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2026-01-07 - 17:15
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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 rackaslot8.osadl.org (updated Wed Jan 07, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
107112276245,20sleep10-21swapper/107:07:231
108332268238,20sleep20-21swapper/207:08:412
107932258227,20sleep00-21swapper/007:08:140
107592257223,22sleep30-21swapper/307:07:543
78452630,1sleep20-21swapper/211:56:022
209302610,0sleep00-21swapper/008:40:200
156542570,0sleep20-21swapper/208:30:122
204452560,0sleep10-21swapper/111:09:081
10122560,0sleep20-21swapper/212:29:342
44402550,0sleep30-21swapper/310:23:413
144772550,0sleep10-21swapper/112:18:401
133482540,0sleep30-21swapper/312:35:523
25532530,0sleep00-21swapper/010:59:060
187662520,0sleep00-21swapper/010:31:160
281942190,0sleep30-21swapper/310:36:383
6082170,0sleep30-21swapper/307:55:173
6082170,0sleep30-21swapper/307:55:173
306442170,1sleep10-21swapper/112:27:361
200372160,0sleep10-21swapper/109:55:361
86742150,0sleep10-21swapper/111:56:371
304082140,0sleep10-21swapper/110:38:141
113902140,0sleep00-21swapper/012:16:260
1103999144,1cyclictest28-21ksoftirqd/209:50:022
252232130,0sleep20-21swapper/212:05:472
25972120,0sleep10-21swapper/108:00:171
1104299101,7cyclictest6744-21ssh09:30:213
1104299101,5cyclictest1257-21ssh09:10:133
1104299101,3cyclictest31866-21ssh11:15:143
1104299100,7cyclictest18797-21rm11:07:593
1104299100,6cyclictest31148-21ssh12:10:003
1103999102,4cyclictest414-21diskmemload11:16:402
110429998,1cyclictest34-21ksoftirqd/312:20:023
110429995,3cyclictest8643-21apt-get09:50:023
110429991,7cyclictest0-21swapper/307:30:133
110429991,6cyclictest26459-21ssh10:54:253
110429991,5cyclictest7888-21ssh10:43:533
110429991,5cyclictest23173-21ssh10:34:233
110429991,5cyclictest10276-21ssh09:15:123
110429991,4cyclictest28778-21cat09:00:123
110429991,3cyclictest414-21diskmemload11:42:123
110429991,1cyclictest34-21ksoftirqd/311:55:013
110429990,7cyclictest0-21swapper/312:32:483
110429990,6cyclictest31249-21ssh09:44:513
110429990,6cyclictest28245-21seq09:25:083
110429990,6cyclictest25287-21/usr/sbin/munin11:30:143
110429990,6cyclictest10115-21ssh11:03:093
110399992,5cyclictest28-21ksoftirqd/210:27:542
110399991,5cyclictest28-21ksoftirqd/211:06:302
110399991,5cyclictest28-21ksoftirqd/209:15:202
110399991,5cyclictest12209-21kworker/2:011:54:282
110399990,6cyclictest28-21ksoftirqd/210:57:552
110399990,6cyclictest28-21ksoftirqd/210:13:292
110399990,5cyclictest0-21swapper/211:40:582
110429985,2cyclictest28381-21ssh11:50:123
110429984,3cyclictest8491-21diskstats12:15:123
110429983,3cyclictest275-21systemd-journal08:45:013
110429982,1cyclictest414-21diskmemload09:49:243
110429982,1cyclictest26275-21fw_packets12:25:143
110429981,3cyclictest5077-21sed10:05:233
110429981,3cyclictest23748-21sed11:10:203
110429981,3cyclictest23613-21sh09:58:073
110429981,3cyclictest21655-21rm11:45:363
110429981,3cyclictest18148-21cat08:35:153
110429981,3cyclictest16156-21grep08:30:163
110429981,3cyclictest15544-21cat09:35:193
110429981,2cyclictest24958-21rm10:16:383
110429980,5cyclictest9771-21ssh10:26:093
110429980,5cyclictest5591-21ssh12:13:363
110429980,5cyclictest4413-21ssh11:35:583
110429980,5cyclictest20357-21ssh11:26:503
110429980,5cyclictest19136-21ssh09:20:053
110429980,5cyclictest17921-21ssh10:12:593
110429980,5cyclictest16879-21ssh12:01:083
110429980,5cyclictest13837-21ssh10:46:483
110429980,5cyclictest13047-21ssh11:22:573
110429980,4cyclictest27713-21cat10:00:163
110399982,4cyclictest414-21diskmemload11:10:442
110399982,4cyclictest28-21ksoftirqd/212:02:552
110399982,4cyclictest28-21ksoftirqd/210:46:312
110399982,4cyclictest28-21ksoftirqd/210:35:422
110399982,4cyclictest28-21ksoftirqd/210:33:552
110399982,4cyclictest28-21ksoftirqd/210:05:052
110399982,4cyclictest28-21ksoftirqd/209:46:252
110399982,4cyclictest28-21ksoftirqd/209:35:112
110399982,4cyclictest28-21ksoftirqd/209:20:292
110399982,4cyclictest28-21ksoftirqd/209:11:422
110399982,3cyclictest28-21ksoftirqd/212:30:162
110399982,3cyclictest28-21ksoftirqd/211:38:302
110399981,5cyclictest28-21ksoftirqd/210:01:352
110399981,5cyclictest0-21swapper/212:35:212
110399981,5cyclictest0-21swapper/212:20:422
110399981,5cyclictest0-21swapper/211:45:152
110399981,5cyclictest0-21swapper/210:40:152
110399981,4cyclictest28-21ksoftirqd/212:15:112
110399981,4cyclictest28-21ksoftirqd/211:30:422
110399981,4cyclictest28-21ksoftirqd/211:20:312
110399981,4cyclictest28-21ksoftirqd/210:52:162
110399981,4cyclictest28-21ksoftirqd/209:55:482
110399981,4cyclictest28-21ksoftirqd/209:44:352
110399981,4cyclictest0-21swapper/211:25:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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