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2026-04-09 - 19:28
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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 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
250632200,3sleep30-21swapper/308:57:103
1810399201,13cyclictest0-21swapper/307:27:043
1810199206,5cyclictest21-21ksoftirqd/108:56:531
1810199206,5cyclictest21-21ksoftirqd/108:56:531
1810199206,5cyclictest21-21ksoftirqd/108:56:531
1810199206,5cyclictest21-21ksoftirqd/108:29:421
1810199201,6cyclictest21-21ksoftirqd/108:17:141
1810199201,6cyclictest21-21ksoftirqd/108:17:141
18101992014,4cyclictest201rcuc/109:08:551
18101992012,5cyclictest21-21ksoftirqd/107:32:141
18101992012,5cyclictest0-21swapper/108:42:121
18101992012,5cyclictest0-21swapper/108:42:121
18101992012,5cyclictest0-21swapper/108:42:121
18100992014,4cyclictest766-1kworker/0:2H09:01:510
18100992014,4cyclictest766-1kworker/0:2H09:01:510
1810399191,12cyclictest0-21swapper/308:32:123
18103991910,6cyclictest24642sleep307:57:213
18103991910,6cyclictest24642sleep307:57:213
18103991910,6cyclictest24642sleep307:57:213
18102991911,6cyclictest26119-21cat09:01:522
18102991911,6cyclictest26119-21cat09:01:522
1810299191,15cyclictest3667-21cut08:02:042
1810299191,15cyclictest3667-21cut08:02:042
1810199199,9cyclictest23509-21find07:27:111
1810199197,4cyclictest21-21ksoftirqd/107:42:031
1810199197,4cyclictest21-21ksoftirqd/107:42:031
1810199193,6cyclictest21-21ksoftirqd/108:02:141
1810199193,6cyclictest21-21ksoftirqd/108:02:141
1810099191,7cyclictest23180-21ntp_kernel_err08:52:080
1810099191,7cyclictest23180-21ntp_kernel_err08:52:080
1810099191,7cyclictest23180-21ntp_kernel_err08:52:080
18100991914,3cyclictest766-1kworker/0:2H08:47:030
18100991914,3cyclictest766-1kworker/0:2H08:47:030
1810099191,10cyclictest19694-21grep07:17:140
1810099191,10cyclictest19694-21grep07:17:140
1810399181,13cyclictest0-21swapper/307:47:073
1810399181,13cyclictest0-21swapper/307:47:073
1810299188,8cyclictest27-21ksoftirqd/208:12:162
1810299188,8cyclictest27-21ksoftirqd/208:12:162
1810299186,6cyclictest73-21kswapd009:02:202
1810299186,6cyclictest73-21kswapd009:02:202
1810299185,10cyclictest30359-21fschecks_count07:47:042
1810299185,10cyclictest30359-21fschecks_count07:47:042
18100991812,4cyclictest0-21swapper/007:27:050
110512180,2sleep3321rcuc/308:21:573
110512180,2sleep3321rcuc/308:21:573
1810299179,7cyclictest23918-21seq08:54:012
1810299179,7cyclictest23918-21seq08:54:012
1810299179,7cyclictest23918-21seq08:54:012
1810299172,13cyclictest695-21runrttasks08:27:502
1810299172,13cyclictest695-21runrttasks08:27:502
1810299171,13cyclictest26071-21cron07:36:502
1810299171,13cyclictest10428-21/usr/sbin/munin08:17:162
1810299171,13cyclictest10428-21/usr/sbin/munin08:17:162
1810099171,7cyclictest25040-21cut07:32:070
287502160,4sleep30-21swapper/309:07:073
287502160,4sleep30-21swapper/309:07:073
1810399161,10cyclictest0-21swapper/308:07:163
1810299161,12cyclictest28316-21sort09:07:032
1810299161,12cyclictest28316-21sort09:07:032
1810299161,12cyclictest23642-21sed07:27:132
1810399151,9cyclictest0-21swapper/308:02:063
1810399151,9cyclictest0-21swapper/308:02:063
1810399151,9cyclictest0-21swapper/307:52:143
1810399151,9cyclictest0-21swapper/307:52:143
1810399151,9cyclictest0-21swapper/307:22:053
1810399151,9cyclictest0-21swapper/307:22:053
1810399151,11cyclictest24805-21chrt07:32:043
18103991510,3cyclictest199882chrt08:42:233
18103991510,3cyclictest199882chrt08:42:233
18103991510,3cyclictest199882chrt08:42:233
278412141,3sleep30-21swapper/307:39:533
278412141,3sleep30-21swapper/307:39:533
1810399149,3cyclictest171212sleep308:37:053
1810399149,3cyclictest171212sleep308:37:053
1810399148,4cyclictest33-21ksoftirqd/308:12:173
1810399148,4cyclictest33-21ksoftirqd/308:12:173
1810399138,3cyclictest297192chrt07:44:313
1810399138,3cyclictest297192chrt07:44:313
1810399138,3cyclictest222042chrt08:50:273
1810399138,3cyclictest222042chrt08:50:273
1810399131,9cyclictest12345-21chrt08:22:173
1810399131,9cyclictest12345-21chrt08:22:173
1810399131,10cyclictest0-21swapper/307:17:043
1810399131,10cyclictest0-21swapper/307:17:043
1810399122,8cyclictest0-21swapper/308:56:513
1810399122,8cyclictest0-21swapper/308:56:513
1810399122,8cyclictest0-21swapper/308:56:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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