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2026-04-11 - 22:28
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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 792 highest latencies:
System rack4slot1.osadl.org (updated Sat Apr 11, 2026 09:36:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
715121480,3sleep10-21swapper/107:12:181
2434321130,3sleep224339-21find07:57:162
2434321130,3sleep224339-21find07:57:162
2434321130,3sleep224339-21find07:57:162
1682321040,2sleep20-21swapper/209:02:172
1682321040,2sleep20-21swapper/209:02:172
1103621000,2sleep30-21swapper/307:22:163
1103621000,2sleep30-21swapper/307:22:163
281832970,2sleep30-21swapper/308:07:183
281832970,2sleep30-21swapper/308:07:183
186632960,2sleep10-21swapper/107:42:161
186632960,2sleep10-21swapper/107:42:161
82152930,2sleep20-21swapper/209:32:162
82152930,2sleep20-21swapper/209:32:162
148632900,1sleep012-21ksoftirqd/008:57:170
148632900,1sleep012-21ksoftirqd/008:57:170
84332650,3sleep00-21swapper/007:17:070
84332650,3sleep00-21swapper/007:17:070
84332650,3sleep00-21swapper/007:17:070
74132580,2sleep07418-21fschecks_time09:32:060
74132580,2sleep07418-21fschecks_time09:32:060
296592560,1sleep029700-21bingrep08:12:110
162152560,2sleep00-21swapper/009:02:070
162152560,2sleep00-21swapper/009:02:070
129232560,2sleep20-21swapper/207:27:182
63552540,2sleep30-21swapper/309:31:163
63552540,2sleep30-21swapper/309:31:163
261432520,2chrt0-21swapper/209:17:162
261432520,2chrt0-21swapper/209:17:162
749199431,35cyclictest9051-21find07:17:161
749199431,35cyclictest9051-21find07:17:161
749199431,35cyclictest9051-21find07:17:161
7490994318,8cyclictest12907-21find07:27:170
72672430,3sleep30-21swapper/309:32:053
72672430,3sleep30-21swapper/309:32:053
7492994018,11cyclictest695-21runrttasks08:37:182
7492994018,11cyclictest695-21runrttasks08:37:182
200792380,2sleep220177-21rm09:12:072
200792380,2sleep220177-21rm09:12:072
7490993722,12cyclictest26267-21grep08:02:180
7490993722,12cyclictest26267-21grep08:02:180
284482370,3chrt0-21swapper/108:07:201
284482370,3chrt0-21swapper/108:07:201
121332370,2sleep012221-21fschecks_count08:52:060
121332370,2sleep012221-21fschecks_count08:52:060
7492993417,6cyclictest19430-21diskmemload09:27:162
7492993417,6cyclictest19430-21diskmemload09:27:162
749199341,3cyclictest0-21swapper/108:37:181
749199341,3cyclictest0-21swapper/108:37:181
7491993215,8cyclictest24346-21grep07:57:181
7491993215,8cyclictest24346-21grep07:57:181
7491993215,8cyclictest24346-21grep07:57:181
286282320,2sleep10-21swapper/109:20:051
286282320,2sleep10-21swapper/109:20:051
7491993015,13cyclictest8218-21ssh09:32:171
7491993015,13cyclictest8218-21ssh09:32:171
68692274,16sleep06915-21ps07:12:130
65632271,18sleep30-21swapper/307:12:083
7490992615,9cyclictest3487-21find09:27:160
7490992615,9cyclictest3487-21find09:27:160
749099261,10cyclictest131rcu_preempt08:07:180
749099261,10cyclictest131rcu_preempt08:07:180
7492992513,10cyclictest8613-21irqstats08:42:082
7492992513,10cyclictest8613-21irqstats08:42:082
67832253,14sleep25909-21ls07:12:112
209172250,4sleep00-21swapper/009:12:160
209172250,4sleep00-21swapper/009:12:160
749299241,20cyclictest19594-21find07:47:042
749199241,9cyclictest30078-21find08:12:181
749099244,7cyclictest73-21kswapd008:37:180
749099244,7cyclictest73-21kswapd008:37:180
7490992419,3cyclictest3559-21grep08:27:160
7490992419,3cyclictest3559-21grep08:27:160
7490992418,3cyclictest22961-1kworker/0:2H07:36:530
749299238,7cyclictest27-21ksoftirqd/208:07:192
749299238,7cyclictest27-21ksoftirqd/208:07:192
749099239,12cyclictest0-21swapper/008:22:180
749099239,12cyclictest0-21swapper/008:22:180
7492992213,8cyclictest30488-21sshd08:13:432
749199223,2cyclictest0-21swapper/108:17:061
749199223,2cyclictest0-21swapper/108:17:061
749199223,2cyclictest0-21swapper/108:17:061
749199222,18cyclictest4886-21missed_timers08:32:091
749199222,18cyclictest4886-21missed_timers08:32:091
749199221,18cyclictest14035-21/usr/sbin/munin08:57:051
749199221,18cyclictest14035-21/usr/sbin/munin08:57:051
749299214,4cyclictest27-21ksoftirqd/208:57:062
749299214,4cyclictest27-21ksoftirqd/208:57:062
749299213,3cyclictest131rcu_preempt09:24:442
749299213,3cyclictest131rcu_preempt09:24:442
749199216,4cyclictest131rcu_preempt07:22:161
749199216,4cyclictest131rcu_preempt07:22:161
749099213,2cyclictest131rcu_preempt08:32:180
749099213,2cyclictest131rcu_preempt08:32:180
749099211,16cyclictest18646-21mailstats09:07:150
749099211,16cyclictest18646-21mailstats09:07:150
749099211,16cyclictest18646-21mailstats09:07:150
215422210,2sleep30-21swapper/309:12:473
215422210,2sleep30-21swapper/309:12:473
749299205,3cyclictest0-21swapper/209:07:172
749299205,3cyclictest0-21swapper/209:07:172
749299205,3cyclictest0-21swapper/209:07:172
749299201,17cyclictest4675-21ls08:32:072
749299201,17cyclictest4675-21ls08:32:072
749199206,6cyclictest73-21kswapd008:02:181
749199206,6cyclictest73-21kswapd008:02:181
749199203,13cyclictest19628-21latency_hist09:11:591
749199203,13cyclictest19628-21latency_hist09:11:591
749199203,13cyclictest19628-21latency_hist09:11:591
749199201,17cyclictest31692-21unixbench_singl09:22:181
749199201,17cyclictest31692-21unixbench_singl09:22:181
749199201,17cyclictest16875-21grep07:37:171
749199201,17cyclictest16875-21grep07:37:171
749199201,17cyclictest14826-21grep07:32:171
749199201,16cyclictest20538-21find07:47:161
749099209,3cyclictest38750irq/56-eth009:25:310
749099209,3cyclictest38750irq/56-eth009:25:310
749099208,4cyclictest38750irq/56-eth009:21:280
749099208,4cyclictest38750irq/56-eth009:21:280
749099205,4cyclictest23547-21fschecks_count07:57:060
749099205,4cyclictest23547-21fschecks_count07:57:060
749099205,4cyclictest23547-21fschecks_count07:57:060
7490992013,5cyclictest10082-21latency_hist08:47:020
7490992013,5cyclictest10082-21latency_hist08:47:020
749099201,16cyclictest17431-21grep07:41:520
749099201,16cyclictest17431-21grep07:41:520
749399191,14cyclictest0-21swapper/307:42:083
749399191,14cyclictest0-21swapper/307:42:083
749399191,13cyclictest0-21swapper/309:02:043
749399191,13cyclictest0-21swapper/309:02:043
749399191,13cyclictest0-21swapper/308:36:593
749399191,13cyclictest0-21swapper/308:36:593
749399191,12cyclictest0-21swapper/307:27:193
749299199,8cyclictest14656-21tr07:32:142
749299192,4cyclictest73-21kswapd008:27:042
749299191,16cyclictest21649-21sort07:52:072
749299191,16cyclictest21649-21sort07:52:072
749299191,12cyclictest73-21kswapd008:52:172
749299191,12cyclictest73-21kswapd008:52:172
749299191,10cyclictest0-21swapper/208:27:062
749299191,10cyclictest0-21swapper/208:27:062
749199192,14cyclictest7038-21latency_hist09:32:001
749199192,14cyclictest7038-21latency_hist09:32:001
749099197,4cyclictest38750irq/56-eth007:52:140
749099197,4cyclictest38750irq/56-eth007:52:140
749399181,11cyclictest0-21swapper/307:52:193
749399181,11cyclictest0-21swapper/307:52:193
749299189,7cyclictest10267-21fschecks_time07:22:062
749299189,7cyclictest10267-21fschecks_time07:22:062
749299182,6cyclictest73-21kswapd008:17:062
749299182,6cyclictest73-21kswapd008:17:062
749299182,6cyclictest73-21kswapd008:17:062
749299181,9cyclictest10397-21fschecks_time08:47:062
749299181,9cyclictest10397-21fschecks_time08:47:062
7492991811,5cyclictest8677-21tail07:17:102
7492991811,5cyclictest8677-21tail07:17:102
7492991811,5cyclictest8677-21tail07:17:102
749199182,14cyclictest8494-21fschecks_time08:42:061
749199182,14cyclictest8494-21fschecks_time08:42:061
7491991812,4cyclictest20579-21uname09:12:131
7491991812,4cyclictest20579-21uname09:12:131
749199181,15cyclictest13762-21latency_hist07:31:591
749199181,15cyclictest13548-21runrttasks08:55:301
749199181,15cyclictest13548-21runrttasks08:55:301
211902181,3sleep00-21swapper/007:51:170
174052181,3sleep10-21swapper/109:05:391
174052181,3sleep10-21swapper/109:05:391
749399171,11cyclictest0-21swapper/309:07:063
749399171,11cyclictest0-21swapper/309:07:063
749399171,11cyclictest0-21swapper/309:07:063
749399171,10cyclictest0-21swapper/308:17:093
749399171,10cyclictest0-21swapper/308:17:093
749399171,10cyclictest0-21swapper/308:17:093
749299179,6cyclictest26197-21expr08:02:162
749299179,6cyclictest26197-21expr08:02:162
749299171,8cyclictest18825-21unixbench_multi07:42:172
749299171,8cyclictest18825-21unixbench_multi07:42:172
749199178,7cyclictest10382-21cut08:47:061
749199178,7cyclictest10382-21cut08:47:061
749199172,13cyclictest21810-21fschecks_time07:52:081
749199172,13cyclictest21810-21fschecks_time07:52:081
749199171,9cyclictest695-21runrttasks08:28:041
749199171,9cyclictest695-21runrttasks08:28:041
749199171,14cyclictest1455-21sort08:22:161
749199171,14cyclictest1455-21sort08:22:161
749099179,7cyclictest17410-21cron07:42:020
749099179,7cyclictest17410-21cron07:42:020
749099173,13cyclictest10507-21if_eth008:47:070
749099173,13cyclictest10507-21if_eth008:47:070
749099173,12cyclictest32677-21sendmail08:21:520
749099173,12cyclictest32677-21sendmail08:21:520
749099173,12cyclictest32677-21sendmail08:21:520
749099171,13cyclictest10649-21needreboot07:22:090
749099171,13cyclictest10649-21needreboot07:22:090
749399161,10cyclictest0-21swapper/308:52:153
749399161,10cyclictest0-21swapper/308:52:153
7493991610,4cyclictest239082sleep307:57:093
7493991610,4cyclictest239082sleep307:57:093
7493991610,4cyclictest239082sleep307:57:093
749299161,8cyclictest16047-21perl07:37:072
749299161,8cyclictest16047-21perl07:37:072
749399151,9cyclictest0-21swapper/308:22:063
749399151,9cyclictest0-21swapper/308:22:063
749399151,9cyclictest0-21swapper/307:17:093
749399151,9cyclictest0-21swapper/307:17:093
749399151,9cyclictest0-21swapper/307:17:093
749299151,7cyclictest1155-21/usr/sbin/munin08:22:122
749399149,3cyclictest318562sleep309:22:283
749399149,3cyclictest318562sleep309:22:283
749399141,8cyclictest0-21swapper/308:57:043
749399141,8cyclictest0-21swapper/308:57:043
749399141,8cyclictest0-21swapper/308:47:173
749399141,8cyclictest0-21swapper/308:47:173
749399141,8cyclictest0-21swapper/308:37:193
749399141,8cyclictest0-21swapper/308:37:193
749399139,3cyclictest266922chrt08:04:013
749399139,3cyclictest266922chrt08:04:013
749399138,3cyclictest97262chrt08:45:093
749399138,3cyclictest97262chrt08:45:093
749399131,10cyclictest0-21swapper/309:17:083
749399131,10cyclictest0-21swapper/309:17:083
749399128,3cyclictest37592chrt08:28:013
749399128,3cyclictest37592chrt08:28:013
749399123,7cyclictest0-21swapper/307:37:063
749399123,7cyclictest0-21swapper/307:37:063
749399121,9cyclictest30599-21chrt08:14:543
749399121,9cyclictest20903-21chrt07:48:013
749399113,6cyclictest29616-1kworker/3:1H07:32:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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