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2026-06-19 - 09:04
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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
Characteristics of the 20 highest latencies:
System rack6slot6 (updated Fri Jun 19, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
44519910630053342,52945cyclictest9-1ksoftirqd/023:47:030
44519910627553415,52860cyclictest0-21swapper20:50:520
44519910621953470,52749cyclictest0-21swapper19:44:130
44519910620353437,52766cyclictest0-21swapper21:04:460
44519910615653054,53100cyclictest0-21swapper00:22:130
44519910613753052,53083cyclictest0-21swapper23:02:000
44519910613453436,52698cyclictest0-21swapper20:12:210
44519910612153020,53099cyclictest0-21swapper22:03:030
44519910607152982,53087cyclictest0-21swapper19:37:310
44519910604652976,53065cyclictest0-21swapper22:12:460
44519910604453020,53016cyclictest20818-21munin-node00:00:270
44519910603252968,53062cyclictest0-21swapper20:36:180
44519910602752959,53066cyclictest0-21swapper19:23:070
44519910602352941,53080cyclictest0-21swapper20:05:090
44519910600952949,53058cyclictest0-21swapper19:48:340
44519910599653008,52986cyclictest15054-21ssh23:51:140
44519910598152929,53047cyclictest0-21swapper00:26:340
44519910581352912,52899cyclictest10905-21ssh22:16:270
44519910534052974,52363cyclictest23259-21munin-node21:50:090
44519910532253100,52219cyclictest0-21swapper22:29:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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