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2025-09-15 - 12:44
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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 Mon Sep 15, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810rcu_preempt0-21swapper/119:11:061
81760rcu_preempt19-21ksoftirqd/122:32:461
81760rcu_preempt19-21ksoftirqd/122:20:501
81750rcu_preempt19-21ksoftirqd/123:33:161
81720rcu_preempt19-21ksoftirqd/123:22:501
81720rcu_preempt11604-21/usr/sbin/munin22:13:530
81720rcu_preempt11489-21ssh00:21:280
81720rcu_preempt0-21swapper/019:13:510
81710rcu_preempt9001-21df_inode22:08:470
81710rcu_preempt0-21swapper/019:58:530
81710rcu_preempt0-21swapper/019:23:510
81710rcu_preempt0-21swapper/000:03:520
81700rcu_preempt0-21swapper/022:43:210
81700rcu_preempt0-21swapper/021:34:020
81700rcu_preempt0-21swapper/021:17:310
81690rcu_preempt14890-21users22:18:570
81690rcu_preempt0-21swapper/121:36:581
81690rcu_preempt0-21swapper/021:20:170
81680rcu_preempt12365-21diskmemload21:39:010
81670rcu_preempt0-21swapper/122:24:121
81670rcu_preempt0-21swapper/122:05:111
81670rcu_preempt0-21swapper/021:50:430
81670rcu_preempt0-21swapper/021:44:240
81660rcu_preempt0-21swapper/022:52:200
81650rcu_preempt0-21swapper/100:28:171
81650rcu_preempt0-21swapper/023:55:410
81640rcu_preempt8778-21ssh00:16:120
81640rcu_preempt28199-21sshd22:45:481
81640rcu_preempt19400-21ssh23:33:280
81640rcu_preempt0-21swapper/122:48:471
81640rcu_preempt0-21swapper/000:09:100
89950630irq/17-ehci_hcd945-21usb-storage20:25:191
81630rcu_preempt20017-21rm21:27:081
81630rcu_preempt1631-21ntp_kernel_pll_20:23:540
81630rcu_preempt1406-21ssh00:00:111
81630rcu_preempt1387-21ssh22:57:441
81630rcu_preempt0-21swapper/022:28:440
81630rcu_preempt0-21swapper/021:30:020
81630rcu_preempt0-21swapper/020:18:560
81630rcu_preempt0-21swapper/000:38:540
141050630irq/28-eth0-rx-12365-21diskmemload21:18:011
81620rcu_preempt5757-21ssh23:04:330
81620rcu_preempt3183-21ssh21:57:491
81620rcu_preempt27958-21sh22:44:510
81620rcu_preempt23121-21munin-run19:43:321
81620rcu_preempt0-21swapper/123:48:371
81620rcu_preempt0-21swapper/121:45:321
89950610irq/17-ehci_hcd0-21swapper/023:37:370
81610rcu_preempt6707-21ssh23:08:071
81610rcu_preempt32026-21ssh21:49:221
81610rcu_preempt0-21swapper/123:11:191
81610rcu_preempt0-21swapper/122:34:401
81610rcu_preempt0-21swapper/121:32:401
81610rcu_preempt0-21swapper/119:53:591
81610rcu_preempt0-21swapper/119:33:551
81610rcu_preempt0-21swapper/119:33:551
81610rcu_preempt0-21swapper/100:22:261
81610rcu_preempt0-21swapper/100:09:081
81610rcu_preempt0-21swapper/100:06:301
81610rcu_preempt0-21swapper/023:10:020
81600rcu_preempt3-21ksoftirqd/023:25:420
81600rcu_preempt21665-21ssh00:41:041
81600rcu_preempt18689-21ssh00:34:291
81600rcu_preempt17738-21ssh21:23:291
81600rcu_preempt17254-21munin-run00:33:320
81600rcu_preempt0-21swapper/123:53:481
81590rcu_preempt25465-21ssh22:40:181
81590rcu_preempt24575-21ssh23:43:311
81590rcu_preempt14621-21ssh23:23:361
81590rcu_preempt0-21swapper/123:33:511
81590rcu_preempt0-21swapper/123:14:361
81590rcu_preempt0-21swapper/122:17:471
81590rcu_preempt0-21swapper/122:13:231
81590rcu_preempt0-21swapper/121:04:001
81590rcu_preempt0-21swapper/120:53:491
81590rcu_preempt0-21swapper/120:18:541
81590rcu_preempt0-21swapper/119:43:511
81590rcu_preempt0-21swapper/100:32:231
81590rcu_preempt0-21swapper/023:20:460
81590rcu_preempt0-21swapper/021:53:530
81580rcu_preempt1586-21ssh00:00:510
81580rcu_preempt14275-21kworker/0:219:08:570
81580rcu_preempt11045-21ssh23:15:390
81580rcu_preempt0-21swapper/121:39:311
81580rcu_preempt0-21swapper/120:48:481
81580rcu_preempt0-21swapper/119:23:521
81580rcu_preempt0-21swapper/022:59:120
81580rcu_preempt0-21swapper/020:53:430
81580rcu_preempt0-21swapper/020:03:490
81580rcu_preempt0-21swapper/019:38:560
81580rcu_preempt0-21swapper/019:30:130
89550570irq/17-ehci_hcd18752-21rm00:34:440
81570rcu_preempt8165-21ssh22:07:020
81570rcu_preempt3017-21open_inodes20:28:561
81570rcu_preempt26762-21ssh23:46:551
81570rcu_preempt16480-21ps19:13:571
81570rcu_preempt0-21swapper/122:01:021
81570rcu_preempt0-21swapper/100:14:591
81570rcu_preempt0-21swapper/022:56:060
81570rcu_preempt0-21swapper/019:33:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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