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2025-11-21 - 14:05
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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 rackcslot3.osadl.org (updated Fri Nov 21, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81720rcu_preempt29649-21latency_hist22:59:541
81720rcu_preempt13911-21df_abs23:30:081
81710rcu_preempt15164-21ssh21:31:261
81710rcu_preempt0-21swapper/020:30:160
81690rcu_preempt0-21swapper/021:11:350
81680rcu_preempt30884-21sh22:00:191
81680rcu_preempt23857-21sh23:48:541
81670rcu_preempt5539-21ssh21:15:071
81670rcu_preempt5485-21k10sensors19:10:191
81670rcu_preempt0-21swapper/122:48:461
81660rcu_preempt9087-21ntp_kernel_err21:20:171
81660rcu_preempt5392-21/usr/sbin/munin23:14:541
81660rcu_preempt0-21swapper/123:00:111
81660rcu_preempt0-21swapper/122:51:121
81660rcu_preempt0-21swapper/122:25:131
81660rcu_preempt0-21swapper/122:10:171
81660rcu_preempt0-21swapper/120:50:161
81660rcu_preempt0-21swapper/021:31:200
151450660irq/28-eth0-rx-41ktimersoftd/023:06:240
81650rcu_preempt6121-21idleruntime19:15:111
81650rcu_preempt4093-21sh22:10:520
81650rcu_preempt25645-21ssh21:50:281
81650rcu_preempt19337-21ssh21:40:070
81650rcu_preempt0-21swapper/122:05:451
81650rcu_preempt0-21swapper/100:39:101
81640rcu_preempt7946-21gzip19:20:161
81640rcu_preempt28626-21/usr/sbin/munin20:45:131
81640rcu_preempt24467-21ssh21:50:070
81640rcu_preempt1836-21sh23:07:151
81640rcu_preempt11613-21grep23:25:141
81640rcu_preempt0-21swapper/122:40:461
81640rcu_preempt0-21swapper/121:56:471
81640rcu_preempt0-21swapper/119:30:191
81640rcu_preempt0-21swapper/100:09:311
81630rcu_preempt1701-21sh00:07:340
81630rcu_preempt0-21swapper/121:35:521
81630rcu_preempt0-21swapper/121:29:451
81630rcu_preempt0-21swapper/100:16:541
81630rcu_preempt0-21swapper/022:25:130
81630rcu_preempt0-21swapper/000:23:550
81620rcu_preempt25078-21df_inode20:30:141
81620rcu_preempt0-21swapper/123:55:081
81620rcu_preempt0-21swapper/123:50:281
81620rcu_preempt0-21swapper/120:15:161
81620rcu_preempt0-21swapper/119:04:551
81620rcu_preempt0-21swapper/100:26:011
81620rcu_preempt0-21swapper/023:11:590
81620rcu_preempt0-21swapper/022:41:560
81620rcu_preempt0-21swapper/021:55:200
81620rcu_preempt0-21swapper/021:14:550
81610rcu_preempt3-21ksoftirqd/000:37:110
81610rcu_preempt0-21swapper/122:35:561
81610rcu_preempt0-21swapper/019:05:070
81600rcu_preempt3-21ksoftirqd/021:39:380
81600rcu_preempt3-21ksoftirqd/000:32:410
81600rcu_preempt0-21swapper/123:38:271
81600rcu_preempt0-21swapper/121:45:191
81600rcu_preempt0-21swapper/121:14:201
81600rcu_preempt0-21swapper/119:35:201
81600rcu_preempt0-21swapper/100:30:121
81600rcu_preempt0-21swapper/023:03:340
81600rcu_preempt0-21swapper/022:24:240
81590rcu_preempt3-21ksoftirqd/023:42:360
81590rcu_preempt2434-21diskmemload00:13:200
81590rcu_preempt0-21swapper/123:24:291
81590rcu_preempt0-21swapper/122:30:151
81590rcu_preempt0-21swapper/121:43:201
81590rcu_preempt0-21swapper/100:12:271
81590rcu_preempt0-21swapper/100:00:081
81590rcu_preempt0-21swapper/023:48:260
81580rcu_preempt7158-21ssh22:16:500
81580rcu_preempt12195-21ssh21:25:310
81580rcu_preempt10475-21ssh22:24:201
81580rcu_preempt0-21swapper/120:40:161
81580rcu_preempt0-21swapper/119:55:171
81580rcu_preempt0-21swapper/023:37:260
81580rcu_preempt0-21swapper/023:24:360
81580rcu_preempt0-21swapper/022:32:370
81580rcu_preempt0-21swapper/022:05:520
81580rcu_preempt0-21swapper/020:20:180
81570rcu_preempt8369-21/usr/sbin/munin19:25:111
81570rcu_preempt4445-21cyclictest22:49:480
81570rcu_preempt29013-21rm23:58:560
81570rcu_preempt25881-21rm22:51:220
81570rcu_preempt13066-21k10sensors19:40:140
81570rcu_preempt13066-21k10sensors19:40:140
81570rcu_preempt0-21swapper/123:43:081
81570rcu_preempt0-21swapper/120:58:481
81570rcu_preempt0-21swapper/120:35:401
81570rcu_preempt0-21swapper/120:25:191
81570rcu_preempt0-21swapper/120:05:181
81570rcu_preempt0-21swapper/021:00:130
81570rcu_preempt0-21swapper/020:40:130
81570rcu_preempt0-21swapper/019:25:070
81570rcu_preempt0-21swapper/000:00:450
81560rcu_preempt7957-21ssh23:19:531
81560rcu_preempt7116-21apt-get19:20:030
81560rcu_preempt2434-21diskmemload23:31:410
81560rcu_preempt0-21swapper/122:15:081
81560rcu_preempt0-21swapper/120:24:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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