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2026-04-10 - 01:56
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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 21:11:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2850921520,2sleep00-21swapper/019:22:040
2850921520,2sleep00-21swapper/019:22:040
2850921520,2sleep00-21swapper/019:22:040
2508721190,3chrt0-21swapper/119:12:071
2508721190,3chrt0-21swapper/119:12:071
2671821070,3chrt0-21swapper/220:42:042
2671821070,3chrt0-21swapper/220:42:042
456921020,1sleep012-21ksoftirqd/019:42:140
456921020,1sleep012-21ksoftirqd/019:42:140
2700921010,2sleep20-21swapper/219:17:072
2700921010,2sleep20-21swapper/219:17:072
7422950,2sleep20-21swapper/220:57:162
7422950,2sleep20-21swapper/220:57:162
274872910,1sleep012-21ksoftirqd/020:42:150
274872910,1sleep012-21ksoftirqd/020:42:150
251882740,4sleep00-21swapper/019:12:110
251882740,4sleep00-21swapper/019:12:110
131892600,2sleep30-21swapper/320:07:003
131892600,2sleep30-21swapper/320:07:003
115992540,3sleep20-21swapper/220:02:052
115992540,3sleep20-21swapper/220:02:052
325792520,2sleep132196-21/usr/sbin/munin20:57:061
325792520,2sleep132196-21/usr/sbin/munin20:57:061
33892490,3sleep30-21swapper/321:06:533
33892490,3sleep30-21swapper/321:06:533
33892490,3sleep30-21swapper/321:06:533
190772490,3sleep30-21swapper/320:22:043
190772490,3sleep30-21swapper/320:22:043
257912450,2chrt0-21swapper/020:37:160
257912450,2chrt0-21swapper/020:37:160
257912450,2chrt0-21swapper/020:37:160
118142450,3sleep00-21swapper/020:02:070
118142450,3sleep00-21swapper/020:02:070
40022430,2sleep30-21swapper/321:07:063
40022430,2sleep30-21swapper/321:07:063
100672420,3sleep30-21swapper/319:57:123
100672420,3sleep30-21swapper/319:57:123
283122410,3sleep30-21swapper/319:21:583
283122410,3sleep30-21swapper/319:21:583
307282370,3sleep30-21swapper/320:52:063
307282370,3sleep30-21swapper/320:52:063
14842350,3sleep30-21swapper/319:36:533
45642330,3sleep20-21swapper/221:07:132
45642330,3sleep20-21swapper/221:07:132
252562315,16sleep224270-21ls19:12:132
252562315,16sleep224270-21ls19:12:132
25812993023,5cyclictest0-21swapper/320:42:143
25812993023,5cyclictest0-21swapper/320:42:143
232712280,3sleep30-21swapper/320:32:093
232712280,3sleep30-21swapper/320:32:093
25807992713,3cyclictest12-21ksoftirqd/020:52:160
25807992713,3cyclictest12-21ksoftirqd/020:52:160
245022272,18sleep30-21swapper/319:12:023
245022272,18sleep30-21swapper/319:12:023
290822260,4sleep229076-21ntp_states20:47:112
290822260,4sleep229076-21ntp_states20:47:112
25808992618,6cyclictest73-21kswapd020:17:151
25808992618,6cyclictest73-21kswapd020:17:151
2580999244,12cyclictest1216-21kworker/2:119:37:142
2580999244,12cyclictest1216-21kworker/2:119:37:142
25807992413,3cyclictest12-21ksoftirqd/019:37:150
25807992413,3cyclictest12-21ksoftirqd/019:37:150
2580999231,5cyclictest131rcu_preempt20:52:162
2580999231,5cyclictest131rcu_preempt20:52:162
2580999231,3cyclictest131rcu_preempt19:32:042
2580899231,4cyclictest0-21swapper/119:37:141
2580899231,4cyclictest0-21swapper/119:37:141
25808992312,9cyclictest0-21swapper/120:36:551
25808992312,9cyclictest0-21swapper/120:36:551
25807992315,6cyclictest5322-21ssh21:11:520
25807992315,6cyclictest5322-21ssh21:11:520
2580799230,6cyclictest6506-21find19:47:150
2580799230,6cyclictest6506-21find19:47:150
2580799230,4cyclictest8389-21find19:52:130
2580999222,2cyclictest131rcu_preempt20:32:152
2580999222,2cyclictest131rcu_preempt20:32:152
25809992215,5cyclictest1686-21/usr/sbin/munin21:02:042
25809992215,5cyclictest1686-21/usr/sbin/munin21:02:042
25809992215,5cyclictest1686-21/usr/sbin/munin21:02:042
2580999221,3cyclictest131rcu_preempt19:22:032
2580999221,3cyclictest131rcu_preempt19:22:032
2580999221,3cyclictest131rcu_preempt19:22:032
25808992210,9cyclictest11255-21/usr/sbin/munin20:02:051
25808992210,9cyclictest11255-21/usr/sbin/munin20:02:051
2580799221,18cyclictest2675-21ls21:02:150
2580799221,18cyclictest2675-21ls21:02:150
2580799221,18cyclictest2675-21ls21:02:150
2580999210,3cyclictest131rcu_preempt19:27:032
2580999210,3cyclictest131rcu_preempt19:27:032
2580899212,16cyclictest29364-21find20:47:161
2580899212,16cyclictest29364-21find20:47:161
2580799211,17cyclictest16801-21ls20:16:560
25807992110,9cyclictest11012-21chrt20:01:510
25807992110,9cyclictest11012-21chrt20:01:510
2581299204,10cyclictest0-21swapper/320:57:163
2581299204,10cyclictest0-21swapper/320:57:163
25809992014,5cyclictest9991-21ntpq19:57:102
25809992014,5cyclictest9991-21ntpq19:57:102
2580999201,2cyclictest131rcu_preempt20:22:162
2580999201,2cyclictest131rcu_preempt20:22:162
2580999200,2cyclictest131rcu_preempt19:52:132
2580899201,14cyclictest32026-21ls20:56:531
2580899201,14cyclictest32026-21ls20:56:531
25807992012,6cyclictest17528-21strings20:17:080
25807992012,6cyclictest17528-21strings20:17:080
2580799201,16cyclictest23631-21threads20:32:140
2580799201,16cyclictest23631-21threads20:32:140
2580999191,3cyclictest131rcu_preempt20:27:042
2580999191,3cyclictest131rcu_preempt19:42:142
2580999191,3cyclictest131rcu_preempt19:42:142
25808991912,5cyclictest4155-21/usr/sbin/munin21:07:071
25808991912,5cyclictest4155-21/usr/sbin/munin21:07:071
2580899191,16cyclictest4061-21ls19:42:061
2580899191,16cyclictest4061-21ls19:42:061
2580799197,8cyclictest73-21kswapd019:17:140
2580799197,8cyclictest73-21kswapd019:17:140
2580799191,10cyclictest22014-21unixbench_singl20:27:180
25807991910,8cyclictest0-21swapper/020:22:120
25807991910,8cyclictest0-21swapper/020:22:120
2581299181,12cyclictest0-21swapper/320:17:063
2581299181,12cyclictest0-21swapper/320:17:063
2581299181,12cyclictest0-21swapper/319:37:043
2581299181,12cyclictest0-21swapper/319:37:043
2580999180,12cyclictest6463-21switchtime19:47:142
2580999180,12cyclictest6463-21switchtime19:47:142
2580899187,9cyclictest28146-21systemctl19:21:521
2580899187,9cyclictest28146-21systemctl19:21:521
25808991811,5cyclictest26709-21fschecks_time20:42:041
25808991811,5cyclictest26709-21fschecks_time20:42:041
2580799183,6cyclictest131rcu_preempt19:27:030
2580799183,6cyclictest131rcu_preempt19:27:030
2580799181,15cyclictest1445-21grep21:01:510
2580799181,15cyclictest1445-21grep21:01:510
212972180,4sleep10-21swapper/120:27:081
2581299171,13cyclictest0-21swapper/319:22:023
2581299171,13cyclictest0-21swapper/319:22:023
2581299171,13cyclictest0-21swapper/319:22:023
2580999171,14cyclictest16938-21find20:17:032
2580999171,14cyclictest16938-21find20:17:032
2580899174,10cyclictest25375-21grep20:37:121
2580899174,10cyclictest25375-21grep20:37:121
2580899174,10cyclictest25375-21grep20:37:121
2580899172,2cyclictest131rcu_preempt20:22:141
2580899172,2cyclictest131rcu_preempt20:22:141
2580899171,14cyclictest2482-21wc21:02:131
2580899171,14cyclictest2482-21wc21:02:131
2580899171,14cyclictest2482-21wc21:02:131
2580899171,13cyclictest30955-21tr19:27:081
2580899171,13cyclictest30955-21tr19:27:081
2580799178,7cyclictest13629-21memory20:07:040
2580799178,7cyclictest13629-21memory20:07:040
2580799175,10cyclictest29222-21sendmail_mailst20:47:140
2580799175,10cyclictest29222-21sendmail_mailst20:47:140
2580799171,8cyclictest32562-21irqstats19:32:070
2581299164,9cyclictest0-21swapper/320:27:163
2581299162,11cyclictest0-21swapper/319:42:153
2581299162,11cyclictest0-21swapper/319:42:153
2580999167,7cyclictest25056-21cat20:37:062
2580999167,7cyclictest25056-21cat20:37:062
2580999167,7cyclictest25056-21cat20:37:062
25809991611,4cyclictest14073-21xargs20:07:122
25809991611,4cyclictest14073-21xargs20:07:122
2580999161,13cyclictest15319-21fschecks_time20:12:022
2580899161,8cyclictest5607-21/usr/sbin/munin19:47:041
2580899161,8cyclictest5607-21/usr/sbin/munin19:47:041
2580899161,13cyclictest32373-21fschecks_count19:32:051
2580899161,12cyclictest15077-21cpuspeed20:12:011
2580899161,12cyclictest13593-21latency20:07:041
2580899161,12cyclictest13593-21latency20:07:041
2580899161,12cyclictest11002-21sendmail20:01:511
2580899161,12cyclictest11002-21sendmail20:01:511
2580899160,13cyclictest8389-21find19:52:131
2580899160,12cyclictest28449-21cpuspeed19:22:021
2580899160,12cyclictest28449-21cpuspeed19:22:021
2580899160,12cyclictest28449-21cpuspeed19:22:021
156862150,4sleep30-21swapper/320:12:073
2581299143,9cyclictest0-21swapper/320:41:513
2581299143,9cyclictest0-21swapper/320:41:513
2581299143,9cyclictest0-21swapper/320:41:513
2581299141,10cyclictest7508-21chrt19:52:013
2581299141,10cyclictest28509-21chrt20:47:043
2581299141,10cyclictest28509-21chrt20:47:043
2581299131,9cyclictest30969-21chrt19:27:093
2581299131,9cyclictest30969-21chrt19:27:093
2581299131,9cyclictest13630-21chrt20:07:043
2581299131,9cyclictest13630-21chrt20:07:043
2581299131,7cyclictest0-21swapper/319:47:043
2581299131,7cyclictest0-21swapper/319:47:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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