cpuspeed_turbos23:25:140
1917699170,16cyclictest0-21swapper/023:57:060
1917699170,15cyclictest4523-21H212:26:330
1917699170,15cyclictest0-21swapper/022:40:080
19179991614,1cyclictest9669-21apt-get21:45:042
19179991614,1cyclictest0-21swapper/223:55:142
19179991614,1cyclictest0-21swapper/223:20:142
19179991614,1cyclictest0-21swapper/220:15:072
19179991614,1cyclictest0-21swapper/219:50:172
19179991614,1cyclictest0-21swapper/219:35:142
19179991614,1cyclictest0-21swapper/200:35:182
19179991614,1cyclictest0-21swapper/200:30:182
19179991613,2cyclictest22003-21cpuspeed_turbos00:00:132
1917999161,1cyclictest0-21swapper/220:05:012
1917999160,2cyclictest4001-21/usr/sbin/munin19:40:212
1917999160,1cyclictest0-21swapper/222:35:132
1917999160,1cyclictest0-21swapper/220:40:122
1917999160,15cyclictest8642-21cut20:45:152
1917999160,15cyclictest4347-21acpi21:35:152
1917999160,15cyclictest30950-21chrt21:25:112
1917999160,15cyclictest0-21swapper/223:10:162
1917999160,15cyclictest0-21swapper/222:55:152
19177991614,1cyclictest0-21swapper/123:50:181
19177991614,1cyclictest0-21swapper/122:15:231
19177991614,1cyclictest0-21swapper/121:50:141
19177991614,1cyclictest0-21swapper/121:35:201
19177991614,1cyclictest0-21swapper/121:30:201
19177991614,1cyclictest0-21swapper/121:30:191
19177991614,1cyclictest0-21swapper/121:20:141
19177991614,1cyclictest0-21swapper/120:35:181
19177991614,1cyclictest0-21swapper/120:27:231
19177991614,1cyclictest0-21swapper/119:50:201
19177991614,1cyclictest0-21swapper/100:35:011
19177991614,1cyclictest0-21swapper/100:00:141
19177991613,2cyclictest4468-21which00:25:161
19177991613,2cyclictest11896-21fschecks_time20:50:161
1917799160,1cyclictest4532-21H212:26:331
1917799160,1cyclictest188542chrt21:02:501
1917799160,1cyclictest0-21swapper/123:20:191
1917799160,1cyclictest0-21swapper/123:00:151
1917799160,1cyclictest0-21swapper/119:30:211
1917799160,16cyclictest0-21swapper/119:24:301
1917799160,15cyclictest24103-21cstates20:15:161
1917799160,15cyclictest22520-21missed_timers22:05:191
1917799160,15cyclictest18888-21expr22:00:151
1917799160,15cyclictest17334-21apt-get20:05:101
1917799160,15cyclictest14588-21cat23:45:161
1917799160,15cyclictest0-21swapper/123:05:151
1917799160,15cyclictest0-21swapper/122:40:161
1917799160,15cyclictest0-21swapper/121:55:191
1917799160,15cyclictest0-21swapper/120:30:171
1917799160,15cyclictest0-21swapper/119:25:151
1917799160,15cyclictest0-21swapper/119:15:181
19176991614,1cyclictest0-21swapper/023:10:170
19176991614,1cyclictest0-21swapper/022:00:150
19176991614,1cyclictest0-21swapper/021:50:130
19176991614,1cyclictest0-21swapper/021:35:200
19176991614,1cyclictest0-21swapper/021:05:160
19176991614,1cyclictest0-21swapper/020:10:040
19176991614,1cyclictest0-21swapper/019:25:160
19176991613,2cyclictest4603-21expr19:40:180
19176991613,2cyclictest31803-21ntp_kernel_err19:30:190
1917699160,2cyclictest18237-21sed22:55:170
1917699160,2cyclictest10118-21sed20:45:220
1917699160,1cyclictest24011-21cpuspeed_turbos20:15:150
1917699160,1cyclictest11164-21cat23:40:140
1917699160,1cyclictest0-21swapper/000:35:010
1917699160,15cyclictest22667-21dpkg21:10:010
1917699160,15cyclictest0-21swapper/023:50:150
1917699160,15cyclictest0-21swapper/022:45:180
1917699160,15cyclictest0-21swapper/021:55:170
1917699160,15cyclictest0-21swapper/021:00:240
1917699160,15cyclictest0-21swapper/020:35:160
1917699160,15cyclictest0-21swapper/019:55:180
1917699160,15cyclictest0-21swapper/000:15:160
1917799150,1cyclictest0-21swapper/122:10:131
1917699150,1cyclictest0-21swapper/020:20:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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