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 highest latencies:

System rack7slot2.osadl.org (updated Sat Nov 15, 2025 00:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1872284	99	136	127,7	cyclictest	2022312	-21	kworker/u4:2+events_unbound	23:42:43	0
1872284	99	134	126,6	cyclictest	1926208	-21	kworker/u4:0+events_unbound	22:02:12	0
1872284	99	134	125,6	cyclictest	1994238	-21	kworker/u4:12+events_unbound	23:02:36	0
1872284	99	130	121,7	cyclictest	1962499	-21	kworker/u4:14+events_unbound	22:37:34	0
1872284	99	124	112,10	cyclictest	1998303	-21	kworker/u4:8+events_unbound	23:07:36	0
1872284	99	121	112,6	cyclictest	2038561	-21	kworker/u4:2+events_unbound	00:13:34	0
1872284	99	115	95,7	cyclictest	1998303	-21	kworker/u4:8+events_unbound	23:37:32	0
1872284	99	110	104,4	cyclictest	2062386	-21	kworker/u4:2+events_unbound	00:32:06	0
1872284	99	106	99,5	cyclictest	1954359	-21	kworker/u4:12+events_unbound	22:27:18	0
1872284	99	100	93,5	cyclictest	2038562	-21	kworker/u4:3+events_unbound	00:08:32	0
1872284	99	100	92,6	cyclictest	1880053	-21	kworker/u4:14+events_unbound	20:06:51	0
1872284	99	99	92,5	cyclictest	2070085	-21	kworker/u4:7+events_unbound	00:38:43	0
1872284	99	99	84,13	cyclictest	1982147	-21	kworker/u4:5+events_unbound	22:57:37	0
1872284	99	98	92,4	cyclictest	1877403	-21	kworker/u4:8+events_unbound	20:41:57	0
1872284	99	98	91,5	cyclictest	1877403	-21	kworker/u4:8+events_unbound	19:36:45	0
1872284	99	97	90,5	cyclictest	1868539	-21	kworker/u4:8+events_unbound	19:16:40	0
1872284	99	96	89,5	cyclictest	2030450	-21	kworker/u4:0+events_unbound	23:51:53	0
1872284	99	96	88,6	cyclictest	1887781	-21	kworker/u4:1+events_unbound	20:36:54	0
1872284	99	95	88,5	cyclictest	2002375	-21	kworker/u4:0+events_unbound	23:17:28	0
1872284	99	95	85,8	cyclictest	2054146	-21	kworker/u4:15+events_unbound	00:28:40	0
1872284	99	93	86,5	cyclictest	1892942	-21	kworker/u4:5+events_unbound	21:17:04	0
1872284	99	93	85,6	cyclictest	2030450	-21	kworker/u4:0+events_unbound	00:23:40	0
1872284	99	90	82,6	cyclictest	1978067	-21	kworker/u4:3+events_unbound	22:47:36	0
1872284	99	90	75,7	cyclictest	1899460	-21	kworker/u4:2+events_unbound	20:51:59	0
1872284	99	84	73,5	cyclictest	1885193	-21	kworker/u4:20+events_unbound	19:56:47	0
1872285	99	82	73,7	cyclictest	2010528	-21	kworker/u4:17+events_unbound	23:46:07	1
1872284	99	82	71,5	cyclictest	1887781	-21	kworker/u4:1+events_unbound	20:31:54	0
1872284	99	81	75,4	cyclictest	1881360	-21	kworker/u4:15+events_unbound	19:46:44	0
1872284	99	78	71,5	cyclictest	1880053	-21	kworker/u4:14+events_unbound	20:46:58	0
1872284	99	77	70,5	cyclictest	1954354	-21	kworker/u4:6+events_unbound	22:22:17	0
1872284	99	77	70,5	cyclictest	1903332	-21	kworker/u4:22+events_unbound	21:07:01	0
1872285	99	76	68,6	cyclictest	1892942	-21	kworker/u4:5+events_unbound	21:42:09	1
1872285	99	75	69,4	cyclictest	2022312	-21	kworker/u4:2+events_unbound	23:42:31	1
1872285	99	74	64,7	cyclictest	1998303	-21	kworker/u4:8+events_unbound	23:32:30	1
1872284	99	72	65,5	cyclictest	1950314	-21	kworker/u4:1+events_unbound	22:12:15	0
1872284	99	72	65,5	cyclictest	1950314	-21	kworker/u4:1+events_unbound	22:12:14	0
1872284	99	72	65,5	cyclictest	1868536	-21	kworker/u4:4+events_unbound	20:26:52	0
1872284	99	72	55,6	cyclictest	1994238	-21	kworker/u4:12+events_unbound	23:20:04	0
1872284	99	72	52,8	cyclictest	1887781	-21	kworker/u4:1+events_unbound	21:35:04	0
1872285	99	71	56,6	cyclictest	1892942	-21	kworker/u4:5+events_unbound	20:26:45	1
1872285	99	70	64,4	cyclictest	1994238	-21	kworker/u4:12+events_unbound	23:12:27	1
1872285	99	69	59,7	cyclictest	53	-21	kswapd0	21:40:01	1
1872285	99	68	61,5	cyclictest	1868536	-21	kworker/u4:4+events_unbound	19:21:42	1
1872284	99	68	43,20	cyclictest	53	-21	kswapd0	23:10:08	0
1872284	99	67	59,6	cyclictest	1926211	-21	kworker/u4:8+events_unbound	21:55:02	0
1872284	99	67	59,6	cyclictest	1881361	-21	kworker/u4:16+events_unbound	20:16:50	0
1872284	99	67	48,6	cyclictest	1913809	-21	kworker/u4:4+events_unbound	21:33:37	0
1872285	99	66	58,6	cyclictest	1877403	-21	kworker/u4:8+events_unbound	19:27:38	1
1872285	99	65	55,7	cyclictest	1937990	-21	kworker/u4:12+events_unbound	21:52:12	1
1872285	99	61	52,6	cyclictest	1902050	-21	kworker/u4:21+events_unbound	21:57:11	1
1872284	99	61	54,5	cyclictest	1889062	-21	kworker/u4:10+events_unbound	20:21:52	0
1872284	99	61	53,6	cyclictest	1850387	-21	kworker/u4:13+events_unbound	19:21:44	0
1872285	99	60	53,5	cyclictest	1876124	-21	kworker/u4:6+events_unbound	19:31:40	1
1872285	99	59	54,3	cyclictest	1913808	-21	kworker/u4:3+events_unbound	21:22:05	1
1872284	99	59	52,5	cyclictest	1878684	-21	kworker/u4:9+events_unbound	19:51:47	0
1872284	99	59	46,6	cyclictest	1926208	-21	kworker/u4:0+events_unbound	22:05:45	0
1872284	99	58	48,8	cyclictest	379	-21	dbus-daemon	23:32:28	0
1872284	99	58	45,10	cyclictest	0	-21	swapper/0	00:00:11	0
1872285	99	57	45,7	cyclictest	0	-21	swapper/1	23:50:11	1
1872285	99	56	48,5	cyclictest	1998384	-21	ssh	23:07:22	1
1872285	99	56	46,8	cyclictest	398	-21	systemd-logind	20:56:59	1
1872285	99	56	46,8	cyclictest	398	-21	systemd-logind	20:56:58	1
1872284	99	56	40,6	cyclictest	1954359	-21	kworker/u4:12+events_unbound	22:32:17	0
1872285	99	54	45,6	cyclictest	1952821	-21	uname	22:10:22	1
1872285	99	54	45,6	cyclictest	1952821	-21	uname	22:10:21	1
1872285	99	54	19,18	cyclictest	0	-21	swapper/1	23:55:33	1
1872285	99	53	46,5	cyclictest	1882301	-21	sendmail_mailqu	19:45:40	1
1872285	99	53	44,7	cyclictest	1873502	-21	systemd	19:11:38	1
1872285	99	53	44,6	cyclictest	1883911	-21	systemd	19:51:45	1
1872285	99	53	42,7	cyclictest	1872282	-21	cyclictest	22:51:27	1
1872284	99	53	46,5	cyclictest	1850387	-21	kworker/u4:13+events_unbound	19:34:45	0
1872284	99	53	45,6	cyclictest	1954355	-21	kworker/u4:8+events_unbound	22:41:38	0
1872284	99	53	42,9	cyclictest	1915882	-21	aten_r7power_cu	21:25:17	0
1872284	99	53	37,14	cyclictest	0	-21	swapper/0	21:40:12	0
1872285	99	52	45,5	cyclictest	1903334	-21	systemd	21:07:01	1
1872285	99	52	43,7	cyclictest	1921968	-21	systemd	21:32:04	1
1872285	99	52	43,7	cyclictest	1902053	-21	systemd	21:02:00	1
1872285	99	52	42,7	cyclictest	0	-21	swapper/1	22:00:33	1
1872285	99	52	39,9	cyclictest	0	-21	swapper/1	21:25:36	1
1872285	99	52	17,11	cyclictest	0	-21	swapper/1	00:00:39	1
1872284	99	52	42,8	cyclictest	2029914	-21	sshd	23:46:05	0
1872284	99	52	33,16	cyclictest	2013512	-21	sh	23:25:45	0
1872285	99	51	43,6	cyclictest	1981024	-21	uname	22:45:36	1
1872285	99	51	43,6	cyclictest	1872282	-21	cyclictest	00:38:31	1
1872285	99	51	42,6	cyclictest	2064600	-21	cpu	00:30:18	1
1872285	99	51	41,7	cyclictest	1890830	-21	fschecks_count	20:20:19	1
1872285	99	51	41,6	cyclictest	0	-21	swapper/1	21:15:28	1
1872285	99	50	44,4	cyclictest	37	-21	kcompactd0	22:57:20	1
1872285	99	50	42,6	cyclictest	1874455	-21	sendmail_mailqu	19:15:35	1
1872285	99	50	41,7	cyclictest	1886500	-21	systemd	20:01:47	1
1872285	99	50	41,6	cyclictest	1904609	-21	sendmail_mailqu	21:10:38	1
1872285	99	50	39,6	cyclictest	1954359	-21	kworker/u4:12-rpciod	22:30:41	1
1872285	99	50	38,7	cyclictest	2020073	-21	apt-get	23:35:06	1
1872285	99	50	31,12	cyclictest	0	-21	swapper/1	22:15:40	1
1872284	99	50	43,5	cyclictest	2046513	-21	kworker/u4:8+events_unbound	00:19:38	0
1872284	99	50	42,5	cyclictest	2037401	-21	switchtime	23:55:39	0
1872285	99	49	39,7	cyclictest	2004373	-21	/usr/sbin/munin	23:15:19	1
1872284	99	49	42,5	cyclictest	1899464	-21	kworker/u4:15+events_unbound	21:00:01	0
1872285	99	48	9,34	cyclictest	2057082	-21	ssh	00:20:29	1
1872285	99	48	41,5	cyclictest	1894223	-21	kworker/u4:12+events_unbound	20:40:50	1
1872285	99	48	40,6	cyclictest	2038561	-21	kworker/u4:2+events_unbound	00:05:22	1
1872285	99	48	38,7	cyclictest	1894234	-21	systemd	20:31:53	1
1872285	99	48	36,9	cyclictest	2009254	-21	/usr/sbin/munin	23:20:40	1
1872285	99	48	34,11	cyclictest	0	-21	swapper/1	21:45:17	1
1872285	99	48	31,13	cyclictest	0	-21	swapper/1	20:14:59	1
1872284	99	48	40,6	cyclictest	1903976	-21	fschecks_count	21:10:20	0
1872284	99	48	40,5	cyclictest	1900712	-21	unixbench_singl	20:55:39	0
1872284	99	48	40,5	cyclictest	1900712	-21	unixbench_singl	20:55:39	0
1872285	99	47	40,5	cyclictest	1948408	-21	aten_r7power_po	22:05:17	1
1872285	99	47	38,7	cyclictest	1972470	-21	fschecks_count	22:35:21	1
1872285	99	47	36,8	cyclictest	0	-21	swapper/1	22:20:13	1
1872285	99	47	14,11	cyclictest	0	-21	swapper/1	00:25:33	1
1872284	99	47	40,5	cyclictest	1912024	-21	cpu	21:20:22	0
1872285	99	46	38,6	cyclictest	2053290	-21	switchtime	00:15:39	1
1872285	99	46	36,8	cyclictest	2016135	-21	latency_hist	23:30:02	1
1872285	99	45	38,5	cyclictest	2049198	-21	mailstats	00:10:38	1
1872285	99	45	38,5	cyclictest	1967936	-21	munin-plugin-st	22:30:00	1
1872285	99	45	37,6	cyclictest	1890117	-21	threads	20:15:37	1
1872285	99	45	16,5	cyclictest	27	1	ktimers/1	23:00:19	1
1872285	99	45	14,6	cyclictest	27	1	ktimers/1	22:42:18	1
1872285	99	45	13,10	cyclictest	0	-21	swapper/1	19:10:02	1
1872284	99	45	38,5	cyclictest	1932621	-21	gltestperf	21:45:23	0
1872284	99	45	34,5	cyclictest	1860859	-21	kworker/u4:7+events_unbound	20:03:45	0
1872284	99	45	23,6	cyclictest	0	-21	swapper/0	21:50:26	0
1872284	99	44	36,5	cyclictest	1877420	-21	cron	19:29:59	0
1872284	99	44	34,8	cyclictest	1984372	-21	cpu	22:50:17	0
1872285	99	43	35,6	cyclictest	1879162	-21	sed	19:35:22	1
1872285	99	43	32,7	cyclictest	0	-21	swapper/1	20:05:20	1
1872284	99	43	34,6	cyclictest	0	-21	swapper/0	22:15:29	0
1872285	99	42	32,7	cyclictest	1899618	-21	latency_hist	20:55:02	1
1872284	99	42	35,5	cyclictest	1868538	-21	kworker/u4:6+events_unbound	19:10:01	0
1872284	99	42	33,6	cyclictest	0	-21	swapper/0	19:40:39	0
1872284	99	41	29,9	cyclictest	0	-21	swapper/0	19:10:01	0
1872285	99	40	33,5	cyclictest	1887781	-21	kworker/u4:1+events_unbound	20:39:11	1
1872285	99	40	31,7	cyclictest	1885231	-21	kworker/u4:14	20:00:00	1
1872285	99	40	27,6	cyclictest	1883920	-21	kworker/u4:19+events_unbound	20:47:47	1
1872285	99	39	29,6	cyclictest	0	-21	swapper/1	19:40:40	1
1872284	99	39	20,15	cyclictest	0	-21	swapper/0	20:15:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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