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 Mar 21, 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
2560476	99	25	6,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	25	6,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	25	5,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	24	5,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	23	5,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	23	5,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	23	5,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	23	5,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	23	5,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	23	5,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	23	5,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	22	5,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	22	5,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	22	5,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	21	5,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	21	5,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	21	4,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	21	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	5,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	20	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,10	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	19	4,10	cyclictest	157	-21	kworker/2:1-events_freezable		2
2560476	99	8	5,2	cyclictest	36	1	rcuc/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