OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #a, slot #4

Click here to display the system's profile data or here to proceed to next system.

Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.
Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 rackaslot4.osadl.org (updated Sat Jun 27, 2026 00:43:24)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2819861	99	27	3,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	27	0,20	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	24	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	24	3,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	24	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	24	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	23	4,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	23	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	23	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	23	2,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	23	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	23	0,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	2,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	1,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	22	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	3,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	21	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	20	4,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	20	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	20	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	20	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	20	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	20	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	20	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	20	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	19	2,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	19	2,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	19	2,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	19	2,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	19	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	19	1,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	19	0,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	18	1,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	18	1,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	18	0,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	17	2,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	17	1,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	17	1,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	16	1,10	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	16	0,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	15	1,8	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	15	1,10	cyclictest	157	-21	kworker/2:1-events_freezable		2
2819861	99	14	2,8	cyclictest	0	-21	swapper/2		2
2819861	99	5	1,2	cyclictest	0	-21	swapper/2		2
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^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17