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2025-12-31 - 22:41
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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 50 highest latencies:
System rackcslot2.osadl.org (updated Wed Dec 31, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1173526957,8sleep00-21swapper/007:06:320
160702680,0sleep00-21swapper/010:17:150
1202026855,9sleep10-21swapper/107:09:301
265282670,0sleep10-21swapper/111:54:051
54132650,0sleep10-21swapper/111:26:011
12238993210,10cyclictest0-21swapper/011:41:330
12239993111,19cyclictest22060-21kworker/1:008:15:571
12239993028,1cyclictest24-21ksoftirqd/110:49:531
12238992914,12cyclictest27419-21ssh12:35:180
12239992810,3cyclictest0-21swapper/112:06:401
12238992820,4cyclictest100450irq/109-eth1-tx10:38:430
1223899281,26cyclictest8754-21kworker/0:211:17:050
1223899280,26cyclictest7730-21/usr/sbin/munin11:30:090
12238992727,0cyclictest0-21swapper/008:51:080
12238992721,3cyclictest636-21nscd09:28:360
12238992624,1cyclictest0-21swapper/011:25:390
12238992621,4cyclictest22102-21apache209:41:280
12239992521,3cyclictest9431-1kworker/u5:210:17:481
12239992521,3cyclictest22102-21apache211:09:231
12239992520,3cyclictest0-21swapper/109:12:321
1223999250,13cyclictest0-21swapper/110:35:101
1223899258,16cyclictest8754-21kworker/0:210:14:230
1223899252,22cyclictest0-21swapper/012:21:510
1223899251,1cyclictest1709-21sshd09:18:520
12238992510,4cyclictest0-21swapper/009:10:100
1223999246,11cyclictest0-21swapper/107:55:091
1223999241,22cyclictest27385-21df_inode11:55:081
12239992410,6cyclictest0-21swapper/110:28:451
1223899240,21cyclictest1339-21fschecks_count10:40:070
1223899240,0cyclictest24803-21grep07:40:090
1223999236,17cyclictest22060-21kworker/1:007:51:111
12239992323,0cyclictest0-21swapper/111:17:201
12239992323,0cyclictest0-21swapper/108:46:191
12239992319,2cyclictest22129-21apache208:52:441
12239992318,1cyclictest0-21swapper/112:11:261
12239992310,5cyclictest0-21swapper/112:22:421
12239992310,4cyclictest0-21swapper/110:42:421
1223899236,16cyclictest27061-21kworker/0:011:59:470
12238992322,1cyclictest0-21swapper/008:10:030
12238992317,4cyclictest22129-21apache210:57:200
1223899231,21cyclictest8754-21kworker/0:211:07:470
12238992311,6cyclictest0-21swapper/009:35:060
1223999222,11cyclictest0-21swapper/107:30:061
12239992219,1cyclictest24-21ksoftirqd/110:14:541
12239992211,7cyclictest100150irq/106-eth1-rx11:24:221
12239992210,7cyclictest100250irq/107-eth1-rx12:35:171
12239992210,7cyclictest0-21swapper/110:20:001
12239992210,5cyclictest0-21swapper/111:10:071
12239992210,4cyclictest0-21swapper/110:55:131
12239992210,1cyclictest0-21swapper/110:51:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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