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 Thu Dec 11, 2025 00:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2001993	99	140	124,7	cyclictest	2003316	-21	kworker/u4:14+events_unbound	19:31:08	1
2001990	99	131	124,5	cyclictest	2031884	-21	kworker/u4:12+events_unbound	21:31:32	0
2001990	99	129	122,5	cyclictest	2013807	-21	kworker/u4:11+events_unbound	21:26:31	0
2001993	99	126	114,5	cyclictest	2003317	-21	kworker/u4:15+events_unbound	20:01:15	1
2001993	99	124	109,7	cyclictest	2168106	-21	kworker/u4:0+events_unbound	00:33:33	1
2001990	99	124	113,5	cyclictest	2028014	-21	kworker/u4:7+events_unbound	21:06:27	0
2001990	99	122	113,7	cyclictest	2035860	-21	kworker/u4:3+events_unbound	21:41:35	0
2001993	99	118	109,7	cyclictest	2015099	-21	kworker/u4:19+events_unbound	20:11:18	1
2001990	99	118	106,5	cyclictest	2063936	-21	kworker/u4:9+events_unbound	22:01:40	0
2001990	99	117	107,8	cyclictest	2072067	-21	kworker/u4:6+events_unbound	22:16:44	0
2001990	99	116	108,6	cyclictest	2176100	-21	kworker/u4:8+events_unbound	00:08:08	0
2001990	99	116	108,6	cyclictest	2176100	-21	kworker/u4:8+events_unbound	00:08:08	0
2001990	99	114	107,5	cyclictest	2076189	-21	kworker/u4:0+events_unbound	22:06:41	0
2001990	99	113	106,5	cyclictest	2031884	-21	kworker/u4:12+events_unbound	21:11:29	0
2001990	99	109	100,7	cyclictest	2172102	-21	kworker/u4:2+events_unbound	00:03:06	0
2001990	99	104	95,6	cyclictest	2028012	-21	kworker/u4:5+events_unbound	20:51:23	0
2001990	99	102	95,5	cyclictest	2003317	-21	kworker/u4:15+events_unbound	20:26:20	0
2001990	99	99	92,5	cyclictest	2127860	-21	kworker/u4:2+events_unbound	23:21:54	0
2001990	99	98	93,3	cyclictest	2000703	-21	kworker/u4:6+events_unbound	19:16:06	0
2001990	99	98	91,5	cyclictest	2013805	-21	kworker/u4:6+events_unbound	20:41:23	0
2001990	99	96	88,6	cyclictest	1989395	-21	kworker/u4:11+events_unbound	19:11:04	0
2001990	99	96	85,8	cyclictest	2035860	-21	kworker/u4:3+events_unbound	21:21:30	0
2001990	99	95	88,5	cyclictest	2176100	-21	kworker/u4:8+events_unbound	00:13:47	0
2001990	99	95	88,5	cyclictest	2013806	-21	kworker/u4:9+events_unbound	19:56:14	0
2001990	99	94	86,6	cyclictest	2003317	-21	kworker/u4:15+events_unbound	20:31:21	0
2001990	99	93	86,5	cyclictest	2159988	-21	kworker/u4:5+events_unbound	23:48:01	0
2001990	99	93	86,5	cyclictest	2112418	-21	kworker/u4:3+events_unbound	23:01:52	0
2001990	99	92	79,6	cyclictest	2029295	-21	kworker/u4:8+events_unbound	21:16:31	0
2001990	99	91	71,7	cyclictest	2009852	-21	kworker/u4:8+events_unbound	19:41:11	0
2001990	99	90	83,5	cyclictest	2127860	-21	kworker/u4:2+events_unbound	23:16:54	0
2001990	99	90	83,5	cyclictest	2003310	-21	kworker/u4:10+events_unbound	19:46:12	0
2001990	99	89	82,5	cyclictest	2031884	-21	kworker/u4:12+events_unbound	21:01:27	0
2001990	99	89	82,5	cyclictest	2031884	-21	kworker/u4:12+events_unbound	21:01:26	0
2001990	99	89	81,6	cyclictest	2135926	-21	kworker/u4:4+events_unbound	23:26:57	0
2001993	99	87	82,3	cyclictest	2135926	-21	kworker/u4:4+events_unbound	23:26:55	1
2001993	99	87	73,6	cyclictest	2183643	-21	kworker/u4:9+events_unbound	00:23:51	1
2001990	99	86	72,7	cyclictest	2091948	-21	kworker/u4:6+events_unbound	22:26:44	0
2001993	99	83	75,5	cyclictest	2029295	-21	kworker/u4:8+events_unbound	21:16:29	1
2001990	99	81	73,6	cyclictest	2013804	-21	kworker/u4:5+events_unbound	20:16:19	0
2001990	99	80	72,6	cyclictest	2003316	-21	kworker/u4:14+events_unbound	19:26:08	0
2001990	99	76	69,5	cyclictest	2080284	-21	kworker/u4:2+events_unbound	22:11:42	0
2001993	99	73	65,6	cyclictest	2100066	-21	kworker/u4:0+events_unbound	22:45:09	1
2001990	99	71	62,7	cyclictest	2123771	-21	kworker/u4:0+events_unbound	23:11:53	0
2001990	99	70	63,5	cyclictest	2028011	-21	kworker/u4:4+events_unbound	20:56:25	0
2001990	99	70	61,7	cyclictest	2168113	-21	kworker/u4:12+events_unbound	23:58:28	0
2001993	99	69	59,7	cyclictest	2100068	-21	kworker/u4:5+events_unbound	22:36:47	1
2001993	99	68	60,6	cyclictest	2003317	-21	kworker/u4:15+events_unbound	19:20:04	1
2001990	99	68	60,6	cyclictest	2091948	-21	kworker/u4:6+events_unbound	22:45:03	0
2001990	99	68	60,6	cyclictest	1993351	-21	kworker/u4:3+events_unbound	19:36:09	0
2001990	99	67	9,50	cyclictest	2001963	-21	apt-get	19:10:01	0
2001993	99	66	56,6	cyclictest	0	-21	swapper/1	21:20:17	1
2001990	99	66	59,5	cyclictest	2013805	-21	kworker/u4:6+events_unbound	20:21:19	0
2001993	99	65	56,7	cyclictest	2001988	-21	cyclictest	21:53:54	1
2001993	99	65	54,8	cyclictest	2172102	-21	kworker/u4:2+events_unbound	00:03:41	1
2001993	99	63	55,5	cyclictest	0	-21	swapper/1	21:40:26	1
2001990	99	63	6,52	cyclictest	2118580	-21	ssh	22:55:28	0
2001990	99	63	41,20	cyclictest	53	-21	kswapd0	23:50:11	0
2001993	99	61	44,14	cyclictest	2168106	-21	kworker/u4:0-rpciod	00:15:01	1
2001993	99	61	35,21	cyclictest	2166788	-21	ntpq	23:55:32	1
2001990	99	61	52,7	cyclictest	379	-21	dbus-daemon	19:31:08	0
2001990	99	61	41,7	cyclictest	2100069	-21	kworker/u4:7+events_unbound	22:35:08	0
2001993	99	60	50,7	cyclictest	2091002	-21	timerwakeupswit	22:20:38	1
2001993	99	60	49,8	cyclictest	2050568	-21	ps	21:30:43	1
2001990	99	60	50,8	cyclictest	2055467	-21	systemd	21:36:32	0
2001993	99	59	52,5	cyclictest	2100068	-21	kworker/u4:5+events_unbound	22:40:03	1
2001993	99	59	47,9	cyclictest	2033285	-21	sh	21:09:59	1
2001993	99	59	47,7	cyclictest	0	-21	swapper/1	00:35:36	1
2001993	99	59	47,7	cyclictest	0	-21	swapper/1	00:35:36	1
2001990	99	59	50,7	cyclictest	2104124	-21	kworker/u4:9+events_unbound	22:46:50	0
2001990	99	59	48,5	cyclictest	2183643	-21	kworker/u4:9+events_unbound	00:17:38	0
2001993	99	58	52,4	cyclictest	2009842	-21	sshd	19:36:09	1
2001990	99	58	51,5	cyclictest	2168106	-21	kworker/u4:0+events_unbound	00:38:56	0
2001990	99	58	51,5	cyclictest	2168106	-21	kworker/u4:0+events_unbound	00:38:55	0
2001993	99	57	34,19	cyclictest	0	-21	swapper/1	22:30:15	1
2001990	99	56	45,8	cyclictest	2143532	-21	kworker/u4:7+events_unbound	23:41:57	0
2001990	99	56	44,9	cyclictest	2126424	-21	load	23:05:23	0
2001993	99	55	49,4	cyclictest	27	1	ktimers/1	23:01:47	1
2001993	99	55	46,6	cyclictest	2063938	-21	kworker/u4:10+events_unbound	21:55:04	1
2001993	99	55	43,5	cyclictest	2034529	-21	ssh	21:10:37	1
2001993	99	55	42,9	cyclictest	2174844	-21	ps	00:05:40	1
2001993	99	55	42,9	cyclictest	2174844	-21	ps	00:05:40	1
2001993	99	55	40,5	cyclictest	2091943	-21	kworker/u4:1+events_unbound	22:26:59	1
2001990	99	55	36,6	cyclictest	2055712	-21	kworker/u4:0+events_unbound	21:51:11	0
2001990	99	54	45,7	cyclictest	379	-21	dbus-daemon	23:36:56	0
2001990	99	54	43,9	cyclictest	2144103	-21	kworker/u4:9+events_unbound	23:30:17	0
2001993	99	53	44,6	cyclictest	2001988	-21	cyclictest	22:15:10	1
2001993	99	53	36,10	cyclictest	0	-21	swapper/1	21:25:34	1
2001993	99	51	42,6	cyclictest	2149639	-21	idleruntime-cro	23:35:01	1
2001990	99	51	45,4	cyclictest	2098214	-21	grep	22:30:19	0
2001990	99	51	4,43	cyclictest	2090628	-21	rm	22:20:29	0
2001990	99	51	41,7	cyclictest	2005828	-21	unixbench_multi	19:20:40	0
2001993	99	50	37,9	cyclictest	0	-21	swapper/1	23:10:34	1
2001990	99	50	44,4	cyclictest	2025404	-21	systemd	20:36:20	0
2001990	99	50	42,5	cyclictest	2189439	-21	sh	00:25:39	0
2001993	99	49	42,5	cyclictest	2028009	-21	kworker/u4:2+events_unbound	21:03:38	1
2001993	99	49	42,5	cyclictest	2028009	-21	kworker/u4:2+events_unbound	21:03:38	1
2001993	99	49	40,5	cyclictest	2138332	-21	/usr/sbin/munin	23:20:22	1
2001993	99	49	39,7	cyclictest	2133899	-21	aten_r7power_po	23:15:17	1
2001993	99	49	37,8	cyclictest	0	-21	swapper/1	23:40:35	1
2001993	99	49	36,9	cyclictest	0	-21	swapper/1	20:55:30	1
2001990	99	49	41,6	cyclictest	2016397	-21	systemd	20:01:15	0
2001993	99	48	40,5	cyclictest	2025412	-21	systemd	20:36:21	1
2001993	99	48	38,7	cyclictest	2011246	-21	apt-key	19:45:01	1
2001993	99	48	37,8	cyclictest	2158226	-21	df_abs	23:45:17	1
2001990	99	48	41,5	cyclictest	2186060	-21	mailstats	00:20:39	0
2001990	99	48	39,6	cyclictest	1998245	-21	kworker/u4:4-rpciod	19:50:15	0
2001990	99	48	39,5	cyclictest	0	-21	swapper/0	00:30:38	0
2001993	99	47	9,22	cyclictest	1060	-21	snmpd	20:05:31	1
2001993	99	47	40,5	cyclictest	2150870	-21	sendmail_mailqu	23:35:38	1
2001993	99	47	39,6	cyclictest	2029289	-21	systemd	20:51:24	1
2001993	99	47	38,6	cyclictest	2015164	-21	sendmail	20:00:01	1
2001993	99	47	36,7	cyclictest	0	-21	swapper/1	22:01:43	1
2001993	99	46	40,4	cyclictest	2022841	-21	systemd	20:26:18	1
2001993	99	46	38,5	cyclictest	2123774	-21	kworker/u4:4-events_power_efficient	23:05:18	1
2001993	99	46	38,5	cyclictest	2001988	-21	cyclictest	00:16:14	1
2001993	99	46	37,7	cyclictest	2062249	-21	gltestperf	21:45:19	1
2001993	99	46	37,6	cyclictest	2114502	-21	grep	22:50:22	1
2001993	99	46	34,8	cyclictest	0	-21	swapper/1	21:35:34	1
2001993	99	46	18,20	cyclictest	0	-21	swapper/1	22:55:27	1
2001993	99	46	16,21	cyclictest	2084329	-21	ssh	22:12:47	1
2001990	99	46	29,6	cyclictest	2013804	-21	kworker/u4:5+events_unbound	20:12:24	0
2001990	99	46	26,17	cyclictest	0	-21	swapper/0	21:45:27	0
2001993	99	45	35,7	cyclictest	0	-21	swapper/1	23:50:26	1
2001993	99	45	33,9	cyclictest	504	-21	ntpd	22:05:37	1
2001990	99	45	36,7	cyclictest	2063938	-21	kworker/u4:10+events_unbound	21:55:26	0
2001993	99	44	38,4	cyclictest	2189039	-21	ntp_kernel_pll_	00:25:27	1
2001993	99	44	36,5	cyclictest	0	-21	swapper/1	20:20:00	1
2001993	99	44	36,5	cyclictest	0	-21	swapper/1	19:46:10	1
2001993	99	44	28,9	cyclictest	2028033	-21	modprobe	20:50:00	1
2001990	99	44	37,5	cyclictest	2114723	-21	ntp_kernel_err	22:50:27	0
2001993	99	43	14,6	cyclictest	27	1	ktimers/1	19:10:34	1
2001990	99	42	33,7	cyclictest	2017816	-21	latency_hist	20:10:01	0
2001990	99	42	32,6	cyclictest	2027059	-21	aten_r7power_vo	20:45:17	0
2001993	99	41	32,5	cyclictest	0	-21	swapper/1	19:25:36	1
2001993	99	41	14,6	cyclictest	26	1	rcuc/1	19:15:18	1
2001993	99	41	12,3	cyclictest	27	1	ktimers/1	20:40:32	1
2001993	99	40	31,7	cyclictest	0	-21	swapper/1	19:50:13	1
2001993	99	39	26,9	cyclictest	0	-21	swapper/1	20:30:23	1
2001993	99	39	16,6	cyclictest	27	1	ktimers/1	20:20:37	1
2001993	99	34	7,5	cyclictest	27	1	ktimers/1	19:10:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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