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 376 highest latencies:

System rackaslot4.osadl.org (updated Fri Aug 28, 2026 12:43:57)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2126135	99	34	10,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	32	8,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	32	6,20	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	31	8,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	31	7,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	31	6,19	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	31	6,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	7,19	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	7,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	7,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	7,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	6,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	6,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	6,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	6,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	6,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	30	5,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	29	6,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	29	6,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	29	6,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	29	6,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	29	5,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	29	4,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	29	4,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	28	7,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	28	6,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	28	5,19	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	28	5,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	28	5,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	28	5,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	28	4,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	28	3,19	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	27	6,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	27	5,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	27	5,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	27	5,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	27	4,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	27	4,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	27	3,18	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	27	3,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	26	6,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	26	5,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	26	5,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	26	5,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	26	4,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	26	4,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	26	3,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	25	5,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	25	5,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	25	4,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	25	4,16	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	25	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	25	2,17	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	24	5,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	24	5,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	24	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	24	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	24	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	24	4,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	24	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	24	3,15	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	23	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	23	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	23	3,13	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	22	4,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126135	99	22	3,14	cyclictest	157	-21	kworker/2:1-events_freezable		2
2126133	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