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 100 highest latencies:

System rack7slot2.osadl.org (updated Fri Jun 12, 2026 00:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1823490	99	121	112,7	cyclictest	1997271	-21	kworker/u4:5+events_unbound	00:18:01	0
1823490	99	121	112,7	cyclictest	1997271	-21	kworker/u4:5+events_unbound	00:18:00	0
1823491	99	111	95,6	cyclictest	2031939	-21	kworker/u4:0+events_unbound	00:33:00	1
1823491	99	111	104,5	cyclictest	2036305	-21	kworker/u4:3+events_unbound	00:38:01	1
1823491	99	107	100,5	cyclictest	1957780	-21	kworker/u4:0+events_unbound	23:47:54	1
1823490	99	105	97,6	cyclictest	1848071	-21	kworker/u4:1+events_unbound	21:07:21	0
1823491	99	103	96,5	cyclictest	1827286	-21	kworker/u4:9+events_unbound	20:37:15	1
1823491	99	103	95,6	cyclictest	1962215	-21	kworker/u4:7+events_unbound	23:17:50	1
1823490	99	100	92,6	cyclictest	1822219	-21	kworker/u4:0+events_unbound	20:52:16	0
1823491	99	99	92,5	cyclictest	1883561	-21	kworker/u4:1+events_unbound	22:12:33	1
1823490	99	96	88,6	cyclictest	1850615	-21	kworker/u4:15+events_unbound	21:02:19	0
1823490	99	94	86,6	cyclictest	1850616	-21	kworker/u4:17+events_unbound	20:57:18	0
1823490	99	93	85,6	cyclictest	1931729	-21	kworker/u4:7+events_unbound	22:57:45	0
1823491	99	92	85,5	cyclictest	1832486	-21	kworker/u4:1+events_unbound	20:22:12	1
1823491	99	92	85,5	cyclictest	1832486	-21	kworker/u4:1+events_unbound	20:22:12	1
1823490	99	89	82,5	cyclictest	1824718	-21	kworker/u4:3+events_unbound	19:17:04	0
1823491	99	88	80,6	cyclictest	1826000	-21	kworker/u4:8+events_unbound	20:32:14	1
1823490	99	87	80,5	cyclictest	1826000	-21	kworker/u4:8+events_unbound	20:02:09	0
1823490	99	86	79,5	cyclictest	1824718	-21	kworker/u4:3+events_unbound	19:42:06	0
1823491	99	85	77,6	cyclictest	1827286	-21	kworker/u4:9+events_unbound	20:27:12	1
1823490	99	82	75,5	cyclictest	1828566	-21	kworker/u4:13+events_unbound	19:30:01	0
1823491	99	77	69,5	cyclictest	1979997	-21	kworker/u4:13+events_unbound	23:42:53	1
1823491	99	74	66,6	cyclictest	1828566	-21	kworker/u4:13+events_unbound	19:47:07	1
1823491	99	73	65,6	cyclictest	1936205	-21	kworker/u4:1+events_unbound	23:07:48	1
1823490	99	72	64,6	cyclictest	1922877	-21	kworker/u4:0+events_unbound	22:30:03	0
1823491	99	71	64,5	cyclictest	1832487	-21	kworker/u4:4+events_unbound	20:42:14	1
1823490	99	71	61,7	cyclictest	2006168	-21	kworker/u4:3+events_unbound	00:02:59	0
1823490	99	71	61,6	cyclictest	1814808	-21	kworker/u4:11+events_unbound	20:30:00	0
1823491	99	70	62,6	cyclictest	2006168	-21	kworker/u4:3+events_unbound	00:25:01	1
1823491	99	67	60,5	cyclictest	1822220	-21	kworker/u4:1+events_unbound	19:27:05	1
1823491	99	66	59,5	cyclictest	1840219	-21	kworker/u4:16+events_unbound	20:17:02	1
1823491	99	63	56,5	cyclictest	1825999	-21	kworker/u4:6+events_unbound	19:32:06	1
1823491	99	63	45,7	cyclictest	1883562	-21	kworker/u4:6+events_unbound	21:45:02	1
1823490	99	63	54,6	cyclictest	1997271	-21	kworker/u4:5+events_unbound	00:12:59	0
1823491	99	61	54,5	cyclictest	1832487	-21	kworker/u4:4+events_unbound	20:55:02	1
1823491	99	60	33,6	cyclictest	1901378	-21	kworker/u4:14+events_unbound	22:05:39	1
1823491	99	59	49,4	cyclictest	1832488	-21	kworker/u4:10+events_unbound	21:25:02	1
1823490	99	59	50,7	cyclictest	1922877	-21	kworker/u4:0+events_unbound	22:42:42	0
1823490	99	59	48,8	cyclictest	1969443	-21	/usr/sbin/munin	23:20:24	0
1823491	99	58	44,11	cyclictest	0	-21	swapper/1	22:20:12	1
1823490	99	58	51,5	cyclictest	2027557	-21	kworker/u4:14+events_unbound	00:30:02	0
1823490	99	58	50,6	cyclictest	1825978	-21	kworker/u4:5+events_unbound	19:20:02	0
1823491	99	57	50,5	cyclictest	1832488	-21	kworker/u4:10+events_unbound	20:15:01	1
1823490	99	57	50,5	cyclictest	1940675	-21	kworker/u4:3+events_unbound	22:50:47	0
1823490	99	57	49,6	cyclictest	1953352	-21	kworker/u4:13+events_unbound	23:08:00	0
1823490	99	57	43,5	cyclictest	1857242	-21	kworker/u4:6+events_unbound	21:16:01	0
1823491	99	56	39,7	cyclictest	1827286	-21	kworker/u4:9+events_unbound	19:43:46	1
1823490	99	56	48,6	cyclictest	1888018	-21	kworker/u4:4+events_unbound	21:58:59	0
1823490	99	56	48,6	cyclictest	1841497	-21	kworker/u4:17+events_unbound	20:20:04	0
1823490	99	56	48,6	cyclictest	1841497	-21	kworker/u4:17+events_unbound	20:20:04	0
1823490	99	56	35,19	cyclictest	1987295	-21	proc_pri	23:40:38	0
1823491	99	55	47,6	cyclictest	1824719	-21	kworker/u4:4+events_unbound	19:15:02	1
1823491	99	55	45,7	cyclictest	0	-21	swapper/1	00:10:28	1
1823491	99	55	42,11	cyclictest	1934983	-21	timerandwakeup	22:40:41	1
1823491	99	55	41,5	cyclictest	1922879	-21	kworker/u4:3+events_unbound	22:29:46	1
1823490	99	55	47,6	cyclictest	1940675	-21	kworker/u4:3+events_unbound	23:49:45	0
1823490	99	55	47,6	cyclictest	1825999	-21	kworker/u4:6+events_unbound	20:45:03	0
1823490	99	55	46,7	cyclictest	1892467	-21	kworker/u4:5+events_unbound	21:52:29	0
1823490	99	55	46,6	cyclictest	1836297	-21	kworker/u4:15+events_unbound	20:00:00	0
1823490	99	55	46,6	cyclictest	1836297	-21	kworker/u4:15+events_unbound	20:00:00	0
1823491	99	54	47,5	cyclictest	1948254	-21	unixbench_singl	22:55:41	1
1823491	99	54	43,8	cyclictest	2008304	-21	ssh	00:05:12	1
1823491	99	54	43,8	cyclictest	2008304	-21	ssh	00:05:11	1
1823490	99	54	47,5	cyclictest	1888018	-21	kworker/u4:4+events_unbound	22:14:59	0
1823490	99	54	47,5	cyclictest	1883562	-21	kworker/u4:6+events_unbound	21:47:00	0
1823490	99	54	42,8	cyclictest	37	-21	kcompactd0	22:28:57	0
1823491	99	53	46,5	cyclictest	1940675	-21	kworker/u4:3+events_unbound	23:25:02	1
1823491	99	53	45,5	cyclictest	1999989	-21	gltestperf	23:55:22	1
1823490	99	53	42,8	cyclictest	53	-21	kswapd0	00:05:13	0
1823490	99	53	42,8	cyclictest	53	-21	kswapd0	00:05:13	0
1823490	99	53	34,17	cyclictest	1876747	-21	munin-run	21:35:00	0
1823490	99	53	27,15	cyclictest	1997271	-21	kworker/u4:5+events_unbound	00:29:23	0
1823491	99	52	45,5	cyclictest	1931728	-21	kworker/u4:6+events_unbound	22:39:59	1
1823491	99	52	44,6	cyclictest	1975532	-21	kworker/u4:10+events_unbound	00:00:01	1
1823491	99	52	41,5	cyclictest	1857241	-21	kworker/u4:4+events_unbound	21:25:01	1
1823491	99	52	31,6	cyclictest	1975532	-21	kworker/u4:10+events_unbound	00:19:42	1
1823491	99	52	31,6	cyclictest	1975532	-21	kworker/u4:10+events_unbound	00:19:41	1
1823490	99	52	45,5	cyclictest	0	-21	swapper/0	21:20:15	0
1823490	99	52	43,7	cyclictest	1877047	-21	ssh	21:35:12	0
1823491	99	51	3,36	cyclictest	2026222	-21	ntpq	00:25:22	1
1823490	99	51	43,6	cyclictest	1825978	-21	kworker/u4:5+events_unbound	20:35:04	0
1823491	99	50	41,6	cyclictest	1939099	-21	ssh	22:45:35	1
1823491	99	50	41,6	cyclictest	1939099	-21	ssh	22:45:35	1
1823491	99	50	41,6	cyclictest	1839025	-21	apt-key	20:10:02	1
1823491	99	50	32,7	cyclictest	1809610	-21	kworker/u4:7+events_unbound	19:13:59	1
1823490	99	50	42,6	cyclictest	1824718	-21	kworker/u4:3+events_unbound	19:35:05	0
1823490	99	50	31,17	cyclictest	0	-21	swapper/0	23:10:31	0
1823491	99	49	41,6	cyclictest	1836297	-21	kworker/u4:15+events_unbound	20:05:01	1
1823491	99	49	40,7	cyclictest	1855825	-21	mailstats	21:10:41	1
1823491	99	49	40,7	cyclictest	1855825	-21	mailstats	21:10:41	1
1823491	99	49	32,6	cyclictest	0	-21	swapper/1	23:50:30	1
1823491	99	49	32,14	cyclictest	0	-21	swapper/1	23:00:11	1
1823490	99	49	41,6	cyclictest	2021624	-21	fschecks_count	00:20:19	0
1823490	99	49	39,7	cyclictest	1888021	-21	kworker/u4:10+events_unbound	22:22:34	0
1823490	99	49	35,12	cyclictest	1930233	-21	ssh	22:35:31	0
1823490	99	49	29,17	cyclictest	0	-21	swapper/0	23:25:46	0
1823490	99	49	28,19	cyclictest	0	-21	swapper/0	23:35:16	0
1823491	99	48	41,5	cyclictest	1896931	-21	kworker/u4:12+events_unbound	22:17:34	1
1823491	99	48	40,6	cyclictest	1969515	-21	diskmemload	23:20:28	1
1823491	99	48	38,8	cyclictest	1854365	-21	unixbench_multi	21:05:35	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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