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2026-08-12 - 13:29
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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 100 highest latencies:
System rack4slot2.osadl.org (updated Wed Aug 12, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502120,0irq/45-4a10000024721-21kworker/0:119:04:570
73501010,0irq/45-4a10000018638-21chrt21:42:060
7350880,0irq/45-4a10000024418-21ls22:00:070
7450850,0irq/46-4a1000008718-21awk00:24:490
7450850,0irq/46-4a10000032654-21sendmail-msp00:01:400
7450850,0irq/46-4a10000024081-21kworker/u2:422:59:510
137322850,0chrt11649-1kworker/u3:100:39:160
7450840,0irq/46-4a1000003806-21aten_r4power_po21:00:020
7450840,0irq/46-4a10000025813-21sendmail-msp23:40:490
7350840,0irq/45-4a1000007445-21diskstats22:45:100
27792840,0chrt1945-1kworker/u3:019:20:500
201752848,0sleep020183-21users20:10:510
7450830,0irq/46-4a1000008767-21sendmail-msp19:41:030
7450830,0irq/46-4a1000006043-21load22:40:370
7450830,0irq/46-4a1000004710-21unixbench_singl00:10:490
7450830,0irq/46-4a100000454-21snmpd21:09:520
7450830,0irq/46-4a10000018985-21sendmail-msp23:20:330
7450830,0irq/46-4a10000015693-21seq21:34:590
7450820,0irq/46-4a1000009590-21pluginstate22:50:490
7450820,0irq/46-4a100000930-21memory20:50:330
7450820,0irq/46-4a1000009145-21seq00:25:130
7450820,0irq/46-4a1000008324-21chrt19:36:280
7450820,0irq/46-4a1000005326-21sendmail-msp22:39:490
7450820,0irq/46-4a100000454-21snmpd23:56:370
7450820,0irq/46-4a100000454-21snmpd23:01:150
7450820,0irq/46-4a10000031529-21fw_conntrack20:45:190
7450820,0irq/46-4a10000028698-21users22:10:490
7450820,0irq/46-4a10000028045-21tune2fs23:45:180
7450820,0irq/46-4a10000027616-21cat20:34:520
7450820,0irq/46-4a10000010967-21fschecks_time00:30:160
7350820,0irq/45-4a10000029718-21fschecks_count20:40:190
7350820,0irq/45-4a10000011283-21/usr/sbin/munin21:20:510
7450810,0irq/46-4a1000005513-21wget19:30:000
7450810,0irq/46-4a100000479-21runrttasks19:15:210
7450810,0irq/46-4a100000454-21snmpd19:14:020
7450810,0irq/46-4a10000031919-21find22:20:560
7450810,0irq/46-4a10000026950-21timerwakeupswit20:30:490
7450810,0irq/46-4a10000025051-21sshd23:35:430
7450810,0irq/46-4a1000002465-21fw_conntrack22:30:210
7450810,0irq/46-4a10000023185-21ntpq23:30:370
7450810,0irq/46-4a10000022980-21fschecks_time20:20:230
7450810,0irq/46-4a10000021186-21fschecks_count20:15:160
7450810,0irq/46-4a10000021172-21fschecks_count23:25:160
7450810,0irq/46-4a10000021011-21runrttasks21:50:030
7450810,0irq/46-4a10000017977-21memory23:15:330
7450810,0irq/46-4a10000013991-21aten_r4power_cu23:05:010
7450810,0irq/46-4a10000013118-21find21:25:460
7450810,0irq/46-4a10000012707-21fschecks_time19:50:150
7350810,0irq/45-4a1000002119-21wget00:05:040
30382998155,0cyclictest0-21swapper21:29:590
1918228111,0sleep019207-21aten_r4power_vo21:45:010
7450800,0irq/46-4a1000005699-21df_abs00:15:090
7450800,0irq/46-4a100000517-21df22:25:020
7450800,0irq/46-4a1000003815-21wget19:25:010
7450800,0irq/46-4a10000029536-21df23:50:060
7450800,0irq/46-4a10000023647-21chrt21:56:140
7450800,0irq/46-4a10000017368-21grep20:04:530
7450800,0irq/46-4a10000016259-21load23:10:280
7450800,0irq/46-4a10000015595-21sendmail-msp20:00:000
7350800,0irq/45-4a1000007149-21/usr/sbin/munin21:10:350
7450790,0irq/46-4a100000454-21snmpd19:49:160
7450790,0irq/46-4a10000029764-21grep22:15:180
7450790,0irq/46-4a10000026615-21ntp_kernel_pll_22:05:370
7450790,0irq/46-4a1000002469-21fschecks_time20:55:180
7450790,0irq/46-4a10000024461-21df20:25:060
7450780,0irq/46-4a1000007451-1kworker/u3:021:15:090
7450780,0irq/46-4a10000015595-21sendmail-msp19:59:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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