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2025-08-28 - 22:18
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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 rackcslot0.osadl.org (updated Thu Aug 28, 2025 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
827421640,6sleep10979399cyclictest23:36:442
717721340,0sleep20-21swapper/222:31:058
90472131107,19sleep90-21swapper/919:07:5915
90472131107,19sleep90-21swapper/919:07:5915
9018212293,24sleep20-21swapper/219:07:368
9018212293,24sleep20-21swapper/219:07:368
2344621190,1sleep50-21swapper/521:42:2711
2344621190,1sleep50-21swapper/521:42:2711
2581121160,6sleep14130-21ksoftirqd/1421:54:386
2581121160,6sleep14130-21ksoftirqd/1421:54:386
9281210990,12sleep100-21swapper/1019:10:402
9281210990,12sleep100-21swapper/1019:10:402
1989221080,1sleep90-21swapper/900:19:1515
9020210491,9sleep40-21swapper/419:07:3810
9020210491,9sleep40-21swapper/419:07:3810
267021040,2sleep10971ktimersoftd/1023:01:102
121521000,0sleep60-21swapper/620:16:3812
123952980,1sleep80-21swapper/800:01:0314
123952980,1sleep80-21swapper/800:01:0314
70882970,11sleep20-21swapper/200:25:338
207042960,0sleep90-21swapper/922:59:1715
198762960,7sleep3978299cyclictest21:53:559
198762960,7sleep3978299cyclictest21:53:559
238122950,2sleep60-21swapper/621:57:5912
76302940,1sleep50-21swapper/521:14:0611
274242940,1sleep70-21swapper/723:47:0713
154322940,1sleep150-21swapper/1522:47:057
4822910,1sleep111041rcuc/1121:43:373
4822910,1sleep111041rcuc/1121:43:373
105592910,1sleep40-21swapper/421:37:2110
105592910,1sleep40-21swapper/421:37:2110
928228872,12sleep110-21swapper/1119:10:413
928228872,12sleep110-21swapper/1119:10:413
927728876,8sleep60-21swapper/619:10:3612
927728876,8sleep60-21swapper/619:10:3612
915428876,8sleep80-21swapper/819:09:3414
915428876,8sleep80-21swapper/819:09:3414
71452880,1sleep10-21swapper/122:15:331
95112870,1sleep10-21swapper/123:56:391
95112870,1sleep10-21swapper/123:56:391
915928772,10sleep130-21swapper/1319:09:395
915928772,10sleep130-21swapper/1319:09:395
308872870,1sleep150-21swapper/1521:28:117
915328672,10sleep70-21swapper/719:09:3313
915328672,10sleep70-21swapper/719:09:3313
914728672,7sleep10-21swapper/119:09:271
914728672,7sleep10-21swapper/119:09:271
84602860,0sleep10-21swapper/121:52:331
84602860,0sleep10-21swapper/121:52:331
146302860,1sleep60-21swapper/621:11:2712
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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