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2025-12-04 - 05:51
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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 Thu Dec 04, 2025 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1315399260,8cyclictest0-21swapper/221:04:002
1315399252,5cyclictest0-21swapper/222:33:462
1315399250,6cyclictest28644-21wc23:25:132
1314999250,24cyclictest0-21swapper/120:25:121
1314499250,5cyclictest0-21swapper/020:03:200
1314499240,5cyclictest0-21swapper/023:42:010
1314499240,23cyclictest0-21swapper/021:12:470
1314499232,1cyclictest0-21swapper/021:25:200
13144992314,8cyclictest451-21smartctl00:25:200
1314499230,22cyclictest12474-21apache_accesses20:05:150
1314499230,18cyclictest0-21swapper/020:45:490
13153992216,5cyclictest0-21swapper/223:09:582
13153992213,8cyclictest24359-21sed00:10:202
1315399221,20cyclictest2792-21iscsid22:15:242
1315399220,7cyclictest7345-21ps20:50:212
1315399220,21cyclictest8593-21cpu20:55:142
1315399220,21cyclictest31279-21cat00:25:002
1315399220,21cyclictest19421-21awk20:15:182
1315399220,21cyclictest17303-21awk22:05:212
1315399220,21cyclictest0-21swapper/219:55:012
1315399220,18cyclictest0-21swapper/222:45:122
13144992217,4cyclictest0-21swapper/022:11:320
1314499221,13cyclictest0-21swapper/023:20:170
1314499220,2cyclictest9324-21perf20:00:010
1314499220,2cyclictest7754-21ntp_states22:45:170
1314499220,2cyclictest28567-21fschecks_time19:35:160
1314499220,2cyclictest25591-21sshd20:26:200
1314499220,21cyclictest24092-21sed21:20:240
1314499220,21cyclictest0-21swapper/021:05:540
1314499220,16cyclictest25096-21/usr/sbin/munin19:30:140
1314499220,16cyclictest15664-21latency_hist22:05:000
1314499220,15cyclictest0-21swapper/020:15:180
1315399212,18cyclictest0-21swapper/200:38:332
1315399212,18cyclictest0-21swapper/200:38:332
13153992115,5cyclictest28784-21cpuspeed_turbos21:30:142
13153992114,6cyclictest0-21swapper/222:58:442
13153992113,7cyclictest19799-21expr19:20:142
1315399210,6cyclictest9457-21sed20:00:022
1315399210,6cyclictest414-20systemd-journal20:45:022
1315399210,6cyclictest18030-21sed20:15:022
1315399210,20cyclictest7332-21bounce21:49:192
1315399210,20cyclictest7045-21ntp_kernel_err23:40:202
1315399210,20cyclictest29125-21wc20:35:152
1315399210,20cyclictest2507-21gpgconf20:45:012
1315399210,20cyclictest23355-21expr23:15:142
1315399210,20cyclictest21999-21apt21:20:012
1315399210,20cyclictest21813-21latency20:20:202
1315399210,20cyclictest20652-21cat00:05:162
1315399210,20cyclictest16808-21latency_hist00:00:022
1315399210,20cyclictest15270-21awk21:05:182
1315399210,20cyclictest13181-21grep20:05:172
1315399210,20cyclictest12951-21nvmesmart_nvme023:50:202
1315399210,20cyclictest10841-21wc20:00:182
1315399210,20cyclictest0-21swapper/223:35:032
1315399210,20cyclictest0-21swapper/223:10:202
1315399210,20cyclictest0-21swapper/222:50:172
1315399210,20cyclictest0-21swapper/222:40:172
1315399210,20cyclictest0-21swapper/222:25:152
1315399210,20cyclictest0-21swapper/222:10:012
1315399210,20cyclictest0-21swapper/222:00:212
1315399210,20cyclictest0-21swapper/221:50:162
1315399210,20cyclictest0-21swapper/221:15:022
1315399210,20cyclictest0-21swapper/220:30:162
1315399210,20cyclictest0-21swapper/219:40:142
1315399210,20cyclictest0-21swapper/219:35:112
1315399210,20cyclictest0-21swapper/200:15:162
1314999210,3cyclictest0-21swapper/100:00:141
13144992116,4cyclictest291902sleep022:25:310
13144992114,6cyclictest0-21swapper/019:25:280
13144992114,6cyclictest0-21swapper/000:15:240
1314499210,2cyclictest4534-21H212:26:330
1314499210,2cyclictest4526-21H212:26:330
1314499210,2cyclictest4526-21H212:26:330
1314499210,20cyclictest32460-21grep23:30:160
1314499210,20cyclictest0-21swapper/022:55:220
1314499210,1cyclictest0-21swapper/020:40:180
1314499210,1cyclictest0-21swapper/000:35:000
1314499210,1cyclictest0-21swapper/000:05:390
1314499210,19cyclictest4532-21H212:26:330
1314499210,15cyclictest29482-21idleruntime00:20:160
1314499210,15cyclictest18746-21sed22:10:010
1314499210,15cyclictest17021-21apt-get00:00:140
1314499210,15cyclictest15592-21nfsd423:55:180
1314499210,15cyclictest0-21swapper/019:10:140
1314499210,14cyclictest0-21swapper/022:52:580
1314499210,0cyclictest0-21swapper/020:58:390
1314499210,0cyclictest0-21swapper/020:21:360
13153992014,5cyclictest4593-21H212:26:332
13153992014,5cyclictest0-21swapper/223:34:342
13153992013,6cyclictest17722-21mailstats19:15:232
13153992013,6cyclictest0-21swapper/221:25:152
13153992012,7cyclictest2125-21cpuspeed_turbos21:40:132
1315399200,6cyclictest8551-21tr23:45:122
1315399200,19cyclictest4534-21H212:26:332
1315399200,19cyclictest23964-21expr20:25:122
1315399200,19cyclictest14188-21basename19:10:162
1315399200,19cyclictest0-21swapper/223:20:002
1315399200,19cyclictest0-21swapper/222:35:142
1315399200,19cyclictest0-21swapper/222:21:232
1315399200,19cyclictest0-21swapper/221:35:162
1315399200,19cyclictest0-21swapper/219:45:172
1315399200,19cyclictest0-21swapper/200:25:172
1315399200,18cyclictest4536-21H212:26:332
13149992017,2cyclictest21-21ksoftirqd/119:15:001
13144992014,5cyclictest4593-21H212:26:330
13144992014,5cyclictest0-21swapper/022:40:130
13144992014,5cyclictest0-21swapper/020:50:190
1314499200,1cyclictest0-21swapper/023:50:150
1314499200,1cyclictest0-21swapper/022:35:170
1314499200,1cyclictest0-21swapper/022:20:210
1314499200,1cyclictest0-21swapper/021:45:170
1314499200,1cyclictest0-21swapper/021:35:190
1314499200,19cyclictest24432-21/usr/sbin/munin23:15:210
1314499200,19cyclictest0-21swapper/023:49:140
1314499200,19cyclictest0-21swapper/023:35:040
1314499200,19cyclictest0-21swapper/021:57:360
1314499200,18cyclictest0-21swapper/019:45:140
1314499200,15cyclictest4532-21H212:26:330
1314499200,15cyclictest22197-21cat21:20:010
1314499200,15cyclictest12693-21ntpq21:00:200
1314499200,14cyclictest27956-21python321:30:020
1314499200,14cyclictest0-21swapper/023:00:220
1314499200,14cyclictest0-21swapper/020:12:230
1314499200,0cyclictest0-21swapper/019:44:140
13153991913,5cyclictest4532-21H212:26:332
1315399190,19cyclictest0-21swapper/219:25:112
1315399190,18cyclictest0-21swapper/221:55:202
1315399190,18cyclictest0-21swapper/221:20:152
1314999192,16cyclictest4581-21H212:26:331
1314999190,16cyclictest4526-21H212:26:331
13144991916,2cyclictest4532-21H212:26:330
13144991914,4cyclictest0-21swapper/020:31:420
13144991914,4cyclictest0-21swapper/000:35:210
13144991914,4cyclictest0-21swapper/000:35:200
13144991913,5cyclictest0-21swapper/022:20:010
1314499190,1cyclictest0-21swapper/023:05:170
1314499190,15cyclictest29526-21missed_timers23:25:170
1314499190,15cyclictest0-21swapper/000:10:160
1314499190,14cyclictest0-21swapper/021:50:170
1314999185,11cyclictest0-21swapper/121:55:151
1314999182,15cyclictest0-21swapper/100:19:501
13149991816,1cyclictest1980-21cpuspeed_turbos00:30:131
13149991816,1cyclictest0-21swapper/120:49:571
13149991815,2cyclictest4581-21H212:26:331
13149991815,2cyclictest32049-21kernelversion23:30:151
13149991814,3cyclictest4534-21H212:26:331
13149991814,3cyclictest4526-21H212:26:331
13149991814,3cyclictest20843-21fschecks_time00:05:171
13149991814,2cyclictest4526-21H212:26:331
1314999180,2cyclictest4593-21H212:26:331
1314999180,2cyclictest4593-21H212:26:331
1314999180,2cyclictest4528-21H212:26:331
1314999180,16cyclictest4538-21H212:26:331
1314999180,15cyclictest4536-21H212:26:331
13149991715,1cyclictest0-21swapper/119:35:191
13149991714,2cyclictest823-21systemd-network22:40:261
13149991714,2cyclictest5048-21cut21:45:011
13149991714,2cyclictest4581-21H212:26:331
13149991714,2cyclictest4536-21H212:26:331
13149991714,2cyclictest4534-21H212:26:331
13149991714,2cyclictest4528-21H212:26:331
13149991714,2cyclictest4526-21H212:26:331
13149991714,2cyclictest27641-21ls22:25:151
13149991714,2cyclictest2763-21/usr/sbin/munin19:45:201
13149991714,2cyclictest20379-21nvmesmart_nvme022:10:221
13149991714,1cyclictest0-21swapper/121:10:161
1314999170,3cyclictest0-21swapper/100:13:251
1314999170,2cyclictest9856-21nfsd420:55:201
1314999170,2cyclictest4538-21H212:26:331
1314999170,2cyclictest4538-21H212:26:331
1314999170,2cyclictest4538-21H212:26:331
1314999170,2cyclictest4532-21H212:26:331
1314999170,2cyclictest4532-21H212:26:331
1314999170,2cyclictest4528-21H212:26:331
1314999170,2cyclictest4526-21H212:26:331
1314999170,2cyclictest4526-21H212:26:331
1314999170,2cyclictest11805-21expr21:00:141
1314999170,1cyclictest0-21swapper/123:12:391
1314999170,16cyclictest970-21dbus-daemon23:40:231
1314999170,16cyclictest5575-21nfsd419:50:181
1314999170,16cyclictest4581-21H212:26:331
1314999170,16cyclictest4534-21H212:26:331
1314999170,16cyclictest4534-21H212:26:331
1314999170,16cyclictest4530-21H212:26:331
1314999170,16cyclictest4530-21H212:26:331
1314999170,16cyclictest4526-21H212:26:331
1314999170,16cyclictest4526-21H212:26:331
1314999170,16cyclictest4523-21H212:26:331
1314999170,16cyclictest19489-21acpi19:20:131
1314999170,15cyclictest4530-21H212:26:331
13149991614,1cyclictest0-21swapper/123:15:211
13149991614,1cyclictest0-21swapper/121:50:151
13149991614,1cyclictest0-21swapper/121:30:151
13149991614,1cyclictest0-21swapper/120:40:201
13149991614,1cyclictest0-21swapper/120:30:161
1314999160,15cyclictest4528-21H212:26:331
1314999160,15cyclictest22433-21fschecks_time22:15:181
1314999160,15cyclictest20738-21cupsd23:35:331
1314999160,15cyclictest0-21swapper/122:30:141
1314999160,15cyclictest0-21swapper/122:05:161
1314999160,15cyclictest0-21swapper/121:45:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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