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2026-08-14 - 18:35
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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 highest latencies:
System rack6slot6 (updated Fri Aug 14, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120819910761253396,54120cyclictest1907-21snmpd10:39:490
120819910753453434,54003cyclictest16042-21runrttasks07:19:310
120819910744253477,53841cyclictest2099-21runrttasks07:29:440
120819910697053423,53455cyclictest0-21swapper09:25:370
120819910674953413,53270cyclictest0-21swapper07:39:070
120819910669153448,53153cyclictest3345-21kworker/0:111:04:160
120819910664653441,53115cyclictest30023-21kworker/0:307:53:510
120819910662553463,53073cyclictest9-21ksoftirqd/010:49:010
120819910661953410,53118cyclictest9-21ksoftirqd/010:53:330
120819910660253433,53102cyclictest0-21swapper08:34:230
120819910654153448,53093cyclictest0-21swapper10:06:190
120819910651353431,53082cyclictest0-21swapper09:43:530
120819910649353412,53081cyclictest0-21swapper08:39:140
120819910647253385,53087cyclictest0-21swapper07:31:440
120819910646253452,53010cyclictest0-21swapper12:02:220
120819910645353446,53007cyclictest0-21swapper08:20:290
120819910644453443,53001cyclictest0-21swapper09:58:070
120819910637253464,52908cyclictest0-21swapper07:11:290
120819910629553469,52826cyclictest0-21swapper08:43:150
120819910621453476,52738cyclictest0-21swapper08:11:060
120819910621253470,52742cyclictest0-21swapper11:49:590
120819910621153447,52764cyclictest0-21swapper11:34:440
120819910620353464,52739cyclictest0-21swapper09:03:410
120819910618953416,52773cyclictest0-21swapper10:14:410
120819910618553403,52782cyclictest0-21swapper07:46:190
120819910616853451,52717cyclictest0-21swapper09:06:420
120819910614153438,52703cyclictest0-21swapper08:55:490
120819910513753039,52096cyclictest0-21swapper12:11:050
120819910508252980,52097cyclictest0-21swapper10:33:470
12081995346126,53435cyclictest0-21swapper09:20:460
12081995345925,53434cyclictest0-21swapper08:19:280
12081995345025,53425cyclictest0-21swapper07:24:420
12081995344825,0cyclictest0-21swapper08:00:330
12081995342926,53403cyclictest0-21swapper12:18:270
12081995329428,0cyclictest0-21swapper11:39:060
12081995328226,0cyclictest0-21swapper09:10:430
12081995321632,0cyclictest0-21swapper09:53:450
1208199531298,53119cyclictest0-21swapper12:34:420
12081995310527,53078cyclictest0-21swapper07:56:220
120819925631093,1371cyclictest21765-21ssh11:19:000
120819925551090,1340cyclictest3626-21ssh09:19:150
120819924811057,1325cyclictest4160-21ssh12:25:490
120819924511038,1288cyclictest15537-21ssh10:22:440
120819924371086,1351cyclictest0-21swapper11:25:220
120819923521091,1162cyclictest16132-21ssh11:56:510
120819923191091,1101cyclictest29334-21diskmemload12:06:340
120819922821097,1094cyclictest9-21ksoftirqd/009:34:300
120819921601070,999cyclictest3237-1kworker/0:1H08:50:070
120819921551011,1019cyclictest20537-21runrttasks08:47:160
120819921401011,1093cyclictest2099-21runrttasks10:40:290
120819920981094,912cyclictest30592-21kworker/u2:112:23:490
120819920941037,1023cyclictest0-21swapper08:08:050
120819920801028,1018cyclictest0-21swapper11:20:400
120819920101039,848cyclictest16111-21ssh09:36:200
120819919671025,853cyclictest0-21swapper10:59:540
120819919451079,774cyclictest0-21swapper08:27:100
12081991934932,966cyclictest0-21swapper12:35:420
120819918951024,778cyclictest3950irq/9-acpi09:49:040
120819918911030,767cyclictest0-21swapper11:12:280
120819917361090,646cyclictest0-21swapper07:42:380
120819917061094,612cyclictest0-21swapper11:50:590
120819917031031,672cyclictest0-21swapper10:00:270
120819916841089,595cyclictest0-21swapper10:17:320
12081991577947,597cyclictest134850irq/9-eth010:25:240
120819915401014,489cyclictest54182sleep011:41:160
120819914401084,356cyclictest0-21swapper11:08:170
11820255385,207sleep00-21swapper07:09:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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