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2025-12-14 - 04:26
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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 Sun Dec 14, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
243300021230,3sleep2217-21plymouthd19:25:212
2405966992623,1cyclictest0-21swapper/322:20:003
240596699221,18cyclictest2800181-21turbostat00:15:013
2405966992017,1cyclictest0-21swapper/319:25:143
240596699201,15cyclictest2826060-21taskset00:35:143
2405966991916,1cyclictest0-21swapper/321:55:173
2405966991916,1cyclictest0-21swapper/321:40:213
2405966991916,1cyclictest0-21swapper/320:43:323
240596699191,13cyclictest2813270-21chrt00:25:123
240596699191,13cyclictest2787330-21taskset00:05:013
2405966991816,1cyclictest0-21swapper/319:50:013
2405966991815,1cyclictest0-21swapper/319:50:183
240596699181,13cyclictest2755616-21taskset23:40:123
240596699181,13cyclictest2549551-21turbostat21:00:003
240596699181,13cyclictest2412344-21taskset19:15:003
27560422171,13sleep22756979-21irqstats23:40:162
2405966991714,1cyclictest0-21swapper/323:25:173
2405966991714,1cyclictest0-21swapper/320:50:173
2405966991714,1cyclictest0-21swapper/320:45:163
2405966991714,1cyclictest0-21swapper/320:25:213
2405966991714,1cyclictest0-21swapper/319:35:013
2405966991714,1cyclictest0-21swapper/319:15:253
2405966991714,1cyclictest0-21swapper/319:15:243
240596699171,13cyclictest2693001-21taskset22:50:143
240596699171,12cyclictest2812993-21turbostat00:25:003
240596699171,12cyclictest2729406-21turbostat23:20:003
240596699171,12cyclictest2471790-21taskset19:55:203
240596699170,13cyclictest2704087-21taskset23:00:003
240596699170,12cyclictest2479326-21taskset20:05:023
240596699165,8cyclictest2672092-21taskset22:35:123
2405966991614,1cyclictest0-21swapper/321:10:163
2405966991614,0cyclictest0-21swapper/321:00:173
2405966991613,1cyclictest0-21swapper/323:50:173
2405966991613,1cyclictest0-21swapper/322:05:003
2405966991613,1cyclictest0-21swapper/321:35:153
2405966991613,1cyclictest0-21swapper/319:40:173
240596699161,12cyclictest2824851-21taskset00:30:203
240596699161,12cyclictest2805798-21taskset00:15:213
240596699161,12cyclictest2723027-21sleep23:14:593
240596699161,12cyclictest2659686-21chrt22:25:143
240596699161,12cyclictest2657865-21taskset22:20:223
240596699161,12cyclictest2594100-21chrt21:31:323
240596699161,12cyclictest2594100-21chrt21:31:323
240596699161,12cyclictest2517206-21taskset20:31:233
240596699161,12cyclictest2504733-21turbostat20:25:013
240596699161,12cyclictest2491625-21taskset20:12:183
2405966991512,1cyclictest0-21swapper/323:20:163
2405966991512,1cyclictest0-21swapper/320:00:163
2405966991512,1cyclictest0-21swapper/319:35:213
2405966991512,1cyclictest0-21swapper/319:20:153
240596699151,11cyclictest2774746-21taskset23:55:023
240596699151,11cyclictest2749125-21chrt23:35:023
240596699151,11cyclictest2742716-21taskset23:30:053
240596699151,11cyclictest2716286-21taskset23:05:423
240596699151,11cyclictest2690780-21taskset22:46:543
240596699151,11cyclictest2639173-21taskset22:06:193
240596699150,12cyclictest2767769-21chrt23:45:243
240596699150,12cyclictest2703515-21chrt22:56:043
240596699150,12cyclictest2678503-21taskset22:40:143
240596699150,12cyclictest2612897-21taskset21:45:203
240596699150,12cyclictest2587067-21taskset21:25:203
240596699150,12cyclictest2575417-21chrt21:20:063
240596699150,12cyclictest2569010-21chrt21:15:023
240596699150,12cyclictest2561331-21chrt21:05:213
28246952141,5sleep22824850-21/usr/sbin/munin00:30:202
24911082140,1sleep10-21swapper/120:10:221
240596699141,11cyclictest2498037-21taskset20:17:083
240596699141,10cyclictest2642759-21chrt22:10:163
240596699140,11cyclictest2793453-21taskset00:06:123
240596699140,11cyclictest2666027-21taskset22:30:163
240596699140,11cyclictest2619972-21chrt21:51:563
240596699140,11cyclictest2517741-21taskset20:35:063
307598130,8rtkit-daemon2736062-21/usr/sbin/munin23:25:132
307598130,5rtkit-daemon217-21plymouthd20:39:400
24128482131,9sleep02414590-21memory19:15:030
24128482131,9sleep02414590-21memory19:15:020
28136752120,4sleep22814448-21sed00:25:162
25061882120,4sleep02507320-21cut20:25:150
24989372121,3sleep10-21swapper/120:20:161
307598110,7rtkit-daemon714-21snmpd19:57:540
307598110,3rtkit-daemon217-21plymouthd00:24:580
27694332110,8sleep02770634-21cut23:50:150
26269142112,5sleep02626947-21apt-get22:00:120
26130472110,3sleep12613143-21ls21:45:231
25762622110,8sleep02577126-21cut21:20:170
24208832111,6sleep11-21systemd19:20:011
24208832111,6sleep11-21systemd19:20:001
23997452111,4sleep30-21swapper/319:05:083
307598100,7rtkit-daemon493-21gmain23:32:412
307598100,6rtkit-daemon714-21snmpd23:14:102
307598100,6rtkit-daemon3256-21sendmail-mta19:07:080
307598100,6rtkit-daemon316-21systemd-udevd23:15:442
307598100,6rtkit-daemon2425535-21kthreadcore19:20:170
307598100,5rtkit-daemon2683438-21grep22:40:200
307598100,5rtkit-daemon2569215-21diskstats21:15:140
307598100,5rtkit-daemon2465556-21python319:50:220
307598100,3rtkit-daemon714-21snmpd00:07:500
307598100,2rtkit-daemon217-21plymouthd21:55:520
307598100,2rtkit-daemon217-21plymouthd00:10:490
307598100,1rtkit-daemon3333005-21packagekitd00:00:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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