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 792 highest latencies:

System rackaslot4.osadl.org (updated Sat Mar 14, 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
4017709	99	31	4,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	29	3,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	29	2,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	28	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	28	3,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	27	3,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	27	1,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	27	1,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	27	0,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	27	0,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	2,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	2,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	2,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	2,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	26	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	3,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	3,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	25	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	24	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	24	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	24	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	24	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	24	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	24	0,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	21	3,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	21	3,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	21	2,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	21	1,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	1,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	1,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	0,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	0,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	0,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	0,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	20	0,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	19	3,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	19	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	19	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	19	1,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	19	1,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	18	1,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	18	1,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	17	1,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	16	1,11	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	16	0,10	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017711	99	14	1,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
4017709	99	6	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