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2026-03-19 - 19:02
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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 highest latencies:
System rack4slot2.osadl.org (updated Thu Mar 19, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502150,0irq/45-4a1000004309-21kworker/0:307:04:590
1205929513,0sleep012087-21latency_hist08:51:370
7999999357,0cyclictest0-21swapper09:17:280
7350920,0irq/45-4a1000003880-21diskstats08:26:550
7999999168,0cyclictest0-21swapper11:17:110
7999999157,0cyclictest0-21swapper11:12:130
7999999157,0cyclictest0-21swapper08:12:000
7999999157,0cyclictest0-21swapper08:07:230
7999999059,0cyclictest0-21swapper08:37:270
7999999058,0cyclictest0-21swapper10:26:570
7999999057,0cyclictest0-21swapper10:56:590
7999999056,0cyclictest0-21swapper07:36:440
7999998959,0cyclictest0-21swapper08:42:070
7999998957,0cyclictest0-21swapper09:27:020
7999998957,0cyclictest0-21swapper08:47:260
7999998957,0cyclictest0-21swapper07:47:060
7999998855,0cyclictest0-21swapper10:47:300
7999998855,0cyclictest0-21swapper07:57:320
7350880,0irq/45-4a10000013453-1kworker/u3:012:08:500
7999998765,0cyclictest0-21swapper10:42:330
7999998757,0cyclictest0-21swapper11:27:240
7999998754,0cyclictest0-21swapper11:22:130
7350870,0irq/45-4a10000027004-1kworker/u3:108:02:310
7350870,0irq/45-4a10000024370-21df_inode07:51:510
7999998662,0cyclictest0-21swapper11:32:000
7999998656,0cyclictest0-21swapper11:07:290
7999998654,0cyclictest0-21swapper09:47:270
7999998653,0cyclictest0-21swapper12:22:140
7999998653,0cyclictest0-21swapper12:02:240
7999998652,0cyclictest0-21swapper09:52:100
7350860,0irq/45-4a10000016645-21runrttasks10:37:410
7999998562,0cyclictest0-21swapper07:06:480
7999998553,0cyclictest0-21swapper09:22:140
7999998551,0cyclictest0-21swapper07:17:270
7999998463,0cyclictest0-21swapper12:32:040
7999998452,0cyclictest0-21swapper08:57:280
7350840,0irq/45-4a10000016911-1kworker/u3:012:19:050
7999998361,0cyclictest0-21swapper09:41:510
7999998352,0cyclictest0-21swapper07:12:070
7999998349,0cyclictest0-21swapper09:07:060
7450830,0irq/46-4a100000460-21snmpd11:03:570
7450830,0irq/46-4a100000460-21snmpd07:27:300
7350830,0irq/45-4a1000006338-21seq08:32:310
7999998258,0cyclictest0-21swapper11:56:440
7999998248,0cyclictest0-21swapper09:32:270
7350820,0irq/45-4a1000002478-21meminfo08:22:130
7350820,0irq/45-4a10000010293-21munin-run11:56:340
7999998160,0cyclictest0-21swapper10:17:180
7999998160,0cyclictest0-21swapper10:01:530
7999998149,0cyclictest0-21swapper07:42:330
7450810,0irq/46-4a100000460-21snmpd10:33:440
7350810,0irq/45-4a1000007996-21cyclictest09:37:280
7350810,0irq/45-4a10000018387-1kworker/u3:007:36:200
7350810,0irq/45-4a10000015712-21ls12:11:480
7350810,0irq/45-4a10000014897-21sed07:22:350
7350810,0irq/45-4a10000012-21ksoftirqd/009:04:320
7450800,0irq/46-4a100000460-21snmpd10:08:350
7450800,0irq/46-4a10000011658-21chrt10:23:470
7350800,0irq/45-4a1000008025-21grep10:12:320
7999997948,0cyclictest0-21swapper11:37:180
7999997947,0cyclictest0-21swapper11:47:070
7350790,0irq/45-4a1000005449-21cpu11:41:460
7350790,0irq/45-4a10000022108-1kworker/u3:112:31:360
7450780,0irq/46-4a10000020879-21runrttasks10:51:500
7450780,0irq/46-4a1000001818-21ls08:21:360
7350780,0irq/45-4a1000002082-21sshd09:56:500
7350780,0irq/45-4a10000018712-1kworker/u3:109:15:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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