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2025-12-04 - 13:22
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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 Dec 04, 2025 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
162282225208,12sleep10-21swapper/119:08:541
162722190174,12sleep00-21swapper/019:09:290
161162182166,12sleep30-21swapper/319:07:273
162392176160,11sleep20-21swapper/219:09:032
87372460,0sleep10-21swapper/100:21:351
14932410,0sleep20-21swapper/219:40:162
119642330,0sleep00-21swapper/023:02:080
199902320,0sleep219989-21ssh22:50:142
165689960,6cyclictest0-21swapper/223:50:182
165689960,1cyclictest8950-21ssh22:28:322
165669961,3cyclictest0-21swapper/123:10:131
165669961,3cyclictest0-21swapper/119:40:111
165669961,3cyclictest0-21swapper/100:00:131
165669961,2cyclictest0-21swapper/121:05:121
165659964,2cyclictest0-21swapper/021:16:290
165729955,0cyclictest56750irq/130-eth021:56:173
165729955,0cyclictest56750irq/130-eth021:56:173
165729954,1cyclictest0-21swapper/300:02:093
165729951,2cyclictest0-21swapper/320:15:113
165729950,5cyclictest0-21swapper/322:18:253
165729950,5cyclictest0-21swapper/300:30:573
165729950,5cyclictest0-21swapper/300:16:343
165729950,4cyclictest28511-21users22:05:243
165689955,0cyclictest0-21swapper/221:51:512
165689950,5cyclictest0-21swapper/223:35:012
165689950,4cyclictest11834-21apt-get22:30:132
165669952,2cyclictest0-21swapper/123:20:121
165669951,3cyclictest0-21swapper/123:45:101
165669951,3cyclictest0-21swapper/120:40:121
165669951,3cyclictest0-21swapper/120:10:111
165669951,3cyclictest0-21swapper/119:45:111
165669951,2cyclictest0-21swapper/123:50:121
165669951,2cyclictest0-21swapper/123:00:131
165669951,2cyclictest0-21swapper/122:50:111
165669951,2cyclictest0-21swapper/122:25:121
165669951,2cyclictest0-21swapper/121:40:121
165669951,2cyclictest0-21swapper/120:15:101
165669951,2cyclictest0-21swapper/100:25:021
165669951,1cyclictest0-21swapper/122:15:151
165659955,0cyclictest0-21swapper/023:48:150
165659950,5cyclictest12357-21diskmemload23:20:020
165659950,5cyclictest0-21swapper/021:35:330
165659950,4cyclictest29459-21ssh22:55:120
165659950,4cyclictest0-21swapper/019:35:120
6986240,0sleep1201rcuc/122:10:571
165729944,0cyclictest0-21swapper/322:58:523
165729944,0cyclictest0-21swapper/321:26:363
165729944,0cyclictest0-21swapper/320:54:523
165729944,0cyclictest0-21swapper/319:37:543
165729943,1cyclictest32715-21sed22:40:143
165729943,1cyclictest22690-21/usr/sbin/munin20:25:123
165729942,2cyclictest31161-21wget21:35:133
165729942,1cyclictest13577-21swap22:30:193
165729942,1cyclictest11303-21ssh23:18:173
165729942,0cyclictest0-21swapper/319:13:583
165729941,3cyclictest517-21nscd23:25:133
165729941,2cyclictest0-21swapper/323:45:113
165729941,2cyclictest0-21swapper/322:25:133
165729941,2cyclictest0-21swapper/320:10:123
165729941,1cyclictest0-21swapper/323:00:123
165729941,1cyclictest0-21swapper/321:05:123
165729940,4cyclictest22553-21/usr/sbin/munin19:20:133
165729940,4cyclictest0-21swapper/323:55:113
165729940,4cyclictest0-21swapper/323:50:133
165729940,4cyclictest0-21swapper/323:40:153
165729940,4cyclictest0-21swapper/323:35:533
165729940,4cyclictest0-21swapper/323:10:123
165729940,4cyclictest0-21swapper/322:50:123
165729940,4cyclictest0-21swapper/322:45:123
165729940,4cyclictest0-21swapper/321:50:133
165729940,4cyclictest0-21swapper/321:45:133
165729940,4cyclictest0-21swapper/321:34:243
165729940,4cyclictest0-21swapper/321:10:123
165729940,4cyclictest0-21swapper/319:59:523
165729940,4cyclictest0-21swapper/319:45:113
165729940,4cyclictest0-21swapper/319:15:133
165729940,3cyclictest27639-21apt-get20:35:133
165729940,3cyclictest26539-21ssh22:36:583
165729940,3cyclictest23965-21apt-get22:20:023
165729940,3cyclictest17062-21ssh23:05:123
165729940,3cyclictest16919-21diskstats22:00:133
165729940,3cyclictest0-21swapper/321:20:133
165729940,3cyclictest0-21swapper/320:05:003
165729940,2cyclictest8042-21ssh22:11:363
165729940,2cyclictest0-21swapper/323:20:133
165729940,2cyclictest0-21swapper/300:20:113
165729940,1cyclictest32639-21/usr/sbin/munin19:40:163
165729940,1cyclictest25111-21/usr/sbin/munin19:25:163
165729940,1cyclictest23074-21grep21:15:133
165689944,0cyclictest0-21swapper/221:35:512
165689943,1cyclictest9861-21dump-pmu-power20:00:002
165689942,2cyclictest808-21snmpd20:08:572
165689942,1cyclictest808-21snmpd19:15:542
165689942,1cyclictest808-21snmpd00:34:322
165689941,1cyclictest0-21swapper/219:50:112
165689940,4cyclictest7648-21apt-get21:00:112
165689940,4cyclictest14584-21awk21:10:202
165689940,4cyclictest1296-21rm22:56:452
165689940,4cyclictest0-21swapper/223:55:532
165689940,4cyclictest0-21swapper/223:45:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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