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2026-05-04 - 09:05
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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 Mon May 04, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2266321050,0sleep30-21swapper/323:17:343
103812900,0sleep00-21swapper/000:31:200
103812900,0sleep00-21swapper/000:31:200
175242880,1sleep717519-21sshd23:34:367
97312870,1sleep4491rcuc/422:14:514
162172860,1sleep116196-21sshd21:45:461
97302850,2sleep20-21swapper/222:35:252
9772830,0sleep20-21swapper/200:04:522
235402830,1sleep70-21swapper/700:25:107
52322820,0sleep60-21swapper/600:03:216
265322820,1sleep30-21swapper/322:38:063
149892820,1sleep414977-21sshd22:15:074
256102810,1sleep70-21swapper/722:03:327
256102810,1sleep70-21swapper/722:03:317
36182800,1sleep20-21swapper/222:33:242
262982800,0sleep626292-21bash23:48:546
170352800,0sleep40-21swapper/423:39:474
101292800,0sleep50-21swapper/523:39:225
283272790,1sleep728328-21grep00:01:047
264742790,1sleep2681-21dbus-daemon23:14:192
163452790,0sleep70-21swapper/700:23:007
12032790,0sleep40-21swapper/400:32:364
12032790,0sleep40-21swapper/400:32:354
293892770,1sleep40-21swapper/422:43:284
73692760,1sleep4491rcuc/423:32:174
39602760,1sleep10-21swapper/122:14:321
271742760,1sleep70-21swapper/722:57:027
252392750,0sleep30-21swapper/322:12:093
251772750,1sleep5591ktimersoftd/521:51:285
140532750,0sleep70-21swapper/723:17:057
256022740,1sleep3411ktimersoftd/300:25:143
249512740,1sleep50-21swapper/523:40:125
18202740,1sleep21-21systemd21:19:102
236092730,1sleep223606-21sshd23:02:012
155472730,0sleep20-21swapper/223:58:442
154182730,0sleep50-21swapper/523:18:555
36872720,0sleep00-21swapper/022:21:200
291992720,1sleep329181-21sshd23:35:133
243982720,0sleep00-21swapper/023:48:480
118212720,0sleep50-21swapper/500:31:255
118212720,0sleep50-21swapper/500:31:255
49402710,1sleep30-21swapper/300:24:103
25612710,1sleep4501ktimersoftd/422:02:174
25612710,1sleep4501ktimersoftd/422:02:174
74742700,2sleep70-21swapper/700:15:327
250822700,0sleep10-21swapper/121:29:031
206472700,0sleep40-21swapper/423:22:394
206472700,0sleep40-21swapper/423:22:384
272152690,1sleep00-21swapper/022:17:270
140262690,0sleep70-21swapper/700:12:267
102162690,0sleep00-21swapper/021:21:170
79782670,4sleep42900999cyclictest23:11:334
185712670,0sleep70-21swapper/721:32:067
70672660,0sleep70-21swapper/722:16:227
36402630,1sleep03634-21sshd21:52:030
2870526352,7sleep60-21swapper/619:09:126
2839926049,6sleep10-21swapper/119:05:221
286252590,0sleep60-21swapper/621:24:046
2858525949,6sleep70-21swapper/719:07:457
2858325949,6sleep50-21swapper/519:07:435
176522590,0sleep40-21swapper/422:22:044
2857825848,6sleep00-21swapper/019:07:380
127942550,0sleep412745-21sshd23:44:434
2877424636,6sleep30-21swapper/319:09:583
2853524534,7sleep40-21swapper/419:07:024
141782450,0sleep50-21swapper/522:34:005
2872924130,7sleep20-21swapper/219:09:332
177662310,1sleep20-21swapper/200:33:302
177662310,1sleep20-21swapper/200:33:302
187162290,0sleep40-21swapper/400:26:344
292142270,1sleep1681-21dbus-daemon21:39:371
148452250,1sleep20-21swapper/200:17:432
258592240,0sleep025858-21grep22:31:060
239922240,3sleep123985-21sshd23:38:231
41562230,1sleep74158-21grepconf.sh23:42:297
155742230,1sleep70-21swapper/722:37:307
108492230,1sleep410852-21bash21:57:364
108492230,1sleep410852-21bash21:57:354
2899799222,19cyclictest29498-21grep23:50:442
2899799210,20cyclictest18776-21sshd21:33:532
2899799210,1cyclictest0-21swapper/223:45:412
166072210,1sleep70-21swapper/723:22:267
166072210,1sleep70-21swapper/723:22:257
2899799200,7cyclictest31488-21sshd21:20:412
278232200,1sleep727801-21sshd22:43:227
38062190,0sleep50-21swapper/521:22:425
299772190,0sleep00-21swapper/023:26:360
299772190,0sleep00-21swapper/023:26:360
292872190,0sleep40-21swapper/400:37:334
29019991917,1cyclictest14072-21kworker/6:223:44:396
2899799193,13cyclictest0-21swapper/222:42:322
28997991916,2cyclictest6804-21gdbus21:53:172
2899799190,12cyclictest0-21swapper/220:47:402
82992180,1sleep38302-21systemd-cgroups00:00:053
5442180,0sleep40-21swapper/423:05:554
308312180,0sleep00-21swapper/022:03:490
308312180,0sleep00-21swapper/022:03:480
133582180,0sleep30-21swapper/322:47:443
5562170,1sleep1546-21bash21:41:301
50872170,0sleep40-21swapper/422:50:424
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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