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2026-05-06 - 03:54
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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 Wed May 06, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt0-21swapper/119:09:051
81720rcu_preempt16974-21cut21:55:561
81710rcu_preempt3502-21fw_conntrack22:30:481
81710rcu_preempt0-21swapper/022:53:150
81700rcu_preempt0-21swapper/122:15:581
81700rcu_preempt0-21swapper/019:05:540
81690rcu_preempt12396-21ssh22:45:560
81690rcu_preempt0-21swapper/021:27:420
81680rcu_preempt8627-21ssh00:38:020
81680rcu_preempt11737-21ssh22:45:461
146650680irq/31-eth0-tx-181ktimersoftd/122:53:521
81670rcu_preempt0-21swapper/122:00:561
81670rcu_preempt0-21swapper/023:35:550
81660rcu_preempt4530-21munin-run21:35:320
81660rcu_preempt10314-21sed21:45:321
81660rcu_preempt0-21swapper/121:30:551
81660rcu_preempt0-21swapper/120:25:101
81660rcu_preempt0-21swapper/119:20:551
81660rcu_preempt0-21swapper/100:15:471
81660rcu_preempt0-21swapper/023:42:020
81650rcu_preempt8208-21needreboot21:40:541
81650rcu_preempt6375-21df_abs22:35:481
81650rcu_preempt0-21swapper/121:29:251
81650rcu_preempt0-21swapper/120:35:471
81650rcu_preempt0-21swapper/120:25:371
81650rcu_preempt0-21swapper/023:58:470
81650rcu_preempt0-21swapper/000:18:540
81640rcu_preempt26300-21latency19:15:521
81640rcu_preempt15254-21if_can120:40:501
81640rcu_preempt11849-21ssh23:43:201
81640rcu_preempt0-21swapper/123:15:371
81640rcu_preempt0-21swapper/122:07:021
81640rcu_preempt0-21swapper/121:53:211
81640rcu_preempt0-21swapper/022:16:040
81640rcu_preempt0-21swapper/021:55:560
146650640irq/31-eth0-tx-171rcuc/122:14:571
81630rcu_preempt8326-21open_inodes21:40:570
81630rcu_preempt27734-21ssh21:18:541
81630rcu_preempt0-21swapper/123:12:141
81630rcu_preempt0-21swapper/122:56:561
81630rcu_preempt0-21swapper/121:00:481
81630rcu_preempt0-21swapper/100:25:481
81630rcu_preempt0-21swapper/100:08:131
81630rcu_preempt0-21swapper/022:59:580
81630rcu_preempt0-21swapper/022:10:460
81630rcu_preempt0-21swapper/000:10:540
81620rcu_preempt0-21swapper/123:35:551
81620rcu_preempt0-21swapper/122:28:101
81620rcu_preempt0-21swapper/119:40:561
81620rcu_preempt0-21swapper/100:38:581
81620rcu_preempt0-21swapper/100:30:421
81620rcu_preempt0-21swapper/021:50:520
81610rcu_preempt6594-21munin-run00:35:330
81610rcu_preempt18183-21munin-run23:55:330
81610rcu_preempt14350-21ssh23:47:241
81610rcu_preempt0-21swapper/123:27:171
81610rcu_preempt0-21swapper/120:11:461
81610rcu_preempt0-21swapper/119:58:231
81610rcu_preempt0-21swapper/100:10:501
81610rcu_preempt0-21swapper/021:25:230
81610rcu_preempt0-21swapper/020:28:340
81600rcu_preempt4840-21sshd22:32:120
81600rcu_preempt24180-21ssh22:10:190
81600rcu_preempt24157-21ssh23:06:091
81600rcu_preempt23219-21ssh00:03:581
81600rcu_preempt0-21swapper/123:53:121
81600rcu_preempt0-21swapper/123:31:151
81600rcu_preempt0-21swapper/121:40:081
81600rcu_preempt0-21swapper/120:45:491
81600rcu_preempt0-21swapper/119:47:161
81600rcu_preempt0-21swapper/023:48:190
81600rcu_preempt0-21swapper/023:34:270
81590rcu_preempt0-21swapper/123:21:071
81590rcu_preempt0-21swapper/121:25:161
81590rcu_preempt0-21swapper/022:25:450
81590rcu_preempt0-21swapper/021:47:280
81590rcu_preempt0-21swapper/021:19:230
81590rcu_preempt0-21swapper/000:01:310
81580rcu_preempt32720-21ssh23:22:000
81580rcu_preempt31337-21ssh22:21:071
81580rcu_preempt28542-21diskstats19:25:471
81580rcu_preempt19173-21grep20:55:500
81580rcu_preempt14762-21munin-run20:40:320
81580rcu_preempt0-21swapper/123:59:071
81580rcu_preempt0-21swapper/122:41:161
81580rcu_preempt0-21swapper/121:10:461
81580rcu_preempt0-21swapper/119:30:481
81580rcu_preempt0-21swapper/119:10:561
81580rcu_preempt0-21swapper/023:28:070
81580rcu_preempt0-21swapper/023:05:590
81580rcu_preempt0-21swapper/020:15:540
81580rcu_preempt0-21swapper/020:10:550
81570rcu_preempt6773-21memory22:35:540
81570rcu_preempt3197-21ssh00:28:490
81570rcu_preempt30672-21/usr/sbin/munin19:35:320
81570rcu_preempt21542-21ssh23:02:061
81570rcu_preempt21302-21ssh23:01:250
81570rcu_preempt0-21swapper/120:30:491
81570rcu_preempt0-21swapper/120:15:491
81570rcu_preempt0-21swapper/023:10:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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