OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 Mon Jul 27, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1852634	99	108	90,5	cyclictest	1921880	-21	kworker/u4:4+events_unbound	10:35:41	1
1852634	99	108	100,6	cyclictest	1912238	-21	kworker/u4:9+events_unbound	09:45:34	1
1852634	99	98	89,6	cyclictest	1899418	-21	kworker/u4:5+events_unbound	09:30:32	1
1852634	99	93	85,5	cyclictest	1997563	-21	kworker/u4:17+events_unbound	11:25:51	1
1852634	99	90	81,7	cyclictest	1860325	-21	kworker/u4:5+events_unbound	08:55:28	1
1852632	99	90	79,9	cyclictest	2023935	-21	kworker/u4:4+events_unbound	12:00:58	0
1852632	99	90	3,42	cyclictest	1973610	-21	ssh	10:50:33	0
1852634	99	84	78,4	cyclictest	1842420	-21	kworker/u4:8+events_unbound	08:05:01	1
1852634	99	83	73,8	cyclictest	1878226	-21	kworker/u4:8+events_unbound	09:25:32	1
1852634	99	78	71,5	cyclictest	1921881	-21	kworker/u4:6+events_unbound	10:10:38	1
1852632	99	78	41,6	cyclictest	1951043	-21	gltestperf	10:25:23	0
1852634	99	77	70,5	cyclictest	2010419	-21	kworker/u4:18+events_unbound	11:35:53	1
1852634	99	76	68,6	cyclictest	1912902	-21	kworker/u4:11+events_unbound	10:15:39	1
1852634	99	75	65,7	cyclictest	1892437	-21	apt-get	09:20:12	1
1852632	99	75	38,8	cyclictest	1842420	-21	kworker/u4:8+rpciod	07:40:16	0
1852632	99	75	34,14	cyclictest	1919075	-21	apt-get	09:50:14	0
1852634	99	74	66,6	cyclictest	1866732	-21	kworker/u4:6+events_unbound	08:50:26	1
1852634	99	72	66,4	cyclictest	1943875	-21	kworker/u4:8+events_unbound	10:30:41	1
1852634	99	69	62,5	cyclictest	1979450	-21	kworker/u4:2+events_unbound	11:05:45	1
1852632	99	69	12,16	cyclictest	1946992	-21	ssh	10:20:35	0
1852634	99	67	58,7	cyclictest	1880761	-21	kworker/u4:13+events_unbound	09:00:27	1
1852634	99	67	57,7	cyclictest	2023935	-21	kworker/u4:4+events_unbound	12:00:55	1
1852634	99	67	57,6	cyclictest	0	-21	swapper/1	09:40:17	1
1852634	99	66	56,8	cyclictest	53	-21	kswapd0	11:55:09	1
1852634	99	65	56,6	cyclictest	1921880	-21	kworker/u4:4+events_unbound	09:55:37	1
1852632	99	65	55,7	cyclictest	1948438	-21	kworker/u4:3+events_unbound	10:45:41	0
1852634	99	64	56,6	cyclictest	1917382	-21	kworker/u4:1+events_unbound	09:50:35	1
1852634	99	64	54,8	cyclictest	1860325	-21	kworker/u4:5+events_unbound	08:30:13	1
1852634	99	64	54,8	cyclictest	1860325	-21	kworker/u4:5+events_unbound	08:30:12	1
1852632	99	64	55,7	cyclictest	1843778	-21	kworker/u4:13+events_unbound	07:54:54	0
1852632	99	64	54,7	cyclictest	1883327	-21	kworker/u4:16+events_unbound	09:10:28	0
1852634	99	62	51,7	cyclictest	0	-21	swapper/1	09:15:11	1
1852634	99	61	51,8	cyclictest	1842420	-21	kworker/u4:8+events_unbound	08:40:20	1
1852632	99	61	53,4	cyclictest	0	-21	swapper/0	11:35:13	0
1852632	99	60	1,22	cyclictest	2030566	-21	ssh	11:55:06	0
1852634	99	58	45,8	cyclictest	1979450	-21	kworker/u4:2-rpciod	11:15:22	1
1852632	99	58	49,7	cyclictest	1979452	-21	kworker/u4:5+events_unbound	11:00:44	0
1852634	99	57	40,11	cyclictest	0	-21	swapper/1	10:45:27	1
1852632	99	57	37,17	cyclictest	0	-21	swapper/0	10:10:38	0
1852632	99	56	47,6	cyclictest	1959315	-21	latency_hist	10:35:01	0
1852632	99	55	48,5	cyclictest	1941709	-21	/usr/sbin/munin	10:15:15	0
1852632	99	55	47,6	cyclictest	2028461	-21	kworker/u4:7+events_unbound	12:05:59	0
1852634	99	54	47,5	cyclictest	2032991	-21	kworker/u4:16+events_unbound	12:19:45	1
1852634	99	54	42,9	cyclictest	0	-21	swapper/1	10:25:42	1
1852632	99	54	47,5	cyclictest	1933030	-21	sort	10:05:20	0
1852632	99	54	45,7	cyclictest	1874597	-21	systemd	08:35:16	0
1852632	99	54	36,16	cyclictest	1889253	-21	mailstats	09:15:40	0
1852632	99	54	33,19	cyclictest	2017364	-21	aten_r7power_en	11:40:16	0
1852632	99	53	48,3	cyclictest	1848745	-21	kworker/u4:2+events_unbound	07:19:46	0
1852632	99	53	46,5	cyclictest	1842420	-21	kworker/u4:8+events_unbound	08:10:01	0
1852632	99	53	43,6	cyclictest	1924456	-21	sed	09:55:28	0
1852634	99	52	45,5	cyclictest	2040603	-21	timerandwakeup	12:05:39	1
1852634	99	52	45,5	cyclictest	1912902	-21	kworker/u4:11+events_unbound	10:40:43	1
1852634	99	52	41,8	cyclictest	1856143	-21	ps	07:20:39	1
1852632	99	52	2,13	cyclictest	1855176	-21	apt-get	07:20:08	0
1852634	99	51	43,6	cyclictest	2009147	-21	/usr/sbin/munin	11:30:31	1
1852634	99	51	43,6	cyclictest	1925709	-21	kworker/u4:9+events_unbound	10:00:36	1
1852634	99	51	39,8	cyclictest	0	-21	swapper/1	12:30:11	1
1852632	99	51	43,5	cyclictest	1981411	-21	ssh	11:00:00	0
1852634	99	50	42,5	cyclictest	2023935	-21	kworker/u4:4+events_unbound	11:47:45	1
1852634	99	50	41,7	cyclictest	1977829	-21	/usr/sbin/munin	10:55:23	1
1852634	99	50	40,7	cyclictest	0	-21	swapper/1	08:45:14	1
1852634	99	50	39,7	cyclictest	0	-21	swapper/1	10:05:40	1
1852634	99	50	35,10	cyclictest	0	-21	swapper/1	10:20:24	1
1852634	99	50	31,11	cyclictest	0	-21	swapper/1	07:15:01	1
1852632	99	50	42,5	cyclictest	1897762	-21	/usr/sbin/munin	09:25:22	0
1852632	99	50	41,6	cyclictest	1893993	-21	/usr/sbin/munin	09:20:46	0
1852632	99	50	38,10	cyclictest	2061374	-21	cron	12:29:59	0
1852632	99	50	32,7	cyclictest	1928480	-21	df_abs	10:00:17	0
1852634	99	49	42,4	cyclictest	1860325	-21	kworker/u4:5+events_unbound	08:30:01	1
1852634	99	49	37,9	cyclictest	2067673	-21	sh	12:36:08	1
1852634	99	49	36,10	cyclictest	0	-21	swapper/1	12:25:29	1
1852632	99	49	7,38	cyclictest	1073	-21	snmpd	07:30:30	0
1852632	99	49	42,5	cyclictest	2004576	-21	/usr/sbin/munin	11:25:26	0
1852632	99	49	32,14	cyclictest	2062022	-21	fschecks_count	12:30:19	0
1852634	99	48	41,5	cyclictest	2057018	-21	gpgv	12:25:01	1
1852634	99	48	41,5	cyclictest	1884408	-21	ssh	09:10:28	1
1852634	99	48	40,6	cyclictest	1867124	-21	sed	08:05:17	1
1852634	99	48	40,5	cyclictest	0	-21	swapper/1	12:10:27	1
1852634	99	48	39,6	cyclictest	2030365	-21	apt-config	11:55:02	1
1852634	99	48	37,8	cyclictest	1982198	-21	gltestperf	11:00:19	1
1852634	99	48	37,8	cyclictest	1856849	-21	aten_r7power_vo	07:25:15	1
1852632	99	48	4,33	cyclictest	2008384	-21	ssh	11:30:16	0
1852632	99	48	42,4	cyclictest	2066176	-21	aten_r7power_po	12:35:17	0
1852632	99	48	40,5	cyclictest	1906261	-21	df_abs	09:35:17	0
1852632	99	48	38,8	cyclictest	1881354	-21	gltestperf	09:00:23	0
1852632	99	48	37,9	cyclictest	2026669	-21	if_eth0	11:50:23	0
1852634	99	47	38,6	cyclictest	0	-21	swapper/1	10:50:42	1
1852634	99	47	37,7	cyclictest	27	1	ktimers/1	09:05:26	1
1852634	99	47	37,6	cyclictest	1906965	-21	awk	09:35:35	1
1852634	99	47	37,6	cyclictest	0	-21	swapper/1	08:40:01	1
1852634	99	47	36,7	cyclictest	0	-21	swapper/1	11:20:26	1
1852634	99	47	36,7	cyclictest	0	-21	swapper/1	11:20:25	1
1852632	99	47	39,6	cyclictest	1986906	-21	/usr/sbin/munin	11:05:29	0
1852632	99	47	38,7	cyclictest	2041391	-21	kworker/u4:6+events_unbound	12:10:57	0
1852634	99	46	39,5	cyclictest	1870586	-21	apt	08:20:00	1
1852634	99	46	36,7	cyclictest	1862065	-21	fschecks_count	07:45:21	1
1852634	99	46	26,14	cyclictest	1859078	-21	modprobe	07:35:01	1
1852632	99	46	40,4	cyclictest	1911364	-21	ntp_offset	09:40:35	0
1852632	99	46	40,4	cyclictest	0	-21	swapper/0	10:40:41	0
1852632	99	46	39,5	cyclictest	1902116	-21	expr	09:30:22	0
1852632	99	46	38,6	cyclictest	1999872	-21	ssh	11:20:22	0
1852632	99	46	38,6	cyclictest	1999872	-21	ssh	11:20:22	0
1852632	99	46	36,7	cyclictest	0	-21	swapper/0	08:45:23	0
1852632	99	46	23,17	cyclictest	0	-21	swapper/0	12:15:33	0
1852634	99	45	38,5	cyclictest	1859646	-21	gltestperf	07:35:21	1
1852634	99	45	32,8	cyclictest	0	-21	swapper/1	11:10:13	1
1852632	99	45	38,5	cyclictest	1991599	-21	uname	11:10:38	0
1852632	99	45	38,5	cyclictest	1878711	-21	fschecks_time	08:50:19	0
1852632	99	45	37,6	cyclictest	1869871	-21	gltestperf	08:15:18	0
1852632	99	45	37,6	cyclictest	1866747	-21	sshd	08:05:00	0
1852632	99	45	37,6	cyclictest	1861963	-21	aten_r7power_vo	07:45:18	0
1852632	99	45	36,6	cyclictest	1996052	-21	sh	11:15:40	0
1852632	99	45	35,8	cyclictest	1876988	-21	cut	08:45:00	0
1852632	99	45	23,20	cyclictest	2022796	-21	timerandwakeup	11:45:39	0
1852634	99	44	29,12	cyclictest	0	-21	swapper/1	11:40:17	1
1852634	99	44	28,12	cyclictest	0	-21	swapper/1	07:40:35	1
1852632	99	44	37,5	cyclictest	2057127	-21	apt-key	12:25:02	0
1852632	99	44	36,6	cyclictest	53	-21	kswapd0	10:35:21	0
1852634	99	43	34,7	cyclictest	1872001	-21	latency_hist	08:25:00	1
1852634	99	43	31,8	cyclictest	0	-21	swapper/1	07:15:34	1
1852632	99	43	36,5	cyclictest	1883381	-21	sh	09:10:00	0
1852632	99	43	35,6	cyclictest	1859575	-21	fschecks_time	07:35:20	0
1852634	99	42	33,6	cyclictest	0	-21	swapper/1	08:10:33	1
1852634	99	42	33,6	cyclictest	0	-21	swapper/1	08:10:32	1
1852634	99	42	29,10	cyclictest	0	-21	swapper/1	07:50:38	1
1852632	99	42	35,5	cyclictest	1856726	-21	aten2__	07:25:15	0
1852632	99	42	34,5	cyclictest	1871091	-21	fschecks_time	08:20:21	0
1852632	99	42	33,7	cyclictest	1864659	-21	fschecks_time	07:55:19	0
1852632	99	42	32,8	cyclictest	1872391	-21	fschecks_time	08:25:21	0
1852632	99	42	20,20	cyclictest	1852871	-21	aten_r7power_po	07:10:18	0
1852632	99	42	10,20	cyclictest	1852607	-21	munin-run	07:10:01	0
1852632	99	41	34,5	cyclictest	1899422	-21	kworker/u4:7-rpciod	09:45:41	0
1852632	99	41	32,6	cyclictest	0	-21	swapper/0	08:10:21	0
1852632	99	41	32,6	cyclictest	0	-21	swapper/0	08:10:21	0
1852632	99	40	31,7	cyclictest	1880738	-21	unixbench_singl	08:55:39	0
1852634	99	39	28,6	cyclictest	1842420	-21	kworker/u4:8-rpciod	07:55:35	1
1852632	99	38	30,6	cyclictest	1874231	-21	timerwakeupswit	08:30:37	0
1852632	99	38	30,6	cyclictest	1874231	-21	timerwakeupswit	08:30:36	0
1852634	99	33	23,7	cyclictest	1852741	-21	latency_hist	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17