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2026-04-09 - 20:43
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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 Thu Apr 09, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745013000,0irq/46-4a10000020671-1kworker/u3:007:03:350
21128999655,0cyclictest0-21swapper08:41:230
212582957,0sleep021291-21wget07:05:560
7450940,0irq/46-4a1000001872-21chrt10:51:200
21128999471,0cyclictest0-21swapper08:10:550
7450910,0irq/46-4a10000024216-21ntpq11:56:300
7450910,0irq/46-4a10000012314-21proc_pri09:46:320
7350910,0irq/45-4a10000028033-1kworker/u3:212:10:120
7350910,0irq/45-4a10000010147-21sed08:06:050
21128999157,0cyclictest0-21swapper11:46:350
21128999156,0cyclictest0-21swapper08:55:570
7450900,0irq/46-4a1000007552-21awk07:56:480
7450900,0irq/46-4a100000460-21snmpd09:52:450
7450900,0irq/46-4a1000003955-21ls07:46:390
7450900,0irq/46-4a10000032313-21df_abs10:46:010
7450900,0irq/46-4a10000031238-21cat12:16:380
7450900,0irq/46-4a10000029895-1kworker/u3:009:07:140
7450900,0irq/46-4a10000028071-1kworker/u3:010:33:370
7450900,0irq/46-4a10000026021-21proc_pri07:16:340
7450900,0irq/46-4a10000024164-1kworker/u3:010:21:480
7450900,0irq/46-4a10000018247-21runrttasks11:40:270
7450900,0irq/46-4a10000014828-1kworker/u3:009:59:220
7450900,0irq/46-4a10000013605-21seq08:16:070
7450900,0irq/46-4a10000010963-21awk09:41:440
7350900,0irq/45-4a10000018737-21/usr/sbin/munin10:06:090
49642908,0sleep05009-21df_abs09:26:020
21128999058,0cyclictest0-21swapper09:11:340
7450890,0irq/46-4a10000030252-21idleruntime-cro09:05:440
7450890,0irq/46-4a10000029803-1kworker/u3:110:38:200
7450890,0irq/46-4a10000026535-1kworker/u3:207:21:310
7450890,0irq/46-4a10000025722-21ls10:26:170
7450890,0irq/46-4a10000019170-21processes08:31:350
7450890,0irq/46-4a10000015663-21ntpq11:31:320
7450890,0irq/46-4a1000001341-21/usr/sbin/munin07:41:010
7350890,0irq/45-4a10000030031-21runrttasks12:13:580
21128998958,0cyclictest0-21swapper11:50:580
21128998957,0cyclictest0-21swapper10:16:440
21128998956,0cyclictest0-21swapper11:26:420
7450880,0irq/46-4a1000008206-21grep09:35:540
7450880,0irq/46-4a1000008167-21/usr/sbin/munin11:11:340
7450880,0irq/46-4a1000006981-21if_eth009:31:280
7450880,0irq/46-4a1000006127-1kworker/u3:011:08:460
7450880,0irq/46-4a1000005581-21zcat11:01:390
7450880,0irq/46-4a1000005061-21diskstats07:51:140
7450880,0irq/46-4a1000004484-21chrt12:34:410
7450880,0irq/46-4a10000032273-21cpu12:21:000
7450880,0irq/46-4a10000032056-21ls07:35:500
7450880,0irq/46-4a10000030821-21chrt07:31:150
7450880,0irq/46-4a10000030817-21grep10:41:130
7450880,0irq/46-4a10000026404-21chrt08:52:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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