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2026-05-17 - 12:52
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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 Sun May 17, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94562196180,11sleep10-21swapper/119:08:521
92632193176,12sleep30-21swapper/319:06:243
94822189170,14sleep00-21swapper/019:09:110
9504211194,13sleep20-21swapper/219:09:282
272012490,0sleep30-21swapper/321:35:293
205572440,0sleep10-21swapper/123:55:201
98992420,0sleep20-21swapper/223:18:382
167552100,0sleep00-21swapper/023:37:440
97479982,3cyclictest26096-21idleruntime-cro22:55:000
97479972,4cyclictest7647-21idleruntime-cro20:10:000
97479970,3cyclictest24364-21idleruntime-cro21:35:000
97479960,3cyclictest2521-21awk00:35:000
97579955,0cyclictest0-21swapper/323:31:183
97579955,0cyclictest0-21swapper/300:39:073
97579950,5cyclictest23257-21ssh23:40:273
97579950,0cyclictest0-21swapper/321:16:433
97539955,0cyclictest0-21swapper/222:49:572
97539955,0cyclictest0-21swapper/219:10:212
97539950,5cyclictest0-21swapper/223:06:482
97539950,5cyclictest0-21swapper/222:32:192
97539950,5cyclictest0-21swapper/222:02:302
97539950,5cyclictest0-21swapper/221:58:442
97539950,5cyclictest0-21swapper/221:17:062
97539950,5cyclictest0-21swapper/200:13:282
97489951,2cyclictest0-21swapper/122:45:101
97489950,5cyclictest0-21swapper/123:43:461
97489950,5cyclictest0-21swapper/122:58:231
97489950,5cyclictest0-21swapper/122:21:341
97489950,5cyclictest0-21swapper/119:35:141
97579944,0cyclictest0-21swapper/323:25:123
97579944,0cyclictest0-21swapper/322:18:423
97579944,0cyclictest0-21swapper/320:25:123
97579942,1cyclictest11084-21diskstats20:15:123
97579941,2cyclictest0-21swapper/323:50:113
97579941,2cyclictest0-21swapper/322:20:113
97579940,4cyclictest23710-21perl19:35:133
97579940,4cyclictest17374-21ssh00:10:123
97579940,4cyclictest0-21swapper/323:07:533
97579940,4cyclictest0-21swapper/322:59:543
97579940,4cyclictest0-21swapper/322:50:133
97579940,4cyclictest0-21swapper/322:25:583
97579940,4cyclictest0-21swapper/321:55:053
97579940,4cyclictest0-21swapper/321:45:073
97579940,4cyclictest0-21swapper/321:30:113
97579940,4cyclictest0-21swapper/321:25:053
97579940,4cyclictest0-21swapper/321:20:123
97579940,4cyclictest0-21swapper/320:10:183
97579940,4cyclictest0-21swapper/319:20:203
97579940,4cyclictest0-21swapper/300:30:133
97579940,4cyclictest0-21swapper/300:06:543
97579940,4cyclictest0-21swapper/300:01:453
97579940,3cyclictest6133-21/usr/sbin/munin22:45:163
97579940,3cyclictest5339-21diskmemload22:35:223
97579940,3cyclictest5339-21diskmemload00:25:013
97579940,3cyclictest4951-21ssh21:40:263
97579940,3cyclictest4916-21sh22:12:313
97579940,3cyclictest30512-21grep20:55:003
97579940,3cyclictest26737-21tail23:10:203
97579940,3cyclictest2547-21ssh23:46:273
97579940,3cyclictest20355-21ssh23:55:193
97579940,3cyclictest13637-21ssh22:32:403
97579940,3cyclictest12299-21cat19:15:003
97579940,3cyclictest10568-21ssh23:35:033
97579940,3cyclictest0-21swapper/320:30:123
97579940,3cyclictest0-21swapper/319:30:193
97579940,1cyclictest6658-21perl21:10:153
97579940,1cyclictest30935-21diskstats19:50:143
97579940,1cyclictest27877-21fschecks_count00:15:143
97579940,1cyclictest24431-21sort21:50:163
97579940,1cyclictest13569-21df20:20:143
97579940,0cyclictest0-21swapper/323:19:043
97539944,0cyclictest31-21ksoftirqd/222:40:002
97539944,0cyclictest0-21swapper/222:12:232
97539944,0cyclictest0-21swapper/221:40:322
97539943,1cyclictest0-21swapper/221:13:192
97539942,2cyclictest21833-21kworker/2:023:42:412
97539942,2cyclictest21833-21kworker/2:023:26:052
97539941,3cyclictest802-21snmpd00:35:152
97539940,4cyclictest8713-21ssh21:26:442
97539940,4cyclictest14625-21apt-get21:30:122
97539940,4cyclictest13142-21ssh00:08:002
97539940,4cyclictest1218-21df_inode23:30:142
97539940,4cyclictest0-21swapper/223:54:442
97539940,4cyclictest0-21swapper/223:47:002
97539940,4cyclictest0-21swapper/223:35:122
97539940,4cyclictest0-21swapper/223:20:112
97539940,4cyclictest0-21swapper/223:11:552
97539940,4cyclictest0-21swapper/223:01:522
97539940,4cyclictest0-21swapper/223:01:522
97539940,4cyclictest0-21swapper/222:55:132
97539940,4cyclictest0-21swapper/222:40:122
97539940,4cyclictest0-21swapper/222:20:182
97539940,4cyclictest0-21swapper/221:00:122
97539940,4cyclictest0-21swapper/219:40:172
97539940,4cyclictest0-21swapper/200:30:162
97539940,4cyclictest0-21swapper/200:15:132
97539940,3cyclictest4899-21ssh00:20:102
97539940,3cyclictest4087-21irqstats21:05:172
97539940,3cyclictest31196-21idleruntime-cro22:10:002
97539940,3cyclictest28612-21df_inode20:50:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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