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2026-04-24 - 14:37
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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 Apr 24, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74509810,0irq/46-4a10000020662-1kworker/u3:107:03:090
21028999560,0cyclictest0-21swapper08:05:480
21028999257,0cyclictest0-21swapper11:35:390
21028999256,0cyclictest0-21swapper10:50:590
21028999169,0cyclictest0-21swapper09:20:240
21028999159,0cyclictest0-21swapper07:31:010
21028999158,0cyclictest0-21swapper12:21:050
21028999158,0cyclictest0-21swapper08:15:330
21028999157,0cyclictest0-21swapper11:26:020
21028999156,0cyclictest0-21swapper09:50:310
21028999154,0cyclictest0-21swapper11:00:260
115042910,0sleep0990-1kworker/u3:208:10:200
7350900,0irq/45-4a10000016631-21/usr/sbin/munin10:00:180
297062900,0chrt28381-1kworker/u3:210:36:280
21028999058,0cyclictest0-21swapper09:10:340
21028999057,0cyclictest0-21swapper09:26:070
21028999055,0cyclictest0-21swapper09:15:420
21028998957,0cyclictest0-21swapper07:21:070
7450880,0irq/46-4a100000460-21snmpd11:50:220
21028998856,0cyclictest0-21swapper07:10:420
21028998855,0cyclictest0-21swapper12:05:500
21028998855,0cyclictest0-21swapper10:26:020
21028998855,0cyclictest0-21swapper07:51:040
21028998855,0cyclictest0-21swapper07:36:040
21028998854,0cyclictest0-21swapper09:01:110
7450870,0irq/46-4a10000031315-21grep09:06:070
21028998766,0cyclictest0-21swapper10:10:380
21028998766,0cyclictest0-21swapper08:40:420
21028998756,0cyclictest0-21swapper09:36:040
21028998756,0cyclictest0-21swapper07:16:010
21028998754,0cyclictest0-21swapper11:11:030
21028998753,0cyclictest0-21swapper08:21:080
21028998751,0cyclictest0-21swapper10:46:070
21028998655,0cyclictest0-21swapper11:46:060
21028998655,0cyclictest0-21swapper10:55:200
7450850,0irq/46-4a100000460-21snmpd11:09:590
7450850,0irq/46-4a10000031178-21mailstats12:16:050
7450850,0irq/46-4a10000021663-21seq07:05:460
21028998565,0cyclictest0-21swapper07:55:580
21028998564,0cyclictest0-21swapper09:41:030
21028998553,0cyclictest0-21swapper09:30:490
21028998552,0cyclictest0-21swapper08:51:020
21028998552,0cyclictest0-21swapper08:35:570
7450840,0irq/46-4a1000003899-21runrttasks12:31:070
7450840,0irq/46-4a10000024525-21sed10:21:080
7450840,0irq/46-4a10000023764-21df_inode11:55:300
7350840,0irq/45-4a10000025036-21munin-run08:50:110
21028998452,0cyclictest0-21swapper07:26:020
21028998451,0cyclictest0-21swapper12:00:210
7450830,0irq/46-4a1000004044-21chrt07:46:220
7450830,0irq/46-4a10000031338-21grep10:41:060
7450830,0irq/46-4a10000028934-21fschecks_count12:10:350
7450830,0irq/46-4a10000028488-21grep10:35:120
7450830,0irq/46-4a10000022877-21runrttasks10:16:310
7350830,0irq/45-4a1000009233-1kworker/u3:011:15:330
7350830,0irq/45-4a1000001874-21ls12:25:540
7350830,0irq/45-4a10000012-21ksoftirqd/009:00:020
21028998353,0cyclictest0-21swapper07:40:440
7450820,0irq/46-4a1000008562-21cat08:00:450
7450820,0irq/46-4a100000460-21snmpd11:35:100
7450820,0irq/46-4a10000018729-21fschecks_time11:40:370
7450820,0irq/46-4a10000016906-21diskstats08:25:310
7450820,0irq/46-4a10000015608-21/usr/sbin/munin09:55:570
7450820,0irq/46-4a10000011723-21sh11:20:270
7350820,0irq/45-4a10000018690-21cut08:30:360
7350820,0irq/45-4a10000018053-1kworker/u3:010:05:580
7450810,0irq/46-4a10000012370-21sensors09:46:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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