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2025-12-02 - 09:32
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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 Tue Dec 02, 2025 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313692197181,11sleep00-21swapper/019:08:430
312982193178,10sleep10-21swapper/119:07:471
314332186170,12sleep20-21swapper/219:09:342
314192179162,12sleep30-21swapper/319:09:233
168512460,0sleep10-21swapper/121:36:211
113242450,0sleep30-21swapper/323:28:153
22762430,0sleep20-21swapper/223:07:002
301542380,0sleep30-21swapper/323:37:413
102892110,0sleep10-21swapper/123:44:231
3165299103,5cyclictest1292-21ssh21:12:372
3165299100,9cyclictest755-21apt-get21:45:132
3165299100,9cyclictest20314-21apt-get20:55:142
3165299100,5cyclictest19597-21ssh22:43:192
316529991,7cyclictest13202-21apt-get21:35:112
316529990,8cyclictest9784-21perf19:30:012
316529990,8cyclictest7544-21apt-get20:30:132
316529990,8cyclictest2576-21apt-get19:15:132
316529990,8cyclictest22809-21apt-get22:45:132
316529990,8cyclictest14611-21apt-get23:30:132
316529990,6cyclictest6181-21ssh23:58:352
316529990,6cyclictest30615-21ssh22:32:202
316529990,6cyclictest12235-21ssh22:23:172
316529990,6cyclictest11309-21ssh22:06:072
316529990,5cyclictest6993-21chrt20:26:102
316529990,5cyclictest6976-21chrt19:21:022
316529990,5cyclictest5842-21ssh23:41:322
316529990,5cyclictest5775-21ssh22:52:342
316529990,5cyclictest44972sleep220:20:502
316529990,5cyclictest4206-21taskset22:02:562
316529990,5cyclictest3306-21chrt00:13:352
316529990,5cyclictest32037-21chrt20:11:582
316529990,5cyclictest29576-21chrt20:07:092
316529990,5cyclictest27398-21chrt21:08:482
316529990,5cyclictest27398-21chrt21:08:482
316529990,5cyclictest26933-21chrt20:03:042
316529990,5cyclictest25336-21ssh22:13:442
316529990,5cyclictest20324-21chrt21:21:562
316529990,5cyclictest19332-21chrt19:45:562
316529990,5cyclictest14458-21chrt19:36:582
316529990,5cyclictest11908-21taskset19:30:582
316529990,0cyclictest15740-21ssh23:46:342
26398290,0sleep10-21swapper/121:41:051
316529980,7cyclictest9962-21if_eth400:00:152
316529980,7cyclictest32527-21apt-get20:15:132
316529980,7cyclictest26410-21fschecks_count21:25:182
316529980,7cyclictest24493-21apt23:35:142
316529980,7cyclictest22371-21apt-get19:55:132
316529980,7cyclictest21597-21apt-get23:50:112
316529980,7cyclictest17366-21ssh23:15:132
316529980,7cyclictest13332-21apt-get00:35:132
316529980,7cyclictest11582-21sort21:50:162
316529980,7cyclictest10010-21apt-get20:35:122
316529980,5cyclictest8036-21ssh21:32:052
316529980,5cyclictest7393-21ssh23:10:082
316529980,5cyclictest711-21runrttasks20:41:042
316529980,5cyclictest5168-21ssh22:35:262
316529980,5cyclictest3371-21ssh00:30:082
316529980,5cyclictest31768-21sshd00:27:422
316529980,5cyclictest30091-21ssh22:15:262
316529980,5cyclictest29478-21ssh23:20:282
316529980,5cyclictest25821-21ssh23:02:402
316529980,5cyclictest22914-21ssh21:40:022
316529980,5cyclictest20394-21ssh21:55:062
316529980,5cyclictest19888-21taskset19:50:052
316529980,5cyclictest19705-21taskset20:50:252
316529980,5cyclictest18668-21ssh22:26:032
316529980,5cyclictest17438-21ssh22:58:392
316529980,5cyclictest17042-21chrt19:43:112
316529980,5cyclictest1302-21taskset19:11:462
316529980,4cyclictest8980-21taskset21:16:072
316529980,4cyclictest0-21swapper/200:20:342
316529980,4cyclictest0-21swapper/200:05:152
316529980,0cyclictest0-21swapper/200:15:082
316529970,7cyclictest17417-21perf20:50:012
316529970,0cyclictest0-21swapper/223:25:092
316529960,6cyclictest24471-21cat21:00:212
316579955,0cyclictest9711-21kworker/3:022:30:153
316579954,1cyclictest0-21swapper/323:34:523
316579950,5cyclictest0-21swapper/322:47:263
316579950,5cyclictest0-21swapper/321:50:133
316489955,0cyclictest0-21swapper/121:22:411
316489951,3cyclictest0-21swapper/121:30:131
316489951,2cyclictest0-21swapper/100:00:111
316489950,5cyclictest0-21swapper/123:09:291
316479955,0cyclictest0-21swapper/000:10:140
316479950,5cyclictest0-21swapper/023:42:010
316479950,5cyclictest0-21swapper/022:03:390
316479950,5cyclictest0-21swapper/021:50:170
316479950,4cyclictest0-21swapper/019:30:130
316479950,0cyclictest27511-21diskmemload22:44:420
316579944,0cyclictest20725-21kworker/3:223:03:513
316579944,0cyclictest1781-21kworker/3:119:42:203
316579944,0cyclictest1781-21kworker/3:119:31:073
316579944,0cyclictest0-21swapper/322:20:143
316579943,1cyclictest5791-21perl19:20:143
316579943,1cyclictest17838-21/usr/sbin/munin20:50:153
316579942,1cyclictest714-21snmpd19:38:213
316579941,1cyclictest0-21swapper/300:15:123
316579940,4cyclictest7539-21/usr/sbin/munin19:25:193
316579940,4cyclictest55950irq/130-eth000:30:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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