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2026-03-28 - 19:51
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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 376 highest latencies:
System rack6slot6 (updated Sat Mar 28, 2026 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
80459910701653402,53521cyclictest0-21swapper11:52:480
80459910699153424,53504cyclictest3950irq/9-acpi11:30:520
80459910697053424,53455cyclictest0-21swapper10:47:390
80459910687153472,53277cyclictest2272-21munin-node08:27:090
80459910685853342,53516cyclictest0-21swapper10:56:220
80459910681953436,53383cyclictest9-21ksoftirqd/011:05:540
80459910670853386,53257cyclictest9-21ksoftirqd/011:49:070
80459910669153472,53219cyclictest0-21swapper10:37:560
80459910667053432,53238cyclictest0-21swapper10:04:470
80459910666153445,53193cyclictest13082-21ssh10:26:430
80459910657253469,53039cyclictest9-21ksoftirqd/007:29:220
80459910656453383,53088cyclictest0-21swapper10:18:110
80459910650653429,53077cyclictest0-21swapper08:18:060
80459910648353400,53019cyclictest9-21ksoftirqd/009:57:350
80459910647653455,53021cyclictest0-21swapper10:50:100
80459910646453454,53010cyclictest0-21swapper09:34:180
80459910646353410,53053cyclictest0-21swapper11:42:050
80459910646253408,53054cyclictest0-21swapper09:19:440
80459910645153404,53047cyclictest0-21swapper09:27:460
80459910644453399,53045cyclictest0-21swapper07:53:290
80459910640953424,52985cyclictest0-21swapper12:33:300
80459910639753416,52981cyclictest0-21swapper12:25:470
80459910638153473,52908cyclictest0-21swapper11:20:290
80459910637553475,52900cyclictest0-21swapper09:04:500
80459910637253450,52922cyclictest0-21swapper08:09:540
80459910635353464,52889cyclictest0-21swapper07:30:420
80459910633953462,52877cyclictest0-21swapper08:38:220
80459910633253450,52882cyclictest0-21swapper08:54:370
80459910632053449,52806cyclictest0-21swapper12:20:460
80459910631353381,52869cyclictest9-21ksoftirqd/008:01:110
80459910630853379,52865cyclictest134850irq/9-eth011:03:440
80459910629453436,52858cyclictest0-21swapper12:00:400
80459910625853388,52805cyclictest0-21swapper07:59:210
80459910622053473,52747cyclictest0-21swapper08:59:380
80459910617853451,52727cyclictest0-21swapper09:52:030
80459910617153408,52763cyclictest0-21swapper12:38:310
80459910613553429,52706cyclictest0-21swapper08:11:440
80459910613153433,52698cyclictest0-21swapper07:13:380
80459910612253420,52702cyclictest0-21swapper08:44:140
80459910531353010,52301cyclictest19245-21ssh09:48:320
8045995384953384,465cyclictest0-21swapper10:13:490
8045995374653382,243cyclictest16174-21ssh10:31:040
8045995369824,99cyclictest9-21ksoftirqd/009:21:240
8045995345853416,42cyclictest0-21swapper07:48:480
8045995345424,0cyclictest0-21swapper07:35:040
8045995310827,53081cyclictest0-21swapper07:22:500
80459946492696,1950cyclictest2679-21devkit-power-da11:13:170
80459927001067,1507cyclictest27606-21ssh09:12:520
80459925061100,1307cyclictest2065-21crond09:40:000
80459924601092,1244cyclictest9409-21ssh10:21:010
80459922881042,1151cyclictest104292sleep008:33:200
80459922421026,1183cyclictest2099-21runrttasks10:07:070
80459922321093,1072cyclictest13862-21kworker/u2:112:05:420
80459921441043,1067cyclictest0-21swapper11:38:440
80459920691026,1009cyclictest0-21swapper12:17:250
8045992035998,1017cyclictest0-21swapper08:23:280
8045992024987,1003cyclictest0-21swapper11:18:280
8045991995969,1026cyclictest0-21swapper11:56:290
80459919911059,808cyclictest14741-21ssh09:41:000
80459919581088,777cyclictest950ksoftirqd/010:42:080
80459919561017,845cyclictest0-21swapper09:07:500
80459919071045,862cyclictest0-21swapper07:17:490
8045991662941,687cyclictest9-21ksoftirqd/012:11:030
80459916091024,565cyclictest3950irq/9-acpi11:28:310
80459915891081,444cyclictest8044-21cyclictest08:46:140
80459915781086,492cyclictest0-21swapper07:41:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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