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2025-12-09 - 03:19
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Tue Dec 09, 2025 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2992993423,10cyclictest22143-21expr23:30:132
2992992314,8cyclictest14111-21iwlist00:10:172
299299220,21cyclictest9245-21ntp_kernel_pll_20:15:192
299199225,16cyclictest29171-21expr19:55:151
299199225,16cyclictest16422-21expr23:20:141
2991992219,2cyclictest9428-21mailstats20:15:211
2991992219,2cyclictest14667-21ntpq00:10:201
2991992218,3cyclictest32278-21grep22:50:221
2991992218,3cyclictest17513-21cat22:25:181
2991992218,3cyclictest12957-21awk20:25:011
2991992217,4cyclictest23281-21systemctl23:30:211
299099224,11cyclictest0-21swapper/020:20:010
299099220,21cyclictest823-21systemd-network23:31:340
299099220,18cyclictest0-21swapper/022:44:110
299199216,14cyclictest0-21swapper/123:57:541
299199214,2cyclictest8056-21apt-config22:10:011
299199214,2cyclictest6226-21sed20:10:181
299199214,2cyclictest0-21swapper/123:00:201
299199214,16cyclictest951-21sed21:55:211
299199214,16cyclictest568-21sed21:00:011
299199214,16cyclictest19019-21expr23:25:151
299199214,16cyclictest17600-21cut00:15:231
299199214,16cyclictest14159-21date19:30:011
2991992118,2cyclictest9340-21munin-plugin-st21:15:011
2991992118,2cyclictest7450-21sed00:00:021
2991992118,2cyclictest6441-21sed21:10:011
2991992118,2cyclictest3568-21grep19:10:171
2991992118,2cyclictest294632chrt00:37:251
2991992118,2cyclictest28948-21if_lxdbr022:45:171
2991992118,2cyclictest26668-21sed20:45:231
2991992118,2cyclictest23175-21awk00:25:191
2991992118,2cyclictest0-21swapper/121:35:231
2991992117,3cyclictest12813-21sort21:20:171
2991992117,3cyclictest11112-21sed23:10:161
2991992117,3cyclictest0-21swapper/123:35:181
2991992116,4cyclictest0-21swapper/120:05:211
2990992112,5cyclictest0-21swapper/019:41:340
299299200,16cyclictest0-21swapper/220:14:362
299199203,2cyclictest1696-21cut21:00:191
299199203,2cyclictest0-21swapper/119:20:171
299199203,16cyclictest32095-21mailstats23:45:221
299199203,16cyclictest11465-21expr22:15:151
299199203,16cyclictest0-21swapper/119:40:231
299199202,3cyclictest0-21swapper/120:35:011
299199202,3cyclictest0-21swapper/120:00:241
299199202,3cyclictest0-21swapper/120:00:241
2991992017,2cyclictest4526-21H212:26:331
2991992017,2cyclictest23070-21wc20:40:171
2991992017,2cyclictest17852-21tr19:35:141
2991992016,3cyclictest0-21swapper/122:35:181
2991992016,3cyclictest0-21swapper/121:26:271
2991992016,3cyclictest0-21swapper/119:30:161
299199200,17cyclictest4523-21H212:26:331
299299193,1cyclictest23601-21cat00:25:232
299299193,11cyclictest20907-21perf23:30:002
2992991917,1cyclictest28-21ksoftirqd/223:02:552
2992991914,2cyclictest4526-21H212:26:332
299299190,16cyclictest4538-21H212:26:332
299299190,16cyclictest4536-21H212:26:332
299299190,16cyclictest4526-21H212:26:332
299199192,2cyclictest0-21swapper/122:20:161
299199192,16cyclictest4523-21H212:26:331
299199192,16cyclictest0-21swapper/122:55:241
2991991916,2cyclictest28472-21grep23:40:161
2991991916,2cyclictest1185-21nfsd21:30:101
2991991916,2cyclictest0-21swapper/123:50:201
2991991916,2cyclictest0-21swapper/122:40:141
2991991916,2cyclictest0-21swapper/122:00:221
2991991916,2cyclictest0-21swapper/121:50:141
2991991916,2cyclictest0-21swapper/121:40:161
2991991916,2cyclictest0-21swapper/120:50:221
2991991916,2cyclictest0-21swapper/119:50:141
2991991916,2cyclictest0-21swapper/119:45:151
299199191,17cyclictest0-21swapper/121:45:151
299199191,17cyclictest0-21swapper/121:45:141
299199191,17cyclictest0-21swapper/100:30:021
299199190,16cyclictest4528-21H212:26:331
299199190,16cyclictest4526-21H212:26:331
299199190,16cyclictest4526-21H212:26:331
299099193,15cyclictest0-21swapper/022:45:160
2990991917,1cyclictest28041-21grep00:35:150
2990991913,5cyclictest0-21swapper/022:55:200
299099190,18cyclictest4528-21H212:26:330
299099190,16cyclictest4593-21H212:26:330
299299182,15cyclictest2492-21if_err_enp1s022:55:192
2992991817,1cyclictest28-21ksoftirqd/220:02:172
2992991817,1cyclictest28-21ksoftirqd/220:02:172
2992991815,2cyclictest4532-21H212:26:332
2992991814,4cyclictest0-21swapper/219:50:402
2992991814,2cyclictest4593-21H212:26:332
299299181,2cyclictest4538-21H212:26:332
299299180,2cyclictest4538-21H212:26:332
299299180,1cyclictest111rcu_preempt21:10:172
299299180,17cyclictest9499-21cpuspeed_turbos21:15:152
299299180,17cyclictest823-21systemd-network00:34:262
299299180,17cyclictest700-21dump-pmu-power22:55:002
299299180,17cyclictest4538-21H212:26:332
299299180,17cyclictest4534-21H212:26:332
299299180,17cyclictest3355-21qmgr19:49:362
299299180,17cyclictest13160-21cron22:17:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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