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2026-04-04 - 07:19
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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 Sat Apr 04, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2069656993330,1cyclictest0-21swapper/322:04:593
129998270,11rtkit-daemon222-21plymouthd20:51:011
2069656992522,1cyclictest0-21swapper/322:35:183
247581922312,9sleep02476452-21irqrtprio23:50:160
206965699232,15cyclictest2380933-21taskset22:47:203
2069656992320,1cyclictest0-21swapper/320:00:273
2069656992320,1cyclictest0-21swapper/319:40:023
2069656992219,1cyclictest0-21swapper/321:00:003
2069656992218,1cyclictest0-21swapper/322:15:133
2069656992218,1cyclictest0-21swapper/320:30:003
2069656992117,1cyclictest0-21swapper/320:50:153
206965699211,16cyclictest2180457-21taskset20:30:223
206965699202,14cyclictest2504844-21taskset00:06:033
2069656992017,1cyclictest0-21swapper/323:05:253
2069656992017,1cyclictest0-21swapper/323:00:263
2069656992017,1cyclictest0-21swapper/323:00:003
2069656992017,1cyclictest0-21swapper/321:45:273
206965699201,15cyclictest2435189-21taskset23:22:093
206965699201,15cyclictest2357855-21taskset22:33:143
206965699201,14cyclictest2537619-21taskset00:30:113
206965699201,14cyclictest2450969-21taskset23:32:593
206965699201,14cyclictest2443911-21turbostat23:30:003
20749362191,2sleep00-21swapper/019:10:210
206965699193,13cyclictest2374051-21turbostat22:45:013
206965699192,13cyclictest2104051-21turbostat19:35:003
2069656991916,1cyclictest0-21swapper/321:30:153
2069656991916,1cyclictest0-21swapper/321:25:253
2069656991916,1cyclictest0-21swapper/320:15:163
206965699191,14cyclictest2515678-21taskset00:15:173
206965699191,14cyclictest2465944-21taskset23:40:563
206965699191,14cyclictest2418578-21taskset23:10:223
206965699190,14cyclictest2545092-21sleep00:39:553
246576521810,2sleep2171rcu_preempt23:40:282
2069656991816,1cyclictest0-21swapper/319:40:173
2069656991815,1cyclictest0-21swapper/321:40:233
2069656991815,1cyclictest0-21swapper/319:25:193
206965699181,13cyclictest2488576-21taskset23:55:243
206965699181,13cyclictest2302870-21taskset21:56:173
206965699181,13cyclictest2288953-21chrt21:50:113
206965699181,13cyclictest2242332-21chrt21:20:123
206965699181,13cyclictest2193886-21taskset20:40:363
206965699181,13cyclictest2181627-21taskset20:35:023
206965699181,12cyclictest2537241-21taskset00:29:563
206965699181,12cyclictest2420967-21chrt23:15:103
206965699177,7cyclictest23882612sleep322:51:193
206965699173,8cyclictest2490588-21sleep00:04:543
2069656991714,1cyclictest0-21swapper/323:45:133
206965699171,14cyclictest2513463-21taskset00:13:363
206965699171,13cyclictest2529318-21taskset00:24:263
206965699171,13cyclictest2341738-21taskset22:21:383
206965699171,13cyclictest2318416-21taskset22:06:153
206965699171,13cyclictest2241344-21taskset21:18:163
206965699171,13cyclictest2149072-21taskset20:08:253
206965699171,13cyclictest2084635-21taskset19:19:383
206965699171,13cyclictest2075952-21taskset19:14:003
206965699171,12cyclictest2482839-21taskset23:54:593
206965699171,12cyclictest2320018-21taskset22:10:113
206965699171,12cyclictest2213921-21chrt21:00:123
206965699171,12cyclictest2152517-21taskset20:10:173
206965699171,12cyclictest2084700-21sleep19:24:553
22659812161,11sleep12266113-21ps21:35:151
2069656991613,1cyclictest0-21swapper/322:25:113
206965699161,12cyclictest2458069-21taskset23:35:443
206965699161,12cyclictest2272064-21taskset21:37:013
206965699161,12cyclictest2233509-21taskset21:13:073
206965699161,12cyclictest2194683-21taskset20:45:123
206965699161,12cyclictest2167647-21taskset20:20:243
206965699161,12cyclictest2136204-21taskset19:58:313
206965699161,12cyclictest2123679-21taskset19:50:043
206965699161,12cyclictest2117215-21taskset19:45:043
206965699161,11cyclictest2220298-21taskset21:05:083
129998150,11rtkit-daemon2489556-21ssh23:57:020
20692242140,2sleep30-21swapper/319:06:403
129998140,10rtkit-daemon2199562-21load20:45:191
24050832131,8sleep21-21systemd23:05:012
23233032130,10sleep22325008-21cat22:10:202
23182322131,8sleep02318238-21ssh22:05:440
21612632131,2sleep10-21swapper/120:15:241
129998130,3rtkit-daemon2341677-21ssh22:21:251
23434122121,8sleep12343615-21smartctl22:25:141
22889132127,3sleep2431ktimers/221:50:112
21749742120,9sleep12175028-21munin-run20:30:001
21683862121,4sleep2222-21plymouthd20:23:242
21040302120,9sleep22104223-21cat19:35:002
129998120,8rtkit-daemon2510129-21tr00:10:170
129998120,8rtkit-daemon2365061-21ssh22:36:200
129998120,8rtkit-daemon2303324-21taskset21:57:360
129998120,3rtkit-daemon2304657-21sh22:00:130
24988152110,8sleep12498919-21grep00:05:141
24184762111,6sleep1222-21plymouthd23:10:201
24114182110,3sleep2222-21plymouthd23:05:402
23420602110,1sleep00-21swapper/022:22:330
22879562110,1sleep00-21swapper/021:48:040
22346702110,7sleep22234771-21fschecks_time21:15:162
21206132110,9sleep12122289-21cat19:45:181
20969502111,7sleep02097146-21/usr/sbin/munin19:25:240
20840512111,7sleep02084295-21/usr/sbin/munin19:15:270
129998110,7rtkit-daemon1000-21snmpd19:37:531
129998110,3rtkit-daemon222-21plymouthd00:37:390
129998110,2rtkit-daemon222-21plymouthd00:15:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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