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2026-08-06 - 20:26
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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 rack5slot2.osadl.org (updated Thu Aug 06, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10052204188,11sleep30-21swapper/307:05:093
31792202187,11sleep10-21swapper/107:09:241
32072191172,14sleep00-21swapper/007:09:430
2933210485,14sleep20-21swapper/207:06:122
14012480,0sleep00-21swapper/009:26:410
183932440,0sleep10-21swapper/110:40:011
228922430,0sleep00-21swapper/009:53:570
183632100,0sleep10-21swapper/111:44:381
34119971,3cyclictest16638-21awk07:35:000
34219960,6cyclictest17765-21ntp_states10:55:173
15729260,1sleep041ktimersoftd/009:17:540
876250,0sleep10-21swapper/109:42:531
34219955,0cyclictest30326-21kworker/3:109:34:333
34219955,0cyclictest0-21swapper/310:08:183
34219952,3cyclictest802-21snmpd12:20:503
34219951,3cyclictest802-21snmpd12:16:243
34169955,0cyclictest0-21swapper/211:36:202
34169955,0cyclictest0-21swapper/210:40:102
34169955,0cyclictest0-21swapper/209:56:312
34169951,2cyclictest0-21swapper/208:40:122
34169950,5cyclictest666-21if_err_eth009:10:142
34169950,5cyclictest0-21swapper/212:22:192
34169950,5cyclictest0-21swapper/212:06:532
34169950,5cyclictest0-21swapper/210:02:472
34169950,5cyclictest0-21swapper/208:25:102
34169950,0cyclictest0-21swapper/212:37:092
34169950,0cyclictest0-21swapper/210:32:352
34169950,0cyclictest0-21swapper/209:25:142
34129955,0cyclictest0-21swapper/109:53:501
34129951,3cyclictest0-21swapper/107:40:111
34129950,5cyclictest0-21swapper/109:39:341
34119954,1cyclictest13119-21ssh12:14:310
34119950,5cyclictest0-21swapper/010:35:120
34119950,4cyclictest11534-21munin-run12:30:010
34119950,4cyclictest0-21swapper/012:15:020
34119950,0cyclictest31650-21diskmemload12:01:420
34119950,0cyclictest0-21swapper/010:15:120
19799250,0sleep30-21swapper/310:40:153
34219944,0cyclictest30326-21kworker/3:110:30:333
34219944,0cyclictest30326-21kworker/3:107:20:133
34219944,0cyclictest0-21swapper/311:46:223
34219944,0cyclictest0-21swapper/309:53:453
34219944,0cyclictest0-21swapper/307:15:173
34219943,1cyclictest57150irq/125-eth010:10:113
34219943,1cyclictest5384-21ntpq11:05:173
34219942,1cyclictest802-21snmpd09:05:563
34219942,1cyclictest23738-21ssh09:21:383
34219942,1cyclictest17758-21cat07:35:123
34219941,3cyclictest802-21snmpd10:20:023
34219940,4cyclictest28613-21ssh10:45:093
34219940,4cyclictest21627-21apt-get11:30:113
34219940,4cyclictest11571-21ssh11:40:223
34219940,4cyclictest0-21swapper/312:31:343
34219940,4cyclictest0-21swapper/312:31:343
34219940,4cyclictest0-21swapper/312:05:123
34219940,4cyclictest0-21swapper/312:02:483
34219940,4cyclictest0-21swapper/311:02:503
34219940,4cyclictest0-21swapper/310:00:123
34219940,4cyclictest0-21swapper/309:35:123
34219940,4cyclictest0-21swapper/309:25:493
34219940,4cyclictest0-21swapper/309:10:123
34219940,4cyclictest0-21swapper/308:45:113
34219940,3cyclictest8593-21apt10:35:113
34219940,3cyclictest809-21/usr/sbin/munin11:35:163
34219940,3cyclictest73802sleep311:22:383
34219940,3cyclictest5824-21sh12:26:233
34219940,3cyclictest4935-21/usr/sbin/munin09:45:133
34219940,3cyclictest31569-21sed12:40:013
34219940,3cyclictest27630-21perl09:00:123
34219940,3cyclictest26575-21ntp_states09:55:183
34219940,3cyclictest25489-21ntp_states11:15:193
34219940,3cyclictest25410-21/usr/sbin/munin07:50:153
34219940,3cyclictest21940-21apt-config07:45:013
34219940,3cyclictest17555-21perl08:40:143
34219940,3cyclictest14053-21ssh11:10:123
34219940,3cyclictest11589-21/usr/sbin/munin11:25:163
34219940,1cyclictest6260-21/usr/sbin/munin10:50:163
34219940,1cyclictest30480-21latency_hist10:29:593
34219940,1cyclictest29441-21/usr/sbin/munin11:50:113
34219940,1cyclictest24237-21/usr/sbin/munin08:55:193
34219940,1cyclictest21769-21/usr/sbin/munin08:50:183
34219940,1cyclictest11715-21/usr/sbin/munin07:25:213
34219940,0cyclictest0-21swapper/312:10:053
34219940,0cyclictest0-21swapper/311:55:063
34169944,0cyclictest31-21ksoftirqd/208:20:002
34169944,0cyclictest0-21swapper/212:10:052
34169944,0cyclictest0-21swapper/211:55:062
34169944,0cyclictest0-21swapper/210:52:322
34169941,2cyclictest0-21swapper/211:50:112
34169941,2cyclictest0-21swapper/209:40:122
34169941,2cyclictest0-21swapper/207:25:122
34169940,4cyclictest31650-21diskmemload12:00:102
34169940,4cyclictest0-21swapper/212:30:112
34169940,4cyclictest0-21swapper/212:30:102
34169940,4cyclictest0-21swapper/211:40:112
34169940,4cyclictest0-21swapper/211:25:102
34169940,4cyclictest0-21swapper/211:20:122
34169940,4cyclictest0-21swapper/211:13:052
34169940,4cyclictest0-21swapper/210:55:122
34169940,4cyclictest0-21swapper/210:25:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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