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2025-11-21 - 04:11
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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 rack4slot4.osadl.org (updated Fri Nov 21, 2025 00:53:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71680rcu_preempt0-21swapper/223:59:012
71680rcu_preempt0-21swapper/223:59:012
71680rcu_preempt0-21swapper/223:59:012
71670rcu_preempt0-21swapper/300:41:053
71670rcu_preempt0-21swapper/300:41:053
71670rcu_preempt0-21swapper/223:07:102
71670rcu_preempt0-21swapper/223:07:102
71630rcu_preempt0-21swapper/223:39:462
71630rcu_preempt0-21swapper/223:39:462
100550480irq/38-i2c-mpc0-21swapper/323:15:263
100550480irq/38-i2c-mpc0-21swapper/323:15:263
71460rcu_preempt0-21swapper/100:27:461
71460rcu_preempt0-21swapper/100:27:461
71460rcu_preempt0-21swapper/100:27:461
519299454cyclictest0-21swapper/121:27:591
519299454cyclictest0-21swapper/121:27:591
519299453cyclictest0-21swapper/123:52:531
519299453cyclictest0-21swapper/123:52:531
71440rcu_preempt4252-1kworker/2:2H23:43:022
71440rcu_preempt4252-1kworker/2:2H23:43:022
71440rcu_preempt4252-1kworker/2:2H23:43:022
71430rcu_preempt0-21swapper/221:07:522
71430rcu_preempt0-21swapper/221:07:522
71430rcu_preempt0-21swapper/221:07:522
519299434cyclictest0-21swapper/120:22:591
519299434cyclictest0-21swapper/120:22:591
519299434cyclictest0-21swapper/120:22:591
519299433cyclictest0-21swapper/122:38:051
519299433cyclictest0-21swapper/122:38:051
519299433cyclictest0-21swapper/122:03:001
519299433cyclictest0-21swapper/122:03:001
519299433cyclictest0-21swapper/100:03:111
519299433cyclictest0-21swapper/100:03:111
519299433cyclictest0-21swapper/100:03:111
519299432cyclictest8626-21runrttasks22:46:161
519299432cyclictest8626-21runrttasks22:46:161
519299432cyclictest8626-21runrttasks22:46:161
5192994315cyclictest5508-21ssh23:41:311
5192994315cyclictest5508-21ssh23:41:311
71420rcu_preempt0-21swapper/123:57:571
71420rcu_preempt0-21swapper/123:57:571
71420rcu_preempt0-21swapper/123:57:571
519299423cyclictest0-21swapper/123:13:561
519299423cyclictest0-21swapper/123:13:561
519299423cyclictest0-21swapper/121:42:481
519299423cyclictest0-21swapper/121:42:481
519299421cyclictest30268-21latency_hist23:27:341
519299421cyclictest30268-21latency_hist23:27:341
46050420irq/122-QManpo13335-2109:24:360
46050420irq/122-QManpo13335-2109:24:360
46050420irq/122-QManpo13335-2109:24:360
519299413cyclictest0-21swapper/122:57:501
519299413cyclictest0-21swapper/122:57:501
519299413cyclictest0-21swapper/122:34:581
519299413cyclictest0-21swapper/122:34:581
519299413cyclictest0-21swapper/122:34:581
519299413cyclictest0-21swapper/121:03:021
519299413cyclictest0-21swapper/121:03:021
519299412cyclictest12555-21meminfo22:52:591
519299412cyclictest12555-21meminfo22:52:591
519299411cyclictest2014-21ssh00:35:161
519299411cyclictest2014-21ssh00:35:161
5192994114cyclictest19434-21ssh23:06:501
5192994114cyclictest19434-21ssh23:06:501
71400rcu_preempt5859-21apt-get23:42:551
71400rcu_preempt5859-21apt-get23:42:551
71400rcu_preempt5859-21apt-get23:42:551
71400rcu_preempt0-21swapper/200:42:532
71400rcu_preempt0-21swapper/200:42:532
519299403cyclictest0-21swapper/123:47:471
519299403cyclictest0-21swapper/123:47:471
519299403cyclictest0-21swapper/123:47:471
519299403cyclictest0-21swapper/123:17:481
519299403cyclictest0-21swapper/123:17:481
519299403cyclictest0-21swapper/123:17:481
519299403cyclictest0-21swapper/123:10:391
519299403cyclictest0-21swapper/123:10:391
519299403cyclictest0-21swapper/123:10:391
519299403cyclictest0-21swapper/120:42:501
519299403cyclictest0-21swapper/120:42:501
519299403cyclictest0-21swapper/100:11:181
519299403cyclictest0-21swapper/100:11:181
519299402cyclictest30285-21apt-get23:27:551
519299402cyclictest30285-21apt-get23:27:551
519299401cyclictest8127-21/usr/sbin/munin00:48:011
519299401cyclictest8127-21/usr/sbin/munin00:48:011
519299401cyclictest8127-21/usr/sbin/munin00:48:011
71390rcu_preempt18241-21ssh23:03:080
71390rcu_preempt18241-21ssh23:03:080
71390rcu_preempt16353-21/usr/sbin/munin01:02:571
71390rcu_preempt16353-21/usr/sbin/munin01:02:571
71390rcu_preempt16353-21/usr/sbin/munin01:02:571
71390rcu_preempt0-21swapper/200:37:262
71390rcu_preempt0-21swapper/200:37:262
71390rcu_preempt0-21swapper/022:52:580
71390rcu_preempt0-21swapper/022:52:580
519299393cyclictest0-21swapper/122:17:491
519299393cyclictest0-21swapper/122:17:491
519299393cyclictest0-21swapper/122:13:521
519299393cyclictest0-21swapper/122:13:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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