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2025-11-05 - 10:16
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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 Wed Nov 05, 2025 00:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15074992421,2cyclictest4523-21H212:26:330
15075992314,5cyclictest0-21swapper/123:50:201
1507499220,4cyclictest0-21swapper/000:12:260
1507599210,4cyclictest0-21swapper/123:56:091
1507599210,3cyclictest0-21swapper/119:17:211
1507699203,15cyclictest21242-21smartctl23:10:202
15076992015,3cyclictest10479-21grep23:50:152
15075992012,4cyclictest0-21swapper/100:27:491
1507699192,16cyclictest0-21swapper/200:29:022
15076991917,1cyclictest28-21ksoftirqd/221:20:212
15076991916,2cyclictest4516-21apt-key23:40:012
15076991916,2cyclictest1127-21cut19:40:162
15076991912,4cyclictest0-21swapper/200:00:152
15075991917,1cyclictest0-21swapper/121:14:561
15075991917,1cyclictest0-21swapper/121:14:561
15075991914,3cyclictest0-21swapper/100:05:181
1507599190,2cyclictest4536-21H212:26:331
1507599190,17cyclictest4528-21H212:26:331
1507499194,1cyclictest0-21swapper/023:49:590
1507499192,16cyclictest967-21thermald22:25:220
1507699183,1cyclictest28-21ksoftirqd/221:17:002
1507699182,1cyclictest28985-21chrt19:34:322
1507699182,15cyclictest28-21ksoftirqd/221:52:552
15076991816,1cyclictest0-21swapper/223:01:162
15076991816,1cyclictest0-21swapper/221:35:222
15076991816,1cyclictest0-21swapper/221:35:222
15076991815,2cyclictest4526-21H212:26:332
15076991815,2cyclictest12028-21tr20:00:152
15076991814,2cyclictest4523-21H212:26:332
15076991813,3cyclictest19983-21nfsd400:05:182
1507699181,16cyclictest4523-21H212:26:332
1507699180,3cyclictest31947-21cat22:35:002
1507699180,3cyclictest28896-21awk21:30:202
1507699180,2cyclictest4538-21H212:26:332
1507699180,2cyclictest4532-21H212:26:332
1507699180,2cyclictest4530-21H212:26:332
1507699180,2cyclictest4528-21H212:26:332
1507699180,1cyclictest0-21swapper/222:50:212
1507699180,16cyclictest4530-21H212:26:332
1507699180,16cyclictest13003-21sshd21:00:552
1507599183,1cyclictest0-21swapper/120:51:321
15075991816,1cyclictest0-21swapper/122:44:371
15075991814,3cyclictest4536-21H212:26:331
15075991814,3cyclictest4528-21H212:26:331
15075991814,3cyclictest414-20systemd-journal21:10:001
1507599180,3cyclictest4538-21H212:26:331
1507599180,3cyclictest1404-21lxd19:58:561
1507599180,2cyclictest4536-21H212:26:331
1507599180,2cyclictest4523-21H212:26:331
1507599180,16cyclictest7436-21sed21:50:021
1507599180,16cyclictest4532-21H212:26:331
1507599180,0cyclictest0-21swapper/119:50:131
1507499182,15cyclictest4532-21H212:26:330
1507499182,15cyclictest122812chrt23:50:430
1507499182,15cyclictest0-21swapper/000:03:530
15074991817,1cyclictest9-21ksoftirqd/020:00:470
15074991816,1cyclictest9-21ksoftirqd/000:25:490
15074991816,1cyclictest0-21swapper/023:44:310
15074991816,1cyclictest0-21swapper/020:19:080
1507499181,16cyclictest29376-21cat00:25:000
1507499180,2cyclictest4534-21H212:26:330
1507499180,17cyclictest0-21swapper/022:12:280
1507699172,1cyclictest0-21swapper/219:51:422
15076991715,1cyclictest0-21swapper/222:35:162
15076991715,1cyclictest0-21swapper/220:50:012
15076991715,1cyclictest0-21swapper/220:50:012
15076991715,1cyclictest0-21swapper/219:45:192
15076991714,2cyclictest8503-21kernelversion23:45:162
15076991714,2cyclictest4593-21H212:26:332
15076991714,2cyclictest3350-21master22:56:092
15076991714,2cyclictest31358-21expr23:30:172
15076991714,2cyclictest13626-21df22:00:142
15076991714,2cyclictest0-21swapper/223:37:562
15076991713,3cyclictest4536-21H212:26:332
15076991713,3cyclictest4532-21H212:26:332
15076991713,3cyclictest4532-21H212:26:332
1507699171,1cyclictest0-21swapper/220:35:012
1507699170,2cyclictest4593-21H212:26:332
1507699170,2cyclictest4536-21H212:26:332
1507699170,2cyclictest4532-21H212:26:332
1507699170,2cyclictest4530-21H212:26:332
1507699170,2cyclictest4526-21H212:26:332
1507699170,2cyclictest4523-21H212:26:332
1507699170,2cyclictest4523-21H212:26:332
1507699170,2cyclictest4523-21H212:26:332
1507699170,2cyclictest22701-21nfsd422:15:182
1507699170,2cyclictest1-21systemd21:40:012
1507699170,1cyclictest0-21swapper/222:20:352
1507699170,16cyclictest4593-21H212:26:332
1507699170,16cyclictest4536-21H212:26:332
1507699170,16cyclictest4534-21H212:26:332
1507699170,16cyclictest4534-21H212:26:332
1507699170,16cyclictest4534-21H212:26:332
1507699170,16cyclictest4523-21H212:26:332
1507699170,16cyclictest30008-21snapd20:51:492
1507699170,16cyclictest29913-21/usr/sbin/munin19:35:142
1507699170,16cyclictest27408-21munin-plugin-st21:30:002
1507699170,16cyclictest21275-21sed20:15:222
1507699170,16cyclictest16991-21nfsd422:05:212
15075991716,1cyclictest21-21ksoftirqd/120:36:051
15075991715,1cyclictest25408-21cpuspeed_turbos23:20:131
15075991715,1cyclictest12360-21expr20:00:151
15075991715,1cyclictest0-21swapper/120:50:021
15075991715,1cyclictest0-21swapper/120:50:011
15075991714,2cyclictest9899-21perf23:50:001
15075991714,2cyclictest5771-21uname23:40:171
15075991714,2cyclictest4532-21H212:26:331
15075991714,2cyclictest4530-21H212:26:331
15075991714,2cyclictest4530-21H212:26:331
15075991714,2cyclictest4526-21H212:26:331
15075991714,2cyclictest4526-21H212:26:331
15075991714,2cyclictest25515-21cut00:15:191
15075991714,2cyclictest25515-21cut00:15:191
15075991714,2cyclictest22087-21taskset21:20:021
15075991714,2cyclictest12163-21tune2fs22:55:161
15075991713,3cyclictest4532-21H212:26:331
1507599170,2cyclictest4593-21H212:26:331
1507599170,2cyclictest4534-21H212:26:331
1507599170,2cyclictest4532-21H212:26:331
1507599170,2cyclictest20847-21fschecks_time20:15:191
1507599170,16cyclictest4593-21H212:26:331
1507599170,16cyclictest4593-21H212:26:331
1507599170,16cyclictest4593-21H212:26:331
1507599170,16cyclictest4536-21H212:26:331
1507599170,16cyclictest4536-21H212:26:331
1507599170,16cyclictest4536-21H212:26:331
1507599170,16cyclictest4536-21H212:26:331
1507599170,16cyclictest4532-21H212:26:331
1507599170,16cyclictest4528-21H212:26:331
1507599170,16cyclictest4526-21H212:26:331
1507599170,16cyclictest4523-21H212:26:331
1507599170,16cyclictest31281-21cat22:30:241
1507599170,16cyclictest26847-21awk20:25:191
1507599170,16cyclictest23257-21wc00:10:221
1507599170,16cyclictest22084-21awk19:20:211
1507599170,16cyclictest17178-21cut20:10:001
1507599170,16cyclictest0-21swapper/120:20:561
1507599170,15cyclictest4538-21H212:26:331
15074991715,1cyclictest6572sleep020:35:490
15074991714,2cyclictest5984-21find22:45:130
15074991714,2cyclictest4593-21H212:26:330
15074991714,2cyclictest4538-21H212:26:330
15074991714,2cyclictest4536-21H212:26:330
15074991713,3cyclictest4536-21H212:26:330
15074991713,3cyclictest1214-21gdbus21:40:010
15074991713,2cyclictest4538-21H212:26:330
1507499171,15cyclictest4532-21H212:26:330
1507499171,15cyclictest17513-21timerandwakeup22:05:240
1507499171,15cyclictest0-21swapper/019:45:190
1507499170,2cyclictest4538-21H212:26:330
1507499170,2cyclictest4536-21H212:26:330
1507499170,2cyclictest396-21expr22:35:150
1507499170,2cyclictest30891-21df21:35:150
1507499170,2cyclictest30891-21df21:35:150
1507499170,2cyclictest23372-21apache200:05:080
1507499170,2cyclictest22939-21cat23:15:150
1507499170,2cyclictest21476-21bounce21:17:320
1507499170,2cyclictest10867-21proxymap22:52:490
1507499170,1cyclictest4526-21H212:26:330
1507499170,16cyclictest5020-21/usr/sbin/munin00:35:190
1507499170,16cyclictest4538-21H212:26:330
1507499170,16cyclictest4538-21H212:26:330
1507499170,16cyclictest30001-21snapd19:51:490
1507499170,16cyclictest29137-21systemctl21:30:230
1507499170,16cyclictest28426-21expr23:25:150
1507499170,16cyclictest2815-21gmain19:16:160
1507499170,16cyclictest26862-21find23:20:210
1507499170,16cyclictest26476-21gpgv19:30:010
1507499170,16cyclictest2434-21timerwakeupswit00:30:220
1507499170,16cyclictest24286-21grep19:25:150
1507499170,16cyclictest24286-21grep19:25:150
1507499170,16cyclictest1585-21expr23:35:140
1507499170,16cyclictest14798-21cstates20:05:170
1507499170,15cyclictest4534-21H212:26:330
1507499170,15cyclictest4530-21H212:26:330
1507499170,15cyclictest22679-21nfsd422:15:180
15076991614,1cyclictest0-21swapper/219:25:142
15076991614,1cyclictest0-21swapper/219:25:142
1507699160,1cyclictest0-21swapper/220:55:152
1507699160,15cyclictest23382-21cupsd21:45:022
1507699160,15cyclictest10639-21ls21:55:152
1507699160,15cyclictest0-21swapper/221:05:072
1507699160,15cyclictest0-21swapper/220:25:162
15075991614,1cyclictest2667-21ps23:35:201
15075991614,1cyclictest0-21swapper/123:30:041
15075991614,1cyclictest0-21swapper/122:05:161
15075991614,1cyclictest0-21swapper/121:45:141
15075991614,1cyclictest0-21swapper/120:55:141
15075991614,1cyclictest0-21swapper/119:35:021
15075991614,1cyclictest0-21swapper/119:25:141
15075991614,1cyclictest0-21swapper/119:25:141
15075991614,1cyclictest0-21swapper/100:30:011
15075991613,2cyclictest4536-21H212:26:331
1507599160,15cyclictest0-21swapper/121:00:401
15074991614,1cyclictest13062-21grep22:00:130
15074991614,1cyclictest0-21swapper/022:55:150
15074991614,1cyclictest0-21swapper/021:10:190
15074991614,1cyclictest0-21swapper/021:10:190
15074991614,1cyclictest0-21swapper/021:04:210
15074991614,1cyclictest0-21swapper/020:50:180
15074991614,1cyclictest0-21swapper/020:40:220
15074991614,1cyclictest0-21swapper/019:35:210
15074991613,2cyclictest3441-21gsd-color20:30:180
15074991613,2cyclictest23961-21memory20:20:210
1507499160,15cyclictest31376-21/usr/sbin/munin23:30:180
1507499160,15cyclictest30349-21cut22:30:180
1507499160,15cyclictest14206-21awk23:00:100
1507499160,15cyclictest0-21swapper/021:20:320
1507499160,15cyclictest0-21swapper/020:45:160
1507499160,15cyclictest0-21swapper/020:45:160
1507499160,15cyclictest0-21swapper/019:20:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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