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2026-05-10 - 02:20
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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 10, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143582202186,12sleep10-21swapper/119:05:591
143522201184,12sleep00-21swapper/019:05:550
143402197181,12sleep30-21swapper/319:05:453
14349211497,13sleep20-21swapper/219:05:522
215092490,0sleep10-21swapper/121:30:161
221332440,0sleep00-21swapper/021:45:590
190342420,0sleep10-21swapper/100:07:251
7379260,0sleep30-21swapper/322:10:203
30635260,0sleep10-21swapper/100:13:221
148549960,5cyclictest6545-21apt-get21:00:012
148519960,5cyclictest8360-21latency_hist23:15:000
148589955,0cyclictest29346-21kworker/3:223:36:403
148589955,0cyclictest29147-21kworker/3:121:55:563
148589955,0cyclictest29147-21kworker/3:121:33:323
148589955,0cyclictest29147-21kworker/3:119:52:463
148589955,0cyclictest29147-21kworker/3:119:30:233
148589955,0cyclictest0-21swapper/323:20:013
148589955,0cyclictest0-21swapper/322:48:003
148589955,0cyclictest0-21swapper/321:54:013
148589953,1cyclictest31522-21diskstats19:40:133
148589952,3cyclictest29719-21grep23:25:133
148589950,5cyclictest0-21swapper/322:57:443
148589950,5cyclictest0-21swapper/322:23:173
148589950,5cyclictest0-21swapper/322:08:163
148589950,5cyclictest0-21swapper/321:36:433
148589950,5cyclictest0-21swapper/319:45:153
148589950,5cyclictest0-21swapper/300:36:073
148589950,4cyclictest18060-21irqstats19:15:013
148589950,0cyclictest0-21swapper/321:17:573
148549955,0cyclictest0-21swapper/223:30:172
148549955,0cyclictest0-21swapper/222:22:112
148549953,1cyclictest32488-21apt22:55:002
148549950,5cyclictest0-21swapper/222:48:132
148549950,5cyclictest0-21swapper/222:40:142
148549950,3cyclictest16083-21/usr/sbin/munin20:15:152
148529951,2cyclictest0-21swapper/122:25:101
148529951,2cyclictest0-21swapper/122:15:121
148529950,5cyclictest0-21swapper/123:53:421
148529950,5cyclictest0-21swapper/123:43:151
148519955,0cyclictest0-21swapper/023:01:440
148519954,1cyclictest21888-21ssh23:36:480
148519951,2cyclictest0-21swapper/023:50:110
148519950,5cyclictest0-21swapper/000:04:270
148519950,4cyclictest30748-21munin-run19:40:010
148519950,4cyclictest18767-21apt-get20:20:010
148589944,0cyclictest29346-21kworker/3:222:40:433
148589944,0cyclictest29147-21kworker/3:121:44:433
148589944,0cyclictest29147-21kworker/3:121:11:093
148589944,0cyclictest29147-21kworker/3:120:48:453
148589944,0cyclictest29147-21kworker/3:120:37:333
148589944,0cyclictest29147-21kworker/3:120:15:103
148589943,1cyclictest14201-21cut20:10:133
148589942,2cyclictest29039-21ssh00:28:313
148589942,2cyclictest29039-21ssh00:28:313
148589942,1cyclictest802-21snmpd00:17:583
148589940,4cyclictest12205-21ssh00:04:283
148589940,4cyclictest11661-21df_inode20:05:123
148589940,4cyclictest0-21swapper/323:50:113
148589940,4cyclictest0-21swapper/323:44:533
148589940,4cyclictest0-21swapper/323:33:163
148589940,4cyclictest0-21swapper/322:50:093
148589940,4cyclictest0-21swapper/322:15:123
148589940,4cyclictest0-21swapper/300:34:553
148589940,3cyclictest9819-21cron21:25:013
148589940,3cyclictest8355-21apt-get23:15:023
148589940,3cyclictest5429-21ntp_states22:25:173
148589940,3cyclictest4398-21diskstats20:55:143
148589940,3cyclictest3771-21sed20:55:003
148589940,3cyclictest30565-21ssh23:57:023
148589940,3cyclictest25679-21ssh22:04:113
148589940,3cyclictest20950-21ssh23:05:113
148589940,3cyclictest14304-21ssh22:30:123
148589940,3cyclictest10759-21ssh23:00:113
148589940,3cyclictest0-21swapper/320:00:103
148589940,0cyclictest0-21swapper/323:13:193
148589940,0cyclictest0-21swapper/321:49:303
148589940,0cyclictest0-21swapper/300:20:243
148549944,0cyclictest0-21swapper/223:01:112
148549944,0cyclictest0-21swapper/200:15:052
148549943,1cyclictest5975-21/usr/sbin/munin19:55:172
148549942,1cyclictest7336-21sh22:10:212
148549942,1cyclictest24424-21ssh21:47:242
148549941,3cyclictest0-21swapper/220:25:152
148549941,1cyclictest0-21swapper/221:20:132
148549941,1cyclictest0-21swapper/221:20:132
148549940,4cyclictest57150irq/125-eth023:10:102
148549940,4cyclictest27519-21apt-get23:40:092
148549940,4cyclictest21159-21ssh23:05:132
148549940,4cyclictest1438-21python00:30:182
148549940,4cyclictest0-21swapper/223:55:112
148549940,4cyclictest0-21swapper/223:45:112
148549940,4cyclictest0-21swapper/223:15:112
148549940,4cyclictest0-21swapper/222:55:122
148549940,4cyclictest0-21swapper/222:25:102
148549940,4cyclictest0-21swapper/222:00:132
148549940,4cyclictest0-21swapper/221:40:232
148549940,4cyclictest0-21swapper/221:35:112
148549940,4cyclictest0-21swapper/221:30:212
148549940,4cyclictest0-21swapper/220:05:102
148549940,4cyclictest0-21swapper/200:20:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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