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 Fri Jun 12, 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
2635590	99	31	7,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	30	6,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	30	4,20	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	29	5,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	29	4,21	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	29	3,19	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	28	3,19	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	28	2,20	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	27	5,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	27	5,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	27	5,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	27	4,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	27	3,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	27	2,20	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	27	2,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	27	1,19	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	26	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	26	3,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	26	3,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	26	2,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	26	2,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	26	2,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	26	1,19	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	4,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	3,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	2,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	1,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	1,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	1,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	25	0,19	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	6,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	5,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	4,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	4,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	2,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	2,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	2,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	1,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	1,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	1,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	24	1,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	23	5,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	23	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	23	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	23	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	23	2,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	23	1,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	23	1,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	22	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	22	4,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	22	4,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	22	3,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	22	3,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	22	3,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	21	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	21	2,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	20	4,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	19	2,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635590	99	17	3,12	cyclictest	157	-21	kworker/2:1-events_freezable		2
2635587	99	10	6,3	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