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2026-04-12 - 03:55
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack4slot2.osadl.org (updated Sun Apr 12, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502660,0irq/46-4a10000012-21ksoftirqd/019:01:590
523429520,0sleep05291-21df22:15:580
299422900,0sleep028586-1kworker/u3:023:26:370
7450890,0irq/46-4a10000031348-21open_files23:31:300
115202870,0chrt5081-1kworker/u3:019:24:080
7450850,0irq/46-4a1000008153-1kworker/u3:222:36:150
7450850,0irq/46-4a10000024221-21grep23:11:070
7450850,0irq/46-4a10000015707-21fw_forwarded_lo22:46:110
7350850,0irq/45-4a10000018038-21users19:41:410
7350850,0irq/45-4a10000017562-21load00:26:220
7350850,0irq/45-4a10000014528-21timerwakeupswit19:31:360
90182848,0sleep09019-21meminfo20:51:210
7450840,0irq/46-4a1000004847-21cron23:50:380
7450840,0irq/46-4a10000030504-21pluginstate21:55:420
7450840,0irq/46-4a1000002932-21chrt20:33:540
7450840,0irq/46-4a10000027494-21chrt23:20:580
7450840,0irq/46-4a10000020263-21munin-plugin-st23:00:390
7450840,0irq/46-4a10000020231-21cron00:35:380
7450840,0irq/46-4a10000016827-21cron00:25:380
7450840,0irq/46-4a10000016131-21runrttasks21:11:340
7450840,0irq/46-4a10000012288-21fw_conntrack00:11:100
7450840,0irq/46-4a10000010602-21idleruntime20:56:130
7450840,0irq/46-4a10000010514-21grep22:31:070
7350840,0irq/45-4a10000022325-21df_abs23:05:590
72392840,0chrt29438-1kworker/u3:220:46:170
93242830,0chrt8259-1kworker/u3:000:01:350
7450830,0irq/46-4a1000008958-21irqstats19:16:140
7450830,0irq/46-4a1000007754-21grep22:21:360
7450830,0irq/46-4a1000006107-1kworker/u3:223:54:470
7450830,0irq/46-4a1000004704-21chrt20:39:200
7450830,0irq/46-4a100000460-21snmpd22:28:370
7450830,0irq/46-4a1000003195-21latency_hist23:45:410
7450830,0irq/46-4a10000030663-21wget21:55:490
7450830,0irq/46-4a10000029438-1kworker/u3:221:18:050
7450830,0irq/46-4a10000026032-21chrt21:41:170
7450830,0irq/46-4a10000023525-21runrttasks19:59:350
7450830,0irq/46-4a10000023466-21seq21:34:110
7450830,0irq/46-4a10000021456-21chrt23:01:420
7450830,0irq/46-4a10000017254-21/usr/sbin/munin22:50:580
7450830,0irq/46-4a10000014455-21sensors00:16:340
7450830,0irq/46-4a1000001375-1kworker/u3:222:09:490
7350830,0irq/45-4a10000032641-21df_inode22:01:000
7350830,0irq/45-4a10000024141-21fschecks_count21:36:040
7350830,0irq/45-4a10000011099-21cat00:06:340
7450820,0irq/46-4a100000806-21ls23:36:360
7450820,0irq/46-4a1000007336-21seq23:56:220
7450820,0irq/46-4a1000005392-21/usr/sbin/munin19:06:350
7450820,0irq/46-4a100000460-21snmpd20:17:460
7450820,0irq/46-4a100000460-21snmpd19:52:360
7450820,0irq/46-4a1000003287-21/usr/sbin/munin22:11:260
7450820,0irq/46-4a10000027106-21munin-run23:20:410
7450820,0irq/46-4a10000025989-21if_eth020:06:140
7450820,0irq/46-4a10000024131-21fschecks_count20:01:050
7450820,0irq/46-4a10000021447-21vmstat21:26:400
7450820,0irq/46-4a10000019020-21grep19:46:050
7450820,0irq/46-4a10000015559-21df_inode19:35:580
7450820,0irq/46-4a10000014359-21grep21:06:350
7450820,0irq/46-4a10000014209-21ntpq22:41:250
7450810,0irq/46-4a1000006898-1kworker/u3:021:04:190
7450810,0irq/46-4a10000031727-21chrt20:21:430
7450810,0irq/46-4a10000027733-21seq20:11:190
7450810,0irq/46-4a10000027512-21df_inode21:46:000
7450810,0irq/46-4a10000019494-21rt-features21:21:310
7450810,0irq/46-4a10000011837-21aten_r4power_cu19:25:470
7450810,0irq/46-4a1000001144-21runrttasks20:28:160
7450800,0irq/46-4a1000007552-21munin-node19:11:010
7450800,0irq/46-4a1000005015-21/usr/sbin/munin20:40:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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