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 Sat Nov 08, 2025 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1793057	99	126	116,7	cyclictest	1923049	-21	kworker/u4:0+events_unbound	11:31:08	0
1793057	99	123	115,6	cyclictest	1869657	-21	kworker/u4:7+events_unbound	10:31:01	0
1793059	99	115	106,6	cyclictest	1798166	-21	kworker/u4:1+events_unbound	08:35:44	1
1793057	99	107	99,5	cyclictest	1886511	-21	kworker/u4:14+events_unbound	10:55:56	0
1793057	99	105	87,15	cyclictest	53	-21	kswapd0	10:20:08	0
1793059	99	103	95,6	cyclictest	1826292	-21	kworker/u4:20+events_unbound	09:15:51	1
1793059	99	102	95,5	cyclictest	1575091	-21	kworker/u4:12+events_unbound	07:20:05	1
1793057	99	100	86,12	cyclictest	1955827	-21	kworker/u4:15+events_unbound	12:31:21	0
1793059	99	98	90,6	cyclictest	1844248	-21	kworker/u4:4+events_unbound	09:45:42	1
1793057	99	96	77,17	cyclictest	1799536	-21	kworker/u4:17+events_unbound	07:34:59	0
1793059	99	95	84,8	cyclictest	1923049	-21	kworker/u4:0+events_unbound	11:46:11	1
1793057	99	95	86,6	cyclictest	1811201	-21	kworker/u4:9+events_unbound	09:25:52	0
1793057	99	95	85,7	cyclictest	1844250	-21	kworker/u4:6+events_unbound	09:40:56	0
1793057	99	94	79,13	cyclictest	1911743	-21	kworker/u4:7+events_unbound	11:36:13	0
1793057	99	94	77,6	cyclictest	1836732	-21	kworker/u4:1+events_unbound	09:30:37	0
1793057	99	91	85,4	cyclictest	1869654	-21	kworker/u4:3+events_unbound	10:36:01	0
1793057	99	91	82,6	cyclictest	1541539	-21	kworker/u4:9+events_unbound	07:14:47	0
1793057	99	90	83,5	cyclictest	1923049	-21	kworker/u4:0+events_unbound	11:51:13	0
1793057	99	90	82,6	cyclictest	1802209	-21	kworker/u4:2+events_unbound	07:45:10	0
1793057	99	90	81,7	cyclictest	1952069	-21	kworker/u4:9+events_unbound	12:11:16	0
1793057	99	90	69,7	cyclictest	1955827	-21	kworker/u4:15+events_unbound	12:26:20	0
1793059	99	88	80,6	cyclictest	1817759	-21	kworker/u4:6+events_unbound	08:50:30	1
1793059	99	88	78,8	cyclictest	1817760	-21	kworker/u4:7+events_unbound	09:10:51	1
1793059	99	87	80,5	cyclictest	1844248	-21	kworker/u4:4+events_unbound	09:40:41	1
1793059	99	87	77,7	cyclictest	1795579	-21	kworker/u4:13+events_unbound	09:00:49	1
1793057	99	87	79,6	cyclictest	1575091	-21	kworker/u4:12+events_unbound	08:05:39	0
1793059	99	85	77,6	cyclictest	1811201	-21	kworker/u4:9+events_unbound	08:25:43	1
1793057	99	85	79,4	cyclictest	1876281	-21	kworker/u4:10+events_unbound	10:25:51	0
1793057	99	84	77,5	cyclictest	1923049	-21	kworker/u4:0+events_unbound	11:41:14	0
1793057	99	84	77,5	cyclictest	1866141	-21	kworker/u4:0+events_unbound	10:10:47	0
1793057	99	84	42,22	cyclictest	1916595	-21	apt-get	11:20:10	0
1793059	99	80	69,8	cyclictest	1806053	-21	kworker/u4:6+events_unbound	08:00:32	1
1793059	99	78	70,6	cyclictest	1876280	-21	kworker/u4:1+events_unbound	10:45:55	1
1793059	99	76	64,9	cyclictest	1799535	-21	kworker/u4:14+events_unbound	07:55:17	1
1793057	99	75	67,6	cyclictest	1893968	-21	kworker/u4:13+events_unbound	11:01:06	0
1793057	99	74	64,7	cyclictest	1811201	-21	kworker/u4:9+events_unbound	09:15:00	0
1793057	99	72	65,5	cyclictest	1817759	-21	kworker/u4:6+events_unbound	09:00:33	0
1793057	99	72	62,6	cyclictest	1429202	-21	kworker/u4:15+events_unbound	08:30:01	0
1793059	99	71	63,6	cyclictest	1799536	-21	kworker/u4:17+events_unbound	07:35:01	1
1793059	99	71	61,7	cyclictest	1802209	-21	kworker/u4:2+events_unbound	07:45:21	1
1793057	99	71	62,5	cyclictest	1939481	-21	kworker/u4:8+events_unbound	11:50:01	0
1793057	99	69	62,5	cyclictest	1847893	-21	kworker/u4:3+events_unbound	09:55:44	0
1793057	99	69	61,6	cyclictest	1790527	-21	kworker/u4:8+events_unbound	07:40:07	0
1793057	99	69	61,6	cyclictest	1790527	-21	kworker/u4:8+events_unbound	07:40:06	0
1793057	99	69	59,7	cyclictest	1844248	-21	kworker/u4:4+events_unbound	09:45:56	0
1793059	99	67	59,6	cyclictest	1777679	-21	kworker/u4:5+events_unbound	07:17:01	1
1793059	99	67	53,6	cyclictest	1809929	-21	kworker/u4:8+events_unbound	08:15:02	1
1793057	99	66	50,12	cyclictest	53	-21	kswapd0	12:00:16	0
1793059	99	65	57,6	cyclictest	1886511	-21	kworker/u4:14+events_unbound	10:56:05	1
1793057	99	64	57,5	cyclictest	1952069	-21	kworker/u4:9+events_unbound	12:21:19	0
1793059	99	63	56,5	cyclictest	1798167	-21	kworker/u4:5+events_unbound	07:50:03	1
1793059	99	62	48,6	cyclictest	1911743	-21	kworker/u4:7+events_unbound	11:29:36	1
1793057	99	62	44,6	cyclictest	1798167	-21	kworker/u4:5+events_unbound	08:10:38	0
1793059	99	60	52,6	cyclictest	1815168	-21	kworker/u4:2+events_unbound	08:45:02	1
1793059	99	60	51,6	cyclictest	1789308	-21	kworker/u4:7+events_unbound	08:20:39	1
1793057	99	60	52,6	cyclictest	1981008	-21	ntp_states	12:35:34	0
1793059	99	59	52,5	cyclictest	1820324	-21	kworker/u4:12+events_unbound	09:20:35	1
1793059	99	58	48,7	cyclictest	1908252	-21	kworker/u4:13+events_unbound	11:10:59	1
1793059	99	57	50,5	cyclictest	1913421	-21	aten2__	11:15:17	1
1793059	99	56	48,6	cyclictest	1955827	-21	kworker/u4:15+events_unbound	12:31:19	1
1793059	99	56	45,7	cyclictest	0	-21	swapper/1	07:30:00	1
1793059	99	56	43,10	cyclictest	1799552	-21	cron	07:35:00	1
1793059	99	55	47,5	cyclictest	1869657	-21	kworker/u4:7+events_unbound	10:15:59	1
1793057	99	55	48,5	cyclictest	1817759	-21	kworker/u4:6+events_unbound	08:55:32	0
1793057	99	55	48,5	cyclictest	1798166	-21	kworker/u4:1+events_unbound	08:35:27	0
1793059	99	54	42,5	cyclictest	1795579	-21	kworker/u4:13+events_unbound	08:57:38	1
1793059	99	54	17,26	cyclictest	0	-21	swapper/1	12:15:26	1
1793057	99	54	32,20	cyclictest	1811760	-21	fschecks_time	08:20:21	0
1793059	99	53	47,5	cyclictest	1952069	-21	kworker/u4:9+events_unbound	12:10:08	1
1793059	99	52	44,5	cyclictest	1954443	-21	sed	12:05:17	1
1793059	99	52	39,6	cyclictest	1790527	-21	kworker/u4:8+events_unbound	07:41:38	1
1793059	99	52	39,6	cyclictest	1790527	-21	kworker/u4:8+events_unbound	07:41:37	1
1793057	99	52	32,17	cyclictest	1873018	-21	kworker/u4:11-rpciod	10:20:02	0
1793059	99	51	38,9	cyclictest	1971241	-21	kworker/u4:2	12:25:00	1
1793057	99	51	43,6	cyclictest	1855378	-21	kworker/u4:8+events_unbound	10:05:59	0
1793057	99	51	32,12	cyclictest	1793058	-21	kworker/u4:6	07:10:01	0
1793059	99	50	44,5	cyclictest	1879829	-21	kworker/u4:13+events_unbound	10:27:37	1
1793059	99	50	42,6	cyclictest	1942158	-21	/usr/sbin/munin	11:50:38	1
1793059	99	50	37,5	cyclictest	1826292	-21	kworker/u4:20+events_unbound	09:35:52	1
1793059	99	50	37,5	cyclictest	1429202	-21	kworker/u4:15+events_unbound	08:32:36	1
1793057	99	50	42,6	cyclictest	0	-21	swapper/0	10:03:04	0
1793057	99	50	42,5	cyclictest	1964111	-21	unixbench_multi	12:15:39	0
1793059	99	49	43,4	cyclictest	0	-21	swapper/1	08:05:37	1
1793059	99	49	35,6	cyclictest	1893474	-21	kworker/u4:9+events_unbound	10:50:47	1
1793059	99	49	15,20	cyclictest	0	-21	swapper/1	11:00:28	1
1793057	99	49	42,5	cyclictest	1854269	-21	unixbench_multi	09:50:41	0
1793057	99	49	42,5	cyclictest	1854269	-21	unixbench_multi	09:50:40	0
1793057	99	49	41,6	cyclictest	1801009	-21	latency_hist	07:40:01	0
1793059	99	48	41,5	cyclictest	1816447	-21	kworker/u4:3+events_unbound	09:09:37	1
1793059	99	48	40,6	cyclictest	1923049	-21	kworker/u4:0+events_unbound	11:56:03	1
1793057	99	48	30,4	cyclictest	0	-21	swapper/0	10:40:23	0
1793059	99	47	40,5	cyclictest	1885862	-21	sed	10:35:45	1
1793059	99	47	39,6	cyclictest	1835782	-21	mailstats	09:25:39	1
1793059	99	47	38,7	cyclictest	1917232	-21	/usr/sbin/munin	11:20:25	1
1793057	99	47	40,5	cyclictest	1873018	-21	kworker/u4:11+events_unbound	10:51:06	0
1793057	99	47	40,5	cyclictest	1831389	-21	acpi	09:20:12	0
1793057	99	47	40,5	cyclictest	1828328	-21	fschecks_time	09:15:21	0
1793057	99	47	40,5	cyclictest	1811069	-21	unixbench-2d	08:15:39	0
1793057	99	47	39,6	cyclictest	1814323	-21	fschecks_count	08:30:20	0
1793057	99	47	39,6	cyclictest	1798206	-21	munin-plugin-st	07:30:01	0
1793057	99	47	34,5	cyclictest	1915367	-21	kworker/u4:3+events_unbound	11:20:01	0
1793059	99	46	40,4	cyclictest	0	-21	swapper/1	10:20:47	1
1793059	99	46	37,7	cyclictest	1926419	-21	systemd	11:31:08	1
1793059	99	46	36,7	cyclictest	0	-21	swapper/1	11:05:40	1
1793059	99	46	31,7	cyclictest	1927135	-21	kworker/u4:6+events_unbound	11:41:53	1
1793057	99	46	38,6	cyclictest	1796076	-21	fschecks_count	07:20:19	0
1793057	99	46	38,6	cyclictest	0	-21	swapper/0	07:50:27	0
1793057	99	46	38,5	cyclictest	1806310	-21	aten2__	08:00:15	0
1793057	99	46	37,6	cyclictest	1958426	-21	latency_hist	12:10:07	0
1793059	99	45	38,5	cyclictest	1865298	-21	timerandwakeup	10:05:40	1
1793059	99	45	36,7	cyclictest	1972616	-21	switchtime	12:25:43	1
1793059	99	45	34,7	cyclictest	0	-21	swapper/1	12:35:36	1
1793059	99	45	31,6	cyclictest	1541539	-21	kworker/u4:9+events_unbound	07:14:18	1
1793059	99	45	22,19	cyclictest	27	1	ktimers/1	11:38:30	1
1793057	99	45	38,5	cyclictest	1819535	-21	fschecks_time	08:50:21	0
1793057	99	45	37,5	cyclictest	1946103	-21	uname	11:55:23	0
1793057	99	45	36,7	cyclictest	1818221	-21	fschecks_count	08:45:20	0
1793059	99	44	38,4	cyclictest	1839110	-21	/usr/sbin/munin	09:30:26	1
1793059	99	44	37,5	cyclictest	1881754	-21	/usr/sbin/munin	10:30:21	1
1793059	99	44	34,7	cyclictest	0	-21	swapper/1	10:40:26	1
1793059	99	44	30,6	cyclictest	1429202	-21	kworker/u4:15+events_unbound	08:40:40	1
1793059	99	44	24,14	cyclictest	1868452	-21	ntp_kernel_err	10:10:33	1
1793057	99	44	35,7	cyclictest	1909991	-21	aten_r7power_en	11:10:16	0
1793057	99	44	22,18	cyclictest	0	-21	swapper/0	11:25:26	0
1793059	99	43	36,5	cyclictest	1806053	-21	kworker/u4:6-rpciod	08:15:01	1
1793059	99	43	34,6	cyclictest	0	-21	swapper/1	09:50:19	1
1793059	99	43	34,6	cyclictest	0	-21	swapper/1	09:50:18	1
1793059	99	43	33,8	cyclictest	53	-21	kswapd0	10:00:20	1
1793057	99	43	35,5	cyclictest	1791769	-21	kworker/u4:10-rpciod	07:55:14	0
1793057	99	43	34,7	cyclictest	1794763	-21	fschecks_count	07:15:17	0
1793057	99	43	31,6	cyclictest	0	-21	swapper/0	10:45:09	0
1793059	99	42	36,4	cyclictest	1857877	-21	switchtime	09:55:39	1
1793059	99	42	32,7	cyclictest	0	-21	swapper/1	12:00:24	1
1793057	99	42	35,5	cyclictest	1906517	-21	aten2__	11:05:16	0
1793057	99	42	31,7	cyclictest	0	-21	swapper/0	09:35:32	0
1793057	99	41	29,10	cyclictest	1817074	-21	tail	08:40:57	0
1793059	99	40	31,6	cyclictest	0	-21	swapper/1	07:10:01	1
1793057	99	37	32,3	cyclictest	0	-21	swapper/0	09:05:32	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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