OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack7slot2.osadl.org (updated Sat Feb 07, 2026 12:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2209332	99	111	103,6	cyclictest	2206767	-21	kworker/u4:2+events_unbound	07:19:59	0
2209332	99	109	97,6	cyclictest	2312167	-21	kworker/u4:5+events_unbound	10:35:36	0
2209332	99	100	90,7	cyclictest	2342370	-21	kworker/u4:2+events_unbound	11:10:40	0
2209332	99	100	88,9	cyclictest	2277519	-21	kworker/u4:5+events_unbound	10:05:34	0
2209332	99	100	88,9	cyclictest	2277519	-21	kworker/u4:5+events_unbound	10:05:34	0
2209332	99	99	91,6	cyclictest	2390129	-21	kworker/u4:17+events_unbound	12:10:47	0
2209332	99	95	81,5	cyclictest	2346768	-21	kworker/u4:8+events_unbound	11:20:41	0
2209332	99	93	85,6	cyclictest	2398850	-21	kworker/u4:4+events_unbound	12:30:51	0
2209332	99	91	83,6	cyclictest	2364392	-21	kworker/u4:12+events_unbound	12:05:46	0
2209332	99	90	83,5	cyclictest	2316587	-21	kworker/u4:11+events_unbound	10:50:37	0
2209333	99	88	36,30	cyclictest	2314430	-21	aten_r7power_en	10:35:16	1
2209332	99	87	80,5	cyclictest	2364392	-21	kworker/u4:12+events_unbound	11:40:45	0
2209333	99	85	38,27	cyclictest	2218404	-21	acpi	07:45:12	1
2209333	99	85	38,27	cyclictest	2218404	-21	acpi	07:45:12	1
2209332	99	85	74,8	cyclictest	2403217	-21	kworker/u4:6+events_unbound	12:25:50	0
2209332	99	83	75,6	cyclictest	2325383	-21	kworker/u4:12+events_unbound	11:05:41	0
2209332	99	83	72,5	cyclictest	255	50	irq/23-42890000.ethernet	07:10:00	0
2209332	99	80	71,7	cyclictest	2232183	-21	kworker/u4:8+events_unbound	08:55:01	0
2209332	99	80	71,7	cyclictest	2232183	-21	kworker/u4:8+events_unbound	08:55:01	0
2209332	99	80	65,8	cyclictest	2376988	-21	kworker/u4:1+events_unbound	11:55:46	0
2209332	99	79	75,2	cyclictest	2281937	-21	kworker/u4:1+events_unbound	10:10:35	0
2209332	99	77	70,5	cyclictest	2298903	-21	kworker/u4:8+events_unbound	10:30:35	0
2209332	99	76	69,5	cyclictest	2210540	-21	kworker/u4:6+events_unbound	07:45:05	0
2209332	99	76	69,5	cyclictest	2210540	-21	kworker/u4:6+events_unbound	07:45:05	0
2209333	99	74	39,32	cyclictest	2354423	-21	timerandwakeup	11:20:36	1
2209333	99	73	61,9	cyclictest	2235978	-21	kworker/u4:18+events_unbound	09:20:26	1
2209333	99	73	61,9	cyclictest	2235978	-21	kworker/u4:18+events_unbound	09:20:26	1
2209333	99	73	27,43	cyclictest	0	-21	swapper/1	10:15:13	1
2209333	99	72	40,28	cyclictest	2264212	-21	kworker/u4:0-rpciod	09:40:38	1
2209332	99	71	60,8	cyclictest	2273088	-21	kworker/u4:4+events_unbound	10:00:00	0
2209332	99	70	60,8	cyclictest	2403218	-21	kworker/u4:7+events_unbound	12:25:00	0
2209332	99	70	58,10	cyclictest	2239770	-21	kworker/u4:4+events_unbound	09:39:45	0
2209332	99	69	63,4	cyclictest	2199584	-21	kworker/u4:17+events_unbound	08:05:00	0
2209333	99	68	35,31	cyclictest	2309697	-21	munin-run	10:30:00	1
2209333	99	68	35,30	cyclictest	2327683	-21	fschecks_time	10:50:20	1
2209333	99	67	36,28	cyclictest	2387721	-21	latency_hist	12:00:04	1
2209333	99	67	32,31	cyclictest	0	-21	swapper/1	09:35:27	1
2209333	99	65	53,9	cyclictest	2224614	-21	kworker/u4:20+events_unbound	08:15:15	1
2209333	99	65	31,31	cyclictest	0	-21	swapper/1	11:00:27	1
2209332	99	65	6,57	cyclictest	0	-21	swapper/0	11:45:33	0
2209333	99	64	56,6	cyclictest	2151348	-21	kworker/u4:10+events_unbound	07:25:00	1
2209333	99	64	34,25	cyclictest	2342370	-21	kworker/u4:2-xprtiod	11:15:32	1
2209333	99	64	31,30	cyclictest	0	-21	swapper/1	12:20:33	1
2209332	99	64	52,5	cyclictest	2403216	-21	kworker/u4:5+events_unbound	12:18:56	0
2209332	99	64	48,7	cyclictest	2351191	-21	kworker/u4:4+events_unbound	11:18:00	0
2209333	99	63	56,5	cyclictest	2316584	-21	kworker/u4:8+events_unbound	10:45:36	1
2209333	99	63	36,22	cyclictest	2285008	-21	switchtime	10:00:38	1
2209333	99	63	3,17	cyclictest	2362727	-21	diskmemload	11:30:29	1
2209333	99	63	31,30	cyclictest	0	-21	swapper/1	10:20:41	1
2209333	99	63	29,31	cyclictest	2340850	-21	cat	11:05:21	1
2209333	99	63	25,34	cyclictest	0	-21	swapper/1	10:40:26	1
2209332	99	63	56,5	cyclictest	2210543	-21	kworker/u4:9+events_unbound	08:20:16	0
2209333	99	62	4,14	cyclictest	2374911	-21	ssh	11:45:02	1
2209333	99	62	36,23	cyclictest	2258385	-21	if_eth0	09:30:21	1
2209333	99	62	31,29	cyclictest	2209328	-21	cyclictest	09:49:59	1
2209333	99	62	29,30	cyclictest	0	-21	swapper/1	12:05:34	1
2209333	99	62	28,31	cyclictest	0	-21	swapper/1	12:25:18	1
2209333	99	62	25,33	cyclictest	0	-21	swapper/1	12:10:36	1
2209333	99	62	22,37	cyclictest	0	-21	swapper/1	12:40:02	1
2209332	99	62	53,6	cyclictest	2366005	-21	idleruntime-cro	11:35:00	0
2209332	99	62	53,5	cyclictest	0	-21	swapper/0	09:30:34	0
2209333	99	61	31,27	cyclictest	2296697	-21	cat	10:15:01	1
2209333	99	61	30,28	cyclictest	0	-21	swapper/1	12:15:32	1
2209333	99	61	26,32	cyclictest	0	-21	swapper/1	10:30:12	1
2209333	99	61	25,32	cyclictest	0	-21	swapper/1	11:10:34	1
2209333	99	60	3,15	cyclictest	2221622	-21	ps	07:55:35	1
2209333	99	60	31,26	cyclictest	0	-21	swapper/1	12:00:38	1
2209333	99	60	30,27	cyclictest	0	-21	swapper/1	08:40:22	1
2209333	99	60	28,29	cyclictest	0	-21	swapper/1	09:55:30	1
2209333	99	60	25,32	cyclictest	2209328	-21	cyclictest	11:37:40	1
2209333	99	60	25,30	cyclictest	0	-21	swapper/1	11:25:23	1
2209333	99	59	28,28	cyclictest	2414386	-21	kernelversion	12:30:22	1
2209333	99	59	28,28	cyclictest	0	-21	swapper/1	09:15:01	1
2209333	99	59	28,28	cyclictest	0	-21	swapper/1	09:15:01	1
2209333	99	59	28,28	cyclictest	0	-21	swapper/1	09:00:15	1
2209333	99	59	28,27	cyclictest	0	-21	swapper/1	07:10:33	1
2209333	99	59	24,31	cyclictest	0	-21	swapper/1	11:50:29	1
2209333	99	59	19,35	cyclictest	2275750	-21	cut	09:50:21	1
2209333	99	58	53,3	cyclictest	2191926	-21	kworker/u4:14+events_unbound	08:35:19	1
2209333	99	58	49,7	cyclictest	2219479	-21	kworker/u4:3+events_unbound	07:55:01	1
2209333	99	58	26,28	cyclictest	0	-21	swapper/1	08:25:20	1
2209333	99	58	25,31	cyclictest	0	-21	swapper/1	10:05:35	1
2209333	99	58	25,31	cyclictest	0	-21	swapper/1	10:05:35	1
2209333	99	58	24,31	cyclictest	0	-21	swapper/1	09:15:25	1
2209333	99	58	22,33	cyclictest	388	-21	dbus-daemon	08:50:20	1
2209333	99	58	22,33	cyclictest	388	-21	dbus-daemon	08:50:20	1
2209332	99	58	34,19	cyclictest	54	-21	kswapd0	11:25:10	0
2209333	99	57	29,26	cyclictest	2237266	-21	latency_hist	09:00:00	1
2209333	99	57	27,27	cyclictest	0	-21	swapper/1	07:30:00	1
2209333	99	57	26,27	cyclictest	2221989	-21	kworker/u4:8-rpciod	08:00:44	1
2209333	99	57	25,29	cyclictest	0	-21	swapper/1	07:35:36	1
2209333	99	57	25,29	cyclictest	0	-21	swapper/1	07:35:36	1
2209333	99	57	23,31	cyclictest	0	-21	swapper/1	10:55:37	1
2209333	99	57	22,31	cyclictest	0	-21	swapper/1	11:40:33	1
2209333	99	57	20,32	cyclictest	0	-21	swapper/1	09:10:02	1
2209333	99	56	3,21	cyclictest	2253443	-21	ssh	09:25:13	1
2209333	99	56	25,28	cyclictest	0	-21	swapper/1	07:15:40	1
2209332	99	56	49,5	cyclictest	2210546	-21	kworker/u4:13+events_unbound	07:14:59	0
2209332	99	56	40,7	cyclictest	2316587	-21	kworker/u4:11+events_unbound	10:45:00	0
2209332	99	56	38,7	cyclictest	2191926	-21	kworker/u4:14+events_unbound	07:20:58	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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