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2026-07-25 - 19:45
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Sat Jul 25, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2902427049,8sleep10-21swapper/107:06:431
2897326957,8sleep00-21swapper/007:06:100
172382690,1sleep10-21swapper/110:39:521
268812650,1sleep10-21swapper/112:18:351
29361993434,0cyclictest0-21swapper/107:34:381
29360993115,12cyclictest100250irq/107-eth1-rx09:33:110
29361992827,1cyclictest31903-21ssh12:24:391
29360992828,0cyclictest0-21swapper/010:36:430
2936199276,6cyclictest91rcu_preempt09:08:391
29361992725,1cyclictest24-21ksoftirqd/111:08:201
29361992710,9cyclictest0-21swapper/110:26:271
2936199270,1cyclictest0-21swapper/112:16:301
29360992710,2cyclictest0-21swapper/010:56:140
29360992710,2cyclictest0-21swapper/010:10:430
2936099270,4cyclictest0-21swapper/011:28:420
2936099260,2cyclictest91rcu_preempt10:38:420
2936099260,1cyclictest32524-21ssh10:59:540
29361992523,1cyclictest24-21ksoftirqd/110:13:191
2936199250,4cyclictest0-21swapper/112:30:581
29360992518,4cyclictest29358-21cyclictest12:11:570
29360992511,6cyclictest0-21swapper/007:38:340
29361992424,0cyclictest0-21swapper/109:24:561
29361992416,5cyclictest0-21swapper/108:23:321
2936199241,22cyclictest26332-21ssh10:53:001
2936199241,22cyclictest0-21swapper/110:03:101
2936099240,23cyclictest0-21swapper/009:54:540
2936199232,2cyclictest0-21swapper/111:58:281
29361992322,0cyclictest24-21ksoftirqd/109:58:191
29361992321,1cyclictest24-21ksoftirqd/108:13:361
29361992314,6cyclictest100150irq/106-eth1-rx11:32:481
29361992312,7cyclictest3590-21ssh10:23:021
29361992311,8cyclictest100250irq/107-eth1-rx10:16:561
2936199231,0cyclictest16406-21kworker/u4:111:45:351
2936099234,14cyclictest0-21swapper/008:43:400
29360992319,3cyclictest6784-21apache210:02:540
29360992319,1cyclictest7-21ksoftirqd/010:13:350
2936199228,10cyclictest24-21ksoftirqd/111:56:261
2936199222,9cyclictest0-21swapper/108:48:341
29361992221,1cyclictest6814-21apache210:54:281
29361992220,1cyclictest6784-21apache211:34:111
29361992215,5cyclictest6814-21apache209:36:231
29361992214,4cyclictest0-21swapper/111:00:201
29361992211,6cyclictest100250irq/107-eth1-rx09:38:381
2936199220,21cyclictest17330-21apache_accesses11:23:291
2936199220,19cyclictest32135-21ssh11:43:111
29360992210,6cyclictest0-21swapper/010:28:380
29361992121,0cyclictest24-21ksoftirqd/109:28:401
29361992119,2cyclictest0-21swapper/109:47:021
29361992118,2cyclictest6814-21apache207:44:171
29361992115,2cyclictest24-21ksoftirqd/110:33:461
29361992110,3cyclictest0-21swapper/108:03:281
29361992110,1cyclictest0-21swapper/111:22:091
2936199210,20cyclictest0-21swapper/112:05:131
2936099213,17cyclictest26760-21diskstats12:18:350
29360992119,1cyclictest0-21swapper/010:20:410
29360992117,1cyclictest32731-21rm09:35:250
29360992110,4cyclictest0-21swapper/010:45:410
29360992110,3cyclictest0-21swapper/011:54:210
29360992110,3cyclictest0-21swapper/008:58:400
29360992110,0cyclictest0-21swapper/011:03:340
748322010,0sleep00-21swapper/012:35:060
2936199204,8cyclictest0-21swapper/111:48:331
2936199204,8cyclictest0-21swapper/109:13:321
29361992020,0cyclictest24-21ksoftirqd/112:12:011
29361992010,0cyclictest0-21swapper/110:04:481
29360992014,2cyclictest7-21ksoftirqd/012:28:390
29360992014,1cyclictest7-21ksoftirqd/009:10:560
2936099201,1cyclictest0-21swapper/011:27:270
29360992010,5cyclictest0-21swapper/009:46:520
29360992010,5cyclictest0-21swapper/009:24:090
29360992010,4cyclictest0-21swapper/007:23:330
29360992010,3cyclictest0-21swapper/011:58:320
29360992010,2cyclictest0-21swapper/012:18:080
29360992010,2cyclictest0-21swapper/011:08:340
2936199195,9cyclictest0-21swapper/112:33:341
2936199195,6cyclictest0-21swapper/108:33:341
2936199193,2cyclictest1199-21runrttasks11:15:011
29361991917,1cyclictest1147-21watchprog-snmpd08:42:551
2936199191,3cyclictest91rcu_preempt11:09:351
29361991913,1cyclictest91rcu_preempt10:44:341
2936199191,2cyclictest91rcu_preempt09:23:201
29361991910,8cyclictest0-21swapper/109:51:161
29361991910,7cyclictest0-21swapper/107:48:351
29361991910,4cyclictest0-21swapper/110:29:391
29361991910,3cyclictest0-21swapper/107:08:321
2936099197,8cyclictest0-21swapper/011:45:540
2936099192,8cyclictest0-21swapper/007:53:410
29360991915,2cyclictest6814-21apache209:41:090
29360991914,1cyclictest7-21ksoftirqd/009:23:200
29360991913,2cyclictest81ktimersoftd/010:28:110
29360991913,1cyclictest7-21ksoftirqd/010:06:300
29360991912,5cyclictest7-21ksoftirqd/012:24:390
29360991911,5cyclictest0-21swapper/007:58:370
2936099191,12cyclictest0-21swapper/011:15:180
29360991910,2cyclictest0-21swapper/008:24:480
2936199188,4cyclictest9088-21/usr/sbin/munin09:03:331
2936199183,10cyclictest0-21swapper/107:28:381
29361991817,1cyclictest24-21ksoftirqd/108:53:321
29361991817,0cyclictest24-21ksoftirqd/107:38:391
2936099185,8cyclictest0-21swapper/008:28:320
2936099183,8cyclictest0-21swapper/011:33:410
2936099183,11cyclictest0-21swapper/008:04:480
2936099182,8cyclictest0-21swapper/007:13:330
29360991818,0cyclictest0-21swapper/010:48:400
29360991818,0cyclictest0-21swapper/009:15:200
29360991811,4cyclictest0-21swapper/011:38:390
29360991811,3cyclictest7-21ksoftirqd/012:04:330
29360991810,7cyclictest0-21swapper/009:48:400
29360991810,2cyclictest0-21swapper/011:50:290
2936199179,6cyclictest0-21swapper/107:58:281
2936199172,7cyclictest0-21swapper/107:23:321
2936199172,4cyclictest91rcu_preempt07:53:321
29361991712,5cyclictest29358-21cyclictest09:03:061
29361991710,0cyclictest0-21swapper/108:46:061
2936199170,1cyclictest91rcu_preempt08:18:361
2936099178,2cyclictest7-21ksoftirqd/007:33:210
2936099177,3cyclictest3276-21apache_accesses08:48:330
2936099175,8cyclictest0-21swapper/008:33:340
2936099174,2cyclictest91rcu_preempt08:18:330
29360991716,1cyclictest100250irq/107-eth1-rx11:18:350
29360991716,0cyclictest7-21ksoftirqd/007:18:340
29360991715,1cyclictest238072sleep008:16:380
29360991710,3cyclictest0-21swapper/008:08:330
29360991710,3cyclictest0-21swapper/007:43:370
29360991710,2cyclictest0-21swapper/007:48:320
29360991710,2cyclictest0-21swapper/007:08:310
2936099163,6cyclictest0-21swapper/009:03:340
29360991614,1cyclictest6257-21ls08:53:390
29360991610,3cyclictest0-21swapper/008:38:550
221521610,0sleep10-21swapper/107:19:261
2936199153,5cyclictest664-21idleruntime-cro07:18:201
29361991510,3cyclictest0-21swapper/108:08:341
29361991510,2cyclictest0-21swapper/108:28:331
2936099152,3cyclictest4956-21tune2fs07:28:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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