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2026-04-09 - 23:15
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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 100 highest latencies:
System rack4slot1.osadl.org (updated Thu Apr 09, 2026 09:11:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1803824390,1sleep012-21ksoftirqd/007:12:200
1803824390,1sleep012-21ksoftirqd/007:12:200
1586621070,2sleep20-21swapper/208:32:132
1775121050,4sleep10-21swapper/107:12:171
1775121050,4sleep10-21swapper/107:12:171
57521010,2sleep20-21swapper/207:52:132
57521010,2sleep20-21swapper/207:52:132
277242960,4chrt0-21swapper/007:38:280
277242960,4chrt0-21swapper/007:38:280
218092890,2chrt20634-21/usr/sbin/munin07:22:152
218092890,2chrt20634-21/usr/sbin/munin07:22:152
219112550,3sleep10-21swapper/108:47:151
219112550,3sleep10-21swapper/108:47:151
269952530,2chrt0-21swapper/309:02:083
269952530,2chrt0-21swapper/309:02:083
4732460,2sleep00-21swapper/007:52:110
4732460,2sleep00-21swapper/007:52:110
173362450,2sleep10-21swapper/108:37:061
173362450,2sleep10-21swapper/108:37:061
204782430,2sleep20-21swapper/208:46:562
204782430,2sleep20-21swapper/208:46:562
204782430,2sleep20-21swapper/208:46:562
63552410,1chrt12-21ksoftirqd/008:07:150
112842390,2sleep1201rcuc/108:22:031
112842390,2sleep1201rcuc/108:22:031
18100993720,7cyclictest27316-21find09:02:210
18100993720,7cyclictest27316-21find09:02:210
175292366,21sleep217628-21mailstats07:12:142
175292366,21sleep217628-21mailstats07:12:142
1810299351,32cyclictest73-21kswapd007:17:132
1810299351,32cyclictest73-21kswapd007:17:132
190332340,3sleep00-21swapper/008:42:040
190332340,3sleep00-21swapper/008:42:040
190332340,3sleep00-21swapper/008:42:040
74002300,2sleep17533-21cut08:12:031
74002300,2sleep17533-21cut08:12:031
18100993025,3cyclictest766-1kworker/0:2H08:02:070
18100993025,3cyclictest766-1kworker/0:2H08:02:070
207742290,2sleep120847-21grep07:22:021
207742290,2sleep120847-21grep07:22:021
1810099264,5cyclictest131rcu_preempt08:12:160
1810099264,5cyclictest131rcu_preempt08:12:160
18101992511,6cyclictest695-21runrttasks09:02:211
18101992511,6cyclictest695-21runrttasks09:02:211
1810099252,6cyclictest28260-21/usr/sbin/munin07:42:160
1810099252,6cyclictest28260-21/usr/sbin/munin07:42:160
1810299243,7cyclictest131rcu_preempt07:42:162
1810299243,7cyclictest131rcu_preempt07:42:162
1810299242,4cyclictest261rcuc/207:57:212
1810299242,4cyclictest261rcuc/207:57:212
1810299242,4cyclictest261rcuc/207:57:212
1810199243,4cyclictest21-21ksoftirqd/107:37:061
1810199243,4cyclictest21-21ksoftirqd/107:37:061
1810199241,7cyclictest14860-21sed08:31:591
1810099248,12cyclictest15201-21tr08:32:030
18100992410,5cyclictest0-21swapper/008:37:070
18100992410,5cyclictest0-21swapper/008:37:070
171402242,16sleep30-21swapper/307:12:073
171402242,16sleep30-21swapper/307:12:073
1810299232,17cyclictest5428-21snmpd08:07:072
1810199234,7cyclictest21-21ksoftirqd/108:09:341
137222230,5chrt0-21swapper/308:27:113
137222230,5chrt0-21swapper/308:27:113
18102992211,9cyclictest20809-21grep08:47:032
18102992211,9cyclictest20809-21grep08:47:032
1810299221,17cyclictest11443-21ls08:22:042
1810299221,17cyclictest11443-21ls08:22:042
1810199223,4cyclictest21-21ksoftirqd/107:47:031
1810199223,4cyclictest21-21ksoftirqd/107:47:031
18101992217,3cyclictest201rcuc/108:35:141
18101992215,5cyclictest695-21runrttasks07:52:131
18101992215,5cyclictest695-21runrttasks07:52:131
18101992215,5cyclictest201rcuc/109:11:591
18101992215,5cyclictest0-21swapper/107:17:131
18101992215,5cyclictest0-21swapper/107:17:131
1810099228,12cyclictest29442-21grep09:07:170
1810099228,12cyclictest29442-21grep09:07:170
1810099223,7cyclictest12-21ksoftirqd/007:22:120
1810099223,7cyclictest12-21ksoftirqd/007:22:120
1810099221,10cyclictest30581-21tr07:47:060
1810099221,10cyclictest30581-21tr07:47:060
1810099221,10cyclictest11687-21tail08:22:060
1810099221,10cyclictest11687-21tail08:22:060
1810299213,5cyclictest27-21ksoftirqd/208:37:142
1810299213,5cyclictest27-21ksoftirqd/208:37:142
1810299211,14cyclictest28093-21ls07:41:522
1810299211,14cyclictest28093-21ls07:41:522
1810199212,4cyclictest21-21ksoftirqd/108:57:041
1810199212,4cyclictest21-21ksoftirqd/108:57:041
18101992116,3cyclictest201rcuc/107:57:051
18101992116,3cyclictest201rcuc/107:57:051
18101992116,3cyclictest201rcuc/107:57:051
1810099211,8cyclictest3150-21sh08:01:510
1810099211,8cyclictest3150-21sh08:01:510
1810099211,8cyclictest3150-21sh08:01:510
18100992111,7cyclictest14153-21grep08:27:160
18100992111,7cyclictest14153-21grep08:27:160
1810099211,12cyclictest9867-21ntp_states08:17:090
1810099211,12cyclictest9867-21ntp_states08:17:090
250632200,3sleep30-21swapper/308:57:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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