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2026-03-25 - 17:08
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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 Wed Mar 25, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221769910677053485,53194cyclictest9-21ksoftirqd/009:38:250
221769910660353483,53054cyclictest0-21swapper12:00:160
221769910658853399,53099cyclictest9-21ksoftirqd/008:57:130
221769910654053480,52969cyclictest9-21ksoftirqd/011:19:140
221769910651853456,53062cyclictest0-21swapper10:46:350
221769910650953472,53037cyclictest0-21swapper10:30:500
221769910650553423,53082cyclictest0-21swapper08:34:270
221769910649553470,53025cyclictest0-21swapper09:15:080
221769910649553464,53031cyclictest0-21swapper11:29:270
221769910649453464,53030cyclictest0-21swapper08:25:040
221769910648853421,53067cyclictest0-21swapper12:15:300
221769910648753467,53020cyclictest0-21swapper08:54:020
221769910648653417,53069cyclictest0-21swapper12:14:000
221769910647453459,53015cyclictest0-21swapper09:29:320
221769910643353435,52998cyclictest0-21swapper09:44:570
221769910642753430,52997cyclictest0-21swapper11:53:440
221769910642453470,52890cyclictest9-21ksoftirqd/007:58:560
221769910632453487,52746cyclictest0-21swapper08:41:290
221769910632153472,52738cyclictest0-21swapper07:27:370
221769910631153403,52818cyclictest9-21ksoftirqd/008:48:310
221769910627653378,52809cyclictest134850irq/9-eth009:22:200
221769910626653418,52757cyclictest0-21swapper10:39:230
221769910621553469,52746cyclictest0-21swapper11:09:010
221769910621253433,52779cyclictest0-21swapper07:48:430
221769910618153411,52770cyclictest0-21swapper07:37:300
221769910617953453,52726cyclictest0-21swapper07:52:450
221769910616153452,52709cyclictest0-21swapper08:02:270
221769910616153446,52715cyclictest0-21swapper08:36:470
221769910613853443,52695cyclictest0-21swapper08:11:500
221769910599752908,53087cyclictest0-21swapper11:34:080
221769910558152956,52623cyclictest12108-21ssh12:29:440
221769910546053185,52272cyclictest0-21swapper12:33:150
221769910514553042,52101cyclictest0-21swapper11:01:390
221769910512852991,52137cyclictest0-21swapper11:23:050
221769910510853014,52092cyclictest0-21swapper10:09:240
22176995383153393,438cyclictest0-21swapper11:12:420
22176995364336,140cyclictest0-21swapper09:14:380
22176995355753406,151cyclictest0-21swapper08:18:120
22176995345525,0cyclictest0-21swapper09:02:550
22176995339737,0cyclictest0-21swapper07:10:020
22176995319127,0cyclictest0-21swapper09:52:290
22176995283226,52806cyclictest0-21swapper07:41:110
221769923961041,1350cyclictest2099-21runrttasks11:37:090
221769922751068,1157cyclictest2099-21runrttasks08:23:530
221769921571036,998cyclictest0-21swapper10:56:470
221769921011016,1064cyclictest0-21swapper09:56:100
221769920751028,1013cyclictest0-21swapper07:31:480
221769920591039,980cyclictest24269-21munin-node07:15:140
22176992022983,1005cyclictest0-21swapper11:40:300
221769920091066,850cyclictest0-21swapper10:42:230
221769919591042,791cyclictest1907-21snmpd10:04:220
22176991942955,964cyclictest0-21swapper12:08:180
22176991936963,959cyclictest0-21swapper12:20:010
22176991930926,990cyclictest0-21swapper11:59:150
221769919241054,770cyclictest17470-21ssh12:36:460
221769919131048,773cyclictest0-21swapper10:51:560
221769918991080,723cyclictest0-21swapper07:22:160
22176991898965,899cyclictest0-21swapper09:46:470
221769918591071,788cyclictest0-21swapper09:07:360
22176991632959,649cyclictest23326-21ssh10:20:470
221769915971085,512cyclictest0-21swapper10:25:080
221769915641107,366cyclictest0-21swapper10:15:050
221769915581106,361cyclictest0-21swapper11:49:530
221769915441057,487cyclictest0-21swapper10:11:550
22176991487888,582cyclictest23537-21ssh09:34:140
221769914711064,407cyclictest0-21swapper08:05:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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