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2026-06-12 - 16:20
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Fri Jun 12, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502500,0irq/45-4a10000024108-21kworker/0:407:06:560
7350930,0irq/45-4a10000018173-21aten_r4power_vo09:55:000
25918999360,0cyclictest0-21swapper10:40:290
25918999359,0cyclictest0-21swapper12:05:250
25918999260,0cyclictest0-21swapper10:25:250
25918999257,0cyclictest0-21swapper07:29:480
7450910,0irq/46-4a10000010937-1kworker/u3:011:12:170
7350910,0irq/45-4a1000006320-21/usr/sbin/munin09:20:040
25918999159,0cyclictest0-21swapper11:20:190
7350900,0irq/45-4a10000031223-1kworker/u3:007:21:560
34332908,0sleep03462-21proc_pri10:45:380
262822900,0chrt24954-1kworker/u3:110:18:060
25918999058,0cyclictest0-21swapper10:00:470
25918999055,0cyclictest0-21swapper07:50:220
25918998967,0cyclictest0-21swapper09:45:150
25918998958,0cyclictest0-21swapper07:45:210
25918998957,0cyclictest0-21swapper12:30:360
25918998957,0cyclictest0-21swapper11:45:330
25918998955,0cyclictest0-21swapper09:50:310
7450880,0irq/46-4a1000003115-21tune2fs09:10:140
7450880,0irq/46-4a1000001095-21wget09:05:000
7350880,0irq/45-4a1000004437-21/usr/sbin/munin12:25:130
7350880,0irq/45-4a10000026629-21/usr/sbin/munin11:55:480
7450870,0irq/46-4a1000008280-21fschecks_time12:35:130
7450870,0irq/46-4a1000006486-21cut10:55:140
7450870,0irq/46-4a100000452-21snmpd11:30:020
7450870,0irq/46-4a100000452-21snmpd10:21:220
7450870,0irq/46-4a10000019680-21idleruntime-cro08:24:480
7450870,0irq/46-4a10000012316-21users09:35:460
7450870,0irq/46-4a10000010400-21sendmail_mailtr11:05:370
7350870,0irq/45-4a1000001696-21ntp_offset12:15:350
25918998766,0cyclictest0-21swapper07:30:250
25918998765,0cyclictest0-21swapper09:40:500
25918998765,0cyclictest0-21swapper07:40:160
25918998756,0cyclictest0-21swapper07:10:420
25918998753,0cyclictest0-21swapper08:15:020
25918998750,0cyclictest0-21swapper10:05:210
7450860,0irq/46-4a1000009766-21sed07:55:040
7450860,0irq/46-4a10000032570-21/usr/sbin/munin12:10:390
7450860,0irq/46-4a10000031648-21sendmail-msp08:59:510
7450860,0irq/46-4a10000027136-1kworker/u3:007:14:590
7450860,0irq/46-4a10000024916-1kworker/u3:211:51:120
7450860,0irq/46-4a10000022143-21grep11:40:370
7450860,0irq/46-4a10000020256-21fw_forwarded_lo08:25:200
7350860,0irq/45-4a10000011300-21runrttasks07:59:580
25918998663,0cyclictest0-21swapper12:20:440
25918998655,0cyclictest0-21swapper08:45:320
25918998655,0cyclictest0-21swapper08:35:380
25918998654,0cyclictest0-21swapper08:30:280
25918998653,0cyclictest0-21swapper08:40:180
25918998652,0cyclictest0-21swapper09:15:320
7450850,0irq/46-4a1000008939-21runrttasks11:00:540
7450850,0irq/46-4a1000004849-21fschecks_time10:50:170
7450850,0irq/46-4a10000031760-21/usr/sbin/munin09:00:230
7450850,0irq/46-4a10000028818-21sshd12:00:230
7450850,0irq/46-4a10000013651-21/usr/sbin/munin11:15:340
25918998556,0cyclictest0-21swapper11:25:330
25918998553,0cyclictest0-21swapper08:05:410
25918998551,0cyclictest0-21swapper08:50:320
7450840,0irq/46-4a1000009548-21/usr/sbin/munin09:30:370
7450840,0irq/46-4a100000802-21sshd10:39:220
7450840,0irq/46-4a10000030342-21df_inode10:30:070
7450840,0irq/46-4a1000002902-21cstates07:35:040
7450840,0irq/46-4a10000019876-21wget11:34:590
7450830,0irq/46-4a10000024280-21vmstat10:10:460
7450830,0irq/46-4a10000014341-1kworker/u3:208:10:290
25918998349,0cyclictest0-21swapper09:25:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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