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2026-05-21 - 11:41
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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
Characteristics of the 792 highest latencies:
System rack6slot6 (updated Thu May 21, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311589910757053447,54026cyclictest2099-21runrttasks21:04:250
311589910710053403,53601cyclictest14661-21ssh23:26:050
311589910661253478,53134cyclictest0-21swapper22:02:410
311589910656853452,53052cyclictest9-21ksoftirqd/023:57:140
311589910655553407,53148cyclictest0-21swapper20:43:280
311589910653753483,53054cyclictest0-21swapper22:15:150
311589910652553451,53010cyclictest134850irq/9-eth023:32:570
311589910652153480,53041cyclictest0-21swapper22:28:190
311589910651053435,53075cyclictest0-21swapper21:50:380
311589910649853475,53023cyclictest0-21swapper00:29:540
311589910648153418,53063cyclictest0-21swapper00:22:520
311589910646953452,53017cyclictest0-21swapper21:29:120
311589910646253478,52984cyclictest0-21swapper19:11:520
311589910642753436,52991cyclictest0-21swapper20:35:260
311589910638553457,52864cyclictest9-21ksoftirqd/022:21:370
311589910632753391,52871cyclictest0-21swapper21:11:370
311589910623753443,52794cyclictest0-21swapper19:36:090
311589910621653414,52802cyclictest0-21swapper19:17:140
311589910621153469,52742cyclictest0-21swapper19:28:170
311589910619553421,52774cyclictest0-21swapper20:52:310
311589910616953404,52765cyclictest0-21swapper21:32:330
311589910615553400,52755cyclictest0-21swapper19:48:130
311589910614853396,52752cyclictest0-21swapper22:33:000
311589910613853436,52702cyclictest0-21swapper19:30:380
311589910517053056,52112cyclictest0-21swapper23:24:550
31158995339026,53364cyclictest0-21swapper00:39:260
31158995308525,53060cyclictest0-21swapper21:23:500
31158995303326,53007cyclictest0-21swapper23:04:090
31158995301427,52987cyclictest0-21swapper20:12:200
31158995300712,6cyclictest28413-21ssh23:45:510
31158995292027,52800cyclictest0-21swapper19:58:260
311589948532801,2044cyclictest1741-21hald00:11:590
311589924731091,1255cyclictest10587-21ssh00:07:070
311589924391060,1254cyclictest2099-21runrttasks20:21:220
311589922901060,1108cyclictest0-21swapper00:32:550
311589922701056,1089cyclictest9514-21ssh23:19:540
311589922561071,1062cyclictest1907-21snmpd23:43:100
311589922491094,1063cyclictest9-21ksoftirqd/021:41:250
311589922111036,1163cyclictest0-21swapper23:37:590
311589921331009,1089cyclictest0-21swapper22:53:560
311589921211024,1060cyclictest6408-21ssh00:00:350
311589921101090,895cyclictest4860-21ssh23:12:210
311589920801064,923cyclictest0-21swapper20:46:290
31158992055934,1087cyclictest0-21swapper22:45:440
311589920541097,865cyclictest11-21rcu_preempt21:38:340
311589919651040,804cyclictest0-21swapper21:15:080
31158991929936,957cyclictest25009-21ssh22:08:330
311589919291085,719cyclictest1290-21ssh23:07:300
311589919131030,792cyclictest0-21swapper20:18:410
311589919051088,725cyclictest9-21ksoftirqd/022:44:030
311589918871065,697cyclictest16275-21diskmemload22:12:140
311589917631062,701cyclictest0-21swapper00:19:510
311589916951059,571cyclictest9-21ksoftirqd/020:34:460
311589916841081,481cyclictest18432-21ssh21:59:200
311589916191081,447cyclictest9-21ksoftirqd/022:58:370
311589916121057,555cyclictest0-21swapper20:08:180
311589915991070,436cyclictest9-21ksoftirqd/022:35:110
311589915811076,441cyclictest9-21ksoftirqd/023:54:440
311589915451017,435cyclictest0-21swapper21:07:350
311589915371016,521cyclictest0-21swapper20:04:170
311589914961096,400cyclictest0-21swapper20:26:130
311589914941095,399cyclictest0-21swapper19:22:550
311589914641056,408cyclictest0-21swapper19:53:440
31158991460691,765cyclictest0-21swapper21:48:170
311589914441086,358cyclictest0-21swapper19:44:520
311589914331080,353cyclictest0-21swapper20:59:330
30930252186,208sleep00-21swapper19:09:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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