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2026-01-11 - 13:18
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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 Sun Jan 11, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt0-21swapper/022:26:300
81710rcu_preempt23750-21ntp_states23:56:380
81700rcu_preempt10857-21sh23:32:581
81700rcu_preempt0-21swapper/123:51:381
81690rcu_preempt14489-21ssh00:41:110
81690rcu_preempt10851-21timerwakeupswit19:56:430
81690rcu_preempt0-21swapper/121:46:371
81690rcu_preempt0-21swapper/119:11:281
81690rcu_preempt0-21swapper/021:46:410
81680rcu_preempt9116-21munin-run00:31:160
81680rcu_preempt0-21swapper/123:05:491
81670rcu_preempt9811-21irqstats00:31:350
81670rcu_preempt7804-21ssh23:27:071
81670rcu_preempt25216-21memory22:01:371
81670rcu_preempt0-21swapper/022:21:310
81660rcu_preempt28944-21apt-get21:11:270
81660rcu_preempt0-21swapper/123:36:351
81660rcu_preempt0-21swapper/023:33:030
81660rcu_preempt0-21swapper/023:02:380
81650rcu_preempt30177-21sh00:08:221
81650rcu_preempt2138-21snmpd21:51:301
81650rcu_preempt1725-21sh21:19:491
81650rcu_preempt0-21swapper/122:17:151
81650rcu_preempt0-21swapper/100:21:381
81650rcu_preempt0-21swapper/100:00:431
81650rcu_preempt0-21swapper/021:57:520
81650rcu_preempt0-21swapper/021:23:030
81640rcu_preempt26557-21df_abs21:01:311
81640rcu_preempt19390-21ntpdc20:31:370
81640rcu_preempt17682-21ntpdc22:46:380
81640rcu_preempt0-21swapper/122:15:221
81640rcu_preempt0-21swapper/119:07:241
81640rcu_preempt0-21swapper/021:18:490
81630rcu_preempt32119-21ssh00:11:570
81630rcu_preempt27897-21idleruntime21:06:331
81630rcu_preempt12340-21wc20:06:161
81630rcu_preempt0-21swapper/120:56:411
81630rcu_preempt0-21swapper/100:02:381
81630rcu_preempt0-21swapper/023:46:040
81630rcu_preempt0-21swapper/021:45:020
81630rcu_preempt0-21swapper/020:52:000
81620rcu_preempt0-21swapper/123:21:221
81620rcu_preempt0-21swapper/123:21:221
81620rcu_preempt0-21swapper/022:06:190
81620rcu_preempt0-21swapper/020:39:360
81620rcu_preempt0-21swapper/019:23:160
81610rcu_preempt8910-21ssh21:31:420
81610rcu_preempt8319-21ssh23:28:480
81610rcu_preempt523-21ssh23:15:240
81610rcu_preempt32213-21df_abs19:16:281
81610rcu_preempt22059-21ssh22:55:530
81610rcu_preempt0-21swapper/122:24:421
81610rcu_preempt0-21swapper/121:34:311
81610rcu_preempt0-21swapper/120:46:401
81610rcu_preempt0-21swapper/120:41:301
81610rcu_preempt0-21swapper/120:21:401
81610rcu_preempt0-21swapper/120:21:401
81610rcu_preempt0-21swapper/019:16:380
89850600irq/17-ehci_hcd30602-21kworker/1:119:28:071
81600rcu_preempt7161-21munin-run19:46:160
81600rcu_preempt4618-21ssh21:25:291
81600rcu_preempt0-21swapper/123:11:401
81600rcu_preempt0-21swapper/100:32:221
81600rcu_preempt0-21swapper/023:51:290
81600rcu_preempt0-21swapper/023:40:550
81600rcu_preempt0-21swapper/023:21:580
81600rcu_preempt0-21swapper/023:21:580
81600rcu_preempt0-21swapper/023:00:050
81600rcu_preempt0-21swapper/022:36:510
81600rcu_preempt0-21swapper/022:01:340
81600rcu_preempt0-21swapper/020:26:330
81590rcu_preempt8401-21ssh22:30:591
81590rcu_preempt6557-21ssh21:27:480
81590rcu_preempt3192-21ssh00:20:031
81590rcu_preempt27914-21ssh00:04:480
81590rcu_preempt13748-21ssh00:38:351
81590rcu_preempt10525-21latency_hist21:36:161
81590rcu_preempt0-21swapper/123:50:221
81590rcu_preempt0-21swapper/122:47:201
81590rcu_preempt0-21swapper/122:36:491
81590rcu_preempt0-21swapper/022:32:030
81590rcu_preempt0-21swapper/022:15:320
81590rcu_preempt0-21swapper/021:37:360
81590rcu_preempt0-21swapper/020:56:390
81590rcu_preempt0-21swapper/020:11:390
81590rcu_preempt0-21swapper/019:11:330
81590rcu_preempt0-21swapper/000:21:380
81580rcu_preempt3-21ksoftirqd/019:06:160
81580rcu_preempt29755-21ssh00:07:010
81580rcu_preempt2949-21ssh00:19:150
81580rcu_preempt0-21swapper/123:45:321
81580rcu_preempt0-21swapper/123:17:431
81580rcu_preempt0-21swapper/122:56:351
81580rcu_preempt0-21swapper/121:43:241
81580rcu_preempt0-21swapper/100:13:531
81580rcu_preempt0-21swapper/023:47:020
81570rcu_preempt7264-21ssh21:29:571
81570rcu_preempt31274-21ssh21:15:021
81570rcu_preempt29542-21ssh23:08:120
81570rcu_preempt15709-21ssh22:43:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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