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2026-04-08 - 05:30
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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 highest latencies:
System rackcslot3.osadl.org (updated Wed Apr 08, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt0-21swapper/119:12:541
81760rcu_preempt2091-21memory00:10:341
81750rcu_preempt9002-21timerwakeupswit23:20:391
81750rcu_preempt8057-21ps21:15:361
81750rcu_preempt26212-21df23:55:271
81750rcu_preempt26212-21df23:55:271
81750rcu_preempt22939-21munin-run20:10:121
81750rcu_preempt10997-21sort21:20:361
81740rcu_preempt19-21ksoftirqd/121:30:051
89850730irq/17-ehci_hcd945-21usb-storage22:21:121
81720rcu_preempt15377-21ssh23:34:550
81720rcu_preempt11326-21/usr/sbin/munin23:25:371
81710rcu_preempt9050-21cyclictest23:05:401
81710rcu_preempt0-21swapper/123:15:321
81710rcu_preempt0-21swapper/121:30:351
81710rcu_preempt0-21swapper/021:43:380
81710rcu_preempt0-21swapper/021:30:320
81710rcu_preempt0-21swapper/000:05:320
81700rcu_preempt7015-21diskmemload23:01:441
81700rcu_preempt0-21swapper/100:30:281
81700rcu_preempt0-21swapper/100:26:171
81690rcu_preempt31859-21ssh22:00:341
81690rcu_preempt0-21swapper/122:34:501
81690rcu_preempt0-21swapper/122:15:301
81690rcu_preempt0-21swapper/121:55:251
81690rcu_preempt0-21swapper/121:46:311
81690rcu_preempt0-21swapper/120:55:251
81690rcu_preempt0-21swapper/120:20:371
81690rcu_preempt0-21swapper/023:56:310
81690rcu_preempt0-21swapper/023:56:310
81680rcu_preempt0-21swapper/023:29:240
89850670irq/17-ehci_hcd0-21swapper/022:41:080
81670rcu_preempt30861-21ssh00:04:570
81670rcu_preempt20762-21apt-get23:45:251
81670rcu_preempt19597-21ssh21:37:121
81670rcu_preempt0-21swapper/122:59:281
81670rcu_preempt0-21swapper/122:38:091
81670rcu_preempt0-21swapper/119:45:271
81670rcu_preempt0-21swapper/022:50:470
81660rcu_preempt7698-21ssh00:20:581
81660rcu_preempt30764-21ssh00:04:381
81660rcu_preempt0-21swapper/119:35:121
81660rcu_preempt0-21swapper/100:35:311
81660rcu_preempt0-21swapper/023:15:410
81650rcu_preempt8976-21users19:10:380
81650rcu_preempt4464-21sshd21:01:401
81650rcu_preempt2725-21sh00:11:020
81650rcu_preempt26060-21ssh22:51:341
81650rcu_preempt1203-21munin-run00:10:131
81650rcu_preempt0-21swapper/123:12:491
81650rcu_preempt0-21swapper/100:16:441
81650rcu_preempt0-21swapper/023:35:240
81650rcu_preempt0-21swapper/023:01:250
81640rcu_preempt27456-21ssh21:52:401
81640rcu_preempt24201-21ssh22:49:111
81640rcu_preempt21714-21ssh22:44:451
81640rcu_preempt1950-21sshd20:54:541
81640rcu_preempt18834-21ssh00:43:301
81640rcu_preempt16895-21ssh23:36:021
81640rcu_preempt0-21swapper/123:50:481
81640rcu_preempt0-21swapper/123:41:031
81640rcu_preempt0-21swapper/122:11:181
81640rcu_preempt0-21swapper/122:06:361
81640rcu_preempt0-21swapper/119:50:361
81640rcu_preempt0-21swapper/119:25:291
81630rcu_preempt30869-21munin-run22:00:120
81630rcu_preempt20982-21if_eth120:00:311
81630rcu_preempt20966-21df_inode21:40:271
81630rcu_preempt12057-21modprobe22:25:291
81630rcu_preempt0-21swapper/123:30:321
81630rcu_preempt0-21swapper/120:45:251
81630rcu_preempt0-21swapper/022:46:030
81630rcu_preempt0-21swapper/021:05:290
81620rcu_preempt25747-21sh23:54:480
81620rcu_preempt13795-21ps19:30:371
81620rcu_preempt0-21swapper/120:35:481
81620rcu_preempt0-21swapper/120:14:031
81620rcu_preempt0-21swapper/119:40:311
81610rcu_preempt9334-21df_abs19:15:261
81610rcu_preempt10133-21sh23:24:430
81610rcu_preempt0-21swapper/119:20:261
81610rcu_preempt0-21swapper/022:58:040
81610rcu_preempt0-21swapper/021:39:220
81610rcu_preempt0-21swapper/021:22:390
81600rcu_preempt0-21swapper/021:45:380
81600rcu_preempt0-21swapper/000:15:270
81590rcu_preempt19730-21ssh23:41:560
81590rcu_preempt0-21swapper/022:30:370
81590rcu_preempt0-21swapper/022:09:280
81590rcu_preempt0-21swapper/021:00:320
81580rcu_preempt27669-21ssh21:53:220
81580rcu_preempt18505-21ssh22:37:280
81580rcu_preempt14056-21ssh21:26:040
81580rcu_preempt13375-21ssh22:27:220
81580rcu_preempt0-21swapper/023:13:200
81580rcu_preempt0-21swapper/022:02:000
81580rcu_preempt0-21swapper/021:15:590
81580rcu_preempt0-21swapper/000:36:290
81580rcu_preempt0-21swapper/000:28:450
81570rcu_preempt16761-21/usr/sbin/munin19:45:280
81570rcu_preempt10651-21ssh22:22:120
81570rcu_preempt0-21swapper/023:46:010
81570rcu_preempt0-21swapper/022:14:400
81570rcu_preempt0-21swapper/020:58:500
81570rcu_preempt0-21swapper/019:39:050
81570rcu_preempt0-21swapper/019:15:280
81570rcu_preempt0-21swapper/000:44:040
81570rcu_preempt0-21swapper/000:23:380
81560rcu_preempt8691-21ssh22:19:290
81560rcu_preempt0-21swapper/023:08:270
81550rcu_preempt0-21swapper/020:40:400
81550rcu_preempt0-21swapper/020:05:330
81540rcu_preempt0-21swapper/020:35:590
81540rcu_preempt0-21swapper/020:20:340
81540rcu_preempt0-21swapper/000:30:200
81530rcu_preempt0-21swapper/020:19:540
81530rcu_preempt0-21swapper/019:55:530
81530rcu_preempt0-21swapper/019:43:100
9053995248cyclictest181ktimersoftd/120:15:351
9052995248cyclictest945-21usb-storage20:45:520
81520rcu_preempt4649-21dpkg21:05:241
81520rcu_preempt19-21ksoftirqd/120:30:271
81520rcu_preempt19-21ksoftirqd/119:55:251
81520rcu_preempt0-21swapper/020:25:480
81520rcu_preempt0-21swapper/020:14:130
81510rcu_preempt28438-21if_can020:30:310
81510rcu_preempt0-21swapper/021:11:590
81500rcu_preempt0-21swapper/020:02:270
9052994946cyclictest945-21usb-storage19:25:330
81490rcu_preempt19-21ksoftirqd/120:25:381
81490rcu_preempt0-21swapper/020:54:530
81480rcu_preempt19-21ksoftirqd/121:15:121
81480rcu_preempt0-21swapper/019:21:530
9052994744cyclictest945-21usb-storage19:30:300
81440rcu_preempt18945-21python19:50:370
147650410irq/28-eth0-rx-0-21swapper/120:42:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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