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 376 highest latencies:

System rack7slot2.osadl.org (updated Thu Apr 02, 2026 12:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1841123	99	112	105,5	cyclictest	1987923	-21	kworker/u4:4+events_unbound	12:01:07	1
1841123	99	108	101,5	cyclictest	1996852	-21	kworker/u4:0+events_unbound	11:41:01	1
1841123	99	97	91,4	cyclictest	1939276	-21	kworker/u4:14+events_unbound	10:35:52	1
1841123	99	97	91,4	cyclictest	1939276	-21	kworker/u4:14+events_unbound	10:35:52	1
1841123	99	91	83,6	cyclictest	2032052	-21	kworker/u4:0+events_unbound	12:21:09	1
1841123	99	90	82,5	cyclictest	1841015	-21	kworker/u4:0+events_unbound	07:25:13	1
1841123	99	90	72,6	cyclictest	1841020	-21	kworker/u4:7+events_unbound	07:10:01	1
1841123	99	89	78,5	cyclictest	1895059	-21	kworker/u4:4+events_unbound	10:00:48	1
1841121	99	89	37,31	cyclictest	1893023	-21	aten2__	09:40:14	0
1841123	99	85	65,8	cyclictest	1978989	-21	kworker/u4:15+events_unbound	11:20:00	1
1841123	99	84	77,5	cyclictest	2027590	-21	kworker/u4:6+events_unbound	12:16:08	1
1841123	99	84	75,7	cyclictest	1856717	-21	kworker/u4:2+events_unbound	08:50:37	1
1841121	99	84	26,48	cyclictest	1841089	-21	apt-get	07:10:01	0
1841121	99	82	37,25	cyclictest	53	-21	kswapd0	11:00:13	0
1841123	99	78	70,6	cyclictest	1952711	-21	kworker/u4:0+events_unbound	11:25:59	1
1841123	99	78	70,6	cyclictest	1952711	-21	kworker/u4:0+events_unbound	11:25:59	1
1841123	99	78	59,7	cyclictest	1992377	-21	kworker/u4:12+events_unbound	11:56:05	1
1841121	99	78	44,31	cyclictest	1898080	-21	diskmemload	09:45:23	0
1841121	99	76	31,42	cyclictest	0	-21	swapper/0	09:17:00	0
1841121	99	76	21,52	cyclictest	0	-21	swapper/0	10:35:31	0
1841121	99	76	21,52	cyclictest	0	-21	swapper/0	10:35:31	0
1841123	99	73	65,6	cyclictest	1908496	-21	kworker/u4:8+events_unbound	10:05:47	1
1841123	99	73	65,5	cyclictest	1859374	-21	kworker/u4:10+events_unbound	08:45:37	1
1841123	99	73	60,5	cyclictest	1930947	-21	kworker/u4:9+events_unbound	10:40:15	1
1841123	99	73	60,5	cyclictest	1930947	-21	kworker/u4:9+events_unbound	10:40:15	1
1841121	99	73	17,52	cyclictest	1982376	-21	find	11:20:36	0
1841121	99	73	17,52	cyclictest	1982376	-21	find	11:20:36	0
1841123	99	72	63,7	cyclictest	2032052	-21	kworker/u4:0+events_unbound	12:31:11	1
1841121	99	72	26,43	cyclictest	0	-21	swapper/0	11:15:38	0
1841123	99	71	53,10	cyclictest	2008133	-21	fschecks_count	11:50:18	1
1841121	99	71	36,32	cyclictest	1884382	-21	aten_r7power_vo	09:30:21	0
1841121	99	71	35,34	cyclictest	2025558	-21	aten2__	12:10:13	0
1841123	99	70	64,5	cyclictest	1845618	-21	kworker/u4:12+events_unbound	08:05:01	1
1841121	99	70	44,22	cyclictest	1865789	-21	diskmemload	12:25:08	0
1841123	99	69	61,6	cyclictest	1844155	-21	kworker/u4:4+events_unbound	07:45:00	1
1841121	99	69	2,14	cyclictest	1875110	-21	apt-get	09:20:10	0
1841123	99	68	52,6	cyclictest	1935422	-21	kworker/u4:12+events_unbound	10:30:01	1
1841123	99	68	52,6	cyclictest	1935422	-21	kworker/u4:12+events_unbound	10:30:01	1
1841121	99	68	5,22	cyclictest	2008467	-21	ssh	11:50:22	0
1841121	99	68	3,15	cyclictest	1928381	-21	ssh	10:20:10	0
1841121	99	67	30,35	cyclictest	2030220	-21	fschecks_count	12:15:16	0
1841121	99	67	23,41	cyclictest	0	-21	swapper/0	08:30:28	0
1841123	99	66	59,5	cyclictest	1926423	-21	kworker/u4:2+events_unbound	10:20:51	1
1841123	99	66	57,7	cyclictest	1957214	-21	kworker/u4:7+events_unbound	11:01:08	1
1841123	99	66	56,6	cyclictest	1930947	-21	kworker/u4:9+events_unbound	10:45:53	1
1841123	99	66	55,8	cyclictest	1957212	-21	kworker/u4:5+events_unbound	10:55:01	1
1841121	99	66	59,5	cyclictest	1841020	-21	kworker/u4:7+events_unbound	07:25:01	0
1841121	99	66	33,30	cyclictest	1866475	-21	fschecks_time	09:10:20	0
1841121	99	66	2,21	cyclictest	2013103	-21	ntpq	11:55:33	0
1841121	99	65	5,14	cyclictest	1990807	-21	ntpq	11:30:24	0
1841121	99	65	33,29	cyclictest	1999473	-21	gltestperf	11:40:21	0
1841121	99	65	32,30	cyclictest	0	-21	swapper/0	10:50:21	0
1841121	99	65	32,28	cyclictest	0	-21	swapper/0	11:48:45	0
1841121	99	65	3,16	cyclictest	2044012	-21	ntpq	12:30:33	0
1841121	99	65	30,31	cyclictest	0	-21	swapper/0	12:00:26	0
1841121	99	65	29,33	cyclictest	1863799	-21	gltestperf	09:00:19	0
1841121	99	65	23,39	cyclictest	256	50	irq/23-42890000.ethernet	12:20:17	0
1841123	99	64	57,5	cyclictest	1886708	-21	kworker/u4:2+events_unbound	10:11:08	1
1841123	99	64	56,6	cyclictest	1861913	-21	kworker/u4:14+events_unbound	09:15:42	1
1841121	99	64	5,12	cyclictest	1906230	-21	apt-get	09:55:13	0
1841121	99	64	31,30	cyclictest	1886708	-21	kworker/u4:2-rpciod	09:50:22	0
1841121	99	64	30,30	cyclictest	0	-21	swapper/0	10:05:34	0
1841121	99	64	2,12	cyclictest	1879652	-21	apt-get	09:25:12	0
1841121	99	63	46,15	cyclictest	1892689	-21	munin-run	09:40:00	0
1841121	99	63	4,21	cyclictest	1950487	-21	ssh	10:45:12	0
1841121	99	63	31,28	cyclictest	0	-21	swapper/0	11:10:28	0
1841123	99	62	54,5	cyclictest	1872957	-21	kworker/u4:0-events_unbound	09:30:58	1
1841121	99	62	30,29	cyclictest	0	-21	swapper/0	10:25:35	0
1841121	99	62	30,29	cyclictest	0	-21	swapper/0	10:25:35	0
1841121	99	62	29,31	cyclictest	1848133	-21	ntp_kernel_err	07:55:19	0
1841121	99	62	29,30	cyclictest	0	-21	swapper/0	11:35:30	0
1841121	99	62	28,30	cyclictest	0	-21	swapper/0	09:05:15	0
1841121	99	62	2,16	cyclictest	1845175	-21	ntpq	07:35:25	0
1841123	99	61	47,6	cyclictest	1856717	-21	kworker/u4:2+events_unbound	08:42:59	1
1841121	99	61	52,6	cyclictest	1856720	-21	kworker/u4:7+events_unbound	08:40:36	0
1841121	99	61	29,30	cyclictest	1862400	-21	fschecks_time	08:55:18	0
1841121	99	61	28,29	cyclictest	0	-21	swapper/0	08:25:01	0
1841121	99	61	24,33	cyclictest	0	-21	swapper/0	10:55:20	0
1841121	99	61	2,16	cyclictest	1846824	-21	ps	07:45:35	0
1841121	99	61	2,16	cyclictest	1843665	-21	ntpq	07:25:22	0
1841121	99	61	2,14	cyclictest	1968435	-21	diskstats	11:05:18	0
1841121	99	61	2,14	cyclictest	1968435	-21	diskstats	11:05:18	0
1841121	99	61	18,5	cyclictest	256	50	irq/23-42890000.ethernet	10:15:26	0
1841123	99	60	54,4	cyclictest	2023789	-21	kworker/u4:2+events_unbound	12:11:10	1
1841121	99	60	27,30	cyclictest	0	-21	swapper/0	10:05:00	0
1841121	99	60	24,33	cyclictest	1841794	-21	fschecks_count	07:15:17	0
1841123	99	59	52,5	cyclictest	1882177	-21	kworker/u4:10+events_unbound	09:50:46	1
1841121	99	59	32,25	cyclictest	1904021	-21	kworker/u4:13-rpciod	10:30:30	0
1841121	99	59	30,26	cyclictest	1996852	-21	kworker/u4:0-nfsiod	12:05:36	0
1841121	99	59	28,29	cyclictest	2048821	-21	unixbench_singl	12:35:39	0
1841121	99	59	25,31	cyclictest	0	-21	swapper/0	10:40:20	0
1841121	99	59	25,31	cyclictest	0	-21	swapper/0	10:40:20	0
1841121	99	59	23,32	cyclictest	0	-21	swapper/0	10:10:20	0
1841121	99	59	23,32	cyclictest	0	-21	swapper/0	08:50:23	0
1841121	99	59	21,35	cyclictest	1852824	-21	kworker/u4:2	08:20:01	0
1841121	99	59	21,35	cyclictest	1852824	-21	kworker/u4:2	08:20:00	0
1841121	99	59	16,4	cyclictest	256	50	irq/23-42890000.ethernet	08:05:12	0
1841123	99	58	51,5	cyclictest	1855357	-21	kworker/u4:3+events_unbound	08:32:01	1
1841121	99	58	19,37	cyclictest	1986046	-21	ssh	11:25:17	0
1841121	99	58	19,37	cyclictest	1986046	-21	ssh	11:25:17	0
1841121	99	57	3,15	cyclictest	1851051	-21	ps	08:10:35	0
1841123	99	56	49,5	cyclictest	2045531	-21	kworker/u4:6+events_unbound	12:35:02	1
1841123	99	56	47,6	cyclictest	1938161	-21	/usr/sbin/munin	10:30:34	1
1841121	99	56	48,5	cyclictest	1839490	-21	kworker/u4:8+events_unbound	07:15:01	0
1841121	99	56	26,27	cyclictest	1841019	-21	kworker/u4:6-xprtiod	07:44:59	0
1841121	99	56	17,36	cyclictest	0	-21	swapper/0	08:25:19	0
1841121	99	56	14,9	cyclictest	1858231	-21	latency_hist	08:40:01	0
1841123	99	55	47,6	cyclictest	1882177	-21	kworker/u4:10+events_unbound	09:49:00	1
1841121	99	55	3,10	cyclictest	1844362	-21	modprobe	07:35:00	0
1841121	99	54	14,6	cyclictest	1860812	-21	sed	08:50:02	0
1841123	99	53	47,5	cyclictest	2018667	-21	kworker/u4:13+events_unbound	12:06:00	1
1841123	99	53	46,5	cyclictest	1957212	-21	kworker/u4:5+events_unbound	11:10:02	1
1841123	99	52	45,5	cyclictest	1854711	-21	gltestperf	08:25:19	1
1841123	99	51	44,5	cyclictest	1886707	-21	kworker/u4:1+events_unbound	09:42:59	1
1841123	99	51	44,5	cyclictest	1880576	-21	/usr/sbin/munin	09:25:36	1
1841123	99	51	36,12	cyclictest	1848702	-21	munin-run	08:00:01	1
1841123	99	50	44,4	cyclictest	1959531	-21	/usr/sbin/munin	10:55:16	1
1841123	99	50	43,5	cyclictest	1917439	-21	kworker/u4:1+events_unbound	10:17:00	1
1841123	99	50	41,7	cyclictest	1846378	-21	fschecks_count	07:45:18	1
1841123	99	49	42,5	cyclictest	2004985	-21	ssh	11:46:01	1
1841123	99	48	41,5	cyclictest	1906516	-21	df	09:55:16	1
1841123	99	48	41,5	cyclictest	1851093	-21	sendmail_mailqu	08:10:35	1
1841123	99	48	40,6	cyclictest	1856720	-21	kworker/u4:7+events_unbound	08:35:03	1
1841123	99	48	40,5	cyclictest	1865765	-21	cron	09:10:00	1
1841123	99	47	39,5	cyclictest	0	-21	swapper/1	09:35:14	1
1841123	99	46	38,6	cyclictest	1848659	-21	kworker/u4:2+events_unbound	08:15:03	1
1841123	99	46	38,6	cyclictest	1848659	-21	kworker/u4:2+events_unbound	08:15:02	1
1841123	99	46	38,5	cyclictest	0	-21	swapper/1	12:26:22	1
1841123	99	46	37,7	cyclictest	1981810	-21	fschecks_time	11:20:19	1
1841123	99	46	37,7	cyclictest	1981810	-21	fschecks_time	11:20:19	1
1841123	99	46	24,10	cyclictest	1961707	-21	kworker/u4:10+events_unbound	11:05:25	1
1841123	99	46	24,10	cyclictest	1961707	-21	kworker/u4:10+events_unbound	11:05:25	1
1841123	99	45	39,4	cyclictest	1998896	-21	latency_hist	11:40:02	1
1841123	99	45	39,4	cyclictest	1844834	-21	fschecks_time	07:35:14	1
1841123	99	45	34,8	cyclictest	1864489	-21	cron	09:04:59	1
1841123	99	45	18,14	cyclictest	0	-21	swapper/1	09:10:38	1
1841123	99	44	38,4	cyclictest	1875299	-21	aten_r7power_vo	09:20:16	1
1841123	99	44	35,6	cyclictest	1841867	-21	fschecks_time	07:15:17	1
1841123	99	44	32,8	cyclictest	1847406	-21	kworker/u4:1	07:55:00	1
1841123	99	43	37,4	cyclictest	1991217	-21	switchtime	11:30:38	1
1841123	99	43	33,7	cyclictest	1849357	-21	fschecks_count	08:05:15	1
1841121	99	43	2,9	cyclictest	1847404	-21	modprobe	07:55:00	0
1841123	99	42	33,7	cyclictest	0	-21	swapper/1	08:20:21	1
1841123	99	41	34,5	cyclictest	1862369	-21	fschecks_count	08:55:17	1
1841123	99	41	34,5	cyclictest	0	-21	swapper/1	07:30:15	1
1841121	99	41	24,15	cyclictest	1847197	-21	kworker/u4:7-rpciod	08:05:00	0
1841123	99	40	27,6	cyclictest	1841020	-21	kworker/u4:7+events_unbound	07:10:13	1
1841123	99	29	20,7	cyclictest	0	-21	swapper/1	07:25:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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