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2026-08-23 - 18:42
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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 Sun Aug 23, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2514227135,31sleep00-21swapper/007:03:150
117802690,1sleep011776-21seq11:28:240
2661426749,9sleep10-21swapper/107:05:151
27069994010,5cyclictest0-21swapper/112:23:111
27069993810,6cyclictest0-21swapper/112:22:291
27069993810,4cyclictest0-21swapper/110:33:211
27069993434,0cyclictest0-21swapper/110:54:351
27068993231,0cyclictest7-21ksoftirqd/011:03:050
27069992929,0cyclictest0-21swapper/109:36:361
27069992918,11cyclictest2802-21kworker/1:112:05:571
27069992917,12cyclictest2802-21kworker/1:111:43:371
27069992910,18cyclictest0-21swapper/109:32:551
27069992827,1cyclictest0-21swapper/111:00:061
27069992810,17cyclictest0-21swapper/111:07:471
27069992810,0cyclictest0-21swapper/111:57:281
27068992810,9cyclictest100250irq/107-eth1-rx10:43:250
2706999270,23cyclictest0-21swapper/108:31:051
27068992725,1cyclictest0-21swapper/010:03:480
27069992625,1cyclictest0-21swapper/109:23:021
2706999261,24cyclictest0-21swapper/110:17:221
27069992510,7cyclictest0-21swapper/110:08:181
27069992510,2cyclictest0-21swapper/112:17:251
27068992525,0cyclictest0-21swapper/010:50:280
2706899251,3cyclictest0-21swapper/009:52:280
27068992510,9cyclictest0-21swapper/009:38:240
27068992510,3cyclictest0-21swapper/007:53:270
27068992510,2cyclictest0-21swapper/010:24:360
2706999245,7cyclictest0-21swapper/110:30:231
2706899245,18cyclictest0-21swapper/010:12:470
2706899243,0cyclictest0-21swapper/009:34:170
27068992417,5cyclictest636-21nscd11:23:000
27068992410,8cyclictest0-21swapper/007:43:150
903822310,0sleep10-21swapper/112:11:551
27069992322,1cyclictest0-21swapper/108:02:071
27069992313,6cyclictest100150irq/106-eth1-rx10:03:041
27069992311,5cyclictest231ktimersoftd/107:14:551
27069992310,8cyclictest0-21swapper/111:41:041
2706899232,20cyclictest0-21swapper/009:14:310
27068992313,6cyclictest100150irq/106-eth1-rx11:57:150
27068992310,9cyclictest100150irq/106-eth1-rx11:27:110
2176222310,0sleep00-21swapper/009:25:380
2706999222,3cyclictest0-21swapper/109:38:391
27069992214,7cyclictest4521-21apache209:55:491
27069992210,7cyclictest0-21swapper/109:03:171
27069992210,6cyclictest0-21swapper/111:33:181
27069992210,6cyclictest0-21swapper/109:15:061
27068992217,4cyclictest4495-21apache211:38:220
27068992216,5cyclictest4495-21apache212:10:410
27068992212,7cyclictest25733-21ssh12:35:070
27068992212,7cyclictest25733-21ssh12:35:070
27068992211,8cyclictest100250irq/107-eth1-rx09:18:490
2706899221,11cyclictest0-21swapper/011:03:250
27068992210,7cyclictest0-21swapper/011:58:510
27068992210,4cyclictest0-21swapper/010:30:260
2706899220,2cyclictest91rcu_preempt09:05:090
2706899220,21cyclictest8565-21diskmemload12:07:140
296822110,0sleep00-21swapper/009:44:020
2706999217,10cyclictest167-21systemd-journal07:33:051
2706999214,15cyclictest0-21swapper/111:18:201
27069992111,5cyclictest8434-21ssh10:38:191
27069992111,10cyclictest28709-21kworker/1:109:25:491
27069992110,8cyclictest0-21swapper/111:15:071
27069992110,4cyclictest0-21swapper/110:03:161
2706899214,9cyclictest0-21swapper/008:38:180
27068992116,3cyclictest26150-21kworker/0:212:23:490
27068992114,4cyclictest4495-21apache211:37:100
27068992114,4cyclictest4495-21apache210:41:300
27068992110,5cyclictest0-21swapper/012:28:240
27068992110,5cyclictest0-21swapper/011:45:180
728922010,0sleep00-21swapper/007:38:210
2706999204,15cyclictest0-21swapper/112:38:021
2706999204,15cyclictest0-21swapper/112:38:021
2706999202,10cyclictest0-21swapper/108:03:181
27069992020,0cyclictest0-21swapper/108:47:471
27069992010,5cyclictest0-21swapper/112:28:191
27069992010,4cyclictest0-21swapper/107:33:161
27068992020,0cyclictest7-21ksoftirqd/010:53:190
27068992020,0cyclictest0-21swapper/010:20:390
27068992017,2cyclictest7-21ksoftirqd/010:34:420
27068992016,3cyclictest7-21ksoftirqd/012:18:160
27068992013,5cyclictest24479-21snmpd10:18:000
27068992011,3cyclictest4460-21kworker/0:108:18:240
27068992011,3cyclictest2734-21latency_hist08:53:050
27068992011,1cyclictest91rcu_preempt07:28:180
27068992010,7cyclictest0-21swapper/009:28:220
27068992010,5cyclictest0-21swapper/008:08:250
27068992010,2cyclictest0-21swapper/008:13:180
211622010,0sleep10-21swapper/112:02:101
2706999196,4cyclictest20944-21/usr/sbin/munin08:13:251
2706999193,7cyclictest0-21swapper/111:23:221
27069991919,0cyclictest0-21swapper/108:35:241
27069991913,4cyclictest4495-21apache209:08:571
27069991912,2cyclictest0-21swapper/107:10:281
27069991911,5cyclictest100150irq/106-eth1-rx08:38:171
27069991910,6cyclictest0-21swapper/111:28:161
27069991910,6cyclictest0-21swapper/109:45:171
27069991910,5cyclictest0-21swapper/107:43:181
27069991910,4cyclictest0-21swapper/108:48:161
27069991910,4cyclictest0-21swapper/107:53:031
2706899194,8cyclictest0-21swapper/007:18:200
27068991919,0cyclictest7-21ksoftirqd/012:14:360
27068991918,1cyclictest4495-21apache209:53:490
2706899191,6cyclictest4592-21sshd07:33:160
27068991914,4cyclictest0-21swapper/009:58:180
27068991910,5cyclictest0-21swapper/008:23:140
27068991910,5cyclictest0-21swapper/007:08:160
214721910,0sleep10-21swapper/107:27:251
2706999189,8cyclictest650-21nscd10:20:331
2706999189,8cyclictest0-21swapper/111:48:171
2706999185,7cyclictest0-21swapper/108:23:231
2706999185,6cyclictest0-21swapper/110:45:271
2706999182,9cyclictest0-21swapper/107:18:171
27069991810,3cyclictest0-21swapper/110:50:371
2706999180,11cyclictest0-21swapper/109:48:261
2706899187,7cyclictest0-21swapper/008:43:240
2706899182,9cyclictest0-21swapper/011:08:170
2706899182,8cyclictest0-21swapper/011:13:280
27068991810,5cyclictest0-21swapper/008:58:160
27068991810,4cyclictest0-21swapper/008:33:200
27068991810,3cyclictest0-21swapper/009:08:240
27068991810,2cyclictest0-21swapper/008:53:160
27068991810,1cyclictest0-21swapper/007:13:220
193821810,1sleep00-21swapper/007:25:160
3203621710,0sleep10-21swapper/110:25:121
2706999178,8cyclictest0-21swapper/108:58:161
27069991710,2cyclictest0-21swapper/111:08:171
2706999170,8cyclictest19262-21head08:08:251
2706899170,1cyclictest14819-21expr07:58:200
27069991616,0cyclictest0-21swapper/107:40:121
2706999160,10cyclictest0-21swapper/107:53:221
27068991614,1cyclictest4521-21apache208:29:200
27068991610,2cyclictest0-21swapper/011:48:070
27068991510,2cyclictest0-21swapper/008:03:200
2706999142,5cyclictest0-21swapper/108:18:181
2706999141,7cyclictest0-21swapper/108:53:171
27068991410,3cyclictest0-21swapper/007:51:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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