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2026-04-11 - 01:48
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 highest latencies:
System rack4slot1.osadl.org (updated Fri Apr 10, 2026 19:41:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1806828490,5sleep10-21swapper/119:12:181
1806828490,5sleep10-21swapper/119:12:181
1806828490,5sleep10-21swapper/119:12:181
1806221770,1sleep012-21ksoftirqd/019:12:170
1806221770,1sleep012-21ksoftirqd/019:12:170
1806221770,1sleep012-21ksoftirqd/019:12:170
1999821030,3sleep119992-21find19:17:171
1999821030,3sleep119992-21find19:17:171
254852800,3sleep30-21swapper/319:32:103
18417994222,7cyclictest73-21kswapd019:27:160
18417994222,7cyclictest73-21kswapd019:27:160
18417993421,6cyclictest27650-21grep19:37:160
18417993421,6cyclictest27650-21grep19:37:160
1841999281,9cyclictest267052snmpd19:17:372
1841999281,9cyclictest267052snmpd19:17:372
18418992614,10cyclictest26705-21snmpd19:22:381
18418992614,10cyclictest26705-21snmpd19:22:381
183642265,13sleep20-21swapper/219:12:282
183642265,13sleep20-21swapper/219:12:282
183642265,13sleep20-21swapper/219:12:282
171992242,15sleep30-21swapper/319:12:043
171992242,15sleep30-21swapper/319:12:043
171992242,15sleep30-21swapper/319:12:043
1841899237,8cyclictest0-21swapper/119:40:431
1841899237,8cyclictest0-21swapper/119:40:431
1841799234,4cyclictest141rcub/019:22:140
1841799234,4cyclictest141rcub/019:22:140
1841799231,9cyclictest20712-21latency_hist19:21:520
1841799231,9cyclictest20712-21latency_hist19:21:520
1841899218,10cyclictest26075-21taskset19:33:081
1841899208,10cyclictest23525-21ntp_offset19:27:111
1841899208,10cyclictest23525-21ntp_offset19:27:111
1841799201,7cyclictest25714-21wc19:32:140
1841999191,10cyclictest233672/usr/sbin/munin19:27:082
1841999191,10cyclictest233672/usr/sbin/munin19:27:082
254382180,2sleep20-21swapper/219:32:092
1841999188,7cyclictest27846-21unixbench_multi19:37:182
1841999188,7cyclictest27846-21unixbench_multi19:37:182
1841999172,3cyclictest73-21kswapd019:22:142
1841999172,3cyclictest73-21kswapd019:22:142
1842099151,9cyclictest0-21swapper/319:17:073
1842099151,9cyclictest0-21swapper/319:17:073
1842099148,5cyclictest33-21ksoftirqd/319:23:423
1842099148,5cyclictest33-21ksoftirqd/319:23:423
1842099131,9cyclictest23366-21chrt19:27:083
1842099131,9cyclictest23366-21chrt19:27:083
1842099121,8cyclictest0-21swapper/319:37:063
1842099121,8cyclictest0-21swapper/319:37:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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