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2026-09-14 - 03:43
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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 14, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15647932410,1sleep00-21swapper/019:45:250
1512159993121,7cyclictest1808550-21sleep22:40:003
1512159992623,1cyclictest0-21swapper/321:00:283
1512159992623,1cyclictest0-21swapper/320:20:203
1512159992623,1cyclictest0-21swapper/320:20:013
1512159992623,1cyclictest0-21swapper/300:20:123
1512159992522,1cyclictest0-21swapper/323:20:013
1512159992522,1cyclictest0-21swapper/321:21:093
1512159992522,1cyclictest0-21swapper/300:10:013
1512159992421,1cyclictest0-21swapper/323:40:193
1512159992420,2cyclictest0-21swapper/323:00:233
1512159992320,1cyclictest0-21swapper/321:40:253
1512159992320,1cyclictest0-21swapper/321:35:253
1512159992320,1cyclictest0-21swapper/321:05:163
1512159992320,1cyclictest0-21swapper/320:00:013
1512159992219,1cyclictest0-21swapper/323:15:213
1512159992219,1cyclictest0-21swapper/322:21:303
1512159992219,1cyclictest0-21swapper/319:40:123
1512159992219,1cyclictest0-21swapper/319:20:483
1512159992219,1cyclictest0-21swapper/300:00:263
1512159992218,2cyclictest0-21swapper/322:40:193
1512159992118,1cyclictest0-21swapper/321:45:273
1512159992017,1cyclictest0-21swapper/322:15:243
1512159992017,1cyclictest0-21swapper/322:01:053
1512159992017,1cyclictest0-21swapper/321:55:003
1512159992017,1cyclictest0-21swapper/300:30:003
1512159992013,4cyclictest17619092sleep322:10:013
151215999201,15cyclictest1526919-21taskset19:18:063
151215999201,14cyclictest1837683-21taskset22:55:233
151215999192,13cyclictest1654619-21taskset20:55:243
1512159991916,1cyclictest0-21swapper/323:55:193
151215999191,14cyclictest1964047-21taskset00:18:153
151215999191,14cyclictest1855692-21taskset23:10:033
151215999191,14cyclictest1800732-21taskset22:34:593
151215999191,14cyclictest1628947-21taskset20:35:233
151215999191,13cyclictest1785486-21taskset22:25:003
151215999191,13cyclictest1707380-21sleep21:35:003
151215999182,12cyclictest1853893-21taskset23:05:383
1512159991816,1cyclictest0-21swapper/322:15:013
1512159991815,1cyclictest0-21swapper/321:25:193
1512159991815,1cyclictest0-21swapper/320:40:193
151215999181,13cyclictest1994365-21taskset00:35:313
151215999181,13cyclictest1956362-21taskset00:13:423
151215999181,13cyclictest1916703-21taskset23:46:393
151215999181,13cyclictest1893417-21taskset23:32:093
151215999181,13cyclictest1879102-21taskset23:25:103
151215999181,13cyclictest1744784-21taskset21:55:463
151215999181,13cyclictest1676767-21taskset21:15:163
151215999181,13cyclictest1674589-21taskset21:10:313
151215999181,13cyclictest1623116-21taskset20:31:143
151215999181,13cyclictest1616075-21chrt20:25:213
151215999181,13cyclictest1596864-21taskset20:10:263
151215999181,13cyclictest1591099-21taskset20:08:013
151215999181,13cyclictest1539972-21turbostat19:30:003
151215999181,13cyclictest1517568-21taskset19:10:243
151215999181,12cyclictest1924243-21taskset23:51:043
1512159991810,5cyclictest1571984-21turbostat19:55:003
151215999171,13cyclictest1551814-21taskset19:35:223
151215999171,12cyclictest1987677-21chrt00:33:423
151215999171,12cyclictest1824451-21taskset22:50:023
151215999171,12cyclictest1823292-21taskset22:47:303
151215999171,12cyclictest1636491-21taskset20:45:053
151215999171,12cyclictest1564743-21taskset19:45:243
151215999171,12cyclictest1546033-21taskset19:30:573
15457272160,12sleep11545949-21awk19:30:281
151215999161,12cyclictest1901372-21taskset23:37:253
151215999161,11cyclictest1642897-21taskset20:50:073
151215999160,12cyclictest1580077-21taskset20:00:193
15066962161,11sleep11507501-21tr19:05:181
18620872151,7sleep01862093-21ssh23:12:050
18397452150,11sleep21839961-21sed23:00:012
19022252141,10sleep11902352-21cat23:40:011
18239472146,2sleep10-21swapper/122:49:291
16904312140,10sleep11683961-21sendmail-msp21:21:131
15397342149,3sleep01518249-21kworker/0:2+kacpi_notify19:27:220
19175012130,5sleep10-21swapper/123:48:471
18375982131,4sleep11837640-21ntpq22:55:221
16778742131,4sleep11679115-21tr21:15:191
16117222131,9sleep21612554-21cat20:25:172
19490182121,8sleep2222-21plymouthd00:10:012
18862642120,9sleep11886266-21ssh23:29:101
18463492124,6sleep0872-21in:imuxsock23:01:230
18276092124,5sleep11829501-21kthreadcore22:50:171
18088212121,8sleep10-21swapper/122:40:071
17840752121,8sleep01777444-21sendmail-msp22:21:340
16300432121,8sleep01629822-21sendmail-msp20:40:060
15727072121,3sleep01573638-21irqstats19:55:160
19879662110,8sleep11987970-21ssh00:34:331
19397602110,8sleep01933444-21sendmail-msp00:00:530
19281412113,1sleep1171rcu_preempt23:55:161
19235252111,2sleep01923556-21ntpq23:50:220
18878832116,2sleep01888777-21kthreadcore23:30:180
17791282110,8sleep11779832-21kthreadcore22:20:181
17625832112,6sleep01763075-21irqcore22:10:150
16842432113,5sleep242544-21kworker/u16:0+ext4-rsv-conversion21:20:132
16610892111,6sleep21661114-21ntpq21:00:252
16489082110,1sleep10-21swapper/120:53:181
16358772112,7sleep11629822-21sendmail-msp20:40:311
16225842110,7sleep21-21systemd20:30:262
16030202110,8sleep21603140-21ntpq20:15:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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