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2025-12-09 - 15:24
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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 Tue Dec 09, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
238989910717753425,53752cyclictest0-21swapper09:27:520
238989910677853453,53325cyclictest0-21swapper09:56:000
238989910655453446,53108cyclictest0-21swapper08:12:200
238989910652353478,53045cyclictest0-21swapper10:10:550
238989910650153470,53031cyclictest0-21swapper12:20:520
238989910649653378,53054cyclictest3950irq/9-acpi08:24:340
238989910648653465,53021cyclictest0-21swapper10:48:350
238989910644853440,53008cyclictest0-21swapper09:42:470
238989910643453440,52994cyclictest0-21swapper09:17:590
238989910637453462,52847cyclictest9-21ksoftirqd/007:50:540
238989910633853407,52839cyclictest0-21swapper07:58:470
238989910626753397,52755cyclictest0-21swapper08:01:570
238989910620853417,52746cyclictest0-21swapper07:42:520
238989910620453469,52735cyclictest0-21swapper10:36:320
238989910618653457,52729cyclictest0-21swapper12:07:280
238989910617653409,52767cyclictest0-21swapper11:00:090
238989910616853416,52752cyclictest0-21swapper08:08:290
238989910616753406,52761cyclictest0-21swapper11:53:040
238989910613853391,52747cyclictest0-21swapper11:25:060
238989910613653436,52700cyclictest0-21swapper07:22:260
238989910612253425,52697cyclictest0-21swapper08:51:020
238989910610853417,52691cyclictest0-21swapper08:44:000
238989910569352880,52811cyclictest12770-21ssh12:10:490
238989910556952909,52657cyclictest5810-21sh12:01:260
238989910535253072,52277cyclictest6333-21ssh11:18:340
238989910526352967,52294cyclictest8623-21ssh11:20:550
238989910506352966,52095cyclictest22859-21ssh10:56:180
23898995337427,53347cyclictest0-21swapper09:33:240
23898995322825,53203cyclictest0-21swapper12:39:480
23898995310824,0cyclictest0-21swapper10:16:160
23898995305824,53034cyclictest0-21swapper11:35:590
238989925121102,1286cyclictest8792-21diskmemload10:07:340
238989925071092,1315cyclictest20303-21ssh10:53:270
238989923621054,1210cyclictest1183-21automount07:32:290
238989922711076,1100cyclictest0-21swapper08:59:140
238989922521068,1058cyclictest5725-21ssh09:49:480
238989921781006,1151cyclictest2103-21runrttasks09:22:000
238989921681062,1013cyclictest9-21ksoftirqd/008:25:540
238989920821084,898cyclictest25790-21ssh12:29:550
23898992037998,1001cyclictest8792-21diskmemload12:18:110
238989920281024,938cyclictest133750irq/9-eth010:01:020
238989920271040,895cyclictest3950irq/9-acpi11:08:210
238989919961022,854cyclictest0-21swapper08:38:180
238989919921041,827cyclictest11065-21ssh09:12:180
238989919891092,897cyclictest0-21swapper11:33:080
23898991942952,953cyclictest9413-21ssh09:54:500
23898991927945,946cyclictest28145-21ssh11:48:230
23898991921926,981cyclictest0-21swapper11:43:310
238989918981032,772cyclictest0-21swapper07:14:340
23898991833997,799cyclictest12678-21ssh10:42:540
23898991824940,850cyclictest0-21swapper09:37:150
238989917881100,622cyclictest3950irq/9-acpi11:11:320
238989917741039,727cyclictest0-21swapper07:37:500
238989917151005,618cyclictest9-21ksoftirqd/008:30:260
238989916731015,593cyclictest11-21rcu_preempt08:16:320
238989916721022,613cyclictest3680-21ssh11:59:260
238989916651089,576cyclictest0-21swapper12:34:260
238989916631088,575cyclictest0-21swapper07:29:380
238989916591086,573cyclictest0-21swapper08:49:210
238989916431078,565cyclictest0-21swapper10:25:590
238989916061059,547cyclictest0-21swapper09:04:460
238989915961092,437cyclictest0-21swapper07:47:430
238989915931053,540cyclictest0-21swapper07:18:150
238989915821015,567cyclictest0-21swapper10:24:080
238989915731081,429cyclictest9-21ksoftirqd/010:34:510
238989914621094,368cyclictest0-21swapper09:09:470
23772254580,206sleep00-21swapper07:10:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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