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2026-09-07 - 08:39
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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 rackeslot8.osadl.org (updated Mon Sep 07, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
194892799231,18cyclictest2431837-21taskset00:36:383
194892799231,17cyclictest2189438-21taskset22:01:293
194892799230,17cyclictest2079419-21taskset20:50:013
21288622221,5sleep02128979-21ssh21:25:160
21288622221,5sleep02128979-21ssh21:25:150
194892799221,18cyclictest2157915-21taskset21:40:333
194892799221,17cyclictest2228256-21taskset22:25:523
194892799221,17cyclictest2136024-21taskset21:29:593
194892799221,17cyclictest2136024-21taskset21:29:583
1948927992118,1cyclictest0-21swapper/322:20:213
194892799211,16cyclictest2424369-21taskset00:32:503
194892799211,16cyclictest2401293-21taskset00:19:233
194892799211,16cyclictest2401293-21taskset00:19:223
194892799211,16cyclictest2392323-21taskset00:11:043
194892799211,16cyclictest2284273-21taskset23:04:413
194892799211,16cyclictest2079201-21turbostat20:50:013
194892799211,16cyclictest2001147-21taskset19:45:193
194892799211,16cyclictest1976395-21taskset19:26:303
194892799208,3cyclictest22761282sleep322:59:003
194892799202,14cyclictest2196287-21taskset22:05:233
194892799201,16cyclictest2416254-21taskset00:27:073
194892799201,16cyclictest2291475-21taskset23:07:573
194892799201,15cyclictest2374818-21taskset00:00:213
194892799201,15cyclictest2213727-21taskset22:19:193
194892799201,15cyclictest2204015-21taskset22:10:233
194892799201,15cyclictest2182215-21taskset21:58:303
194892799201,15cyclictest2150164-21taskset21:35:523
194892799201,15cyclictest2091751-21taskset20:57:403
194892799201,15cyclictest2008661-21turbostat19:55:003
194892799201,15cyclictest1989456-21sleep19:40:013
194892799201,15cyclictest1989456-21sleep19:40:003
194892799201,14cyclictest2253546-21chrt22:45:123
194892799191,15cyclictest2361363-21taskset23:51:513
194892799191,15cyclictest2104524-21taskset21:06:423
194892799191,14cyclictest2409052-21taskset00:23:523
194892799191,14cyclictest2297703-21taskset23:10:233
194892799191,14cyclictest2173481-21taskset21:50:513
194892799191,14cyclictest2165998-21taskset21:46:393
194892799191,14cyclictest2112100-21taskset21:13:343
194892799191,14cyclictest2014743-21taskset19:56:373
194892799191,14cyclictest1970005-21taskset19:21:103
21901472180,15sleep22190151-21ssh22:03:302
194892799181,14cyclictest2322576-21taskset23:27:383
194892799181,14cyclictest2119124-21taskset21:16:243
194892799181,14cyclictest2046949-21taskset20:22:283
194892799181,14cyclictest0-21swapper/323:40:153
194892799181,13cyclictest2338424-21taskset23:38:203
194892799181,13cyclictest2330918-21taskset23:34:123
194892799181,13cyclictest2066215-21taskset20:38:423
194892799181,13cyclictest2059739-21taskset20:32:543
194892799181,13cyclictest2040671-21sleep20:20:003
194892799181,13cyclictest2027816-21taskset20:09:403
194892799181,13cyclictest1989701-21taskset19:40:093
194892799181,13cyclictest0-21swapper/322:50:163
194892799181,12cyclictest2305591-21chrt23:15:233
194892799180,9cyclictest2369312-21taskset23:57:173
194892799180,14cyclictest2354696-21turbostat23:50:013
194892799180,14cyclictest2072640-21taskset20:43:283
20411352171,9sleep12040697-21sendmail-msp20:20:171
20375552170,8sleep02039418-21kthreadcore20:15:200
194892799171,13cyclictest2142336-21taskset21:30:463
194892799171,13cyclictest1963671-21taskset19:17:483
194892799171,13cyclictest0-21swapper/322:40:143
194892799171,13cyclictest0-21swapper/321:20:113
194892799171,13cyclictest0-21swapper/320:25:123
194892799171,13cyclictest0-21swapper/320:00:153
194892799171,12cyclictest2378470-21chrt00:05:153
194892799171,12cyclictest1949325-21chrt19:10:153
194892799171,12cyclictest0-21swapper/322:35:143
194892799171,12cyclictest0-21swapper/322:30:133
194892799171,12cyclictest0-21swapper/320:10:143
194892799161,12cyclictest0-21swapper/323:20:133
194892799161,12cyclictest0-21swapper/321:00:133
194892799161,11cyclictest1976931-21taskset19:30:083
19487512151,4sleep11948753-21sshd-auth19:09:091
24150582141,10sleep22415104-21ntpq00:25:232
24094412140,10sleep22409446-21ssh00:24:562
22772902140,4sleep1321rcuc/123:00:181
22203962141,3sleep2222-21plymouthd22:20:462
23251842130,10sleep22326213-21cat23:30:182
22622632136,5sleep10-21swapper/122:50:211
22482872131,9sleep12249656-21sh22:40:231
22199622131,8sleep02214034-21sendmail-msp22:20:290
24110482120,4sleep12411998-21cut00:25:191
23455942120,1sleep10-21swapper/123:41:201
23223362120,3sleep22322342-21ssh23:27:012
23105772120,9sleep22312058-21cut23:20:212
22631512120,9sleep22264845-21cut22:50:222
22369592121,8sleep22236965-21ssh22:33:292
19880622120,3sleep2421rcuc/219:35:202
19880622120,3sleep2421rcuc/219:35:192
19862312120,9sleep11988061-21tr19:35:191
19862312120,9sleep11988061-21tr19:35:191
194892799121,8cyclictest0-21swapper/319:10:013
23778652110,3sleep2976-21sshd00:04:102
23237922112,5sleep12323787-21apt-get23:30:131
23072742110,3sleep00-21swapper/023:18:420
22604252111,7sleep02260427-21ssh22:48:340
22374972112,6sleep00-21swapper/022:35:000
22222372111,7sleep02222392-21df_inode22:25:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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