OSADL QA Farm on Real-time of Mainline Linux

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

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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 highest latencies:

System rack7slot2.osadl.org (updated Fri Apr 24, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1872369	99	102	94,5	cyclictest	2055858	-21	kworker/u4:0+events_unbound	00:03:03	1
1872369	99	102	94,5	cyclictest	2055858	-21	kworker/u4:0+events_unbound	00:03:02	1
1872369	99	101	90,8	cyclictest	2020499	-21	kworker/u4:11+events_unbound	23:22:59	1
1872368	99	95	86,6	cyclictest	1883913	-21	kworker/u4:9+xprtiod	20:40:09	0
1872369	99	86	59,7	cyclictest	1937193	-21	kworker/u4:4+events_unbound	22:02:49	1
1872368	99	86	75,9	cyclictest	2039469	-21	ssh	23:43:49	0
1872369	99	83	64,16	cyclictest	53	-21	kswapd0	00:15:10	1
1872369	99	80	73,5	cyclictest	1883913	-21	kworker/u4:9+events_unbound	20:17:29	1
1872368	99	74	48,19	cyclictest	1872365	-21	cyclictest	22:40:19	0
1872368	99	71	52,16	cyclictest	53	-21	kswapd0	23:00:07	0
1872369	99	69	64,3	cyclictest	1881277	-21	kworker/u4:12+events_unbound	19:42:27	1
1872368	99	68	34,30	cyclictest	256	50	irq/23-42890000.ethernet	19:50:10	0
1872368	99	66	30,26	cyclictest	256	50	irq/23-42890000.ethernet	21:00:07	0
1872369	99	65	60,3	cyclictest	1868645	-21	kworker/u4:8+events_unbound	20:27:30	1
1872368	99	65	57,6	cyclictest	2012254	-21	kworker/u4:8+events_unbound	23:12:59	0
1872369	99	64	56,6	cyclictest	1898140	-21	kworker/u4:13+events_unbound	21:10:00	1
1872368	99	63	49,10	cyclictest	1872365	-21	cyclictest	23:38:22	0
1872368	99	63	48,9	cyclictest	1952266	-21	modprobe	22:05:00	0
1872369	99	62	57,3	cyclictest	1998919	-21	kworker/u4:8+events_unbound	22:57:58	1
1872368	99	62	4,52	cyclictest	1935670	-21	ssh	21:45:32	0
1872368	99	62	36,14	cyclictest	53	-21	kswapd0	00:15:10	0
1872369	99	58	50,6	cyclictest	1886482	-21	kworker/u4:2+events_unbound	20:22:30	1
1872368	99	58	7,48	cyclictest	1904421	-21	ssh	21:10:28	0
1872368	99	58	52,3	cyclictest	256	50	irq/23-42890000.ethernet	00:20:35	0
1872368	99	58	47,9	cyclictest	1903379	-21	diskmemload	00:00:17	0
1872368	99	58	47,9	cyclictest	1903379	-21	diskmemload	00:00:16	0
1872368	99	58	22,26	cyclictest	256	50	irq/23-42890000.ethernet	20:45:08	0
1872369	99	57	51,4	cyclictest	1981586	-21	kworker/u4:9+events_unbound	22:40:01	1
1872369	99	57	50,5	cyclictest	1902070	-21	kworker/u4:16+events_unbound	21:22:46	1
1872369	99	57	49,6	cyclictest	1896028	-21	fschecks_time	20:40:24	1
1872369	99	57	49,5	cyclictest	1953495	-21	/usr/sbin/munin	22:05:37	1
1872369	99	57	49,5	cyclictest	1883914	-21	kworker/u4:13+events_unbound	20:12:29	1
1872369	99	57	47,8	cyclictest	1995205	-21	systemd	22:52:56	1
1872368	99	57	39,15	cyclictest	1989098	-21	/usr/sbin/munin	22:45:39	0
1872369	99	56	46,7	cyclictest	2075662	-21	grep	00:25:20	1
1872369	99	55	48,5	cyclictest	1937193	-21	kworker/u4:4+events_unbound	22:20:02	1
1872369	99	55	48,5	cyclictest	1926003	-21	/usr/sbin/munin	21:35:16	1
1872369	99	55	48,5	cyclictest	1926003	-21	/usr/sbin/munin	21:35:16	1
1872368	99	55	49,5	cyclictest	1882554	-21	kworker/u4:3+events_unbound	20:09:02	0
1872369	99	54	47,5	cyclictest	2041287	-21	sshd	23:45:29	1
1872369	99	54	47,5	cyclictest	1923649	-21	kworker/u4:3+events_unbound	21:32:46	1
1872368	99	54	34,12	cyclictest	1950061	-21	kworker/u4:13-rpciod	22:15:18	0
1872369	99	53	46,5	cyclictest	1928144	-21	kworker/u4:12+events_unbound	21:42:48	1
1872368	99	53	43,7	cyclictest	1965862	-21	dpkg	22:20:12	0
1872368	99	53	33,17	cyclictest	1983212	-21	cron	22:40:01	0
1872369	99	52	45,5	cyclictest	1935622	-21	ld	21:45:30	1
1872369	99	52	44,6	cyclictest	1972590	-21	kworker/u4:2+events_unbound	22:27:55	1
1872368	99	52	40,7	cyclictest	0	-21	swapper/0	22:13:51	0
1872369	99	51	45,4	cyclictest	1955203	-21	kworker/u4:17+events_unbound	22:10:04	1
1872369	99	51	43,6	cyclictest	2077367	-21	kworker/u4:2-rpciod	00:35:41	1
1872369	99	51	42,7	cyclictest	315	-21	systemd-journal	21:12:39	1
1872369	99	51	40,7	cyclictest	1923647	-21	kworker/u4:0-rpciod	22:15:31	1
1872369	99	51	35,5	cyclictest	2016680	-21	kworker/u4:10+events_unbound	23:35:01	1
1872368	99	51	44,4	cyclictest	0	-21	swapper/0	23:15:13	0
1872369	99	50	44,4	cyclictest	1908543	-21	fschecks_time	21:15:21	1
1872369	99	50	43,5	cyclictest	1900548	-21	unixbench-2d	20:55:37	1
1872368	99	50	44,4	cyclictest	0	-21	swapper/0	19:59:01	0
1872368	99	50	43,5	cyclictest	2049657	-21	gltestperf	23:55:22	0
1872368	99	50	3,33	cyclictest	2041216	-21	ssh	23:45:26	0
1872368	99	50	28,6	cyclictest	0	-21	swapper/0	00:25:30	0
1872369	99	49	42,5	cyclictest	2014384	-21	aten2__	23:15:15	1
1872369	99	49	42,5	cyclictest	1883578	-21	sendmail_mailqu	19:50:41	1
1872369	99	49	41,6	cyclictest	2003430	-21	kworker/u4:11+events_unbound	23:04:41	1
1872369	99	49	28,18	cyclictest	0	-21	swapper/1	21:25:27	1
1872368	99	49	41,5	cyclictest	2024307	-21	unixbench-2d	23:25:39	0
1872368	99	49	40,7	cyclictest	1926484	-21	/usr/sbin/munin	21:35:22	0
1872368	99	49	40,7	cyclictest	1926484	-21	/usr/sbin/munin	21:35:21	0
1872368	99	49	39,7	cyclictest	1952646	-21	aten_r7power_cu	22:05:15	0
1872368	99	49	30,16	cyclictest	0	-21	swapper/0	19:20:01	0
1872368	99	49	28,18	cyclictest	0	-21	swapper/0	23:25:00	0
1872368	99	49	16,21	cyclictest	0	-21	swapper/0	22:25:23	0
1872369	99	48	39,7	cyclictest	1874868	-21	systemd	19:17:23	1
1872368	99	48	41,5	cyclictest	2045607	-21	sshd	23:50:30	0
1872368	99	48	38,7	cyclictest	2028626	-21	/usr/sbin/munin	23:30:39	0
1872369	99	47	40,5	cyclictest	2010696	-21	ld	23:10:28	1
1872369	99	47	39,6	cyclictest	0	-21	swapper/1	21:50:30	1
1872369	99	47	38,7	cyclictest	2009709	-21	cron	23:10:01	1
1872369	99	47	38,7	cyclictest	0	-21	swapper/1	23:35:14	1
1872368	99	47	7,13	cyclictest	1943692	-21	apt-get	21:55:14	0
1872368	99	47	40,5	cyclictest	2079840	-21	basename	00:30:17	0
1872368	99	47	21,4	cyclictest	15	1	ktimers/0	21:25:26	0
1872369	99	46	40,4	cyclictest	2023859	-21	sh	23:25:29	1
1872369	99	46	39,5	cyclictest	2058695	-21	ssh	00:05:31	1
1872369	99	46	38,5	cyclictest	1983703	-21	hostname	22:40:17	1
1872369	99	46	38,5	cyclictest	1943758	-21	aten2__	21:55:18	1
1872368	99	46	9,8	cyclictest	1872516	-21	apt-get	19:10:12	0
1872368	99	46	41,3	cyclictest	0	-21	swapper/0	22:55:27	0
1872368	99	46	38,5	cyclictest	1910111	-21	kworker/u4:2+events_unbound	21:35:02	0
1872368	99	46	38,5	cyclictest	1892116	-21	fschecks_time	20:25:20	0
1872368	99	46	21,4	cyclictest	15	1	ktimers/0	21:10:01	0
1872368	99	46	12,21	cyclictest	0	-21	swapper/0	21:45:01	0
1872369	99	45	39,4	cyclictest	1886478	-21	systemd	20:02:27	1
1872369	99	45	38,5	cyclictest	2071762	-21	/usr/sbin/munin	00:20:30	1
1872369	99	45	36,7	cyclictest	1882324	-21	threads	19:45:36	1
1872369	99	45	35,7	cyclictest	1875990	-21	timerwakeupswit	19:20:35	1
1872369	99	45	35,6	cyclictest	1898737	-21	gltestperf	20:50:19	1
1872368	99	45	38,5	cyclictest	2084673	-21	netstat	00:35:25	0
1872368	99	45	38,5	cyclictest	1913937	-21	unixbench_singl	21:20:39	0
1872368	99	45	35,7	cyclictest	2006288	-21	/usr/sbin/munin	23:05:25	0
1872368	99	45	26,17	cyclictest	1939456	-21	aten_r7power_vo	21:50:18	0
1872368	99	45	25,17	cyclictest	0	-21	swapper/0	22:50:27	0
1872369	99	44	38,4	cyclictest	1988088	-21	aten_r7power_en	22:45:17	1
1872369	99	44	36,6	cyclictest	1876606	-21	fschecks_count	19:25:19	1
1872369	99	44	33,9	cyclictest	0	-21	swapper/1	23:50:35	1
1872369	99	44	33,7	cyclictest	0	-21	swapper/1	00:10:41	1
1872368	99	44	7,29	cyclictest	256	50	irq/23-42890000.ethernet	00:05:29	0
1872368	99	44	35,7	cyclictest	1877755	-21	aten_r7power_vo	19:30:17	0
1872368	99	44	18,2	cyclictest	15	1	ktimers/0	21:15:31	0
1872369	99	43	34,7	cyclictest	0	-21	swapper/1	23:40:35	1
1872369	99	43	34,6	cyclictest	0	-21	swapper/1	20:40:02	1
1872369	99	43	32,6	cyclictest	0	-21	swapper/1	00:30:26	1
1872369	99	43	28,13	cyclictest	1968082	-21	kworker/u4:19-rpciod	22:30:15	1
1872368	99	43	36,5	cyclictest	1879515	-21	sshd	19:35:29	0
1872368	99	43	36,4	cyclictest	1881195	-21	unixbench_multi	19:40:37	0
1872368	99	43	35,6	cyclictest	1895304	-21	unixbench_multi	20:35:37	0
1872368	99	43	35,6	cyclictest	1888300	-21	gltestperf	20:10:20	0
1872368	99	43	13,4	cyclictest	15	1	ktimers/0	19:30:00	0
1872368	99	42	33,6	cyclictest	0	-21	swapper/0	20:50:19	0
1872368	99	42	32,7	cyclictest	1881277	-21	kworker/u4:12-rpciod	19:45:19	0
1872368	99	42	22,18	cyclictest	2063551	-21	unixbench_singl	00:10:40	0
1872369	99	41	35,4	cyclictest	1900978	-21	find	21:00:13	1
1872369	99	41	33,6	cyclictest	1884845	-21	sendmail_mailqu	19:55:36	1
1872369	99	41	32,7	cyclictest	2049663	-21	tail	23:55:22	1
1872369	99	41	32,7	cyclictest	1872725	-21	df_abs	19:10:16	1
1872369	99	41	32,6	cyclictest	0	-21	swapper/1	19:10:01	1
1872369	99	41	31,7	cyclictest	0	-21	swapper/1	19:40:02	1
1872368	99	41	36,4	cyclictest	1886482	-21	kworker/u4:2+events_unbound	20:03:13	0
1872368	99	41	35,4	cyclictest	1978869	-21	basename	22:35:01	0
1872368	99	41	32,7	cyclictest	1899822	-21	grep	20:55:15	0
1872368	99	41	32,7	cyclictest	1894169	-21	munin-run	20:35:00	0
1872369	99	40	32,4	cyclictest	1877447	-21	kworker/u4:5-rpciod	19:30:36	1
1872368	99	40	33,5	cyclictest	1889302	-21	aten_r7power_po	20:15:16	0
1872368	99	40	31,7	cyclictest	1875947	-21	timerandwakeup	19:20:33	0
1872368	99	40	31,7	cyclictest	0	-21	swapper/0	20:20:16	0
1872369	99	39	31,5	cyclictest	1858572	-21	kworker/u4:6-rpciod	20:30:37	1
1872369	99	39	30,7	cyclictest	1897333	-21	fschecks_count	20:45:22	1
1872369	99	37	31,4	cyclictest	0	-21	swapper/1	20:07:28	1
1872368	99	29	6,14	cyclictest	1872365	-21	cyclictest	19:09:59	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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