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 Mon Aug 03, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2018965	99	107	100,5	cyclictest	2106800	-21	kworker/u4:12+events_unbound	22:16:17	1
2018965	99	104	97,5	cyclictest	2102266	-21	kworker/u4:5+events_unbound	22:26:17	1
2018965	99	102	94,6	cyclictest	2005209	-21	kworker/u4:4+events_unbound	19:50:49	1
2018964	99	88	72,13	cyclictest	53	-21	kswapd0	00:30:10	0
2018965	99	87	79,6	cyclictest	2061542	-21	kworker/u4:1+events_unbound	21:46:10	1
2018964	99	86	78,6	cyclictest	2106800	-21	kworker/u4:12+events_unbound	22:31:19	0
2018964	99	85	78,5	cyclictest	2177501	-21	kworker/u4:4+events_unbound	23:46:54	0
2018965	99	84	76,6	cyclictest	2021468	-21	kworker/u4:9+events_unbound	19:30:41	1
2018965	99	84	75,6	cyclictest	2031776	-21	kworker/u4:15+events_unbound	20:15:53	1
2018964	99	82	64,7	cyclictest	2061542	-21	kworker/u4:1+events_unbound	21:31:07	0
2018965	99	79	72,5	cyclictest	2025318	-21	kworker/u4:13+events_unbound	20:10:51	1
2018965	99	79	72,5	cyclictest	2021464	-21	kworker/u4:3+events_unbound	20:35:56	1
2018964	99	79	72,5	cyclictest	2049749	-21	kworker/u4:13+events_unbound	21:26:08	0
2018965	99	76	68,6	cyclictest	2022775	-21	kworker/u4:0+events_unbound	20:45:58	1
2018965	99	73	65,6	cyclictest	2021466	-21	kworker/u4:6+events_unbound	20:55:59	1
2018964	99	72	65,5	cyclictest	2159488	-21	kworker/u4:14+events_unbound	23:21:35	0
2018964	99	72	52,6	cyclictest	2061542	-21	kworker/u4:1+events_unbound	22:36:19	0
2018965	99	68	60,6	cyclictest	2173016	-21	kworker/u4:5+events_unbound	23:31:38	1
2018965	99	67	59,6	cyclictest	2025318	-21	kworker/u4:13+events_unbound	19:55:49	1
2018965	99	67	55,9	cyclictest	53	-21	kswapd0	00:30:01	1
2018964	99	66	42,8	cyclictest	2181950	-21	kworker/u4:9+events_unbound	23:40:03	0
2018964	99	66	42,8	cyclictest	2181950	-21	kworker/u4:9+events_unbound	23:40:02	0
2018965	99	64	52,9	cyclictest	0	-21	swapper/1	23:55:28	1
2018965	99	64	44,14	cyclictest	2072464	-21	modprobe	21:35:00	1
2018965	99	63	55,5	cyclictest	2137693	-21	kworker/u4:11-rpciod	23:15:16	1
2018965	99	63	55,5	cyclictest	0	-21	swapper/1	00:05:40	1
2018964	99	63	55,6	cyclictest	2102265	-21	kworker/u4:4+events_unbound	22:11:16	0
2018964	99	63	48,5	cyclictest	2128652	-21	kworker/u4:2+events_unbound	22:41:26	0
2018964	99	62	54,6	cyclictest	2133204	-21	kworker/u4:6+events_unbound	23:11:31	0
2018965	99	61	48,9	cyclictest	0	-21	swapper/1	23:25:27	1
2018965	99	61	45,13	cyclictest	0	-21	swapper/1	00:30:45	1
2018965	99	60	40,15	cyclictest	2105580	-21	ssh	22:10:47	1
2018964	99	60	53,5	cyclictest	2022775	-21	kworker/u4:0+events_unbound	21:20:02	0
2018964	99	60	51,6	cyclictest	2061542	-21	kworker/u4:1+events_unbound	22:05:02	0
2018964	99	57	33,21	cyclictest	2135794	-21	fschecks_count	22:45:25	0
2018965	99	56	49,5	cyclictest	2181949	-21	kworker/u4:8+events_unbound	23:45:01	1
2018965	99	56	46,6	cyclictest	0	-21	swapper/1	21:23:29	1
2018965	99	55	46,6	cyclictest	2220453	-21	/usr/sbin/munin	00:20:36	1
2018965	99	55	46,6	cyclictest	2064230	-21	gltestperf	21:25:24	1
2018964	99	54	47,5	cyclictest	2199966	-21	kworker/u4:8+events_unbound	00:00:14	0
2018964	99	54	47,5	cyclictest	2093099	-21	kworker/u4:10+events_unbound	22:01:14	0
2018964	99	54	46,6	cyclictest	2121375	-21	ssh	22:29:22	0
2018964	99	54	43,8	cyclictest	2139987	-21	aten_r7power_po	22:50:15	0
2018965	99	53	47,4	cyclictest	2102268	-21	kworker/u4:7+events_unbound	22:25:01	1
2018965	99	53	44,6	cyclictest	2157254	-21	munin-plugin-st	23:10:00	1
2018965	99	53	43,7	cyclictest	2087284	-21	/usr/sbin/munin	21:50:36	1
2018964	99	53	46,5	cyclictest	2088517	-21	kworker/u4:2+events_unbound	21:56:13	0
2018964	99	53	36,14	cyclictest	53	-21	kswapd0	23:55:32	0
2018964	99	52	42,6	cyclictest	2153683	-21	if_eth0	23:05:23	0
2018964	99	52	21,16	cyclictest	0	-21	swapper/0	19:10:00	0
2018965	99	51	44,5	cyclictest	2078483	-21	timerwakeupswit	21:40:38	1
2018965	99	51	44,5	cyclictest	2024048	-21	kworker/u4:8+events_unbound	21:17:02	1
2018965	99	51	44,5	cyclictest	2022776	-21	kworker/u4:1+events_unbound	19:35:03	1
2018965	99	51	43,6	cyclictest	2006482	-21	kworker/u4:12+events_unbound	21:05:03	1
2018965	99	51	40,8	cyclictest	2050641	-21	/usr/sbin/munin	21:10:21	1
2018965	99	51	37,11	cyclictest	0	-21	swapper/1	22:50:13	1
2018965	99	51	35,10	cyclictest	0	-21	swapper/1	22:05:45	1
2018964	99	51	44,5	cyclictest	2146644	-21	kworker/u4:1+events_unbound	23:36:39	0
2018964	99	51	44,5	cyclictest	2034426	-21	kworker/u4:16+events_unbound	20:20:52	0
2018965	99	50	43,5	cyclictest	2021466	-21	kworker/u4:6+events_unbound	19:25:39	1
2018965	99	50	42,5	cyclictest	2236951	-21	lockfile-create	00:40:01	1
2018965	99	50	40,7	cyclictest	2091282	-21	fschecks_time	21:55:21	1
2018965	99	50	19,27	cyclictest	0	-21	swapper/1	21:35:15	1
2018964	99	50	31,17	cyclictest	2114537	-21	grep	22:20:41	0
2018964	99	50	30,18	cyclictest	2047670	-21	fschecks_count	21:00:20	0
2018965	99	49	43,5	cyclictest	2061542	-21	kworker/u4:1+events_unbound	22:41:57	1
2018965	99	49	43,4	cyclictest	2155670	-21	kworker/u4:12+events_unbound	23:13:06	1
2018965	99	49	37,9	cyclictest	2037484	-21	fschecks_count	20:20:18	1
2018965	99	49	35,10	cyclictest	0	-21	swapper/1	00:10:34	1
2018965	99	49	3,34	cyclictest	2145089	-21	ssh	22:55:34	1
2018965	99	49	3,34	cyclictest	2145089	-21	ssh	22:55:33	1
2018964	99	49	42,5	cyclictest	2155023	-21	kworker/u4:9+events_unbound	23:25:20	0
2018964	99	49	42,5	cyclictest	2043429	-21	latency_hist	20:45:01	0
2018964	99	49	42,5	cyclictest	2043429	-21	latency_hist	20:45:01	0
2018964	99	49	42,5	cyclictest	0	-21	swapper/0	23:16:31	0
2018964	99	49	39,7	cyclictest	2148946	-21	df_abs	23:00:17	0
2018964	99	49	30,5	cyclictest	0	-21	swapper/0	23:00:01	0
2018964	99	49	30,5	cyclictest	0	-21	swapper/0	23:00:01	0
2018965	99	48	41,5	cyclictest	2149187	-21	head	23:00:21	1
2018965	99	48	41,5	cyclictest	2022778	-21	kworker/u4:7+events_unbound	19:49:46	1
2018965	99	48	40,6	cyclictest	2102265	-21	kworker/u4:4+events_unbound	22:30:02	1
2018965	99	48	40,5	cyclictest	2167442	-21	mailstats	23:20:38	1
2018965	99	48	38,6	cyclictest	2194788	-21	kworker/u4:9-rpciod	00:00:15	1
2018965	99	48	37,7	cyclictest	2040830	-21	modprobe	20:35:00	1
2018964	99	48	41,5	cyclictest	2060495	-21	unixbench_singl	21:20:40	0
2018964	99	48	40,5	cyclictest	2036889	-21	unixbench_multi	20:15:39	0
2018964	99	48	39,6	cyclictest	2087627	-21	unixbench_multi	21:50:39	0
2018964	99	48	37,5	cyclictest	2194788	-21	kworker/u4:9+events_unbound	23:54:16	0
2018964	99	48	25,6	cyclictest	2159487	-21	kworker/u4:13+events_unbound	23:33:24	0
2018965	99	47	39,6	cyclictest	2106800	-21	kworker/u4:12+events_unbound	22:35:06	1
2018965	99	47	38,6	cyclictest	2022680	-21	unixbench_multi	19:20:38	1
2018965	99	47	38,5	cyclictest	0	-21	swapper/1	23:50:20	1
2018965	99	47	36,6	cyclictest	0	-21	swapper/1	23:35:31	1
2018965	99	47	30,10	cyclictest	0	-21	swapper/1	00:15:31	1
2018964	99	47	40,5	cyclictest	2233928	-21	sed	00:35:42	0
2018964	99	47	40,5	cyclictest	2211055	-21	fschecks_time	00:10:18	0
2018964	99	47	40,5	cyclictest	2077784	-21	gltestperf	21:40:20	0
2018964	99	47	40,5	cyclictest	2020189	-21	kworker/u4:2+events_unbound	19:15:38	0
2018964	99	47	30,5	cyclictest	2221771	-21	kworker/u4:4+events_unbound	00:26:45	0
2018964	99	47	30,14	cyclictest	2022776	-21	kworker/u4:1+xprtiod	19:50:11	0
2018964	99	47	28,17	cyclictest	0	-21	swapper/0	21:05:37	0
2018965	99	46	37,6	cyclictest	2042644	-21	fschecks_time	20:40:20	1
2018965	99	46	37,6	cyclictest	2042644	-21	fschecks_time	20:40:19	1
2018965	99	46	35,8	cyclictest	2039439	-21	unixbench_multi	20:25:39	1
2018964	99	46	39,5	cyclictest	2220741	-21	grep	00:20:39	0
2018964	99	46	39,5	cyclictest	2005209	-21	kworker/u4:4+events_unbound	19:59:45	0
2018964	99	46	38,6	cyclictest	2215660	-21	kernelversion	00:15:24	0
2018964	99	46	38,6	cyclictest	2109180	-21	fschecks_count	22:15:22	0
2018965	99	45	39,5	cyclictest	2024048	-21	kworker/u4:8+events_unbound	19:40:01	1
2018965	99	45	38,5	cyclictest	2021464	-21	kworker/u4:3+events_unbound	20:50:03	1
2018965	99	45	36,5	cyclictest	2095553	-21	ssh	22:00:17	1
2018965	99	45	33,7	cyclictest	0	-21	swapper/1	22:45:10	1
2018964	99	45	39,4	cyclictest	2086120	-21	latency_hist	21:50:02	0
2018965	99	44	37,5	cyclictest	2005207	-21	kworker/u4:1+events_unbound	19:11:45	1
2018965	99	44	36,5	cyclictest	2031776	-21	kworker/u4:15+events_unbound	20:00:03	1
2018964	99	44	37,5	cyclictest	2073742	-21	processes	21:35:38	0
2018964	99	44	34,7	cyclictest	2022728	-21	head	19:20:38	0
2018964	99	44	25,6	cyclictest	0	-21	swapper/0	20:51:55	0
2018965	99	43	8,19	cyclictest	2034455	-21	modprobe	20:10:00	1
2018964	99	43	37,4	cyclictest	0	-21	swapper/0	21:10:27	0
2018964	99	43	36,5	cyclictest	2033375	-21	aten2__	20:05:21	0
2018964	99	43	35,6	cyclictest	2005209	-21	kworker/u4:4-rpciod	20:10:20	0
2018964	99	43	34,7	cyclictest	2024653	-21	gltestperf	19:30:20	0
2018965	99	42	33,6	cyclictest	0	-21	swapper/1	23:40:32	1
2018965	99	42	33,6	cyclictest	0	-21	swapper/1	23:40:32	1
2018964	99	42	35,5	cyclictest	2047225	-21	munin-plugin-st	21:00:01	0
2018964	99	42	34,6	cyclictest	2025836	-21	fschecks_time	19:35:17	0
2018965	99	41	32,6	cyclictest	0	-21	swapper/1	19:20:02	1
2018964	99	41	34,5	cyclictest	2190971	-21	kworker/u4:2-rpciod	00:05:21	0
2018964	99	41	34,5	cyclictest	2040434	-21	grep	20:30:37	0
2018964	99	41	33,6	cyclictest	2026906	-21	aten_r7power_po	19:40:14	0
2018964	99	40	33,4	cyclictest	0	-21	swapper/0	19:10:37	0
2018964	99	40	32,6	cyclictest	2039541	-21	kworker/u4:7+rpciod	20:40:01	0
2018965	99	39	30,6	cyclictest	0	-21	swapper/1	21:00:27	1
2018964	99	39	32,5	cyclictest	2029260	-21	latency_hist	19:50:02	0
2018964	99	39	30,6	cyclictest	2038601	-21	aten_r7power_vo	20:25:17	0
2018964	99	39	30,6	cyclictest	0	-21	swapper/0	20:00:17	0
2018964	99	38	32,4	cyclictest	2023748	-21	cat	19:25:37	0
2018964	99	36	27,7	cyclictest	2043590	-21	aten2__	20:45:16	0
2018965	99	30	21,7	cyclictest	0	-21	swapper/1	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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