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2026-04-18 - 15:27
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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 Sat Apr 18, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501890,0irq/46-4a10000020047-21/usr/sbin/munin07:01:120
7450930,0irq/46-4a10000024754-21sshd08:50:240
7450930,0irq/46-4a10000010673-1kworker/u3:109:44:570
7350930,0irq/45-4a1000003241-1kworker/u3:109:25:320
7450920,0irq/46-4a1000006490-21fschecks_time09:30:520
7450920,0irq/46-4a10000031601-21idleruntime-cro07:35:250
7450920,0irq/46-4a10000016673-21/usr/sbin/munin11:35:480
20772999260,0cyclictest0-21swapper08:51:180
20772999260,0cyclictest0-21swapper08:01:130
20772999260,0cyclictest0-21swapper07:50:560
20772999259,0cyclictest0-21swapper10:26:200
20772999257,0cyclictest0-21swapper09:55:410
7450910,0irq/46-4a10000027051-21fw_conntrack10:30:550
7450910,0irq/46-4a10000023550-21fschecks_count11:55:490
7350910,0irq/45-4a100000476-1kworker/u3:207:39:430
7350910,0irq/45-4a10000016032-1kworker/u3:008:27:360
7350910,0irq/45-4a10000013987-21chrt11:26:210
20772999159,0cyclictest0-21swapper12:31:040
20772999158,0cyclictest0-21swapper11:21:030
20772999157,0cyclictest0-21swapper10:10:450
20772999157,0cyclictest0-21swapper08:20:410
7450900,0irq/46-4a1000007357-1kworker/u3:207:58:360
7450900,0irq/46-4a1000004495-21cut11:00:370
7450900,0irq/46-4a10000031089-21users10:41:230
7450900,0irq/46-4a10000030951-21threads09:06:210
7450900,0irq/46-4a10000029246-21ls07:26:210
7450900,0irq/46-4a10000027331-21/usr/sbin/munin08:56:140
7450900,0irq/46-4a10000025390-21seq12:00:590
7450900,0irq/46-4a1000002513-21runrttasks10:55:180
7450900,0irq/46-4a1000002288-21runrttasks09:18:120
7450900,0irq/46-4a1000001921-21switchtime07:41:200
7450900,0irq/46-4a10000016691-21cut10:00:470
7450900,0irq/46-4a10000013512-21latency08:16:000
7450890,0irq/46-4a1000008776-21cat11:11:200
7450890,0irq/46-4a1000003592-21switchtime07:46:190
7450890,0irq/46-4a10000029899-21sshd09:05:250
7450890,0irq/46-4a10000028634-21entropy10:35:470
7450890,0irq/46-4a10000022490-21grep11:51:200
7450890,0irq/46-4a10000018857-21zcat08:31:160
7450890,0irq/46-4a10000018250-21/usr/sbin/munin11:40:390
7450890,0irq/46-4a10000014718-21wget11:30:360
20772998949,0cyclictest0-21swapper09:21:110
7450880,0irq/46-4a1000009528-21/usr/sbin/munin11:16:200
7450880,0irq/46-4a1000008141-21/usr/sbin/munin09:35:510
7450880,0irq/46-4a1000005493-1kworker/u3:111:06:130
7450880,0irq/46-4a10000024868-21wc07:15:290
7450880,0irq/46-4a10000023877-21runrttasks10:21:110
7450880,0irq/46-4a10000023215-21/usr/sbin/munin07:11:340
7450880,0irq/46-4a10000020274-21if_eth008:35:570
7450880,0irq/46-4a10000019734-21latency_hist11:45:270
7450880,0irq/46-4a10000018144-21/usr/sbin/munin10:05:360
7450880,0irq/46-4a10000012088-21seq08:11:190
20772998856,0cyclictest0-21swapper09:46:220
20772998855,0cyclictest0-21swapper12:10:570
7450870,0irq/46-4a1000009681-21/usr/sbin/munin08:05:390
7450870,0irq/46-4a10000032187-21sort10:45:570
7450870,0irq/46-4a10000030039-21aten_r4power_cu12:15:330
7450870,0irq/46-4a1000002906-21sh10:55:420
7450870,0irq/46-4a10000027315-21ntp_states07:21:140
7450870,0irq/46-4a10000022622-21grep07:10:310
7450870,0irq/46-4a10000021880-21grep10:15:500
7350870,0irq/45-4a10000031744-21/usr/sbin/munin12:20:350
20772998755,0cyclictest0-21swapper08:40:500
20772998754,0cyclictest0-21swapper12:06:190
7450860,0irq/46-4a10000013675-21ps09:51:140
7450850,0irq/46-4a10000032741-21sed09:11:230
7450850,0irq/46-4a1000002029-21grep12:26:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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