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2026-04-21 - 06:05
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot0.osadl.org (updated Tue Apr 21, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2010521240,0sleep10-21swapper/122:37:301
814821220,3sleep62001399cyclictest21:48:146
1733321210,0sleep20-21swapper/200:14:522
122942950,1sleep40-21swapper/423:49:224
122942950,1sleep40-21swapper/423:49:214
45502890,0sleep40-21swapper/421:46:204
122842860,4sleep52000599cyclictest21:43:245
31982830,0sleep00-21swapper/023:20:160
285042810,1sleep128456-21sshd23:45:111
285042810,1sleep128456-21sshd23:45:101
6632790,0sleep20-21swapper/221:54:362
321272790,0sleep50-21swapper/521:46:055
215222790,0sleep00-21swapper/022:51:000
160302790,3sleep280750irq/25-eno1-rx-23:00:472
111432770,0sleep60-21swapper/622:18:356
53282760,0sleep35332-21bash21:38:013
116782760,0sleep00-21swapper/023:54:220
89432750,0sleep70-21swapper/723:37:237
84512750,0sleep30-21swapper/323:45:453
84512750,0sleep30-21swapper/323:45:443
230782750,1sleep124-21ksoftirqd/121:42:161
213702750,0sleep20-21swapper/223:31:172
177652750,1sleep4491rcuc/422:49:114
101572750,0sleep20-21swapper/222:40:192
54062740,0sleep10-21swapper/121:56:261
286672740,0sleep30-21swapper/300:01:553
191292740,0sleep00-21swapper/000:14:590
184032740,0sleep00-21swapper/000:31:420
152352740,1sleep215233-21sshd22:54:052
229902730,0sleep00-21swapper/021:28:520
182202730,0sleep70-21swapper/722:27:197
182202730,0sleep70-21swapper/722:27:187
169052730,0sleep10-21swapper/123:19:221
132612730,1sleep413259-21bash22:55:364
266942720,0sleep10-21swapper/122:17:421
23392720,1sleep20-21swapper/223:53:532
87752710,1sleep38757-21sshd22:08:233
40362710,1sleep74037-21kworker/u16:122:51:467
323132710,1sleep60-21swapper/623:13:256
318712710,1sleep031866-21sshd21:52:480
251972710,0sleep10-21swapper/122:07:321
242672710,0sleep10-21swapper/122:29:211
242672710,0sleep10-21swapper/122:29:201
37382700,0sleep50-21swapper/521:12:475
22492700,0sleep50-21swapper/522:26:285
22492700,0sleep50-21swapper/522:26:275
181382700,1sleep318135-21sshd21:20:133
16282700,0sleep3401rcuc/323:28:373
155402700,0sleep20-21swapper/223:25:562
63292690,0sleep30-21swapper/323:59:073
63292690,0sleep30-21swapper/323:59:063
177142690,0sleep50-21swapper/500:04:465
164952690,0sleep4491rcuc/421:16:474
164952690,0sleep4491rcuc/421:16:464
74632680,0sleep00-21swapper/022:20:060
74632680,0sleep00-21swapper/022:20:050
35772680,0sleep63579-21kworker/u16:022:29:586
35772680,0sleep63579-21kworker/u16:022:29:576
30232680,0sleep30-21swapper/321:12:443
230742680,0sleep70-21swapper/723:02:527
13572680,4sleep31999299cyclictest23:43:443
13572680,4sleep31999299cyclictest23:43:433
287712670,0sleep10-21swapper/123:14:561
281072670,0sleep70-21swapper/721:44:157
85802640,1sleep18567-21bash21:29:491
37142640,1sleep451-21ksoftirqd/421:41:144
312622640,0sleep30-21swapper/300:23:593
220502640,2sleep61146-21nfsd00:01:356
133842630,1sleep560-21ksoftirqd/500:14:405
113162620,3sleep62001399cyclictest23:07:176
1971025949,6sleep00-21swapper/019:09:280
1771825949,6sleep50-21swapper/519:05:095
1972625848,6sleep70-21swapper/719:09:437
164342570,1sleep778-21ksoftirqd/722:18:527
1945325231,6sleep40-21swapper/419:06:134
1941725229,7sleep60-21swapper/619:05:506
1948624826,7sleep10-21swapper/119:06:411
1965624331,7sleep20-21swapper/219:08:502
188492430,0sleep30-21swapper/300:28:243
1939624029,7sleep30-21swapper/319:05:313
63452270,1sleep36335-21cp23:12:033
152912250,0sleep50-21swapper/521:33:305
294432240,1sleep7761rcuc/721:39:177
231412240,1sleep4501ktimersoftd/422:19:144
198652240,0sleep30-21swapper/323:21:083
111762230,0sleep2321ktimersoftd/222:05:092
325702220,0sleep20-21swapper/221:24:222
180532220,3sleep52000599cyclictest23:04:185
147012220,2sleep3658-21polkitd23:17:313
1997699210,20cyclictest0-21swapper/020:51:590
169452210,1sleep20-21swapper/223:36:062
81082200,0sleep78106-21bash22:10:037
327042200,2sleep60-21swapper/621:32:436
308022200,1sleep130800-21grepconf.sh00:05:221
27282200,1sleep30-21swapper/300:37:383
170562200,0sleep30-21swapper/300:08:053
169332200,0sleep70-21swapper/721:53:457
72752190,0sleep30-21swapper/300:12:373
63922190,0sleep40-21swapper/422:04:554
61962190,0sleep10-21swapper/122:43:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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