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2025-12-10 - 15:26
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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 the 50 highest latencies:
System rack4slot2.osadl.org (updated Wed Dec 10, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502310,0irq/45-4a1000009298-21kworker/0:007:03:040
7450990,0irq/46-4a10000014034-21aten_r4power_vo11:47:580
7450980,0irq/46-4a10000027431-21runrttasks09:17:460
7450970,0irq/46-4a10000022283-21sshd09:02:450
360529713,0sleep03624-21df08:07:570
7450960,0irq/46-4a10000017381-21/usr/sbin/munin11:57:510
7450950,0irq/46-4a100000443-21snmpd10:19:110
7450950,0irq/46-4a10000016291-21awk07:12:350
7450950,0irq/46-4a10000011440-1kworker/u3:511:44:460
7450950,0irq/46-4a10000011218-21runrttasks11:39:110
7350950,0irq/45-4a10000025465-1kworker/u3:110:47:010
7450940,0irq/46-4a1000004089-21/usr/sbin/munin11:18:090
7450940,0irq/46-4a10000031438-21seq07:53:300
7450940,0irq/46-4a10000022388-21df07:28:020
7450940,0irq/46-4a10000019084-21grep10:27:530
7450940,0irq/46-4a10000017438-21chrt08:48:000
7450940,0irq/46-4a10000016230-21runrttasks11:53:200
7450940,0irq/46-4a10000014246-21runrttasks08:38:460
7450930,0irq/46-4a1000008873-21df_inode08:23:000
7450930,0irq/46-4a1000008141-21uptime11:28:390
7450930,0irq/46-4a100000443-21snmpd08:43:240
7450930,0irq/46-4a100000432-21fschecks_time07:58:150
7450930,0irq/46-4a10000032050-21chrt09:29:400
7450930,0irq/46-4a10000026532-21ntp_states10:48:310
7450930,0irq/46-4a10000026024-21tune2fs07:38:100
7450930,0irq/46-4a10000018931-21cpuspeed07:18:000
7450930,0irq/46-4a10000016709-21seq07:12:510
7450930,0irq/46-4a10000010478-21cstates08:27:550
7450930,0irq/46-4a10000010449-21grep11:37:410
7350930,0irq/45-4a1000003344-1kworker/u3:009:43:420
7450920,0irq/46-4a100000443-21snmpd08:58:340
7450920,0irq/46-4a10000032529-21latency_hist09:32:390
7450920,0irq/46-4a10000031248-21/usr/sbin/munin11:02:580
7450920,0irq/46-4a10000029364-21df09:23:020
7450920,0irq/46-4a10000024295-21df_inode09:08:010
7450920,0irq/46-4a10000023018-21memory10:38:240
7450920,0irq/46-4a10000021154-21memory07:24:080
7450920,0irq/46-4a10000020982-21seq10:33:010
7450920,0irq/46-4a10000019634-21/usr/sbin/munin12:03:190
7450920,0irq/46-4a1000001920-21/usr/sbin/munin11:13:270
7450920,0irq/46-4a10000014482-21ntpq10:13:290
7450920,0irq/46-4a10000013590-21https08:37:360
7450920,0irq/46-4a10000010403-21chrt10:02:510
7450910,0irq/46-4a1000009066-21grep09:58:060
7450910,0irq/46-4a1000005558-21runrttasks09:48:050
7450910,0irq/46-4a1000005340-21df08:12:590
7450910,0irq/46-4a10000030697-1kworker/u3:211:02:120
7450910,0irq/46-4a10000029008-21/usr/sbin/munin07:48:210
7450910,0irq/46-4a10000028137-21meminfo10:53:200
7450910,0irq/46-4a1000002782-21uptime08:03:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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