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2026-03-23 - 04:47
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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 Mar 23, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2841299240,23cyclictest827-21cut20:15:010
2841299240,23cyclictest10854-21munin-run21:30:000
2841299230,22cyclictest8193-21cut23:15:150
2841299230,22cyclictest31164-21grep23:55:180
2841299230,22cyclictest19806-21cat20:45:220
2841299222,19cyclictest1876-21apt-config22:10:020
2841299222,19cyclictest0-21swapper/020:50:290
28412992216,5cyclictest223042sleep021:49:270
2841299220,8cyclictest8635-21sed20:25:230
2841299220,21cyclictest7913-21basename00:10:190
2841299220,21cyclictest28101-21expr20:05:150
2841299220,21cyclictest2357-21chrt00:02:380
2841299220,21cyclictest21339-21cat23:40:000
2841299220,21cyclictest18440-21sed23:35:000
2841299220,21cyclictest16615-21sed19:45:010
2841299220,21cyclictest1369-21sort19:15:230
2841299220,21cyclictest13018-21expr23:25:150
2841299220,21cyclictest11713-21expr21:30:150
2841299220,21cyclictest0-21swapper/023:05:140
2841299220,21cyclictest0-21swapper/022:25:010
2841299220,21cyclictest0-21swapper/022:15:130
2841299220,21cyclictest0-21swapper/022:05:140
2841299220,21cyclictest0-21swapper/020:40:000
2841299220,21cyclictest0-21swapper/019:31:150
2841299220,21cyclictest0-21swapper/019:25:020
2841299220,21cyclictest0-21swapper/000:20:130
2841299220,21cyclictest0-21swapper/000:15:130
2841299220,20cyclictest0-21swapper/022:00:140
2841299220,0cyclictest0-21swapper/021:10:100
2841399210,20cyclictest0-21swapper/123:28:551
28412992114,6cyclictest56112sleep019:25:030
28412992114,6cyclictest0-21swapper/023:40:130
28412992114,5cyclictest0-21swapper/021:52:280
2841299211,19cyclictest17143-21sh21:40:010
2841299211,19cyclictest0-21swapper/019:55:140
2841299210,20cyclictest4197-21tr21:15:200
2841299210,20cyclictest3976-21H222:10:210
2841299210,20cyclictest31463-21apt-config19:15:010
2841299210,20cyclictest27469-21cpu22:55:110
2841299210,20cyclictest270232chrt20:00:420
2841299210,20cyclictest22062-21cpuspeed_turbos22:45:140
2841299210,20cyclictest19144-21dpkg22:40:010
2841299210,20cyclictest17082-21expr19:45:130
2841299210,20cyclictest15602-21expr20:40:140
2841299210,20cyclictest0-21swapper/021:35:120
2841299210,20cyclictest0-21swapper/021:05:410
2841299210,20cyclictest0-21swapper/020:30:220
2841299210,20cyclictest0-21swapper/020:20:170
2841299210,20cyclictest0-21swapper/000:35:230
2841299210,20cyclictest0-21swapper/000:25:140
2841399204,15cyclictest0-21swapper/123:45:291
2841399200,6cyclictest0-21swapper/121:25:131
28412992013,6cyclictest5456-21nfsd423:10:170
28412992012,7cyclictest290312sleep023:50:290
2841299200,5cyclictest0-21swapper/020:55:130
2841299200,5cyclictest0-21swapper/019:50:140
2841299200,19cyclictest24726-21expr23:45:150
2841299200,19cyclictest14421-21nfsd422:30:160
2841299200,19cyclictest0-21swapper/022:50:120
2841299200,19cyclictest0-21swapper/021:20:210
2841299200,19cyclictest0-21swapper/019:35:140
2841299200,0cyclictest0-21swapper/023:00:180
2841299200,0cyclictest0-21swapper/021:55:130
2841299200,0cyclictest0-21swapper/000:30:160
2841299200,0cyclictest0-21swapper/000:05:110
28413991917,1cyclictest0-21swapper/123:56:261
28412991912,6cyclictest11702-21nfsd422:25:190
2841299190,18cyclictest1300-21lxd21:02:500
2841299190,18cyclictest1300-21lxd21:02:500
2841299190,18cyclictest0-21swapper/022:35:140
2841299190,0cyclictest0-21swapper/020:15:220
2841799182,1cyclictest17662sleep221:14:052
2841799182,15cyclictest9766-21ls23:20:012
2841799182,15cyclictest0-21swapper/221:20:002
2841799182,15cyclictest0-21swapper/219:15:222
28417991816,1cyclictest9736-21sshd22:20:422
28417991815,2cyclictest25946-21cat20:00:172
28417991814,3cyclictest4099-21H222:10:212
28417991813,4cyclictest0-21swapper/221:41:582
2841799180,1cyclictest0-21swapper/200:12:052
2841799180,15cyclictest0-21swapper/223:55:552
2841399182,15cyclictest25021-21expr22:50:141
28413991815,2cyclictest4343-21grep23:10:111
2841399180,3cyclictest3991-21H222:10:211
2841399180,2cyclictest3989-21H222:10:211
2841399180,2cyclictest3987-21H222:10:211
2841399180,17cyclictest1829-21systemd-journal22:17:011
2841399180,17cyclictest0-21swapper/100:20:121
2841399180,16cyclictest16749-21snapd23:40:181
28417991715,1cyclictest27873-21cat23:50:152
28417991715,1cyclictest0-21swapper/220:30:232
28417991715,1cyclictest0-21swapper/220:25:222
28417991715,1cyclictest0-21swapper/200:00:202
28417991714,2cyclictest9239-21grep00:15:122
28417991714,2cyclictest5404-21grep23:10:162
28417991714,2cyclictest3979-21H222:10:212
28417991714,2cyclictest29930-21nfsd419:10:202
28417991714,2cyclictest21632-21if_lxdbr020:50:182
28417991714,2cyclictest19338-21fschecks_count23:35:142
28417991714,2cyclictest10682-21expr23:20:132
28417991714,2cyclictest10460-21python321:30:002
28417991714,2cyclictest0-21swapper/222:35:192
28417991714,2cyclictest0-21swapper/222:10:022
2841799171,15cyclictest5109-21cpuspeed_turbos22:15:142
2841799171,15cyclictest4099-21H222:10:212
2841799170,3cyclictest26471-21tr21:00:142
2841799170,3cyclictest26471-21tr21:00:132
2841799170,3cyclictest0-21swapper/220:40:142
2841799170,2cyclictest5711-21/usr/sbin/munin20:20:212
2841799170,2cyclictest3991-21H222:10:212
2841799170,2cyclictest3987-21H222:10:212
2841799170,2cyclictest22016-21latency_hist19:55:002
2841799170,2cyclictest13088-21cpuspeed_turbos23:25:142
2841799170,2cyclictest1035-21thermald21:20:222
2841799170,16cyclictest9439-21awk21:25:182
2841799170,16cyclictest399-20systemd-journal22:28:142
2841799170,16cyclictest22831-21if_err_eno122:45:162
2841799170,16cyclictest20588-21cpuspeed_turbos00:35:152
2841799170,16cyclictest19292-21cat00:30:212
2841799170,16cyclictest18049-21taskset23:31:552
2841799170,16cyclictest14358-21cstates21:35:122
2841799170,16cyclictest0-21swapper/221:49:102
28413991715,1cyclictest3991-21H222:10:211
28413991714,2cyclictest15945-21lxd21:46:501
28413991714,2cyclictest15265-21awk21:35:151
28413991714,2cyclictest11692-21expr21:30:151
28413991714,2cyclictest10241-21nfsd400:15:171
28413991714,2cyclictest0-21swapper/122:10:011
2841399170,2cyclictest31832-21find21:10:111
2841399170,2cyclictest16460-21cron21:44:561
2841399170,2cyclictest1525-21lxd00:14:341
2841399170,16cyclictest9277-21munin-run23:20:011
2841399170,16cyclictest633-21cstates00:00:141
2841399170,16cyclictest5332-21/usr/sbin/munin21:20:151
2841399170,16cyclictest420-21chrt20:13:421
2841399170,16cyclictest3976-21H222:10:211
2841399170,16cyclictest3381-21latency21:15:161
2841399170,16cyclictest28752-21nfsd422:55:151
2841399170,16cyclictest27439-21nfsd421:00:201
2841399170,16cyclictest27439-21nfsd421:00:191
2841399170,16cyclictest26382-21nfsd420:00:191
2841399170,16cyclictest20557-21sed19:50:181
2841399170,16cyclictest17962-21sed19:45:181
2841399170,16cyclictest16743-21snapd22:47:481
2841399170,16cyclictest15918-21/usr/sbin/munin22:35:151
2841399170,16cyclictest14689-21expr19:40:131
28417991614,1cyclictest297902chrt20:06:062
28417991614,1cyclictest12691-21ls20:35:142
28417991614,1cyclictest0-21swapper/223:45:122
28417991614,1cyclictest0-21swapper/223:40:132
28417991614,1cyclictest0-21swapper/219:45:152
28417991614,1cyclictest0-21swapper/219:30:142
28417991613,2cyclictest31370-21/usr/sbin/munin20:10:142
28417991613,2cyclictest13192-21/usr/sbin/munin22:30:172
2841799161,15cyclictest0-21swapper/200:05:162
2841799160,2cyclictest22378-21grep19:55:142
2841799160,1cyclictest0-21swapper/219:40:172
2841799160,1cyclictest0-21swapper/219:25:032
2841799160,1cyclictest0-21swapper/219:20:142
2841799160,15cyclictest31564-21df22:05:132
2841799160,15cyclictest28307-21cpuspeed_turbos22:00:142
2841799160,15cyclictest23482-21apache_volume20:55:122
2841799160,15cyclictest0-21swapper/223:00:192
2841799160,15cyclictest0-21swapper/222:55:142
2841799160,15cyclictest0-21swapper/222:40:002
2841799160,15cyclictest0-21swapper/221:50:192
2841799160,15cyclictest0-21swapper/221:05:172
2841799160,15cyclictest0-21swapper/220:15:152
2841799160,15cyclictest0-21swapper/200:25:192
28413991614,1cyclictest0-21swapper/122:30:151
28413991614,1cyclictest0-21swapper/122:25:131
28413991614,1cyclictest0-21swapper/122:00:151
28413991614,1cyclictest0-21swapper/121:05:151
28413991614,1cyclictest0-21swapper/120:55:141
28413991614,1cyclictest0-21swapper/120:15:171
28413991614,1cyclictest0-21swapper/119:35:141
28413991614,1cyclictest0-21swapper/119:20:171
28413991614,1cyclictest0-21swapper/119:10:161
28413991613,2cyclictest15554-21fschecks_count00:25:161
2841399160,1cyclictest0-21swapper/120:50:141
2841399160,1cyclictest0-21swapper/120:05:201
2841399160,15cyclictest993-21dbus-daemon00:05:181
2841399160,15cyclictest7181-21cpuspeed_turbos20:25:151
2841399160,15cyclictest6076-21expr19:25:131
2841399160,15cyclictest4233-21cpuspeed_turbos20:20:141
2841399160,15cyclictest3987-21H222:10:211
2841399160,15cyclictest3595-21grep22:10:181
2841399160,15cyclictest20807-21expr00:35:151
2841399160,15cyclictest20655-21vmstat23:35:211
2841399160,15cyclictest1348-21lxd20:46:501
2841399160,15cyclictest0-21swapper/123:30:001
2841399160,15cyclictest0-21swapper/123:20:131
2841399160,15cyclictest0-21swapper/123:05:161
2841399160,15cyclictest0-21swapper/120:40:141
2841399160,15cyclictest0-21swapper/119:30:171
2841399160,15cyclictest0-21swapper/119:16:371
28417991514,1cyclictest0-21swapper/200:20:072
28413991514,1cyclictest0-21swapper/122:20:031
2841399150,1cyclictest18426-21apt-get22:40:011
2841399150,1cyclictest0-21swapper/100:30:191
2841399150,14cyclictest0-21swapper/123:00:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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