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2026-04-20 - 07:08
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot0.osadl.org (updated Mon Apr 20, 2026 00:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
222262890,1sleep30-21swapper/323:06:503
118082870,1sleep7771ktimersoftd/722:06:037
118082870,1sleep7771ktimersoftd/722:06:027
104592870,1sleep310455-21sshd21:12:523
248302850,0sleep40-21swapper/423:32:474
248302850,0sleep40-21swapper/423:32:464
9482830,4sleep72619599cyclictest23:58:557
88262830,4sleep42617899cyclictest21:21:194
19352830,0sleep50-21swapper/521:55:185
144342820,1sleep714425-21bash22:28:307
89732810,0sleep40-21swapper/422:04:154
89732810,0sleep40-21swapper/422:04:144
138412810,1sleep6671rcuc/621:36:596
114812810,1sleep611466-21sshd00:23:226
153502800,1sleep20-21swapper/222:06:142
153502800,1sleep20-21swapper/222:06:132
127082800,0sleep50-21swapper/523:13:165
171812790,0sleep50-21swapper/522:47:365
127242790,0sleep20-21swapper/223:37:182
297722780,1sleep7761rcuc/700:17:307
287852780,0sleep00-21swapper/022:17:100
196932780,1sleep2321ktimersoftd/221:39:042
263972770,1sleep00-21swapper/021:54:570
263972770,1sleep00-21swapper/021:54:570
256362770,1sleep00-21swapper/022:00:030
256362770,1sleep00-21swapper/022:00:020
126212770,1sleep512622-21systemd-cgroups21:28:255
172112760,0sleep40-21swapper/421:56:054
166982760,1sleep516654-21sshd22:57:545
134932760,0sleep10-21swapper/121:49:051
124862760,0sleep40-21swapper/421:18:074
197962750,1sleep00-21swapper/021:44:150
186632750,1sleep50-21swapper/521:33:545
130512750,0sleep00-21swapper/022:26:390
325672740,0sleep00-21swapper/022:50:110
22692740,0sleep00-21swapper/000:22:510
34102730,0sleep70-21swapper/722:17:327
244112730,1sleep5581rcuc/522:03:205
244112730,1sleep5581rcuc/522:03:195
159152720,0sleep00-21swapper/023:03:010
61312710,0sleep20-21swapper/222:02:202
61312710,0sleep20-21swapper/222:02:202
260442710,0sleep70-21swapper/723:24:177
260442710,0sleep70-21swapper/723:24:167
173412710,1sleep417335-21bash00:10:064
70482700,1sleep77042-21sshd23:45:337
60122700,1sleep71014-21runrttasks00:29:577
290232700,1sleep081ktimersoftd/021:36:050
317242680,1sleep7726-21gdbus21:44:557
222642680,1sleep778-21ksoftirqd/722:40:577
257012670,0sleep70-21swapper/700:08:497
132962670,0sleep10-21swapper/123:16:401
77672650,0sleep30-21swapper/322:50:313
129932650,0sleep30-21swapper/323:37:183
8882580,0sleep10-21swapper/122:08:531
8882580,0sleep10-21swapper/122:08:521
298582580,3sleep32617099cyclictest21:39:373
286542580,3sleep12615999cyclictest22:46:271
141162570,4sleep12615999cyclictest00:14:591
2569725646,6sleep00-21swapper/019:07:120
2590525533,7sleep60-21swapper/619:09:506
2568325343,6sleep40-21swapper/419:07:004
2387825343,6sleep10-21swapper/119:05:041
2566225141,6sleep30-21swapper/319:06:433
2590124433,7sleep20-21swapper/219:09:472
2569524433,7sleep70-21swapper/719:07:127
2560924434,6sleep50-21swapper/519:06:055
92672250,1sleep30-21swapper/323:55:543
2616499240,1cyclictest0-21swapper/222:23:172
2615399240,2cyclictest0-21swapper/000:10:240
250902240,1sleep6671rcuc/621:58:166
228042240,1sleep122802-21sshd22:40:591
102692240,1sleep5581rcuc/522:38:395
81522230,0sleep00-21swapper/021:59:050
2615399230,1cyclictest0-21swapper/023:48:510
2615399230,1cyclictest0-21swapper/000:06:450
180692230,1sleep30-21swapper/322:59:443
61872220,1sleep30-21swapper/300:00:513
26153992217,4cyclictest26779-21sshd21:34:210
2615399220,1cyclictest0-21swapper/023:51:160
2615399220,1cyclictest0-21swapper/020:15:090
238642220,0sleep2311rcuc/223:34:302
238642220,0sleep2311rcuc/223:34:302
205842220,0sleep6671rcuc/623:01:326
134012220,1sleep1681-21dbus-daemon23:44:131
10372220,1sleep20-21swapper/200:31:202
10372220,1sleep20-21swapper/200:31:202
92062210,0sleep00-21swapper/023:06:060
56722210,1sleep70-21swapper/700:36:467
56722210,1sleep70-21swapper/700:36:457
318442210,1sleep531848-21sshd22:25:565
300362210,1sleep20-21swapper/200:24:232
263452210,1sleep3411ktimersoftd/300:30:573
263452210,1sleep3411ktimersoftd/300:30:563
2615399210,2cyclictest0-21swapper/023:44:140
2615399210,1cyclictest0-21swapper/023:31:270
2615399210,1cyclictest0-21swapper/023:31:260
204662210,0sleep70-21swapper/723:25:377
204662210,0sleep70-21swapper/723:25:367
18632210,0sleep10-21swapper/123:31:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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