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2026-08-29 - 09:09
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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 Sat Aug 29, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3132210176,12sleep30-21swapper/319:07:493
3112203186,12sleep10-21swapper/119:07:471
3252184172,9sleep00-21swapper/019:07:590
326362161141,15sleep20-21swapper/219:05:552
224632500,0sleep10-21swapper/121:22:301
262842440,0sleep3381rcuc/320:00:013
280022420,0sleep10-21swapper/123:35:211
237882380,0sleep223787-21readlink21:40:012
69499102,4cyclictest2828-21munin-run23:40:000
69499102,4cyclictest17040-21munin-run00:20:000
37412100,0sleep30-21swapper/322:35:023
7049983,1cyclictest17501-21gltestperf22:25:153
7049982,1cyclictest21519-21ssh23:32:313
6949982,3cyclictest20725-21munin-run23:00:010
7049972,1cyclictest5861-21ssh21:46:373
7049972,1cyclictest31907-21ssh22:32:283
7049972,1cyclictest30678-21ssh23:53:413
7049972,1cyclictest14901-21ssh22:56:173
7049972,1cyclictest12903-21ssh00:34:083
7049972,1cyclictest11576-21ssh00:16:303
7049971,1cyclictest802-21snmpd19:43:463
7049971,1cyclictest802-21snmpd19:23:203
7049971,1cyclictest6347-21ssh23:57:333
7049971,1cyclictest13118-21ssh23:28:363
7049971,1cyclictest12588-21ssh23:44:483
7049971,1cyclictest0-21swapper/322:00:113
6949971,3cyclictest23789-21munin-run21:40:010
7049961,1cyclictest25385-21ssh00:07:093
6989965,1cyclictest31-21ksoftirqd/221:25:012
6969961,3cyclictest0-21swapper/123:45:101
6949960,6cyclictest0-21swapper/022:40:110
13000260,0sleep30-21swapper/323:11:493
8166250,0sleep30-21swapper/321:15:173
7049955,0cyclictest0-21swapper/321:27:283
7049951,1cyclictest20814-21ssh22:10:183
7049950,5cyclictest2173-21ssh23:39:363
7049950,5cyclictest0-21swapper/323:45:013
7049950,5cyclictest0-21swapper/323:18:033
7049950,5cyclictest0-21swapper/322:41:263
7049950,5cyclictest0-21swapper/300:00:143
7049950,4cyclictest3182-21munin-node19:15:013
7049950,4cyclictest0-21swapper/320:40:003
7049950,2cyclictest3379-21ssh21:13:023
7049950,0cyclictest1009-21ssh00:11:003
6989955,0cyclictest0-21swapper/200:17:092
6989950,5cyclictest1923-21ssh23:22:442
6989950,5cyclictest0-21swapper/222:55:122
6989950,5cyclictest0-21swapper/222:17:592
6989950,5cyclictest0-21swapper/221:45:322
6989950,5cyclictest0-21swapper/221:10:112
6989950,4cyclictest26541-21apt-get20:00:122
6989950,4cyclictest0-21swapper/219:30:022
6969951,3cyclictest0-21swapper/123:40:111
6969951,2cyclictest0-21swapper/123:55:121
6969951,2cyclictest0-21swapper/123:25:121
6969951,2cyclictest0-21swapper/120:45:091
6969951,2cyclictest0-21swapper/120:35:101
6949952,2cyclictest6755-21ssh22:35:480
6949950,5cyclictest0-21swapper/000:14:590
6949950,5cyclictest0-21swapper/000:07:520
6949950,4cyclictest24956-21diskstats21:00:120
6949950,1cyclictest16406-21munin-run19:40:010
6949950,0cyclictest8100-21ssh23:25:230
1576250,0sleep20-21swapper/221:28:332
7049941,3cyclictest802-21snmpd21:35:443
7049941,2cyclictest0-21swapper/321:00:103
7049941,2cyclictest0-21swapper/320:30:113
7049941,2cyclictest0-21swapper/320:00:113
7049940,4cyclictest31249-21munin-run20:10:013
7049940,4cyclictest14772-21ssh22:07:333
7049940,4cyclictest0-21swapper/323:22:163
7049940,4cyclictest0-21swapper/322:53:173
7049940,4cyclictest0-21swapper/322:20:113
7049940,4cyclictest0-21swapper/321:51:213
7049940,4cyclictest0-21swapper/321:40:103
7049940,4cyclictest0-21swapper/321:30:123
7049940,4cyclictest0-21swapper/320:20:123
7049940,4cyclictest0-21swapper/319:15:113
7049940,4cyclictest0-21swapper/300:35:103
7049940,3cyclictest948-21ssh23:05:273
7049940,3cyclictest364-21ssh00:27:253
7049940,3cyclictest32200-21df20:10:123
7049940,3cyclictest29837-21perl22:15:153
7049940,3cyclictest26858-21ssh23:02:373
7049940,3cyclictest21577-21/usr/sbin/munin19:50:203
7049940,3cyclictest18642-21ssh21:20:173
7049940,0cyclictest0-21swapper/321:58:193
7049940,0cyclictest0-21swapper/300:23:053
6989944,0cyclictest31-21ksoftirqd/220:30:002
6989944,0cyclictest0-21swapper/223:09:212
6989944,0cyclictest0-21swapper/222:25:072
6989944,0cyclictest0-21swapper/222:05:112
6989944,0cyclictest0-21swapper/221:16:182
6989943,1cyclictest9898-21diskstats20:30:132
6989942,2cyclictest15031-21kworker/2:122:10:252
6989942,2cyclictest0-21swapper/223:00:532
6989941,2cyclictest0-21swapper/220:05:092
6989941,1cyclictest13234-21ssh22:23:192
6989940,4cyclictest8755-21ssh23:42:222
6989940,4cyclictest29134-21diskmemload22:35:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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