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2026-05-15 - 08:23
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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 Fri May 15, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502270,0irq/45-4a10000026847-21kworker/0:218:59:420
212892950,0sleep019914-1kworker/u3:121:49:340
54182940,0sleep03091-1kworker/u3:121:02:210
64302910,0chrt3827-1kworker/u3:000:15:010
141612910,0sleep013129-1kworker/u3:119:54:090
7450900,0irq/46-4a10000021890-21ntp_states23:25:140
7450890,0irq/46-4a10000012846-21df21:24:380
7450880,0irq/46-4a1000005158-21/usr/sbin/munin19:25:200
7450880,0irq/46-4a10000028505-21if_eth023:44:560
28482880,0chrt32637-1kworker/u3:220:54:530
7450870,0irq/46-4a1000003827-1kworker/u3:000:08:410
7450870,0irq/46-4a10000028505-21/usr/sbin/munin20:34:560
7450870,0irq/46-4a10000021299-21grep20:14:330
7450870,0irq/46-4a10000020518-21users20:10:210
7450870,0irq/46-4a10000018084-21diskstats23:14:440
7450860,0irq/46-4a1000009953-21pluginstate22:50:110
7450860,0irq/46-4a1000009320-21/usr/sbin/munin21:14:340
7450860,0irq/46-4a1000008362-21fgrep00:20:140
7450860,0irq/46-4a1000004117-21aten_r4power_cu00:09:310
7450860,0irq/46-4a10000032657-1kworker/u3:000:01:470
7450860,0irq/46-4a10000030119-21timerwakeupswit19:05:180
7450860,0irq/46-4a10000028609-21sshd22:10:030
7450860,0irq/46-4a10000024476-21basename20:24:210
7450860,0irq/46-4a10000022785-1kworker/u3:120:46:130
7450860,0irq/46-4a1000002267-21munin-plugin-st22:29:210
7450860,0irq/46-4a10000019928-21fw_conntrack23:19:500
7450860,0irq/46-4a10000011773-21mailstats21:20:150
7450860,0irq/46-4a10000011631-21runrttasks22:55:100
7350860,0irq/45-4a10000026511-21df20:29:390
323242860,0chrt25099-1kworker/u3:019:10:360
149512860,0sleep013129-1kworker/u3:119:55:030
7450850,0irq/46-4a1000009116-21sendmail-msp21:14:220
7450850,0irq/46-4a1000008870-21chrt22:47:420
7450850,0irq/46-4a1000007083-21sshd19:32:040
7450850,0irq/46-4a1000005677-21runrttasks22:39:210
7450850,0irq/46-4a10000032097-21ntp_kernel_err22:20:040
7450850,0irq/46-4a10000031349-21seq23:54:240
7450850,0irq/46-4a1000002884-21if_eth019:19:540
7450850,0irq/46-4a10000027185-21sensors22:05:160
7450850,0irq/46-4a1000002602-21df22:29:400
7450850,0irq/46-4a10000025810-21runrttasks20:26:320
7450850,0irq/46-4a10000025663-21awk23:35:210
7450850,0irq/46-4a10000025255-21ntp_kernel_err22:00:070
7450850,0irq/46-4a10000023332-21fw_conntrack23:29:520
7450850,0irq/46-4a10000019923-21fw_forwarded_lo21:44:540
7450850,0irq/46-4a10000016253-21/usr/sbin/munin23:09:360
7450850,0irq/46-4a10000016057-21/usr/sbin/munin19:59:470
7450850,0irq/46-4a10000011828-21awk19:45:180
7450850,0irq/46-4a10000011462-21interrupts00:29:590
7350850,0irq/45-4a1000001156-21runrttasks20:49:550
306532859,0sleep030695-21wc20:40:170
7450840,0irq/46-4a1000009424-21cstates00:24:360
7450840,0irq/46-4a1000008044-21chrt19:34:580
7450840,0irq/46-4a1000006400-21latency22:40:020
7450840,0irq/46-4a1000006142-21fschecks_count21:04:480
7450840,0irq/46-4a10000030551-21grep22:15:110
7450840,0irq/46-4a10000026717-21tune2fs23:39:480
7450840,0irq/46-4a10000017831-21/usr/sbin/munin21:39:340
7450840,0irq/46-4a10000017157-21users21:35:360
7450840,0irq/46-4a10000015176-21which23:05:180
7450840,0irq/46-4a10000012926-21sed22:59:400
7450840,0irq/46-4a1000001007-21/usr/sbin/munin19:14:450
7350840,0irq/45-4a10000022926-21aten_r4power_en21:54:310
7450830,0irq/46-4a1000009417-21ls19:39:360
7450830,0irq/46-4a10000032003-21kernelversion23:55:000
7450830,0irq/46-4a10000018352-21sshd20:05:030
7450830,0irq/46-4a10000014761-21perl21:29:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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