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2025-12-18 - 14:27
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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 Wed Dec 17, 2025 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1819521030,2sleep3321rcuc/319:45:003
1819521030,2sleep3321rcuc/319:45:003
237842870,3sleep30-21swapper/322:55:143
237842870,3sleep30-21swapper/322:55:143
237842870,3sleep30-21swapper/322:55:143
145622770,3sleep30-21swapper/321:00:223
145622770,3sleep30-21swapper/321:00:223
134642700,2sleep113467-21unixbench-2d22:25:231
134642700,2sleep113467-21unixbench-2d22:25:231
134152660,9sleep012-21ksoftirqd/023:55:150
134152660,9sleep012-21ksoftirqd/023:55:150
134152660,9sleep012-21ksoftirqd/023:55:150
325922580,5sleep132590-21grep21:50:191
325922580,5sleep132590-21grep21:50:191
145422560,4sleep10-21swapper/119:35:011
145422560,4sleep10-21swapper/119:35:011
220082550,3sleep30-21swapper/300:20:013
220082550,3sleep30-21swapper/300:20:013
81402530,2sleep28184-21fschecks_count20:45:112
81402530,2sleep28184-21fschecks_count20:45:112
102462520,4sleep30-21swapper/323:45:213
102462520,4sleep30-21swapper/323:45:213
90082480,3sleep30-21swapper/319:20:013
90082480,3sleep30-21swapper/319:20:013
61362470,4sleep10-21swapper/119:10:181
61362470,4sleep10-21swapper/119:10:181
297802470,2sleep227-21ksoftirqd/223:10:202
297802470,2sleep227-21ksoftirqd/223:10:202
120052420,3sleep30-21swapper/323:50:193
120052420,3sleep30-21swapper/323:50:193
72322410,3sleep00-21swapper/019:15:030
72322410,3sleep00-21swapper/019:15:030
207782410,3sleep30-21swapper/322:45:223
241222390,2sleep024044-21/usr/sbin/munin00:25:130
61922370,2sleep26211-21/usr/sbin/munin19:10:202
61922370,2sleep26211-21/usr/sbin/munin19:10:202
271652370,3chrt0-21swapper/023:05:120
271652370,3chrt0-21swapper/023:05:120
26512370,3sleep10-21swapper/123:25:181
210322370,2sleep10-21swapper/119:50:201
210322370,2sleep10-21swapper/119:50:201
13232350,2sleep30-21swapper/323:20:223
13232350,2sleep30-21swapper/323:20:223
91242330,2sleep19226-21memory22:15:151
91242330,2sleep19226-21memory22:15:151
41602330,2sleep30-21swapper/323:30:143
215472330,2sleep221653-21df22:50:122
215472330,2sleep221653-21df22:50:122
167922330,2sleep116826-21fschecks_count00:05:131
167922330,2sleep116826-21fschecks_count00:05:131
116792300,4sleep30-21swapper/319:25:193
6783992815,4cyclictest21-21ksoftirqd/100:30:001
220302270,4chrt0-21swapper/221:20:222
101992270,10sleep333-21ksoftirqd/319:20:213
101992270,10sleep333-21ksoftirqd/319:20:213
6784992617,6cyclictest11810-21df_inode20:55:132
6784992617,6cyclictest11810-21df_inode20:55:132
51812260,9sleep333-21ksoftirqd/320:35:193
51812260,9sleep333-21ksoftirqd/320:35:193
51812260,9sleep333-21ksoftirqd/320:35:193
250802250,2chrt0-21swapper/120:00:211
213302250,10sleep012-21ksoftirqd/000:15:200
213302250,10sleep012-21ksoftirqd/000:15:200
678399244,3cyclictest131rcu_preempt23:04:441
678399244,3cyclictest131rcu_preempt23:04:441
678399243,4cyclictest131rcu_preempt21:34:571
678399242,3cyclictest131rcu_preempt00:40:041
678399242,3cyclictest131rcu_preempt00:40:041
678399242,3cyclictest131rcu_preempt00:40:041
6784992310,10cyclictest2943-21if_eth020:30:152
678499230,19cyclictest20825-21ls19:50:172
678499230,19cyclictest20825-21ls19:50:172
678399233,4cyclictest131rcu_preempt21:20:181
678399232,3cyclictest131rcu_preempt21:15:051
678399231,4cyclictest131rcu_preempt23:15:011
678399231,4cyclictest131rcu_preempt23:15:011
6782992316,5cyclictest535-21snmpd20:56:030
6782992316,5cyclictest535-21snmpd20:56:030
678299231,13cyclictest12323-21unixbench_multi23:50:210
678299231,13cyclictest12323-21unixbench_multi23:50:210
678299231,12cyclictest777-21needreboot23:20:170
678299231,12cyclictest777-21needreboot23:20:170
678499221,18cyclictest32018-21ls21:50:132
678499221,18cyclictest32018-21ls21:50:132
678499221,17cyclictest16992-21cron21:10:002
678499221,17cyclictest16992-21cron21:10:002
678499221,15cyclictest12619-21cut22:25:142
678499221,15cyclictest12619-21cut22:25:142
678399222,4cyclictest131rcu_preempt20:30:041
678399222,4cyclictest131rcu_preempt20:30:041
678299221,18cyclictest16954-21ls19:40:150
678299221,18cyclictest16954-21ls19:40:150
678299221,17cyclictest28509-21cut21:40:150
678299221,17cyclictest28509-21cut21:40:150
678299221,12cyclictest22830-21head00:20:170
678299221,12cyclictest22830-21head00:20:170
678299221,12cyclictest17149-21unixbench-2d22:35:230
678299221,12cyclictest17149-21unixbench-2d22:35:230
678299221,12cyclictest17149-21unixbench-2d22:35:230
62122220,16sleep30-21swapper/319:10:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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