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 Tue Jun 02, 2026 12:44:13)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1774766	99	91	83,6	cyclictest	1900208	-21	kworker/u4:12+events_unbound	11:00:29	1
1774765	99	90	72,8	cyclictest	1843625	-21	kworker/u4:13+events_unbound	12:00:48	0
1774765	99	89	79,7	cyclictest	1783755	-21	kworker/u4:4+events_unbound	08:55:00	0
1774765	99	89	79,7	cyclictest	1783755	-21	kworker/u4:4+events_unbound	08:54:59	0
1774766	99	87	79,5	cyclictest	1913446	-21	kworker/u4:4+events_unbound	11:15:30	1
1774765	99	86	79,5	cyclictest	1874335	-21	kworker/u4:14+events_unbound	10:30:21	0
1774765	99	86	79,5	cyclictest	1874335	-21	kworker/u4:14+events_unbound	10:30:21	0
1774766	99	84	76,6	cyclictest	1952377	-21	kworker/u4:6+events_unbound	12:10:50	1
1774766	99	82	73,6	cyclictest	1865457	-21	kworker/u4:2+events_unbound	10:35:22	1
1774765	99	80	73,5	cyclictest	1790222	-21	kworker/u4:16+events_unbound	08:09:49	0
1774766	99	79	68,8	cyclictest	53	-21	kswapd0	10:20:19	1
1774766	99	79	68,8	cyclictest	53	-21	kswapd0	10:20:18	1
1774766	99	79	60,6	cyclictest	1922302	-21	kworker/u4:10+events_unbound	11:25:33	1
1774765	99	78	73,3	cyclictest	1788948	-21	kworker/u4:6+events_unbound	08:24:50	0
1774765	99	78	72,4	cyclictest	1775984	-21	kworker/u4:1+events_unbound	07:29:41	0
1774765	99	78	52,10	cyclictest	53	-21	kswapd0	07:50:23	0
1774765	99	76	68,6	cyclictest	1799176	-21	kworker/u4:20+events_unbound	09:15:02	0
1774765	99	75	66,6	cyclictest	1779830	-21	kworker/u4:14+events_unbound	07:59:49	0
1774766	99	71	63,6	cyclictest	1865456	-21	kworker/u4:1+events_unbound	10:40:24	1
1774766	99	71	60,8	cyclictest	1843625	-21	kworker/u4:13+events_unbound	11:30:33	1
1774765	99	71	62,6	cyclictest	1783755	-21	kworker/u4:4+events_unbound	08:34:55	0
1774765	99	70	63,5	cyclictest	1788948	-21	kworker/u4:6+events_unbound	08:30:01	0
1774766	99	66	52,6	cyclictest	1799176	-21	kworker/u4:20+events_unbound	09:30:07	1
1774766	99	65	58,5	cyclictest	1917867	-21	kworker/u4:7+events_unbound	11:55:42	1
1774766	99	65	57,6	cyclictest	1805551	-21	kworker/u4:10+events_unbound	09:25:03	1
1774765	99	65	50,12	cyclictest	1963437	-21	fschecks_time	12:10:19	0
1774765	99	65	44,17	cyclictest	1843625	-21	kworker/u4:13-rpciod	12:31:10	0
1774765	99	64	49,6	cyclictest	1887583	-21	kworker/u4:6+events_unbound	10:45:02	0
1774765	99	63	56,5	cyclictest	1965597	-21	kworker/u4:1+events_unbound	12:15:51	0
1774765	99	63	41,6	cyclictest	1982547	-21	kworker/u4:0+events_unbound	12:40:00	0
1774766	99	62	55,4	cyclictest	0	-21	swapper/1	11:20:28	1
1774766	99	62	55,4	cyclictest	0	-21	swapper/1	11:20:27	1
1774765	99	62	51,8	cyclictest	1821334	-21	kworker/u4:14+events_unbound	09:50:11	0
1774765	99	62	41,18	cyclictest	1791952	-21	fschecks_count	08:15:18	0
1774765	99	61	53,6	cyclictest	1775984	-21	kworker/u4:1+events_unbound	07:19:41	0
1774765	99	61	53,6	cyclictest	1775984	-21	kworker/u4:1+events_unbound	07:19:40	0
1774766	99	60	53,5	cyclictest	1834723	-21	kworker/u4:0+events_unbound	09:45:09	1
1774766	99	60	46,11	cyclictest	1796363	-21	switchtime	08:30:36	1
1774765	99	60	51,6	cyclictest	53	-21	kswapd0	10:20:20	0
1774765	99	60	51,6	cyclictest	53	-21	kswapd0	10:20:19	0
1774765	99	60	40,18	cyclictest	1840836	-21	ssh	09:50:02	0
1774766	99	59	52,5	cyclictest	1790220	-21	kworker/u4:12+events_unbound	08:40:02	1
1774766	99	59	49,7	cyclictest	53	-21	kswapd0	11:35:35	1
1774765	99	59	53,4	cyclictest	1909038	-21	kworker/u4:3+events_unbound	11:12:00	0
1774765	99	59	52,5	cyclictest	1909037	-21	kworker/u4:2+events_unbound	11:10:01	0
1774765	99	59	51,6	cyclictest	1834723	-21	kworker/u4:0+events_unbound	10:10:03	0
1774765	99	59	50,7	cyclictest	1775984	-21	kworker/u4:1+events_unbound	08:14:51	0
1774765	99	59	46,8	cyclictest	1805587	-21	diskmemload	10:40:08	0
1774765	99	59	31,24	cyclictest	1933180	-21	cut	11:35:21	0
1774766	99	58	50,5	cyclictest	1843625	-21	kworker/u4:13+events_unbound	10:25:21	1
1774765	99	58	50,6	cyclictest	1839181	-21	kworker/u4:8+events_unbound	10:17:02	0
1774766	99	57	50,5	cyclictest	1943631	-21	kworker/u4:16+events_unbound	11:55:02	1
1774766	99	57	49,5	cyclictest	1812384	-21	kworker/u4:4+events_unbound	09:35:09	1
1774765	99	57	46,9	cyclictest	1920275	-21	fschecks_time	11:20:21	0
1774765	99	57	46,9	cyclictest	1920275	-21	fschecks_time	11:20:20	0
1774766	99	56	5,39	cyclictest	1805587	-21	diskmemload	12:15:13	1
1774765	99	56	47,6	cyclictest	1959382	-21	/usr/sbin/munin	12:05:24	0
1774765	99	56	38,16	cyclictest	1785058	-21	munin-plugin-st	07:50:00	0
1774766	99	55	47,5	cyclictest	1917867	-21	kworker/u4:7+events_unbound	12:05:48	1
1774766	99	55	37,5	cyclictest	1775984	-21	kworker/u4:1+events_unbound	07:40:02	1
1774766	99	55	37,5	cyclictest	1775984	-21	kworker/u4:1+events_unbound	07:40:02	1
1774765	99	55	48,5	cyclictest	1778564	-21	kworker/u4:13+events_unbound	07:39:45	0
1774765	99	55	48,5	cyclictest	1778564	-21	kworker/u4:13+events_unbound	07:39:44	0
1774766	99	54	45,6	cyclictest	0	-21	swapper/1	12:00:10	1
1774765	99	54	47,5	cyclictest	1799176	-21	kworker/u4:20+events_unbound	09:29:59	0
1774765	99	54	46,6	cyclictest	1887583	-21	kworker/u4:6+events_unbound	10:55:00	0
1774765	99	54	42,8	cyclictest	1835663	-21	sh	09:43:51	0
1774765	99	54	40,12	cyclictest	1821334	-21	kworker/u4:14+events_unbound	10:01:46	0
1774765	99	54	40,11	cyclictest	1946113	-21	fschecks_count	11:50:21	0
1774765	99	54	3,31	cyclictest	1814506	-21	apt-get	09:20:11	0
1774765	99	53	45,6	cyclictest	1961191	-21	kworker/u4:4+events_unbound	12:30:00	0
1774766	99	52	45,5	cyclictest	1865456	-21	kworker/u4:1+events_unbound	10:19:45	1
1774766	99	52	41,8	cyclictest	1860951	-21	ssh	10:11:59	1
1774765	99	52	45,5	cyclictest	1797877	-21	kworker/u4:15+events_unbound	08:45:02	0
1774766	99	51	44,5	cyclictest	1985741	-21	run-parts	12:35:40	1
1774765	99	51	44,5	cyclictest	1777754	-21	/usr/sbin/munin	07:20:19	0
1774765	99	51	43,6	cyclictest	1931103	-21	kworker/u4:5+events_unbound	11:40:13	0
1774765	99	51	43,6	cyclictest	1812384	-21	kworker/u4:4+events_unbound	09:59:01	0
1774765	99	51	37,5	cyclictest	1753795	-21	kworker/u4:8+events_unbound	07:34:42	0
1774766	99	50	43,5	cyclictest	1777254	-21	kworker/u4:10+events_unbound	07:35:00	1
1774766	99	50	42,6	cyclictest	0	-21	swapper/1	09:55:15	1
1774765	99	50	43,5	cyclictest	1799176	-21	kworker/u4:20+events_unbound	09:30:03	0
1774765	99	50	42,6	cyclictest	1950730	-21	/usr/sbin/munin	11:55:25	0
1774765	99	50	28,19	cyclictest	0	-21	swapper/0	11:00:35	0
1774765	99	50	25,7	cyclictest	1865456	-21	kworker/u4:1+events_unbound	10:25:35	0
1774766	99	49	45,2	cyclictest	1830265	-21	kworker/u4:1+events_unbound	09:40:07	1
1774766	99	49	43,4	cyclictest	1798348	-21	fschecks_count	08:40:18	1
1774766	99	49	41,6	cyclictest	1890756	-21	/usr/sbin/munin	10:45:42	1
1774766	99	49	41,6	cyclictest	1788953	-21	kworker/u4:9+events_unbound	08:20:01	1
1774766	99	49	33,6	cyclictest	1777253	-21	kworker/u4:7+events_unbound	07:45:00	1
1774765	99	49	42,5	cyclictest	1805551	-21	kworker/u4:10+events_unbound	09:19:00	0
1774765	99	49	41,6	cyclictest	1804310	-21	cron	09:05:00	0
1774765	99	49	41,6	cyclictest	1775984	-21	kworker/u4:1+events_unbound	08:39:57	0
1774765	99	49	39,7	cyclictest	1916061	-21	/usr/sbin/munin	11:15:22	0
1774765	99	49	28,7	cyclictest	1799176	-21	kthreadd	08:41:41	0
1774766	99	48	41,5	cyclictest	1807115	-21	unixbench-2d	09:10:40	1
1774766	99	48	41,5	cyclictest	1785310	-21	apt-get	07:50:11	1
1774766	99	48	40,6	cyclictest	1812381	-21	kworker/u4:0+rpciod	09:20:51	1
1774766	99	48	40,5	cyclictest	1855096	-21	rm	10:05:30	1
1774766	99	48	38,6	cyclictest	1789891	-21	find	08:05:34	1
1774765	99	48	40,6	cyclictest	1821334	-21	kworker/u4:14+events_unbound	09:39:00	0
1774766	99	47	40,5	cyclictest	1980978	-21	uname	12:30:24	1
1774765	99	47	40,5	cyclictest	1805597	-21	munin-run	09:10:01	0
1774765	99	47	39,6	cyclictest	1782923	-21	fschecks_count	07:40:21	0
1774765	99	47	38,6	cyclictest	1803054	-21	grep	09:00:00	0
1774765	99	47	34,6	cyclictest	1805587	-21	diskmemload	10:05:27	0
1774766	99	46	39,5	cyclictest	1850380	-21	gltestperf	10:00:21	1
1774766	99	46	39,5	cyclictest	1843625	-21	kworker/u4:13+events_unbound	11:47:45	1
1774766	99	46	39,5	cyclictest	1800117	-21	sendmail_mailqu	08:45:37	1
1774766	99	46	38,6	cyclictest	1894485	-21	ntp_kernel_pll_	10:50:26	1
1774766	99	46	37,6	cyclictest	0	-21	swapper/1	11:05:34	1
1774766	99	46	37,6	cyclictest	0	-21	swapper/1	10:30:07	1
1774766	99	46	37,6	cyclictest	0	-21	swapper/1	10:30:06	1
1774766	99	46	36,8	cyclictest	1792761	-21	kworker/u4:2+events_unbound	08:25:01	1
1774765	99	46	38,6	cyclictest	1898487	-21	fschecks_time	10:55:20	0
1774765	99	46	24,20	cyclictest	1775153	-21	fschecks_count	07:10:20	0
1774766	99	45	38,5	cyclictest	1911441	-21	fschecks_count	11:10:19	1
1774766	99	45	37,6	cyclictest	0	-21	swapper/1	11:40:37	1
1774766	99	45	37,6	cyclictest	0	-21	swapper/1	07:25:26	1
1774766	99	45	37,5	cyclictest	1898540	-21	fschecks_time	10:55:21	1
1774765	99	45	37,5	cyclictest	1939242	-21	kworker/u4:15-rpciod	11:45:28	0
1774765	99	45	23,19	cyclictest	0	-21	swapper/0	10:35:22	0
1774765	99	45	21,17	cyclictest	256	50	irq/23-42890000.ethernet	12:20:33	0
1774766	99	44	37,5	cyclictest	1802659	-21	sendmail_mailqu	08:55:37	1
1774766	99	44	37,5	cyclictest	1776067	-21	latency_hist	07:15:01	1
1774766	99	44	35,5	cyclictest	1785077	-21	grep	07:50:02	1
1774765	99	44	32,7	cyclictest	0	-21	swapper/0	11:30:25	0
1774766	99	43	36,5	cyclictest	1811438	-21	mailstats	09:15:46	1
1774766	99	43	3,33	cyclictest	1976977	-21	ssh	12:25:37	1
1774765	99	43	32,8	cyclictest	1787951	-21	aten_r7power_en	08:00:15	0
1774765	99	43	31,7	cyclictest	0	-21	swapper/0	11:25:36	0
1774766	99	42	36,4	cyclictest	1788949	-21	kworker/u4:7-rpciod	09:50:34	1
1774766	99	42	35,5	cyclictest	1971705	-21	find	12:20:11	1
1774766	99	42	33,7	cyclictest	1803266	-21	aten_r7power_cu	09:00:16	1
1774766	99	41	33,6	cyclictest	1783755	-21	kworker/u4:4+rpciod	08:10:32	1
1774766	99	40	32,6	cyclictest	1783755	-21	kworker/u4:4+rpciod	07:55:22	1
1774766	99	40	32,5	cyclictest	0	-21	swapper/1	08:50:36	1
1774766	99	40	32,5	cyclictest	0	-21	swapper/1	08:50:35	1
1774766	99	40	30,7	cyclictest	1805683	-21	latency_hist	09:10:01	1
1774766	99	40	30,7	cyclictest	0	-21	swapper/1	07:15:17	1
1774766	99	40	30,7	cyclictest	0	-21	swapper/1	07:15:16	1
1774766	99	40	28,9	cyclictest	0	-21	swapper/1	07:20:35	1
1774766	99	39	30,6	cyclictest	0	-21	swapper/1	08:25:22	1
1774766	99	35	27,6	cyclictest	1787988	-21	aten_r7power_po	08:00:16	1
1774766	99	29	20,7	cyclictest	0	-21	swapper/1	07:10:01	1
1774766	99	29	20,7	cyclictest	0	-21	swapper/1	07:10:01	1
1774765	99	27	12,6	cyclictest	17	1	rcu_preempt	07:10:03	0
1774765	99	27	12,6	cyclictest	17	1	rcu_preempt	07:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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