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2025-07-03 - 09:13
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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 Wed Jul 02, 2025 20:11:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
103592151720,6sleep110353-21find19:12:371
103592151720,6sleep110353-21find19:12:371
1065123810,1sleep012-21ksoftirqd/019:12:400
1065123810,1sleep012-21ksoftirqd/019:12:400
93292470,3sleep29138-21ls19:12:132
93292470,3sleep29138-21ls19:12:132
294572430,3sleep30-21swapper/320:07:123
10686994316,20cyclictest21-21ksoftirqd/119:37:191
1068799424,5cyclictest131rcu_preempt19:42:202
1068799424,5cyclictest131rcu_preempt19:42:202
1068799343,25cyclictest11437-21apt-get19:17:162
1068799343,25cyclictest11437-21apt-get19:17:162
134162330,1sleep010710-1kworker/u9:319:22:170
134162330,1sleep010710-1kworker/u9:319:22:170
1068599292,16cyclictest691-21sendmail-mta19:47:190
1068599292,16cyclictest691-21sendmail-mta19:47:190
225752270,3sleep30-21swapper/319:43:533
225752270,3sleep30-21swapper/319:43:533
1068899264,16cyclictest13441-21chrt19:22:193
1068899264,16cyclictest13441-21chrt19:22:193
1068599263,17cyclictest5142-21munin-node19:32:200
1068599263,17cyclictest5142-21munin-node19:32:200
138092250,2sleep20-21swapper/219:22:222
138092250,2sleep20-21swapper/219:22:222
1068799234,3cyclictest131rcu_preempt19:47:332
1068799234,3cyclictest131rcu_preempt19:47:332
10686992313,8cyclictest27842-21fschecks_time20:02:221
1068699231,17cyclictest15424-21taskset19:27:191
1068699231,17cyclictest15424-21taskset19:27:191
10685992316,5cyclictest10710-1kworker/u9:319:17:160
10685992316,5cyclictest10710-1kworker/u9:319:17:160
1068899225,12cyclictest0-21swapper/319:27:193
1068899225,12cyclictest0-21swapper/319:27:193
1068699221,11cyclictest15327-21latency_hist19:27:121
1068699221,11cyclictest15327-21latency_hist19:27:121
10686992210,10cyclictest21-21ksoftirqd/119:17:201
10686992210,10cyclictest21-21ksoftirqd/119:17:201
1068599219,10cyclictest20914-21cron19:42:050
1068599216,13cyclictest15980-21needreboot19:27:250
1068599216,13cyclictest15980-21needreboot19:27:250
10686992013,5cyclictest21-21ksoftirqd/120:07:331
10686992013,5cyclictest21-21ksoftirqd/120:07:331
10686992011,7cyclictest22714-21systemd-journal19:52:071
10686992011,7cyclictest22714-21systemd-journal19:52:071
10686992011,6cyclictest0-21swapper/120:02:131
10686992011,6cyclictest0-21swapper/120:02:131
1068599207,8cyclictest30050irq/49-vc409:15:180
1068599207,8cyclictest30050irq/49-vc409:15:180
254232191,3sleep10-21swapper/119:56:551
254232191,3sleep10-21swapper/119:56:551
1068799192,15cyclictest29533-21apt-get20:07:202
1068799192,15cyclictest29533-21apt-get20:07:202
1068599191,7cyclictest28824-21sed20:02:340
1068899182,10cyclictest0-21swapper/319:47:203
1068899182,10cyclictest0-21swapper/319:47:203
10688991812,4cyclictest0-21swapper/319:57:173
10688991812,4cyclictest0-21swapper/319:57:173
1068799187,9cyclictest19898-21ntp_states19:37:272
10687991811,5cyclictest17571-21cut19:32:222
10687991811,5cyclictest17571-21cut19:32:222
10687991811,4cyclictest26560-21cat19:57:252
10687991811,4cyclictest26560-21cat19:57:252
10686991811,4cyclictest21-21ksoftirqd/119:34:441
10686991811,4cyclictest21-21ksoftirqd/119:34:441
1068599181,8cyclictest25675-21latency_hist19:57:140
1068599181,8cyclictest25675-21latency_hist19:57:140
1068599181,14cyclictest26665-21find19:57:270
1068599181,14cyclictest26665-21find19:57:270
252372171,3sleep20-21swapper/219:54:392
252372171,3sleep20-21swapper/219:54:392
1068899172,10cyclictest0-21swapper/319:32:203
1068899172,10cyclictest0-21swapper/319:32:203
10688991712,4cyclictest321rcuc/319:37:223
1068799178,7cyclictest29290-21wc20:07:052
1068699170,9cyclictest21983-21runrttasks19:43:441
1068699170,9cyclictest21983-21runrttasks19:43:441
1068599173,11cyclictest0-21swapper/020:07:200
1068599173,11cyclictest0-21swapper/020:07:200
1068899162,10cyclictest0-21swapper/319:17:163
1068899162,10cyclictest0-21swapper/319:17:163
1068899161,11cyclictest29538-21chrt20:07:213
1068899161,11cyclictest29538-21chrt20:07:213
1068799161,12cyclictest15591-21sort19:27:212
1068799161,12cyclictest15591-21sort19:27:212
93822153,7sleep30-21swapper/319:12:183
93822153,7sleep30-21swapper/319:12:183
1068899151,8cyclictest0-21swapper/319:57:133
1068899151,8cyclictest0-21swapper/319:57:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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