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 all highest latencies:

System rack7slot2.osadl.org (updated Wed Feb 04, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2239820	99	113	103,8	cyclictest	2385353	-21	kworker/u4:2+events_unbound	11:33:53	0
2239820	99	111	100,8	cyclictest	2354895	-21	kworker/u4:7+events_unbound	11:08:46	0
2239821	99	107	95,10	cyclictest	2342461	-21	kworker/u4:1+events_unbound	10:35:42	1
2239820	99	100	72,14	cyclictest	2290699	-21	kworker/u4:6+events_unbound	09:33:29	0
2239820	99	99	92,5	cyclictest	2439371	-21	kworker/u4:6+events_unbound	12:39:04	0
2239820	99	95	88,5	cyclictest	2418331	-21	kworker/u4:7+events_unbound	12:04:00	0
2239820	99	94	86,6	cyclictest	2426989	-21	kworker/u4:15+events_unbound	12:13:59	0
2239821	99	91	84,5	cyclictest	2316879	-21	kworker/u4:6+events_unbound	10:03:33	1
2239820	99	90	82,6	cyclictest	2376639	-21	kworker/u4:3+events_unbound	11:13:49	0
2239820	99	90	82,6	cyclictest	2299681	-21	kworker/u4:12+events_unbound	09:43:30	0
2239820	99	90	81,6	cyclictest	2321325	-21	kworker/u4:0+events_unbound	10:18:36	0
2239820	99	89	81,6	cyclictest	2261581	-21	kworker/u4:6+events_unbound	08:48:19	0
2239820	99	87	78,7	cyclictest	2385353	-21	kworker/u4:2+events_unbound	11:28:51	0
2239820	99	85	78,5	cyclictest	2286225	-21	kworker/u4:1+events_unbound	09:28:26	0
2239820	99	84	75,6	cyclictest	2325438	-21	kworker/u4:2+events_unbound	10:20:15	0
2239820	99	84	60,21	cyclictest	54	-21	kswapd0	12:25:07	0
2239821	99	81	74,5	cyclictest	2354895	-21	kworker/u4:7+events_unbound	10:48:43	1
2239821	99	80	73,5	cyclictest	2443726	-21	kworker/u4:4+events_unbound	12:34:01	1
2239820	99	78	72,4	cyclictest	2243656	-21	kworker/u4:11+events_unbound	07:28:05	0
2239820	99	78	70,6	cyclictest	2299675	-21	kworker/u4:0+events_unbound	09:53:33	0
2239820	99	75	67,6	cyclictest	2248705	-21	kworker/u4:2+events_unbound	09:23:26	0
2239820	99	72	65,5	cyclictest	2413980	-21	kworker/u4:10+events_unbound	12:08:59	0
2239820	99	72	64,6	cyclictest	2321327	-21	kworker/u4:3+events_unbound	10:13:36	0
2239820	99	69	60,6	cyclictest	2239746	-21	kworker/u4:6+events_unbound	08:15:01	0
2239820	99	68	60,6	cyclictest	2266711	-21	kworker/u4:13+events_unbound	09:17:01	0
2239820	99	68	59,7	cyclictest	2251218	-21	kworker/u4:15+events_unbound	07:53:11	0
2239821	99	67	60,5	cyclictest	2439373	-21	kworker/u4:10+events_unbound	12:30:01	1
2239820	99	66	58,6	cyclictest	2413980	-21	kworker/u4:10+events_unbound	11:58:58	0
2239820	99	66	58,6	cyclictest	2321330	-21	kworker/u4:7+events_unbound	10:07:44	0
2239820	99	66	51,5	cyclictest	2251218	-21	kworker/u4:15+events_unbound	08:03:13	0
2239821	99	63	55,6	cyclictest	2249960	-21	kworker/u4:7+events_unbound	09:08:23	1
2239821	99	63	54,6	cyclictest	2359207	-21	kworker/u4:10+events_unbound	10:53:46	1
2239820	99	62	54,6	cyclictest	2313061	-21	kworker/u4:4+events_unbound	09:58:31	0
2239821	99	61	54,5	cyclictest	2295175	-21	kworker/u4:3+events_unbound	09:38:29	1
2239821	99	61	53,6	cyclictest	2252477	-21	kworker/u4:18+events_unbound	08:18:15	1
2239820	99	61	5,27	cyclictest	2442117	-21	ntpq	12:30:22	0
2239821	99	60	52,6	cyclictest	2405345	-21	kworker/u4:5+events_unbound	11:48:56	1
2239820	99	60	52,6	cyclictest	2246171	-21	kworker/u4:4+events_unbound	07:48:10	0
2239820	99	60	51,6	cyclictest	2409662	-21	kworker/u4:1+events_unbound	11:55:01	0
2239820	99	59	51,6	cyclictest	2321327	-21	kworker/u4:3+events_unbound	10:40:44	0
2239820	99	59	48,8	cyclictest	2406435	-21	sshd	11:48:55	0
2239820	99	59	47,8	cyclictest	2240161	-21	df	07:10:15	0
2239820	99	58	23,24	cyclictest	2430007	-21	users	12:15:41	0
2239821	99	57	50,5	cyclictest	2295177	-21	kworker/u4:8+events_unbound	09:43:59	1
2239820	99	57	52,3	cyclictest	0	-21	swapper/0	08:30:12	0
2239820	99	57	43,8	cyclictest	2321325	-21	kworker/u4:0-rpciod	10:29:46	0
2239820	99	57	35,19	cyclictest	2338100	-21	kworker/u4:12-xprtiod	10:35:11	0
2239821	99	56	47,7	cyclictest	2265236	-21	timerandwakeup	08:45:35	1
2239820	99	56	46,7	cyclictest	2393394	-21	kworker/u4:1+events_unbound	11:41:00	0
2239820	99	56	39,14	cyclictest	2357516	-21	fschecks_count	10:50:20	0
2239821	99	55	47,6	cyclictest	2273401	-21	kworker/u4:8+events_unbound	09:13:24	1
2239821	99	55	47,5	cyclictest	2365526	-21	latency_hist	11:00:00	1
2239821	99	55	45,7	cyclictest	37	-21	kcompactd0	12:17:18	1
2239821	99	55	42,11	cyclictest	0	-21	swapper/1	09:45:15	1
2239820	99	55	48,6	cyclictest	2333141	-21	kworker/u4:6+events_unbound	10:33:39	0
2239820	99	55	47,6	cyclictest	2342461	-21	kworker/u4:1+events_unbound	10:45:58	0
2239820	99	55	47,5	cyclictest	0	-21	swapper/0	11:35:35	0
2239821	99	54	45,6	cyclictest	2418331	-21	kworker/u4:7+events_unbound	12:24:01	1
2239820	99	54	47,5	cyclictest	2354895	-21	kworker/u4:7+events_unbound	11:00:02	0
2239820	99	54	47,5	cyclictest	2273401	-21	kworker/u4:8+events_unbound	09:13:00	0
2239821	99	53	46,5	cyclictest	2330288	-21	sshd	10:18:33	1
2239821	99	53	46,4	cyclictest	2261581	-21	kworker/u4:6+events_unbound	08:35:00	1
2239820	99	53	45,6	cyclictest	2260239	-21	kworker/u4:3+events_unbound	08:53:19	0
2239820	99	53	44,7	cyclictest	2315419	-21	/usr/sbin/munin	10:00:21	0
2239820	99	53	43,7	cyclictest	247	50	irq/20-imx-lcdifv3-crtc.0	11:20:02	0
2239820	99	53	34,6	cyclictest	2380990	-21	kworker/u4:10+events_unbound	11:21:00	0
2239821	99	52	43,7	cyclictest	2383314	-21	cut	11:20:21	1
2239820	99	52	7,42	cyclictest	0	-21	swapper/0	08:35:11	0
2239820	99	52	45,5	cyclictest	2246171	-21	kworker/u4:4+events_unbound	07:38:08	0
2239820	99	52	44,6	cyclictest	2426369	-21	kworker/u4:13+events_unbound	12:25:00	0
2239820	99	52	42,8	cyclictest	2256659	-21	aten_r7power_po	08:15:16	0
2239821	99	50	43,5	cyclictest	2304100	-21	kworker/u4:15+events_unbound	09:55:14	1
2239821	99	50	42,6	cyclictest	2374697	-21	fschecks_time	11:10:19	1
2239821	99	50	42,5	cyclictest	2425200	-21	sshd	12:10:32	1
2239820	99	50	43,5	cyclictest	2246173	-21	kworker/u4:13+events_unbound	08:06:43	0
2239820	99	50	43,5	cyclictest	2246173	-21	kworker/u4:13+events_unbound	08:06:43	0
2239821	99	49	42,5	cyclictest	2402158	-21	sshd	11:43:53	1
2239821	99	49	42,5	cyclictest	2331540	-21	acpi	10:20:13	1
2239821	99	49	42,5	cyclictest	2244545	-21	proc_pri	07:25:36	1
2239821	99	49	41,6	cyclictest	2276172	-21	grep	09:15:35	1
2239820	99	49	42,5	cyclictest	2299681	-21	kworker/u4:12+events_unbound	09:45:43	0
2239820	99	49	39,8	cyclictest	2251555	-21	aten_r7power_vo	07:55:19	0
2239820	99	49	39,8	cyclictest	2243676	-21	cron	07:25:00	0
2239820	99	48	41,5	cyclictest	0	-21	swapper/0	07:15:30	0
2239820	99	48	40,5	cyclictest	2260283	-21	apt-get	08:30:01	0
2239820	99	47	38,7	cyclictest	2268514	-21	fschecks_time	09:00:20	0
2239820	99	47	36,7	cyclictest	0	-21	swapper/0	07:40:16	0
2239820	99	47	26,18	cyclictest	2292909	-21	aten2__	09:35:14	0
2239821	99	46	38,6	cyclictest	2409664	-21	kworker/u4:6+events_unbound	11:53:58	1
2239821	99	46	38,6	cyclictest	2326261	-21	sh	10:13:33	1
2239821	99	46	37,7	cyclictest	2237271	-21	kworker/u4:0+rpciod	08:10:01	1
2239821	99	46	37,7	cyclictest	2237271	-21	kworker/u4:0+rpciod	08:10:00	1
2239821	99	46	37,6	cyclictest	2243656	-21	kworker/u4:11+events_unbound	07:33:07	1
2239821	99	46	37,6	cyclictest	2243656	-21	kworker/u4:11+events_unbound	07:33:07	1
2239821	99	46	37,6	cyclictest	0	-21	swapper/1	08:20:30	1
2239821	99	46	36,8	cyclictest	0	-21	swapper/1	11:35:27	1
2239821	99	46	36,6	cyclictest	0	-21	swapper/1	11:30:00	1
2239820	99	46	39,5	cyclictest	2270591	-21	latency_hist	09:10:02	0
2239820	99	46	37,6	cyclictest	0	-21	swapper/0	11:00:28	0
2239821	99	45	38,5	cyclictest	2348807	-21	aten_r7power_po	10:40:19	1
2239821	99	45	37,5	cyclictest	2280136	-21	gltestperf	09:20:22	1
2239821	99	45	34,9	cyclictest	2286223	-21	ssh	09:26:57	1
2239820	99	45	37,6	cyclictest	2258333	-21	gltestperf	08:20:25	0
2239821	99	44	38,4	cyclictest	2417231	-21	who	12:00:40	1
2239821	99	44	37,5	cyclictest	2449779	-21	diskmemload	12:40:00	1
2239821	99	44	37,5	cyclictest	2381828	-21	sshd	11:18:49	1
2239821	99	44	37,5	cyclictest	2335968	-21	aten_r7power_vo	10:25:16	1
2239821	99	44	37,5	cyclictest	2243700	-21	idleruntime-cro	07:24:59	1
2239821	99	44	37,5	cyclictest	1064	-21	lldpd	11:58:56	1
2239821	99	44	35,7	cyclictest	2306452	-21	fschecks_time	09:50:19	1
2239821	99	43	37,4	cyclictest	2371371	-21	uptime	11:05:43	1
2239821	99	43	37,4	cyclictest	2292583	-21	idleruntime-cro	09:34:59	1
2239821	99	43	36,5	cyclictest	2320232	-21	mailstats	10:05:35	1
2239821	99	43	35,6	cyclictest	2380992	-21	kworker/u4:12+events_unbound	11:30:15	1
2239821	99	43	35,6	cyclictest	2263200	-21	aten_r7power_cu	08:40:16	1
2239821	99	43	34,7	cyclictest	2260258	-21	kworker/u4:2	08:30:00	1
2239821	99	43	33,8	cyclictest	2424166	-21	ssh	12:10:01	1
2239820	99	43	33,7	cyclictest	2237271	-21	kworker/u4:0-rpciod	09:00:00	0
2239821	99	42	36,4	cyclictest	2262590	-21	sendmail_mailqu	08:35:40	1
2239821	99	42	31,9	cyclictest	2241064	-21	munin-run	07:15:00	1
2239821	99	42	31,8	cyclictest	0	-21	swapper/1	08:00:00	1
2239821	99	41	35,4	cyclictest	2366540	-21	ntp_offset	11:00:31	1
2239821	99	41	33,6	cyclictest	2243654	-21	kworker/u4:9+events_unbound	07:43:08	1
2239821	99	41	32,6	cyclictest	0	-21	swapper/1	10:30:16	1
2239821	99	40	33,4	cyclictest	0	-21	swapper/1	08:55:21	1
2239821	99	40	29,8	cyclictest	0	-21	swapper/1	07:15:36	1
2239820	99	40	30,7	cyclictest	0	-21	swapper/0	08:40:35	0
2239821	99	39	33,4	cyclictest	0	-21	swapper/1	07:45:22	1
2239821	99	39	33,4	cyclictest	0	-21	swapper/1	07:35:09	1
2239821	99	39	30,6	cyclictest	2246173	-21	kworker/u4:13+events_unbound	07:50:27	1
2239821	99	38	30,6	cyclictest	2266595	-21	unixbench-2d	08:50:38	1
2239821	99	38	30,6	cyclictest	0	-21	swapper/1	08:10:42	1
2239821	99	37	31,4	cyclictest	2243655	-21	kworker/u4:10-rpciod	08:00:37	1
2239821	99	37	28,6	cyclictest	0	-21	swapper/1	07:10:02	1
2239820	99	37	28,6	cyclictest	0	-21	swapper/0	07:30:34	0
2239820	99	37	28,6	cyclictest	0	-21	swapper/0	07:30:33	0
2239820	99	37	28,6	cyclictest	0	-21	swapper/0	07:10:01	0
2239821	99	36	24,8	cyclictest	0	-21	swapper/1	09:00:16	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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