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2026-01-03 - 09:56
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Sat Jan 03, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt0-21swapper/019:06:250
81700rcu_preempt0-21swapper/023:19:200
81690rcu_preempt2138-21snmpd19:07:361
81690rcu_preempt1326-21sh00:16:520
81690rcu_preempt0-21swapper/122:16:151
81690rcu_preempt0-21swapper/121:28:141
81690rcu_preempt0-21swapper/120:16:211
81690rcu_preempt0-21swapper/023:42:070
81690rcu_preempt0-21swapper/022:08:440
81690rcu_preempt0-21swapper/021:18:350
81680rcu_preempt25091-21ssh21:15:231
81680rcu_preempt12187-21sh00:36:140
81680rcu_preempt0-21swapper/120:01:091
81680rcu_preempt0-21swapper/021:53:530
81680rcu_preempt0-21swapper/000:01:120
81670rcu_preempt26932-21sh23:09:421
81670rcu_preempt22384-21sh23:56:430
81670rcu_preempt20747-21sh22:01:371
81670rcu_preempt15825-21munin-run20:45:541
81670rcu_preempt0-21swapper/123:02:231
81670rcu_preempt0-21swapper/020:06:100
81660rcu_preempt22210-21diskmemload23:14:481
81660rcu_preempt0-21swapper/021:13:310
81650rcu_preempt13666-21ssh22:46:120
81650rcu_preempt12951-21processes20:31:191
81650rcu_preempt0-21swapper/023:38:210
81650rcu_preempt0-21swapper/022:24:080
81650rcu_preempt0-21swapper/000:31:180
81640rcu_preempt14233-21if_eth121:51:121
81640rcu_preempt0-21swapper/021:50:340
81640rcu_preempt0-21swapper/000:25:420
81630rcu_preempt6949-21df23:31:090
81630rcu_preempt31066-21ssh21:25:420
81630rcu_preempt27121-21ssh22:12:520
81630rcu_preempt1704-21munin-run21:30:540
81630rcu_preempt0-21swapper/121:23:381
81630rcu_preempt0-21swapper/021:38:520
81620rcu_preempt4060-21ssh21:34:030
81620rcu_preempt14402-21timerandwakeup20:36:211
81620rcu_preempt0-21swapper/123:56:171
81620rcu_preempt0-21swapper/123:51:211
81620rcu_preempt0-21swapper/121:41:111
81620rcu_preempt0-21swapper/100:21:191
81620rcu_preempt0-21swapper/023:10:010
81620rcu_preempt0-21swapper/022:35:090
81610rcu_preempt8435-21ssh00:30:400
81610rcu_preempt779-21cat23:20:551
81610rcu_preempt3861-21ssh22:29:160
81610rcu_preempt24537-21munin-run23:05:540
81610rcu_preempt19929-21rt-features22:56:190
81610rcu_preempt0-21swapper/123:32:101
81610rcu_preempt0-21swapper/121:38:581
81610rcu_preempt0-21swapper/120:06:121
81610rcu_preempt0-21swapper/100:05:401
81610rcu_preempt0-21swapper/022:55:080
81600rcu_preempt12692-21ssh22:44:580
81600rcu_preempt0-21swapper/121:35:231
81600rcu_preempt0-21swapper/121:16:181
81600rcu_preempt0-21swapper/120:26:191
81600rcu_preempt0-21swapper/119:21:131
81600rcu_preempt0-21swapper/100:34:291
81600rcu_preempt0-21swapper/021:42:240
81590rcu_preempt9725-21ssh22:39:440
81590rcu_preempt6221-21ssh23:29:570
81590rcu_preempt29383-21munin-run00:10:540
81590rcu_preempt26662-21munin-run19:20:541
81590rcu_preempt0-21swapper/123:25:311
81590rcu_preempt0-21swapper/122:44:211
81590rcu_preempt0-21swapper/122:26:381
81590rcu_preempt0-21swapper/122:21:121
81590rcu_preempt0-21swapper/122:11:431
81590rcu_preempt0-21swapper/121:50:041
81590rcu_preempt0-21swapper/119:31:171
81590rcu_preempt0-21swapper/100:12:011
81590rcu_preempt0-21swapper/023:51:520
81590rcu_preempt0-21swapper/023:22:300
81590rcu_preempt0-21swapper/023:11:140
81590rcu_preempt0-21swapper/022:02:020
81590rcu_preempt0-21swapper/021:59:530
81590rcu_preempt0-21swapper/021:59:530
81590rcu_preempt0-21swapper/020:56:180
81590rcu_preempt0-21swapper/000:13:100
81580rcu_preempt28211-21ssh22:15:580
81580rcu_preempt20924-21sshd21:01:370
81580rcu_preempt0-21swapper/123:47:461
81580rcu_preempt0-21swapper/122:52:521
81580rcu_preempt0-21swapper/122:32:071
81580rcu_preempt0-21swapper/100:07:001
81580rcu_preempt0-21swapper/023:48:220
81570rcu_preempt20330-21ssh22:56:421
81570rcu_preempt10279-21sort23:36:161
81570rcu_preempt0-21swapper/123:30:541
81570rcu_preempt0-21swapper/100:38:491
81570rcu_preempt0-21swapper/100:16:271
81570rcu_preempt0-21swapper/020:36:220
81570rcu_preempt0-21swapper/020:17:170
81570rcu_preempt0-21swapper/019:51:190
81570rcu_preempt0-21swapper/019:37:540
81560rcu_preempt7480-21ssh00:27:471
81560rcu_preempt3535-21diskstats19:56:090
81560rcu_preempt23897-21ssh22:07:071
81560rcu_preempt18441-21ssh21:58:271
81560rcu_preempt18441-21ssh21:58:271
81560rcu_preempt0-21swapper/123:41:121
81560rcu_preempt0-21swapper/122:48:311
81560rcu_preempt0-21swapper/122:37:471
81560rcu_preempt0-21swapper/120:12:491
81560rcu_preempt0-21swapper/119:46:161
81560rcu_preempt0-21swapper/020:50:430
81560rcu_preempt0-21swapper/020:01:110
81560rcu_preempt0-21swapper/019:18:080
81550rcu_preempt19817-21/usr/sbin/munin21:01:161
81550rcu_preempt17749-21latency20:51:141
81550rcu_preempt0-21swapper/119:41:171
81550rcu_preempt0-21swapper/021:07:160
81550rcu_preempt0-21swapper/020:21:120
81550rcu_preempt0-21swapper/019:28:370
81540rcu_preempt1837-21users19:46:230
81540rcu_preempt0-21swapper/120:49:571
81540rcu_preempt0-21swapper/119:29:251
81530rcu_preempt31675-21users19:36:201
81530rcu_preempt0-21swapper/121:06:201
81520rcu_preempt4212-21python19:56:181
81520rcu_preempt29579-21diskstats19:31:100
81520rcu_preempt17705-21irqstats20:51:140
81520rcu_preempt0-21swapper/120:56:211
24132995249cyclictest945-21usb-storage20:27:410
81510rcu_preempt7341-21diskstats20:11:110
81510rcu_preempt14971-21fw_forwarded_lo20:41:090
81510rcu_preempt12641-21irqstats20:31:150
81500rcu_preempt10559-21python20:21:191
81500rcu_preempt0-21swapper/119:52:121
24132994946cyclictest945-21usb-storage19:41:160
81480rcu_preempt19-21ksoftirqd/119:11:091
24132994846cyclictest945-21usb-storage19:21:100
24132994643cyclictest945-21usb-storage19:11:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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