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2026-07-08 - 07:25
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot2.osadl.org (updated Wed Jul 08, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
621124132,0sleep30-21swapper/319:25:303
624123928,0sleep00-21swapper/019:25:510
606023827,0sleep20-21swapper/219:23:452
617923724,0sleep10-21swapper/119:25:041
8305070,0irq/26-0000:00:15033-21munin-run21:47:082
8305060,0irq/26-0000:00:27092-21open_files19:37:282
64299966,0cyclictest83050irq/26-0000:00:20:33:122
64299960,0cyclictest0-21swapper/223:52:082
64289960,0cyclictest0-21swapper/120:47:201
339960,0migration/39187-21aten_r1power_en22:02:193
339960,0migration/34564-21sh23:50:193
339960,0migration/331725-21sh23:08:353
339960,0migration/326750-21sh00:40:413
339960,0migration/319843-21sh21:29:393
339960,0migration/317029-21sh00:32:433
339960,0migration/313798-21munin-node00:52:253
29805060,0irq/28-eth0-rx-8747-21sh22:01:523
29805060,0irq/28-eth0-rx-25602-21cut22:27:253
29805060,0irq/28-eth0-rx-23835-21munin-node22:07:273
29805060,0irq/28-eth0-rx-1738-21perl23:12:213
149960,0migration/07843-21fschecks_count22:57:200
149960,0migration/03608-21sh00:47:070
149960,0migration/012341-21sh23:52:490
149960,0migration/012251-21sh22:38:480
64299955,0cyclictest0-21swapper/223:33:032
64299955,0cyclictest0-21swapper/223:28:572
64299955,0cyclictest0-21swapper/220:47:312
64299950,0cyclictest0-21swapper/222:54:352
64299950,0cyclictest0-21swapper/222:21:002
64289955,0cyclictest0-21swapper/123:58:151
64289955,0cyclictest0-21swapper/120:52:231
64289955,0cyclictest0-21swapper/100:53:361
64289950,0cyclictest0-21swapper/122:59:461
64279955,0cyclictest0-21swapper/023:34:160
64279955,0cyclictest0-21swapper/023:30:570
64279955,0cyclictest0-21swapper/023:13:170
64279953,0cyclictest32477-21kworker/0:000:22:250
64279952,0cyclictest32477-21kworker/0:000:12:230
64279950,0cyclictest0-21swapper/021:56:020
64279950,0cyclictest0-21swapper/021:27:110
64279950,0cyclictest0-21swapper/020:12:090
64279950,0cyclictest0-21swapper/000:10:500
339950,0migration/39155-21kthreadcore21:22:243
339950,0migration/37035-21munin-node19:27:183
339950,0migration/34263-21idleruntime23:32:243
339950,0migration/331691-21runrttasks21:55:033
339950,0migration/331636-21timerandwakeup00:22:333
339950,0migration/331133-21munin-node20:02:343
339950,0migration/329668-21kthreadcore20:47:273
339950,0migration/329553-21munin-node22:32:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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