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2025-12-17 - 21:51
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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 rackcslot2.osadl.org (updated Wed Dec 17, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
959227154,9sleep10-21swapper/107:09:391
955626552,8sleep00-21swapper/007:09:160
9805994110,30cyclictest0-21swapper/110:20:181
980499419,0cyclictest91rcu_preempt10:15:110
9805994010,29cyclictest0-21swapper/110:35:161
9805994010,29cyclictest0-21swapper/110:01:081
9805994010,29cyclictest0-21swapper/108:25:151
9805994010,29cyclictest0-21swapper/107:35:211
9805993914,24cyclictest0-21swapper/112:31:591
9805993910,29cyclictest0-21swapper/110:45:171
9805993910,28cyclictest0-21swapper/109:32:471
9805993810,27cyclictest0-21swapper/111:18:071
9805993810,27cyclictest0-21swapper/107:55:161
9805993810,27cyclictest0-21swapper/107:11:581
9805993710,26cyclictest0-21swapper/110:58:071
9805993710,25cyclictest0-21swapper/112:20:101
9805993636,0cyclictest0-21swapper/112:02:441
9805993610,25cyclictest0-21swapper/111:41:571
9805993610,23cyclictest0-21swapper/112:35:131
9805993522,13cyclictest0-21swapper/108:35:201
9805993515,20cyclictest0-21swapper/111:30:101
9805993510,7cyclictest0-21swapper/109:49:501
9805993510,24cyclictest0-21swapper/108:15:181
980499358,3cyclictest7-21ksoftirqd/008:32:330
980499358,2cyclictest91rcu_preempt09:30:150
9805993411,21cyclictest0-21swapper/109:21:271
9805993410,24cyclictest0-21swapper/108:40:271
9805993410,23cyclictest0-21swapper/111:45:171
9805993410,22cyclictest0-21swapper/111:25:131
9804993433,0cyclictest7-21ksoftirqd/007:40:160
9804993413,1cyclictest91rcu_preempt08:51:290
9805993312,19cyclictest0-21swapper/109:03:091
9805993310,23cyclictest0-21swapper/110:05:151
9805993310,23cyclictest0-21swapper/108:05:111
9805993310,22cyclictest0-21swapper/111:23:511
9805993310,22cyclictest0-21swapper/107:40:191
980599330,6cyclictest0-21swapper/107:45:161
980599330,4cyclictest19637-21apache208:50:131
9804993333,0cyclictest0-21swapper/007:23:460
980599324,27cyclictest8957-21/usr/sbin/munin08:30:151
9805993210,21cyclictest0-21swapper/111:51:231
9805993210,21cyclictest0-21swapper/108:58:191
9805993210,20cyclictest0-21swapper/108:04:261
9805993110,6cyclictest0-21swapper/110:10:121
9805993110,5cyclictest0-21swapper/111:55:141
9805993110,3cyclictest0-21swapper/108:11:141
9805993110,17cyclictest0-21swapper/110:50:151
980499318,3cyclictest91rcu_preempt08:15:170
980599303,26cyclictest15014-21taskset07:20:461
9805993016,14cyclictest0-21swapper/111:39:211
9805993016,14cyclictest0-21swapper/109:15:171
9805993010,5cyclictest0-21swapper/108:46:091
9805993010,20cyclictest0-21swapper/110:29:201
9805993010,19cyclictest0-21swapper/112:16:141
9805993010,18cyclictest0-21swapper/112:06:101
9805993010,17cyclictest0-21swapper/110:30:221
9805993010,15cyclictest0-21swapper/109:25:051
980599300,29cyclictest29514-21users12:10:181
9805992910,7cyclictest0-21swapper/109:38:091
9805992910,18cyclictest0-21swapper/110:40:221
9805992910,18cyclictest0-21swapper/109:50:451
9805992910,18cyclictest0-21swapper/109:10:161
9805992910,18cyclictest0-21swapper/109:07:141
9805992910,18cyclictest0-21swapper/108:20:391
9805992910,18cyclictest0-21swapper/107:31:381
9804992926,2cyclictest49792sleep012:31:590
9804992926,1cyclictest7-21ksoftirqd/009:42:500
980599283,24cyclictest9797-21wc09:55:181
980499284,10cyclictest91rcu_preempt07:25:100
9804992824,3cyclictest28502-21kernelversion10:45:130
9804992818,4cyclictest7-21ksoftirqd/009:13:220
980599272,24cyclictest0-21swapper/110:17:301
980599271,25cyclictest0-21swapper/111:04:321
9805992710,2cyclictest0-21swapper/107:28:291
9805992710,17cyclictest0-21swapper/107:16:351
9804992724,2cyclictest8704-21apache_processe09:55:090
9804992724,2cyclictest6485-21ls08:25:000
9804992724,2cyclictest11958-21df_inode07:15:100
9804992723,3cyclictest18401-21tr10:20:100
9804992723,3cyclictest0-21swapper/008:05:150
9804992717,6cyclictest7-21ksoftirqd/009:16:250
9805992610,6cyclictest0-21swapper/111:08:551
980499269,1cyclictest91rcu_preempt12:00:120
9804992624,1cyclictest9013-21apache_processe11:20:100
9804992624,1cyclictest31993-21df10:55:120
9804992623,2cyclictest20278-21apache_accesses10:25:080
9804992623,2cyclictest13855-21smart_sda11:30:180
9804992622,3cyclictest18701-21grep08:55:160
9804992622,3cyclictest0-21swapper/009:20:170
9804992621,2cyclictest121rcuc/008:10:090
9804992616,9cyclictest21078-21grep09:00:190
9804992615,6cyclictest81ktimersoftd/011:10:140
9804992611,13cyclictest19008-21/usr/sbin/munin11:45:120
9804992525,0cyclictest0-21swapper/007:31:440
9804992522,2cyclictest28233-21apache_processe12:10:080
9804992522,2cyclictest27530-21cstates07:55:120
9804992522,2cyclictest26238-21ntp_states07:50:150
9804992522,2cyclictest1450-21cut11:00:110
9804992522,2cyclictest0-21swapper/012:09:210
9804992522,2cyclictest0-21swapper/010:50:100
9804992521,3cyclictest10930-21sshd11:25:090
9804992520,4cyclictest7187-21cron12:39:590
9805992410,5cyclictest0-21swapper/111:10:091
9805992410,13cyclictest0-21swapper/109:41:371
9804992422,1cyclictest24881-21ntp_states10:35:160
9804992421,2cyclictest24047-21if_eth107:45:130
9804992421,2cyclictest23816-21chrt11:55:470
9804992421,2cyclictest17762-21/usr/sbin/munin11:40:170
9804992421,2cyclictest14873-21grep08:45:160
9804992421,2cyclictest0-21swapper/010:04:540
9804992420,3cyclictest7451-21cat09:50:140
9804992420,3cyclictest4110-21awk11:05:170
9804992418,5cyclictest29971-21sed08:00:150
9804992412,8cyclictest0-21swapper/009:35:170
9804992410,0cyclictest0-21swapper/007:12:230
9805992310,6cyclictest0-21swapper/107:50:101
980599230,22cyclictest3388-21awk12:30:001
9804992321,1cyclictest22540-21perl10:30:120
9804992321,1cyclictest15930-21ls11:35:200
9804992320,2cyclictest7306-21entropy11:15:120
9804992318,4cyclictest19459-21apt-config07:34:590
9804992317,6cyclictest0-21swapper/009:09:590
9804992312,11cyclictest0-21swapper/008:25:120
9804992221,1cyclictest0-21swapper/012:15:120
9804992220,2cyclictest0-21swapper/012:20:140
9804992220,2cyclictest0-21swapper/010:40:110
9804992220,2cyclictest0-21swapper/010:14:590
9804992219,2cyclictest31000-21runrttasks09:26:330
9804992214,7cyclictest5576-21grep09:45:150
9804992213,8cyclictest0-21swapper/008:35:170
980499215,11cyclictest0-21swapper/010:05:100
9804992017,2cyclictest0-21swapper/011:50:080
9804992014,6cyclictest0-21swapper/012:25:140
9804991810,8cyclictest0-21swapper/008:40:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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