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2026-04-12 - 16:00
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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 Sun Apr 12, 2026 09:06:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2411927410,2sleep012-21ksoftirqd/007:12:200
2411927410,2sleep012-21ksoftirqd/007:12:200
2221321060,5sleep122207-21find08:32:201
295621030,3sleep20-21swapper/207:42:172
295621030,3sleep20-21swapper/207:42:172
1838121030,1sleep012-21ksoftirqd/008:22:180
1838121030,1sleep012-21ksoftirqd/008:22:180
49402970,4sleep14936-21find07:47:181
49402970,4sleep14936-21find07:47:181
164312920,3sleep216430-21grep08:17:172
164312920,3sleep216430-21grep08:17:172
164312920,3sleep216430-21grep08:17:172
156602710,3chrt0-21swapper/308:17:063
156602710,3chrt0-21swapper/308:17:063
156602710,3chrt0-21swapper/308:17:063
85012560,5sleep2261rcuc/207:57:122
85012560,5sleep2261rcuc/207:57:122
103082500,3sleep20-21swapper/208:02:102
103082500,3sleep20-21swapper/208:02:102
275052480,4sleep30-21swapper/307:22:123
275052480,4sleep30-21swapper/307:22:123
275052480,4sleep30-21swapper/307:22:123
95632410,2sleep00-21swapper/008:01:560
95632410,2sleep00-21swapper/008:01:560
64552400,3sleep26457-21cat07:52:092
64552400,3sleep26457-21cat07:52:092
323282390,3sleep30-21swapper/307:36:553
325402380,3sleep00-21swapper/009:01:580
325402380,3sleep00-21swapper/009:01:580
305852380,3chrt0-21swapper/108:56:561
305852380,3chrt0-21swapper/108:56:561
209542370,4sleep220959-21cron08:31:532
97052360,3chrt0-21swapper/308:02:033
97052360,3chrt0-21swapper/308:02:033
151962350,2sleep30-21swapper/308:16:543
325232340,2sleep232644-21df07:37:072
325232340,2sleep232644-21df07:37:072
146522340,3sleep214656-21sed08:12:192
275802330,4sleep10-21swapper/107:22:141
275802330,4sleep10-21swapper/107:22:141
275802330,4sleep10-21swapper/107:22:141
192402310,3sleep20-21swapper/208:27:032
192402310,3sleep20-21swapper/208:27:032
145102280,6sleep09736-1kworker/0:1H08:12:170
314072270,4sleep131403-21ntp_kernel_pll_08:57:121
314072270,4sleep131403-21ntp_kernel_pll_08:57:121
2425199278,4cyclictest131rcu_preempt08:47:172
2425199278,4cyclictest131rcu_preempt08:47:172
2425099259,6cyclictest18380-21runrttasks08:22:181
2425099259,6cyclictest18380-21runrttasks08:22:181
229572254,14sleep30-21swapper/307:12:043
229572254,14sleep30-21swapper/307:12:043
2424999241,12cyclictest131rcu_preempt08:32:200
24251992316,5cyclictest317212sleep208:57:182
24251992316,5cyclictest317212sleep208:57:182
24251992310,3cyclictest131rcu_preempt08:32:082
2425099231,19cyclictest32528-21find07:37:061
2425099231,19cyclictest32528-21find07:37:061
2424999231,20cyclictest73-21kswapd008:02:170
2424999231,20cyclictest73-21kswapd008:02:170
2424999231,19cyclictest23257-21cut08:37:070
2424999231,19cyclictest23257-21cut08:37:070
241802235,12sleep10-21swapper/107:12:221
241802235,12sleep10-21swapper/107:12:221
24252992213,4cyclictest0-21swapper/309:02:193
24252992213,4cyclictest0-21swapper/309:02:193
2425099228,5cyclictest73-21kswapd008:47:071
2425099228,5cyclictest73-21kswapd008:47:071
2425099221,3cyclictest0-21swapper/108:12:091
2425099221,19cyclictest32307-21ls07:36:541
2424999227,13cyclictest897-21ntp_kernel_err09:02:130
2424999227,13cyclictest897-21ntp_kernel_err09:02:130
2424999225,4cyclictest2956-21runrttasks07:42:160
2424999225,4cyclictest2956-21runrttasks07:42:160
24249992216,4cyclictest9736-1kworker/0:1H07:27:110
24249992216,4cyclictest9736-1kworker/0:1H07:27:110
24252992115,4cyclictest0-21swapper/308:57:193
24252992115,4cyclictest0-21swapper/308:57:193
24252992114,4cyclictest0-21swapper/307:47:183
24252992114,4cyclictest0-21swapper/307:47:183
24252992113,4cyclictest0-21swapper/308:27:163
24252992113,4cyclictest0-21swapper/307:17:143
24252992113,4cyclictest0-21swapper/307:17:143
24252992113,4cyclictest0-21swapper/307:17:143
2425199211,17cyclictest23220-21ls08:37:052
2425199211,17cyclictest23220-21ls08:37:052
2425199211,14cyclictest30520-21latency_hist08:56:582
2425199211,14cyclictest30520-21latency_hist08:56:582
24251992110,6cyclictest24698-21latency_hist07:16:562
24251992110,6cyclictest24698-21latency_hist07:16:562
2425099211,8cyclictest88962snmpd09:05:111
2425099211,8cyclictest88962snmpd09:05:111
2425099211,18cyclictest6461-21ls07:52:091
2425099211,18cyclictest6461-21ls07:52:091
2425099211,12cyclictest24796-21sort08:41:531
2425099211,12cyclictest24796-21sort08:41:531
2424999211,4cyclictest0-21swapper/008:52:180
2424999211,4cyclictest0-21swapper/008:52:180
24252992015,3cyclictest0-21swapper/308:52:163
24252992015,3cyclictest0-21swapper/308:52:163
24252992013,4cyclictest0-21swapper/308:47:173
24252992013,4cyclictest0-21swapper/308:47:173
24252992013,4cyclictest0-21swapper/307:42:163
24252992013,4cyclictest0-21swapper/307:42:163
2425099208,10cyclictest21-21ksoftirqd/108:27:061
2425099203,9cyclictest695-21runrttasks08:08:171
2425099203,9cyclictest695-21runrttasks08:08:171
2424999201,4cyclictest131rcu_preempt07:22:060
2424999201,4cyclictest131rcu_preempt07:22:060
2424999201,4cyclictest131rcu_preempt07:22:060
24252991914,3cyclictest0-21swapper/308:22:183
24252991914,3cyclictest0-21swapper/308:22:183
24252991913,4cyclictest0-21swapper/308:07:063
24252991913,4cyclictest0-21swapper/308:07:063
24252991913,3cyclictest0-21swapper/307:27:163
24252991913,3cyclictest0-21swapper/307:27:163
24252991912,4cyclictest0-21swapper/308:02:173
24252991912,4cyclictest0-21swapper/308:02:173
2425099191,9cyclictest25907-21timerwakeupswit07:17:161
2425099191,9cyclictest25907-21timerwakeupswit07:17:161
2425099191,9cyclictest25907-21timerwakeupswit07:17:161
2424999199,8cyclictest6002-21df_inode07:52:060
2424999199,8cyclictest6002-21df_inode07:52:060
2424999191,9cyclictest1942-21latency_hist07:42:010
2424999191,9cyclictest1942-21latency_hist07:42:010
24249991911,6cyclictest27055-21forks08:47:070
24249991911,6cyclictest27055-21forks08:47:070
24252991812,4cyclictest0-21swapper/308:42:073
24252991812,4cyclictest0-21swapper/308:42:073
24252991812,4cyclictest0-21swapper/308:37:063
24252991812,4cyclictest0-21swapper/308:37:063
24252991812,4cyclictest0-21swapper/307:52:063
24252991812,4cyclictest0-21swapper/307:52:063
24252991812,4cyclictest0-21swapper/307:37:183
24252991812,4cyclictest0-21swapper/307:37:183
24252991812,3cyclictest0-21swapper/308:32:083
2425199183,3cyclictest131rcu_preempt09:02:192
2425199183,3cyclictest131rcu_preempt09:02:192
24251991813,3cyclictest27-21ksoftirqd/208:42:152
24251991813,3cyclictest27-21ksoftirqd/208:42:152
24251991812,4cyclictest261rcuc/207:47:182
24251991812,4cyclictest261rcuc/207:47:182
2425199181,15cyclictest30380-21cron07:31:542
2425199181,15cyclictest30380-21cron07:31:542
2425199181,15cyclictest24888-21find07:17:042
2425199181,15cyclictest24888-21find07:17:042
2425199181,15cyclictest24888-21find07:17:042
2425199181,12cyclictest30652-21find07:32:042
2425099189,7cyclictest26007-21grep08:42:181
2425099189,7cyclictest26007-21grep08:42:181
2425099181,11cyclictest10181-21ls08:02:091
2425099181,11cyclictest10181-21ls08:02:091
2424999189,7cyclictest27527-21systemd-journal08:21:540
2424999189,7cyclictest27527-21systemd-journal08:21:540
2424999189,7cyclictest27527-21systemd-journal08:21:540
2424999187,9cyclictest25019-21grep07:17:050
2424999187,9cyclictest25019-21grep07:17:050
2424999187,9cyclictest25019-21grep07:17:050
2424999181,7cyclictest4610-21ntp_kernel_err07:47:120
2424999181,7cyclictest4610-21ntp_kernel_err07:47:120
2424999181,15cyclictest12605-21threads08:07:160
2424999181,15cyclictest12605-21threads08:07:160
24251991711,5cyclictest0-21swapper/208:07:172
24251991711,5cyclictest0-21swapper/208:07:172
2425199171,13cyclictest27421-21uname07:22:112
2425199171,13cyclictest27421-21uname07:22:112
2425199171,13cyclictest27421-21uname07:22:112
2425099177,8cyclictest8111-21fw_packets07:57:061
2425099177,8cyclictest8111-21fw_packets07:57:061
2425099173,2cyclictest131rcu_preempt08:17:171
2425099173,2cyclictest131rcu_preempt08:17:171
2425099173,2cyclictest131rcu_preempt08:17:171
2425099171,13cyclictest29063-21taskset07:27:071
2425099171,13cyclictest29063-21taskset07:27:071
2424999171,5cyclictest20957-21cron08:31:530
2424999171,14cyclictest9736-1kworker/0:1H07:32:060
2425099162,11cyclictest2071-21ls07:42:051
2425099162,11cyclictest2071-21ls07:42:051
2424999168,6cyclictest25109-21/usr/sbin/munin08:42:060
2424999168,6cyclictest25109-21/usr/sbin/munin08:42:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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