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2025-11-25 - 11:02
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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 Tue Nov 25, 2025 00:53:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71690rcu_preempt0-21swapper/200:17:362
71690rcu_preempt0-21swapper/200:17:362
71540rcu_preempt0-21swapper/322:06:433
71540rcu_preempt0-21swapper/322:06:433
71520rcu_preempt0-21swapper/300:20:213
71520rcu_preempt0-21swapper/300:20:213
71520rcu_preempt0-21swapper/300:20:213
71480rcu_preempt0-21swapper/300:32:033
71480rcu_preempt0-21swapper/300:32:033
100550470irq/38-i2c-mpc0-21swapper/219:48:022
71440rcu_preempt0-21swapper/323:12:273
71440rcu_preempt0-21swapper/323:12:273
71440rcu_preempt0-21swapper/000:57:420
71440rcu_preempt0-21swapper/000:57:420
71430rcu_preempt0-21swapper/322:26:443
71430rcu_preempt0-21swapper/322:26:443
71430rcu_preempt0-21swapper/322:26:443
71430rcu_preempt0-21swapper/101:02:351
71430rcu_preempt0-21swapper/101:02:351
71420rcu_preempt0-21swapper/222:12:412
71420rcu_preempt0-21swapper/222:12:412
46050420irq/122-QManpo0-210
46050420irq/122-QManpo0-210
71410rcu_preempt9655-21kworker/2:222:57:482
71410rcu_preempt9655-21kworker/2:222:57:482
71410rcu_preempt0-21swapper/022:15:560
71410rcu_preempt0-21swapper/022:15:560
71400rcu_preempt0-21swapper/321:52:483
71400rcu_preempt0-21swapper/321:52:483
71390rcu_preempt18233-21sendmail-msp01:07:380
71390rcu_preempt18233-21sendmail-msp01:07:380
71390rcu_preempt13906-21irqstats00:58:003
71390rcu_preempt13906-21irqstats00:58:003
71390rcu_preempt0-21swapper/123:01:421
71390rcu_preempt0-21swapper/123:01:421
71390rcu_preempt0-21swapper/019:49:080
71380rcu_preempt0-21swapper/122:51:521
71380rcu_preempt0-21swapper/122:51:521
71380rcu_preempt0-21swapper/000:41:170
71380rcu_preempt0-21swapper/000:41:170
71370rcu_preempt13832-21diskstats00:57:570
71370rcu_preempt13832-21diskstats00:57:570
71370rcu_preempt0-21swapper/220:23:162
71370rcu_preempt0-21swapper/220:23:162
71370rcu_preempt0-21swapper/123:47:191
71370rcu_preempt0-21swapper/123:47:191
71370rcu_preempt0-21swapper/121:52:591
71370rcu_preempt0-21swapper/121:52:591
71370rcu_preempt0-21swapper/023:38:170
71370rcu_preempt0-21swapper/023:38:170
71370rcu_preempt0-21swapper/023:38:170
71370rcu_preempt0-21swapper/022:33:240
71370rcu_preempt0-21swapper/022:33:240
71370rcu_preempt0-21swapper/022:03:150
71370rcu_preempt0-21swapper/022:03:150
71370rcu_preempt0-21swapper/000:29:250
71370rcu_preempt0-21swapper/000:29:250
46050370irq/122-QManpo13560-2109:24:360
46050370irq/122-QManpo13560-2109:24:360
1599370migration/011045-21runrttasks20:13:380
1599370migration/011045-21runrttasks20:13:380
1599370migration/011045-21runrttasks20:13:380
71360rcu_preempt26623-21/usr/sbin/munin23:23:041
71360rcu_preempt26623-21/usr/sbin/munin23:23:041
71360rcu_preempt16594-1kworker/0:1H20:34:050
71360rcu_preempt16594-1kworker/0:1H20:34:050
71360rcu_preempt16594-1kworker/0:1H20:34:050
71360rcu_preempt0-21swapper/322:57:413
71360rcu_preempt0-21swapper/322:57:413
71360rcu_preempt0-21swapper/322:08:113
71360rcu_preempt0-21swapper/322:08:113
71360rcu_preempt0-21swapper/123:39:181
71360rcu_preempt0-21swapper/123:39:181
71360rcu_preempt0-21swapper/123:39:181
71360rcu_preempt0-21swapper/122:55:121
71360rcu_preempt0-21swapper/122:55:121
71360rcu_preempt0-21swapper/120:19:241
71360rcu_preempt0-21swapper/120:19:241
71360rcu_preempt0-21swapper/100:54:251
71360rcu_preempt0-21swapper/100:54:251
71360rcu_preempt0-21swapper/100:52:411
71360rcu_preempt0-21swapper/100:52:411
71360rcu_preempt0-21swapper/023:59:210
71360rcu_preempt0-21swapper/023:59:210
71360rcu_preempt0-21swapper/023:24:560
71360rcu_preempt0-21swapper/023:24:560
71360rcu_preempt0-21swapper/023:13:050
71360rcu_preempt0-21swapper/023:13:050
71360rcu_preempt0-21swapper/021:43:390
71360rcu_preempt0-21swapper/021:43:390
71360rcu_preempt0-21swapper/021:38:320
71360rcu_preempt0-21swapper/021:38:320
71360rcu_preempt0-21swapper/021:12:580
71360rcu_preempt0-21swapper/021:12:580
71360rcu_preempt0-21swapper/000:23:430
71360rcu_preempt0-21swapper/000:23:430
71360rcu_preempt0-21swapper/000:21:150
71360rcu_preempt0-21swapper/000:21:150
71360rcu_preempt0-21swapper/000:21:150
71360rcu_preempt0-21swapper/000:14:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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